Patent Grant
9900177
Home automation systems are becoming increasingly prevalent. Such systems typically allow the integration of multiple “smart” home devices that allow one or more users to remotely control and/or view status information for the smart home devices. A user may wish to view statuses and/or interact with home automation devices from a remote device, such as a mobile phone or tablet computer. To do so, information relevant to the home automation system may need to be transmitted to the remote device being used by the user.
Various arrangements for maintaining an up-to-date home automation model is presented. Such arrangements may be implemented using methods, computerized systems, devices, television receivers, and computer-readable mediums that include instructions executed by one or more processors. Maintaining an up-to-date home automation model may include receiving a first status update of a home automation device installed as part of a home automation system in a home, the home automation system comprising a plurality of home automation devices. An entry of a plurality of entries in a master home automation model may be updated based on the first status update of the home automation device. The master home automation model may be maintained by the home automation host system. The plurality of entries may correspond to home automation device characteristics of the plurality of home automation devices. A numerical identifier may be incremented, this identifier may be used to track status updates related to the home automation system in the home. Within the master home automation model, the incremented numerical identifier may be assigned to the updated entry in the master home automation model.
Embodiments of such an arrangement may include one or more of the following features: A request may be received from a remote device for an update to a remotely-stored home automation model of the home automation system. The remotely-stored home automation model may be stored by the remote device remotely from the master home automation model stored by the home automation host system. The request may indicate a most-recent numerical identifier stored by the remote device. The most-recent numerical identifier received from the remote device may be compared with the numerical identifier of the master home automation model maintained by the home automation host system. Information from the entry of the plurality of entries of the master home automation model may be determined to be transmitted to the remote device based on comparing the most-recent numerical identifier received from the remote device with the numerical identifier of the master home automation model maintained by the home automation host system. The information from the entry of plurality of entries of the master home automation model may be caused to be transmitted to the remote device based on comparing the most-recent numerical identifier received from the remote device with the numerical identifier of the master home automation model maintained by the home automation host system, the information being indicative of the first status update. Prior to receiving the first status update, a second status update of the home automation device installed as part of the home automation system in the home may be received. The entry of the plurality of entries in the master home automation model may be updated based on the second status update of the home automation device, wherein the second status update is subsequently overwritten by the first status update and no request for the update to the remotely-stored home automation model is received from the remote device between updating the entry based on the second status update and updating the entry based on the first status update.
Additionally or alternatively, embodiments of such an arrangement may include one or more of the following features: No information indicative of the second status update may be transmitted to the remote device. A system may include a home automation device and a remote device, wherein the remote device is a wireless device that only intermittently updates the remotely-stored home automation model. A master checksum value may be calculated based on the master home automation model. The master checksum value may be transmitted to the remote device. A remote checksum value may be calculated based on the remotely-stored home automation model. The master checksum value received from the home automation host system may be compared with the calculated remote checksum value. A rebuild of the remotely-stored home automation model may be requested based on comparing the master checksum value with the calculated remote checksum value. In some embodiments, the home automation host system is a television receiver, comprising multiple tuners configured to receive broadcast television channels.
A further understanding of the nature and advantages of various embodiments may be realized by reference to the following figures. In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.
A home automation system may include multiple home automation devices installed within a home (or other form of structure, such as an office building, warehouse, etc.). Such home automation devices may be configured to communicate via a wired or wireless communication protocol with a home automation host. The home automation host may serve to provide commands to home automation devices and receive status updates from such home automation devices. For example, a home automation device may be a “smart” light. The light may be turned on or off by the home automation host. Further, the home automation host may receive status updates from the light, such as information indicative of whether the light is currently turned on or off, its current brightness level, and its current illuminated color. The home automation host may maintain a master home automation model that is indicative of the current statuses of the characteristics of home automation devices installed within the home automation system. By consulting the master home automation model, the current status of the home automation devices of a home automation system can be ascertained.
In many situations, a user may desire to review the current statuses of home automation devices within the home automation system. To view the statuses, the user may use a remote device to access the home automation host. For instance, the user may use a tablet computer that has an application installed that allows the user to view statuses of devices within the home automation system by acquiring such information from the home automation host. As another example, while away from home, a user may use a mobile device, such as a cellular phone, to learn the status of various home automation devices installed within the home. In order for the user to use such a remote device to learn the statuses of home automation devices within the home automation system, status information needs to be transferred from the home automation host to the remote device.
It may be desirable to minimize, or at least decrease, the amount of information needed to be transmitted to the remote device by the home automation host necessary to provide the user with up-to-date statuses of the home automation devices. That is, it may not be desirable for the home automation system to transmit a current status of every characteristic of every home automation device within the home automation system whenever a user desires to review such statuses. By minimizing, or at least decreasing, the amount of status information transmitted to the remote device, the amount of time needed for the remote device to become synchronized with the home automation model maintained by the home automation host may be decreased.
While the home automation host may maintain the master home automation model, one or more remote devices that interact with the home automation host may maintain their own home automation models of the home automation system. The home automation models maintained by such remote devices may not reflect the most recent statuses of characteristics of home automation devices of the home automation system if the remote device has not recently synchronized with the home automation host. For instance, a tablet computer that is disconnected from all networks may have its home automation model become unsynchronized with the master home automation model while the tablet computer is unable to communicate with the home automation host. As such, prior to a user viewing or otherwise interacting with a home automation model stored by a remote device, the home automation model may need to be synchronized with the master home automation model maintained by the home automation host such that the statuses of the home automation devices are current.
Such synchronization between the home automation model maintained by the remote device and the master home automation host may be performed in such a way as to minimize, or at least decrease, the amount of data necessary to transfer from the home automation host to the remote device to bring the remote device's home automation model into synchronization with the master home automation model. The home automation host may maintain the master home automation model (such as in the form of a database, table, tree structure, or other data storage arrangement) indicative of the various statutes of device characteristics of home automation devices within the home automation system. Whenever the home automation host determines that a status of a device characteristic of a home automation device changes, the home automation host records the change to the master home automation model in relation to the device's characteristic. Therefore, an entry corresponding to the characteristic may be updated to indicate the current, up-to-date status. In association with the characteristic, an identifier, such as a numerical identifier, may be stored to the master home automation model. This identifier may overwrite or otherwise displace a previous identifier associated with the last time that particular characteristic was updated within the master home automation model. This numerical identifier may increment for each change recorded to the master home automation model. As changes are recorded to the master home automation model, subsequent numerical identifiers may be also stored in relation with such changes, with such identifiers being incremented. By comparing the numerical identifier associated with the most recent change at the master home automation model and a numerical identifier of a most recent change used to update a home automation model maintained by a remote device, it can be determined which device characteristics have statuses that need to be updated in the remote device's home automation model. In some embodiments, an aspect is that because previous updates are overwritten in the master home automation model, thus only the most recent update to a device characteristic is sent to the remote device. For instance, if since the last time a remote device's home automation model was updated, a particular light switched its status from on to off and off to on fifty times, only the most recent status would be sent to the remote device. For devices that have not had their statuses changed since the last time the remote device's home automation model were updated, no updates may be sent to the remote device. Such concepts are detailed further in relation to the figures.
Various home automation devices 130 may be present and installed in a home automation system within a home (or other form of structure). By way of example, home automation devices 130 can include: door/lock 131, window 132, garage door 133, thermostat 134, refrigerator 135, doorbell 136, security camera 137, and light 138. In various embodiments, various subsets of such home automation devices may be installed within home automation system and/or other home automation devices may be installed within the home automation system. Further, it should be understood that multiple instances of any of home automation devices 130 may be installed within the home automation system present in the home. For instance, home automation devices 130 may include multiple instances of light 138.
Each of home automation devices 130 may be configured to communicate with home automation management engine 110. Home automation devices 130 may be configured to receive commands from home automation management engine 110 and/or provide statuses to home automation management engine 110. Each home automation device of home automation devices 130 may be associated with one or more device characteristics. For example, light 138 may have a single device characteristic: a power characteristic (on or off). Alternatively, a home automation device such as light 138 may have multiple device characteristics, such as: power, brightness, and color. The number of device characteristics associated with each home automation device of home automation devices 130 may be dependent on the type, make, and model of the individual home automation device. Further, the particular device characteristics of a home automation device of home automation devices 130 may vary based on the type of home automation device. For example, refrigerator 135 may have different device characteristics from garage door 133. Home automation devices 130 may individually communicate with home automation management engine 110 either directly (e.g., via a direct wireless protocol, such as Bluetooth® or WiFi Direct®) or via a wireless network (e.g., an ad hoc network, an IEEE 802.15-based network, Zigbee®, etc.). Home automation devices 130 may periodically transmit statuses of various device characteristics or may provide such statuses of device characteristics in response to requests received from home automation management engine 110. Further, at least some of home automation devices 130 may be configured to respond to commands from home automation management engine 110. For example, home automation management engine 110 may be configured to send a command to door/lock 131 that engages the lock. As home automation devices are added to home automation devices 130, home automation management engine 110 may be configured to communicate with, receive status updates from, and send commands to such home automation devices.
Home automation management engine 110 may include model updater 112. Model updater 112 may be in communication with one or more home automation devices installed within a home automation system present in the house. Model updater 112 may be configured to receive status updates from home automation devices 130 and/or commands from home automation management engine 110 that are being transmitted to home automation devices 130 that affect the status of such home automation devices. For example, model updater 112 may receive a message from light 138 that indicates that light 138 has a color device characteristic of “red” for the current color being used to illuminate. As another example, model updater 112 may receive a message from device manager 116 indicating that a command is being sent to light 138 indicative of the device characteristic of color being set to red. As such, model updater 112 receives the current statuses of home automation devices 130. Model updater 112 may use the current statuses of various characteristics for home automation devices 130 to maintain master home automation model 120. As such, information stored to master home automation model 120 is indicative of the current statuses of each home automation device's characteristics. Further detail regarding master home automation model 120 is provided in relation to
Incrementer 111 may be used to track updates performed by model updater 112 to master home automation model 120. Each time an update is to be made to home automation model database by model updater 112, incrementer 111 may be incremented (whether incrementer 111 is incremented before or after an update may vary by embodiment). Therefore, incrementer 111 may provide model updater 112 within incremented numerical value for each update to be made to master home automation model 120. In association with each update made to master home automation model 120, model updater 112 may store the incremented numerical value received from incrementer 111. As a simple example, for a first update made to master home automation model 120, a numerical value of “1” may be generated by incrementer 111 and stored in association with the device characteristic in master home automation model 120 that was updated; for a second update made to master home automation model 120, a numerical value of “2” may be generated and output by incrementer 111 and stored in association with the device characteristic in master home automation model 120 that was updated; and for a third update made to master home automation model 120, a numerical value of “3” may be generated and output by incrementer 111 and stored in association with the device characteristic in master home automation model 120 that was updated (and so on). If the same device characteristic is updated multiple times, the device characteristic in the master home automation model 120 may be updated and the associated numerical value stored to the master home automation model 120 may receive only the most recent assigned numerical value.
Device manager 116 may be configured to send commands to home automation devices 130. Device manager 116 may send such commands based on rules or other settings maintained by home automation management engine 110. Device manager 116 may also send commands to home automation devices 130 in response to requests received from a user, which may have been made either directly to home automation management engine 110 or from a remote device, such as remote device 140.
Remote device 140 may represent a remote device through which a user desires to view statuses of home automation devices 130. Remote device 140 may be a remote computer system, a cellular phone, a tablet computer, laptop, or any other computerized device through which a user desires to interact with home automation management engine 110. Remote device 140 may use wireless communication to communicate with a network, such as network 150. It should be understood that in other embodiments, multiple remote devices may maintain home automation models similar to how remote device 140 maintains home automation model 141. Separate from master home automation model 120, remote device 140 may maintain home automation model 141. Ideally, home automation model 141 may stay synchronized with master home automation model 120. Home automation model 141 may be used by remote device 140 to provide a user with an indication of the current statuses of device characteristics of home automation devices 130. For instance, a user may access an application being executed by remote device 140 to determine the current statuses of various characteristics of home automation devices 130. For instance, the user may be desiring to know if refrigerator 135 is turned on or if window 132 is locked. Home automation model 141, as maintained by remote device 140, may resemble the structure of master home automation model 120. However, in some embodiments, only a most recent (e.g., greatest in value) identifier associated with information used to update master home automation model 120 is maintained, other identifiers may not be necessary to be saved.
While ideally home automation model 141 is fully synchronized with master home automation model 120, this may not always be possible. For instance, remote device 140 may periodically not be in communication with home automation management engine 110. For example, a connection between remote device 140 and network 150 (represented by dotted line 151) may not always be available. As another example, remote device 140 may rely on an application to be executed by remote device 140 to stay in communication with home automation management engine 110 and update home automation model 141. If such an application is not being executed by remote device 140, it may not be possible to keep home automation model 141 synchronized with master home automation model 120. When remote device 140 is not in communication with home automation management engine 110, it may not be possible to keep home automation model 141 fully synchronized with master home automation model 120. For example, if, while remote device 140 is not in communication with home automation management engine 110, a device characteristic of window 132 changes from open to closed in master home automation model 120, at that time it may not be possible to update home automation model 141 to reflect the new status of window 132.
Remote model update engine 115 of home automation management engine 110 may be tasked with keeping home automation model 141 synchronized with master home automation model 120. Prior to remote device 140 providing an indication of statuses of device characteristics of home automation devices 130 to a user (or in some other way outputting such statuses), remote device 140 may check synchronization with master home automation model 120. To do this, remote device 140 may transmit a request to remote model update engine 115 via network 150. The request transmitted to remote model update engine 115 may be indicative of a request for synchronization and also an identifier representative of a last device characteristic update stored to home automation model 141. This identifier, which may be a numerical identifier, corresponds to an earlier generated identifier from incrementer 111 used in combination with model updater 112 to update master home automation model 120. That is, the identifier provided by mobile device 142 remote model update engine 115 corresponds to the last update synchronized from master home automation model 120 to home automation model 141. As such, it may be possible that, since the update associated with the identifier provided in the request that thousands of updates to device characteristics may have been made to master home automation model 120, no updates to device characteristics may have been made to master home automation model 120, or some number of updates in between.
It should be understood that regardless of the number of updates made to master home automation model 120, the storage size of master home automation model 120 will not vary significantly with time. Since only a current status of each device characteristic of home automation devices of home automation devices 130 is stored as part of master home automation model 120, the size of master home automation model 120 will not substantively increase based on the number of updates made to master home automation model 120. For instance, if light 138 changes its device characteristic from on to off, and off to on 1000 times, master home automation model 120 only stores the most recent status (along with an associated incremented identifier). The size of master home automation model 120 may be more directly dependent on the number of device characteristics (and, thus, the number of home automation devices) installed within the home automation system.
Remote model update engine 115 may receive the identifier as part of a request from remote device 140 and identifier comparator 114 may compare it to the most recent identifier added to master home automation model 120. If updates to master home automation model 120 has been made since the last time home automation model 141 has been updated, identifier comparator 114 identifies the difference between the values of the identifiers. This difference between the value of the identifier received from remote device 140 and the most recent identifier added to master home automation model 120 can be used to determine which device characteristics in home automation model 141 may be unsynchronized. For example, if the identifier received by remote model update engine 115 is 27 and the most recent identifier used to update master home automation model 120 is 35, the device characteristics associated with identifiers 28 through 35 in master home automation model 120 may be used to update home automation model 141. Besides these updates, home automation model 141 may be expected to otherwise be synchronized. The device characteristics associated with identifiers 28 to 35 may be transmitted by remote model update engine 115 to remote device 140 for use in updating home automation model 141. Once these device characteristics have been used to update home automation model 141, it can be expected that home automation model 141 will be synchronized with master home automation model 120 and home automation model 141 can be used to output statuses of home automation devices 130 for presentation to a user or to some other destination.
It may be possible for master home automation model 120 to become unsynchronized with home automation model 141 such that device characteristics identified by identifier comparator 114 and remote model update engine 115 as being needed to be updated at home automation model 141 are insufficient to fully synchronize the models. For instance, due to a long period of time elapsing since the last time home automation model 141 was updated, incrementer 111 may have reset its count. To confirm that home automation model 141 matches master home automation model 120 after device characteristics have been provided to home automation model 141 to bring home automation model 141 into synchronization with master home automation model 120, a checksum may be computed based on the values present within home automation model 141 by remote device 140. Similarly, home automation management engine 110 may use checksum engine 113 to compute a checksum value for master home automation model 120. These two checksum values may be compared, either by home automation management engine 110 or by remote device 140. If the checksum values do not match, it can be assumed that home automation model 141 varies in some respect from master home automation model 120. If such an occurrence is identified, home automation model 141 may be completely rebuilt from master home automation model 120 by transferring all device characteristics from master home automation model 120 to home automation model 141. If the checksum values match, it is determined that home automation model 141 is fully synchronized with master home automation model 120.
Device identifier 220 may serve to identify each home automation device present within home automation system. In master home automation model 200, device identifier 220 is shown as a name. It should be understood, that in some embodiments, a numerical identifier, such as a Mac address, may be used to uniquely identify each device present within a home automation system. For each device, one or more device characteristics may be present. For instance, “garage door” may have only a single device characteristic in device characteristics 230. However, another device, such as “light” may have three device characteristics in device characteristics 230. The number of device characteristics associated with any particular home automation device may be dependent on that particular type, make, and/or model of home automation device. Current statuses 240 may indicate the current status of the corresponding device characteristic. For instance, “35” refers to the temperature in degrees of the “Refrigerator Temperature” of the “Refrigerator.” In addition to keeping track of the particular device characteristics 230 of devices in the home automation system, a master home automation model may keep track of the particular devices installed in the home automation system. Either maintained as part of the home automation model table or separately, information indicative of the home automation devices in the home automation system, represented here as devices in system 250, may be tracked to determine if home automation devices have been added or subtracted from the home automation system.
In master home automation model 200, as updates to device characteristics 230 are made, an identifier may be stored in relation to the device characteristic in update count 210. Each new identifier recorded to update count 210 may be incremented such as n=n+1, where n is the identifier. As such, in some embodiments, the identifiers may be numeric values that increment by one for each update made to master home automation model 200. If a particular device characteristic of device characteristics 230 is updated multiple times, the current status of that device characteristic may be overwritten with the most up-to-date value and the previous identifier in the corresponding update count may be replaced with the most recent identifier. As such, despite updates being recorded to master home automation model 200, the size of the model will not vary significantly based on the number of updates recorded to the model (but may rather increase in size with an increase in the number of device characteristics 230 stored).
Identifier 301, which has a value of one, has been linked with door/lock and its device characteristic of open/closed. Identifier 301 is present because master home automation model 300 has been updated such that the device characteristic opened/closed now has a current status of “open”. The next update made to master home automation model 300, based on a change at a home automation device, is to the security camera. Identifier 302, which has a value of two, has been linked with the security camera and its device characteristic of on/off. Identifier 302 is recorded to master home automation model 300 because the device characteristic has been updated such that the device characteristic on/off now has a current status of “off”.
Notably, there is no identifier “3” in update count 210, but there is an identifier “4.” This is indicative of a situation in which an update corresponding to three in update count 210 was made but was subsequently overwritten by a later update, such as any of those corresponding to identifiers four through twelve. Accordingly, if a remote device's home automation model was updated based on the current state of master home automation model 300, no information related to identifier three would be provided to the remote device since it is no longer relevant to a current status of a home automation device. Identifier 303, which has a value of four, corresponds to the garage door home automation device, which has a device characteristic of opened/closed. The presence of identifier 303 is indicative of the status of this device characteristic being updated to open. Identifier 304, which has a value of five, corresponds to the light and its device characteristic of color. The presence of identifier 304 is indicative of the status of this device characteristic being updated to green. Identifiers 305, 306, and 307 represent similar updates to the master home automation model 300.
Of note, identifier 308 has a value of twelve, indicating the devices in the home automation system have changed. This may be indicative of a home automation device being added or subtracted from the home automation system. Thus, to the home automation model maintained by remote devices, a device, along with its one or more associated device characteristics, may need to be added or subtracted. Whether a device has been added to or subtracted from the master home automation model may be tracked similarly to a characteristic of device. That is, identifier 308 may be assigned to an entry corresponding to a listing of devices in the home automation system when an update has been made to such a list.
For identifiers missing between the remote device's previous most recent identifier (six) and the master home automation model's most recent identifier (twelve), it may be assumed that the statuses of device characteristics associated with these missing identifiers were overwritten prior to this update of the remote devices home automation model being performed, and are thus irrelevant to such an update that is concerned with only the current status of device characteristics.
Various methods may be performed using the home automation system of
At step 510, the home automation management engine may receive a status of a home automation device. The status of the home automation device may be received from the home automation device itself. The status may be indicative of a particular device characteristic of the home automation device. In some instances, the status of a device characteristic of a home automation device may be derived from a command that is being sent to the home automation device. For instance, if the home automation management engine is sending a command to a light to turn it on, a device characteristic of on/off may be determined to be in the on state based on the command being sent to the light.
At step 515, a counter may be incremented. The counter may be an incremented response to the device characteristic of a home automation device being updated to a master home automation model. Referring to home automation system 100, incrementer 111 may function as the counter. At step 520, the master home automation model may be updated to be indicative of the status received at step 510 and also to indicate the incremented identifier. Such a function may be performed by model updater 112 of home automation system 100. The incremented identifier may be stored in relation with the updated status of the device characteristic of the home automation device. Therefore, in the master home automation model, it can be determined that a particular device characteristic of a home automation device corresponds with the identifier. Steps 510 through 520 may be performed repeatedly as the statuses of various device characteristics of home automation devices in a home automation system change. For instance, it may be possible that steps 510 to 520 may be performed thousands of times before step 525 is performed. In other situations, step 525 may be performed after a single iteration, or even possibly zero iterations, of steps 510 to 520.
At step 525, a request may be received by the home automation management engine for an update to a home automation model maintained by a remote device. This request may be received from the remote device. The request may specify the last identifier for which the remote device's home automation model was updated. As such, if the master home automation model contains any subsequent identifiers to the identifier indicated in the request, the remote device's home automation model requires an update to be brought into synchronization with the master home automation model.
At step 530, the home automation management engine may compare the received identifier of those identifiers included as part of the request from the remote device with a current identifier stored in relation to the master home automation model. If the difference is present between the two numbers, the home automation model maintained by the remote device is out of synchronization with the master home automation model. If the values match, later steps of method 500 may be superfluous because the models are already in synchronization. If such an occurrence is present, method 500 may end at step 530.
Based on the comparison of the identifier values, at step 540, device characteristics may be identified in the master home automation model that are to be updated at the remote devices home automation model. Information about each device characteristic in the master home automation model having an identifier greater than the identifier received from the remote device in the request may be marked for transmission. At step 545, such information may be transmitted to the remote device for use in updating its home automation database. Once such information has been used to update the remote device's home automation model, the models are expected to be synchronized.
At step 605, a checksum value may be calculated by the home automation management engine for the master home automation model. The calculated checksum value may use each value of an update count, device identifier, device characteristic, and/or current status. In some embodiments, the calculated checksum is not based on the update count because not all of such values are maintained by the remote device. Referring to
Steps similar to steps 510-520 of method 500 may be performed as part of method 600 prior to or after step 605 to keep the master home automation model up-to-date. Steps 610-625 may be performed similarly to steps 525-545, as detailed in relation to method 500 of
Once the home automation model has been updated at the remote device, the home automation model of the remote device may be used to calculate a checksum value at step 630. In some embodiments, this checksum value is calculated by the remote device. At step 635, in some embodiments, the checksum value calculated by the remote device is transferred to and received by the home automation management engine. In many embodiments, the checksum value calculated for the master home automation model by the home automation management engine may be transmitted to and received by the remote device. As such, following step 635, either the home automation management engine or the remote device has both checksum values. In many embodiments, the remote device will have both the checksum values for comparison.
At step 640, either the home automation management engine or the remote device performs a comparison of the two checksum values. If the two checksum values match at step 640, it has been determined that the home automation model of the remote device and the master home automation model match. The home automation model at the remote device is implemented at step 645 and can then be used for outputting information about the current status of home automation devices in the home automation system. For example, the remote device may output to a user indications of the current status of home automation devices of the home automation system.
Returning to step 640, if the two checksum values, calculated for the home automation model of the remote device and the master home automation model, do not match, method 600 may proceed from step 640 to step 650. At step 650, a complete home automation rebuilds may be requested by the remote device or initiated by the home automation management engine for the remote device. Since the two home automation models are out of synchronization, it is assumed that the master home automation model is correct. As such, the remote device's home automation model is completely rebuilt based on information from the master home automation model. At step 655, the complete home automation model is transmitted to the remote device. At step 655, all information necessary for the remote device to rebuild its home automation model may be transmitted from the home automation management engine to the remote device.
As previously noted, the home automation management engine may be part of a television receiver. As such, a television receiver may serve as the home automation host for a home automation system of a home (or other form of structure).
Television service provider system 710 and satellite transmitter equipment 720 may be operated by a television service provider. A television service provider may distribute television channels, on-demand programming, programming information, and/or other services to users. Television service provider system 710 may receive feeds of one or more television channels from various sources. Such television channels may include multiple television channels that contain the same content (but may be in different formats, such as high-definition and standard-definition). To distribute such television channels to users, feeds of the television channels may be relayed to user equipment via one or more satellites via transponder streams. Satellite transmitter equipment 720 may be used to transmit a feed of one or more television channels from television service provider system 710 to one or more satellites 730. While a single television service provider system 710 and satellite transmitter equipment 720 are illustrated as part of satellite television distribution system 700, it should be understood that multiple instances of transmitter equipment may be used, possibly scattered geographically to communicate with satellites 730. Such multiple instances of satellite transmitting equipment may communicate with the same or with different satellites. Different television channels may be transmitted to satellites 730 from different instances of transmitting equipment. For instance, a different satellite dish of satellite transmitter equipment 720 may be used for communication with satellites in different orbital slots.
Satellites 730 may be configured to receive signals, such as streams of television channels, from one or more satellite uplinks such as satellite transmitter equipment 720. Satellites 730 may relay received signals from satellite transmitter equipment 720 (and/or other satellite transmitter equipment) to multiple instances of user equipment via transponder streams. Different frequencies may be used for uplink signals 770 from transponder stream 780. Each satellite 730 may be in a different orbital slot, such that the signal paths between each satellite, transmitter equipment, and user equipment vary. Each satellite 730 may have multiple transponders operating at different transmit frequencies. Multiple satellites 730 may be used to relay television channels from television service provider system 710 to satellite dish 740. Different television channels may be carried using different satellites and/or different transponders. Different television channels may also be carried using different transponders of the same satellite; thus, such television channels may be transmitted at different frequencies and/or different frequency ranges. As an example, a first and second television channel may be carried on a first transponder of satellite 730-1 (and thus be part of a first transponder stream). A third, fourth, and fifth television channel may be carried using a different satellite or a different transponder of the same satellite relaying the transponder stream at a different frequency (and thus be part of a second transponder stream). A transponder stream transmitted by a particular transponder of a particular satellite may include a finite number of television channels, such as seven. Accordingly, if many television channels are to be made available for viewing and recording, multiple transponder streams may be necessary to transmit all of the television channels to the instances of user equipment.
Satellite dish 740 may be a piece of user equipment that is used to receive transponder streams from one or more satellites, such as satellites 730. Satellite dish 740 may be provided to a user for use on a subscription basis to receive television channels provided by the television service provider system 710, satellite transmitter equipment 720, and/or satellites 730. Satellite dish 740 may be configured to relay transponder streams from multiple satellites and/or multiple transponders of the same satellite to television receiver 750. Based on the characteristics of television receiver 750 and/or satellite dish 740, it may only be possible to capture transponder streams from a limited number of transponders concurrently. For example, a tuner of television receiver 750 may only be able to tune to a single transponder stream from a transponder of a single satellite at a time.
In communication with satellite dish 740 may be one or more sets of receiving equipment. Receiving equipment may be configured to decode signals received from satellites 730 via satellite dish 740 for display on a display device, such as television 760. Receiving equipment may be incorporated as part of a television or may be part of a separate device, commonly referred to as a set-top box (STB). Receiving equipment may include a satellite tuner configured to receive television channels via a satellite. In
Television 760 may be used to present video and/or audio decoded by television receiver 750. Television receiver 750 may also output a display of one or more interfaces to television 760, such as an electronic programming guide (EPG). In some embodiments, a display device other than a television may be used.
Uplink signal 770-1 represents a signal between satellite transmitter equipment 720 and satellite 730-1. Uplink signal 770-2 represents a signal between satellite transmitter equipment 720 and satellite 730-2. Each of uplink signals 770 may contain streams of one or more different television channels. For example, uplink signal 770-1 may contain a certain group of television channels, while uplink signal 770-2 contains a different grouping of television channels. Each of these television channels may be scrambled such that unauthorized persons are prevented from accessing the television channels.
Transponder stream 780-1 represents a signal between satellite 730-1 and satellite dish 740. Transponder stream 780-2 represents a signal between satellite 730-2 and satellite dish 740. Each of transponder streams 780 may contain one or more different television channels in the form of transponder streams, which may be at least partially scrambled. For example, transponder stream 780-1 may include a first transponder stream containing a first group of television channels, while transponder stream 780-2 may include a second transponder stream containing a different group of television channels. A satellite may transmit multiple transponder streams to user equipment. For example, a typical satellite may relay thirty-two transponder streams via thirty-two transponders to user equipment. Further, spot beams are possible. For example, a satellite may be able to transmit a transponder stream to a particular geographic region (e.g., to distribute local television channels to the relevant market). Different television channels may be transmitted using the same frequency of the transponder stream to a different geographic region.
Network 790 may serve as a secondary communication channel between television service provider system 710 and television receiver 750. Via such a secondary communication channel, bidirectional exchange of data may occur. As such, data may be transmitted to television service provider system 710 via network 790. Data may also be transmitted from television service provider system 710 to television receiver 750 via network 790. Network 790 may be the Internet. While audio and video services may be provided to television receiver 750 via satellites 730, feedback from television receiver 750 to television service provider system 710 may be transmitted via network 790.
Processors 810 may include one or more specialized and/or general-purpose processors configured to perform processes such as tuning to a particular channel, accessing and causing EPG information from EPG database 830 to be displayed, and/or receiving and processing input from a user. For example, processors 810 may include one or more processors dedicated to decoding video signals from a particular format, such as MPEG, for output and display on a television and for performing decryption. Control processor 810-1 may include home automation management engine 110. It should be understood that the functions performed by various modules of
Control processor 810-1 may communicate with tuning management processor 810-2. Control processor 810-1 may control the recording of television channels based on timers stored in DVR database 845. Control processor 810-1 may initiate recording of a television channel by sending a record command along with an indication of the television channel to be recorded to tuning management processor 810-2. Control processor 810-1 may not send a second record command (if additional recording is to begin at the same time) until an acknowledgement that recording of the first television channel has successfully been received and initiated by tuning management processor 810-2. Control processor 810-1 may also provide commands to tuning management processor 810-2 when recording of a television channel is to cease. In addition to providing commands relating to the recording of television channels, control processor 810-1 may provide commands to tuning management processor 810-2 that indicate television channels to be output to audio/video decoder 833 for output to a presentation device, such as a television.
Control processor 810-1 may also communicate with network interface 820 and user interface 850. Control processor 810-1 may handle incoming data from network interface 820 and user interface 850. Additionally, control processor 810-1 may be configured to output data via network interface 820.
Tuners 815 may include one or more tuners used to tune to television channels, such as television channels transmitted via satellite or cable. In the illustrated embodiment of television receiver 800, three tuners are present (tuner 815-1, tuner 815-2, and tuner 815-3). Each tuner contained in tuners 815 may be capable of receiving and processing a single stream of data from a satellite transponder (or a cable RF channel) at a given time. As such, a single tuner may tune to a single transponder (or, for a cable network, a single cable RF channel). If tuners 815 include multiple tuners, one tuner may be used to tune to a television channel on a first transponder stream for display using a television, while another tuner may be used to tune to a television channel on a second transponder for recording and viewing at some other time. Still another tuner may be used to check various television channels to determine if they are available or not. If multiple television channels transmitted on the same transponder stream are desired, a single tuner of tuners 815 may be used to receive the signal containing the multiple television channels for presentation and/or recording. Tuners 815 may receive commands from tuning management processor 810-2. Such commands may instruct tuners 815 which frequencies are to be used for tuning. Tuning management processor 810-2 may access one or more stored tables to determine a correct transponder stream (a correct satellite and transponder) to which to tune to receive a desired television channel.
Network interface 820 may be used to communicate via an alternate communication channel with a television service provider. For example, the primary communication channel may be via satellite (which may be unidirectional to the STB) and the alternate communication channel (which may be bidirectional) may be via a network, such as the Internet. Referring back to
Storage medium 825 may represent a non-transitory computer-readable storage medium. Storage medium 825 may include memory and/or a hard drive. Storage medium 825 may be used to store information received from one or more satellites and/or information received via network interface 820. Storage medium 825 may store information related to EPG database 830, master home automation model 120 (as previously detailed), and/or DVR database 845. Recorded television programs may be stored using storage medium 825.
EPG database 830 may store information related to television channels and the timing of programs appearing on such television channels. EPG database 830 may be stored using storage medium 825, which may be a hard drive. Information from EPG database 830 may be used to inform users of what television channels or programs are popular and/or provide recommendations to the user. Information from EPG database 830 may provide the user with a visual interface displayed by a television (or other form of display device) that allows a user to browse and select television channels and/or television programs for viewing and/or recording. Information used to populate EPG database 830 may be received via network interface 820 and/or via satellites, such as satellites 730 of
Audio/video decoder 833 may serve to convert encoded video and audio into a format suitable for output to a display device. For instance, audio/video decoder 833 may receive MPEG video and audio from storage medium 825 or descrambling engine 865 to be output to a television. MPEG video and audio from storage medium 824 may have been recorded to DVR database 845 as part of a previously-recorded television program. Audio/video decoder 833 may convert the MPEG video and audio into a format appropriate to be displayed by a television or other form of display device and audio into a format appropriate to be output from speakers, respectively.
Television interface 835 may serve to output a signal to a television (or another form of display device) in a proper format for display of video and playback of audio. As such, television interface 835 may output one or more television channels and stored television programming from storage medium 825 (e.g., television programs from DVR database 845 and/or information from EPG database 830) to a television for presentation.
A Digital Video Recorder (DVR) device may permit a television channel to be recorded for a period of time. DVR functionality of television receiver 800 may be managed by control processor 810-1. Control processor 810-1 may coordinate the television channel, start time, and stop time of when recording of a television channel is to occur. DVR database 845 may store information related to the recording of television stations. DVR database 845 may store timers that are used by control processor 810-1 to determine when a television channel should be tuned to and recorded to DVR database 845 of storage medium 825. In some embodiments, a limited amount of storage medium 825 may be devoted to DVR database 845. Timers may be set by the television service provider and/or one or more users of television receiver 800.
The DVR functionality of control processor 810-1 may have multiple modes. First, the DVR functionality of control processor 810-1 may be configured to record individual television programs selected by a user to DVR database 845. Using EPG database 830, a user may select a particular television program. Based on the date, time period, and television channel indicated by EPG database 830, control processor 810-1 may record the associated television program to DVR database 845. Second, DVR database 845 may be used to store recordings of predefined periods of time on one or more television channels defined by a television service provider. These predefined periods of time may include one or more television programs. For example, primetime programming on a particular television network may be recorded each weekday night. Further, multiple television channels may be recorded for such predefined periods of time. Such recording of television channels for predefined periods of time may be defined by the television service provider.
As an example of this second mode of DVR functionality, a television service provider may configure television receiver 800 to record television programming on multiple, predefined television channels for a predefined period of time, on predefined dates. For instance, a television service provider may configure television receiver 800 such that television programming may be recorded from 7 to 10 PM on NBC, ABC, CBS, and FOX on each weeknight. If a television program is selected for recording by a user and is also specified for recording by the television service provider, the user selection may serve as an indication to save the television program for an extended time (beyond the time which the predefined recording would otherwise be saved).
Further, DVR functionality may include control processor 810-1, or some other processing device of television receive 800, determining multiple television channels that can be recorded simultaneously using a single tuner to receive the multiple television channels. For example, a user may select a particular television program that is to be broadcast on a particular television channel for recording. Based on the television channel selected, control processor 810-1 may access a database, such as a stored database, to determine one or more additional television channels that are transmitted as part of the same transponder stream. In some embodiments, rather than consulting group database 844 to determine which television channels can be received concurrently using a single tuner, control processor 810-1 may examine a stored data storage arrangement to identify other television channels associated with the same frequency and/or satellite and transponder.
User interface 850 may include a remote control (physically separate from television receiver 800) and/or one or more buttons on television receiver 800 that allow a user to interact with television receiver 800. User interface 850 may be used to select a television channel for viewing, view information from EPG database 830, and/or program a timer stored to DVR database 845, wherein the timer is used to control the DVR functionality of control processor 810-1.
Referring back to tuners 815, television channels received via satellite (or cable) may contain at least some scrambled data. Packets of audio and video may be scrambled to prevent unauthorized users (e.g., nonsubscribers) from receiving television programming without paying the television service provider. When a tuner of tuners 815 is receiving data from a particular transponder of a satellite, the transponder stream may be a series of data packets corresponding to multiple television channels. Each data packet may contain a packet identifier (PID), which can be determined to be associated with a particular television channel. Particular data packets, referred to as entitlement control messages (ECMs), may be periodically transmitted. ECMs may be associated with another PID and may be encrypted; television receiver 800 may use decryption engine 860 (which may be in the form of a removable or non-removable smart card) to decrypt ECMs. Decryption of an ECM may only be possible if the user has authorization to access the particular television channel associated with the ECM. When an ECM is determined to correspond to a television channel being stored and/or displayed, the ECM may be provided to decryption engine 860 for decryption.
When decryption engine 860 receives an encrypted ECM, decryption engine 860 may decrypt the ECM to obtain some number of control words. In some embodiments, from each ECM received by decryption engine 860, two control words are obtained. In some embodiments, when decryption engine 860 receives an ECM, it compares the ECM to the previously received ECM. If the two ECMs match, the second ECM is not decrypted because the same control words would be obtained. In other embodiments, each ECM received by decryption engine 860 is decrypted; however, if a second ECM matches a first ECM, the outputted control words will match; thus, effectively, the second ECM does not affect the control words output by decryption engine 860. Decryption engine 860 may be permanently part of television receiver 800 or may be configured to be inserted and removed from television receiver 800.
Tuning management processor 810-2 may be in communication with tuners 815 and control processor 810-1. Tuning management processor 810-2 may be configured to receive commands from control processor 810-1. Such commands may indicate when to start/stop recording of a television channel and/or when to start/stop causing a television channel to be output to a television. Tuning management processor 810-2 may control tuners 815. Tuning management processor 810-2 may provide commands to tuners 815 that instruct the tuners to which satellite, transponder, and/or frequency to tune. From tuners 815, tuning management processor 810-2 may receive transponder streams of packetized data. As previously detailed, some or all of these packets may include a PID that identifies the content of the packet.
Tuning management processor 810-2 may be configured to create one or more PID filters 855 that sort packets received from tuners 815 based on the PIDs. When a tuner is initially tuned to a particular frequency (e.g., to a particular transponder of a satellite) a PID filter may be created based on a particular PID. PID filters 855 may be configured to filter data packets based on PIDs. In some embodiments, PID filters 855 are created and executed by tuning management processor 810-2. In other embodiments, separate hardware may be used to create and execute such PID filters. Depending on a television channel selected for recording/viewing, a PID filter may be created to filter the video and audio packets associated with the television channel. For example, if a transponder data stream includes multiple television channels, data packets corresponding to a television channel, that is not desired to be stored or displayed by the user, may be ignored by PID filters 855. As such, only data packets corresponding to the one or more television channels desired to be stored and/or displayed may be filtered and passed to either descrambling engine 865 or decryption engine 860; other data packets may be ignored. For each television channel, a stream of video packets, a stream of audio packets (one or both of the audio programs) and/or a stream of ECM packets may be present, each stream identified by a PID. In some embodiments, a common ECM stream may be used for multiple television channels. Additional data packets corresponding to other information, such as updates to a network information table, may be appropriately routed by PID filters 855. At a given time, one or multiple PID filters may be executed by tuning management processor 810-2.
Descrambling engine 865 may use the control words output by decryption engine 860 in order to descramble video and/or audio corresponding to television channels for storage and/or presentation. Video and/or audio data contained in the transponder data stream received by tuners 815 may be scrambled. Video and/or audio data may be descrambled by descrambling engine 865 using a particular control word. Which control word output by decryption engine 860 to be used for successful descrambling may be indicated by a scramble control identifier present within the data packet containing the scrambled video or audio. Descrambled video and/or audio may be output by descrambling engine 865 to storage medium 825 for storage (in DVR database 845) and/or to audio/video decoder 833 for output to a television or other presentation equipment via television interface 835.
Television receiver 800 may be configured to communicate wirelessly with home automation devices to allow home automation management engine 110 to communicate with such home automation devices (e.g., to receive status updates). In some embodiments, television receiver 800 is connected with an external device, such as a dongle, that allows for wireless communication with home automation devices. In some other embodiments, home automation management engine 110 may be implemented in an “overlay” device that is installed between a television receiver and a display device, allowing information to be presented to a user overlaid onto a video feed received from the television receiver.
For simplicity, television receiver 800 of
The computer system 900 is shown comprising hardware elements that can be electrically coupled via a bus 905 (or may otherwise be in communication, as appropriate). The hardware elements may include one or more processors 910, including without limitation one or more general-purpose processors and/or one or more special-purpose processors (such as digital signal processing chips, graphics acceleration processors, video decoders, and/or the like); one or more input devices 915, which can include without limitation a mouse, a keyboard, remote control, and/or the like; and one or more output devices 920, which can include without limitation a display device, a printer, and/or the like.
The computer system 900 may further include (and/or be in communication with) one or more non-transitory storage devices 925, which can comprise, without limitation, local and/or network accessible storage, and/or can include, without limitation, a disk drive, a drive array, an optical storage device, a solid-state storage device, such as a random access memory (“RAM”), and/or a read-only memory (“ROM”), which can be programmable, flash-updateable and/or the like. Such storage devices may be configured to implement any appropriate data stores, including without limitation, various file systems, database structures, and/or the like.
The computer system 900 might also include a communications subsystem 930, which can include without limitation a modem, a network card (wireless or wired), an infrared communication device, a wireless communication device, and/or a chipset (such as a Bluetooth™ device, an 802.11 device, a WiFi device, a WiMax device, cellular communication device, etc.), and/or the like. The communications subsystem 930 may permit data to be exchanged with a network (such as the network described below, to name one example), other computer systems, and/or any other devices described herein. In many embodiments, the computer system 900 will further comprise a working memory 935, which can include a RAM or ROM device, as described above.
The computer system 900 also can comprise software elements, shown as being currently located within the working memory 935, including an operating system 940, device drivers, executable libraries, and/or other code, such as one or more application programs 945, which may comprise computer programs provided by various embodiments, and/or may be designed to implement methods, and/or configure systems, provided by other embodiments, as described herein. Merely by way of example, one or more procedures described with respect to the method(s) discussed above might be implemented as code and/or instructions executable by a computer (and/or a processor within a computer); in an aspect, then, such code and/or instructions can be used to configure and/or adapt a general purpose computer (or other device) to perform one or more operations in accordance with the described methods.
A set of these instructions and/or code might be stored on a non-transitory computer-readable storage medium, such as the non-transitory storage device(s) 925 described above. In some cases, the storage medium might be incorporated within a computer system, such as computer system 900. In other embodiments, the storage medium might be separate from a computer system (e.g., a removable medium, such as a compact disc), and/or provided in an installation package, such that the storage medium can be used to program, configure, and/or adapt a general purpose computer with the instructions/code stored thereon. These instructions might take the form of executable code, which is executable by the computer system 900 and/or might take the form of source and/or installable code, which, upon compilation and/or installation on the computer system 900 (e.g., using any of a variety of generally available compilers, installation programs, compression/decompression utilities, etc.), then takes the form of executable code.
It will be apparent to those skilled in the art that substantial variations may be made in accordance with specific requirements. For example, customized hardware might also be used, and/or particular elements might be implemented in hardware, software (including portable software, such as applets, etc.), or both. Further, connection to other computing devices such as network input/output devices may be employed.
As mentioned above, in one aspect, some embodiments may employ a computer system (such as the computer system 900) to perform methods in accordance with various embodiments of the invention. According to a set of embodiments, some or all of the procedures of such methods are performed by the computer system 900 in response to processor 910 executing one or more sequences of one or more instructions (which might be incorporated into the operating system 940 and/or other code, such as an application program 945) contained in the working memory 935. Such instructions may be read into the working memory 935 from another computer-readable medium, such as one or more of the non-transitory storage device(s) 925. Merely by way of example, execution of the sequences of instructions contained in the working memory 935 might cause the processor(s) 910 to perform one or more procedures of the methods described herein.
The terms “machine-readable medium,” “computer-readable storage medium” and “computer-readable medium,” as used herein, refer to any medium that participates in providing data that causes a machine to operate in a specific fashion. These mediums may be non-transitory. In an embodiment implemented using the computer system 900, various computer-readable media might be involved in providing instructions/code to processor(s) 910 for execution and/or might be used to store and/or carry such instructions/code. In many implementations, a computer-readable medium is a physical and/or tangible storage medium. Such a medium may take the form of a non-volatile media or volatile media. Non-volatile media include, for example, optical and/or magnetic disks, such as the non-transitory storage device(s) 925. Volatile media include, without limitation, dynamic memory, such as the working memory 935.
Common forms of physical and/or tangible computer-readable media include, for example, a floppy disk, a flexible disk, hard disk, magnetic tape, or any other magnetic medium, a CD-ROM, any other optical medium, any other physical medium with patterns of marks, a RAM, a PROM, EPROM, a FLASH-EPROM, any other memory chip or cartridge, or any other medium from which a computer can read instructions and/or code.
Various forms of computer-readable media may be involved in carrying one or more sequences of one or more instructions to the processor(s) 910 for execution. Merely by way of example, the instructions may initially be carried on a magnetic disk and/or optical disc of a remote computer. A remote computer might load the instructions into its dynamic memory and send the instructions as signals over a transmission medium to be received and/or executed by the computer system 900.
The communications subsystem 930 (and/or components thereof) generally will receive signals, and the bus 905 then might carry the signals (and/or the data, instructions, etc. carried by the signals) to the working memory 935, from which the processor(s) 910 retrieves and executes the instructions. The instructions received by the working memory 935 may optionally be stored on a non-transitory storage device 925 either before or after execution by the processor(s) 910.
It should further be understood that the components of computer system 900 can be distributed across a network. For example, some processing may be performed in one location using a first processor while other processing may be performed by another processor remote from the first processor. Other components of computer system 900 may be similarly distributed. As such, computer system 900 may be interpreted as a distributed computing system that performs processing in multiple locations. In some instances, computer system 900 may be interpreted as a single computing device, such as a distinct laptop, desktop computer, or the like, depending on the context.
The methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For instance, in alternative configurations, the methods may be performed in an order different from that described, and/or various stages may be added, omitted, and/or combined. Also, features described with respect to certain configurations may be combined in various other configurations. Different aspects and elements of the configurations may be combined in a similar manner. Also, technology evolves and, thus, many of the elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of example configurations (including implementations). However, configurations may be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configurations of the claims. Rather, the preceding description of the configurations will provide those skilled in the art with an enabling description for implementing described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
Also, configurations may be described as a process which is depicted as a flow diagram or block diagram. Although each may describe the operations as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of the operations may be rearranged. A process may have additional steps not included in the figure. Furthermore, examples of the methods may be implemented by hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or microcode, the program code or code segments to perform the necessary tasks may be stored in a non-transitory computer-readable medium such as a storage medium. Processors may perform the described tasks.
Having described several example configurations, various modifications, alternative constructions, and equivalents may be used without departing from the spirit of the disclosure. For example, the above elements may be components of a larger system, wherein other rules may take precedence over or otherwise modify the application of the invention. Also, a number of steps may be undertaken before, during, or after the above elements are considered.
This application claims priority to U.S. Provisional Application 61/914,856, filed Dec. 11, 2013, entitled “Methods and Systems for Home Automation,” the entire disclosure of which is hereby incorporated by reference for all purposes.
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| Number | Date | Country | |
|---|---|---|---|
| 20150160623 A1 | Jun 2015 | US |
| Number | Date | Country | |
|---|---|---|---|
| 61914856 | Dec 2013 | US |
