This application relates generally to the field of electronic devices and, in a specific example implementation, to wearable computers (e.g., a computerized wristwatch, computerized glasses, health monitoring devices etc.).
The rise in electronic and digital device technology has rapidly changed the way society interacts with media and consumes goods and services. Digital technology enables a variety of consumer devices to be available that are very flexible and relatively cheap. Specifically, modern electronic devices, such as smart phones and tablets, allow a user to have access to a variety of useful applications even when away from a traditional computer.
The present description is illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings, in which:
Like reference numerals refer to corresponding parts throughout the drawings.
Although the implementations have been described with reference to specific example implementations, it will be evident that various modifications and changes may be made to these implementations without departing from the broader spirit and scope of the description. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.
In various implementations, methods and systems for enabling a wearable computer (e.g., a smart watch or a computerized watch, wearable health monitoring device, wearable activity monitoring device or smart glasses) with extendable link capabilities are described. While the example embodiments are discussed with reference to a computerized watch system, other embodiments may be implemented with respect to any wearable computer devices, such as computerized glasses (e.g., glasses with an embedded computer system), computerized activity monitoring devices (e.g., an armband with a computer system, a belt with a computer system, a necklace with an embedded computer system, or shoes with embedded computer systems), and computerized health monitoring devices.
Taking the computerized watch system as an example of a wearable computer (e.g., a smart watch), a system is an electronic watch that has capabilities above the traditional watch functionalities. For example, a traditional watch includes one or more time based capabilities such as displaying the current time, running a timer, setting an alarm, and other similar and related capabilities.
In contrast, a computerized watch includes a variety of other capabilities. For example, a smart watch may include a touch screen as an input device. Using the touch screen, a user is able to input commands into the smart watch and to receive output from a variety of applications. Thus, in addition to the basic time applications used by a non-smart (or traditional) watch, a smart watch may run internet browser applications, search applications, media presentation applications, communication applications, productivity applications, game applications, word processing applications, or any other useful applications.
However, wearable computers, like many other wearable and personal electronic devices (smart phones, tablets, etc.) are constructed to be as small as possible. Indeed, wearable computer devices have even greater size constraints than other electronic devices because they are made to be worn by the user in a way that is as convenient and non-intrusive as possible. As such, space is very limited and components are made specifically to fit together with as small a footprint as possible. This results in many wearable devices that have parts that cannot easily be replaced to upgrade the capabilities of the device or devices that have a very narrow number of options to upgrade. However, this problem is addressed by a wearable device that includes one or more extendable components (e.g., replaceable smart links in the wrist band of a computerized watch).
The wearable device system, according to one example embodiment, includes a central component (e.g., the watch face) that is connected to one or more links that form an attachment accessory (e.g., a band of the watch), that enable of the essential component to be secured to the body of a person. The central component contains one or more microprocessors and memory. The memory stores programs that, when executed by the one or more processors, can perform any number of methods. Each link component connects to the face of the watch through a communication link.
In some example implementations, each replaceable component (e.g., a link component) of the attachment accessory includes electronic hardware and instructions to perform one or more capabilities. The central component is communicatively coupled to each link component of the attachment accessory through a communication method (e.g., a hardwired communication channel or bus, or a wireless communication channel) and can access the capabilities of each respective link. Furthermore, the central component and/or attachment accessory are configured such that new links can be added to the attachment accessory. As such, a user can change the capabilities of the wearable device system by changing the components that are attached to its attachment accessory. In this way, a user can customize the capabilities that the wearable device system has. Indeed, the wearable device user can change the capabilities of their wearable device system frequently to fit a specific need or use. For example, if a user wants to record statistics for a run, the user can swap in a link that counts steps or measures heart rate, and then remove it when the run is finished. In this way, the wearable device system with extendable components is much more flexible than other, non-extendable electronic devices.
In some example embodiments the central component communicates with each removable component through a communication connection system that enables the central component to communicate with all the removable components that are current attached to the central component. In some example embodiments the central component communicates directly with each removable component (e.g., the system is set up such that each component has a dedicated communication path). In other embodiments each removable component is able to pass along communications such that each component communicates with the central component by communicating with the component directly next to it and that communication is passed on until it reaches the central component. In some example embodiments power can also be passed from the central component to the removable components and also from one or more of the removable components to the central component (e.g., if one of the removable components has additional battery capacity.
In some example embodiments the central component enters a “pairing mode” when further components are added to the wearable device. When in a “pairing mode” the central component is put in a state in which it can be paired with additional link components. In some example embodiments the user interface prompts the user to affirmatively accept an additional link component is being paired with the central component.
In the case of a wearable device system, there are a variety of component types that can be attached to a central component (e.g., component 102 as seen in
In some implementations, the central component (e.g., component 102 as seen in
In addition, each removable component can be produced independently from the wearable computer system. To accomplish this, a standard communication interface and one or more standard form factors would be developed such that any party can produce a component for the wearable device. Such components would need to be configured to be physically included in a securing attachment to secure the wearable computing device to the body of a person, and including a communication interface to communicate with the wearable computing device.
The central component 102, is an electronic device that includes one or more microprocessors, at least one computer readable storage medium, and instructions stored on the at least one computer readable storage medium. The central component 102 also includes a display 104. In some implementations, the display 104 is also a touch screen that allows users to input commands to the central component 102 through a series of predefined touches and gestures. In other implementations, the display 104 is not a touch screen, and input is received from the user through other input means (e.g., buttons on the central component 102 or one of the extendable links or an external remote control of some kind.)
The central component 102 performs basic time keeping functions, including, but not limited to, recording, tracking, and displaying the current time. In some implementations, the central component 102 uses digital circuitry to monitor and display the current time with a high degree of precision. Any method for tracking and displaying time accurately may be used. In some implementations, the central component 102 also provides timer (e.g., stop watch) functionality and/or time based alert functionality (e.g., alerts the user when a predetermined amount of time has passed.)
The central component 102 also includes link communication applications. The link communication applications use ports (not pictured) on the central component 102 and corresponding connection ports 112-1 to 112-13 on each link component 110-1 to 110-7 that enable data to be passed between the central component 102 and each of the link components 110-1 to 110-7. Any acceptable technology can be used to form the communication links between the central component 102 and the various other components. In a further example embodiment, communications between a link and in the central component 102 may be performed wirelessly (e.g., using BLUETOOTH Low Energy (BLE), ANT/ANT+ or low-power Wi-Fi). In this case, a particular link may communicate directly with the central component 102, as well as with other links included within attachment accessory.
In some implementations, the communication links work such that data can originate with the central component 102 and have an associated target link component 110. Then the data is passed along from one link component 110 to the next link component 110 in the wristband until the target link component 110 is reached.
In some implementations, the central component 102 periodically determines whether any link components 110 have been added or removed. For example, the central component 102 sends a request to all components that instructs each component to identify itself to the central component 102. The central component 102 then matches the received identifications with an internal list of the currently attached link components 110.
If the central component 102 determines that the group of attached link components 110 has changed, the central component 102 then determines what link component(s) 110 have changed. The central component 102 determines if a component has been removed by comparing the current list of attached components against the list of components that responded to its identification request message. Any link component 110 that is on the current list of attached components but does not respond is determined to have been removed. The central component 102 then removes the removed link component 110 from the list of currently attached components.
If the central component 102 receives a component identification response message from a component link that is not included in the list of current components, the central component 102 determines that the link component 110 has been added to the smart wristband. Once a new link component 110 has been detected, the central component 102 determines the capabilities of the newly added link component 110. In some implementations, the central component 102 receives a component identification code from the newly added link component 110 in the component identification response message. The central component 102 then uses the component identification code to identify the capabilities of the component, either based on data already stored at the central component 102 (e.g., an internal table of all possible components) or using an external source to determine the capabilities associated with the component identification code (e.g., by contacting a third party server over a communication network). The central component 102 then stores the determined capabilities in a list of current capabilities.
In other implementations, a new link component 110 sends a description of its capabilities to the central component 102 in response to the component identification request message. The central component 102 then adds the new link component 110 to the list of current components and stores the newly added capabilities in the list of current capabilities.
In some implementations, link components 110 automatically notify the central component 102 when they are added to or removed from the watch link chain. In this way, the central component 102 doesn't have to periodically poll the components to determine if another link has been added or a link has been removed from the watch link chain. When the central component 102 receives an automatic notification from a component, the central component 102 then updates both the list of current components and the list of current capabilities.
Each extendable component link 110-1 to 110-7 includes one or more connection ports 112-1 to 112-13 that allow it to connect with the rest of the link band and the central component 102, as well as to send and receive data from the other watch components.
The watch system also includes space 120 to add additional components.
Memory 212 includes high-speed random access memory, such as DRAM, SRAM, DDR RAM or other random access solid state memory devices, and may include non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other non-volatile solid state storage devices. Memory 212 may optionally include one or more storage devices located remotely from the CPU(s) 202. Memory 212, or alternately the non-volatile memory device(s) within memory 212, comprises a non-transitory computer readable storage medium.
In some embodiments, memory 212 or the computer readable storage medium of memory 212 stores the following programs, modules and data structures, or a subset thereof:
In some implementations, a link component record 302 stores a unique component ID 304 for the link component, a component name 306, component specifications 308 of the link component, a list of one or more component capabilities 310, and component settings 312.
In some implementations, the component name 306 is a text name of the link component and is used to identify the component to the user of the smart watch system. For example, the component name 306 includes a branded identifier or a commonly used name for a component, rather than a technical description of the link component. The component specifications 308 include any specifications needed to effectively use the capabilities provided by the link component. For example, the component specifications include the power needed by the component, the various services provided by the link component and the method for accessing them (e.g., an API), and other important information.
The list of one or more component capabilities 310 includes one or more capability records 322-1 to 322-Q (e.g., functions or services provided by the link) that are provided by the link component. For example, a link component provides GPS positions and the list of component capabilities 310 includes GPS positioning as one of the capabilities provided. In another example, the link component provides additional purchasing power and extra memory, and the list of component capabilities 310 includes both of the capabilities. The list of component capabilities 310 includes one or more capability records 322-1 to 322-Q. Each capability record includes the name of the capability and a description of what service or function it provides.
In some implementations, a link component record 302 includes component settings 312 for the link component. In some implementations, the component settings 312 include settings and preferences for the user. For example, if a link has wireless connection capacities, the component settings 312 include preferred wireless protocol, Wi-Fi networks and the accompanied user names and passwords. Similarly, a GPS component record includes past GPS locations or common routes associated with the user.
The method is performed at a smart watch system including one or more processors and memory storing one or more programs for execution by the one or more processors. The central component (e.g., central component 102 as seen in
The central component (e.g., central component 102 as seen in
In other implementations, the components themselves send a message to the central component (e.g., component 102 as seen in
If a change is not detected, the central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
The user interface 500 also includes a section of the screen 502 that acts as a display 506 for displaying additional information to a user. The display 506 also includes one or more tabs or buttons 508, 510, 512, and 514 for navigating through a user interface. For example, if the user selects the “Home” button 508, the display 506 will take a user back to a generic starting screen that may include a variety of app icons or menus for accessing applications on the smart watch system. In another example, when the user selects the “Social” tab 510 the display 506 links to one or more social services (e.g., Twitter, Facebook, chat programs, etc.). In other examples, the “web” tab 512 causes a web browser to be displayed in the display 506 and the “E-mail” button 514 causes an e-mail program to be displayed.
In some implementations, the user interface also displays symbols that represent at least some of the current capabilities of the link components currently connected to the central component (e.g., component 102 as seen in
Also, similarly to
Continuing from the example in FIG. SA, the user interface 500 in
Also, similarly to FIG. SA, this example user interface has a section of the screen 502 that acts as a display 506, one or more tabs or buttons 508, 510, 512, and 514, and one or more icons or symbols 516, 518, 526, 522, and 524 showing the current capabilities of the smart watch system.
Continuing from the example in
Also, similarly to
Continuing from the example in
In some implementations, the method is performed at a central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
In some implementations, the central component (e.g., component 102 as seen in
In some implementations, the central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
In some implementations, the central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
In some implementations, the method is performed at a smart watch system that includes one or more processors, one or more removable link components, and memory storing one or more programs for execution by the one or more processors.
The central component (e.g., component 102 as seen in
In some implementations, the central component (e.g., component 102 as seen in
The central component (e.g., component 102 as seen in
After the list of current link components has been updated, the central component (e.g., component 102 as seen in
In some implementations, link components are added from a list that includes, but is not limited to, an additional memory capacity component, an additional battery capacity component, an additional processing capacity component, a step counter, a fitness tracker, a GPS tracker, a compass component, a blood glucose monitor, a camera component, a voice recording component, an RFID tag component, a Bluetooth component, a proximity sensor component, an infrared sensor component, a remote control component, an environment measuring component, a camera, an audio recording device, a touch input device, or a wireless communication component.
The operating system 802 may manage hardware resources and provide common services. The operating system 802 may include, for example, a kernel 820, services 822, and drivers 824. The kernel 820 may act as an abstraction layer between the hardware and the other software layers. For example, the kernel 820 may be responsible for memory management, processor management (e.g., scheduling), component management, networking, security settings, and so on. The services 822 may provide other common services for the other software layers. The drivers 824 may be responsible for controlling and/or interfacing with the underlying hardware. For instance, the drivers 824 may include display drivers, camera drivers, Bluetooth® drivers, flash memory drivers, serial communication drivers (e.g., Universal Serial Bus (USB) drivers), Wi-Fi® drivers, audio drivers, power management drivers, and so forth.
The libraries 804 may provide a low-level common infrastructure that may be utilized by the applications 808. The libraries 804 may include system libraries (e.g., C standard library) that may provide functions such as memory allocation functions, string manipulation functions, mathematic functions, and the like. In addition, the libraries 804 may include API libraries 832 such as media libraries (e.g., libraries to support presentation and manipulation of various media format such as MPREG4, H.264, MP3, AAC, AMR, JPG, PNG), graphics libraries (e.g., an OpenGL framework that may be used to render 2D and 3D in a graphic content on a display), database libraries (e.g., SQLite that may provide various relational database functions), web libraries (e.g., WebKit that may provide web browsing functionality), and the like. The libraries 804 may also include a wide variety of other libraries 834 to provide many other APIs to the applications 808.
The frameworks 806 may provide a high-level common infrastructure that may be utilized by the applications 808. For example, the frameworks 806 may provide various graphic user interface (GUI) functions, high-level resource management, high-level location services, and so forth. The frameworks 806 may provide a broad spectrum of other APIs that may be utilized by the applications 808, some of which may be specific to a particular operating system or platform.
The applications 808 include a home application 850, a contacts application 852, a browser application 854, a book reader application 856, a location application 858, a media application 860, a messaging application 862, a game application 864, and a broad assortment of other applications such as third party application 866. In a specific example, the third party application 866 (e.g., an application developed using the Android™ or iOS™ software development kit (SDK) by an entity other than the vendor of the particular platform) may be mobile software running on a mobile operating system such as iOS™, Android™, Windows® Phone, or other mobile operating systems. In this example, the third party application 866 may invoke the API calls 810 provided by the mobile operating system 802 to facilitate functionality described herein.
The machine 900 may include processors 910, memory 930, and I/O components 950, which may be configured to communicate with each other via a bus 905. In an example embodiment, the processors 910 (e.g., a Central Processing Unit (CPU), a Reduced Instruction Set Computing (RISC) processor, a Complex Instruction Set Computing (CISC) processor, a Graphics Processing Unit (GPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Radio-Frequency Integrated Circuit (RFIC), another processor, or any suitable combination thereof) may include, for example, processor 915 and processor 920 that may execute instructions 925. The term “processor” is intended to include multi-core processor that may comprise two or more independent processors (also referred to as “cores”) that may execute instructions contemporaneously. Although
The memory 930 may include a main memory 935, a static memory 940, and a storage unit 945 accessible to the processors 910 via the bus 905. The storage unit 945 may include a machine-readable medium 947 on which is stored the instructions 925 embodying any one or more of the methodologies or functions described herein. The instructions 925 may also reside, completely or at least partially, within the main memory 935, within the static memory 940, within at least one of the processors 910 (e.g., within the processor's cache memory), or any suitable combination thereof, during execution thereof by the machine 900. Accordingly, the main memory 935, static memory 940, and the processors 910 may be considered as machine-readable media 947.
As used herein, the term “memory” refers to a machine-readable medium 947 able to store data temporarily or permanently and may be taken to include, but not be limited to, random-access memory (RAM), read-only memory (ROM), buffer memory, flash memory, and cache memory. While the machine-readable medium 947 is shown in an example embodiment to be a single medium, the term “machine-readable medium” should be taken to include a single medium or multiple media (e.g., a centralized or distributed database, or associated caches and servers) able to store instructions 925. The term “machine-readable medium” shall also be taken to include any medium, or combination of multiple media, that is capable of storing instructions (e.g., instructions 925) for execution by a machine (e.g., machine 900), such that the instructions, when executed by one or more processors of the machine 900 (e.g., processors 910), cause the machine 900 to perform any one or more of the methodologies described herein. Accordingly, a “machine-readable medium” refers to a single storage apparatus or device, as well as “cloud-based” storage systems or storage networks that include multiple storage apparatus or devices. The term “machine-readable medium” shall accordingly be taken to include, but not be limited to, one or more data repositories in the form of a solid-state memory (e.g., flash memory), an optical medium, a magnetic medium, other non-volatile memory (e.g., Erasable Programmable Read-Only Memory (EPROM)), or any suitable combination thereof. The term “machine-readable medium” specifically excludes non-statutory signals per se.
The I/O components 950 may include a wide variety of components to receive input, provide and/or produce output, transmit information, exchange information, capture measurements, and so on. It will be appreciated that the !/O components 950 may include many other components that are not shown in
In further example embodiments, the I/O components 950 may include biometric components 956, motion components 958, environmental components 960, and/or position components 962 among a wide array of other components. For example, the biometric components 956 may include components to detect expressions (e.g., hand expressions, facial expressions, vocal expressions, body gestures, or eye tracking), measure biosignals (e.g., blood pressure, heart rate, body temperature, perspiration, or brain waves), identify a person (e.g., voice identification, retinal identification, facial identification, finger print identification, or electroencephalogram based identification), and the like. The motion components 958 may include acceleration sensor components (e.g., accelerometer), gravitation sensor components, rotation sensor components (e.g., gyroscope), and so forth. The environmental components 960 may include, for example, illumination sensor components (e.g., photometer), temperature sensor components (e.g., one or more thermometer that detect ambient temperature), humidity sensor components, pressure sensor components (e.g., barometer), acoustic sensor components (e.g., one or more microphones that detect background noise), proximity sensor components (e.g., infrared sensors that detect nearby objects), and/or other components that may provide indications, measurements, and/or signals corresponding to a surrounding physical environment. The position components 962 may include location sensor components (e.g., a Global Position System (GPS) receiver component), altitude sensor components (e.g., altimeters and/or barometers that detect air pressure from which altitude may be derived), orientation sensor components (e.g., magnetometers), and the like.
Communication may be implemented using a wide variety of technologies. The I/O components 950 may include communication components 964 operable to couple the machine 900 to a network 980 and/or devices 970 via coupling 982 and coupling 972 respectively. For example, the communication components 964 may include a network interface component or other suitable device to interface with the network 980. In further examples, communication components 964 may include wired communication components, wireless communication components, cellular communication components, Near Field Communication (NFC) components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components to provide communication via other modalities. The devices 970 may be another machine and/or any of a wide variety of peripheral devices (e.g., a peripheral device couple via a Universal Serial Bus (USB)).
Moreover, the communication components 964 may detect identifiers and/or include components operable to detect identifiers. For example, the communication components 964 may include Radio Frequency Identification (RFID) tag reader components, NFC smart tag detection components, optical reader components (e.g., an optical sensor to detect one-dimensional bar codes such as Universal Product Code (UPC) bar code, multi-dimensional bar codes such as Quick Response (QR) code, Aztec code, Data Matrix, Dataglyph, MaxiCode, PDF48, Ultra Code, UCC RSS-2D bar code, and other optical codes), acoustic detection components (e.g., microphones to identify tagged audio signals), and so on. In additional, a variety of information may be derived via the communication components 964 such as location via Internet Protocol (IP) geo-location, location via Wi-Fi® signal triangulation, location via detecting a NFC beacon signal that may indicate a particular location, and so forth.
In various example embodiments, one or more portions of the network 980 may be an ad hoc network, an intranet, an extranet, a virtual private network (VPN), a local area network (LAN), a wireless LAN (WLAN), a wide area network (WAN), a wireless WAN (WWAN), a metropolitan area network (MAN), the Internet, a portion of the Internet, a portion of the Public Switched Telephone Network (PSTN), a plain old telephone service (POTS) network, a cellular telephone network, a wireless network, a Wi-Fi® network, another type of network, or a combination of two or more such networks. For example, the network 980 or a portion of the network 980 may include a wireless or cellular network and the coupling 982 may be a Code Division Multiple Access (CDMA) connection, a Global System for Mobile communications (GSM) connection, or other type of cellular or wireless coupling. In this example, the coupling 982 may implement any of a variety of types of data transfer technology, such as Single Carrier Radio Transmission Technology (1xRTT), Evolution-Data Optimized (EVDO) technology, General Packet Radio Service (GPRS) technology, Enhanced Data rates for GSM Evolution (EDGE) technology, third Generation Partnership Project (3GPP) including 3G, fourth generation wireless (4G) networks. Universal Mobile Telecommunications System (UMTS), High Speed Packet Access (HSPA), Worldwide Interoperability for Microwave Access (WiMAX), Long Term Evolution (LTE) standard, others defined by various standard setting organizations, other long range protocols, or other data transfer technology.
The instructions 925 may be transmitted and/or received over the network 980 using a transmission medium via a network interface device (e.g., a network interface component included in the communication components 964) and utilizing any one of a number of well-known transfer protocols (e.g., hypertext transfer protocol (HTTP)). Similarly, the instructions 925 may be transmitted and/or received using a transmission medium via the coupling 972 (e.g., a peer-to-peer coupling) to devices 970. The term “transmission medium” shall be taken to include any intangible medium that is capable of storing, encoding, or carrying instructions 925 for execution by the machine 900, and includes digital or analog communications signals or other intangible medium to facilitate communication of such software.
Furthermore, the machine-readable medium 947 is non-transitory (in other words, not having any transitory signals) in that it does not embody a propagating signal. However, labeling the machine-readable medium 947 as “non-transitory” should not be construed to mean that the medium is incapable of movement; the medium should be considered as being transportable from one physical location to another. Additionally, since the machine-readable medium 947 is tangible, the medium may be considered to be a machine-readable device.
Throughout this specification, plural instances may implement components, operations, or structures described as a single instance. Although individual operations of one or more methods are illustrated and described as separate operations, one or more of the individual operations may be performed concurrently, and nothing requires that the operations be performed in the order illustrated. Structures and functionality presented as separate components in example configurations may be implemented as a combined structure or component. Similarly, structures and functionality presented as a single component may be implemented as separate components. These and other variations, modifications, additions, and improvements fall within the scope of the subject matter herein.
Although an overview of the inventive subject matter has been described with reference to specific example embodiments, various modifications and changes may be made to these embodiments without departing from the broader scope of embodiments of the present disclosure. Such embodiments of the inventive subject matter may be referred to herein, individually or collectively, by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any single disclosure or inventive concept if more than one is, in fact, disclosed.
The embodiments illustrated herein are described in sufficient detail to enable those skilled in the art to practice the teachings disclosed. Other embodiments may be used and derived therefrom, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. The Detailed Description, therefore, is not to be taken in a limiting sense, and the scope of various embodiments is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled.
As used herein, the term “or” may be construed in either an inclusive or exclusive sense. Moreover, plural instances may be provided for resources, operations, or structures described herein as a single instance. Additionally, boundaries between various resources, operations, modules, engines, and data stores are somewhat arbitrary, and particular operations are illustrated in a context of specific illustrative configurations. Other allocations of functionality are envisioned and may fall within a scope of various embodiments of the present disclosure. In general, structures and functionality presented as separate resources in the example configurations may be implemented as a combined structure or resource. Similarly, structures and functionality presented as a single resource may be implemented as separate resources. These and other variations, modifications, additions, and improvements fall within a scope of embodiments of the present disclosure as represented by the appended claims. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.