1. Technical Field
The exemplary and non-limiting embodiments relate generally to a headset and, more particularly, to a control system in a headset.
2. Brief Description of Prior Developments
Headsets, such as wireless headsets for example, are a class of accessory devices widely used with various portable electronic devices. Wireless headsets enable the user to access audio features of a portable device while the device itself may be stowed away and located at a distance from the user. Example applications of wireless headsets include having a telephone conversation while being engaged in another activity such as driving a car, or listening to music while the device is stowed in a bag or a pocket.
Wireless headset units may comprise audio transducers for capturing and reproducing sound waves, and they are configured for communication with other devices by various methods, such as short-range radio techniques, for example. Various headset devices such as BLUETOOTH headsets are popular accessory products that are designed to improve usability of mobile phones. Wireless headset units may also comprise input controls for controlling various features of the unit, such as one or more buttons for switching the unit ON or OFF, and receiving or ending a call. The units may be monaural or stereophonic, and they may be designed to be worn by the user on the ear, over the head, or in other suitable ways. As consumers demand increased functionality from electronic devices, there is a need to provide improved headset units which allow for an improved user experience by providing for ease of use when performing device actions/operations such as powering ON, connecting to a paired device, and accepting a call for example.
The following summary is merely intended to be exemplary. The summary is not intended to limit the scope of the claims.
In accordance with one aspect, an apparatus is provided including a housing configured to support the apparatus on a head of a user; a controller; a sound transducer; and a proximity detector. The proximity detector is connected to the controller. The controller is configured to perform a predetermined function based upon a signal from the proximity detector.
In accordance with another aspect, a method comprises connecting a sound transducer to a controller; connecting a proximity detector to the controller; and assembling the controller, the sound transducer and the proximity detector with a housing to form an apparatus configured to be supported on a head of a user.
In accordance with another aspect, a method comprises sending an electrical signal from a proximity detector to a controller, where the proximity detector is on an apparatus configured to be supported on a head of a user, and where the apparatus comprises a sound transducer; and performing at least one predetermined function by a controller of the apparatus based upon the signal from the proximity detector, where the predetermined function comprises turning the apparatus ON or OFF.
In accordance with another aspect, A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising determining receipt of a signal by a controller of an apparatus from a proximity detector of the apparatus; and turning the apparatus ON or OFF by the controller based upon receipt of the signal by the controller, where the proximity detector and the controller are connected to a housing of the apparatus configured to be supported on a head of a user, and where the controller is configured to at least partially control a sound transducer of the apparatus.
The foregoing aspects and other features are explained in the following description, taken in connection with the accompanying drawings, wherein:
Referring to
The device 14 is a mobile telephone in this example. The device 14 is able to provide telephone service to a mobile telephone network. The device also has a short range wireless communication function, such as BLUETOOTH for example, to establish the radio frequency link 12 with the apparatus 10. However, in an alternate embodiment any suitable device could be provided for the device 14, such as a music player, PDA, laptop computer, video camera, etc.
The apparatus 10 is a wireless headset which is adapted to be supportably mounted at a person's ear. The apparatus 10 has a housing 16, electronics or electrical components 18 in the housing, and a battery 20 in the housing. The electrical components 18 include a speaker 22, a transmitter and a receiver. The transmitter and receiver can communicate with the device 14 via the link 12. The electronics could also comprise a microphone. Thus, the apparatus 10 can be used with the device 14 for hands-free use of the device 14, such as when driving a vehicle for example.
The housing 16 includes a portion 32 which is sized and shaped to be inserted in a person's ear. The speaker 22 is located in this portion 32. Referring also to
The portion 32 of the housing in this example is a concha portion. As seen in
Referring also to
Referring also to
An example of how the apparatus could be used is explained below. The user could turn the switch 40 to a sleep mode. This helps to conserve power of the battery 20 by not continuously having the link 12. The user can leave the apparatus 10 out of the ear, such as on an office desk for example. When the device 14 indicates an incoming call (such as a ring tone or vibrating), the user can merely place the portion 32 in the ear. The proximity detector 55 automatically senses the apparatus being placed in the ear and sends a signal to the controller which turns ON the apparatus 10. The apparatus 10 can automatically establish the link 12 with the device 14, and perhaps also send a signal to the device 14 to answer the incoming call.
In addition to the functions described above, the apparatus could be configured to perform function(s) when the proximity detector 55 indicates that the apparatus 10 has been removed from a user's ear. When the proximity detector determines that the apparatus 10 has been removed from the user's ear, the sensor 54 could send a signal to the controller 50. The apparatus could be configured to put the apparatus in a sleep mode when that signal is received, for example; terminating the link 12 and thereby conserving battery power of the battery 20. An alternative or additional function could be for the apparatus 10 to send a signal to the device 14 to end a telephone call. Thus, the user does not need to press a button on the apparatus 10 to end a telephone call. The user could merely remove the apparatus 10 from the user's ear in order to have the apparatus 10 instruct the device 14 to end the telephone call.
Referring also to
With a capacitive sensor, good and reliable detection of dielectric materials can be provided. With a capacitive sensor, wearing, corrosion or solvents do not ruin reliability. With a capacitive sensor, no changes are needed to mechanics except for the flex 56 (or the LDS as described below). With a capacitive sensor, there are no changes to audio response.
Referring also to
The E-field sensor electrodes can be located under the headset cover part 70. E-field sensor technology can provide good and reliable detection of dielectric material. With an E-Field sensor, wearing, corrosion or solvents do not ruin reliability. With an E-Field sensor, there are no changes needed to mechanics except for the flex 56 (or LDS described below). With an E-Field sensor, there are no changes to audio response
Referring also to
Capacitive and E-field detection methods are similar, and can use similar/same types of ear rubbers. Various methods of proximity sensing exists such as loading, transmission or absorption modes. These methods can be used to detect anything which is conductive or having dielectric properties. Thus, these methods can be used to detect a human body. Capacitive sensing methodology is a technology for detecting proximity, position, etc., based on capacitive coupling effects (loading mode). Even more reliable measurements can be based on E-field; a non-ground based methodology (transmission mode operation).
Absorption methodology could be used for same functionality as loading and transmission methodologies (such as capacitive sensing and E-Field sensing). Absorption basically means that there is a transmitter in the apparatus, which is tuned to radiate in a certain frequency. Absorption material close to it will either shift frequency or cause loss to efficiency/transmit power sensitivity. The absorption material in this case would be end user's ear/head. In principle a manufacturer could even use an existing BLUETOOTH antenna and transceiver for this methodology. This could be one example of absorption method.
Referring also to
In addition to use of proximity detection, other control methodology features could be provide in the headset including motion sensing (e.g. detecting when product is left on table or picked up), temperature (similar to on-ear detection, detecting temperature difference compared to ambient temperature), and optical sensing (e.g. detecting when product is left on table or picked up or on ear).
Unlike a conventional headset (ear mounted) which uses a clip/cradle to plug the headset into, use of the headphone/headset user experience is no longer limited to carrying a cradle with the user all the time. Without the need for a cradle, the user experience is not ruined because there is no risk that the cradle of the system is lost (the system does not need use a cradle). Without a cradle, costs are reduced and the size of the overall system is reduced. Unlike a cradle/headset system which has the headphone/headset powered ON and consumes power when it is not in the cradle or otherwise turned OFF by pressing button, the headset examples described above can automatically turn OFF when the headset is simply removed from the user's ear/head. Features of the example embodiments described above, can also be used with a clip/cradle such as described in U.S. patent application Ser. No. 13/048,083 filed Mar. 15, 2011 which is hereby incorporated by reference in its entirety. Features described herein could also be combined with features described in U.S. patent application Ser. No. 13/014,007 filed Jan. 26, 2011 which is also hereby incorporated by reference in its entirety.
Example embodiments can use automatic proximity detection methods to detect when a headphone/headset is on a user's ear or head. This detection can be used to turn the apparatus 10 ON and/or OFF, and/or another function or operation, such as send a signal to the device 14 to perform some other operation for example. Features can be used such that the headset can turn ON automatically when the headset is placed on the ear or head. Features can be used such that the headset can turn OFF automatically when the headset is removed from the ear or head. This proximity to the use's skin detection, or contact with the user's skin detection, can be used to activate a functionality, such as automatically answer an incoming call when the headphone/headset is put to the user's ear or head. For example, the headphone/headset 10 can automatically switch ON, connect to a user's telephone device 14 via link 12, and have the device 14 answer the incoming call. All this may be accomplished by merely placing the apparatus 10 in the user's ear during an incoming call to the device 14.
If the headphone/headset is already in the user's ear when a call is incoming to the device 14, the user can press the answer/end key 17 (see
To end a call (if the apparatus 10 is already in the user's ear), the user could merely remove the headset 10 from the user's ear, or press the answer/end key 17 while the headphone/headset is on the ear.
As another example, the apparatus could be programmed to allow the apparatus be to removed from the user's ear without signaling to the device 14 to end an ongoing call. For example, (while the apparatus 10 is in the user's ear during a telephone call) the user could press the answer/end key 17 one very short time to have the device 14 place the call On Hold. The user could then remove the apparatus 10 from the ear without the device 14 performing an On Hook end to the call. When the user places the apparatus 10 back in the ear, the apparatus 10 could send a signal to the device 14 to automatically take the call Off Hold, and allow the user to continue the telephone conversation.
In one type of embodiment, hardware and/or software could be configured to disregard momentary indications from the proximity detector of the proximity being too far away from the user (to thereby compensate for inaccurate proximity determinations). For example, when a signal is sent from the proximity detector to the controller 50 indicating that the apparatus 10 has been removed from the ear 26, the method/software could use a clock to wait until a predetermined amount of time elapsed before turning the apparatus 10 OFF and/or sending a signal to the device 14 to hang-up; such as 5 seconds for example. This could help to prevent an accidental ON Hook or hang-up from occurring if the apparatus 10 accidentally falls out of the user's ear.
In one type of example embodiment, there is no need for a clip/cradle or any user activated mechanism (button, sliding key, pop up button, clip with earpiece detection etc.) The examples can provide excellent ergonomics, usability and wearability to all users. Example embodiments are particularly well suited for earphones; especially in-ear and intra concha type.
Features described herein could also be applicable for wired headsets. The detection block could be inside the wired headset or the controlling terminal/player device. An example of this is shown in
Different implementations can be used to make a part act as a sensor or part of a sensor system including a speaker cover or part of it with a metallic coating (conductive); an aluminum part in a speaker cover; a Laser Direct Structuring (LDS) metal coating; a full metal cover (separated from main body). Also a flex can be used for a sensor. Different ear rubber implementations can be used to make a part act as part of the sensor system such as, for example, a metal ring 2-shot molded part; a 2-shot molded plastic to plastic inner part of dielectric material (soft or hard material); or conductive rubber.
An example embodiment can be provided in an apparatus 10 comprising a housing 16 configured to support the apparatus on a head of a user; a controller 50 connected to the housing; a sound transducer 22 and/or 23 connected to the controller; and a proximity detector 54, 30 connected to the controller, where the controller is configured to perform a predetermined function based upon a signal from the proximity detector.
The housing 16 may comprise an earbud portion 32′ configured to be at least partially inserted in an ear canal 28 of the user or a concha portion 32 configured to be inserted into a concha part 24 of an ear of the user proximate the ear canal. The proximity detector may comprise a capacitive sensor 54. The proximity detector may comprise an E-field sensor 54′. When the signal indicates the proximity detector being located in close proximity to the head of the user, the predetermined function may comprise the controller 50 turning the apparatus ON in order to use the sound transducer 22 and/or 23. The predetermined function may comprises sending a signal from the apparatus 10 to a telephone 14 to answer an incoming telephone call. When the signal indicates the proximity detector being removed from close proximity to the head of the user, the predetermined function may comprises the controller turning the apparatus 10 OFF in order to not use the sound transducer. The predetermined function may comprise sending a signal from the apparatus 10 to a telephone 14 to end a telephone call. The predetermined function may comprise sending a signal from the apparatus 10 to a telephone 14 to not answer an incoming telephone call. The predetermined function could comprise sending a signal to a telephone to allow the telephone to continue an ongoing telephone call with the apparatus 10 turning OFF. Thus, the user can continue an ongoing call merely using the telephone 14 and without further use of the apparatus 10 by merely removing the apparatus 10 from the user's ear. Whether or not the telephone hangs-up the call when the user takes the apparatus 10 out of his or her ear may be user selectable via the apparatus 10 and/or the device 14. The proximity detector may comprise an Ultra Low Power Proximity (ULPP) chip 66.
An example method may comprise providing a sound transducer connected to a controller; providing a proximity detector connected to the controller; and the controller, the sound transducer and the proximity detector being configured with a housing to form an apparatus configured to be supported on a head of a user.
The housing may be formed with an earbud portion configured to be at least partially inserted in an ear canal of the user or a concha portion configured to be inserted into a concha part of an ear of the user proximate the ear canal. The proximity detector may comprise a capacitive sensor or an E-field sensor assembled with the housing to sense when the apparatus is placed on the head of the user. The proximity detector may be assembled with the housing to sense when the apparatus is taken off the head of the user. The proximity detector may comprise an Ultra Low Power Proximity (ULPP) chip which is connected to the controller.
An example method may comprise sending an electrical signal from a proximity detector to a controller, where the proximity detector is on an apparatus configured to be supported on a head of a user, and where the apparatus comprises a sound transducer; and performing at least one predetermined function by a controller of the apparatus based upon the signal from the proximity detector, where the predetermined function comprises turning the apparatus ON or OFF.
The predetermined function may comprise sending a signal from the apparatus to a telephone to answer an incoming call. The predetermined function may comprise sending a signal from the apparatus to a telephone to not answer an incoming call. The predetermined function may comprise sending a signal from the apparatus to a telephone to end a telephone call.
In one example embodiment a non-transitory program storage device may be provided, such as memory 52 or a CD-ROM or a flash drive for example, readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising determining receipt of a signal by a controller of an apparatus from a proximity detector of the apparatus; and turning the apparatus ON or OFF by the controller based upon receipt of the signal by the controller, where the proximity detector and the controller are connected to a housing of the apparatus configured to be supported on a head of a user, and where the controller is configured to at least partially control a sound transducer of the apparatus.
Besides the elements noted above which could be used as conductive members to detect proximity, other elements could be alternatively or additionally used. For example, referring also to
It should be understood that the foregoing description is only illustrative. Various alternatives and modifications can be devised by those skilled in the art. For example, features recited in the various dependent claims could be combined with each other in any suitable combination(s). In addition, features from different embodiments described above could be selectively combined into a new embodiment. Accordingly, the description is intended to embrace all such alternatives, modifications and variances which fall within the scope of the appended claims.