Hearing aid detection
First Claim
1. A portable audio device suitable for use with a hearing aid, comprising:
- a proximity sensor to detect a measure of distance of the device to an external object;
a magnetic field sensor to detect a measure of external magnetic field;
data processing circuitry coupled to the proximity sensor and the magnetic field sensor to compute a change in the distance to the external object and a change in the external magnetic field, over a same time interval, and then select between a normal audio mode of operation and a hearing aid compatible mode of operation, based on the computed changes in distance and magnetic field occurring over the same time interval;
audio processing circuitry having storage in which an audio application program is stored, and a processor to execute the audio application program so as to generate an audio output signal being one of a downlink communications signal for a call, a streaming audio signal from a remote server, or locally stored digital audio being played back, wherein the audio processing circuitry is to process the audio output signal according to the selected mode of operation; and
a speaker coupled to receive the processed audio output signal.
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Accused Products
Abstract
A hearing aid compatible portable electronic audio device is configured to automatically determine whether or not the device is being used by a hearing impaired user who is wearing a hearing aid, and select a mode of operation based on this determination. The device includes a proximity sensor and a magnetic field sensor. The proximity sensor is used to detect a change in distance of the device to the user'"'"'s ear. The magnetic field sensor is used to detect a change in magnetic field caused by the device moving relative to the hearing aid. The device selects between a normal audio mode of operation and a hearing aid compatible mode of operation based on both the change in detected distance and the change in detected magnetic field. Other embodiments are also described and claimed.
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Citations
23 Claims
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1. A portable audio device suitable for use with a hearing aid, comprising:
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a proximity sensor to detect a measure of distance of the device to an external object; a magnetic field sensor to detect a measure of external magnetic field; data processing circuitry coupled to the proximity sensor and the magnetic field sensor to compute a change in the distance to the external object and a change in the external magnetic field, over a same time interval, and then select between a normal audio mode of operation and a hearing aid compatible mode of operation, based on the computed changes in distance and magnetic field occurring over the same time interval; audio processing circuitry having storage in which an audio application program is stored, and a processor to execute the audio application program so as to generate an audio output signal being one of a downlink communications signal for a call, a streaming audio signal from a remote server, or locally stored digital audio being played back, wherein the audio processing circuitry is to process the audio output signal according to the selected mode of operation; and a speaker coupled to receive the processed audio output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method performed in a portable audio device, comprising:
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generating an audio output signal being one of a downlink communications signal for a call, a streaming audio signal from a remote server, or locally stored digital audio being played back, by a processor in the device executing an audio application program that is stored in the device; detecting a change in distance of the device to an external object, by processing a proximity sensor signal over a period of time; detecting a change in an external magnetic field, by processing a magnetic field sensor signal over the period of time; and selecting between a normal audio mode of operation and a hearing aid compatible mode of operation based on the detected change in distance and the detected change in magnetic field over the period of time, wherein the audio output signal is generated differently according to the selected mode of operation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An article of manufacture, comprising:
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a non-transitory machine-readable storage medium having stored therein instructions that program a processor, the processor being a component of a portable audio device, to a) receive magnetic field data from a magnetic field sensor and proximity data from a proximity sensor, b) compute a distance change from the proximity data and a magnetic field change from the magnetic field data over a same time interval, and c) select between a normal audio mode of operation and a hearing aid compatible (HAC) mode of operation based on the computed changes occurring over the same time interval, and wherein the storage medium has further stored therein an audio application program that programs the processor to generate an audio output signal being one of a downlink communications signal for a call, a streaming audio signal from a remote server, or locally stored digital audio being played back, wherein the audio output signal is generated according to the selected normal audio or hearing aid compatible mode of operation. - View Dependent Claims (20, 21, 22, 23)
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Specification