HEADSET ON EAR STATE DETECTION
First Claim
Patent Images
1. A signal processing device for on ear detection for a headset, the device comprising:
- a probe signal generator configured to generate a probe signal for acoustic playback from a speaker;
an input for receiving a microphone signal from a microphone, the microphone signal comprising at least a portion of the probe signal as received at the microphone; and
a processor configured to apply state-space estimation to the microphone signal to produce a state-space estimate of at least one parameter of the portion of the probe signal contained in the microphone signal, the processor further configured to process the state-space estimate of the at least one parameter to determine whether the headset is on ear.
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Accused Products
Abstract
A method and device for detecting whether a headset is on ear. A probe signal is generated for acoustic playback from a speaker. A microphone signal from a microphone is received, the microphone signal comprising at least a portion of the probe signal as received at the microphone. The microphone signal is passed to a state estimator, to produce an estimate of at least one parameter of the portion of the probe signal contained in the microphone signal. The estimate of the at least one parameter is processed to determine whether the headset is on ear.
17 Citations
52 Claims
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1. A signal processing device for on ear detection for a headset, the device comprising:
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a probe signal generator configured to generate a probe signal for acoustic playback from a speaker; an input for receiving a microphone signal from a microphone, the microphone signal comprising at least a portion of the probe signal as received at the microphone; and a processor configured to apply state-space estimation to the microphone signal to produce a state-space estimate of at least one parameter of the portion of the probe signal contained in the microphone signal, the processor further configured to process the state-space estimate of the at least one parameter to determine whether the headset is on ear. - View Dependent Claims (2, 3, 5, 9, 12, 14, 22, 23)
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4. (canceled)
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6-8. -8. (canceled)
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10-11. -11. (canceled)
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13. (canceled)
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15-21. -21. (canceled)
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24. (canceled)
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25. A method for on ear detection for a headset, the method comprising:
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generating a probe signal for acoustic playback from a speaker; receiving a microphone signal from a microphone, the microphone signal comprising at least a portion of the probe signal as received at the microphone; applying state-space estimation to the microphone signal to produce a state-space estimate of at least one parameter of the portion of the probe signal contained in the microphone signal, and determining from the state-space estimate of the at least one parameter whether the headset is on ear. - View Dependent Claims (26, 28, 29, 33, 36, 38, 46, 47)
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27. (canceled)
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30-32. -32. (canceled)
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34-35. -35. (canceled)
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37. (canceled)
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39-45. -45. (canceled)
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48. (canceled)
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49. A non-transitory computer readable medium for on ear detection for a headset, comprising instructions which, when executed by one or more processors, causes performance of the following:
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generating a probe signal for acoustic playback from a speaker; receiving a microphone signal from a microphone, the microphone signal comprising at least a portion of the probe signal as received at the microphone; applying state-space estimation to the microphone signal to produce a state-space estimate of at least one parameter of the portion of the probe signal contained in the microphone signal, and determining from the state-space estimate of the at least one parameter whether the headset is on ear.
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50. (canceled)
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51. A system for on ear detection for a headset, the system comprising a processor and a memory, the memory containing instructions executable by the processor and wherein the system is operative to:
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generate a probe signal for acoustic playback from a speaker; receive a microphone signal from a microphone, the microphone signal comprising at least a portion of the probe signal as received at the microphone; apply state-space estimation to the microphone signal to produce a state-space estimate of at least one parameter of the portion of the probe signal contained in the microphone signal, and determine from the state-space estimate of the at least one parameter whether the headset is on ear.
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52-56. -56. (canceled)
Specification