MULTIPLE MICROPHONE SWITCHING AND CONFIGURATION
First Claim
1. An apparatus comprising:
- a communications device housing having integrated therein;
an uplink channel processor to provide an uplink voice signal for a call by enhancing a voice dominant input signal using an echo or noise dominant input signal;
a downlink channel processor to receive a downlink voice signal for the call;
a plurality of microphones;
a switch to couple (a) a microphone signal, that is selectable from each of the plurality of microphones, into a voice dominant input of the uplink channel processor, and (b) a further microphone signal, selectable from each of the plurality of microphones, into a noise and/or echo dominant input of the uplink channel processor; and
a selector to dynamically control the switch during the call to change the coupling of the microphone signals.
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Accused Products
Abstract
A mobile communications device contains at least two microphones. One microphone is designated by a selector to provide a voice dominant signal and another microphone is designated to provide a noise or echo dominant signal, for a call or a recording. The selector communicates the designations to a switch that routes the selected microphone signals to the inputs of a processor for voice signal enhancement. The selected voice dominant signal is then enhanced by suppressing ambient noise or canceling echo therein, based on the selected noise or echo dominant signal. The designation of microphones may change at any instant during the call or recording depending on various factors, e.g. based on the quality of the microphone signals. Other embodiments are also described.
395 Citations
20 Claims
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1. An apparatus comprising:
a communications device housing having integrated therein; an uplink channel processor to provide an uplink voice signal for a call by enhancing a voice dominant input signal using an echo or noise dominant input signal; a downlink channel processor to receive a downlink voice signal for the call; a plurality of microphones; a switch to couple (a) a microphone signal, that is selectable from each of the plurality of microphones, into a voice dominant input of the uplink channel processor, and (b) a further microphone signal, selectable from each of the plurality of microphones, into a noise and/or echo dominant input of the uplink channel processor; and a selector to dynamically control the switch during the call to change the coupling of the microphone signals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A machine-implemented method comprising the following operations performed during a recording session or a call:
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analyzing signals from a plurality of microphones; switching a first coupling of a microphone signal between the plurality of microphones and a voice dominant input based on the analysis of the signals from the plurality of microphones; switching a second coupling of a further microphone signal between the plurality of microphones and a noise or echo dominant input based on the analysis of the signals from the plurality of microphones; and enhancing the microphone signal that is coupled to voice dominant input, by suppressing ambient noise and/or canceling echo based on the microphone signal that is coupled to the noise suppression or echo cancellation dominant input. - View Dependent Claims (8, 9)
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10. A telephony device comprising:
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a housing having a plurality of microphones; a selector to dynamically select, during a sound recording or sound communication, one microphone of the plurality of microphones for a voice dominant input and another microphone of the plurality of microphones for a noise or echo dominant input; a switch coupled to the selector and to the plurality of microphones, to route signals from the selected microphones to said voice dominant and noise or echo dominant inputs; and a processing component to enhance the signal at the voice dominant input based on the signal at the noise or echo dominant input. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification