Multiple microphone switching and configuration

A microphone and microphone signal technology, which is applied to interconnection devices, transducer circuits, instruments, etc., can solve the problems of not being able to hear voice signals and interfering with voice signals of near-end users

Active Publication Date: 2011-08-24
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if ambient noise in the environment or physical obstruction of the microphone interferes with the voice signa

Method used

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  • Multiple microphone switching and configuration
  • Multiple microphone switching and configuration
  • Multiple microphone switching and configuration

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Embodiment Construction

[0011] In this section, some preferred embodiments of the invention are described with reference to the accompanying drawings. When the shapes, relative positions, and other aspects of components described in the embodiments are not clearly defined, the scope of the present invention is not limited to the illustrated components, which are meant for illustrative purposes only.

[0012] figure 1 is a block diagram of an exemplary embodiment of a portable handheld device with multiple microphones for enhancing voice dominant signals. The device may be an iPhone manufactured by Apple Inc., Cupertino, California. TM device. Alternatively, it may be other portable handheld multifunctional mobile electronic device or a smart phone with audio recording and / or voice telephony capabilities. The device can have a TM A fixed, single-piece housing for the device, or it may have a removable multi-piece housing, such as a clamshell design or sliding keyboard. The device may also have a ...

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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.

Description

technical field [0001] Embodiments of the invention generally relate to mobile devices having multiple microphones for enhancing audio signals. Background technique [0002] A portable, hand-held electronic device that functions as a telephone, such as the iPhone manufactured by Apple Inc. TM A multifunctional mobile device having a built-in or integrated microphone located at the end of the bottom surface of the device near the user's mouth when the device is used by the user as a telephone handset. This microphone picks up the near-end user's voice signal, which is then transmitted to the other party or parties to the call. The microphone can also be used to record audio signals for other device features, such as for sound recording and video conferencing. However, if ambient noise in the environment or physical obstruction of the microphone interferes with the voice signal of the near-end user, the other party to the call may not be able to hear the voice signal as clea...

Claims

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Application Information

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IPC IPC(8): G10L21/00H04B3/23H04M9/08H04M1/03H04R3/00
CPCH04M1/605H04R3/005H04M9/082H04B3/23G10L2021/02165G10L21/0208H04M1/035H04R3/00H04R2410/05H04M1/6008G10L2021/02166
Inventor 陈少海李星群
Owner APPLE INC
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