Signal switching method for internal and external microphone

A microphone signal, internal and external technology, applied in the direction of speaker distribution signal, etc., can solve the problem of not being able to distinguish whether the microphone is in place alone

Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: to overcome the disadvantage that when the microphone signal and the earphone signal in the prior art share an audio socket, the earphone and the microphone share an in-position detection circuit, and it is impossible to distinguish whether the microphone is in place alone. A method for switching signals between internal and external microphones to realize the detection of whether the microphone is alone

Method used

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  • Signal switching method for internal and external microphone
  • Signal switching method for internal and external microphone
  • Signal switching method for internal and external microphone

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Embodiment Construction

[0027] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0028] Such as figure 2 As shown, the present invention provides a method for switching between internal and external microphones in a device (such as a mobile phone) in which the microphone signal and the earphone signal share an audio socket, and adopts a separate presence detection circuit to externally place the sound playback device (speaker or earphone) respectively. ) and whether the microphone is in place to detect, and then notify the respective electronic switches to perform corresponding actions. According to the detection result of the external sound playback device, choose to output the audio signal to the built-in or external sound playback device. When the external sound playback device is in place, output the audio signal to the external sound playback device; according to the external microphone For the in-position detection result, sele...

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Abstract

The present invention relates to inside and outside setting signal switching method. It contains detecting external playback device and microphone whether in position in microphone signal and earphone signal sharing one audio frequency socket equipment, according to detecting result, selecting outputting voice signal to built-in or external playback device, when external playback device in position, outputting voice signal to external playback device; according to said external microphone in position detecting result, selecting built-in or external microphone signal to make inputting, when external microphone in position, selecting external microphone signal to make inputting.

Description

technical field [0001] The invention relates to the technical field of audio channel switching, in particular to a method for switching internal and external microphone signals in an audio socket device where a microphone signal and an earphone signal share one audio socket. Background technique [0002] The mutual switching technology of the audio path between the loudspeaker and the earphone, and between the built-in and external microphones has been widely used, for example, electronic devices with audio playback and recording functions basically have this technology. [0003] There are two main ways of channel switching: mechanical switch switching and electronic switch switching. Mechanical switch switching refers to relying on external mechanical pressure to make the metal spring mechanically deform, thereby driving the electrical contacts to open or close to achieve the purpose of signal path switching; electronic switch switching is to realize the signal path by usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/12
Inventor 张佐成
Owner HUAWEI TECH CO LTD
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