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Audio encoder/decoder with audio insertion-connection detection capacity and audio insertion-connection detecting method

A technology of audio codec and detection capability, which is applied in the direction of instruments, voice analysis, etc.

Active Publication Date: 2015-05-06
REALTEK SEMICON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the current plug-in detection technologies is to set an independent detection structure on the circuit board to detect whether a plug is inserted or pulled out, and then transmit the detection results to the audio codec through dedicated pins for the audio codec The decoder judges whether there is a plug based on the detection result. However, this method needs to additionally set the aforementioned independent detection structure and occupy the pins of the audio codec, thus increasing the cost of the overall solution.

Method used

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  • Audio encoder/decoder with audio insertion-connection detection capacity and audio insertion-connection detecting method
  • Audio encoder/decoder with audio insertion-connection detection capacity and audio insertion-connection detecting method
  • Audio encoder/decoder with audio insertion-connection detection capacity and audio insertion-connection detecting method

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Embodiment Construction

[0024] The technical terms in the following description refer to the customary terms in this technical field. If some terms are explained or defined in this manual, the explanations of these terms shall be subject to the descriptions or definitions in this manual.

[0025] The disclosure of the present invention includes an audio codec with audio plug detection capability and an audio plug detection method for detecting the presence or absence of an audio plug, in addition to being applicable to an integrated circuit (for example, an audio codec (Audio Codec)) , can also be applied to system devices (such as music players, computers or mobile phones), where the audio plug such as figure 1 As shown, it may be: a monophonic plug 110, including a tip contact (Tip Contact) (for example, the left channel contact L) and a socket (Sleeve Contact) (for example, a ground contact G); a dual-channel plug 120, including Top contact (for example, left channel contact L), ring contact (for...

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Abstract

The invention discloses an audio encoder / decoder with audio insertion-connection detection capacity and an audio insertion-connection detecting method. The embodiment of the audio encoder / decoder includes a first contact signal input end, for being electrically connected with a sleeving-connecting point of a plug, and receiving a first contact signal; a second contact signal input end, for electrically connected with an annular connecting point or a sleeving-connecting point of the plug, and receiving a second contact signal; a plug detecting circuit, coupled with the first contact or second contact signal input end for detecting whether the voltage level of the first or second contact signal changes, and generate a plug detecting signal accordingly; and a control circuit, coupled with the plug detecting circuit, for judging whether the plug exists according to the plug detecting signal.

Description

technical field [0001] The present invention relates to an audio codec with audio plug detection capability and an audio plug detection method, in particular to an audio codec and an audio plug detection method for detecting via existing pins of the audio codec. Background technique [0002] Generally speaking, an electronic device with an audio processing function provides an earphone jack and / or a microphone jack for users to connect the electronic device with an earphone and / or a microphone. Some electronic devices provide only one of the earphone and microphone jacks; some provide earphone and microphone jacks separately; However, no matter which of the above-mentioned electronic devices, it is necessary to detect whether the plug of the earphone, microphone or headset is plugged in or pulled out, so as to perform corresponding actions according to the detection result. One of the current plug-in detection technologies is to set an independent detection structure on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/16
Inventor 徐元平张政斌
Owner REALTEK SEMICON CORP
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