Audio code products and audio code communication channel circuits

A voice-code communication channel and circuit technology, applied in the electronic field, can solve the problem of uncontrollable signal amplitude, and achieve the effect of improving the range of the host

Active Publication Date: 2019-05-17
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the signal amplitude from the sound code product to the host is uncontrollable, the present invention provides a sound code product and a sound code communication channel circuit

Method used

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  • Audio code products and audio code communication channel circuits
  • Audio code products and audio code communication channel circuits
  • Audio code products and audio code communication channel circuits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a sound code communication channel circuit, figure 2 A schematic structural diagram of the voice code communication channel circuit provided in this embodiment.

[0033] like figure 2 As shown, the audio code communication channel circuit provided by the present embodiment mainly includes: an identification circuit 202, an audio code communication channel 204, and an electronic component 206 whose first end is connected to the output end of the audio code communication channel and whose second end is grounded, wherein, The resistance of the electronic component 206 is within a predetermined range.

[0034] In this embodiment, the identification circuit 202 is connected between the two channels of the audio code product. After the audio code product is inserted into the host, the host will identify it through the identification circuit 202 to detect whether the earphones match. The audio code communication channel 204 is used to transmit the ...

Embodiment 2

[0050] Since in practice, the positions of the MIC interface are different in different standards, in order to be compatible with the four-segment audio interface of different standards on the host, in the embodiment of the present invention, the channel corresponding to the MIC pin and the GND pin are regarded as audio code communication channels, such as Figure 7 Shown, in the present embodiment, sound code communication channel circuit comprises sound code communication channel 204-1 and sound code communication channel 204-2, connects respectively at the output end of sound code communication channel 204-1 and sound code communication channel 204-2 A grounding electronic component, i.e. electronic component 206-1 and electronic component 206-2, the output ends of the audio code communication channel 204-1 and the audio code communication channel 204-2 are connected to the MIC pin and the GND pin through capacitors 201 and 203 respectively . In the specific implementation...

Embodiment 3

[0061] This embodiment provides a sound code communication channel circuit, Figure 10 It is a circuit structure diagram of the voice code communication channel circuit in this embodiment. like Figure 10 As shown, in this embodiment, the audio code product connector (EarphonePlus) has 4 pins, which are respectively:

[0062] Pin 1: , connect the EP_L channel;

[0063] Pin 2: , connect to EP_R channel;

[0064] Pin 3: , connect to the ground EP_PIN3 channel; and

[0065] Pin 4: , connect the voice code communication channel EP_PIN4 (in practical applications, for different standards, pins and The positions of the pins can be reversed, that is, pin 3 is pin, pin 4 is pins, such as Figure 11 shown).

[0066] In addition, the audio code communication channel EP_PIN4 is provided with an equivalent resistance R2 and a DC blocking capacitor C2. Between the effective resistor R4 and the capacitor C2) the pull-down resistor R4 is connected, and an identif...

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PUM

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Abstract

The invention discloses a phonetic code product and a phonetic code communication channel circuit. The phonetic code communication channel circuit comprises a recognition circuit, a phonetic code communication channel and an electronic component, the first end of the electronic component is connected with the output end of the phonetic code communication channel while the second end of the same is grounded, and the resistance of the electronic component is within a preset range.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a sound code product and a sound code communication channel circuit. Background technique [0002] At present, audio connectors (also called audio interfaces) are divided into three-segment audio connectors and four-segment audio connectors, wherein the four-segment audio connectors are further divided into national standard four-segment interfaces and American standard four-segment interfaces. Pin 1 of the national standard four-segment interface (also called interface) is the left channel pin, pin 2 is the right channel pin, pin 3 is the microphone pin, pin 4 is the ground pin, and The pin setting method of the American standard four-segment interface is different. Among them, pin 1 is the left channel pin (also called the left channel interface), and pin 2 is the right channel pin (also called Right channel interface), pin 3 is the ground (GND) pin (also called the ground...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
Inventor 李东声
Owner TENDYRON CORP
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