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Device compatible with earphone interfaces

An earphone interface and compatibility technology, applied in the field of devices compatible with earphone interface, can solve the problem of hardware incompatibility, etc., and achieve the effect of low cost

Active Publication Date: 2013-01-16
SUNYARD SYST ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a device compatible with earphone jacks to solve the problem of hardware incompatibility when the order of the microphones and ground wires of two standard mobile terminal earphone jacks is reversed

Method used

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  • Device compatible with earphone interfaces
  • Device compatible with earphone interfaces
  • Device compatible with earphone interfaces

Examples

Experimental program
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Embodiment

[0031] image 3 It is a structural block diagram of a compatible earphone interface device provided by a specific embodiment of the present invention; figure 1 As shown, the compatible earphone interface device is composed of an input interface 201, a full bridge circuit 202 and an output interface 203; the input interface 201 includes a tip, a first middle ring, a second middle ring and an end; the full bridge circuit 202 has a first input end and a second end Two input terminals, a first output terminal and a second output terminal; the output interface 203 includes a left audio channel, a right audio channel, a microphone and a ground wire.

[0032] The tip and the first middle ring of the input interface 201 are connected with the left sound channel and the right sound channel of the output interface 203 respectively; The second middle ring and the end of the input interface 201 are connected with two input terminals of the full bridge circuit 202; the full bridge circuit ...

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Abstract

The invention provides a device compatible with earphone interfaces. The device comprises an input interface, a full bridge circuit and an output interface, wherein the input interface comprises a pointed end, a first middle ring, a second middle ring and a tail end; the output interface comprises a left sound channel, a right sound channel, a microphone and a ground wire; the full bridge circuit comprises a first input end, a second input end, a first output end and a second output end; the second middle ring and the tail end of the input interface are connected with the two input ends of the full bridge circuit; and the microphone and the ground wire of the output interface are connected with the two output ends of the full bridge circuit. By the technical scheme, the input interfaces are reversely connected by using the full bridge circuit, and an output signal is not influenced. The problem that hardware cannot be compatible when microphones and ground wires of mobile terminal earphone interfaces of two standards are reversed in sequence is solved, and the device intelligently compatible with two types of standard interfaces is realized.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a device compatible with an earphone jack. Background technique [0002] With the continuous innovation and development of science and technology, the application of mobile terminals is becoming more and more extensive. Since the shape and electrical performance of the USB interfaces of mobile terminals such as mobile phones and tablet computers of various brands are quite different, but the shape and electrical performance of the earphone jack are the same, so it is currently the preferred solution to connect the mobile terminal and the device with the earphone jack. [0003] Now mobile terminals such as mobile phones and tablet computers all use 4-segment stereo headphone jacks with microphones, with figure 1 It is a schematic diagram of a 4-segment stereo headphone interface plug with a microphone in the prior art, such as figure 1 As shown, 101 is the tip of the plug, 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R31/06H01R27/00H01R13/66
Inventor 田若征杨斌
Owner SUNYARD SYST ENG CO LTD
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