Earphone interface line sequence adaption method and device

A headphone interface and headphone technology, applied in the electronic field, can solve the problems of troublesome use, limited line sequence combination, and low versatility, and achieve the effect of simple use

Active Publication Date: 2014-09-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main component of the line sequence adjustment circuit is a dial switch, which is manually dialed by the user to adjust the RJ9 earphones with different line sequences to match the terminal equipment. However, the line sequence combinations that can be adjusted in this way are limited, generally 3 to 4 groups , its versatility is not high, and requires manual adjustment by the user, which is troublesome to use

Method used

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  • Earphone interface line sequence adaption method and device
  • Earphone interface line sequence adaption method and device
  • Earphone interface line sequence adaption method and device

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0051] The interface of the RJ9 earphone has a total of 4 signal lines, two of which are signal lines of the earpiece, including two R signal lines, connected to the earpiece of the earphone, and the other two signal lines are earphone microphone signal lines, including the M+ signal line and M-signal cable, connected to the microphone of the headset. There is no need to distinguish the positive and negative ends of the R signal line, just connect to the R signal l...

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Abstract

An embodiment of the invention discloses an earphone interface line sequence adaption method and device. The earphone interface line sequence adaption method comprises the following steps: carrying out impedance test on any two signal lines from four signal lines of an earphone; if the impedance between the two signal lines is smaller than a first threshold value, determining the tested two signal lines to be R signal lines, and the other two signal lines to be earphone microphone signal lines; connecting the two R signal lines to the two R signal line wiring terminals of terminal equipment belonging to earphone interfaces respectively; testing the impedance between the earphone microphone signal lines; determining the M+ signal line and the M- signal line according to the impedance obtained in the test; and connecting the M+ signal line and the M- signal line to the M+ signal line wiring terminal and the M- signal line wiring terminal of the terminal equipment of the earphone interfaces respectively. According to the earphone interface line sequence adaption method and device, the terminal equipment is allowed to adapt to the line sequence of an RJ 9earphone automatically without human intervention, so that simple usage is achieved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a line sequence adaptation method and device for an earphone interface. Background technique [0002] Earphones are widely used in call centers and other occasions with a large amount of traffic because they are easy to use and can free users' hands. Earphones can be divided into 3.5mm earphones, RJ9 earphones, USB earphones, etc. according to their interfaces. Among them, RJ9 earphones occupy a major share in enterprise-level applications. The interface of the RJ9 earphone has 4 signal lines, which are R, R, M+, M-, among them, R, R are connected to the earpiece of the earphone, and the positive and negative terminals are not distinguished, and M+, M- are connected to the microphone of the earphone, and the positive and negative terminals need to be distinguished. end. Different RJ9 earphones may have different line sequences of the interface signal lines, so the RJ9 earph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00H04R1/10
Inventor 程乔乔
Owner HUAWEI TECH CO LTD
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