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Earphone interface multiplexing circuit, connector and display

A technology of multiplexing circuits and headphone interfaces, which is applied in the field of multiplexing circuits of connectors, displays, and headphone interfaces, and can solve the problems of low versatility of video transmission interfaces.

Active Publication Date: 2022-02-15
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a multiplexing circuit for earphone jacks, aiming to solve the problem of low universality of video transmission interfaces of existing displays

Method used

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  • Earphone interface multiplexing circuit, connector and display
  • Earphone interface multiplexing circuit, connector and display
  • Earphone interface multiplexing circuit, connector and display

Examples

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

[0037]In addition, if there are descriptions involving "first", "seco...

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Abstract

The invention discloses an earphone interface multiplexing circuit, a connector and a display. The display has an audio signal output end and a video signal input end. The earphone interface multiplexing circuit includes a signal input interface, an earphone communication circuit and a video communication circuit. The earphone is plugged in or connected to the video signal interface, so as to output the audio signal or receive the video signal. When the earphone communication circuit receives the earphone pin opening signal, it conducts the signal input interface and the sound signal output end. When the video communication circuit receives the video pin opening signal, it conducts the signal input interface with the video signal interface. The invention is used to solve the technical problem that the universality of the video transmission interface of the display is low.

Description

technical field [0001] The present invention relates to the technical field of displays, in particular to a multiplexing circuit of an earphone interface, a connector and a display. Background technique [0002] The early AV (AV interface) interface of the display is a relatively early interface. It consists of three colors of lines: yellow, white and red. The yellow line is the video transmission line, and the white and red are responsible for the sound of the left and right channels. transmission. The emergence of the AV interface separated video and audio for the first time, but only one line is responsible for video transmission, so this transmission method still mixes luminance and chrominance first, and then decodes and displays it on the display device. There is also some loss in video transmission quality. [0003] However, with the development of technology, the transmission format of video signals has also increased, along with other specific interfaces to transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/60H04N5/44H04N5/765
CPCH04N5/607H04N5/44H04N5/765
Inventor 李友峰王江张俊才张寅生韩威巍
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD