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Method for eliminating single channel digital video signal decoding interference

A digital video and signal technology, which is applied in the field of eliminating single-channel digital video signal decoding interference, and can solve problems such as the failure of the decoding chip to work normally.

Active Publication Date: 2016-08-10
中航华东光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for eliminating the decoding interference of a single-channel digital video signal, which overcomes the problem that the decoding chip cannot work normally and can output an interference signal during the decoding process. Realized single-channel DVI can transmit video data reliably

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  • Method for eliminating single channel digital video signal decoding interference
  • Method for eliminating single channel digital video signal decoding interference
  • Method for eliminating single channel digital video signal decoding interference

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Embodiment Construction

[0020] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0021] The present invention provides a method for eliminating decoding interference of a single-channel digital video signal. The method includes: using a field programmable gate array to output a transition modulation differential signal with a fixed voltage difference to the D1 channel of the digital video decoding chip and the D2 of the digital video decoding chip aisle.

[0022] Through the above-mentioned implementation mode, the method for eliminating single-channel digital video signal decoding interference of the present invention does not increase hardware complexity and material cost, only two pairs of differential lines are added on the PCB; the inte...

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Abstract

The invention discloses a method for eliminating single channel digital video signal decoding interference. The method comprises the step that a field programmable gate array is used to output a transient modulation differential signal of fixed differential pressure to a D1 channel of a digital video decoding chip and a D2 channel of the digital video decoding chip. The method for eliminating single channel digital video signal decoding interference overcomes the problems that the decoding chip cannot work normally and an interference signal is output in the process of decoding, so that single channel DVI is capable of reliably transmitting video data.

Description

technical field [0001] The invention relates to the field of digital video signal interference elimination, in particular to a method for eliminating single-channel digital video signal decoding interference. Background technique [0002] The standard of the DVI interface is the digital display interface launched by DDWG, a digital display working group jointly formed by Silicon Image, Intel and other companies in 1999. DVI uses Transition Minimized Differential Signaling (TMDS) as the electrical connection. Due to its fast transmission speed (up to about 8GBPS), DVI is especially suitable for transmitting uncompressed, high-definition video signals. [0003] The transmitter of each link of the DVI data link contains three identical encoders, corresponding to three groups of RGB digital video signals, and each encoder drives a serial TMDS channel. The data input to each encoder includes 8bit pixel data and 2bit control signal. Among them, channel 0 corresponds to B inform...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/44H04N19/42G09G5/00
CPCG09G5/006H04N19/42H04N19/44
Inventor 陈文明刘波向艳袁烨谢飞霞
Owner 中航华东光电有限公司