Controt play-back device of TV. receiver set stored image and accompanying sound

A TV receiver and a technology for storing images, which is applied to parts of color TVs, parts of TV systems, TVs, etc., can solve the problems of not being able to meet people's auditory needs, shortening the service life of TVs, and color casts in pictures

Inactive Publication Date: 2003-12-17
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the picture used for squelching noise or starting up, if it is realized with a colored background, dot matrix characters or graphics, only a few color electron guns are working, and long-term accumulation will reduce the ability of the few color ele...

Method used

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  • Controt play-back device of TV. receiver set stored image and accompanying sound
  • Controt play-back device of TV. receiver set stored image and accompanying sound
  • Controt play-back device of TV. receiver set stored image and accompanying sound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A TV receiver storage image and audio control playback device, wherein:

[0029] The main CPU of the remote control of the TV receiver communicates with the encoding chip through the control line according to the current state or according to the received remote control information;

[0030] The encoding chip calls out the compressed image and sound signals in the storage chip, decompresses and restores them into digital video signals and digital audio signals in the encoding chip;

[0031] After the digital video signal is encoded by PAL / NTSC in the encoding chip, it passes through a low-pass filter to output an analog composite video signal or bright / color separation signal to the display screen;

[0032] The digital audio signal is converted into an analog audio signal by the digital / analog conversion module and output to the speaker;

[0033] The intermediate conversion chip provides storage for the intermediate data in the decoding and encoding process of the enco...

Embodiment 2

[0041] A TV receiver storage image and audio control playback device, wherein:

[0042] The main CPU of the TV receiver remote control system communicates with the encoding chip through the control line according to the current state or according to the received remote control information;

[0043] The encoding chip calls out the compressed image and sound signals in the storage chip, decompresses and restores them into digital video signals and digital audio signals in the encoding chip;

[0044] After the digital video signal is encoded by PAL / NTSC in the encoding chip, it passes through a low-pass filter to output an analog composite video signal or bright / color separation signal to the display screen;

[0045] The digital audio signal is converted into an analog audio signal by the digital / analog conversion module and output to the speaker;

[0046] The intermediate conversion chip provides storage for the intermediate data in the decoding and encoding process of the enco...

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PUM

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Abstract

The invention relates to TV receiver, especially to a kind receiver which can store image and sound. The microde including encode chip, memory chip, intermediate transform chip and audio D/A conversion modular is connected with reproducing circuit. The synchronous reproducing of stored image and sound is controlled by program of the microcode. It displays image with high fidelity while reproducing dulect music when TV silent instrument is turned on.

Description

technical field [0001] The invention relates to the field of control and playback of television receivers, in particular to a control and playback device of a television receiver capable of storing images and accompanying sounds. Background technique [0002] Existing TV receivers are equipment used to receive TV stations or other media signals. The screens used for squelching or starting up are generally realized with colored backgrounds, dot matrix characters or graphics. The prior art also has high-definition images For squelch or splash screen. In the picture used for squelching noise or starting up, if it is realized with a colored background, dot matrix characters or graphics, only a few color electron guns are working, and long-term accumulation will reduce the ability of the few color electron guns, and the picture will appear color cast, which will shorten the service life of the TV. Reduce, if adopt high-definition picture, although improved the service life of TV...

Claims

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Application Information

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IPC IPC(8): H04N5/44
Inventor 倪润峰郑光清陈子荣肖静峰
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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