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Multimedia device

A technology for multimedia and display devices, applied in the field of communications, can solve the problem that a TV cannot normally receive a second video signal, etc.

Inactive Publication Date: 2010-07-14
SUNPLUS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the TV will not be able to receive the second video signal normally

Method used

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Embodiment Construction

[0033] The technical solutions provided by the present invention will be further introduced below in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the multimedia device 100 of the present invention includes video output terminals 102, 104, 106, 108, a control circuit 150, and a plurality of resistors Rcvbs, Rv, Ru, Ry. The multimedia device 100 can simultaneously output the CVBS signal and the YUV signal for the user to connect to the TV 200 with a signal cable. Such as figure 1 As shown, the TV set 200 includes a video decoder (video decoder) 210 and a receiving resistor Rr, and the receiving resistor is respectively connected to the input terminal of the video decoder 210 and the ground terminal. The user uses a signal cable to connect to the video output terminal 102 to receive the CVBS signal, and the video decoder 210 can receive and decode the CVBS signal. In the present invention, the resistors Rcvbs, Rv, Ru, Ry in the multimedia dev...

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Abstract

The invention provides a multimedia device which relates to the field of communication. The multimedia device is provided with a plurality of video output ends. A user can selectively connect one video output end to a television. A detector can detect an analog video signal on the video output end. When the user plugs the first video output end out and connects the video output end, the detector can control a first digital-analog converter to stop generating a first analog video signal from the first video output end, and then control a second digital-analog converter to stop generating a second analog video signal from the second video output end.

Description

technical field [0001] The invention relates to the communication field, in particular to a multimedia device. Background technique [0002] Today's multi-media apparatuses, such as a game player or a media player, use signal lines to transmit video and audio signals to a display device, such as a television. Since today's televisions still mainly receive analog video and audio signals, the multimedia device must provide corresponding analog audio and video signals to output to the television. [0003] In general, a multimedia device can simultaneously output multiple video signals of different specifications. The video signals provided by standard multimedia devices include: composite video broadcast signal (Composite Video Broadcast Signal, referred to as CVBS signal), bright color separation signal (Separate Video signal, S-Video signal), bright color component signal (abbreviated as YUV signal) , Red, green and blue component signal (referred to as RGB signal). Among ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/00
Inventor 刘昭勇武威黄界樫陈沂甫
Owner SUNPLUS TECH CO LTD