Audio and video equipment and startup and shutdown method thereof

A technology of audio and video, switch machine, applied in the field of TV, can solve the problems of wasting energy, inconvenient use, etc., and achieve the effect of convenient operation

Inactive Publication Date: 2011-05-25
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an audio-video device and its switching method for the above-mentioned disadvantages of inconvenient use and energy waste in the prior art, which can enable the audio-video device connected to the TV through the SCART interface to use Convenience and energy saving

Method used

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  • Audio and video equipment and startup and shutdown method thereof
  • Audio and video equipment and startup and shutdown method thereof
  • Audio and video equipment and startup and shutdown method thereof

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Embodiment Construction

[0023] Such as figure 1 As shown, in the logic structure diagram of the first embodiment of the audio and video equipment of the present invention, the audio and video equipment 100 can be a set-top box, DVD, etc., and the audio and video equipment 100 includes a SCART interface 110, a line synchronization separation circuit 120 and an MCU 130, wherein , this audio-video equipment 100 is connected with TV by SCART interface 110, and the 20th pin (composite video terminal) of SCART interface 110 is connected the input end of line synchronous separation circuit 120, and the output end of line synchronous separation circuit 120 is connected a GPIO of MCU 130 mouth.

[0024] When the TV was in working condition, the 20th pin of the SCART interface 110 output composite video signal (CVBS), and the line synchronization separation circuit 120 separated the line synchronization signal from the composite video signal, and the line synchronization separation circuit 120 could be a diffe...

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PUM

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Abstract

The invention relates to audio and video equipment and a startup and shutdown method thereof. The audio and video equipment is connected with a television set through an SCART (syndicat des constructeurs d'appareils radiorecepteurs et televiseurs) interface. The method comprises the following steps of: detecting a synchronizing signal in an operating state in real time; if the synchronizing signal is not detected, entering a standby state from the current operating state; detecting the synchronizing signal in the standby state in real time; and if the synchronizing signal is detected, entering the operating state from the current standby state, wherein the synchronizing signal is separated from a composite video signal output by the SCART interface. By implementing the technical scheme provided by the invention, the audio and video equipment is started up and shut down along with the startup and the shutdown of the television set, so user operation is facilitated; meanwhile, the problem of energy waste caused by switching off television set but not switching off video equipment by a user is solved, and the effects of energy conservation and environmental friendliness are achieved.

Description

technical field [0001] The invention relates to the field of television, and more specifically relates to an audio-video device connected to the television through a SCART interface and a method for switching it on and off. Background technique [0002] The SCART (Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs) interface is a dedicated audio and video interface. It is an industry standard for the interconnection of audio-visual equipment developed by the French company Peritel. And other interconnection and intercommunication interfaces on audio and video equipment. The standard SCART interface is a 21-pin connector. Audio and video signals are defined in these 21 pins, which can be used to transmit video signals such as CVBS (composite video signal) and interlaced RGB signals, as well as stereo audio signals. The 21 pins transmit 21 signals at the same time, which can be divided into video signal, audio signal, control signal, ground wire and data w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/765H04N5/44
Inventor 程文杰
Owner SHENZHEN JIUZHOU ELECTRIC
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