Method and device for generating TTL video signal

The invention relates to a method and a device for generating a TTL video signal. The method comprises the steps as follows: receiving and demodulating an LVDS video signal, and generating LVDS parallel demodulation data and an LVDS pixel clock, performing video decoding to the LVDS parallel demodul...

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Bibliographische Detailangaben
Hauptverfasser:	XIAO JIABO, HU LEI, XU MENGYIN, ZHU YAFAN
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS
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Beschreibung
Zusammenfassung:	The invention relates to a method and a device for generating a TTL video signal. The method comprises the steps as follows: receiving and demodulating an LVDS video signal, and generating LVDS parallel demodulation data and an LVDS pixel clock, performing video decoding to the LVDS parallel demodulation data according to an LVDS video decoding control signal and generating LVDS video source data and an LVDS video source synchronizing signal, converting the LVDS video source data and the LVDS video source synchronizing signal into an RGB video signal according to an LVDS video switch control signal, and performing corresponding frequency-doubling operation to the LVDS pixel clock, and generating the corresponding RGB video pixel clock, and converting the RGB video signal into the TTL video signal after receiving an TTL video switch starting instruction. The method and the device of the invention could be used for detecting the quality of the LVDS video signal and the correctness of the image data, and is high in reliability, free of error judgment, simple in operation, high in detection efficiency and low in cost.