Alternative video data compression method, video specification conversion integrated circuit, and operating method

By using a video standard conversion integrated circuit to convert the input video signal into a substitute video signal, the problem of a black screen when there is no input signal on the display is solved, and the substitute video can be displayed in standby mode, thus reducing memory costs.

CN122457731APending Publication Date: 2026-07-24VIA LABS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
VIA LABS INC
Filing Date
2026-05-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

When the video source is not connected or the input video signal is lost, the monitor will display a black screen and will be unable to output a replacement video signal.

Method used

It adopts a video standard conversion integrated circuit, receives video signals through the input interface, uses a standard conversion engine to convert the signals into different standards, provides alternative video data in the internal memory, and outputs alternative video signals after decompression by the decompression circuit. The output interface outputs alternative video to the display in standby mode.

Benefits of technology

When the input video signal is lost, the monitor can display alternative video instead of a black screen, reducing the internal memory space required and lowering costs.

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Abstract

The present application provides a kind of alternative video data compression method, video specification conversion integrated circuit and operating method.Video specification conversion integrated circuit includes input interface, specification conversion engine, internal memory, decompression circuit and output interface.Specification conversion engine receives input video signal from input interface.In specification conversion mode, specification conversion engine converts input video signal meeting first video specification into converted video signal meeting second video specification, and output interface selects converted video signal as output video signal and outputs to display.In standby mode, decompression circuit decompresses the alternative video data of internal memory to generate alternative video signal, and output interface selects alternative video signal as output video signal and outputs to display.
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