Video signal black-screen-free switching processing method and device
A technology of a video signal and a processing device, which is applied in the field of video signal switching without black screen, can solve the problems of black screen, off screen or flicker of display equipment, affecting the effect and experience of multimedia conferences, and inability to meet high-quality output. quality effect
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Embodiment 1
[0025] The invention provides a method for realizing signal switching processing without black screen, which can be applied to design a separate processor, externally connected to the output rear end of the matrix and the switcher; it can also be built into the output circuit of the matrix and the switcher, Realize signal switching processing without black screen, including: receiving video signals; timing monitoring of the received signals according to the current application configuration and EDID information of the back-end display device; when the input timing changes are detected, the output screen is locked, and then Realize the effect of locking the last frame when the signal is lost or switched; when the input timing is detected to be stable, perform image resolution conversion according to the configured resolution; display the image after resolution conversion.
Embodiment 2
[0027] The present invention also provides a device for implementing the method, which belongs to a new type of application in the video matrix switching system, and can provide switching actions without black screen, screen off, and flickering when switching video signals, satisfying high-quality, high-quality resolution video presentation needs.
[0028] The device is equipped with a signal receiving module, an image resolution conversion processing module (including timing monitoring, image scaling, output images, and timing generation), a signal sending module and an MCU control module, including at least 2 physical interfaces: 1 video signal input Interface, 1 video signal output interface.
[0029] The output terminals of the matrix and the switcher are connected to the input interface of the non-black screen switching processing device, and the input supports VESA mainstream resolution standards, up to 4K@60Hz; the display device (such as a monitor, projector, etc.) is ...
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Abstract
Description
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Application Information
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