Method for ensuring non-jittering switching of two different signal formats in matrix

Abstract

The invention discloses a method for ensuring non-jittering switching of two different signal formats in a matrix. The method for ensuring the non-jittering switching of the two different signal formats in the matrix comprises the following steps: according to the different signal formats, delaying for corresponding delaying time durations; and switching signals. After implementation of the technical scheme, the method has the benefits as follows: according to the different signal formats, different delaying time durations are set; on the basis of an initial switching time, according to the delaying time duration of a currently-switched signal format, switching of the signal format is delayed; therefore, one matrix can ensure non-jittering switching of two or more different signal formats.

Description

technical field [0001] The invention relates to a signal format switching method, more specifically, to a method for solving the problem of not shaking when switching between two different signal formats in a matrix. Background technique [0002] The matrix is ​​a switching device that realizes multi-channel audio and video / VGA and other signals. Generally, in the case of multiple inputs, there are multiple output options, forming a matrix structure. That is, each output can be "shorted" with different input signals, and each output can only be connected to a certain input, but a certain input can (simultaneously) be connected to different outputs. In general practice, the structure forming M×N is called a matrix, the structure of M×1 is called a switcher or selector, and the structure of 1×M is called a distributor. The principle of the matrix switcher is to use the on and off of the internal circuit of the chip to turn on and off, and can control the signal selection thr...

AI Technical Summary

Problems solved by technology

[0010] The current problem with general matrices is that although some matrices are already compatible with multiple signal formats, the signals often jitter during the actual switching process.

Or only one kind of signal does not jitter during the switching process, while other signals have jitter during the switching process

For example, when we perform video switching on a matrix compatible with high-definition / standard-definition video signals at the same time, the matrix that does not adopt this technical method often shows that although it can support high-definition / standard-definition signal switching during the switching process, the video will appear during the switching process. Jitter, the phenomenon we see with the naked eye is that the video shakes at the moment of switching

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