Genlock system and method

A technology of genlocking and synchronizing signals, applied in the parts of TV system, TV, color TV, etc., can solve the problems of limited number of equipment, poor system operation ability, high price, etc.

Inactive Publication Date: 2016-04-06
HUIZHOU WELLAV TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] However, in the field of digital TV technology, when synchronizing the signal output of each front-end equipment of the conventional radio and television system, it is necessary to use a dedicated synchronizer for the Genlock synchronization signal.

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] see figure 1 , is a schematic structural diagram of an embodiment of the Genlock system provided by the present invention.

[0042] In this embodiment, the Genlock genlock system mainly includes: a sync separator 10 , a timing generator 20 , and a programmable digital logic circuit 30 .

[0043]Wherein, the sync separator 10 is used to access an external Genlock signal, analyze the Genlock signal, and separate the multi-phase input sync signal. In t...

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Abstract

The invention discloses a Genlock system. The system comprises a synchronizing separator for accessing an external Genlock signal and separating a multi-phase input synchronous signal for the Genlock signal; a time sequence generator for producing a video pixel clock and a time sequence signal for the Genlock under the driving of the multi-phase input synchronous signal; a programmable digital logic circuit for accessing and caching video data and computing synchronous information in the video data, and determining whether to synchronously lock the Genlock signal according to transmission delay time between the synchronous information in the video data and the synchronous information of the Genlock signal. The invention further provides a Genlock method. Through the implementation of the technical scheme provided by the invention, the number of accessing video device cannot be limited, the operation capacity of the system is improved and the system cost is lowered.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a Genlock system and method. Background technique [0002] Frame synchronization is a process of synchronizing the scanning of display pixels with the synchronization source. The frame synchronization phase can synchronize the frames on each display screen with the help of hardware, and at the same time refresh the picture on multiple display screens. If applied in When displayed on multiple monitors, the frame synchronization system helps to maintain the continuity of the picture. [0003] Genlock is a frame synchronization technique commonly used in video post-processing, non-linear editing (NLE) and studios. This technology allows the output signal of the workstation graphics system to be synchronized (LOCK) with an externally generated (GEN) signal, thereby ensuring effective collaboration between all equipment in the studio (camera, video recorder, animation or s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/04H04N5/06H04N5/073
CPCH04N5/04H04N5/06H04N5/073
Inventor 黄奕鑫
Owner HUIZHOU WELLAV TECH
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