Signal switching method and system

A signal switching and target signal technology, applied in the field of signal switching methods and systems, can solve problems such as difficult development, high cost, and high process cost

Inactive Publication Date: 2017-12-15
LONTIUM SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since HDMI2.0 requires digital circuits to run at 600MHz, in order to meet this requirement, it must be taped on a deep sub-micron process, which is very expensive and complex to implement. High process cost and very difficult to develop

Method used

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  • Signal switching method and system
  • Signal switching method and system

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] The embodiment of the present invention discloses a signal switching method, see figure 1 As shown, the method includes:

[0047] S101. Receive multiple HDMI analog signals;

[0048] Specifically, the technical solution of the embodiment of the present invention is used to select one signal from multiple HDMI signals and provide it to a display device for display. Therefore, at the data source end, multiple HDMI analog signal outputs are simultaneousl...

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Abstract

The invention provides a signal switching method. The method comprises the following steps: receiving multiple HDMI analog signals; respectively converting an analog signal in each data channel of each HDMI analog signal into a digital signal so as to obtain multiple HDMI digital signals; selecting one HDMI digital signal from multiple HDMI digital signals as a target signal; performing data alignment processing on the data in each data channel of the target signal to obtain an aligned target signal; performing synchronization processing on the data in each data channel of the aligned target signal to obtain a synchronized target signal; converting the synchronized target signal into an analog signal to output. By using the signal switching method provided by the invention, the convenient high-definition signal switching processing can be realized under low technological level.

Description

technical field [0001] The present invention relates to the technical field of signal processing, in particular to a signal switching method and system. Background technique [0002] With the continuous development of electronic technology, viewers have higher and higher requirements for picture quality, and more people begin to choose high-definition TVs or even ultra-high-definition TVs, such as 4K TVs. [0003] The high-definition multimedia interface (High-Definition Media Interface, HDMI) can transmit ultra-high-definition signals, such as 4K signals and 8K signals. This ultra-high-definition signal has uncompressed, lossless high-resolution and real-time characteristics, which can bring users Come to the high-quality audition experience. For example, HDMI1.4 already supports 4K30Hz, and HDMI2.0 increases the frame data to 4K60Hz, which makes the picture smoother, which is also the result of the increased transmission rate. [0004] For the display device, when there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/765H04N21/4363H04N5/268
CPCH04N5/765H04N5/268H04N21/43635
Inventor 魏国苏进陈峰
Owner LONTIUM SEMICON CORP
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