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HDMI high-picture quality synchronous de-interlacing system and method

A de-interlacing, high-quality technology, applied to TV system components, standard conversion, TV, etc., can solve the problems of no HDMI system, reduced brightness, and inability to synchronize

Active Publication Date: 2019-03-01
XIAMEN RGBLINK SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, each input interface of the traditional HDMI input module does not have a unified synchronization timing, which leads to the lack of unified synchronization information between multiple HDMI signals, and the synchronization between multiple HDMI input signals, which leads to the splicing of the video processor. Video out of sync, affecting customer experience
[0003] In addition, the traditional HDMI system does not have the Deinterlace algorithm function. Deinterlacing is a method of converting interlaced (interlace) video signals into progressive (progressive) progressive scan video signals.
Now the new display devices are all using progressive scan, playing the interlaced image directly on the progressive scan device will produce serious flicker phenomenon, and because of the interlaced signal, only one line has an image in two lines, and the other line is completely black , so the brightness will be reduced by half compared to the progressive signal

Method used

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  • HDMI high-picture quality synchronous de-interlacing system and method
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  • HDMI high-picture quality synchronous de-interlacing system and method

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Embodiment Construction

[0028] Such as figure 1 As shown, the present invention discloses a HDMI high-quality synchronous deinterlacing system, which includes an equalization and deserialization module, a first FPGA module, a second FPGA module, an MCU control module, a clock IC, a synchronous clock bus, and a backplane transmission module.

[0029] Among them, the equalization and deserialization module is realized by IT6604 chip, its input end is connected to the HDMI input interface, so as to input the high-speed HDMI signal after long-distance transmission, and the output end is connected to the first FPGA module. The equalization and deserialization module is used to equalize the high-speed HDMI module, convert the equalized high-speed HDMI signal into a low-speed YUV format TTL signal, and transmit the TTL signal to the first FPGA module.

[0030] The signal input end of the first FPGA module is connected to the output end of the equalization and deserialization module, the clock input end is ...

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Abstract

The invention relates to an HDMI high-picture quality synchronous de-interlacing system and method. An MCU control module is connected with a first FPGA module through a synchronous clock bus, so thata synchronous clock can be provided for the first FPGA module, and the synchronization of multiple paths of video signals can be realized; and simultaneously, the first FPGA module opens up an interlaced signal storage area and a progressive signal storage area to realize the conversion from interlaced signals to progressive signals and complete the de-interlacing operation. Thereby, the synchronization and de-interlacing among multiple HDMI input signals can be realized, and the quality of video pictures output by the back end can be ensured.

Description

technical field [0001] The invention relates to the technical field of video processors, in particular to an HDMI high-quality synchronous deinterlacing system and method. Background technique [0002] A video processor is a video data processing device that supports multiple input signals such as VGA, composite video, SDI signal, and digital HDMI. In 2002, seven companies including Hitachi, Panasonic, Philips, Silicon Image, Sony, Thomson, and Toshiba established the HDMI organization and promulgated the HDMI standard for high-definition digital multimedia interface. The HDMI protocol realizes the simultaneous transmission of audio and video through the time-division control of video signals, audio signals and control signals. The HDMI signal transmission process includes 3 periods: video data transmission period, island data transmission period and control data transmission period. During the island data transmission period, audio data and auxiliary data (information fram...

Claims

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Application Information

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IPC IPC(8): H04N7/01H04N5/765H04N5/04
CPCH04N5/04H04N5/765H04N7/012Y02D10/00
Inventor 胡宏清
Owner XIAMEN RGBLINK SCI & TECH