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Method and device for detecting video signal transmission fault by FPGA in laser television

A video signal, laser TV technology, applied in TV, electrical components, image communication, etc., can solve problems such as display errors, VBO signal processing stability is not very good, etc.

Active Publication Date: 2017-06-13
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The processing stability of the FPGA to the VBO signal is not very good, sometimes causing display errors such as black screen, white screen, blurred screen, and ghosting

Method used

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  • Method and device for detecting video signal transmission fault by FPGA in laser television
  • Method and device for detecting video signal transmission fault by FPGA in laser television
  • Method and device for detecting video signal transmission fault by FPGA in laser television

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] An embodiment of the present invention provides a method for an FPGA in a laser TV to detect a video signal transmission fault, and the method can be implemented by the laser TV. Among them, laser TV can include components such as memory, FPGA, FRC, SOC, display part (DLP), main controller of FPGA, etc. The internal structure diagram of the device can be as follows figure 1 shown. The FPGA includes a receiving end, a sending end, and a signal processing module. The receiving end can also be called an Rx (Receiver, receiving) module, and the sending end can also be called a Tx (Transmitter, sending) module. The receiving end and the sending end form a video signal transmission link. The main controller can be used to control th...

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PUM

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Abstract

The invention discloses a method and device for detecting video signal transmission faults by an FPGA in a laser television, belonging to the field of video signal processing technology. The receiving end and the transmitting end of the FPGA form a transmission link of the video signals. The method comprises the following step: when detecting that the signal locking state of the receiving end is abnormal, the timing information obtained by resolving the video signals through the receiving end has faults, or the signal locking state of the transmitting end is abnormal, outputting fault signals. By adopting the method and device disclosed by the invention, the phenomenon that the laser television continues to keep the wrong display state can be prevented.

Description

technical field [0001] The invention relates to the technical field of video signal processing, in particular to a method and a device for detecting video signal transmission faults by an FPGA in a laser TV. Background technique [0002] With the development of technology, laser TV has been widely promoted. In order to meet the requirements of video data transmission speed, the current laser TVs all use VBO (V-By-One, a video signal transmission standard) signal. [0003] During the display process of the laser TV, the VBO signal will pass through SOC (System-On-Chip, system on chip), FRC (Frame Rate Conversion, frame rate converter), FPGA (Field-Programmable Gate Array, field programmable gate array ), DLP (Digital Light Processing, digital light processor) and other components, and then output and display. [0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0005] The processin...

Claims

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Application Information

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IPC IPC(8): H04N17/00
CPCH04N17/004H04N17/045
Inventor 刘西富杨海龙徐卫
Owner HISENSE VISUAL TECH CO LTD
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