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Video signal testing device

A testing device and video signal technology, applied in television, image communication, instruments, etc., can solve the problems of final product color difference, test equipment aging, increase test man-hours and test equipment, etc.

Inactive Publication Date: 2014-10-01
MITAC COMP (SHUN DE) LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the product function testing stage, it is necessary to greatly increase the testing man-hours and testing equipment (mainly monitors) in response to the number of interfaces.
Often due to the unavoidable distraction of the operator and the aging of the test equipment, there will be defects such as color difference in the final product

Method used

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Embodiment Construction

[0014] The invention provides a video signal testing device, which not only realizes precise measurement and automatic intelligent detection of various high-frequency video output signals, but also has a fool-proof function and is widely used. Different types of video interfaces can be tested through adapters. Greatly improved production efficiency.

[0015] Wherein, the video signal testing device mainly includes a signal acquisition module 101 , an operational amplifier circuit module 102 , an analog-to-digital conversion circuit module 103 , a trigger module 104 , a signal processing module 105 , a central controller 106 and a display module 107 .

[0016] In addition, the signal acquisition module 101 is used to electrically connect with the video interface to be tested (not shown in the figure), so as to sample the signal after matching the parameters of the analog / digital signal transmitted through the video interface. The capture module 101 can be electrically connected...

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Abstract

The invention provides a video signal testing device. The video signal testing device comprises a signal capturing module for sampling an analog / digital signal transmitted through a video interface after parameter matching of the signal, an operational amplifier circuit module for amplifying the sampled analog / digital signal, an analog-to-digital conversion circuit module for converting an amplified analog signal into a digital signal, a trigger module for transmitting the sampled digital signal to a signal processing module through the analog-to-digital conversion circuit module after the sampled digital signal is amplified by the operational amplifier circuit module, the signal processing module which is electrically connected with the trigger module and the analog-to-digital conversion circuit module to process and analyze the digital signal transmitted by the trigger module and the analog-to-digital conversion circuit module, and a central controller of which one end is connected with the signal processing module and the other end is connected with a display module to drive the display module to display the analysis result of the signal processing module. By adopting the video signal testing device, accurate measurement of a plurality of high-frequency video output signals is realized, and the production efficiency is increased.

Description

technical field [0001] The invention relates to a test device, in particular to a video signal test device. Background technique [0002] At present, the video interfaces of computer motherboards are changing with each passing day, mainly including VGA, DVI, BNC, HDMI, BNC and other different interface types to meet the needs of different users. Users require that there must be enough interfaces on the motherboard, or the more different types of video interfaces, the better. [0003] In the product function testing stage, it is necessary to greatly increase the testing man-hours and testing equipment (mainly monitors) in response to the number of interfaces. Often due to the unavoidable distraction of the operator and the aging of the test equipment, there will be defects such as color difference in the final product. Contents of the invention [0004] In view of the above problems, the present invention provides a video signal testing device. [0005] In order to achie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00G09G3/00G09G5/00
Inventor 黎全纲欧阳培英
Owner MITAC COMP (SHUN DE) LTD
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