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Automatic testing device for two VGA interfaces

A technology of automatic test device and VGA interface, which is applied in the direction of measuring device, measuring electricity, measuring electric variables, etc., and can solve the problem of high equipment cost

Inactive Publication Date: 2015-03-25
WARECONN TECH SERVICE (TIANJIN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since each VGA interface requires a monitor, the equipment cost is high

Method used

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  • Automatic testing device for two VGA interfaces
  • Automatic testing device for two VGA interfaces
  • Automatic testing device for two VGA interfaces

Examples

Experimental program
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Embodiment Construction

[0011] Such as Figure 1-4 As shown, a kind of dual VGA interface automatic test device 100 provided by the embodiment of the present invention is used to connect between two VGA test interfaces 201 installed on a motherboard 200 and a VGA input interface 301 installed on a display 300 . The VGA interface is a D-type interface with 15 pinholes in total, divided into three rows, five in each row. The VGA interface includes 3 RGB color component signal terminals, 2 scan synchronization signal terminals, 2 address signal terminals, 2 bus signal terminals, and 5 GND signal terminals.

[0012] The dual VGA interface automatic test device 100 includes a switching module 10 and a control module 20 connected to the switching module 10 .

[0013] The switching module 10 includes an RGB signal unit 11 , a scan and control signal unit 12 and an address signal unit 13 .

[0014] The RGB signal unit 11 includes a first set of RGB signal input terminals 111 , a second set of RGB signal i...

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PUM

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Abstract

The invention provides an automatic testing device for two VGA interfaces. The automatic testing device comprises a switching module and a control module. The switching module comprises an RGB signal unit, a scanning and control signal unit and an address signal unit. The RGB signal unit comprises a first group of RGB signal input ends, a second group of RGB signal input ends and a group of RGB signal output ends. The scanning and control signal unit comprises a first group of scanning and control signal input ends, a second group of scanning and control signal input ends and a group of scanning and control signal output ends. The address signal unit comprises a first group of address signal input ends, a second group of address signal input ends and a group of address signal output ends. The control module is connected with the RGB signal unit, the scanning and control signal unit and the address signal unit. Since two groups of input ends and one group of output ends are arranged and the two groups of input ends are controlled to be connected to the output ends respectively, testing of the two VGA interfaces connected with the two groups of input ends respectively can be realized just by installing one displayer at the output ends.

Description

technical field [0001] The invention relates to a test device, in particular to a dual video graphics array (video graphics array, VGA) interface automatic test device. Background technique [0002] Now more and more electronic products are provided with two VGA interfaces. In order to ensure the quality, it is necessary to test the two VGA interfaces. During the test, two monitors need to be provided and connected to the two VGA interfaces respectively to determine whether the digital video can be transmitted from the two VGA interfaces to the corresponding monitors. Since each VGA interface requires a monitor, the equipment cost is high. Contents of the invention [0003] In view of this, it is necessary to provide an automatic test device with dual VGA interfaces that can reduce costs. [0004] An automatic testing device with dual VGA interfaces, which includes a switch module and a control module. The switching module includes an RGB signal unit, a scan and control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
CPCG09G5/006G09G3/006
Inventor 李圣义
Owner WARECONN TECH SERVICE (TIANJIN) CO LTD