Video graphics array interface tester

Details Video graphics array interface tester Video graphics array interface tester

2007-09-26

2010-11-30

Tran, Henry N (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S011000, C345S698000

Reexamination Certificate

active

07843444

ABSTRACT:
An exemplary video graphics array interface tester includes a VGA connector being configured to couple to a VGA interface to be tested and having a plurality of signal pins to output different VGA signals; a load circuit connected to the signal pins of the VGA connector for impedance matching; a selection switch having a plurality of throws corresponding to the signal pins of the VGA connector connected to the signal pins of the VGA connector respectively, and a pole; and a test port connected to the pole of the selection switch for selectively testing one of the VGA signals via selection of the selection switch. Using this tester to detect the VGA interface can guarantee quality and improve efficiency of VGA test.

REFERENCES:
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patent: 6323828 (2001-11-01), Perez
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patent: 6819114 (2004-11-01), Cheng et al.
patent: 7696956 (2010-04-01), Deng et al.
patent: 2862190 (2007-01-01), None
patent: 1963775 (2007-05-01), None

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