Extended length differentially driven analog video link
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United States of America Patent
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-
Feb 6, 2001
Issued Date -
N/A
app pub date -
Jun 3, 1996
filing date -
Jan 5, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A source of analog computer video signals is provided, which source may be a video switch providing a single set of computer video signals from one of a plurality of computers. From the source, the video signals are applied to a transmitter that includes circuitry for developing a pair of balanced video signals from each discrete video signal and applying each signal of the pair of balanced signals to respective conductors of a twisted pair of conductors. At the receiver, each balanced pair of video signals is converted back to a single-ended form. Compensation circuitry is provided for compensating for the length of twisted pair conductors between the transmitters and receivers for each video signal. Horizontal and vertical sync signals are applied via respective buffer amplifiers to another twisted pair of conductors in unbalanced relation.
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