Differential signaling system and flat panel display with the same
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United States of America Patent
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Feb 14, 2012
Grant Date -
Oct 2, 2008
app pub date -
Apr 1, 2008
filing date -
Apr 2, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A differential signaling system, wherein a first wiring and a second wiring are coupled between a sending end and a receiving end as a differential signal line. A termination resistor is coupled between the first wiring and the second wiring in the receiving end side. A test circuit is coupled to the termination resistor in parallel, and amplifies and detects a variation of a differential impedance due to the differential signal line. The test circuit includes: a differential test amplifier for amplifying a variation in the differential impedance of the first wiring or the second wiring; a switching unit installed at an input terminal of the differential test amplifier for controlling an operation of the differential test amplifier; and a peak detector for converting an output signal of the differential test amplifier into a direct current component.
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Cited Art Landscape
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