Automatic gain control circuit, data communication device and automatic gain control method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 19, 2005
Grant Date -
Aug 23, 2001
app pub date -
Jan 10, 2001
filing date -
Jan 11, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic gain control circuit includes a first portion which calculates a first error amount, and a second portion which calculates a second error amount. Both calculated error amount is sent to a determination module. Further, an integrator integrates an error amount, a difference between a power of an input signal and an average power of an eye pattern for example. The determination determines whether the integrated error amount exceeds a predetermined value or not, and output either of the first error amount and the second error amount based on the determination.
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