Automatic gain control circuit, data communication device...

Details Automatic gain control circuit, data communication device... Automatic gain control circuit, data communication device...

2005-04-19

2005-04-19

Chin, Stephen (Department: 2634)

Pulse or digital communications

Equalizers

C348S528000, C379S388030, C342S092000, C359S341410

Reexamination Certificate

active

06882684

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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