Optical receiver

Details Optical receiver Optical receiver

2011-03-22

2011-03-22

Vanderpuye, Ken N (Department: 2613)

Optical communications

Receiver

C398S206000, C398S209000, C398S038000, C398S025000

Reexamination Certificate

active

07912380

ABSTRACT:
The present invention provides an optical receiver able to monitor the level of the optical input signal in accurate even when the level is quite small. The optical receiver comprises a photodiode to generate a photocurrent Ipd, a current mirror circuit to reflect the photocurrent into a mirrored current Imon, a current-to-voltage converter to convert the mirrored current Imon to a voltage signal, switch to connect/cut the current mirror circuit with the current-to-voltage converter, and a correction unit for subtracting a signal when the switch is connected from a signal when the switch is cut.

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Notification of Reasons of Rejection issued on Sep. 26, 2008 with English translation.
Japanese Office Action issued Feb. 12, 2010 for priority Japanese Application No. 2006-137421 w/English language translation.

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