Optical receiver device

Details Optical receiver device Optical receiver device

2005-12-21

2010-06-08

Liu, Li (Department: 2613)

Optical communications

Receiver

Including postcompensation

C398S202000, C398S212000, C398S214000

Reexamination Certificate

active

07734196

ABSTRACT:
A DQPSK receiver extracts first and second phase modulation components from an input optical signal, and respectively converts the extracted components into the first and second data signals. The DQPSK receiver extracts a clock signal from one of the data signals, and produces an inverted clock signal by inverting the extracted clock signal. Then, the DQPSK receiver latches the first data signal by using the extracted clock signal or the inverted clock signal, and latches the second data signal by using the extracted clock signal.

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Japanese Office Action issued in connection with corresponding JP Application No. 2005-278948. Mailed by the JPO on Oct. 7, 2008. Partial English translation.

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