Method and device for receiving OPFDM-DQPSK signal

Pulse or digital communications – Receivers – Angle modulation

Reexamination Certificate

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Details

C375S340000, C375S283000, C398S152000, C398S184000, C398S205000, C398S115000, C398S204000

Reexamination Certificate

active

08064544

ABSTRACT:
In the field of communication and transmission, a method and a device for receiving an OPFDM-DQPSK signal are provided. The device includes a power splitter, adapted to split the OPFDM-DQPSK signal into two beams of signals; a polarization beam splitter (PBS), adapted to splitting one of the two beams of signals into a first signal and a second signal; a demultiplexer (Demux), adapted to demultiplex the other beam of signal to obtain a third signal and a fourth signal; two delayers, adapted to delay the third signal and the fourth signal respectively; a first frequency-mixing receiving module, adapted to perform frequency-mixing receiving on the first signal and the delayed third signal; a second frequency-mixing receiving module, adapted to perform frequency-mixing receiving on the second signal and the delayed fourth signal; and a decision recovery module, adapted to recover four logical sequences by performing decision on the four electrical signals.

REFERENCES:
patent: 7609982 (2009-10-01), Ikeuchi
patent: 2006/0013597 (2006-01-01), Crivelli et al.
patent: 2008/0031633 (2008-02-01), Hoshida et al.
patent: 2008/0232816 (2008-09-01), Hoshida et al.
patent: 2009/0142075 (2009-06-01), Akiyama et al.
patent: 2010/0021166 (2010-01-01), Way
patent: WO 03/028252 (2003-04-01), None
European Patent Office, European Search Report for European Application No. 09175229.5 (Feb. 10, 2010).
Zhu of Huawei Technologies Co., Ltd. of P.R. China, “Proposal of OPFDM-RZ-DQPSK 40G Modulation Format Consideration,” Study Group: 15, Working Party: 2 (Jun. 23-27, 2008).

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