Down conversion for distortion free recovery of a phase...

Details Down conversion for distortion free recovery of a phase... Down conversion for distortion free recovery of a phase...

2011-05-10

2011-05-10

Vanderpuye, Ken N (Department: 2613)

Optical communications

Receiver

Homodyne

C398S204000, C398S209000

Reexamination Certificate

active

07941059

ABSTRACT:
In one embodiment, a down conversion receiver is provided for a phase modulated optical signal. This may include an optical coupler coupled to be capable of receiving a phase modulated signal and a local oscillator signal, and a modulator coupled to an input of the optical coupler so as to be capable of modulating one of: (1) a phase modulated signal; or (2) a local oscillator signal. A photodetector circuit is located to be capable of detecting signals coupled by the optical coupler, with a sub-band selector circuit coupled to be capable of receiving signals from the photodetector circuit. The sub-band selector circuit has an output coupled to a modulating input of the modulator.

REFERENCES:
patent: 3961262 (1976-06-01), Gassmann
patent: 4468766 (1984-08-01), Spezio
patent: 4718121 (1988-01-01), Epworth
patent: 4944025 (1990-07-01), Gehring et al.
patent: 4965858 (1990-10-01), Naito et al.
patent: 5003626 (1991-03-01), Kuwahara et al.
patent: 5007106 (1991-04-01), Kahn et al.
patent: 5023946 (1991-06-01), Yamazaki et al.
patent: 5035245 (1991-07-01), Nakamura et al.
patent: 5060312 (1991-10-01), Delavaux
patent: 5124828 (1992-06-01), Mahon
patent: 5281973 (1994-01-01), Murphy et al.
patent: 5319438 (1994-06-01), Kiasaleh
patent: 5323258 (1994-06-01), Tsushima et al.
patent: 5337056 (1994-08-01), Dax
patent: 5400167 (1995-03-01), Suemura
patent: 5412351 (1995-05-01), Nystrom et al.
patent: 5424863 (1995-06-01), Gertel
patent: 5510927 (1996-04-01), Noe
patent: 5532857 (1996-07-01), Gertel et al.
patent: 5757531 (1998-05-01), Tomesen et al.
patent: 5777778 (1998-07-01), Yao
patent: 5861781 (1999-01-01), Ashby
patent: 5926496 (1999-07-01), Ho et al.
patent: 6091535 (2000-07-01), Satoh
patent: 6094285 (2000-07-01), Wickham et al.
patent: 6233085 (2001-05-01), Johnson
patent: 6269200 (2001-07-01), Wickham et al.
patent: 6580532 (2003-06-01), Yao et al.
patent: 6580851 (2003-06-01), Vahala et al.
patent: 6850749 (2005-02-01), Soorapanth et al.
patent: 6901224 (2005-05-01), Davis
patent: 6914560 (2005-07-01), Spilker et al.
patent: 6985698 (2006-01-01), Aggarwal et al.
patent: 7103327 (2006-09-01), Pan
patent: 7200343 (2007-04-01), Ikeuchi
patent: 7266311 (2007-09-01), Haunstein et al.
patent: 7330669 (2008-02-01), Moeller
patent: 7368694 (2008-05-01), Goulas et al.
patent: 7382257 (2008-06-01), Thomas et al.
patent: 7389055 (2008-06-01), Rickard et al.
patent: 7394331 (2008-07-01), Yeung et al.
patent: 7397979 (2008-07-01), Shpantzer et al.
patent: 7406269 (2008-07-01), Becker et al.
patent: 7444085 (2008-10-01), Ikeuchi et al.
patent: 2002/0180538 (2002-12-01), Soorapanth et al.
patent: 2003/0009283 (2003-01-01), Pratt
patent: 2003/0090767 (2003-05-01), Yap et al.
patent: 2003/0092388 (2003-05-01), Aggarwal et al.
patent: 2003/0193711 (2003-10-01), Hildebrand
patent: 2004/0160661 (2004-08-01), Hurrell et al.
patent: 2004/0259518 (2004-12-01), Aktas et al.
patent: 2005/0100281 (2005-05-01), Kim et al.
patent: 2005/0111789 (2005-05-01), Hayes
patent: 2006/0045809 (2006-03-01), Shirai et al.
patent: 2006/0120733 (2006-06-01), Tucker et al.
patent: 2006/0211386 (2006-09-01), Thomas et al.
patent: 2007/0071456 (2007-03-01), Chen et al.
patent: 2009/0047030 (2009-02-01), Hoshida
USPTO Notice of Allowance Issue Fee Due, mailed Sep. 20, 2010, for U.S. Appl. No. 11/413,270 filed on Apr. 28, 2006, inventor Robert R. Hayes.
USPTO Final Office Action, mailed Nov. 25, 2009, for U.S. Appl. No. 11/413,270 filed on Apr. 28, 2006, inventor Robert R. Hayes.
USPTO Office Action, mailed Apr. 15, 2009, for U.S. Appl. No. 11/413,270 filed on Apr. 28, 2006, inventor Robert R. Hayes.

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