Pulse or digital communications – Transmitters – Quadrature amplitude modulation
Reexamination Certificate
2005-06-20
2010-06-22
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Transmitters
Quadrature amplitude modulation
C375S300000, C375S303000, C375S308000, C375S230000, C375S329000, C375S334000
Reexamination Certificate
active
07742542
ABSTRACT:
A method for transmitting a base band digital data signal having a bit period and a first bandwidth, comprising providing a carrier wave having a carrier amplitude and a carrier frequency, and synchronously modulating both the carrier amplitude and carrier frequency with the base band digital signal, so as to reduce the bandwidth of the modulated carrier wave below the bandwidth of the base band signal. A method for transmitting a base band digital data signal having a bit period and a first bandwidth, comprising providing a carrier wave having a carrier phase and a carrier frequency, and synchronously modulating both the carrier phase and carrier frequency with the base band digital signal, so as to reduce the bandwidth of the modulated carrier wave below the bandwidth of the base band signal.
REFERENCES:
patent: 3324295 (1967-06-01), Harris
patent: 3999105 (1976-12-01), Archey et al.
patent: 4038600 (1977-07-01), Thomas et al.
patent: 4561119 (1985-12-01), Epworth
patent: 4805235 (1989-02-01), Henmi
patent: 4841519 (1989-06-01), Nishio
patent: 5293545 (1994-03-01), Huber
patent: 5325378 (1994-06-01), Zorabedian
patent: 5371625 (1994-12-01), Wedding et al.
patent: 5412474 (1995-05-01), Reasenberg et al.
patent: 5416629 (1995-05-01), Huber
patent: 5465264 (1995-11-01), Buhler et al.
patent: 5477368 (1995-12-01), Eskildsen et al.
patent: 5550667 (1996-08-01), Krimmel et al.
patent: 5592327 (1997-01-01), Gabl et al.
patent: 5737104 (1998-04-01), Lee et al.
patent: 5777773 (1998-07-01), Epworth et al.
patent: 5805235 (1998-09-01), Bedard
patent: 5856980 (1999-01-01), Doyle
patent: 5920416 (1999-07-01), Beylat et al.
patent: 5953139 (1999-09-01), Nemecek et al.
patent: 5974209 (1999-10-01), Cho et al.
patent: 6018275 (2000-01-01), Perrett et al.
patent: 6081361 (2000-06-01), Adams et al.
patent: 6096496 (2000-08-01), Frankel
patent: 6104851 (2000-08-01), Mahgerefteh
patent: 6115403 (2000-09-01), Brenner et al.
patent: 6222861 (2001-04-01), Kuo et al.
patent: 6271959 (2001-08-01), Kim et al.
patent: 6298186 (2001-10-01), He
patent: 6331991 (2001-12-01), Mahgerefteh
patent: 6359716 (2002-03-01), Taylor
patent: 6473214 (2002-10-01), Roberts et al.
patent: 6506342 (2003-01-01), Frankel
patent: 6563623 (2003-05-01), Penninckx et al.
patent: 6577013 (2003-06-01), Glenn et al.
patent: 6618513 (2003-09-01), Evankow, Jr.
patent: 6654564 (2003-11-01), Colbourne et al.
patent: 6665351 (2003-12-01), Hedberg
patent: 6687278 (2004-02-01), Mason et al.
patent: 6748133 (2004-06-01), Liu et al.
patent: 6778307 (2004-08-01), Clark
patent: 6810047 (2004-10-01), Oh et al.
patent: 6834134 (2004-12-01), Brennan et al.
patent: 6836487 (2004-12-01), Farmer et al.
patent: 6847758 (2005-01-01), Watanabe
patent: 6947206 (2005-09-01), Tsadka et al.
patent: 6963685 (2005-11-01), Mahgerefteh et al.
patent: 7013090 (2006-03-01), Adachi et al.
patent: 7054538 (2006-05-01), Mahgerefteh et al.
patent: 7076170 (2006-07-01), Choa
patent: 7123846 (2006-10-01), Tateyama et al.
patent: 7263291 (2007-08-01), Mahgerefteh et al.
patent: 7280721 (2007-10-01), McCallion et al.
patent: 2002/0154372 (2002-10-01), Chung et al.
patent: 2002/0159490 (2002-10-01), Karwacki
patent: 2002/0176659 (2002-11-01), Lei et al.
patent: 2003/0002120 (2003-01-01), Choa
patent: 2003/0067952 (2003-04-01), Tsukiji et al.
patent: 2003/0099018 (2003-05-01), Singh et al.
patent: 2003/0147114 (2003-08-01), Kang et al.
patent: 2003/0193974 (2003-10-01), Frankel et al.
patent: 2004/0008933 (2004-01-01), Mahgerefteh et al.
patent: 2004/0008937 (2004-01-01), Mahgerefteh et al.
patent: 2004/0036943 (2004-02-01), Freund et al.
patent: 2004/0076199 (2004-04-01), Wipiejewski et al.
patent: 2004/0096221 (2004-05-01), Mahgerefteh et al.
patent: 2004/0218890 (2004-11-01), Mahgerefteh et al.
patent: 2005/0100345 (2005-05-01), Welch et al.
patent: 2005/0111852 (2005-05-01), Mahgerefteh et al.
patent: 2005/0175356 (2005-08-01), McCallion et al.
patent: 2005/0206989 (2005-09-01), Marsh
patent: 2005/0271394 (2005-12-01), Whiteaway et al.
patent: 2005/0286829 (2005-12-01), Mahgerefteh et al.
patent: 2006/0002718 (2006-01-01), Matsui et al.
patent: 2006/0018666 (2006-01-01), Matsui et al.
patent: 2006/0029358 (2006-02-01), Mahgerefteh et al.
patent: 2006/0029396 (2006-02-01), Mahgerefteh et al.
patent: 2006/0029397 (2006-02-01), Mahgerefteh et al.
patent: 2006/0228120 (2006-10-01), McCallion et al.
patent: 2006/0233556 (2006-10-01), Mahgerefteh et al.
patent: 2006/0274993 (2006-12-01), Mahgerefteh et al.
patent: 2107147 (1983-04-01), None
patent: 9905804 (1999-02-01), None
patent: 0104999 (2001-01-01), None
patent: 03005512 (2003-01-01), None
Chang-Hang Lee et al., Transmission of Directly Modulated 2.5-Gb/s Signals Over 250-km of Nondispersion-Shifted Fiber by Using a Spectral Filtering Method, IEEE Photonics Technology Letters, Dec. 1996, pp. 1725-1727, vol. 8, No. 12.
Corvini et al., Computer Simulation of High-Bit-Rate Optical Fiber Transmission Using Single-Frequency Lasers, Journal of Lightwave Technology, Nov. 1987, 1591-1595, vol. LT-5, No. 11.
Prokais, “Digital Communications”, 2001, 202-207, Fourth Edition, McGraw Hill, New York.
U.S. Appl. No. 11/068,032, Mail Date Feb. 11, 2008, Restriction Requirement.
U.S. Appl. No. 11/068,032, Mail Date Jun. 16, 2008, Office Action.
U.S. Appl. No. 11/068,032, Mail Date Dec. 16, 2008, Notice of Allowance.
U.S. Appl. No. 11/068,032, Mail Date Feb. 25, 2009, Notice of Allowance.
Mahgerefteh Daniel
Tayebati Parviz
Zhang Xueyan
Finisar Corporation
Liu Shuwang
Timory Kabir A
Workman Nydegger
LandOfFree
Phase correlated quadrature amplitude modulation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase correlated quadrature amplitude modulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase correlated quadrature amplitude modulation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4250700