Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-10-24
2008-11-25
Tran, Khanh C (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S267000
Reexamination Certificate
active
07457385
ABSTRACT:
Two or more antennas for receiving first and second modulated signals and for providing signals to one or more demodulators for demodulating the first modulated signal and providing cross-correlated demodulated in-phase and quadrature-phase baseband signals and demodulating the second modulated signal and providing a demodulated baseband signal and a selector for selecting either the first or the second demodulated signal.In certain embodiments the demodulator demodulating the first or the second modulated signal is comprised of bit rate switchable filters and/or mis-matched filters which are mismatched to that of the filters of the modulator of the first or the second bit rate modulated signal. In some of the applications the first or the second modulated received signal is a TDM or TDMA or Orthogonal Frequency Division Multiplexed (OFDM) modulated signal and/or a CDMA or other spread spectrum modulated signal and/or Phase Shift Keying (PSK) modulation, or a Quadrature Modulation (QM), or a Frequency Modulation (FM) modulated signal. In certain implementations and applications the demodulator is used for demodulation of Gaussian Minimum Shift Keying (GMSK) modulated signals and spread spectrum modulated signals or burst operated signals.
REFERENCES:
patent: 3702476 (1972-11-01), Nathanson et al.
patent: 3944926 (1976-03-01), Feher
patent: 4030033 (1977-06-01), Bibl et al.
patent: 4229821 (1980-10-01), De Jager et al.
patent: 4339724 (1982-07-01), Feher
patent: 4350879 (1982-09-01), Feher
patent: 4531221 (1985-07-01), Chung et al.
patent: 4567602 (1986-01-01), Kato et al.
patent: 4584880 (1986-04-01), Matzuk
patent: 4644565 (1987-02-01), Seo et al.
patent: 4720839 (1988-01-01), Feher et al.
patent: 4745628 (1988-05-01), McDavid et al.
patent: 4816828 (1989-03-01), Feher
patent: 4852090 (1989-07-01), Borth
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4945549 (1990-07-01), Simon et al.
patent: 4962510 (1990-10-01), McDavid et al.
patent: 5084903 (1992-01-01), McNamara et al.
patent: 5107260 (1992-04-01), Meissner
patent: 5157686 (1992-10-01), Omura et al.
patent: 5299228 (1994-03-01), Hall
patent: 5313173 (1994-05-01), Lampe
patent: 5345439 (1994-09-01), Marston
patent: 5359521 (1994-10-01), Kyrtsos et al.
patent: 5430416 (1995-07-01), Black et al.
patent: 5479448 (1995-12-01), Seshadri
patent: 5488631 (1996-01-01), Gold et al.
patent: 5491457 (1996-02-01), Feher
patent: 5497777 (1996-03-01), Abdel-Malek et al.
patent: 5535432 (1996-07-01), Dent
patent: 5539730 (1996-07-01), Dent
patent: 5550881 (1996-08-01), Sridhar et al.
patent: 5564076 (1996-10-01), Auvray
patent: 5596333 (1997-01-01), Bruckert
patent: 5608722 (1997-03-01), Miller
patent: 5638408 (1997-06-01), Takaki
patent: 5668880 (1997-09-01), Alajajian
patent: 5719857 (1998-02-01), Heikkinen
patent: 5745480 (1998-04-01), Behtash et al.
patent: 5757858 (1998-05-01), Black et al.
patent: 5778024 (1998-07-01), McDonough
patent: 5784402 (1998-07-01), Feher
patent: 5794159 (1998-08-01), Portin
patent: 5815525 (1998-09-01), Smith et al.
patent: 5818827 (1998-10-01), Usui et al.
patent: 5842140 (1998-11-01), Dent et al.
patent: 5850392 (1998-12-01), Wang et al.
patent: 5861844 (1999-01-01), Gilmore et al.
patent: 5909435 (1999-06-01), Apelewicz
patent: 5909436 (1999-06-01), Engstrom et al.
patent: 5915207 (1999-06-01), Dao et al.
patent: 5943361 (1999-08-01), Gilhousen et al.
patent: 6008703 (1999-12-01), Perrott et al.
patent: 6014551 (2000-01-01), Pesola et al.
patent: 6067018 (2000-05-01), Skelton et al.
patent: 6075973 (2000-06-01), Greeff et al.
patent: 6088398 (2000-07-01), Wahlqvist et al.
patent: 6088585 (2000-07-01), Schmitt et al.
patent: 6101174 (2000-08-01), Langston
patent: 6101224 (2000-08-01), Lindoff et al.
patent: 6128330 (2000-10-01), Schilling
patent: 6177861 (2001-01-01), MacLellan et al.
patent: 6192070 (2001-02-01), Poon et al.
patent: 6195563 (2001-02-01), Samuels
patent: 6198777 (2001-03-01), Feher
patent: 6208875 (2001-03-01), Damgaard et al.
patent: 6216012 (2001-04-01), Jensen
patent: 6240133 (2001-05-01), Sommer et al.
patent: 6249252 (2001-06-01), Dupray
patent: 6264135 (2001-07-01), Dacosta
patent: 6269246 (2001-07-01), Rao
patent: 6282184 (2001-08-01), Lehman et al.
patent: 6298244 (2001-10-01), Boesch et al.
patent: 6332083 (2001-12-01), Shi et al.
patent: 6384860 (2002-05-01), Tullock et al.
patent: 6393294 (2002-05-01), Perez-Breva et al.
patent: 6418324 (2002-07-01), Doviak et al.
patent: 6424867 (2002-07-01), Snell et al.
patent: 6430695 (2002-08-01), Bray et al.
patent: 6445749 (2002-09-01), Feher
patent: 6470055 (2002-10-01), Feher
patent: 6522895 (2003-02-01), Montalvo
patent: 6535561 (2003-03-01), Boesch et al.
patent: 6539253 (2003-03-01), Thompson et al.
patent: 6546044 (2003-04-01), Dent
patent: 6574211 (2003-06-01), Padovani et al.
patent: 6577229 (2003-06-01), Bonneau et al.
patent: 6584090 (2003-06-01), Abdelgany et al.
patent: 6587511 (2003-07-01), Barak et al.
patent: 6591084 (2003-07-01), Chuprun et al.
patent: 6600934 (2003-07-01), Yun et al.
patent: 6611755 (2003-08-01), Coffee et al.
patent: 6630884 (2003-10-01), Shanmugham
patent: 6665348 (2003-12-01), Feher
patent: 6684078 (2004-01-01), Park
patent: 6711440 (2004-03-01), Deal et al.
patent: 6741187 (2004-05-01), Flick
patent: 6748021 (2004-06-01), Daly
patent: 6757334 (2004-06-01), Feher
patent: 6772063 (2004-08-01), Ihara et al.
patent: 6775254 (2004-08-01), Willenegger et al.
patent: 6775371 (2004-08-01), Elsey et al.
patent: 6788663 (2004-09-01), Rowitch
patent: 6788935 (2004-09-01), McKenna et al.
patent: 6788946 (2004-09-01), Winchell et al.
patent: 6807564 (2004-10-01), Zellner et al.
patent: 6823181 (2004-11-01), Kohno et al.
patent: 6834073 (2004-12-01), Miller et al.
patent: 6842617 (2005-01-01), Williams et al.
patent: 6844817 (2005-01-01), Gleine
patent: 6865395 (2005-03-01), Riley
patent: 6873836 (2005-03-01), Sorrells et al.
patent: 6876310 (2005-04-01), Dunstan
patent: 6876859 (2005-04-01), Anderson et al.
patent: 6879584 (2005-04-01), Thro et al.
patent: 6879842 (2005-04-01), King et al.
patent: 6889034 (2005-05-01), Dent
patent: 6889135 (2005-05-01), Curatolo et al.
patent: 6892131 (2005-05-01), Coffee et al.
patent: 6897952 (2005-05-01), Hagler
patent: 6901112 (2005-05-01), McCorkle et al.
patent: 6906996 (2005-06-01), Ballantyne
patent: 6907291 (2005-06-01), Snell et al.
patent: 6928101 (2005-08-01), Feher
patent: 6928121 (2005-08-01), Shearer
patent: 7035344 (2006-04-01), Feher
patent: 7057512 (2006-06-01), Stilp
patent: 7068738 (2006-06-01), Lee et al.
patent: 7079584 (2006-07-01), Feher
patent: 7103085 (2006-09-01), Dabak et al.
patent: 7106781 (2006-09-01), Agee
patent: 7110433 (2006-09-01), Feher
patent: 7133456 (2006-11-01), Feher
patent: 7133471 (2006-11-01), Feher
patent: 7228136 (2007-01-01), Myllymaki
patent: 7245668 (2007-07-01), Feher
patent: 7253717 (2007-08-01), Armstrong et al.
patent: 7260369 (2007-08-01), Feher
patent: 7280810 (2007-10-01), Feher
patent: 7356343 (2008-04-01), Feher
patent: 7359449 (2008-04-01), Feher
patent: 2002/0085641 (2002-07-01), Baum
patent: 2003/0134664 (2003-07-01), Zancewicz
patent: 2003/0147471 (2003-08-01), Simon et al.
patent: 2005/0202809 (2005-09-01), Lappetelainen et al.
patent: 2005/0232135 (2005-10-01), Mukai et al.
patent: 2006/0050625 (2006-03-01), Krasner
patent: 2006/0072646 (2006-04-01), Feher
patent: 2006/0087432 (2006-04-01), Corbett
patent: 2007/0053471 (2007-03-01), Feher
patent: 2007/0053472 (2007-03-01), Feher
patent: 2007/0202890 (2007-08-01), Feher
patent: 2007/0265018 (2007-11-01), Feher
patent: 2008/0056399 (2008-03-01), Feher
patent: WO 95/23485 (1995-08-01), None
patent: WO 97/30523 (1997-08-01), None
patent: WO 97/30524 (1997-08-01), None
patent: WO 99/09721 (1999-02-01), None
patent: PCT/US99/17995 (1999-08-01), None
patent: PCT/US99/19909 (1999-08-01), None
patent: PCT/US2005/035931 (2005-10-01), None
patent: US06/000486 (2006-07-01), None
U.S. Appl. No. 10/205,478, filed Jul. 24, 2002, Feher, K.
U.S. Appl. No. 10/831,562, filed Apr. 23, 2004, Feher, K.
U.S. Appl. No. 10/831,724, filed Apr. 24, 2004, Feher, K.
U.S. Appl. No. 0
Procopio Cory Hargreaves & Savitch LLP
Tran Khanh C
Wi-Lan Inc.
LandOfFree
Antenna systems, receivers and demodulators for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antenna systems, receivers and demodulators for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna systems, receivers and demodulators for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4033861