Pulse or digital communications – Spread spectrum
Reexamination Certificate
2006-08-15
2006-08-15
Bayard, Emmanuel (Department: 2638)
Pulse or digital communications
Spread spectrum
Reexamination Certificate
active
07092426
ABSTRACT:
A spread spectrum communications system uses long, scalable PN sequences to achieve variable communication rates. A low-complexity and scalable matched filter architecture is used to provide a large processing gain and robust recovery of multiple devices in long reach, high ambient-noise environments. The spread spectrum communications system includes a transmitter and a receiver. The receiver includes an RF receiver and a first matched filter receiving data from the RF receiver. A plurality of phase/frequency shifters receives a signal from the first matched filter. A plurality of second matched filters receive data from the plurality of phase/frequency shifters. An equalizer/decoder receives signals from the plurality of phase/frequency shifters.
REFERENCES:
patent: 4351064 (1982-09-01), Ewanus
patent: 4953178 (1990-08-01), Ishigaki
patent: 4977578 (1990-12-01), Ishigaki et al.
patent: RE33875 (1992-04-01), Tsuchiya
patent: 5136612 (1992-08-01), Bi
patent: 5319672 (1994-06-01), Sumiya et al.
patent: 5400359 (1995-03-01), Hikoso et al.
patent: 5471509 (1995-11-01), Wood et al.
patent: 5546424 (1996-08-01), Miyake
patent: 5737368 (1998-04-01), Shou et al.
patent: 5740096 (1998-04-01), Shou et al.
patent: 5790588 (1998-08-01), Fukawa et al.
patent: 5790590 (1998-08-01), Shou et al.
patent: 5815055 (1998-09-01), Eguchi et al.
patent: 5881099 (1999-03-01), Takahashi et al.
patent: 5909461 (1999-06-01), Koga et al.
patent: 5912644 (1999-06-01), Wang
patent: 5926512 (1999-07-01), Shou et al.
patent: 5974082 (1999-10-01), Ishikawa et al.
patent: 5991332 (1999-11-01), Lomp et al.
patent: 6031415 (2000-02-01), Shou et al.
patent: 6104746 (2000-08-01), Ishikawa et al.
patent: 6128332 (2000-10-01), Fukawa et al.
patent: 6154482 (2000-11-01), Inuzuka
patent: 6154487 (2000-11-01), Murai et al.
patent: 6212219 (2001-04-01), Shou et al.
patent: 6233272 (2001-05-01), Yugawa
patent: 6265807 (2001-07-01), Koga et al.
patent: 6317452 (2001-11-01), Durrant et al.
patent: 6331998 (2001-12-01), Lin et al.
patent: 6333925 (2001-12-01), Tsubouchi et al.
patent: 6356555 (2002-03-01), Rakib et al.
patent: 6434185 (2002-08-01), Struhsaker et al.
patent: 6493334 (2002-12-01), Krzymien et al.
patent: 6493376 (2002-12-01), Harms et al.
patent: 6549567 (2003-04-01), Fullerton
patent: 6556621 (2003-04-01), Richards et al.
patent: 6560270 (2003-05-01), Hischke
patent: 6560271 (2003-05-01), Han
patent: 6567017 (2003-05-01), Medlock et al.
patent: 6570865 (2003-05-01), Masui et al.
patent: 6580750 (2003-06-01), Aue
patent: 6590881 (2003-07-01), Wallace et al.
patent: RE38603 (2004-09-01), Kim et al.
patent: 6885691 (2005-04-01), Lyu
patent: 6934245 (2005-08-01), Kwak et al.
Bevan Scott
Dobson W. Kurt
Ostermiller Dirk
Prestwich Sy
Bayard Emmanuel
Madson & Austin
S5 Wireless, Inc.
LandOfFree
Matched filter for scalable spread spectrum communications... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Matched filter for scalable spread spectrum communications..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Matched filter for scalable spread spectrum communications... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3706489