Pulse or digital communications – Repeaters – Testing
Patent
1996-06-07
2000-05-09
Ngo, Ricky
Pulse or digital communications
Repeaters
Testing
H04B 1500, H04K 100, H04L 2730
Patent
active
060613882
ABSTRACT:
A method and apparatus for implementing a spread spectrum communication system of the "transmitted reference" type provides both multipath and interference protection with little complexity. Need for a local reference is avoided by transmitting a reference that the receiver can use to perform despreading. In general, the transmitted reference system sends both a message signal and a reference signal to the receiver. The message signal contains the information to be communicated, which has been spread through multiplication with a wide band "spreading waveform". The reference signal consists of the spreading waveform itself which the receiver call use to despread the message signal and recover the information.
REFERENCES:
patent: 4112372 (1978-09-01), Holmes et al.
patent: 4122393 (1978-10-01), Gordy et al.
patent: 4475219 (1984-10-01), Puckette
patent: 4494238 (1985-01-01), Groth, Jr.
patent: 4583231 (1986-04-01), Puckette
patent: 4607375 (1986-08-01), Lee
patent: 4841527 (1989-06-01), Raychaudhuri et al.
patent: 4888788 (1989-12-01), Teranishi et al
patent: 4972431 (1990-11-01), Keegan
patent: 4977578 (1990-12-01), Ishigaki et al.
patent: 5166953 (1992-11-01), Hershey et al.
patent: 5235612 (1993-08-01), Stilwell et al.
patent: 5301206 (1994-04-01), Ishigaki et al.
patent: 5345245 (1994-09-01), Ishikawa et al.
patent: 5420593 (1995-05-01), Niles
patent: 5433111 (1995-07-01), Hershey et al.
patent: 5465269 (1995-11-01), Schaffner et al.
patent: 5546424 (1996-08-01), Miyake
patent: 5675498 (1997-10-01), White
Fergus Ross John Anderson
Orlowski, Jr. Eugene Joseph
Saulnier Gary Jude
Corrielus Jean B
General Electric Company
Ngo Ricky
Snyder Marvin
Stoner Douglas E.
LandOfFree
Spread spectrum communication system with frequency-separated me does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spread spectrum communication system with frequency-separated me, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum communication system with frequency-separated me will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1072240