Pulse or digital communications – Repeaters – Testing
Patent
1987-07-21
1989-06-20
Cangialosi, Salvatore
Pulse or digital communications
Repeaters
Testing
380 34, H04B 1500
Patent
active
048415456
ABSTRACT:
A synchronous tracking device for a receiver in a direct-spread spectrum communication system in which a carrier frequency and a pseudo noise code for spreading it are coherent. A first circuit tracks the pseudo noise code in the received signal for a predetermined time after synchronous acquisition of the pseudo noise code. A second circuit tracks the pseudo noise code after the first tracking circuit stops tracking, while maintaining a locking condition achieved by the first tracking circuit.
REFERENCES:
patent: 3402265 (1968-09-01), Couvillon
patent: 3760586 (1988-07-01), Takeda
patent: 4048563 (1977-09-01), Osborne
patent: 4092601 (1978-05-01), Lee et al.
patent: 4221005 (1980-09-01), La Flame
patent: 4291409 (1981-09-01), Weinberg et al.
patent: 4538280 (1985-08-01), Mosley, Jr. et al.
patent: 4550414 (1985-10-01), Guinon et al.
patent: 4587662 (1986-05-01), Langewellpott
patent: 4656642 (1987-04-01), Apostolos et al.
patent: 4701934 (1987-10-01), Jasper
R. C. Dixon, Spread Spectrum Systems, 2d Ed. 1984, pp. 186-213 (Baseband Recovery) pp. 248-260 (Tracking).
3/21/87 Prior Art Citations in Ser. No. 823,932 filed 1/29/86, now abandoned (Same Assignee: Kyocera Corp).
Endo Akihiko
Takeda Hiroshi
Takeda Shigeki
Cangialosi Salvatore
Kyocera Corporation
LandOfFree
Synchronous tracking device for direct spread spectrum receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronous tracking device for direct spread spectrum receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronous tracking device for direct spread spectrum receiver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-531086