Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1987-02-10
1989-01-31
Griffin, Robert L.
Pulse or digital communications
Spread spectrum
Direct sequence
370106, 3408252, H04L 700
Patent
active
048021920
ABSTRACT:
An original code series containing a synchronizing code is divided into code series, n in number so as to reduce an operation rate to 1
(n is a positive integer). The detection of a synchronizing pattern is conducted on the basis of a fact that an original synchronizing pattern is transformed into any of patterns of n kinds based on the phase of division.
REFERENCES:
patent: 3555195 (1971-01-01), Rester
patent: 3928726 (1975-12-01), Colton et al.
patent: 4370648 (1983-01-01), Wagner
patent: 4414677 (1983-11-01), Ive et al.
patent: 4727558 (1988-02-01), Hall
Eto Yoshizumi
Kanada Hidehiro
Takeshita Kazuyuki
Umemoto Masuo
Chin Stephen
Griffin Robert L.
Hitachi , Ltd.
Hitachi Denshi Kabushiki Kaisha
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