Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1984-03-15
1986-08-05
Griffin, Robert L.
Pulse or digital communications
Spread spectrum
Direct sequence
360 371, 307247R, 307595, H04L 702, H04L 706
Patent
active
046047565
ABSTRACT:
A device for recovery of a synchronized clock signal from a signal sequence, in particular a random sequence, clocked at a specific frequency. The device includes a clock generator which by itself generates clock signals whose phase and frequency are tuned to the specific phase and clock frequency of the signal sequence, and which is triggerable externally by specific signals derived from the signal sequence in order to synchronize its phase and frequency with the phase and clock frequency of the signal sequence. The clock generator includes preferably a monostable multivibrator whose output signals are fed back delayed to the input serving as trigger input.
REFERENCES:
patent: 3196358 (1965-07-01), Bagley
patent: 3581010 (1971-05-01), Kobayashi
patent: 4001611 (1977-01-01), Maruyama et al.
patent: 4185273 (1980-01-01), Gowan
patent: 4282600 (1981-08-01), Zemanek
patent: 4313206 (1982-01-01), Woodward
patent: 4361897 (1982-11-01), Kloeber
patent: 4426714 (1984-01-01), Ashida
Moustakas Steven
Witte Hans-Hermann
Chin Stephen
Griffin Robert L.
Jackson Thomas H.
Siemens Aktiengesellschaft
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