NRZ Digital data recovery

Details NRZ Digital data recovery NRZ Digital data recovery

1981-06-05

1983-05-24

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

375120, 360 51, 307269, H04L 708

Patent

active

043853960

ABSTRACT:
A clock signal required for demodulation of a received NRZ digital data stream is generated by comparing transition data for the received NRZ digital data stream to a clock signal which has a period equal to the bit period of the NRZ digital data stream. The results of the comparison is utilized to shift the clock signal in such a manner that the clock signal will be synchronized with the received NRZ digital data stream so as to provide a clock signal which may be utilized to demodulate the received NRZ digital data.

REFERENCES:
patent: 3389337 (1968-06-01), Hubbard et al.
patent: 3778550 (1973-12-01), David et al.
patent: 3865981 (1975-02-01), Welch et al.
patent: 3992581 (1976-11-01), Davis
patent: 4029905 (1977-06-01), Abraham
patent: 4078157 (1978-03-01), Lender et al.
patent: 4280099 (1981-07-01), Rattlingourd

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