Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1990-11-19
1992-08-11
Safourek, Benedict V.
Pulse or digital communications
Spread spectrum
Direct sequence
307602, 307603, 375118, H04L 7027
Patent
active
051386330
ABSTRACT:
This invention is a timing recovery arrangement which adaptively retimes and regenerates a received stream of data pulse signals. The received stream of data pulse signals are selectively simultaneously sampled at two or more locations for the presence or absence of a data pulse signal. A signal representative of the detection of a pulse signal is generated for each location. The signals for the locations sampled are combined to generate a control signal which is used to selectively controllably change the locations where the samples are taken. Changing the locations where the samples are taken continues until the signal for the first location sampled is substantially equal to the signal for the second location sampled. In accordance with an embodiment of the invention, the control signals obtained, when two locations sampled, are sampled are generated by integrating the signals from the respective locations sampled to generate a first control signal and a second control signal.
REFERENCES:
patent: 3755736 (1973-08-01), Kaneko et al.
patent: 3911368 (1975-10-01), Tarczy-Hornoch
patent: 3986126 (1976-10-01), Gindi et al.
patent: 4245345 (1981-01-01), Gitlin et al.
patent: 4618787 (1986-10-01), Jacksier et al.
patent: 4715049 (1987-12-01), Andrews et al.
AT&T Bell Laboratories
Safourek Benedict V.
Weiss E.
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