Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1984-11-23
1986-12-02
Bookbinder, Marc E.
Pulse or digital communications
Spread spectrum
Direct sequence
307511, 328151, 328155, 328162, 375101, 375119, H04L 702
Patent
active
046270809
ABSTRACT:
An adaptive timing technique is disclosed for adjusting the sampling times of a received digital signal for fewer regeneration errors. In accordance with the disclosed technique, a sequence of digital signal samples is formed and an error signal is generated by comparing a selected sample in the sequence to a threshold. The sampling times of subsequently formed samples are then altered in response to the sample sequence and error signal only when the sample values in the sequence are successively increasing or decreasing.
REFERENCES:
patent: 3404232 (1968-10-01), Burford
patent: 3534273 (1970-10-01), Thomas
patent: 4355284 (1982-10-01), Acker
patent: 4376309 (1983-03-01), Fenderson et al.
AT&T Bell Laboratories
Bookbinder Marc E.
Padnes David R.
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