Pulse or digital communications – Repeaters – Testing
Patent
1983-08-29
1986-01-28
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
329104, H04L 2722
Patent
active
045676046
ABSTRACT:
A receiver for a biphase-L signal A is described which includes a line-up detector 14 generating a circuit initialization pulse. A preamble detector 40 is responsive to a preamble of the incoming biphase-L signal A. A sampling signal generator 17 is responsive to the signal from the preamble detector 40, to the biphase-L signal A and to a second control signal. The output C of a time delay line 34 supplies the second control signal, and the input to the delay line 34 is supplied by the sampling signal generator 17. The output data signal H is generated by a flip-flop 54 which samples the biphase-L signal A at times determined by the output G of the sampling signal generator 17.
REFERENCES:
patent: 3859631 (1975-01-01), Holmes et al.
patent: 3938082 (1976-02-01), Schowe
patent: 3949394 (1976-04-01), Kennedy
patent: 3994014 (1976-11-01), Burgiss
patent: 4302845 (1981-11-01), McClaughry et al.
patent: 4313206 (1982-01-01), Woodward
patent: 4449119 (1984-05-01), Hanna et al.
AT&T Teletype Corporation
Safourek Benedict V.
Serp W. K.
Tirva A. A.
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