Pulse or digital communications – Repeaters – Testing
Patent
1983-10-31
1986-03-18
Griffin, Robert L.
Pulse or digital communications
Repeaters
Testing
333 18, H03H 730, H03H 740
Patent
active
045773289
ABSTRACT:
Receipt of a training signal by a circuit wherein a demodulated data sequence is compared with a corresponding pre-recorded sequence and an impulse produced upon coincidence therebetween, is acknowledged by two consecutive signals occuring at a time interval corresponding to the period of the data sequence.
REFERENCES:
patent: 3715665 (1973-02-01), Chang
patent: 3978407 (1976-08-01), Forney, Jr. et al.
patent: 4004226 (1977-01-01), Qureshi et al.
patent: 4027250 (1977-05-01), Lang
Chin Stephen
Griffin Robert L.
NEC Corporation
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