Pulse or digital communications – Repeaters – Testing
Patent
1991-07-31
1993-06-29
Kuntz, Curtis
Pulse or digital communications
Repeaters
Testing
375110, 341 70, 328127, 328201, 328207, H04L 2722
Patent
active
052241262
ABSTRACT:
Regeneration of a Manchester coded data stream is improved by a system for distinguishing which data signal transitions are bit center and which are bit end transitions. Using a monostable flip-flop with associated phasing and timing circuits including a feedback circuit from the clock output itself, the edge transitions are masked to allow only the center transitions to be passed and then used to create the timing pulses. A system for avoiding lockup of the apparatus on an erroneous initial pulse is also described.
REFERENCES:
patent: 3491202 (1970-01-01), Bailey et al.
patent: 4733404 (1988-03-01), Ostoich
Myers John H.
Von Thaer Lewis F.
Wissell Phillip A.
AT&T Bell Laboratories
Bocure Tesfaldet
Graves Charles E.
Kuntz Curtis
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