Phase ambiguity resolution for manchester-encoded data

Pulse or digital communications – Repeaters – Testing

Patent

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Details

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

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