Sequence synchronisation

Details Sequence synchronisation Sequence synchronisation

1990-05-01

1993-08-17

Kuntz, Curtis

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

380 43, 380 44, 375116, 371 471, H04L 700

Patent

active

052375935

ABSTRACT:
A first (receiver), for example, pseudo random binary sequence (PRBS) generator (6) is synchronized with a second identical PRBS generator (2) at a tramsitter by adding a PRBS (u(x)) to a data stream (w(x)). The data stream includes a known value at periodic intervals. The received data is framed (5) and thus the position of the known data values determined. The received data is sampled at these positions to produce a sequence of samples (s(x)) comprising a sampled version of the transmitter PRBS. The phase of the transmitter generator (2) is determined for the samples and the phase of the receiver generator (6) adjusted to correspond. (FIG. 1). Implementation with sequence generators other than binary sequence generators are also discussed.

REFERENCES:
patent: 3648237 (1972-03-01), Freu, Jr. et al.
patent: 3753228 (1973-08-01), Nickolas et al.
patent: 3914740 (1975-10-01), Han
patent: 4383322 (1983-05-01), Halpein
patent: 4736424 (1988-04-01), Busby
patent: 4771463 (1988-09-01), Beeman
patent: 4790013 (1988-12-01), Kage
patent: 5003552 (1991-03-01), Mower

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