Method and apparatus for obtaining reliable synchronization over

Details Method and apparatus for obtaining reliable synchronization over Method and apparatus for obtaining reliable synchronization over

1985-04-01

1987-10-20

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

371 42, 375116, H04L 100, H04L 704

Patent

active

047019395

ABSTRACT:
Method and apparatus for synchronizing a transmitter and a receiver in a synchronous serial transmission system by serially transmitting a plurality of pseudorandom, coded sync words in an interlaced fashion with corresponding bits of each word transmitted in sequence. At the receiver, received bits are first directed to a plurality of registers to undo the interlacing process and then decoded with the decoded word being compared by an autocorrelation technique to a known reference to thereby establish or reestablish synchronization between transmitter and receiver.

REFERENCES:
patent: 3576947 (1971-05-01), Kruger
patent: 3883729 (1975-05-01), de Cremiers
patent: 4131763 (1978-12-01), Herschtal
patent: 4267595 (1981-05-01), Hernandez
patent: 4397022 (1983-08-01), Weng et al.
patent: 4402080 (1983-08-01), Mueller
patent: 4501736 (1986-04-01), Dobyns
patent: 4547887 (1985-10-01), Mui
"Time Division Multiplexing", Communications Systems, Carlson, McGraw-Hill, 1975, pp. 330-331.

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