Method and device for acquiring the initial phase of the clock i

Details Method and device for acquiring the initial phase of the clock i Method and device for acquiring the initial phase of the clock i

1979-02-02

1980-10-07

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

375118, 364726, H04L 706

Patent

active

042272521

ABSTRACT:
In a synchronous data transmission system wherein data transmission is achieved by modulating a carrier wave of frequency f.sub.c at the signaling rate 1/T, a method for determining the initial phase value by which the phase of the receiver clock is to be varied during an initial synchronization operation during which a synchronization signal, the spectrum of which includes two distinct lines at frequencies f.sub.1 =f.sub.c -1/2T and f.sub.2 =f.sub.c +1/2T, is transmitted comprising the steps of:

REFERENCES:
patent: 3395391 (1968-07-01), Goroa et al.
patent: 4034352 (1977-07-01), Hotchkiss
patent: 4084251 (1978-04-01), Gills, Jr.
patent: 4092723 (1978-05-01), Picquendar et al.

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