Method for promoting activation of a phase-locked loop and corre

Details Method for promoting activation of a phase-locked loop and corre Method for promoting activation of a phase-locked loop and corre

1994-04-20

1996-04-09

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327147, 375376, 331 34, 331 1A, H03L 7199

Patent

active

055065309

ABSTRACT:
The phase-locked loop includes means (3) for generating an internal signal (SIN) drawn from the output signal of the voltage-controlled oscillator (2), and a phase comparator (4) able to compare the phase of the internal signal (SIN) with that of an external signal received (SSY), and the output of which is looped back onto the voltage-controlled oscillator (2). It further comprises a device (6) accelerating the synchronization of the internal and external signals, including processing means able to receive, from the phase comparator (4), a predetermined indication representative of the non-coincidence of the internal and external signals, and, in response to this predetermined indication, to deliver control information in response to which the generation means (3) modify the phase of the internal signal in order to force the latter substantially into phase with the external signal (SSY).

REFERENCES:
patent: 4309662 (1982-01-01), Baudoux
patent: 4812783 (1989-03-01), Honjo et al.
patent: 4843469 (1989-06-01), Boyce
patent: 5248904 (1993-09-01), Miyazaki et al.
patent: 5257294 (1993-10-01), Pinto et al.
patent: 5304954 (1994-04-01), Saito et al.

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