Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1991-02-05
1995-11-07
Chin, Stephen
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
375375, H03D 324
Patent
active
054652774
ABSTRACT:
The invention relates to the synchronization of a local clock (VCO) with a first clock frequency (Fo) equal to that of time-spaced digital data bursts read from a record carrier which also carries a continuous digital signal (H) of a second clock frequency (F). In accordance with the invention, locking to the desired frequency is assured by a frequency comparator (FD) which detects the frequency shift between the signal (S) of the local clock (VCO) and the signal of the second clock frequency (F). The device also comprises a phase-locked loop (PD) which provides phase locking once the synchronization has locked to the correct frequency.
REFERENCES:
patent: 4155050 (1979-05-01), Nichols
patent: 4357707 (1982-11-01), DeLury
patent: 4594516 (1986-12-01), Tokumitsu
patent: 4626913 (1986-02-01), Gurumurthy
patent: 4628270 (1986-12-01), Roberts
patent: 4694259 (1987-09-01), Carickoff et al.
patent: 4787097 (1988-11-01), Rizzo
patent: 4803705 (1989-02-01), Gillingham et al.
patent: 4808884 (1989-02-01), Hull et al.
patent: 4814719 (1989-03-01), Guyer
Schepers et al "An Integrated Multinorm Receiver" Symposium Record Joint Session CBroadcast & TV Symposium, Montreax pp. 181-204 11-17 Jun. 1987.
Hirashima et al "A Circuit Design of Sampling Clock Regeneratation" IEEE Transactions on Consumer Electronics vol. CE-26 No. 3 1980 pp. 657-663.
Horstman Rudolf A.
Schreurs Jacobus C.
Chin Stephen
Marion Michael E.
U.S. Philips Corporation
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