Phase synchronization circuit

Details Phase synchronization circuit Phase synchronization circuit

1989-12-01

1992-09-15

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

G11B 509

Patent

active

051483343

ABSTRACT:
Every other input pulse is extracted from an input signal containing alternate phase-advanced and phase-delayed pulses read out of a magnetic disk unit, a magnetic tape unit or the like. Output pulses in synchronism with the pulses thus extracted are produced. This extraction may be effected only during a predetermined length of time after staring application of the input pulses at the time of pull-in of a phase sync circuit. Whether phase synchronization is to be effected in accordance with advanced-phase or delayed-phase input pulses is determined from time to time as required.

REFERENCES:
patent: 4958243 (1990-09-01), Chen et al.
patent: 4970609 (1990-11-01), Cunningham et al.

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