Tow mode harmonic and nonharmonic phase detector

Details Tow mode harmonic and nonharmonic phase detector Tow mode harmonic and nonharmonic phase detector

1977-04-18

1978-03-21

Heyman, John S.

328 72, 328110, 328134, H03K 117

Patent

active

040805760

ABSTRACT:
A phase detector for use in data systems which recovers data from a recorded media, which phase detector operates in a nonharmonic mode during the period of synchronization of the clock frequency and phase with that of preamble data, and operates in a harmonic mode during actual data recovery.

REFERENCES:
patent: 3470475 (1969-09-01), Peterson et al.
patent: 3514698 (1970-05-01), Rey
patent: 3614635 (1971-10-01), LaPine
patent: 3755748 (1973-08-01), Carlow et al.
patent: 3870900 (1975-03-01), Malaviya

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