Horology: time measuring systems or devices – Chronological – With pulse transforming means
Patent
1979-03-29
1981-01-06
Jackmon, Edith S.
Horology: time measuring systems or devices
Chronological
With pulse transforming means
331 25, 368156, G04G 302, H03L 700
Patent
active
042440432
ABSTRACT:
A system for performing frequency division of a high frequency signal by intermittent operation of a frequency dividing counter circuit and by a phase lock loop circuit, in which phase lock is periodically achieved with an output of the counter circuit. Phase lock loop circuit is of novel design which provides exact phase lock without cyclic variations from the reference phase.
REFERENCES:
patent: 3982194 (1976-09-01), Chi et al.
patent: 4017806 (1977-04-01), Rogers
Ebiha Heihachiro
Fujita Hiro
Sekiya Fukuo
Tsuzuki Akira
Citizen Watch Co. Ltd.
Jackmon Edith S.
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