Battery saving frequency synthesizer arrangement

Details Battery saving frequency synthesizer arrangement Battery saving frequency synthesizer arrangement

1980-11-10

1985-06-04

Chin, Tommy P.

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

455119, 331 14, 331 17, H04B 102, H03L 702, H03L 706

Patent

active

045219184

ABSTRACT:
An arrangement for reducing the amount of battery supplied power to a high frequency synthesizer. The phase-locked loop section of the synthesizer is periodically disconnected from the battery supplied power. In order to prevent substantial drift of the phase-locked loop during such power interruption, a control signal is provided for maintaining the VCO frequency. By minimizing the frequency drift, the loop can be re-locked in a short period of time following each power interruption.

REFERENCES:
patent: 3546618 (1970-12-01), Menkes
patent: 3568085 (1971-03-01), Pimenoff
patent: 3609577 (1971-09-01), Bos
patent: 3614648 (1971-10-01), Byrne
patent: 3619784 (1971-11-01), Wycoff
patent: 3660781 (1972-05-01), Tewksbury et al.
patent: 3721909 (1973-03-01), Pincus
patent: 3857108 (1974-12-01), Kanow
patent: 4053933 (1977-10-01), Collins
patent: 4069462 (1978-01-01), Dunn
patent: 4105946 (1978-08-01), Ikeda
patent: 4128849 (1978-12-01), Rhee

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