Variable frequency oscillator having programmable digital freque

Details Variable frequency oscillator having programmable digital freque Variable frequency oscillator having programmable digital freque

1976-10-01

1977-12-27

Kominski, John

Oscillators

Plural oscillators

Cascade or tandem connected

325455, 331 64, 331116R, 331117R, 331177V, H03B 1912

Patent

active

040657272

ABSTRACT:
A high frequency variable oscillator has its frequency grossly set by a bandswitch and an uncalibrated coarse tuning control and finely tuned by an uncalibrated incremental control. The oscillator includes a broad band buffer circuit and a push-pull output circuit to provide an amplified isolated output having attenuated even harmonics. The oscillator includes a user programmable digital counter element connected to count the output of the oscillator. The counter includes timing circuitry and a multiple stage programmable ripple counter timed thereby. Each stage of the counter is connected to a latch decoder which is in turn connected to a digit display element. The latch decoders are connected to be controlled by the timing circuitry.

REFERENCES:
patent: 3137824 (1964-06-01), Kagan et al.
patent: 3244983 (1966-04-01), Ertman
patent: 3509484 (1970-04-01), Basse
patent: 3681707 (1972-08-01), Bean
patent: 3753119 (1973-08-01), Close
patent: 3755763 (1973-08-01), Hoshi
patent: 3835424 (1974-09-01), Marik
patent: 3983491 (1976-09-01), Yoshisato

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