Oscillators – Relaxation oscillators
Patent
1976-03-25
1977-12-06
Safourek, Benedict V.
Oscillators
Relaxation oscillators
325 25, 331 18, H04B 140
Patent
active
040619737
ABSTRACT:
The synthesizer uses phase lock loop techniques to generate either the carrier signal for an associated transmitter or the injection signal for an associated receiver. A programmable divider controls the specific channel to which the synthesizer tunes the transmitter or receiver whereas operation in the transmit or receive mode is dependent upon which of two oscillators is coupled in the synthesizer circuit. The oscillators are designed to run at two frequencies having a difference equal to the intermediate frequency of the receiver. This allows the one output from the synthesizer to be used in both the transmit and receive modes.
REFERENCES:
patent: 3696422 (1972-10-01), Burrell
patent: 3983484 (1976-09-01), Hodama
Beckmann Robert Martin
Burzynski William Arthur
Reimers Fred Alan
Schwartz William Henry
Tomlinson Dennis Eugene
Gillman James W.
Hamley James P.
Masinick Michael A.
Motorola Inc.
Safourek Benedict V.
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