Radio receiver tuning control system

Details Radio receiver tuning control system Radio receiver tuning control system

1975-12-23

1977-01-18

Safourek, Benedict V.

Oscillators

Relaxation oscillators

325455, 325464, 331 18, H04B 132

Patent

active

040042324

ABSTRACT:
A radio receiver tuning control system automatically selects a desired station through digital operation. A counting value based on the local oscillating frequency signal of the local oscillator of a receiver is compared, digit by digit, with a value corresponding to a specified frequency signal of a predetermined desired station. The local oscillator is controlled in order to maintain coincidence between the counting value and the specified value in accordance with the comparison result.

REFERENCES:
patent: 3883807 (1975-05-01), Alberkrack
patent: 3962640 (1976-06-01), Bomba

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