Apparatus for presetting receivers of the synthesizing type

Details Apparatus for presetting receivers of the synthesizing type Apparatus for presetting receivers of the synthesizing type

1974-09-17

1976-07-27

Libman, George H.

325470, H04B 132

Patent

active

039719928

ABSTRACT:
In a method of presetting a receiver of the synthesizing type wherein the ratio of frequency division of a frequency divider in a phase locked loop is set in accordance with the content of an up-down counter, a search signal and a write signal are generated for sweeping the up-down counter, the contents of the up-down counter are sequentially written in a memory device each time an intermediate frequency output is obtained, and the up-down counter is preset in accordance with a data read out of the memory device thereby enabling the receiver to receive the signal from a desired broadcasting station.

REFERENCES:
patent: 3803494 (1974-04-01), Howell et al.
patent: 3845394 (1974-10-01), Hamada
patent: 3864637 (1975-02-01), Kanow

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