Channel number interface

Details Channel number interface Channel number interface

1975-10-10

1978-08-29

Griffin, Robert L.

Oscillators

Relaxation oscillators

331 1A, H04B 106, H03B 304

Patent

active

041106946

ABSTRACT:
A digital frequency synthesizer in which a BCD.div. N counter is used to provide the desired frequencies of operation without requiring further BCD decoding operations to provide direct channel number interface. This is accomplished by selecting a value of (N) corresponding to a desired channel number (CN) and selecting a downmix heterodyning frequency so that the lower order bits of (N) are equal to the desired (CN) without need for further conversation.

REFERENCES:
patent: 3588730 (1971-06-01), Schreuer et al.
patent: 3588732 (1971-06-01), Tollefson
patent: 3845394 (1974-10-01), Hamada
patent: 3864637 (1975-02-01), Kanow
patent: 3898579 (1975-08-01), Aldridge
patent: 3902132 (1975-08-01), Fried
patent: 3909723 (1975-09-01), Manson et al.
patent: 3921094 (1975-11-01), Schaible
patent: 3949305 (1976-04-01), McClaskey et al.
patent: 3959737 (1976-05-01), Tanis
patent: 3988696 (1976-10-01), Sharpe
patent: 4013957 (1977-03-01), Tojo

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