Method of automatically tuning a radio

Details Method of automatically tuning a radio Method of automatically tuning a radio

1991-10-23

1994-05-17

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551861, H04B 116

Patent

active

053136594

ABSTRACT:
A digital tuner for a radio in the medium frequency range includes a microprocessor and a keyboard. All frequencies are three digit numbers and are whole number multiples of nine. The desired three digit frequency is input to the microprocessor by manually entering the first two digits using the keyboard If, the third digit is ambiguous it must be inputted manually. The operator is made aware of the ambiguity by the flashing of an indicator where the digit is to be displayed.

REFERENCES:
patent: 4122395 (1978-10-01), Schotz
patent: 4466127 (1984-08-01), Ohgishi et al.
patent: 5023938 (1991-06-01), Takegawa et al.

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