Apparatus and method for selecting station using D/A converter t

Details Apparatus and method for selecting station using D/A converter t Apparatus and method for selecting station using D/A converter t

1994-09-21

1997-05-06

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551922, 4551841, 455260, 455264, H04B 118

Patent

active

056280602

ABSTRACT:
An apparatus and a method for selecting a station are disclosed in which a count section or a comparison section compares/decides a local oscillation frequency, and a digital/analog converter controls the local oscillation frequency according to the decided result, in order to perform an accurate and stable station selection. The apparatus includes a local oscillator means, a dividing means, a count section or comparison section, a control section, and a digital analog converter. The method includes the steps of controlling the digital/analog converter, dividing, the signal output from the local oscillator outputting correction data, and controlling increase/decrease of the oscillation frequency of the local oscillator according to the correction data.

REFERENCES:
patent: 4352205 (1982-09-01), Kato et al.
patent: 4422096 (1983-12-01), Henderson
patent: 4479248 (1984-10-01), Caspari et al.
patent: 5107522 (1992-04-01), Kitayama et al.

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