Frequency multiplier/divider apparatus and method

Details Frequency multiplier/divider apparatus and method Frequency multiplier/divider apparatus and method

1983-12-27

1985-12-03

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Systems

Pulse multiplication or division

307271, 364900, H03L 708

Patent

active

045569843

ABSTRACT:
Apparatus and method for generating an output signal as a function of an input, or reference signal. The apparatus consists of a numerically controlled oscillator having an output signal whose output frequency is determined by the input of a pair of frequency select inputs to the NCO. A control unit operates a multiplexer which allows one of the pair of frequency select inputs to be transmitted to the NCO. The increase in the number of variables provides an increase in the number of different step frequencies the FMD may be operated at.

REFERENCES:
patent: 3729623 (1973-04-01), Kelling
patent: 3859737 (1976-05-01), Tanis
patent: 4101838 (1978-07-01), Aihara et al.
patent: 4184068 (1980-01-01), Washburn

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