Numerical control type oscillator apparatus

Details Numerical control type oscillator apparatus Numerical control type oscillator apparatus

1991-05-23

1992-10-06

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307271, 328 61, H03B 1900, H03K 304, H03L 700

Patent

active

051535262

ABSTRACT:
A numerical control type oscillator whose output oscillation frequency is controlled depending on input numerical data, comprises: first accumulation means for accumulating a first set value which is set depending on the input numerical data with a first frequency and sequentially outputting the accumulated value; second accumulation means for accumulating a second set value which is set depending on the input numerical data with a second frequency and varying the first set value by a predetermined value temporarily when the accumulated value reaches a predetermined maximum value; and frequency generation means for outputting a frequency depending on an output of the first accumulation means as an oscillation frequency.

REFERENCES:
patent: 3824498 (1974-07-01), McBride
patent: 4652832 (1987-03-01), Jasper
patent: 4901265 (1990-02-01), Kerr et al.
Research Disclosure, No. 316, Aug. 1990, Emsworth, p. 646; Tran Thong: "Increased Frequency Resolution Digital Signal Generator".
Patent Abstracts of Japan, vol. 6, No. 185 (E-132)(1063), Sep. 21, 1982 and JP-A-57 99 007 (Fujitsu K.K.) Jun. 19, 1982.

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