Digital variable frequency oscillator

Details Digital variable frequency oscillator Digital variable frequency oscillator

2005-05-03

2005-05-03

Ha, Dac V (Department: 2634)

Pulse or digital communications

Receivers

Automatic frequency control

C375S362000, C375S371000, C327S159000, C327S160000, C331S00100A, C331S00100A, C331SDIG003

Reexamination Certificate

active

06888902

ABSTRACT:
Disclosed is a digital variable oscillator which has: a cycle change detector for detecting the change of cycle between two input data; a decoder for outputting a predetermined signal in relation to the detection result of the cycle detector; an adder for adding signal output from the decoder a predetermined time; and a frequency adjuster for adjusting the frequency of window signal in relation to the addition result of the adder.

REFERENCES:
patent: 5677648 (1997-10-01), Jones
patent: 5903197 (1999-05-01), Kikugawa
patent: 5939947 (1999-08-01), Nakao et al.
patent: 3-227123 (1991-10-01), None
patent: 5-303706 (1993-11-01), None
Newton's Telecom Dictionary, 14thUptated & Expanded Eddition, p. 218.

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