Variable frequency oscillating circuit

Details Variable frequency oscillating circuit Variable frequency oscillating circuit

2011-03-29

2011-03-29

Pascal, Robert (Department: 2817)

Oscillators

Ring oscillators

C331S173000

Reexamination Certificate

active

07915964

ABSTRACT:
A variable frequency oscillating circuit has an oscillating circuit that undergoes an oscillation operation. The oscillating circuit has at least one inverter and at least one capacitor forming a circuit in a ring oscillator configuration. A current circuit outputs a current based on a frequency control signal controlling a frequency of a clock signal output from the oscillating circuit. A pulse generating circuit generates a pulse when the frequency control signal is switched from low to high and from high to low. The oscillating circuit stops an oscillation operation by stopping a charge/discharge operation of the at least one capacitor when the pulse is generated by the pulse generating circuit.

REFERENCES:
patent: 5841707 (1998-11-01), Cline et al.
patent: 5920226 (1999-07-01), Mimura
patent: 6154100 (2000-11-01), Okamoto
patent: 6414522 (2002-07-01), Nguyen et al.
patent: 6809605 (2004-10-01), Ogawa et al.
patent: 7129796 (2006-10-01), Goto
patent: 7255476 (2007-08-01), Franch et al.
patent: 7449965 (2008-11-01), Jang
Patent Abstracts of Japan, publication No. 10-190414, publication date Jul. 21, 1998.

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