Oscillator circuit and integrated circuit incorporating the...

Oscillators – Combined with particular output coupling network

Reexamination Certificate

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C307S010700, C361S091500

Reexamination Certificate

active

11475009

ABSTRACT:
The oscillator circuit comprises a capacitor and first to fourth constant current supplies and switches are connected to the capacitor. Both terminals of the capacitor are used for charges and discharges. One period comprises four steps; charging the first terminal of the capacitor, discharging the second terminal, charging the first terminal, and discharging the second terminal.

REFERENCES:
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patent: 4623852 (1986-11-01), Abou et al.
patent: 4972162 (1990-11-01), Banu
patent: 5142162 (1992-08-01), Sundeen et al.
patent: 5426384 (1995-06-01), May
patent: 5896070 (1999-04-01), Tchamov et al.
patent: 6646845 (2003-11-01), Turner et al.
patent: 6803832 (2004-10-01), Piggot
patent: 2003/0155982 (2003-08-01), Hollinger et al.

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