Signal generating circuit

Details Signal generating circuit Signal generating circuit

2006-12-19

2009-10-13

Kinkead, Arnold (Department: 2817)

Oscillators

Ring oscillators

C331S034000, C331S074000, C327S172000, C327S175000, C327S156000, C327S161000

Reexamination Certificate

active

07602257

ABSTRACT:
A signal generating circuit is provided. The signal generating circuit may include a plurality of delay circuits coupled to provide a plurality of control signals, a weighted-sum circuit to receive the plurality of control signals and to provide an output analog signal, and a comparator circuit to compare the output analog signal with a voltage and to provide a pulse width modulated (PWM) signal based on the comparison.

REFERENCES:
patent: 6801026 (2004-10-01), Schrom et al.
patent: 6838863 (2005-01-01), Hazucha et al.
patent: 7050522 (2006-05-01), Schmatz
patent: 2004/0120169 (2004-06-01), Schrom et al.
patent: 2005/0140415 (2005-06-01), Hazucha et al.
patent: 2005/0286280 (2005-12-01), Schrom et al.
patent: 2006/0033553 (2006-02-01), Hazucha et al.
patent: 2006/0038543 (2006-02-01), Hazucha et al.

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