Signal processing circuit

Details Signal processing circuit Signal processing circuit

2006-05-16

2006-05-16

Nguyen, Patricia (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S110000, C330S109000, C330S20700P

Reexamination Certificate

active

07046080

ABSTRACT:
A signal processing circuit comprises a difference stage for receiving an input signal to be processed and a feedback signal taken from an output signal of the circuit. The difference stage generates a difference signal corresponding to the difference between the input and feedback signal. An integrator stage is coupled to the difference stage to receive the difference signal and output an integrated signal. A time continuous pulse width modulating stage is coupled to the integrator stage to receive the integrated signal and to modulate the signal with reference to a continuously varying carrier signal. A continuous time feedback path is coupled to the output of the modulating stage and an input or the difference stage. The integrator stage comprises at least two integrators to provide second or higher order integration.

REFERENCES:
patent: 4458208 (1984-07-01), Abe
patent: 4843339 (1989-06-01), Burt et al.
patent: 4952884 (1990-08-01), Tokumo et al.
patent: 5218315 (1993-06-01), Turner
patent: 5352986 (1994-10-01), Modgil et al.
patent: 5777512 (1998-07-01), Tripathi et al.
patent: 5805020 (1998-09-01), Danz et al.
patent: 6064259 (2000-05-01), Takita
patent: 6297692 (2001-10-01), Nielsen
patent: 6346852 (2002-02-01), Masini et al.
patent: 2004/0189377 (2004-09-01), Lee
patent: 196 19 208 (1997-11-01), None
patent: 0616422 (1994-09-01), None
patent: 63-69465 (1988-03-01), None
patent: WO94/17588 (1994-08-01), None
patent: WO97/49175 (1997-12-01), None
patent: WO99/38255 (1999-07-01), None
AES Preprint—New Concepts in Pulse-Width Modulation—(J. Vanderkooy) Presented Nov. 10-13, 1994, San Francisco—pp. 1-33 including drawings.

Affiliated with

Also associated with

Rating

Signal processing circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal processing circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3604087