Adding circuit suitable for sigma-delta modulator circuits

Details Adding circuit suitable for sigma-delta modulator circuits Adding circuit suitable for sigma-delta modulator circuits

2006-04-25

2006-04-25

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S155000, C341S172000

Reexamination Certificate

active

07034729

ABSTRACT:
An adding circuit includes storage capacitors and a a switch mechanism, the storage capacitors being charged up via voltage signals to be added during a first clock phase. During a second clock phase, the storage capacitors are connected in parallel, with the result that a charge equalization occurs. After the charge equalization, the voltage dropped across the parallel-connected storage capacitors is equal to a sum of the signals to be added except for a scaling factor. In one embodiment, the adding circuit is used in a sigma-delta modulator circuit.

REFERENCES:
patent: 4920544 (1990-04-01), Endo et al.
patent: 5212486 (1993-05-01), Nagaraj
patent: 5818374 (1998-10-01), Tan
patent: 5982313 (1999-11-01), Brooks et al.
patent: 5990819 (1999-11-01), Fujimori
patent: 6040793 (2000-03-01), Ferguson et al.
patent: 6177897 (2001-01-01), Williams, III
patent: 6271782 (2001-08-01), Steensgaard-Madsen
patent: 6278750 (2001-08-01), Yu
patent: 6304608 (2001-10-01), Chen et al.
patent: 6346898 (2002-02-01), Melanson
patent: 6393070 (2002-05-01), Reber
patent: 6426714 (2002-07-01), Ruha et al.
patent: 6473019 (2002-10-01), Ruha et al.
patent: 6839011 (2005-01-01), Hong
patent: 6882861 (2005-04-01), Panasik et al.
patent: 2002/0110189 (2002-08-01), Souissi et al.
patent: 0464500 (1994-09-01), None
patent: 0738439 (1998-04-01), None
patent: 0643477 (1999-12-01), None
patent: 0764368 (2000-05-01), None
patent: 2195848 (1988-04-01), None
patent: 2247369 (1992-02-01), None

Affiliated with

Also associated with

Rating

Adding circuit suitable for sigma-delta modulator circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adding circuit suitable for sigma-delta modulator circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adding circuit suitable for sigma-delta modulator circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3616835