Capacitance-to-digital interface circuit for differential...

Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C341S172000, C324S658000, C324S678000, C324S679000, C073S718000, C073S724000

Reexamination Certificate

active

07324029

ABSTRACT:
A two phase, second order capacitance-to-digital (CD) modulator includes a first stage sigma-delta integrator that forms charge packets as a function of sensor capacitance during an auto-zero phase and integrates the packets during an integration phase to produce an output voltage. The first stage integrator holds its output voltage during the auto-zero phase, so that a second stage sigma-delta integrator can sample the first stage output voltage during the auto-zero phase and integrate the sampled voltage during the integration phase.

REFERENCES:
patent: 4163221 (1979-07-01), Kosakowski
patent: 4878012 (1989-10-01), Schulte et al.
patent: 5057839 (1991-10-01), Koch
patent: 5159341 (1992-10-01), McCartney et al.
patent: 5323158 (1994-06-01), Ferguson, Jr.
patent: 5351050 (1994-09-01), Thompson et al.
patent: 5974895 (1999-11-01), Steger et al.
patent: 5990578 (1999-11-01), Krauss
patent: 6005500 (1999-12-01), Gaboury et al.
patent: 6140952 (2000-10-01), Gaboury
patent: 6172630 (2001-01-01), Nelson
patent: 6295875 (2001-10-01), Frick et al.
patent: 6356085 (2002-03-01), Ryat et al.
patent: 6509746 (2003-01-01), Wang
patent: 6516672 (2003-02-01), Wang
patent: 6684711 (2004-02-01), Wang
patent: 6768319 (2004-07-01), Wang
patent: 6834258 (2004-12-01), Schulte et al.
patent: 6873277 (2005-03-01), Frick
patent: 6970126 (2005-11-01), O'Dowd et al.
patent: 2006/0213270 (2006-09-01), O'Dowd et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Capacitance-to-digital interface circuit for differential... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capacitance-to-digital interface circuit for differential..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitance-to-digital interface circuit for differential... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2781693

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.