Device for detecting a capacitance variation and capacitive sensor for detecting the presence of a user using such a device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 29, 2013
Grant Date -
Sep 16, 2010
app pub date -
May 30, 2006
filing date -
Jun 1, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for detecting a variation in the capacitance of a variable capacitive structure, wherein the device generates voltage pulses, charges the variable capacitive structure using the voltage pulses, discharges the variable capacitive structure toward a reference capacitor, detects a voltage threshold across the terminals of the reference capacitor, determines a number of charges and/or discharges of the variable capacitive structure corresponding to the voltage threshold, and detects a variation in the number of charges and/or discharges with respect to a number of charges and/or discharges previously obtained.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully