The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Dec. 11, 2013
Continental Automotive France, Toulouse, FR;
Continental Automotive Gmbh, Hannover, DE;
Xavier Hourne, Cugnaux, FR;
CONTINENTAL AUTOMOTIVE FRANCE, Toulouse, FR;
CONTINENTAL AUTOMOTIVE GMBH, Hannover, DE;
Abstract
A method and device for measuring a variation of a capacitance, the device includes: a capacitance having a voltage across its terminals; a charging element and a discharging element; a comparison element; control elements activating the charging element or the discharging element as a function of the value of the voltage across the terminals of the capacitance and of which an output voltage has a high value during the charging and a low value during the discharging; a counter measuring a time representative of a predetermined number of charging and discharging cycles of the capacitance; and an additional capacitance electrically connected to the output voltage and to the capacitance, able to be charged and discharged simultaneously with the charging and discharging of the capacitance.