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:
Jul. 07, 2015
Filed:
Jan. 03, 2013
Em Microelectronic-marin SA, Marin, CH;
Christophe Entringer, Corcelles-pres-Concise, CH;
Sylvain Grosjean, Les Fins, FR;
EM MICROELECTRONIC-MARIN SA, Marin, JP;
Abstract
The method is for measuring a physical parameter by an electronic circuit connected to a two differential capacitor sensor having two fixed electrodes and a common moving electrode. The electronic circuit supplies first and second digital measuring signals. Each measuring cycle consists on biasing the electrodes by the measuring voltage based on the first digital signal, connecting the fixed electrodes to a supply voltage source for a first biasing, biasing the electrodes by the measuring voltage based on the second digital measuring signal, and inversely connecting the fixed electrodes to a supply voltage source for a second biasing. In first successive measuring cycles, the first and second digital signals are adapted to each cycle by a large step value. In second successive measuring cycles, the first and second digital signals are adapted to each cycle by a small step value until the end of the conversion.