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:
Feb. 07, 2012
Filed:
May. 26, 2006
Andrei Uhov, St. Petersburg, RU;
Nikolay Nikitin, St. Petersburg, RU;
Dmitry Sazanov, St. Petersburg, RU;
Andrei Uhov, St. Petersburg, RU;
Nikolay Nikitin, St. Petersburg, RU;
Dmitry Sazanov, St. Petersburg, RU;
Electrolux Home Products Corporation N.V., Zaventem, BE;
Abstract
Electronic circuit for the detection of a capacitive variation on two distinct contact capacitors, (C, C), comprising means able of squaring the signals generated by a conventional pulse generator and filtered by two filters (R, C-R, C), wherein the respective capacitors (C, C) are the same said contact capacitors which are connected to a respective terminal to a common ground (G); said means are also able to generate respective signals formed of trains of squared pulses, to compare said two signals and to provide an output signal depending on the result of said signals comparison. Said output signal depends on the phase difference between the pulses of said two trains of squared pulses.