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:
Apr. 26, 2005
Filed:
Nov. 14, 2003
Christophe Germiquet, Prêles, CH;
Vincent Berseth, Neuchâtel, CH;
Jean-jacques Born, Morges, CH;
Asuiab S.A., , CH;
Abstract
There is described a portable device () including in particular a case () closed by a glass () and containing device for detecting the presence of water () in contact with an external region of the assembly formed by the case and the glass. In a preferred embodiment, the device for detecting the presence of water include a plurality of capacitive sensors () arranged in a peripheral region of the device () so as to undergo a variation in their respective capacitances when the latter is immersed in water. Thus, a quantity characteristic of the capacitance value of each sensor () is periodically measured and stored. After each measurement, the new value obtained is compared to the preceding one to detect any variation in the corresponding capacitance. When a part of the capacitive sensors () simultaneously see their respective capacitances vary considerably between two measurements, detection of the presence of water is validated.