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. 04, 2017
Filed:
Jul. 02, 2010
Applicant:
Wulf Reise, Constance, DE;
Inventor:
Wulf Reise, Constance, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/975 (2006.01); H03K 17/96 (2006.01); H01H 13/705 (2006.01); H01H 3/02 (2006.01);
U.S. Cl.
CPC ...
H03K 17/962 (2013.01); H01H 13/705 (2013.01); H01H 2003/0293 (2013.01); H01H 2203/038 (2013.01); H01H 2239/006 (2013.01); H03K 2017/9613 (2013.01); H03K 2217/96054 (2013.01); H03K 2217/960755 (2013.01);
Abstract
A pushbutton switch has a pressure switching function to recognize a key actuation and a capacitive sensor function to recognize a key touch. It has an at least partly electrically conductive key () and a printed circuit board () which includes at least one electrical contact () that is activated by depressing the key () via a switching mat () arranged between the key () and the printed circuit board (). The printed circuit board () also has at least one capacitive sensor surface () located opposite to and at a distance from the key (), with a capacitive coupling existing between the key () and the sensor surface ().