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.

Date of Patent:
Jan. 06, 2015

Filed:

Apr. 21, 2014
Applicant:

Synaptics Incorporated, San Jose, CA (US);

Inventors:

Cody George Peterson, Hayden, ID (US);

Douglas M. Krumpelman, Hayden, ID (US);

Andrew P. Huska, Liberty Lake, WA (US);

Assignee:

Synaptics Incorporated, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/975 (2006.01); H03K 17/96 (2006.01); H03K 17/98 (2006.01);
U.S. Cl.
CPC ...
H03K 17/9622 (2013.01); H03K 17/962 (2013.01); H03K 17/98 (2013.01); H03K 2217/96077 (2013.01);
Abstract

Described herein are techniques related to capacitance-based keyswitch technologies. According to one implementation, an apparatus includes a key with a floating electrode. The floating electrode pairs with a fixed electrode and a capacitance may be generated between them. The apparatus has a controller configured to measure the capacitance as the electrodes move relative to each other as the key is depressed and released. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.


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