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:
Sep. 13, 2016
Filed:
Mar. 31, 2014
Applicant:
Synaptics Incorporated, San Jose, CA (US);
Inventor:
Torbjorn Hovden, Santa Clara, CA (US);
Assignee:
Synaptics Incorporated, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/94 (2006.01); H03K 17/96 (2006.01); G06F 3/044 (2006.01); G06F 3/023 (2006.01); H03K 17/955 (2006.01); H03K 17/98 (2006.01);
U.S. Cl.
CPC ...
H03K 17/9622 (2013.01); G06F 3/023 (2013.01); G06F 3/044 (2013.01); H03K 17/955 (2013.01); G06F 2203/04101 (2013.01); H03K 17/98 (2013.01); H03K 2217/96027 (2013.01);
Abstract
In a keyboard of the type including a key cap and a capacitive sensor disposed underneath the key cap, a method including operating the capacitive sensor in a first mode configured for near field detection and generating a first variable capacitance, and operating the capacitive sensor in a second mode configured for far field detection and generating a second variable capacitance. The method further includes determining key motion based on the first variable capacitance and determining finger presence based on the second variable capacitance.