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:
Dec. 06, 2011
Filed:
Dec. 13, 2007
Applicants:
John P. Taylor, San Diego, CA (US);
Jeffrey M. Thoma, San Diego, CA (US);
Inventors:
John P. Taylor, San Diego, CA (US);
Jeffrey M. Thoma, San Diego, CA (US);
Assignee:
Kyocera Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and apparatus for determining the operating states of a plurality of capacitive sensing buttons in a capacitive sensing user interface are disclosed. The capacitive sensing buttons are sampled in a round-robin fashion such that the decay time samples for the buttons are acquired in an interleaved manner during each sampling cycle. Provisions are made to reduce the initialization delay, to reduce transient-induced errors, and to obtain the operating states based on updated decay data samples for the buttons.