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:
Aug. 06, 2019
Filed:
Mar. 12, 2014
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventor:
Chien-Kuo Lee, Taipei, TW;
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/02 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0221 (2013.01); G06F 3/0202 (2013.01); G06F 3/044 (2013.01); G06F 2203/04111 (2013.01);
Abstract
A keyboard device includes a flexible layer, electrical traces on the flexible layer and a lattice substrate to support the flexible layer. The keyboard device further includes a key actuatable to contact the flexible layer and to stretch at least a portion of the flexible layer into an opening in the lattice substrate and a sensor to detect a change of capacitance of the electrical traces in response to actuation of the key by a conductive object.