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:
May. 02, 2017

Filed:

Mar. 14, 2013
Applicant:

Touchplus Information Corp., New Taipei, TW;

Inventor:

Shih Hsien Hu, New Taipei, TW;

Assignee:

Touchplus Information Corp., New Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G06F 3/044 (2006.01); H03K 17/96 (2006.01); H03K 17/98 (2006.01); G06F 3/02 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G06F 3/0202 (2013.01); G06F 3/044 (2013.01); H03K 17/9622 (2013.01); H03K 17/98 (2013.01); H03K 2017/9602 (2013.01);
Abstract

A capacitive touch keyboard includes a shielding layer, a intermediate layer, and a one-dimensional sensor layer where the soft intermediate layer is interposed between the other two to form a capacitor structure. The shielding layer includes a ground plane, and plural first key areas at its outer surface. The one-dimensional sensor layer includes plural sensing cells and plural second key areas where the first key areas correspond to the second key areas, and respective cells are electrically connected to a sensing circuit. Therefore, features of more compact size, simplified structure design, and tactile feel are provided in a capacitive keyboard.


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Hu, Shih. (2017). Capacitive touch keyboard (U.S. Patent No. 9638731). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9638731

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