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:
Mar. 20, 2018

Filed:

Aug. 05, 2015
Applicants:

Zhong Lin Wang, Atlanta, GA (US);

Guang Zhu, Atlanta, GA (US);

Inventors:

Zhong Lin Wang, Atlanta, GA (US);

Guang Zhu, Atlanta, GA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); H03K 17/96 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0414 (2013.01); H03K 17/96 (2013.01); H03K 17/964 (2013.01); H03K 17/9643 (2013.01); G06F 2203/04102 (2013.01); G06F 2203/04103 (2013.01);
Abstract

A tactile sensor for sensing touch from a human finger includes a triboelectric layer and includes a material that becomes electrically charged after being in contact with the finger. The first side of a first conductive layer is in contact with the second side of triboelectric layer. The first side of a dielectric layer is in contact with the first conductive layer and the second side of the dielectric layer is in contact with a second conductive layer. When the triboelectric layer becomes electrically charged after being in contact with the finger, the first conductive layer and the second conductive layer are subjected to an electric field, which has a first field strength at the first conductive layer and a second field strength, different from the first field strength, at the second conductive layer. A plurality of tactile sensors can be arranged as a keyboard.


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