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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.:

US 11262253 B1

PDFFull Text
Date of Patent:
Mar. 01, 2022

Filed:

Aug. 10, 2018

Touch input detection using a piezoresistive sensor

Applicant:

Sentons Inc., Grand Cayman, KY;

Inventors:

Samuel W. Sheng, Saratoga, CA (US);

Shih-Ming Shih, San Jose, CA (US);

Yenyu Hsieh, San Jose, CA (US);

Shirish A. Altekar, Palo Alto, CA (US);

Assignee:

Sentons Inc.;

Attorney:

Van Pelt, Yi & James LLP

Primary Examiner:

Patrick N Edouard

Assistant Examiner:

Douglas M Wilson

Int. Cl.
CPC ...
G01L 1/18 (2006.01); G06F 3/045 (2006.01); G06F 3/043 (2006.01); G06F 3/041 (2006.01); G01L 9/06 (2006.01); G01L 5/00 (2006.01); H03K 17/96 (2006.01); H01L 41/319 (2013.01); G06F 1/16 (2006.01); G01L 9/08 (2006.01); G01P 15/12 (2006.01);
U.S. Cl.
CPC ...
G01L 1/18 (2013.01); G06F 3/045 (2013.01); G06F 3/0436 (2013.01); G06F 3/04144 (2019.05); G06F 3/04164 (2019.05); H01L 41/319 (2013.01); H03K 17/964 (2013.01); H03K 17/9643 (2013.01); H03K 17/9645 (2013.01); G01L 5/0019 (2013.01); G01L 9/06 (2013.01); G01L 9/065 (2013.01); G01L 9/08 (2013.01); G01P 15/123 (2013.01); G06F 1/1692 (2013.01); G06F 3/043 (2013.01); G06F 2203/04102 (2013.01); G06F 2203/04103 (2013.01); G06F 2203/04105 (2013.01); G06F 2203/04106 (2013.01);
Abstract

A system is for detecting a location of a touch input on a surface of a propagating medium. The system includes a transmitter coupled to the propagating medium and configured to emit a signal. The signal has been allowed to propagate through the propagating medium and the location of the touch input on the surface of the propagating medium is detected at least in part by detecting an effect of the touch input on the signal that has been allowed to propagate through the propagating medium. The system includes a piezoresistive sensor coupled to the propagating medium. The piezoresistive sensor is configured to at least detect a force, pressure, or applied strain of the touch input on the propagating medium.

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