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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 10622538 B1

PDFFull Text
Date of Patent:
Apr. 14, 2020

Filed:

Jul. 18, 2017

Techniques for providing a haptic output and sensing a haptic input using a piezoelectric body

Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Zhipeng Zhang, Santa Clara, CA (US);

Richard H. Koch, Cupertino, CA (US);

Teera Songatikamas, San Jose, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:

Brownstein Hyatt Farber Schreck, LLP

Primary Examiner:

Carl Adams

Int. Cl.
CPC ...
G06F 3/041 (2006.01); H01L 41/047 (2006.01); H01L 41/083 (2006.01); H01L 41/09 (2006.01); G06F 3/0488 (2013.01); G06F 3/01 (2006.01); H01L 41/08 (2006.01); H01L 41/04 (2006.01); G06F 1/16 (2006.01);
U.S. Cl.
CPC ...
H01L 41/0472 (2013.01); G06F 1/1643 (2013.01); G06F 3/016 (2013.01); G06F 3/041 (2013.01); G06F 3/0412 (2013.01); G06F 3/0416 (2013.01); G06F 3/04886 (2013.01); H01L 41/042 (2013.01); H01L 41/083 (2013.01); H01L 41/0825 (2013.01); H01L 41/09 (2013.01); G06F 2203/04103 (2013.01);
Abstract

Haptic interfaces are described. One haptic interface includes a piezoelectric body and first and second electrodes coupled to the piezoelectric body. The haptic interface also includes a control circuit. The control circuit includes a haptic actuator, a haptic sensor circuit, and an overcurrent protection circuit. The haptic actuator circuit is coupled to the first electrode and configured to charge the piezoelectric body. The charging causes the piezoelectric body to provide a haptic output. The haptic sensor circuit is coupled to the second electrode and configured to sense an electrical change at the second electrode. The electrical change is related to a haptic input received by the piezoelectric body. The overcurrent protection circuit is coupled to the second electrode and configured to limit a current flow into the haptic sensor circuit while the haptic actuator circuit is charging the piezoelectric body.

Find Patent Forward Citations

Zhang, Zhipeng. (2020). Techniques for providing a haptic output and sensing a haptic input using a piezoelectric body (U.S. Patent No. 10622538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10622538

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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