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:
Dec. 13, 2022

Filed:

Feb. 24, 2022
Applicant:

Pixart Imaging Inc., Hsin-Chu, TW;

Inventors:

Ming-Hung Tsai, Hsin-Chu, TW;

Tse-Chung Su, Hsin-Chu, TW;

Ren-Hau Gu, Hsin-Chu, TW;

Tzung-Min Su, Hsin-Chu, TW;

Assignee:

PixArt Imaging Inc., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/16 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 1/163 (2013.01); G06F 3/044 (2013.01); G06F 3/0412 (2013.01);
Abstract

An electronic device with a function of detecting a touch state, comprising: at least one first electrode, configured to generate a first capacitance reflecting a distance between the first electrode and an object; at least one second electrode, configured to generate a second capacitance reflecting a distance between the second electrode and the object, and wherein a first distance between the first electrode and the object is smaller than a second distance between the second electrode and the object when the electronic is in a wearing state; a capacitance calculating circuit, configured to calculate the first capacitance and the second capacitance; and a processing circuit, configured to determine if the electronic device is in the wearing state based on a capacitance difference between the first capacitance and the second capacitance. Via such structure, the touch state of the electronic device can be precisely acquired.


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