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:
Feb. 03, 2026

Filed:

Oct. 21, 2024
Applicant:

Wuhan China Star Optoelectronics Technology Co., Ltd., Hubei, CN;

Inventors:

Chuan Shuai, Hubei, CN;

Rui He, Hubei, CN;

Guowei Zha, Hubei, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/046 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/046 (2013.01); G06F 3/03545 (2013.01); G06F 3/0412 (2013.01);
Abstract

The present disclosure provides an electromagnetic touch screen and an electromagnetic touch device including the electromagnetic touch screen. The electromagnetic touch scree includes receiving coils and transmitting coils. The transmitting coils are correspondingly arranged in a peripheral area around the receiving coils. The transmitting coils are configured to transmit transmitting signals through which a first magnetic field is generated to charge the stylus before a touch operation, and the receiving coils are configured to generate receiving signals during the touch operation.


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