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.:
Date of Patent:
Sep. 21, 2021
Filed:
Oct. 10, 2019
Beijing Boe Optoelectronics Technology Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Zhaohui Meng, Beijing, CN;
Wei Sun, Beijing, CN;
Wenchao Han, Beijing, CN;
Xinle Wang, Beijing, CN;
Yilin Feng, Beijing, CN;
Guangquan Wang, Beijing, CN;
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A stylus pen that includes a tip electrode, a power supply circuit, a signal detector, and a drive circuit where an output signal is transmitted to and an input signal is received from a touch panel via the tip electrode. The power supply circuit of the stylus pen selectively supplies a first supply voltage or a second supply voltage. The signal detector of the stylus pen detects an enable signal from the input signal and the signal detector of the stylus pen controls the power supply circuit to supply the first supply voltage in response to presence of the enable signal. The drive circuit operates at the first supply voltage to generate the output signal.