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:
Oct. 11, 2022
Filed:
Sep. 29, 2021
Applicant:
Himax Technologies Limited, Tainan, TW;
Inventors:
Chung-Wen Chang, Tainan, TW;
Fong Wei Yang, Tainan, TW;
Ming-Kai Cheng, Tainan, TW;
Wen-Sen Su, Tainan, TW;
Shen-Feng Tai, Tainan, TW;
Assignee:
HIMAX TECHNOLOGIES LIMITED, Tainan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/0354 (2013.01);
U.S. Cl.
CPC ...
G06F 3/04162 (2019.05); G06F 3/03545 (2013.01);
Abstract
A touch-and-display device operated with an active stylus is provided. A touch position is detected in a touch detection period. An uplink signal is transmitted and a downlink signal is detected in a stylus detection period. When the downlink signal is detected, it is determined if a distance between a stylus position and the touch position is less than or equal to a first predetermined distance. A stylus mode is not entered if the determination result is affirmative.