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:
Jun. 18, 2019
Filed:
Dec. 20, 2016
Lg Display Co., Ltd., Seoul, KR;
Sungsu Han, Gyeonggi-do, KR;
Hyunguk Jang, Gyeonggi-do, KR;
Sungchul Kim, Gyeonggi-do, KR;
Sanghyuck Bae, Gyeonggi-do, KR;
Suyun Ju, Gangwon-do, KR;
Doyoung Jung, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An active stylus pen according to the present invention includes a first signal processor configured to generate a touch frame recognition signal for discriminating touch frames on the basis of sub-pulses corresponding to part of each touchscreen driving signal received from a touchscreen and a second signal processor configured to generate a pen driving signal synchronized with main pulses of each touchscreen driving signal other than the sub-pulses and to vary the pen driving signal in units of a touch frame according to the touch frame recognition signal such that additional pen information is reflected in the pen driving signal.