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. 18, 2012
Filed:
Sep. 03, 2009
Minho Sohn, Paju-si, KR;
Jongseong Choi, Paju-si, KR;
Hyunguk Jang, Goyang-si, KR;
Sangrae Lee, Gunpo-si, KR;
Jaejung Han, Seoul, KR;
Sanghyuck Bae, Paju-si, KR;
Byungchun Yu, Paju-si, KR;
Minho Sohn, Paju-si, KR;
Jongseong Choi, Paju-si, KR;
Hyunguk Jang, Goyang-si, KR;
Sangrae Lee, Gunpo-si, KR;
Jaejung Han, Seoul, KR;
Sanghyuck Bae, Paju-si, KR;
Byungchun Yu, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A multi-touch sensing method and apparatus are described. The multi-touch sensing method includes: storing, in a memory, coordinate values of a first dead zone and coordinate values of a second dead zone existing between first and second pair of image sensors, respectively; calculating coordinate values of touch points from images obtained by the first and second pairs of image sensors; comparing the coordinate values of the touch point and the coordinate values of the dead zones to identify the location of the dead zone to which the touch point belongs; selecting the coordinate values calculated in the third step if the coordinate values of the touch point belong to the first dead zone; and selecting the coordinate values calculated in the second step if the coordinate values of the touch point belong to the second dead zone.