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:
Jan. 29, 2019
Filed:
Aug. 11, 2015
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Noriyoshi Kanki, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
An electronic blackboard includes a display panel and a touch-panel, draws a line corresponding to a track formed by movement of the touched position on the displayed image, and erases an erroneously drawn line corresponding to a track specifying an operation other than drawing. In another aspect, an electronic blackboard includes a touch screen, a scroll unit for scrolling an image on the display screen when positions of multi-touch move in one same direction, and a page switching unit for detecting, after detection of multi-touch input, that a finger is moved away, and executing a process of returning the image on the display screen to a state before scrolling or a process of switching the image by one page in accordance with the moving direction of multi-touch positions, depending on whether the amount of movement of touch inputs is equal to or smaller than a threshold value.