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:
Dec. 28, 2021
Filed:
Mar. 13, 2018
Yuichi Kawasaki, Kanagawa, JP;
Yuichi Kawasaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electronic blackboard includes a display that displays visible information. The electronic blackboard includes a coordinate detector configured to detect coordinates of an object in the display; a number detector configured to detect a number of the objects in the display, based on the detected coordinates of the object; a time measurer configured to start measuring a predetermined time in response to detecting a first object; and a mode determiner configured to determine that the electronic blackboard is in a handwriting mode in which the visible information is displayed based on the coordinates, upon determining that a second object is not detected upon completing to measure the predetermined time, and to determine that the electronic blackboard is in a gesture mode in which an operation with respect to the visible information is accepted, upon determining that the second object is detected before completing to measure the predetermined time.