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. 03, 2017
Filed:
Dec. 01, 2015
Masafumi Nagao, Kanagawa, JP;
Masafumi Nagao, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image projection apparatus includes an image receiver; an image processor; a projection unit to project a projection image on a projection screen; a coordinate calculator to calculate coordinates of a point in the projection image when the point is identified by a coordinate input device; an interactive communication unit to perform communication related to the interactive input-output capability with the coordinate input device, and the external apparatus; an operation information converter to convert the calculated coordinates of the point and an operation information of the coordinate input device to an operation information for the image projection apparatus and the external apparatus; a distance calculator to calculate distance between the coordinate input device and the projection screen; and an input-action-reproducing determination unit to determine whether movement of coordinates of the point on the projection screen identified by the coordinate input device is reproduced depending on the calculated distance.