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.

Date of Patent:
Dec. 20, 2016

Filed:

Jul. 31, 2014
Applicant:

Ricoh Company, Limited, Tokyo, JP;

Inventors:

Otoichi Nakata, Kanagawa, JP;

Fumihiro Nakashige, Kanagawa, JP;

Shinichi Sumiyoshi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 5/02 (2006.01); G09G 5/12 (2006.01); G09G 5/08 (2006.01); G09G 5/04 (2006.01);
U.S. Cl.
CPC ...
G09G 5/10 (2013.01); G09G 5/026 (2013.01); G09G 5/08 (2013.01); G09G 5/12 (2013.01); G09G 5/04 (2013.01); G09G 2320/0666 (2013.01); G09G 2320/0693 (2013.01); G09G 2354/00 (2013.01);
Abstract

An image projection device includes: a drive control unit that generates colors sequentially; a setting unit that sets a color of an illumination image; an image capturing control unit that receives, from the drive control unit, a synchronization signal that specifies a timing at which light of a color closest to the set color of the illumination image is not projected and causes an image of a projection surface to be captured in accordance with the timing that is specified by the synchronization signal; an illumination image detection unit that detects, from captured image data, an illumination image that is produced by illuminating the projection surface by an illuminating device; and an illumination image generation unit that generates projection image data obtained by combining given image data at a position at which the illumination image is detected.


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