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:
Mar. 12, 2019

Filed:

Nov. 15, 2017
Applicant:

Kouji Ohno, Chiba, JP;

Inventor:

Kouji Ohno, Chiba, JP;

Assignee:

Ricoh Company Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/54 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01); G09G 3/00 (2006.01); H04N 3/233 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3185 (2013.01); G03B 21/145 (2013.01); G09G 3/002 (2013.01); H04N 3/2335 (2013.01); H04N 9/3182 (2013.01); G03B 17/54 (2013.01); G03B 21/147 (2013.01);
Abstract

An image projection apparatus includes an image generation element to form an image using light emitted from a light source, a shift unit to shift a position of the image generation element when a pixel shift mode is set, circuitry to generate, when the pixel shift mode is set, images used for the pixel shift mode based on image data input to the image projection apparatus, perform keystone correction processing to the generated images, and cause the processed images to be projected as the image by reciprocally shifting the position of the image generation element, or to perform, when the pixel shift mode is not set, the keystone correction processing to image data input to the image projection apparatus to generate an image applied with the keystone correction processing, and project the generated image without shifting the position of the image generation element.


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