Image projection device

US9524696B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9524696-B2
Application numberUS-201414447866-A
CountryUS
Kind codeB2
Filing dateJul 31, 2014
Priority dateAug 6, 2013
Publication dateDec 20, 2016
Grant dateDec 20, 2016

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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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.

First claim

Opening claim text (preview).

What is claimed is: 1. An image projection device comprising: a color wheel: a sensor that detects a timing of rotation of the color wheel and outputs a detection signal; a drive control unit to control a sequential generation of light colors, the generation of light colors creating an illumination image using a light source and the rotation of the color wheel, the drive control unit outputting a synchronization signal based on the detection signal output by the sensor; a se…

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What does patent US9524696B2 cover?
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 …
Who is the assignee on this patent?
Ricoh Co Ltd
What technology area does this patent fall under?
Primary CPC classification G09G5/10. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).