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:
Apr. 05, 2022
Filed:
Jul. 19, 2018
Sharp Nec Display Solutions, Ltd., Tokyo, JP;
Hisakazu Aoyanagi, Tokyo, JP;
SHARP NEC DISPLAY SOLUTIONS, LTD., Tokyo, JP;
Abstract
A projector includes a light source; a spatial light modulator; a signal processing unit that includes a tone map unit that performs a luminance gradation conversion of an input video data according to a tone map indicating a relationship of an output luminance with respect to an input luminance; a luminance acquiring unit that obtains a maximum luminance of a projection surface of the modulated light; and a control unit that controls an amount of light of the light source and sets the tone map. When the maximum luminance of the projection surface is equal to or greater than a first threshold value indicating a maximum luminance of the input video data, the control unit sets, to the tone map unit, a tone map in which a maximum value of the output luminance is set to be the first threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile