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:
Jan. 06, 2026
Filed:
Dec. 21, 2023
Christie Digital Systems Usa, Inc., Cypress, CA (US);
James Macpherson, Kitchener, CA;
CHRISTIE DIGITAL SYSTEMS USA, INC., Cypress, CA (US);
Abstract
A projector includes a light modulator, and a controller communicatively coupled to: an image source that provides frames to drive the light; and a light source arranged to illuminate the modulator according to colors. The controller, for a given image frame and given color: determines headroom of highest brightness pixels of the given frame, the headroom representing a difference between a peak brightness of a peak throughput of the modulator and a respective highest brightness associated with the highest brightness pixels; reduces a light source brightness to correspond to a peak light source brightness reduced by the headroom; controls highest brightness regions of the modulator to the peak throughput; and, based on reduced light source brightness, the controller controls lowest brightness regions of the modulator to a respective low-brightness throughput that maintains an about constant given low brightness output by the lowest brightness regions of the modulator across the frames.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile