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:
Feb. 22, 2022
Filed:
Sep. 05, 2019
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Jon S. McElvain, Manhattan Beach, CA (US);
Walter C. Gish, Oak Park, CA (US);
Jonathan Robert Miller, Glendora, CA (US);
Gregory John Ward, Berkeley, CA (US);
Robin Atkins, Vancouver, CA;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
An auto exposure method for an image sensor includes (a) evaluating variance, for each of a plurality of histograms of the pixel values from a respective plurality of individual exposures of the image sensor at respective exposure 5 time settings, of contribution from individual bins of the histogram to total entropy of the histogram, to determine an optimal exposure time for the image sensor corresponding to a minimum value of the variance, and (b) outputting the optimal exposure time to the image sensor.