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:
Sep. 06, 2022
Filed:
Jul. 14, 2020
Qualcomm Incorporated, San Diego, CA (US);
Liangguo Shen, San Diego, CA (US);
Joseph Dale Rutkowski, Chandler, AZ (US);
Sugato Mukherjee, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Certain aspects are directed to a circuit for brightness control. The circuit generally includes: a duty cycle adjustment circuit configured to receive a first backlight control signal having a first duty cycle and generate a second backlight control signal having a second duty cycle, the second duty cycle being greater than the first duty cycle if the first duty cycle is less than a threshold; a digital processor configured to set a value of a software brightness code based on the second duty cycle; and a backlight control circuit configured to drive a backlight in accordance with the software brightness code and the second duty cycle of the second backlight control signal.