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:
Jul. 04, 2023
Filed:
Jul. 21, 2022
Apple Inc., Cupertino, CA (US);
Behzad Mohtashemi, Los Gatos, CA (US);
Mohammad J Navabi-Shirazi, Phoenix, AZ (US);
Feng Guo, Santa Clara, CA (US);
Omar Alnaggar, Palo Alto, CA (US);
Venkataraman V Iyer, Sunnyvale, CA (US);
Jingdong Chen, San Jose, CA (US);
Yang Zhang, Saratoga, CA (US);
Ming Gu, San Jose, CA (US);
Asif Hussain, Clearwater, FL (US);
Apple Inc., Cupertino, CA (US);
Abstract
Systems and methods for preserving a pulse width modulation (PWM) resolution while increasing the frequency of a pulse width modulation (PWM) clock are provided. An electronic display backlight system may include a backlight element and backlight dimming circuitry. The backlight element may be driven according to a pulse width modulation (PWM) signal over a PWM clock cycle equal to a multiple M of a baseline PWM clock frequency associated with a baseline PWM resolution. The backlight dimming circuitry may receive a brightness code of the baseline PWM resolution and generate the PWM signal at least in part by dividing the brightness code by M.