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:
Mar. 01, 2022
Filed:
Feb. 14, 2020
Applicant:
Sct Ltd., Grand Cayman, KY;
Inventors:
Eric Li, Milpitas, CA (US);
Yi Zhang, Milpitas, CA (US);
Shang-Kuan Tang, Milpitas, CA (US);
Shean-Yih Chiou, Milpitas, CA (US);
Assignee:
SCT LTD., Grand Cayman, KY;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 3/2014 (2013.01); G09G 2310/027 (2013.01); G09G 2320/064 (2013.01);
Abstract
An LED display system has and LED display panel coupled to a driver circuitry. The driver circuitry includes a scrambled PWM generator, a register, and a memory. The scrambled PWM generator receives an image data from an external source and, after certain compensations, is sent to a scramble PWM generator to be distributed according to a new set of rules that involves a compensation image data K. Image data K can be an empirical value or obtained according a formula using coefficients p and q, which can be obtained by calibration.