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. 10, 2012
Filed:
Jan. 22, 2010
Applicants:
Jingwei Xu, Shanghai, CN;
Xianwei Zeng, Shanghai, CN;
Xianghao Meng, Shanghai, CN;
Inventors:
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 41/16 (2006.01); H05B 41/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for generating an actuation signal for a light source is provided. A random phase delay for each period of an input signal is generated, where each period is a predetermined length. Each phase delay is added to a predetermined actuation period to generate a sum. The sum is compared to the predetermined length. At least one turn-on and at least one turn-off for each period of the input signal is calculated from the comparison of the sum to the predetermined length, and the actuation signal having each turn-on and each turn-off is generated.