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:
Nov. 06, 2012
Filed:
Feb. 03, 2012
Applicants:
Yung Lin Lin, Palo Alto, CA (US);
Ching-chuan Kuo, Taipei, TW;
Inventors:
Yung Lin Lin, Palo Alto, CA (US);
Ching-Chuan Kuo, Taipei, TW;
Assignee:
O2Micro International Limited, Grand Cayman, KY;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A controller that monitors a rectified voltage and detects whether the rectified voltage comes from a TRIAC dimmer or an on/off switch dimmer is disclosed. The controller controls dimming of a light source according to the rectified voltage if the rectified voltage comes from the TRIAC dimmer. The controller controls dimming of the light source according to an operation of the on/off switch dimmer if the rectified voltage comes from the on/off switch dimmer.