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:
May. 10, 2011
Filed:
Dec. 23, 2004
Sundar Natarajan Yoganandan, Helang, MY;
Thye Linn Mok, Rambai, MY;
Kian Shin Lee, Selamat, MY;
Norfidathul Aizar Abdul Karim, Ampat, MY;
Su Lin Oon, Nibong, MY;
Siew IT Pang, Lepas, MY;
Kheng Leng Tan, Jambul, MY;
Fakhrul Arifin Mohd Afif, Seksyen, MY;
Wen Ya Ou, Tokong, MY;
Yew Cheong Kuan, Dua, MY;
Sundar Natarajan Yoganandan, Helang, MY;
Thye Linn Mok, Rambai, MY;
Kian Shin Lee, Selamat, MY;
Norfidathul Aizar Abdul Karim, Ampat, MY;
Su Lin Oon, Nibong, MY;
Siew It Pang, Lepas, MY;
Kheng Leng Tan, Jambul, MY;
Fakhrul Arifin Mohd Afif, Seksyen, MY;
Wen Ya Ou, Tokong, MY;
Yew Cheong Kuan, Dua, MY;
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A light source and a method for operating the same are disclosed. The light source includes a light emitter and a controller. The light emitter generates light in response to a control signal coupled thereto. The light emitter is characterized by an age related to the amount of light that has been cumulatively generated by the light emitter, the generated light for a given control signal changing with the age. The controller measures the age of the light emitter and generates the control signal based on the desired light intensity and the measured age of the light emitter. In one embodiment, the controller stores an age value for the light emitter, and the controller determines the control signal in response to an input signal specifying a desired light intensity from the light emitter, the controller updating the age value each time the control signal is determined.