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:
Oct. 27, 2009
Filed:
Jun. 28, 2006
Pratibha Sharma, Victoria, CA;
Gerald E. Kurz, Brentwood Bay, CA;
Yong Jeong Cho, Victoria, CA;
James A. Anderson, Brentwood Bay, CA;
J. David T. Anderson, Brentwood Bay, CA;
Gregory A. Jacklin, Saanichton, CA;
Pratibha Sharma, Victoria, CA;
Gerald E. Kurz, Brentwood Bay, CA;
Yong Jeong Cho, Victoria, CA;
James A. Anderson, Brentwood Bay, CA;
J. David T. Anderson, Brentwood Bay, CA;
Gregory A. Jacklin, Saanichton, CA;
Streetlight Intelligence, Inc., Victoria, BC, CA;
Abstract
A method of compensating a photo sensor (and a corresponding photo sensor with compensation) insures the accuracy of the photo sensor, e.g., over environmental variations or photo cell variations. The method comprises: providing a first signal indicative of a light level; providing a second signal indicative of an environmental parameter, e.g., temperature; and calculating, responsive to the first signal and the second signal, a compensated signal that is indicative of an absolute light level. The calculating can be performed by a processor and utilize calibration and compensation information or parameters, which can be obtained experimentally.