Photo detector with compensated output and method involving same
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.
Streetlight Intelligence, Inc.
H
H01L
inventional
Gregory A. Pratibha J. David T. Gerald E. Yong Jeong James A.
Jacklin Sharma Anderson Kurz Cho Anderson