Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Philip O. Isaacson0
Josh D. Schilling0
Date of Patent
April 30, 2019
0Patent Application Number
124766870
Date Filed
June 2, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A system and method for controlling a light emitting device for an optical sensor based on signal quality and/or power consumption requirements. Drive current and/or integration time is controlled as a function of detected ambient light or signal quality. As the signal quality decreases the drive current or integration time can be adjusted to provide a more usable signal. If after some criteria for reduction, such as “time on” or high signal quality, then the drive current can be decreased.
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