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:
Apr. 30, 2019
Filed:
Jun. 02, 2009
Applicants:
Philip O. Isaacson, Chanhassen, MN (US);
Josh D. Schilling, Eden Prairie, MN (US);
Inventors:
Philip O. Isaacson, Chanhassen, MN (US);
Josh D. Schilling, Eden Prairie, MN (US);
Assignee:
Nonin Medical, Inc., Plymouth, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/1455 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/14551 (2013.01); A61B 5/7221 (2013.01); A61B 5/7242 (2013.01); A61B 2560/0209 (2013.01);
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.