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.

Date of Patent:
May. 30, 2017

Filed:

Jul. 12, 2013
Applicant:

Osram Opto Semiconductors Gmbh, Regensburg, DE;

Inventors:

Dirk Sossenheimer, Regensburg, DE;

Hubert Halbritter, Dietfurt, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01); G01J 1/16 (2006.01); H05B 37/02 (2006.01); G01J 1/02 (2006.01); G01J 1/44 (2006.01);
U.S. Cl.
CPC ...
G01J 1/4204 (2013.01); G01J 1/0233 (2013.01); G01J 1/16 (2013.01); G01J 1/4257 (2013.01); G01J 1/44 (2013.01); H05B 37/0218 (2013.01); G01J 2001/0257 (2013.01); G01J 2001/4247 (2013.01); Y02B 20/46 (2013.01);
Abstract

Fluctuation frequency (F) of an ambient light (S) is identified by: A) specifying first frequency (F) and second frequency (F), higher than said first frequency; B) measuring an optical power of the ambient light with a signal receiver () over a measuring time interval (Ti) during a total measuring time (T), which is shorter than or equal to a first cycle duration (P) belonging to the first frequency; C) detecting the optical power of the ambient light in a time series over the total measuring time; D) determining at least one detection feature for identifying the fluctuation frequency by evaluating the time series; and E) identifying the fluctuation frequency of the ambient light as the first frequency or as the second frequency using the at least one detection feature.


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