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:
Aug. 23, 2016
Filed:
Mar. 29, 2011
Christian Müller, Deuerling, DE;
Christian Müller, Deuerling, DE;
OSRAM OPTO SEMICONDUCTORS GMBH, Regensburg, DE;
Abstract
The invention relates to a unit () for determining the dominant light source type in electromagnetic radiation () incident on the unit () and generated from a plurality of light sources of different types. The unit comprises at least one first photodiode () designed to detect electromagnetic radiation in the visible spectral range and to generate a first output signal (). The unit comprises at least one second photodiode () designed to detect electromagnetic radiation in the infrared spectral range and to generate a second output signal (). The unit comprises at least one calculation unit () designed to derive a quotient result () and a frequency result () from the first () and second () output signals. The frequency result () provides information about the presence or absence of signal components in a predetermined frequency range contained in the electromagnetic radiation. The unit comprises at least one evaluation unit () designed to derive the dominant light source type from the quotient result () and the frequency result ().