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:
Jul. 29, 2003
Filed:
Jan. 11, 2002
Applicant:
Inventor:
Chin Chang, Yorktown Heights, NY (US);
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/51 ;
U.S. Cl.
CPC ...
G01J 3/51 ;
Abstract
The invention provides a method of determining tristimulus values for light emitting diode illuminants. A localized transformation matrix is determined based on a set of spectral responsivity data and a set of color-matching functions. A set of color responses associated with light emitted from the light emitting diode illuminants may be measured, and an estimate of tristimulus values based on the localized transformation matrix and the set of color responses may be determined.
Chang, Chin. (2003). Method of extended color sense and estimation for rgb led illuminants (U.S. Patent No. 6600562). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6600562
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile