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:
Nov. 24, 2009
Filed:
Jun. 10, 2008
Dror Korcharz, Bat Yam, IL;
Arkadiy Peker, New Hyde Park, NY (US);
Alon Ferentz, Bat Yam, IL;
Roni Blaut, Netanya, IL;
Migel Jacubovski, Hod Hasharon, IL;
Dror Korcharz, Bat Yam, IL;
Arkadiy Peker, New Hyde Park, NY (US);
Alon Ferentz, Bat Yam, IL;
Roni Blaut, Netanya, IL;
Migel Jacubovski, Hod Hasharon, IL;
Microsemi Corp. - Analog Mixed Signal Group Ltd., Hod Hasharon, IL;
Abstract
A method of controlling the luminance of a luminaire on an individual frame basis, without affecting a slow acting color loop controlling the color temperature of the luminaire, the method comprising: receiving a reference value representative of a target color; receiving a luminance signal defining the luminance of the luminaire per frame; adjusting a modulated signal driving the luminaire directly responsive to the received luminance signal, thereby controlling the luminance of the luminaire per frame; sampling the optical output of the luminaire per frame; comparing a value responsive to the sampled optical output with a value responsive to the received reference value to output a difference signal; and further adjusting the modulated signal driving the luminaire responsive to the compared value so as to reduce the difference signal.