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:
May. 10, 2005
Filed:
Apr. 08, 2003
Applicants:
Andreas Huber, Maisach, DE;
Herbert Kästle, Traunstein, DE;
Walter Limmer, Munich, DE;
Peter Niedermeier, Munich, DE;
Inventors:
Andreas Huber, Maisach, DE;
Herbert Kästle, Traunstein, DE;
Walter Limmer, Munich, DE;
Peter Niedermeier, Munich, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F001/00 ; H05B037/02 ;
U.S. Cl.
CPC ...
Abstract
Lighting system for high-pressure discharge lamps which can generate a lamp voltage UL which is amplitude and, if necessary, frequency-modulated. The frequency modulation is provided by an inverter whose inverter frequency is modulated. The inverter is fed by a clocked d.c. voltage supply which emits an operating voltage Uwhich is amplitude-modulated.