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:
Feb. 03, 2009
Filed:
Nov. 18, 2003
Sree Venkit, Naperville, IL (US);
Ramakrishnan Venkatraman, Aurora, IL (US);
Amr Ghazala, Warren, NJ (US);
Sree Venkit, Naperville, IL (US);
Ramakrishnan Venkatraman, Aurora, IL (US);
Amr Ghazala, Warren, NJ (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A striation correction circuitis arranged to apply a first striation correction current to the first fluorescent lamp Land a second striation correction current to the second fluorescent lamp L. A first voltage appearing across the first fluorescent tube Ldue to the first striation correction current is substantially similar in magnitude but has inverted polarity with respect to a second voltage across the second fluorescent tube Ldue to the second striation correction current. Detection of an end-of-life condition of a fluorescent lamp is facilitated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile