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:
Jan. 14, 2014
Filed:
Jul. 23, 2010
Gregory Campbell, Quincy, MA (US);
Igor Shikh, Newton Center, MA (US);
Gregory Campbell, Quincy, MA (US);
Igor Shikh, Newton Center, MA (US);
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A method for providing universal voltage input to a solid state lighting fixture () supplied by an AC line voltage includes converting an analog voltage signal corresponding to the line voltage to digital values indicating a waveform of the line voltage (S) and calculating slopes corresponding to rising edges of the waveform using select values of the digital values (S). A value of the line voltage is determined based on the calculated slopes (S).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile