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:
Jun. 05, 2007
Filed:
Jan. 18, 2005
Applicants:
Walter J. Downey, Los Gatos, CA (US);
Jacques H. Wilson, Ii, Carmel Valley, CA (US);
Inventors:
Walter J. Downey, Los Gatos, CA (US);
Jacques H. Wilson, II, Carmel Valley, CA (US);
Assignee:
Echelon Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/613 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit for use with a power supply coupled in a switched leg of, for example, a lighting circuit, is described. The circuit provides a low impedance near the zero crossing of the AC signal and a high impedance thereafter, thereby allowing the power supply to draw current that bypasses, for instance, a light bulb.