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. 24, 2011
Filed:
Jul. 05, 2007
Applicant:
David D. Miller, Austin, TX (US);
Inventor:
David D. Miller, Austin, TX (US);
Assignee:
Siemens Industry, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G 1/095 (2006.01);
U.S. Cl.
CPC ...
Abstract
A traffic signal is provided for controlling vehicular traffic. The traffic signal includes a light source () having a light emitting diode (LED) array (D, D, D, D). A power regulator () is associated with the light source and is constructed and arranged to control input current to the light source. A traffic signal controller () is remote from the light source and the power regulator. The traffic signal controller is constructed and arranged to provide an input voltage signal to the power regulator, with the input current being based on the input voltage signal.