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. 26, 2012
Filed:
Sep. 05, 2006
Thomas C. Sloan, Santa Barbara, CA (US);
Thomas C. Sloan, Santa Barbara, CA (US);
The Sloan Company, Inc., Ventura, CA (US);
Abstract
A system and method is disclosed for illuminating a plurality of emitters such as light emitting diodes (LEDs). The system comprises a plurality of LEDs and a circuit to provide a digital signal. An LED drive circuit is included comprising a first converter for converting the digital signal to one or more analog voltages. The LED drive circuit further comprises a second converter that converts the one or more analog voltages into corresponding one or more drive currents. Each of the drive currents is applied to at least one of the plurality of LEDs to cause the at least one of the plurality of LEDs to emit light. The intensity of emission of the LEDs is related to the level of the applied drive current.