Patents by Inventor Drew Ferrie

Drew Ferrie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multiple LED control apparatus and method
    Patent number: 7258463
    Abstract: One embodiment of a system for illuminating multiple LEDs has a plurality of LEDs and a controller programmed to provide a plurality of serial binary signals, each of which drives a respective one of the plurality of LEDs. Each of the serial binary signals has a series of pulses with each of said plurality of LEDs emitting light during each pulse of its respective one of the serial binary signals. The emitting intensity of each of the plurality of LEDs depends on the number of pulses in its respective one of the serial binary signals, wherein the light from the plurality of LEDs combines to emit a color of light.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 21, 2007
    Assignee: SloanLED, Inc.
    Inventors: Thomas C. Sloan, Drew Ferrie
  • Multiple LED control apparatus and method
    Publication number: 20050007035
    Abstract: One embodiment of a system for illuminating multiple LEDs comprises a plurality of LEDs and a controller programmed to provide a plurality of serial binary signals, each of which drives a respective one of the plurality of LEDs. Each of the serial binary signals comprises a series of pulses with each of said plurality of LEDs emitting light during each pulse of its respective one of the serial binary signals. The emitting intensity of each of the plurality of LEDs depends on the number of pulses in its respective one of the serial binary signals, wherein the light from the plurality of LEDs combines to emit a color of light.
    Type: Application
    Filed: May 19, 2004
    Publication date: January 13, 2005
    Inventors: Thomas Sloan, Drew Ferrie