Patents by Inventor David Hum

David Hum 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).

  • Reconfigurable LED Array and Use in Lighting System
    Publication number: 20100231135
    Abstract: A light-emitting device capable of being powered by an AC power supply or an unregulated DC power supply is disclosed. The light-emitting device, in an aspect, is coupled to a controller, a light-emitting diode (“LED”) array, and a power supply, wherein the power supply can be an AC power source or an unregulated DC power source. While the power supply provides electrical power, the controller generates various LED control signals in response to power fluctuation of the electrical power. The LED array allows at least a portion of LEDs to be activated in accordance with the logic states of the LED control signals.
    Type: Application
    Filed: July 17, 2009
    Publication date: September 16, 2010
    Applicant: Bridgelux,Inc.
    Inventors: David Hum, Steve Lester
  • LED ARRAY PACKAGE COVERED WITH A HIGHLY THERMAL CONDUCTIVE PLATE
    Publication number: 20100133556
    Abstract: A light source includes a substrate, a light emitting diode on the substrate, and a phosphor layer over the light emitting diode. A plate is on the phosphor layer. An attachment member is coupled to the plate and is configured to conduct heat away from the plate.
    Type: Application
    Filed: June 18, 2009
    Publication date: June 3, 2010
    Applicant: Bridgelux, Inc.
    Inventors: Jianhua Li, Rene Helbing, David Hum