Patents by Inventor Kimlong Huynh

Kimlong Huynh 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).

  • LED-ILLUMINATED SIGN
    Publication number: 20090133302
    Abstract: An illuminated sign comprises two or more panels and a frame. The frame is positioned between the panels, so that the frame and the panels form a housing. A pattern made of a colored material, a light scattering material, a light reflecting material, or a combination of the above in various color is coupled to at least one of the panels and positioned inside the housing. LEDs are placed inside the housing to illuminate the pattern. The panels are made of transparent material. The frame can be an integral part of the front and rear panel.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Applicant: LITE STYLE ELECTRONICS, LLC
    Inventors: KIMLONG HUYNH, GIAO LE
  • Light emitting diode multiphase driver circuit and method
    Patent number: 7439944
    Abstract: A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provided in each conductive path. Increasing the input voltage turn on the string of LEDs, group by group in the sequence downstream the string. To reduce power dissipation, the phase switch of an upstream group is turned off when next downstream group is turned on.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: October 21, 2008
    Assignee: Lite Style Electronics, LLC
    Inventors: Kimlong Huynh, Vinhphu Quoc Tran
  • Light emitting diode multiphase driver circuit and method
    Publication number: 20060208669
    Abstract: A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provided in each conductive path. Increasing the input voltage turn on the string of LEDs, group by group in the sequence downstream the string. To reduce power dissipation, the phase switch of an upstream group is turned off when next downstream group is turned on.
    Type: Application
    Filed: May 22, 2006
    Publication date: September 21, 2006
    Inventors: Kimlong Huynh, Vinhrhu Tran
  • LIGHT EMITTING DIODE MULTIPHASE DRIVER CIRCUIT AND METHOD
    Publication number: 20060175985
    Abstract: A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provided in each conductive path. Increasing the input voltage turn on the string of LEDs, group by group in the sequence downstream the string. To reduce power dissipation, the phase switch of an upstream group is turned off when next downstream group is turned on.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 10, 2006
    Inventors: Kimlong Huynh, Vinhphu Tran
  • Light emitting diode multiphase driver circuit and method
    Patent number: 7081722
    Abstract: A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provided in each conductive path. Increasing the input voltage turn on the string of LEDs, group by group in the sequence downstream the string. To reduce power dissipation, the phase switch of an upstream group is turned off when next downstream group is turned on.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: July 25, 2006
    Inventors: Kimlong Huynh, Vinhphu Quoc Tran