Patents by Inventor Asim M. Siddiqui

Asim M. Siddiqui 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).

  • Light guide for display light enhancement
    Patent number: 9720158
    Abstract: A display in a portable information handling system may have a narrow or no border. A light guide for display light enhancement used to illuminate the display may be formed with concave indentations at a first face that receives light from a light source, such as a string of light emitting diodes. The concave indentations may improve the homogeneity of light transmitted by the light guide. The light guide may further have a light diffusive surface treatment at the first face.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: August 1, 2017
    Assignee: Dell Products L.P.
    Inventors: Stefan Peana, Mark Andrew Schwager, Asim M. Siddiqui
  • LIGHT GUIDE FOR DISPLAY LIGHT ENHANCEMENT
    Publication number: 20160363707
    Abstract: A display in a portable information handling system may have a narrow or no border. A light guide for display light enhancement used to illuminate the display may be formed with concave indentations at a first face that receives light from a light source, such as a string of light emitting diodes. The concave indentations may improve the homogeneity of light transmitted by the light guide. The light guide may further have a light diffusive surface treatment at the first face.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 15, 2016
    Inventors: Stefan Peana, Mark Andrew Schwager, Asim M. Siddiqui
  • Systems and methods for backlighting image displays
    Patent number: 7876058
    Abstract: Systems and methods for backlighting an image display by independently driving multiple backlights for the display. The display may be, for example, a LCD display panel of a portable information handling system such as a battery-powered notebook computer that employs two or more cold cathode fluorescent lamps (CCFLs) for backlighting the LCD display. The multiple backlights may be independently driven, for example, using a common inverter that is capable of independently driving two or more backlight lamps, or by driving each backlight lamp with a separate inverter.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: January 25, 2011
    Assignee: Dell Products L.P.
    Inventors: Erin L. Price, Asim M. Siddiqui, James A. Yasukawa
  • Systems and methods for backlighting image displays
    Publication number: 20080315785
    Abstract: Systems and methods for backlighting an image display by independently driving multiple backlights for the display. The display may be, for example, a LCD display panel of a portable information handling system such as a battery-powered notebook computer that employs two or more cold cathode fluorescent lamps (CCFLs) for backlighting the LCD display. The multiple backlights may be independently driven, for example, using a common inverter that is capable of independently driving two or more backlight lamps, or by driving each backlight lamp with a separate inverter.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Erin L. Price, Asim M. Siddiqui, James A. Yasukawa