Patents by Inventor Rodney Bumgardner

Rodney Bumgardner 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).

  • REFLECTIVE MICRODISPLAY FOR PORTABLE COMMUNICATION SYSTEM
    Publication number: 20010017604
    Abstract: The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a display for a portable communication device. A handset for the communication system incorporates the display for use as, for example, a wireless telephone or paging device. The small display can provide a high resolution color image at low power thus providing for portable battery powered operation.
    Type: Application
    Filed: November 10, 1997
    Publication date: August 30, 2001
    Inventors: JEFFREY JACOBSEN, JOHN C. C. FAN, STEPHEN A. POMBO, MATTHEW ZAVRACKY, RODNEY BUMGARDNER, ALAN RICHARD, WEN-FOO CHERN
  • Low power active display system
    Patent number: 6232937
    Abstract: The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system has an alternating common voltage which allows reduced power consumption. In addition an internal heating system in the display allows the system to be used at low temperatures. The system can employ an LED illumination system and cellular communication or processor circuits within a compact housing to provide communication devices such as pagers, telephones, televisions, and hand held computer or card reader devices with a compact high resolution data and/or video display.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: May 15, 2001
    Assignee: Kopin Corporation
    Inventors: Jeffrey Jacobsen, John C. C. Fan, Stephen A. Pombo, Matthew Zavracky, Rodney Bumgardner, Alan Richard, Wen-Foo Chern
  • Wireless telephone display system
    Patent number: 6073034
    Abstract: The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED illumination system and cellular communication or processor circuits within a compact housing to provide communication devices such as pagers, telephones, televisions, and hand held computer or card reader devices with a compact high resolution data and/or video display.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: June 6, 2000
    Assignee: Kopin Corporation
    Inventors: Jeffrey Jacobsen, John C. C. Fan, Stephen A. Pombo, Matthew Zavracky, Rodney Bumgardner, Alan Richard
  • Portable communication display device
    Patent number: D420671
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: February 15, 2000
    Assignee: Kopin Corporation
    Inventors: Jeffrey Jacobsen, John C. C. Fan, Stephen Pombo, Rodney Bumgardner
  • Portable communication display device
    Patent number: D427587
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: July 4, 2000
    Assignee: Kopin Corporation
    Inventors: Jeffrey Jacobsen, John C. C. Fan, Stephen Pombo, Rodney Bumgardner