Patents by Inventor David C. Byrd

David C. Byrd 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).

  • Low power, low cost illuminated keyboards and keypads
    Patent number: 7284872
    Abstract: Methods are provided for adapting existing manufacturing processes for non-illuminated data-entry devices and mouses to the manufacture of illuminated data-entry devices. Luminescent sheets of one or more colors underlying optically transmissive device components provide illumination of the components visual to a user of the device. The optically transmissive components may be doped with phosphors or tinted to provide components that emit light of different colors. The intensity of illumination of the luminescent sheet may be controlled by the user and may vary in response to the background light of the environment.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: October 23, 2007
    Inventors: Andrew Katrinecz, David C. Byrd
  • Low power, low cost illuminated keyboards and keypads
    Publication number: 20040223318
    Abstract: Methods are provided for adapting existing manufacturing processes for non-illuminated data-entry devices and mouses to the manufacture of illuminated data-entry devices. Luminescent sheets of one or more colors underlying optically transmissive device components provide illumination of the components visual to a user of the device. The optically transmissive components may be doped with phosphors or tinted to provide components that emit light of different colors. The intensity of illumination of the luminescent sheet may be controlled by the user and may vary in response to the background light of the environment.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Inventors: Andrew J. Katrinecz, David C. Byrd
  • Low power, low cost illuminated keyboards and keypads
    Patent number: 6773128
    Abstract: Methods are provided for adapting existing manufacturing processes for non-illuminated data-entry devices and mouses to the manufacture of illuminated data-entry devices. Luminescent sheets of one or more colors underlying optically transmissive device components provide illumination of the components visual to a user of the device. The optically transmissive components may be doped with phosphors or tinted to provide components that emit light of different colors. The intensity of illumination of the luminescent sheet may be controlled by the user and may vary in response to the background light of the environment.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: August 10, 2004
    Assignee: Twenty-First Century Technology, Inc.
    Inventors: Andrew J. Katrinecz, Jr., David C. Byrd
  • Low power, low cost illuminated keyboards and keypads
    Publication number: 20010002166
    Abstract: Methods are provided for adapting existing manufacturing processes for non-illuminated data-entry devices and mouses to the manufacture of illuminated data-entry devices. Luminescent sheets of one or more colors underlying optically transmissive device components provide illumination of the components visual to a user of the device. The optically transmissive components may be doped with phosphors or tinted to provide components that emit light of different colors. The intensity of illumination of the luminescent sheet may be controlled by the user and may vary in response to the background light of the environment.
    Type: Application
    Filed: January 4, 2001
    Publication date: May 31, 2001
    Applicant: Twenty First Century Technology, Inc.
    Inventors: Andrew J. Katrinecz, David C. Byrd
  • Low power, low cost illuminated keyboards and keypads
    Patent number: 6199996
    Abstract: Methods are provided for adapting existing manufacturing processes for non-illuminated data-entry devices and mouses to the manufacture of illuminated data-entry devices. Luminescent sheets of one or more colors underlying optically transmissive device components provide illumination of the components visual to a user of the device. The optically transmissive components may be doped with phosphors or tinted to provide components that emit light of different colors. The intensity of illumination of the luminescent sheet may be controlled by the user and may vary in response to the background light of the environment.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: March 13, 2001
    Assignee: Twenty-First Century Technology, Inc.
    Inventors: Andrew J. Katrinecz, Jr., David C. Byrd