Patents by Inventor Roy Lewis

Roy Lewis 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).

  • Digital video and data recorder
    Patent number: 6865339
    Abstract: A “pause and resume” function and a “channel change” function for recording and playing interframe compressed audiovideo data, particularly MPEG data. The invention includes a digital track format and a method for recording one or more sessions from one or more streams of interframe compressed audiovideo data which has been synchronized to a reference clock. The invention adds special “splice point” indicators to recorded video material. The splice point indicators are added either periodically (e.g., by recording a special reference clock) or when a discontinuity occurs in recording audiovideo data streams. Splice point indicators are used to determine the existence of a point of discontinuity in the recorded audiovideo data. The system and method enable pausing and later resuming recording of an audiovideo data stream such that the audiovideo data can be played back with proper resynchronization at each point of discontinuity (the “pause and resume” function).
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: March 8, 2005
    Assignee: Indigita Corporation
    Inventors: Melvin Gable, Roy Lewis, William Caldwell
  • Method for forming diamonds from carbonaceous material
    Patent number: 6315871
    Abstract: A method for producing diamonds is provided comprising exposing carbonaceous material to ion irradiation at ambient temperature and pressure.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: November 13, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Tyrone Daulton, Roy Lewis, Lynn Rehn, Marquis Kirk
  • Digital video and data recorder
    Patent number: 6151443
    Abstract: A "pause and resume" function and a "channel change" function for recording and playing interframe compressed audiovideo data, particularly MPEG data. The invention includes a digital track format and a method for recording one or more sessions from one or more streams of interframe compressed audiovideo data which has been synchronized to a reference clock. The invention adds special "splice point" indicators to recorded video material. The splice point indicators are added either periodically (e.g., by recording a special reference clock) or when a discontinuity occurs in recording audiovideo data streams. Splice point indicators are used to determine the existence of a point of discontinuity in the recorded audiovideo data. The system and method enable pausing and later resuming recording of an audiovideo data stream such that the audiovideo data can be played back with proper resynchronization at each point of discontinuity (the "pause and resume" function).
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: November 21, 2000
    Assignee: Indigita Corporation
    Inventors: Melvin Gable, Roy Lewis, William Caldwell