Patents by Inventor James W. Eldridge

James W. Eldridge 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).

  • Media streamer with control node enabling same isochronous streams to appear simultaneously at output ports or different streams to appear simultaneously at output ports
    Patent number: 5668948
    Abstract: A media streamer (10) includes at least one storage node (16, 17) for storing a digital representation of a video presentation. The Video presentation requires a time T to present in its entirety, and is stored as a plurality of N data blocks, each data block storing data corresponding approximately to a T/N period of the video presentation.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: September 16, 1997
    Assignee: International Business Machines Corporation
    Inventors: William Russell Belknap, Louise Irene Cleary, James W. Eldridge, Larry William Fitchett, Stephen G. Luning, Christopher S. Murray, Howard T. Olnowich, Ashok Raj Saxena, Karl David Schubert, Buddy Floyd Stansbury
  • Apparatus and method for recording over defects in storage media
    Patent number: 5442638
    Abstract: Storage media defect areas that are too large to be managed by ECC processing alone and sufficiently small that read/write head clock synchronization can be maintained over the defect area, are managed by a fill pattern recording scheme in which an offset register indicates the beginning of a defect area and a fill pattern is recorded over the defect area while ECC processing is halted. Data recording is resumed after the defect area is passed. In this way, the number of times sector skipping must be used for a storage media is reduced, thereby making more efficient use of the storage media surface area.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: August 15, 1995
    Assignee: International Business Machines Corporation
    Inventors: Joseph C. Awad, James W. Eldridge, David G. Foote, Norman K. Ouchi