Patents by Inventor Philip W. Jones

Philip W. Jones 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).

  • System for write once read many optical storage devices to appear rewritable
    Patent number: 5218685
    Abstract: A system for Write Once Read Many (WORM) optical storage devices to appear rewritable uses magnetic disk storage and optical WORM storage subsystem. All new write operations are made to a magnetic cache storage which resides on the magnetic disk subsystem. A Least Recently Written (LRW) technique is used to determine which valid data in cache storage is the oldest and must be transfered to optical storage to make room for new data. In this manner all new write operations are performed to the magnetic cache storage and only the oldest valid data is transferred to optical disk, optimizing its use.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: June 8, 1993
    Assignee: General Electric Company
    Inventor: Philip W. Jones