Patents by Inventor Wesley W. Chan

Wesley W. Chan 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).

  • Advanced technology attachment compatible disc drive write protection scheme
    Patent number: 6738879
    Abstract: A disc drive storage system and device for use with a host computer is provided in which information contained on the disc drive can be write protected with an ATA compatible write protection scheme. The system includes at least one rotatable disc having a disc surface with a plurality of physical memory locations referenced by the host computer through logical block addresses. The physical memory locations include data storage locations and attribute storage locations that store protection status information corresponding to the data storage locations. A disc controller receives write protection commands that are compatible with an ATA data exchange protocol from the host. These write protection commands relate to the write protection status information of at least one logical block address. The controller executes the write protection commands to thereby implement a write protection scheme compatible with the ATA data exchange protocol.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: May 18, 2004
    Assignee: Seagate Technology LLC
    Inventors: Wesley W. Chan, Patrick T. Wong, YongPeng Chng, Kareen C. Ee, EngKuan Ooi
  • Advanced technology attachment compatible disc drive write protection scheme
    Publication number: 20020007437
    Abstract: A disc drive storage system and device for use with a host computer is provided in which information contained on the disc drive can be write protected with an ATA compatible write protection scheme. The system includes at least one rotatable disc having a disc surface with a plurality of physical memory locations referenced by the host computer through logical block addresses. The physical memory locations include data storage locations and attribute storage locations that store protection status information corresponding to the data storage locations. A disc controller receives write protection commands that are compatible with an ATA data exchange protocol from the host. These write protection commands relate to the write protection status information of at least one logical block address. The controller executes the write protection commands to thereby implement a write protection scheme compatible with the ATA data exchange protocol.
    Type: Application
    Filed: May 18, 2001
    Publication date: January 17, 2002
    Inventors: Wesley W. Chan, Patrick T. Wong, YongPeng Chng, Kareen C. Ee, EngKuan Ooi