Patents by Inventor Tomonao Uchida

Tomonao Uchida 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).

  • Method of and apparatus for tracking appended data on storage medium
    Patent number: 6715033
    Abstract: A sequence of data blocks written onto a medium of a data storage system includes first and subsequent appended data blocks having an append point code for identifying the first appended data block location. For data blocks having a running block number or frame number, the block or frame number of the first appended data block is stored as the append point code. The appended point code identifies the most recently append point location and aids in processes, such as tracking calibration, data integrity confirmation and track positioning.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: March 30, 2004
    Assignees: Hewlett-Packard Development Company, L.C., Sony Corporation
    Inventors: Hideki Nonoyama, Tomonao Uchida, Robert Alan Williams, Nigel Kevin Rushton, Mark Robert Watkins
  • Method of and apparatus for tracking appended data on storage medium
    Publication number: 20030088731
    Abstract: A sequence of data blocks written onto a medium of a data storage system includes first and subsequent appended data blocks having an append point code for identifying the first appended data block location. For data blocks having a running block number or frame number, the block or frame number of the first appended data block is stored as the append point code. The appended point code identifies the most recently append point location and aids in processes, such as tracking calibration, data integrity confirmation and track positioning.
    Type: Application
    Filed: October 21, 2002
    Publication date: May 8, 2003
    Applicant: Hewlett-Packard Company and Sony Corporation
    Inventors: Hideki Nonoyama, Tomonao Uchida, Robert Alan Williams, Nigel Kevin Rushton, Mark Robert Watkins
  • Method of and apparatus for tracking appended data on storage medium
    Patent number: 6526482
    Abstract: In a data storage system in which a sequence of data blocks is written onto a medium, appended data is distinguished by including in the first and subsequent appended data blocks an append point code uniquely identifying the location of the first appended data block. Where the data blocks have a running block number or frame number, the block or frame number of the first appended data block is stored as the append point code. This clearly identifies the most recent append point location which will aid in processes such as tracking calibration data integrity confirmation and track positioning.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: February 25, 2003
    Assignees: Hewlett-Packard Company, Sony Corporation
    Inventors: Hideki Nonoyama, Tomonao Uchida, Robert Alan Williams, Nigel Kevin Rushton, Mark Robert Watkins
  • Recording tape medium, and apparatus for recording data on and recorded data from recording tape medium by helical scanning system
    Patent number: 6342983
    Abstract: A track format is prescribed so that an ST-AFN indicating the AFN of the streaming start position be written on each track, and at the time of reference value measurement, an append point is detected by monitoring coincidence between the AFT and the ST-AFN on the scanned track. And, on the basis of the detected append point, a reference value is measured for each streaming recorded area, and this reference value is held matched with the recording positional information of the streaming recorded area.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: January 29, 2002
    Assignee: Sony Corporation
    Inventors: Hideki Nonoyama, Tomonao Uchida