The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2004
Filed:
Oct. 21, 2002
Applicant:
Inventors:
Hideki Nonoyama, Tokyo, JP;
Tomonao Uchida, Tokyo, JP;
Robert Alan Williams, Bristol, GB;
Nigel Kevin Rushton, Bristol, GB;
Mark Robert Watkins, Bristol, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/202 ;
U.S. Cl.
CPC ...
G06F 1/202 ;
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.