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:
Apr. 29, 2003
Filed:
Oct. 26, 1999
Don Wilford Wallentine, Mantua, UT (US);
Mark Dale Thornley, Layton, UT (US);
George Paul Jackson, Hooper, UT (US);
Iomega Corporation, Roy, UT (US);
Abstract
The present invention relates to a data recovery technique for recovering unrecoverable data from a sector having a synchronization field damaged after formatting time or a synchronization mark that has been written improperly. The present invention may try conventional or traditional data recovery techniques first, but if these techniques are ineffective, these techniques can be bypassed in favor of an additional recovery mode. Based upon overall design parameters of a disk drive system and the recording medium format, the disk drive firmware estimates a synchronization mark starting position, analyzes the accuracy of that position and when re-synchronization has not yet occurred, the firmware makes iterative estimates within a window relative to the starting position, and analyzes these subsequent positions for accuracy as well. Once a synchronization mark is located, the data in the sector can be recovered.