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:
Dec. 03, 2002
Filed:
Jul. 30, 1999
Richard A. Gill, Arvada, CO (US);
Robert Olin Wyman, Longmont, CO (US);
Benjamin Joseph Baron, Boulder, CO (US);
Randy Allen Fout, Lyons, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
An improved tape storage device having information for converting longitudinal physical positions written in a medium to logical positions used by a tape drive. The conversion information, an offset and an optional maximum physical position value, are stored in one or more locations in the tape storage device. Methods of operating the tape drive are disclosed to determine and store the conversion information in the tape storage device. Another method of operation enables the tape drive to read the conversion information and convert the physical positions to logical positions. The method works for both center loading and end loading medium. Possible numeric rollover of the physical positions is detected by one of several methods including the step values between adjacent physical positions, comparing the logical positions with an upper and lower boundary, and generating a lookup table where the rollover is represented by a wraparound between the top and bottom of the table.