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:
May. 30, 2000
Filed:
Jun. 01, 1998
Wayne Cheung, San Jose, CA (US);
Mohammed Amine Hajji, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Access can be optimized to data strings hierarchically organized on a single disk drive where the data strings are address map defined and recorded in bands of contiguous tracks on a frequency usage basis. The bands are arranged such that each of the most frequently used strings are out-of-phase recorded several times on a counterpart track where the band is located toward the outer disk diameter. The least frequently used strings and sequential data strings are stored elsewhere on the same or other surfaces. A group of three or more bands provides for a more refined partitioning of the data strings on a frequency of usage or a recency of usage basis. The read/write transducer has its idle position over the outer diameter.