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. 25, 1982
Filed:
Dec. 26, 1979
Applicant:
Inventor:
Jorgen Frandsen, Winnipeg, CA;
Assignee:
Burroughs Corporation, Detroit, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360106 ; 310 13 ; 360 78 ; 360 97 ;
Abstract
An improved disk file is disclosed including a number of like transducer/actuator arrays disposed about a common disk (stack) and adapted, on the one hand, to allocate track coverage while, on the other hand, also providing (optional) a 'back up' track coverage capability--whereby each actuator array is assigned a different track set (set of adjacent tracks in the file) as its 'primary responsibility', also being assigned a back-up coverage responsibility over another adjacent track set as its 'secondary' responsibility--this overall arrangement resulting in such benefits as 'multiple paths to data'.