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. 20, 2001
Filed:
Jul. 09, 1999
Hiroshi Uno, Kawasaki, JP;
Tomohisa Oyama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A disk control section of a disk apparatus comprises an identification section for identifying information regarding a position at which the head positioning servo information is stored, a position calculation unit for calculating the position on a disk medium where recording/reproduction of the record information is to be performed, a comparison and decision unit for comparing the information regarding the position identified by the identification unit with the position information calculated by the position calculation unit each time a predetermined command is received from the higher-level device, and for deciding whether or not the position identified by the identification unit is the position at which the record information is to be recorded on or reproduced, and a skip recording/reproduction unit for carrying out control such that when it is judged, on the basis of the result of the comparison made by the comparison and decision unit, that the position identified by the identification unit is the position at which recording/reproduction of the record information is to be performed, the record information is recorded/reproduced while skipping the position identified by the identification unit. Accordingly, it becomes possible to record and reproduce variable-length data even in a sector-servo type disk apparatus and a hybrid type disk apparatus, so that their storage capacities can be used effectively. In addition, recording and reproduction of data can be performed at high speed.