Patent ID: 6018435
Filing Date: 2000-01-25
Classification: G11B

Abstract:
A disk apparatus for accessing a disk medium having a data plane on which head positioning information and related record information are stored, comprising: a disk drive for driving the disk medium and recording the information on or reproducing the information from the disk medium, said disk drive having a head via which the information is to be recorded on or reproduced from the disk medium; and a disk control section for controlling said disk drive in accordance with instructions received from a higher-level device, said disk control section includingan identification section for identifying information regarding a first position on the disk medium at which said head positioning information is stored,a position calculation section for calculating a second position on the disk medium where recording/reproduction of said related record information is to be performed,a comparison and decision section for comparing the information regarding said first position, which is identified by said identification section, with said second position information, which is calculated by said position calculation section, upon each reception of a predetermined command from said higher-level device and for deciding whether or not said first position identified by said identification section is related to said second position at which said record information is to be recorded or reproduced, anda skip control section for carrying out a control such that when it is judged, on the basis of the result of the comparison made by said comparison and decision section, that said first position identified by said identification section is related to said second position at which recording/reproduction of said record information is to be performed, said first position identified by said identification section is skipped.