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公开(公告)号:AU576859B2
公开(公告)日:1988-09-08
申请号:AU4268485
申请日:1985-05-17
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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2.
公开(公告)号:HU193370B
公开(公告)日:1987-09-28
申请号:HU187385
申请日:1985-05-17
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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3.
公开(公告)号:HUT38176A
公开(公告)日:1986-04-28
申请号:HU187385
申请日:1985-05-17
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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公开(公告)号:DD234518A5
公开(公告)日:1986-04-02
申请号:DD27642385
申请日:1985-05-16
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGER KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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公开(公告)号:DE3418526A1
公开(公告)日:1985-11-21
申请号:DE3418526
申请日:1984-05-18
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
IPC: G11B5/56 , G11B5/58 , G11B5/596 , G11B20/18 , G11B21/10 , G11B23/36 , G11B5/02 , G11B15/02 , G11B27/36
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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6.
公开(公告)号:DE3567549D1
公开(公告)日:1989-02-16
申请号:DE3567549
申请日:1985-05-14
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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7.
公开(公告)号:HK62289A
公开(公告)日:1989-08-11
申请号:HK62289
申请日:1989-08-03
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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公开(公告)号:DD234518C4
公开(公告)日:1987-01-28
申请号:DD27642385
申请日:1985-05-16
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGER KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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9.
公开(公告)号:ZA853730B
公开(公告)日:1986-01-29
申请号:ZA853730
申请日:1985-05-17
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
Abstract: A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors. An advantageous use is for all types of disk drives, preferably FlexyDisk drives.
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10.
公开(公告)号:ZA8503730B
公开(公告)日:1986-01-29
申请号:ZA8503730
申请日:1985-05-17
Applicant: BASF AG
Inventor: KRAUS GEROLD , HUBER WALTER , HACK JOACHIM , SCHULZE-BERGE KLAUS , SOLD ROLAND
CPC classification number: G11B23/36 , G11B5/59627 , G11B20/182
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