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US 2003/0214747 A1Published application
Servo writing method for hard disk drives
OwnerDebasis Baralinventor
Life of this patent
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Abstract
A method for writing servo information in a hard disk drive. The method includes initially writing a seed servo pattern with a servo writer and then self writing the rest of the servo patterns with the heads of the drive. Each head should preferably have a write element that is sufficiently offset from a read element toward an inner diameter of the disks. This will insure that the heads will not write over an existing servo pattern.
Claims11
A method for writing servo information in a hard disk drive, comprising:
- writing a seed servo pattern on a track of a disk with a servo writer;
- reading the seed servo pattern with a head of the hard disk drive;
- moving the head to an adjacent track;
- and,
- writing a servo pattern on the adjacent track with the head of the hard disk drive.
2 more elements
A hard disk drive, comprising:
- a base plate;
- a spindle motor coupled to said base plate;
- a disk coupled to said spindle motor, said disk having an inner diameter;
- an actuator arm mounted to said base plate;
- a voice coil motor coupled to said actuator arm;
- a plurality of flexure beams coupled to said actuator arm;
- a plurality of heads coupled to said flexure beams and said disk, each head having a read element and a write element, each write element being offset from said read element toward the inner diameter of the disk;
- and,
- a controller coupled to said heads and said voice coil motor.
6 more elements
A hard disk drive, comprising:
- a base plate;
- a spindle motor coupled to said base plate;
- a disk coupled to said spindle motor, said disk having a seed servo pattern and a plurality of servo patterns;
- an actuator arm mounted to said base plate;
- a voice coil motor coupled to said actuator arm;
- a flexure beam coupled to said actuator arm;
- a head coupled to said flexure beam and said disk;
- and
- a controller coupled to said head and said voice coil motor.
6 more elements
Dependencies are inferred from the claim text.