Correction information recording method, correction information recording circuit and information storage device
AssigneeFujitsu Limited
InventorKazunori MORI
Life of this patent
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Abstract
A method and device of recording RRO correction information including recording first RRO correction information on a first track in one of servo frames of a recording medium and recording second RRO correction information on a second track different from the first recording track at a position different from a position of the first RRO correction information with respect to a peripheral direction.
Claims8
A method of recording RRO correction information on a recording medium comprising:
- recording first RRO correction information corresponding to a first recording track on a first track in one of plural servo frames;
- and
- recording second RRO correction information corresponding to a second recording track different from the first recording track on a second track at a position different from a position of the first RRO correction information with respect to a time axis in a servo frame concerned.
An RRO correction information recording circuit for recording RRO correction information on a recording medium, comprising:
- a recording instructing unit for instructing to record first RRO correction information corresponding to a first recording track on a first track in one of plural servo frames, and instructing to record second RRO correction information corresponding to a second recording track different from the first recording track on a second track at a position different from a position of the first RRO correction information with respect to a time axis;
- and
- a recording unit for recording RRO correction information in response to an instruction of the recording instructing unit.
An information recording device, comprising:
- a recording medium in which plural servo frames are intermittently provided along a time axis of the recording medium;
- and
- an RRO correction information recording circuit including:
- a recording instructing unit for instructing to record first RRO correction information corresponding to a first recording track on a first track in one of the plural servo frames, and instructing to record second RRO correction information corresponding to a second recording track different from the first recording track on a second track at a position different from a position of the first RRO correction information with respect to the time axis, and
- a recording unit for recording RRO correction information in response to an instruction of the recording instructing unit.
A method of recording correction information, comprising:
- recording correction data over adjacent tracks of a storage medium at alternate positions of the adjacent tracks with respect to a time axis of a target track;
- and
- controlling a reading of the correction data recorded by adjusting a timing of the reading from the target track relative to reading of the adjacent tracks.
Dependencies are inferred from the claim text.