Recording and/or reproducing apparatus, medium, and method controlling a write speed
AssigneeToshiba Samsung Storage Technology Korea Corporation
InventorsKun-ho Yun, Jong-tae An
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Abstract
A recording and/or reproducing apparatus, medium, and method controlling a write speed of a disk drive. The method may includes measuring a predetermined disk quality evaluating factor affecting a servo control performance in multiple areas of a disk, determining an optimal write speed of the areas of the disk corresponding to the disk quality evaluating factor, and controlling a rotation speed of the disk at an optimal write speed of a corresponding area of the disk, depending on a position of the disk in which writing is to be performed, in a writing mode.
Claims34
A method for controlling a write speed of a recording and/or reproducing apparatus, comprising:
- measuring a medium quality evaluating factor affecting a servo control performance in a plurality of areas of a medium;
- determining respective optimal write speeds for the plurality of areas of the medium based on a respective medium quality evaluating factor;
- and
- controlling, in a writing mode, a rotation speed of the medium at an optimal write speed, from the determined optimal write speeds, for a corresponding area of the medium, of the plurality of areas, to which writing is to be performed.
A recording and/or reproducing apparatus comprising:
- a controller to determine a position of a pickup over a medium during a writing mode, obtaining a corresponding optimal write speed information based on the determined position of the pickup, with obtainable optimal write speeds having been individually assigned particularly for each of a plurality of areas of the medium, and generating a control signal based on the obtained optimal write speed to control a rotation of the medium.
A method for controlling a write speed of a recording and/or reproducing apparatus, comprising:
- controlling rotation speeds of a medium at respective optimal write speeds for corresponding areas of the medium during writing to the respective corresponding areas,
- wherein the respective optimal write speeds are distinguishable from standard write speeds for the medium determined during a design/manufacturing stage or outside of the writing mode of the recording and/or reproducing apparatus.
Dependencies are inferred from the claim text.