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2008•IEEJ Transactions on Industry ApplicationsOpen access

Fast-Settling Control for Optical Disc Drives

Atsushi Okuyama

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Abstract

A fast-settling control method for the fine actuator system in an optical disc drive has been developed. The fast-settling control is performed by two-degree-of-freedom control, which uses the reference trajectory. The reference trajectory according to the initial state at mode switching between seeking and settling is determined by using a final-state control. Tests with a 16x DVD-ROM drive experimentally confirm that the proposed settling control significantly improves the settling capability.

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What this paper is about

A fast-settling control method for the fine actuator system in an optical disc drive has been developed. The fast-settling control is performed by two-degree-of-freedom control, which uses the reference trajectory. The reference trajectory according to the initial state at mode switching between seeking and settling is determined by using a final-state control. Tests with a 16x DVD-ROM drive experimentally confirm that the proposed settling control significantly improves the settling capability.

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Available abstract

A fast-settling control method for the fine actuator system in an optical disc drive has been developed. The fast-settling control is performed by two-degree-of-freedom control, which uses the reference trajectory. The reference trajectory according to the initial state at mode switching between seeking and settling is determined by using a final-state control. Tests with a 16x DVD-ROM drive experimentally confirm that the proposed settling control significantly improves the settling capability.

Key concepts: Settling, Settling time, Control theory (sociology), Trajectory, Actuator, Control (management), Computer science, Engineering

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