SLIDING MODE CONTROL OF MAGNETORESISTIVE READ HEAD FOR MAGNETIC RECORDING

PROBLEM TO BE SOLVED: To provide a sliding mode controller for controlling the motion of a magnetoresistive (MR) read head actuated by a voice coil motor over a rotating magnetic disk storage medium. SOLUTION: The magnetic disk 4 includes a plurality of concentric data tracks recorded on the surface...

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Bibliographic Details
Main Authors ROMANO PAUL M, SUPINO LOUIS
Format Patent
LanguageEnglish
Published 18.03.2010
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Abstract PROBLEM TO BE SOLVED: To provide a sliding mode controller for controlling the motion of a magnetoresistive (MR) read head actuated by a voice coil motor over a rotating magnetic disk storage medium. SOLUTION: The magnetic disk 4 includes a plurality of concentric data tracks recorded on the surface, and each data track includes user data and servo data. The sliding mode controller 26 operates by multiplying a head position error phase state and a head position error speed phase state by respective switching gains to force the phase states to follow a predetermined phase state trajectory. The phase state trajectory is defined by a single linear segment , a variable linear segment, multiple linear segments over the entire region of excursion, or optimal parabolic acceleration and deceleration segments. COPYRIGHT: (C)2010,JPO&INPIT
AbstractList PROBLEM TO BE SOLVED: To provide a sliding mode controller for controlling the motion of a magnetoresistive (MR) read head actuated by a voice coil motor over a rotating magnetic disk storage medium. SOLUTION: The magnetic disk 4 includes a plurality of concentric data tracks recorded on the surface, and each data track includes user data and servo data. The sliding mode controller 26 operates by multiplying a head position error phase state and a head position error speed phase state by respective switching gains to force the phase states to follow a predetermined phase state trajectory. The phase state trajectory is defined by a single linear segment , a variable linear segment, multiple linear segments over the entire region of excursion, or optimal parabolic acceleration and deceleration segments. COPYRIGHT: (C)2010,JPO&INPIT
Author ROMANO PAUL M
SUPINO LOUIS
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Snippet PROBLEM TO BE SOLVED: To provide a sliding mode controller for controlling the motion of a magnetoresistive (MR) read head actuated by a voice coil motor over...
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SubjectTerms INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Title SLIDING MODE CONTROL OF MAGNETORESISTIVE READ HEAD FOR MAGNETIC RECORDING
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