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1.发明专利
公开(公告)号：JP2010061799A
公开(公告)日：2010-03-18
申请号：JP2009256586
申请日：2009-11-09
Applicant: Cirrus Logic Inc , シーラス ロジック,インコーポレイテッドCirrus Logic,Inc.
Inventor： ROMANO PAUL M , SUPINO LOUIS
CPC classification number: G11B5/59683 , G11B5/5547 , G11B2005/0016
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
Abstract translation: 要解决的问题：提供一种滑动模式控制器，用于控制由音圈电机在旋转磁盘存储介质上驱动的磁阻（MR）读头的运动。 解决方案：磁盘4包括记录在表面上的多个同心数据磁道，每个数据磁道包括用户数据和伺服数据。 滑动模式控制器26通过将头部位置误差相位状态和头部位置误差速度相位状态乘以相应的切换增益来操作，以迫使相位状态遵循预定的相位状态轨迹。 相位状态轨迹由单个线性段，可变线性段，整个偏移区域上的多个线性段或优化的抛物线加速和减速段来定义。 版权所有（C）2010，JPO＆INPIT
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2.发明专利
公开(公告)号：JP2009217927A
公开(公告)日：2009-09-24
申请号：JP2009115063
申请日：2009-05-11
Applicant: Cirrus Logic Inc , シーラス ロジック,インコーポレイテッドCirrus Logic,Inc.
Inventor： ROMANO PAUL M , SUPINO LOUIS
CPC classification number: G11B5/59683 , G11B5/5547 , G11B2005/0016
Abstract: PROBLEM TO BE SOLVED: To provide a low-cost, more efficient magnetic disk servo control system that compensates for non-linear gain variations associated with MR read heads.
SOLUTION: A position error X149 is multiplied by a positive gain 47 or a negative gain 48 depending on the state of a switch 46 to generate an acceleration command U53 as input to the controlled system 44. The output of an integrator 54 is the velocity of a controlled system which is also the negative -X255 of the position error velocity. When the switch 46 selects the positive gain 47, it is a negative feedback system, and when the switch 46 selects the negative gain 48, it is a positive feedback system. In each of the structures, the system is unstable. However, the system can be made stable by repeatedly switching between the two structures.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种低成本，更高效的磁盘伺服控制系统，其补偿与MR读取头相关联的非线性增益变化。 解决方案：位置误差X149根据开关46的状态乘以正增益47或负增益48，以产生加速指令U53作为对受控系统44的输入。积分器54的输出为 受控系统的速度也是位置误差速度的负-X255。 当开关46选择正增益47时，它是负反馈系统，并且当开关46选择负增益48时，它是正反馈系统。 在每个结构中，系统不稳定。 然而，可以通过在两个结构之间重复切换来使系统变得稳定。 版权所有（C）2009，JPO＆INPIT
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3.发明专利Optical disk drive storage system, method for controlling movement of optical lead head, and sliding mode controller 审中-公开光盘驱动器存储系统，控制光头运动的方法和滑模控制器
公开(公告)号：JP2009004095A
公开(公告)日：2009-01-08
申请号：JP2008256797
申请日：2008-10-01
Applicant: Cirrus Logic Inc , シーラス ロジック,インコーポレイテッドCirrus Logic,Inc.
Inventor： SUPINO LOUIS , ROMANO PAUL M , REIFF FRANCIS H
CPC classification number: G11B7/0946 , G05B13/0255 , G11B7/08529 , G11B7/0908
Abstract: PROBLEM TO BE SOLVED: To provide an optical disk drive servo control system in which sensitivity to a change in parameter is not so high, and transition can be controlled more favorably and the implementing cost of a complex adaptive linear controller is eliminated.
SOLUTION: The optical disk storage system is provided with a sliding mode controller for actuating an optical lead head assembly on an optical disk during focus capturing, focus tracking, track seeking and centerline tracking. The sliding mode controller operates by switching feedback between a positive state and a negative state so as to follow a predetermined phase state track by allocating a certain phase state (e.g., position error or speed of the lead head).
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种光盘驱动器伺服控制系统，其中对参数变化的灵敏度不那么高，并且可以更有利地控制转换，并且消除了复杂的自适应线性控制器的实现成本。 解决方案：光盘存储系统设置有滑动模式控制器，用于在聚焦捕获，聚焦跟踪，跟踪寻找和中心线跟踪期间致动光盘上的光引导头组件。 滑动模式控制器通过在正状态和负状态之间切换反馈来操作，以便通过分配一定的相位状态（例如，引导头的位置误差或速度）来跟随预定的相位状态轨迹。 版权所有（C）2009，JPO＆INPIT
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4.发明专利Optical disk drive memory system, method for controlling movement of optical read head, and sliding mode controller 审中-公开光盘驱动存储器系统，用于控制光读头的运动的方法和滑模控制器
公开(公告)号：JP2007035278A
公开(公告)日：2007-02-08
申请号：JP2006307240
申请日：2006-11-13
Applicant: Cirrus Logic Inc , シーラス ロジック,インコーポレイテッドCirrus Logic,Inc.
Inventor： SUPINO LOUIS , ROMANO PAUL M , REIFF FRANCIS H
CPC classification number: G11B7/0946 , G05B13/0255 , G11B7/08529 , G11B7/0908
Abstract: PROBLEM TO BE SOLVED: To provide an optical disk drive servo control system having not so high sensitivity to a parameter change, capable of controlling transition better and reducing the performance cost of a complex adaptive linear controller. SOLUTION: The optical disk memory system is provided with a sliding mode controller 23 actuating an optical read head assembly on an optical disk during focus capture, focus tracking, track seek and center line tracking. This sliding mode controller operates while switching positive and negative feedback to follow a prescribed phase state locus by fitting a prescribed phase state (e.g. position error and speed of a read head). COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供一种对参数变化灵敏度不高的光盘驱动器伺服控制系统，能够更好地控制转换并降低复杂自适应线性控制器的性能成本。 解决方案：光盘存储器系统设置有滑动模式控制器23，其在聚焦捕获，聚焦跟踪，跟踪寻找和中心线跟踪期间致动光盘上的光学读取头组件。 该滑动模式控制器在通过拟合规定的相位状态（例如位置误差和读取头的速度）来切换正和负反馈以跟随规定的相位状态轨迹时进行操作。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2005050519A
公开(公告)日：2005-02-24
申请号：JP2004265484
申请日：2004-09-13
Applicant: Cirrus Logic Inc , サーラス・ロジック・インコーポレーテッド
Inventor： ROMANO PAUL M
CPC classification number: G11B5/54
Abstract: PROBLEM TO BE SOLVED: To provide a voice coil motor control circuit and a method. SOLUTION: The voice coil motor (VCM) control circuit (10) controls a motor operation to position a disk drive head and actuator arm assembly (202). A data processor (220) is continuously updated with the current position and relative radial velocity of the disk drive head (206) and actuator arm assembly (208). The data processor (220) provides signals to a digital-analog converter (DAC) of the VCM control circuit (10) representative of the amount of energy necessary to move the head and actuator arm assembly to a parking position from a current operating position. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种音圈电机控制电路及方法。 解决方案：音圈电机（VCM）控制电路（10）控制电动机操作以定位盘驱动头和致动器臂组件（202）。 数据处理器（220）以盘驱动头（206）和致动器臂组件（208）的当前位置和相对径向速度连续地更新。 数据处理器（220）向VCM控制电路（10）的数模转换器（DAC）提供代表将头部和致动器臂组件从当前操作位置移动到驻车位置所需的能量的量。 版权所有（C）2005，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JPH1021557A
公开(公告)日：1998-01-23
申请号：JP7019397
申请日：1997-03-24
Applicant: CIRRUS LOGIC INC
Inventor： SUPINO LOUIS , ROMANO PAUL M , REIFF FRANCIS H
Abstract: PROBLEM TO BE SOLVED: To provide an optical disk drive servo control system having not so high sensitivity to a parameter change, capable of controlling transition better and reducing the execution cost of a complex adaptive linear controller. SOLUTION: The optical disk memory system is provided with a sliding mode controller 23 actuating an optical read head assembly on an optical disk 14 during focus capture, focus tracking, track seek and center line tracking. This sliding mode controller 23 operates while switching positive and negative feedback to follow a prescribed phase state locus by fitting a prescribed phase state (e.g. position error and speed of read head).
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7.发明专利
公开(公告)号：JP2007220301A
公开(公告)日：2007-08-30
申请号：JP2007142615
申请日：2007-05-29
Applicant: Cirrus Logic Inc , シーラス ロジック, インコーポレイテッド
Inventor： ROMANO PAUL M , SUPINO LOUIS
CPC classification number: G11B5/59683 , G11B5/5547 , G11B2005/0016
Abstract: PROBLEM TO BE SOLVED: To provide a sliding mode controller for controlling the motion of a magneto-resistive (MR) read head.
SOLUTION: A magnetic disk comprises a plurality of concentric data tracks recorded thereon wherein each data track comprises user data and servo data. The sliding mode controller operates by multiplying a head position error phase state and a head position error velocity phase state by respective switching gains to force the phase states to follow a predetermined phase state trajectory. The phase state trajectory can be defined by a single linear segment, a variable linear segment, multiple linear segments over the entire region of excursion, or optimum parabolic acceleration and deceleration segments. Switching logic, responsive to the phase states and a trajectory segment value σ, switches between positive and negative feedback gains to drive the phase states toward a current trajectory segment.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种用于控制磁阻（MR）读取头的运动的滑动模式控制器。 解决方案：磁盘包括记录在其上的多个同心数据轨道，其中每个数据轨道包括用户数据和伺服数据。 滑动模式控制器通过将头部位置误差相位状态和头部位置误差速度相位状态乘以相应的切换增益来操作，以迫使相位状态遵循预定的相位状态轨迹。 相位状态轨迹可以由单个线性段，可变线性段，整个移动区域上的多个线性段或最佳抛物线加速和减速段来定义。 响应于相位状态和轨迹段值σ的开关逻辑在正和负反馈增益之间切换以将相位状态驱动到当前轨迹段。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：ES2149886T3
公开(公告)日：2000-11-16
申请号：ES94928012
申请日：1994-08-31
Applicant: CIRRUS LOGIC INC
Inventor： ROMANO PAUL M
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9.发明申请
公开(公告)号：WO9704446A3
公开(公告)日：1997-04-17
申请号：PCT/IB9601128
申请日：1996-07-12
Applicant: CIRRUS LOGIC INC
Inventor： ROMANO PAUL M , SUPINO LOUIS
CPC classification number: G11B5/59683 , G11B5/5547 , G11B2005/0016
Abstract: 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. The magnetic disk comprises a plurality of concentric data tracks recorded thereon wherein each data track comprises user data and servo data. The sliding mode controller operates by multiplying a head position error phase state and a head position error velocity phase state by respective switching gains to force the phase states to follow a predetermined phase state trajectory. The phase state trajectory can be defined by a single linear segment, a variable linear segment, multiple linear segments over the entire region of excursion, or optimum parabolic acceleration and deceleration segments. Switching logic, responsive to the phase states and a trajectory segment value σ, switches between positive and negative feedback gains to drive the phase states toward a current trajectory segment. A σ processing block monitors the phase states to determine when to switch from a current trajectory segment to the next trajectory segment. The resulting servo control system is relatively inexpensive to implement in either software or hardware, and it is substantially insensitive to parametric changes, external load disturbances, and nonlinearities inherent in controlling MR read heads. Further, it does not require notch filters commonly used in conventional linear controllers to compensate for mechanical resonances.
Abstract translation: 公开了一种滑动模式控制器，用于控制通过旋转磁盘存储介质由音圈电机致动的磁阻（MR）读头的运动。 磁盘包括记录在其上的多个同心数据磁道，其中每个数据磁道包括用户数据和伺服数据。 滑动模式控制器通过将头部位置误差相位状态和头部位置误差速度相位状态乘以相应的切换增益来操作，以迫使相位状态遵循预定的相位状态轨迹。 相位状态轨迹可以由单个线性段，可变线性段，整个移动区域上的多个线性段或最佳抛物线加速和减速段来定义。 响应于相位状态和轨迹段sigma的开关逻辑在正和负反馈增益之间切换以将相位状态驱动到当前轨迹段。 西格玛处理块监视相位状态以确定何时从当前轨迹段切换到下一轨迹段。 所得到的伺服控制系统在软件或硬件中实现相对便宜，并且对于控制MR读取头固有的参数变化，外部负载扰动和非线性实质上不敏感。 此外，它不需要通常用于常规线性控制器的陷波滤波器来补偿机械谐振。
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公开(公告)号：EP0813737A1
公开(公告)日：1997-12-29
申请号：EP96910407
申请日：1996-03-06
Applicant: CIRRUS LOGIC INC
Inventor： SUPINO LOUIS , ROMANO PAUL M
CPC classification number: G11B5/59683 , G11B5/5547 , G11B2005/0016
Abstract: A sliding mode controller for controlling the motion of a read/write head actuated by a voice coil motor over a rotating magnetic disk storage medium. The magnetic disk comprises a plurality of concentric data tracks recorded thereon wherein each data track comprises user data and servo data. The sliding mode controller operates by multiplying a head position error phase state and a head position error velocity phase state by respective switching gains to force the phase states to follow a predetermined phase state trajectory. The phase state trajectory can be defined by a single linear segment, a variable linear segment, multiple linear segments over the entire region of excursion, or optimum parabolic acceleration and deceleration segments. Switching logic, responsive to the phase states and a trajectory segment value σ, switches between positive and negative feedback gains to drive the phase states toward a current trajectory segment. A σ processing block monitors the phase states to determine when to switch from a current trajectory segment to the next trajectory segment. The resulting servo control system is relatively inexpensive to implement in either software or hardware, and it is substantially insensitive to parametric changes and external load disturbances. Further, it does not require notch filters commonly used in conventional linear controllers to compensate for mechanical resonances.
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