会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Head control device, storage device, and contact detection method
    • 头控制装置,存储装置和接触检测方法
    • US07623314B2
    • 2009-11-24
    • US11998326
    • 2007-11-29
    • Satoshi YamashitaShunji SaitohYukio AbeShigenori Yanagi
    • Satoshi YamashitaShunji SaitohYukio AbeShigenori Yanagi
    • G11B21/02G11B27/36
    • G11B5/607G11B5/6076
    • A head control device for controlling, through thermal expansion of a heater, a position of a head for reading and writing data from and to a storage medium, includes a heater control unit that increases a current supplied to the heater stepwise; and an external-force sample retrieving unit that retrieves sampling values of signals each indicating a magnitude of an external force acting on the head in a moving direction of a head support mechanism. The head control device also includes an external-force evaluating unit that calculates a representative value of the sampling values retrieved by the external-force sample retrieving unit to evaluate the magnitude of the external force every time the heater control unit increases the current; and a contact detecting unit that detects contact between the head and the storage medium by comparing each evaluation result by the external-force evaluating unit with a predetermined threshold value.
    • 一种头控制装置,用于通过加热器的热膨胀来控制用于从存储介质读取和写入数据的头部的位置,其包括加热器控制单元,其逐步增加供应给加热器的电流; 以及外力取样单元,其检索各自表示在头部支撑机构的移动方向上作用在头部上的外力的大小的信号的采样值。 头部控制装置还包括外力评估单元,其计算由外力抽样检索单元检索出的取样值的代表值,以便每当加热器控制单元增加电流时评估外力的大小; 以及接触检测单元,其通过将外力评估单元的每个评估结果与预定阈值进行比较来检测头部和存储介质之间的接触。
    • 4. 发明申请
    • INFORMATION STORAGE APPARATUS FOR DETERMINING STABILITY
    • 用于确定稳定性的信息存储设备
    • US20090080104A1
    • 2009-03-26
    • US12206433
    • 2008-09-08
    • Yusuke KubotaTakeshi HaraYukio Abe
    • Yusuke KubotaTakeshi HaraYukio Abe
    • G11B21/02
    • G11B5/5534
    • According to an aspect of an embodiment, a storage apparatus has a head for writing data into or reading data from a medium, an actuator for moving the head and a controller for applying a driving current to the actuator so as to move the head to a target position over the medium, for superimposing a disturbance current onto the driving current, the controller including a feedback loop which adjusts the driving current so as to move the head toward the target position on the basis of the position data read out from the medium by the head, the controller being configured to determine a frequency characteristic of gain and phase of the feedback loop on the basis of the driving current and the disturbance current.
    • 根据实施例的一个方面,存储装置具有用于将数据写入或从介质读取数据的头,用于移动头的致动器和用于向致动器施加驱动电流的控制器,以将头移动到 目标位置在介质上,为了将干扰电流叠加到驱动电流上,控制器包括一个反馈回路,该反馈回路根据从介质读出的位置数据调整驱动电流以使头朝向目标位置移动, 所述控制器被配置为基于所述驱动电流和所述干扰电流来确定所述反馈回路的增益和相位的频率特性。
    • 6. 发明申请
    • Head control device, storage device, and contact detection method
    • 头控制装置,存储装置和接触检测方法
    • US20080218898A1
    • 2008-09-11
    • US11998326
    • 2007-11-29
    • Satoshi YamashitaShunji SaitohYukio AbeShigenori Yanagi
    • Satoshi YamashitaShunji SaitohYukio AbeShigenori Yanagi
    • G11B5/596G11B21/02
    • G11B5/607G11B5/6076
    • A head control device for controlling, through thermal expansion of a heater, a position of a head for reading and writing data from and to a storage medium, includes a heater control unit that increases a current supplied to the heater stepwise; and an external-force sample retrieving unit that retrieves sampling values of signals each indicating a magnitude of an external force acting on the head in a moving direction of a head support mechanism. The head control device also includes an external-force evaluating unit that calculates a representative value of the sampling values retrieved by the external-force sample retrieving unit to evaluate the magnitude of the external force every time the heater control unit increases the current; and a contact detecting unit that detects contact between the head and the storage medium by comparing each evaluation result by the external-force evaluating unit with a predetermined threshold value.
    • 一种头控制装置,用于通过加热器的热膨胀来控制用于从存储介质读取和写入数据的头部的位置,其包括加热器控制单元,其逐步增加供应给加热器的电流; 以及外力取样单元,其检索各自表示在头部支撑机构的移动方向上作用在头部上的外力的大小的信号的采样值。 头部控制装置还包括外力评估单元,其计算由外力抽样检索单元检索出的取样值的代表值,以便每当加热器控制单元增加电流时评估外力的大小; 以及接触检测单元,其通过将外力评估单元的每个评估结果与预定阈值进行比较来检测头部和存储介质之间的接触。
    • 10. 发明申请
    • Storage apparatus, control method, control device, and program
    • 存储装置,控制方法,控制装置和程序
    • US20080043363A1
    • 2008-02-21
    • US11645189
    • 2006-12-22
    • Satoshi YamashitaSyunji SaitouYukio AbeShigenori Yanagi
    • Satoshi YamashitaSyunji SaitouYukio AbeShigenori Yanagi
    • G11B21/02G11B27/36
    • G11B5/607
    • An amplitude measurement unit measures an amplitude of a read signal from a preamble unit in a servo area of a predetermined frame number m per one rotation of the recording medium for a predetermined cycle number n while increasing an electric power amount distributed to the heater in the state in which the head is positioned to a track on the recording medium, and a mean amplitude calculating unit calculates a mean amplitude from an amplitude measurement value which is measured by the number which is the frame number m multiplied by the cycle number n. A contact determination unit calculates a mean amplitude variation amount per a unit heater electric power amount as a contact determination value, and determines that the head is in contact with the recording medium when the contact determination value is lower than a predetermined threshold value, and a flying height calculating unit which calculates a flying height of the head with respect to the surface of the recording medium from the heater electric power amount at the point when contact is determined.
    • 幅度测量单元在预定周期数n的每一记录介质旋转的预定帧数m的伺服区域中的前导码单元中测量读取信号的幅度,同时增加分配给加热器的电力量 头部位于记录介质上的轨迹的状态,平均幅度计算单元根据作为帧数m乘以周期数n的数量测量的振幅测量值来计算平均振幅。 接触确定单元计算每单位加热器电力量的平均幅度变化量作为接触确定值,并且当接触确定值低于预定阈值时,确定头与记录介质接触,并且 飞行高度计算单元,其根据确定接触点处的加热器电力量,计算头部相对于记录介质表面的飞行高度。