公开(公告)号：US07277253B2

公开(公告)日：2007-10-02

申请号：US11358455

申请日：2006-02-21

申请人： Satoshi Yamashita ,  Takeshi Hara ,  Yoshifumi Obara

发明人： Satoshi Yamashita ,  Takeshi Hara ,  Yoshifumi Obara

IPC分类号： G11B21/02

CPC分类号： G11B21/12 ,  G11B5/54 ,  G11B21/22

摘要： A storage device configured to load and unload a head against a storage medium, includes a latch mechanism configured to latch the unloaded head, a head moving mechanism configured to move the head, a measuring part configured to measure an unlatch force necessary for unlatching the head latched by the latch mechanism, by applying a constant electrical current to the head mechanism so that the head is moved in a load direction, by measuring a back electromotive voltage, and calculating a moving speed and acceleration of the head, a storing part configured to store information indicating the measured unlatch force in the storage device, and a control part configured to apply a driving electrical current corresponding to the stored information to the head moving mechanism where the head is latched by the latch mechanism at the time of loading.

公开(公告)号：US20070064331A1

公开(公告)日：2007-03-22

申请号：US11358455

申请日：2006-02-21

申请人： Satoshi Yamashita ,  Takeshi Hara ,  Yoshifumi Obara

发明人： Satoshi Yamashita ,  Takeshi Hara ,  Yoshifumi Obara

IPC分类号： G11B21/02

CPC分类号： G11B21/12 ,  G11B5/54 ,  G11B21/22

摘要： A storage device configured to load and unload a head against a storage medium, includes a latch mechanism configured to latch the unloaded head, a head moving mechanism configured to move the head, a measuring part configured to measure an unlatch force necessary for unlatching the head latched by the latch mechanism, by applying a constant electrical current to the head mechanism so that the head is moved in a load direction, by measuring a back electromotive voltage, and calculating a moving speed and acceleration of the head, a storing part configured to store information indicating the measured unlatch force in the storage device, and a control part configured to apply a driving electrical current corresponding to the stored information to the head moving mechanism where the head is latched by the latch mechanism at the time of loading.

摘要翻译： 一种构造成将头部装载和卸载存储介质的存储装置，包括构造成闩锁未装载头部的闩锁机构，构造成移动头部的头部移动机构，被配置成测量解除头部所需的解锁力的测量部件 通过锁定机构锁定，通过向头机构施加恒定的电流，使得头沿负载方向移动，通过测量反电动势电压，并计算头的移动速度和加速度，存储部件被配置为 存储指示所述存储装置中的所述解锁力的信息;以及控制部，被配置为将与所存储的信息相对应的驱动电流施加到所述头移动机构，在所述头移动机构中，所述头在所述装载时由所述闩锁机构锁定。

公开(公告)号：US20090059415A1

公开(公告)日：2009-03-05

申请号：US12121101

申请日：2008-05-15

申请人： Takeshi Hara ,  Yoshifumi Obara ,  Yukio Abe ,  Shigenori Yanagi ,  Mitsuo Kamimura

发明人： Takeshi Hara ,  Yoshifumi Obara ,  Yukio Abe ,  Shigenori Yanagi ,  Mitsuo Kamimura

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59688

摘要： A storage device receives and holds a storage medium that is subjected to first servo writing processing for writing servo information, a Gray code of which is offset, from an inner cylinder or an outer cylinder to a predetermined cylinder and, after the first servo writing processing, subjected to second servo writing processing for writing servo information from an opposite direction to the predetermined cylinder and in which Gray codes are written to be offset not to overlap in the first or second servo writing processing and the pieces of servo information having different mark patterns are written in the first servo writing processing and the second servo writing processing. The storage device acquires cylinder information and mark patterns from the servo information written in the held storage medium and controls a position of a head based on the acquired cylinder information and mark patterns.

摘要翻译： 存储装置接收并保持经历了第一伺服写入处理的存储介质，用于将格雷码从内圆筒或外圆筒写入预定圆柱体，并且在第一伺服写入处理之后 经过第二伺服写入处理，用于将伺服信息从与预定气缸相反的方向写入，并且其中格雷码被写入以在第一或第二伺服写入处理中不重叠，并且具有不同标记图案的伺服信息 写入第一伺服写入处理和第二伺服写入处理。 存储装置从记录在保持的存储介质中的伺服信息中取得圆筒信息和标记图案，并根据获取的圆筒信息和标记图案来控制头部的位置。

公开(公告)号：US20080043357A1

公开(公告)日：2008-02-21

申请号：US11646996

申请日：2006-12-28

申请人： Yoshifumi Obara ,  Takeshi Hara

发明人： Yoshifumi Obara ,  Takeshi Hara

IPC分类号： G11B5/09

CPC分类号： G11B5/09 ,  G11B5/59622 ,  G11B20/10009 ,  G11B20/10027 ,  G11B2220/2516

摘要： Before a system area of the storage device is read immediately after the activation of the storage device, a read signal is output from a magnetic head to read servo information in the system area. An HDIC amplifies gain of the read signal as first gain amplification. Then, a VGA in a read channel amplifies gain of the read signal after the first gain amplification as second gain amplification. The read signal for the servo information is amplified by two stages of amplifiers to a level sufficient to demodulate the servo information.

摘要翻译： 在存储设备激活之后立即读取存储设备的系统区域之前，从磁头输出读取信号以读取系统区域中的伺服信息。 HDIC将读取信号的增益放大为第一增益放大。 然后，读通道中的VGA将第一增益放大后的读信号的增益放大为第二增益放大。 用于伺服信息的读取信号由两级放大器放大到足以解调伺服信息的电平。

公开(公告)号：US20070291394A1

公开(公告)日：2007-12-20

申请号：US11584720

申请日：2006-10-20

申请人： Takeshi Hara ,  Yoshifumi Obara

发明人： Takeshi Hara ,  Yoshifumi Obara

IPC分类号： G11B21/02 ,  G11B19/02

CPC分类号： G11B5/54 ,  G11B21/12 ,  G11B21/22

摘要： A storage medium (magnetic disk) in a storage device (magnetic disk device) includes a disk that stores therein data, a head that reads and writes data, a voice motor coil (VCM) that controls the head, and a ramp where the head is retracted. The storage device detects a current used for speed control during unloading of the head, and determines whether the current exceeds a predetermined value. The storage device detects a head position where the current exceeds a predetermined value as a ramp position, stores the ramp position, and unloads the head based on the ramp position.

摘要翻译： 存储装置（磁盘装置）中的存储介质（磁盘）包括其中存储有数据的磁盘，读取和写入数据的磁头，控制磁头的语音电机线圈（VCM）以及磁头 被收回。 存储装置检测在头部卸载期间用于速度控制的电流，并且确定电流是否超过预定值。 存储装置检测电流超过预定值的磁头位置作为斜坡位置，存储斜坡位置，并且基于斜坡位置卸载磁头。

公开(公告)号：US20070064329A1

公开(公告)日：2007-03-22

申请号：US11315946

申请日：2005-12-22

申请人： Yoshifumi Obara ,  Takao Abe ,  Takeshi Hara

发明人： Yoshifumi Obara ,  Takao Abe ,  Takeshi Hara

IPC分类号： G11B5/09

CPC分类号： G11B5/59627

摘要： A calculating unit calculates an interval time from a detection of a servo sync mark until a detection of an adjacent servo sync mark, for all servo sync marks on a track of a disk-shaped recording medium. A measuring unit measures, based on the calculated interval time, a deviation amount between a link interval time that represents the interval time between a servo sync mark recorded first and a servo sync mark recorded last and an ideal interval time that represents the link interval time when it is assumed that all the servo sync marks on the track are written at equal intervals.

摘要翻译： 计算单元对于盘形记录介质的轨道上的所有伺服同步标记，计算从伺服同步标记的检测到相邻伺服同步标记的检测的间隔时间。 测量单元基于所计算的间隔时间来测量代表首先记录的伺服同步标记与最后记录的伺服同步标记之间的间隔时间的链接间隔时间与表示链路间隔时间的理想间隔时间之间的偏差量 当假设轨道上的所有伺服同步标记以相等的间隔被写入时。

公开(公告)号：US20090059419A1

公开(公告)日：2009-03-05

申请号：US12175130

申请日：2008-07-17

申请人： Takeshi Hara ,  Yoshifumi Obara ,  Shigenori Yanagi

发明人： Takeshi Hara ,  Yoshifumi Obara ,  Shigenori Yanagi

IPC分类号： G11B5/58

CPC分类号： G11B5/5526 ,  G11B5/59633 ,  G11B5/59688

摘要： According to an aspect of an embodiment, an apparatus, includes: a medium having inner and outer edges and including first and second servo regions extending radially, and containing first and second servo information written thereon, respectively, the first servo region extending outwardly from the inner edge to cover tracks, the first and second servo region having positioned adjacently across a circular boundary; a head for reading out said first servo information and said second servo information; and a processor for executing a process comprising: reading out the first or second servo information; and when controlling the track position across the boundary, adjusting the relation of the first and second servo information across the boundary in control the track position.

摘要翻译： 根据实施例的一个方面，一种装置包括：具有内边缘和外边缘并且包括第一和第二伺服区域径向延伸并且分别包含第一和第二伺服信息的介质，所述第一和第二伺服区域分别从其上写入， 内边缘覆盖轨道，第一和第二伺服区域相邻地定位在圆形边界上; 用于读出所述第一伺服信息和所述第二伺服信息的头; 以及用于执行处理的处理器，包括：读出所述第一或第二伺服信息; 并且当控制跨越边界的轨道位置时，在控制轨迹位置时调整跨越边界的第一和第二伺服信息的关系。

公开(公告)号：US07486466B2

公开(公告)日：2009-02-03

申请号：US11584720

申请日：2006-10-20

申请人： Takeshi Hara ,  Yoshifumi Obara

发明人： Takeshi Hara ,  Yoshifumi Obara

IPC分类号： G11B21/02

CPC分类号： G11B5/54 ,  G11B21/12 ,  G11B21/22

摘要： A storage medium (magnetic disk) in a storage device (magnetic disk device) includes a disk that stores therein data, a head that reads and writes data, a voice motor coil (VCM) that controls the head, and a ramp where the head is retracted. The storage device detects a current used for speed control during unloading of the head, and determines whether the current exceeds a predetermined value. The storage device detects a head position where the current exceeds a predetermined value as a ramp position, stores the ramp position, and unloads the head based on the ramp position.

摘要翻译： 存储装置（磁盘装置）中的存储介质（磁盘）包括其中存储有数据的磁盘，读取和写入数据的磁头，控制磁头的语音电机线圈（VCM）以及磁头 被收回。 存储装置检测在头部卸载期间用于速度控制的电流，并且确定电流是否超过预定值。 存储装置检测电流超过预定值的磁头位置作为斜坡位置，存储斜坡位置，并且基于斜坡位置卸载磁头。

公开(公告)号：US07719784B2

公开(公告)日：2010-05-18

申请号：US12175130

申请日：2008-07-17

申请人： Takeshi Hara ,  Yoshifumi Obara ,  Shigenori Yanagi

发明人： Takeshi Hara ,  Yoshifumi Obara ,  Shigenori Yanagi

IPC分类号： G11B21/02 ,  G11B5/58 ,  G11B5/596

CPC分类号： G11B5/5526 ,  G11B5/59633 ,  G11B5/59688

摘要： According to an aspect of an embodiment, an apparatus, includes: a medium having inner and outer edges and including first and second servo regions extending radially, and containing first and second servo information written thereon, respectively, the first servo region extending outwardly from the inner edge to cover tracks, the first and second servo region having positioned adjacently across a circular boundary; a head for reading out said first servo information and said second servo information; and a processor for executing a process comprising: reading out the first or second servo information; and when controlling the track position across the boundary, adjusting the relation of the first and second servo information across the boundary in control the track position.

摘要翻译： 根据实施例的一个方面，一种装置包括：具有内边缘和外边缘并且包括第一和第二伺服区域径向延伸并且分别包含第一和第二伺服信息的介质，所述第一和第二伺服区域分别从其上写入， 内边缘覆盖轨道，第一和第二伺服区域相邻地定位在圆形边界上; 用于读出所述第一伺服信息和所述第二伺服信息的头; 以及用于执行处理的处理器，包括：读出所述第一或第二伺服信息; 并且当控制跨越边界的轨道位置时，在控制轨迹位置时调整跨越边界的第一和第二伺服信息的关系。

公开(公告)号：US07706094B2

公开(公告)日：2010-04-27

申请号：US12121101

申请日：2008-05-15

申请人： Takeshi Hara ,  Yoshifumi Obara ,  Yukio Abe ,  Shigenori Yanagi ,  Mitsuo Kamimura

发明人： Takeshi Hara ,  Yoshifumi Obara ,  Yukio Abe ,  Shigenori Yanagi ,  Mitsuo Kamimura

IPC分类号： G11B21/02 ,  G11B5/596 ,  G11B20/20 ,  G11B5/09

CPC分类号： G11B5/59633 ,  G11B5/59688

摘要： A storage device receives and holds a storage medium that is subjected to first servo writing processing for writing servo information, a Gray code of which is offset, from an inner cylinder or an outer cylinder to a predetermined cylinder and, after the first servo writing processing, subjected to second servo writing processing for writing servo information from an opposite direction to the predetermined cylinder and in which Gray codes are written to be offset not to overlap in the first or second servo writing processing and the pieces of servo information having different mark patterns are written in the first servo writing processing and the second servo writing processing. The storage device acquires cylinder information and mark patterns from the servo information written in the held storage medium and controls a position of a head based on the acquired cylinder information and mark patterns.

摘要翻译： 存储装置接收并保持经历了第一伺服写入处理的存储介质，用于将格雷码从内圆筒或外圆筒写入预定圆柱体，并且在第一伺服写入处理之后 经过第二伺服写入处理，用于将伺服信息从与预定气缸相反的方向写入，并且其中格雷码被写入以在第一或第二伺服写入处理中不重叠，并且具有不同标记图案的伺服信息 写入第一伺服写入处理和第二伺服写入处理。 存储装置从记录在保持的存储介质中的伺服信息中取得圆筒信息和标记图案，并根据获取的圆筒信息和标记图案来控制头部的位置。