公开(公告)号：US08605563B2

公开(公告)日：2013-12-10

申请号：US12960171

申请日：2010-12-03

申请人： Shuichi Minamiguchi ,  Hiroharu Sakai ,  Hajime Nishimura

发明人： Shuichi Minamiguchi ,  Hiroharu Sakai ,  Hajime Nishimura

IPC分类号： G11B7/00 ,  G11B20/18 ,  G11B7/20 ,  G11B3/70 ,  G11B17/00

CPC分类号： G11B7/005 ,  G11B7/00736 ,  G11B7/08511 ,  G11B7/126 ,  G11B2007/0013

摘要： An optical disc device comprising: a controller for reading data from an optical disc having a plurality of recording layers, wherein: the controller, in shifting a focus of the laser light from a first layer to a second layer, performs a first change that changes a setting on the high frequency signal to a predetermined value at which the high frequency signal is superimposed to suppress peak power of the drive signal if a light density of the second layer is higher than a light density of the first layer; the controller shifts the focus from the first layer to the second layer; and the controller, after the focus has been shifted, performs a second change that changes the setting on the high frequency signal to a predetermined value at which the high frequency signal is superimposed to increase the peak power of the drive signal.

摘要翻译： 一种光盘装置，包括：控制器，用于从具有多个记录层的光盘读取数据，其中：所述控制器在将激光的焦点从第一层移动到第二层时，执行改变的第一改变 如果所述第二层的光密度高于所述第一层的光密度，则将所述高频信号的设置设置为叠加所述高频信号的预定值，以抑制所述驱动信号的峰值功率; 控制器将焦点从第一层移动到第二层; 并且控制器在焦点移动之后执行将高频信号上的设置改变为叠加高频信号的预定值的第二改变，以增加驱动信号的峰值功率。

公开(公告)号：US08406100B2

公开(公告)日：2013-03-26

申请号：US13030281

申请日：2011-02-18

申请人： Hiroharu Sakai ,  Koji Kaniwa ,  Hajime Nishimura

发明人： Hiroharu Sakai ,  Koji Kaniwa ,  Hajime Nishimura

IPC分类号： G11B7/09

CPC分类号： G11B7/09

摘要： In an optical disc device, a way of canceling a lens shift due to an electric offset of an output of a tracking actuator driving circuit is desired. A tracking servo control circuit contains a first operation mode for setting an output current of the tracking actuator driving circuit to generally zero and a second operation mode for supplying a predetermined potential to the input. An average potential of a push-pull signal detected in the first operation mode is acquired. An object lens is moved by a predetermined amount in both radial directions by changing a potential supplied in the second mode to acquire correlative relationship between average potential of a push-pull signal relative to a lens movement amount and the supplied potential. An offset amount is acquired from the potential and the correlative relationship to cancel the offset.

摘要翻译： 在光盘装置中，期望由于跟踪致动器驱动电路的输出的电偏移而抵消透镜偏移的方式。 跟踪伺服控制电路包括用于将跟踪致动器驱动电路的输出电流设置为一般为零的第一操作模式和用于向输入提供预定电位的第二操作模式。 获取在第一操作模式中检测到的推挽信号的平均电位。 通过改变在第二模式中提供的电位，物镜在两个径向上移动预定量，以获得推挽信号相对于透镜移动量的平均电位与所提供的电位之间的相关关系。 从电位和相关关系中获取偏移量，以消除偏移。

公开(公告)号：US08259548B2

公开(公告)日：2012-09-04

申请号：US12952416

申请日：2010-11-23

申请人： Shuichi Minamiguchi ,  Hiroharu Sakai ,  Hajime Nishimura

发明人： Shuichi Minamiguchi ,  Hiroharu Sakai ,  Hajime Nishimura

IPC分类号： G11B7/00

CPC分类号： G11B19/12

摘要： To identify the type of a loaded disc, there is provided an optical disc device, comprising: a light source driven by a drive signal with a high frequency signal superimposed; a detector for detecting return light emitted from the light source; and a controller for controlling the amplitude of the high frequency signal to be superimposed on the drive signal, the optical disc device being configured to read data from an optical disc loaded therein by a signal outputted from the detector, wherein: the controller causes the light source to irradiate the loaded optical disc with light in a condition in which a high frequency signal different from a high frequency signal for data reading is superimposed on the drive signal; and the controller identifies a type of the loaded optical disc based on the return light from the loaded optical disc.

摘要翻译： 为了识别装载的盘的类型，提供了一种光盘装置，包括：由具有叠加的高频信号的驱动信号驱动的光源; 用于检测从所述光源发射的返回光的检测器; 以及控制器，用于控制要重叠在驱动信号上的高频信号的幅度，该光盘装置被配置为通过从检测器输出的信号从装载在其中的光盘读取数据，其中：控制器使光 源，用于在与用于数据读取的高频信号不同的高频信号叠加在驱动信号上的条件下用光照射装载的光盘; 并且控制器基于来自加载的光盘的返回光来识别加载的光盘的类型。

公开(公告)号：US08189447B2

公开(公告)日：2012-05-29

申请号：US13034456

申请日：2011-02-24

申请人： Hiroharu Sakai ,  Hajime Nishimura ,  Shuichi Minamiguchi

发明人： Hiroharu Sakai ,  Hajime Nishimura ,  Shuichi Minamiguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B2007/0013

摘要： An optical disc drive for reading or writing information on a multilayer optical disc having three or more recording layers by irradiating the disc with a light beam includes an optical pickup for irradiating the disc with the light beam, a recording state detector for detecting data recording states at a start point of a focus jump, a transit point or transit points on a recording layer or recording layers to be passed through, and an expected landing point of a focal point of the light beam in a focus jump, and a controller for moving the optical pickup to a position where the recording states are the same at all of the start point, the transit point(s) on the recording layer(s) to be passed through, and the expected landing point if the recording states are different among those points, before starting the focus jump.

摘要翻译： 一种光盘驱动器，用于通过用光束照射光盘来在具有三个或更多个记录层的多层光盘上读取或写入信息，包括用光照射光盘的光学拾取器，用于检测数据记录状态的记录状态检测器 在焦点跳跃的开始点，记录层上的过渡点或过境点或要通过的记录层，以及聚焦跳跃中的光束的焦点的预期着陆点，以及用于移动的控制器 光拾取器到达记录状态在所有起始点上的记录状态相同的位置，要通过的记录层上的传送点以及如果记录状态不同的预期着陆点 那些点，在开始焦点跳跃之前。

公开(公告)号：US20120008478A1

公开(公告)日：2012-01-12

申请号：US13178557

申请日：2011-07-08

申请人： Shuichi MINAMIGUCHI ,  Hajime Nishimura ,  Hiroharu Sakai ,  Kazuhiko Ono

发明人： Shuichi MINAMIGUCHI ,  Hajime Nishimura ,  Hiroharu Sakai ,  Kazuhiko Ono

IPC分类号： G11B7/125

CPC分类号： G11B7/1263 ,  G11B7/0941

摘要： This invention provides accurate control of laser light power in a recording operation to achieve more stable recording operation. An optical disc drive in an embodiment of this invention monitors the power of laser light with a monitor diode and controls the laser light power based on the result of monitoring. The optical disc drive changes data transfer rate (recording frequency) depending on the disc radial position. The optical disc drive controls the gain of the monitor diode across the recording surface depending on the recording frequency. This control improves the accuracy in laser light power control to achieve stable recording operations by precise servo control.

摘要翻译： 本发明提供对记录操作中的激光功率的精确控制，以实现更稳定的记录操作。 本发明实施例中的光盘驱动器利用监视二极管监测激光的功率，并根据监视结果控制激光功率。 光盘驱动器根据盘的径向位置改变数据传送速率（记录频率）。 光盘驱动器根据记录频率控制监视二极管在记录表面上的增益。 该控制提高了激光功率控制的精度，通过精确的伺服控制实现稳定的记录操作。

公开(公告)号：US20110158074A1

公开(公告)日：2011-06-30

申请号：US12952416

申请日：2010-11-23

申请人： Shuichi MINAMIGUCHI ,  Hiroharu Sakai ,  Hajime Nishimura

发明人： Shuichi MINAMIGUCHI ,  Hiroharu Sakai ,  Hajime Nishimura

IPC分类号： G11B27/36

CPC分类号： G11B19/12

摘要： To identify the type of a loaded disc, there is provided an optical disc device, comprising: a light source driven by a drive signal with a high frequency signal superimposed; a detector for detecting return light emitted from the light source; and a controller for controlling the amplitude of the high frequency signal to be superimposed on the drive signal, the optical disc device being configured to read data from an optical disc loaded therein by a signal outputted from the detector, wherein: the controller causes the light source to irradiate the loaded optical disc with light in a condition in which a high frequency signal different from a high frequency signal for data reading is superimposed on the drive signal; and the controller identifies a type of the loaded optical disc based on the return light from the loaded optical disc.

摘要翻译： 为了识别装载的盘的类型，提供了一种光盘装置，包括：由具有叠加的高频信号的驱动信号驱动的光源; 用于检测从所述光源发射的返回光的检测器; 以及控制器，用于控制要重叠在驱动信号上的高频信号的幅度，该光盘装置被配置为通过从检测器输出的信号从装载在其中的光盘读取数据，其中：控制器使光 源，用于在与用于数据读取的高频信号不同的高频信号叠加在驱动信号上的条件下用光照射装载的光盘; 并且控制器基于来自加载的光盘的返回光来识别加载的光盘的类型。

公开(公告)号：US20080046646A1

公开(公告)日：2008-02-21

申请号：US11687969

申请日：2007-03-19

申请人： Tetsuya Tamura ,  Hajime Nishimura ,  Takeshi Sasa ,  Kazuya Suzuki

发明人： Tetsuya Tamura ,  Hajime Nishimura ,  Takeshi Sasa ,  Kazuya Suzuki

IPC分类号： G06F12/00

CPC分类号： G06F3/0644 ,  G06F3/0608 ,  G06F3/0679

摘要： A data storage apparatus is provided. The data storage apparatus includes: a storage unit managed using a logical block address; a memory; a storage control unit for storing in the storage unit a free area control table transmitted from the host apparatus in which information on a free area in the storage unit is stored; an expanding unit for reading the free area control table in the storage unit and expanding it in the memory; a recording unit for recording data transmitted from the host apparatus into a free area in the storage unit on the basis of the free area control table in the memory; an updating unit for updating the free area control table in the memory after the data recording unit has completed a recording operation; and a transmission unit for transmitting to the host apparatus updated information included in the free area control table which has been updated by the updating unit.

摘要翻译： 提供数据存储装置。 数据存储装置包括：使用逻辑块地址管理的存储单元; 记忆 存储控制单元，用于在存储单元中存储从其中存储有关于存储单元中的空闲区域的信息的主机设备发送的空闲区域控制表; 扩展单元，用于读取存储单元中的空闲区域控制表并将其扩展到存储器中; 记录单元，用于根据存储器中的空闲区域控制表将从主机设备发送的数据记录到存储单元中的空闲区域中; 更新单元，用于在数据记录单元完成记录操作之后更新存储器中的空闲区域控制表; 以及发送单元，用于向所述主机发送包括在由所述更新单元更新的所述空闲区域控制表中的更新信息。

公开(公告)号：US20070050583A1

公开(公告)日：2007-03-01

申请号：US11459107

申请日：2006-07-21

申请人： Hajime Nishimura ,  Takeshi Sasa ,  Tetsuya Tamura ,  Kazuya Suzuki

发明人： Hajime Nishimura ,  Takeshi Sasa ,  Tetsuya Tamura ,  Kazuya Suzuki

IPC分类号： G06F12/14 ,  G06F12/00

CPC分类号： G06F3/0643 ,  G06F3/0626 ,  G06F3/068

摘要： There is provided a composite type recording apparatus restricting write operations depending on the type of a connected host apparatus, including a recording medium having a first data region, a non-volatile storage medium having a second data region and an identification information table for integrating and managing the first and second data region, an information selection section for selecting positional information having predetermined identification information from the identification information table according to the type of the host apparatus, a conversion section for converting positional information selected by the information selection section into positional information matching the first data region or positional information matching the second data region, a first write section for writing data supplied from the host apparatus in the first data region according to conversion process of the conversion section and a second write section for writing data supplied from the host apparatus in the second data region.

摘要翻译： 提供一种复合型记录装置，其根据所连接的主机装置的类型限制写入操作，包括具有第一数据区域的记录介质，具有第二数据区域的非易失性存储介质和用于集成的识别信息表， 管理第一和第二数据区域的信息选择部分，用于根据主机设备的类型从识别信息表中选择具有预定标识信息的位置信息的信息选择部分，用于将由信息选择部分选择的位置信息转换成位置信息的转换部分 匹配第一数据区域或与第二数据区域匹配的位置信息，第一写入部分，用于根据转换部分的转换处理将从主机设备提供的数据写入第一数据区域;以及第二写部分，用于写入从 主机设备在第二数据区域中。

公开(公告)号：US20070019315A1

公开(公告)日：2007-01-25

申请号：US11458204

申请日：2006-07-18

申请人： Tetsuya Tamura ,  Hajime Nishimura ,  Takeshi Sasa ,  Kazuya Suzuki

发明人： Tetsuya Tamura ,  Hajime Nishimura ,  Takeshi Sasa ,  Kazuya Suzuki

IPC分类号： G11B5/00 ,  G11B19/02

CPC分类号： G11B19/04 ,  G06F3/0611 ,  G06F3/0643 ,  G06F3/0656 ,  G06F3/068 ,  G06F12/0866 ,  G11B20/10527 ,  G11B27/329 ,  G11B2020/1062 ,  G11B2020/10759 ,  G11B2020/10916 ,  G11B2220/20 ,  G11B2220/45 ,  G11B2220/61

摘要： A data-storage apparatus, a data-storage method and a recording/reproducing system are provided, which effectively use the time elapsing before data is transferred to be written in a recording medium, such as disc-seeking time and disc-rotation standby time, thereby to raise the speed of transferring data. A hybrid storage apparatus has two storage areas, i.e., a disc and a nonvolatile solid-state memory. The disc and the memory have a disc cache area, a system area, and a user area each. If data is transferred from the host apparatus, it is written into the cache area of the nonvolatile solid-state memory that can be accessed at high speed for the first super cluster. While the data being so written, the head is moved to a prescribed position. Any data coming after the head is moved to this position is written into the cache area.

摘要翻译： 提供数据存储装置，数据存储方法和记录/再现系统，其有效地使用数据传送之前的时间来写入记录介质，诸如盘寻求时间和盘旋转待机时间 ，从而提高传输数据的速度。 混合存储装置具有两个存储区域，即盘和非易失性固态存储器。 盘和存储器具有盘缓存区域，系统区域和用户区域。 如果从主机装置传送数据，则将其写入可以高速访问第一超级集群的非易失性固态存储器的高速缓存区域。 当数据被写入时，头部移动到规定的位置。 将头部移动到该位置之后的任何数据被写入高速缓存区域。

公开(公告)号：US07065671B2

公开(公告)日：2006-06-20

申请号：US10169600

申请日：2001-11-02

申请人： Hajime Nishimura

发明人： Hajime Nishimura

IPC分类号： G06F11/20 ,  G06F12/02

CPC分类号： G11B20/1883 ,  G11B2020/183 ,  G11B2220/20

摘要： As for a region in relation to a secondary defect, a recording means such as a memory or the like is separately used to carry out a recording and reproducing process. Thus, even when an exchange allocating process is carried out so as to ensure an access with a high reliability, data may be processed continuously.