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1. 发明专利

JP2008171458A Information recording and reproducing apparatus and information recording medium 审中-公开
标题翻译：信息记录和再现设备和信息记录介质
公开(公告)号：JP2008171458A
公开(公告)日：2008-07-24
申请号：JP2007000711
申请日：2007-01-05
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： SAGA HIDEKI , HIRAI TATSUYA
IPC分类号： G11B20/10 , G11B5/64 , G11B5/65 , G11B5/738
CPC分类号： G06F21/80 , G06F21/31 , G06F21/6218 , G06F2221/2133
摘要： PROBLEM TO BE SOLVED: To provide an information recording and reproducing apparatus having high security to illegal access without preparing a timer means and its power source therein and without using an external time information providing means and a safe communication path to the time information providing means.
SOLUTION: A magnetic disk 10 wherein data loss time of an encryption key data recording region 32 is shorter than that of a user data recording region 30 is used, user data are recorded in the magnetic disk 10 while the user data are encrypted and encryption key data used for encryption are recorded in the encryption key data recording region 32 upon recording, and when user data are reproduced by a user having proper access authority, encryption key data are read out from the encryption key data recording region 32, user data encrypted upon recording are outputted while being decoded using the encryption key data formed by encryption key data and encryption key data are overwritten on the encryption key data recording region 32.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种对非法访问具有高安全性的信息记录和再现装置，而不需要在其中准备定时器装置及其电源，并且不使用外部时间信息提供装置和与时间信息的安全通信路径提供手段。解决方案：使用其中加密密钥数据记录区域32的数据丢失时间短于用户数据记录区域30的磁盘10，用户数据被记录在磁盘10中，同时用户数据被加密和用于加密的加密密钥数据在记录时被记录在加密密钥数据记录区域32中，并且当用户数据由具有适当访问权限的用户再现时，加密密钥数据从加密密钥数据记录区域32被读出，用户在使用由加密密钥数据形成的加密密钥数据进行解密的同时输出在记录时加密的数据，加密密钥数据记录区域32被覆盖加密密钥数据。（C）2008，JPO＆INPIT

2. 发明专利

JP2006302343A Information recording and reproducing device 审中-公开
标题翻译：信息记录和复制设备
公开(公告)号：JP2006302343A
公开(公告)日：2006-11-02
申请号：JP2005118604
申请日：2005-04-15
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： SAGA HIDEKI , TAKASHI TERUMI , TSUNODA MOTOYASU
IPC分类号： G11B20/10
CPC分类号： G06F3/0659 , G06F3/0625 , G06F3/0626 , G06F3/0658 , G06F3/0676 , G11B20/10 , Y02D10/154
摘要： PROBLEM TO BE SOLVED: To provide a user-friendly information recording and reproducing device at low cost, which operates with less power consumption, is excellent in an EMI (electromagnetic interference) prevention effect, is light in weight and small in physical size and is suitable for especially portable equipment.
SOLUTION: The information recording and reproducing device has a processor A for controlling a scanning means for a recording medium, a record signal processing means and a reproduced signal processing means, and a processor B for instructing the processor A to record information on the recording medium and reproduce the information from the recording medium, and is provided with a memory means which can be accessed at random by the processors A and B and stores the information to be recorded and the reproduction information.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了以更低的功耗提供低成本的用户友好的信息记录和再现装置，具有优异的EMI（电磁干扰）防止效果，重量轻且物理上小尺寸适合特别是便携式设备。解决方案：信息记录和再现装置具有用于控制用于记录介质的扫描装置的处理器A，记录信号处理装置和再现信号处理装置，以及处理器B，用于指示处理器A记录关于该记录介质再现来自记录介质的信息，并且具有存储装置，该存储装置可由处理器A和B随机访问，并存储要记录的信息和再现信息。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005346870A Information recording and reproducing apparatus with power source voltage monitoring function 审中-公开
标题翻译：具有电源电压监测功能的信息记录和再现设备
公开(公告)号：JP2005346870A
公开(公告)日：2005-12-15
申请号：JP2004167406
申请日：2004-06-04
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： SAGA HIDEKI
IPC分类号： G06F1/26 , G06F1/32 , G11B5/55 , G11B19/00 , G11B19/02 , G11B21/02 , G11B21/10 , G11B31/00
CPC分类号： G11B19/02 , G06F1/32 , G11B5/5526
摘要： PROBLEM TO BE SOLVED: To suppress reduction of performance of a disk apparatus and as its application system to a minimum range by reducing peak current consumption of the disk apparatus and its application system and keeping restriction of current consumption to the absolute minimum. SOLUTION: This apparatus is provided with a monitor terminal 106 to which output voltage of a power source 100 before voltage is made constant by a constant voltage power source 109 is inputted, when it is lowered to previously decided reference voltage, control is performed so that current consumption of each part of the disk apparatus is suppressed. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过减少磁盘装置及其应用系统的峰值电流消耗并将电流消耗的限制保持在绝对最小值，来抑制磁盘装置的性能和应用系统的性能降低到最小范围。解决方案：该设备设置有监视器端子106，当电压被恒定电压源109保持恒定之前，电源100的输出电压被降低到预先决定的参考电压时，控制是进行使得磁盘装置的每个部分的电流消耗被抑制。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2007184021A Address assigning method, disk device, and data writing method 审中-公开
标题翻译：地址分配方法，磁盘设备和数据写入方法
公开(公告)号：JP2007184021A
公开(公告)日：2007-07-19
申请号：JP2006000193
申请日：2006-01-04
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： KAMIMURA TETSUYA , SAGA HIDEKI
IPC分类号： G11B20/12 , G11B20/10
CPC分类号： G11B20/1217 , G11B2020/1238 , G11B2020/1247 , G11B2020/1248 , G11B2020/1267 , G11B2020/1292 , G11B2020/1294 , G11B2220/2516
摘要： PROBLEM TO BE SOLVED: To normally write data in a disk device having an address system, where track groups different in track width discretely exist in a storage medium in the same disk device and the size relation of a physical block address in a sector is also established in the size relation of a logical block address.
SOLUTION: The track groups corresponding to each track width are independently managed in the disk device. The respective track groups discretely existing in a physical block address space are continuously arranged in a logical block address space. When the two track groups being shingled tracks (ST) and titled tracks (TT) which are different in track width exist, steps 1111-1116 or steps 1117-1118 are performed according to whether the sector to be accessed exists in the ST area or the TT area in a step 1110. Then conversion is performed from the logical block address into the physical block address.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了正常地将数据写入具有地址系统的磁盘设备中，其中轨道宽度不同的磁道组离散地存在于同一磁盘设备中的存储介质中，以及物理块地址的大小关系扇区也以逻辑块地址的大小关系建立。
解决方案：对应于每个磁道宽度的磁道组在磁盘设备中独立管理。离散地存在于物理块地址空间中的相应轨道组连续地布置在逻辑块地址空间中。当轨道宽度不同的两个轨道组（ST）和标题轨迹（TT）存在时，根据在ST区域中是否存在要访问的扇区，执行步骤1111-1116或步骤1117-1118，或者在步骤1110中的TT区域。然后，从逻辑块地址到物理块地址执行转换。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005332474A Heat assist type magnetic recording apparatus 审中-公开
标题翻译：热辅助类型磁记录装置
公开(公告)号：JP2005332474A
公开(公告)日：2005-12-02
申请号：JP2004149477
申请日：2004-05-19
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： AKAGI FUMIKO , IGARASHI KAZUSUKATSU , SAGA HIDEKI
IPC分类号： G11B5/64 , G11B5/00 , G11B5/02 , G11B5/65 , G11B5/66 , G11B5/706 , H01F10/13 , H01F10/16
CPC分类号： G11B5/66 , G11B5/02 , G11B5/656 , G11B11/10536 , G11B11/10584 , G11B11/10586 , G11B2005/001 , G11B2005/0021 , H01F10/137 , H01F10/16
摘要： PROBLEM TO BE SOLVED: To provide a heat assist type magnetic recording apparatus in which heat resistance is excellent and low noise can be realized.
SOLUTION: Such a magnetic recording medium is used that exchange coupling mutual operation between magnetic particles is large so that magnetic particles constituting a recording layer are coupled and stabilized thermally in the normal temperature (temperature in which magnetization is preserved) and is reduced by heating so that tilt of recording magnetization transition becomes steep at the time of recording. A value A in which tilt in the vicinity of coercive force of a MH loop of a medium is standardized is 1.5≤A
摘要翻译：要解决的问题：提供一种耐热性优异并且可以实现低噪声的热辅助型磁记录装置。解决方案：使用这种在磁性颗粒之间交换耦合相互作用的磁记录介质，使得构成记录层的磁性颗粒在常温（保持磁化的温度）下热耦合并稳定，并且减小通过加热使得记录磁化转变的倾斜在记录时变得陡峭。在介质的MH环路的矫顽力附近的倾斜被标准化的值A在常温下为1.5≤A<6.0，加热时的值A为1。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2009294982A Disk device and its control method 有权
标题翻译：磁盘设备及其控制方法
公开(公告)号：JP2009294982A
公开(公告)日：2009-12-17
申请号：JP2008149037
申请日：2008-06-06
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： HIRATSUKA YUKIE , SAGA HIDEKI
IPC分类号： G06F12/16 , G06F3/06 , G11C16/02
CPC分类号： G06F12/0246 , G06F3/0616 , G06F3/0631 , G06F3/0656 , G06F3/0676 , G06F11/1666 , G06F12/0866 , G06F2212/1036 , G11B27/36 , G11C29/76
摘要： PROBLEM TO BE SOLVED: To efficiently use a nonvolatile memory even after using the exchange region of a nonvolatile memory in a disk device including a nonvolatile memory whose rewritting frequency is restricted. SOLUTION: This disk device includes a control part including a nonvolatile memory whose rewriting frequency is restricted, a disk and a memory management table for managing the correspondence relation between the logical address (LBA: Logical Block Address) of the nonvolatile memory with a physical address. The control part writes the data in the physical address corresponding to the LBA of the nonvolatile memory different from an LBA in which the data should be written in response to the generation of a failure in the region of the physical address corresponding to the LBA in which the data should be written in the nonvolatile memory, and the physical address in which the data are written is associated with the LBA in which the data should be written in the memory management table. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在包括重写频率受限的非易失性存储器的盘装置中使用非易失性存储器的交换区域之后，也可有效地使用非易失性存储器。解决方案：该磁盘装置包括一个控制部分，包括一个重写频率受到限制的非易失性存储器，一个磁盘和一个存储器管理表，用于管理非易失性存储器的逻辑地址（LBA：逻辑块地址）与逻辑地址之间的对应关系，一个物理地址。控制部分响应于在对应于其中的LBA的物理地址的区域中产生故障，将数据写入与非易失性存储器的LBA不同的物理地址的数据应该写入数据的物理地址，数据应写入非易失性存储器中，写入数据的物理地址与数据应写入存储器管理表的LBA相关联。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2007184015A Method for assigning track for disk device 有权
标题翻译：用于分配盘装置的轨迹的方法
公开(公告)号：JP2007184015A
公开(公告)日：2007-07-19
申请号：JP2006000066
申请日：2006-01-04
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： KAMIMURA TETSUYA , SAGA HIDEKI
IPC分类号： G11B20/12 , G11B20/10
CPC分类号： G11B5/09 , G11B20/1258 , G11B20/1883 , G11B2020/1238 , G11B2020/1242 , G11B2020/1289 , G11B2020/1292 , G11B2220/20 , G11B2220/2516
摘要： PROBLEM TO BE SOLVED: To suppress the reduction of a capacity in the case that there is a defective track concerning a method for narrowing a track width by partially overwriting an adjacent track and performing collective updating concerning a data updating unit composed of a plurality of the tracks for enhancing the capacity of a disk device.
SOLUTION: Track groups having two kinds of track widths, i.e., shingled tracks (ST) and tiled tracks (TT) are assigned to a zone. At first, the zone is divided into two areas, i.e., an ST area and a spare track or a TT area. When the defective track is detected in the ST area in a step 410, it is checked whether there is a room in the spare track or the TT area in a step 420. When the room exists, an area is shifted from the spare track or the TT area to the ST area in a step 421. When the termination of the assignment of the ST is confirmed in a step 440, the TT is assigned to the spare track or the TT area which is remained in steps after the step 442.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了抑制在通过部分地覆盖相邻轨道而使轨道宽度变窄的方法存在缺陷轨迹的情况下减小容量，并且执行关于由多个轨道，用于增强盘装置的容量。
解决方案：具有两种轨道宽度的轨道组，即带状轨迹（ST）和平铺轨道（TT）被分配给一个区域。首先，将区域分为两个区域，即ST区域，备用轨道或TT区域。当在步骤410中在ST区域中检测到缺陷轨迹时，在步骤420中检查是否存在备用轨道或TT区域中的房间。当房间存在时，区域从备用轨道或在步骤421中向ST区域的TT区域。当在步骤440中确认ST的分配的终止时，将TT分配给在步骤442之后保持步骤的备用轨道或TT区域。版权所有（C）2007，JPO＆INPIT

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