专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5270885A Hard-disk storage apparatus with memory storing data-head control information 失效
标题翻译：具有存储数据头控制信息的存储器的硬盘存储装置
公开(公告)号：US5270885A
公开(公告)日：1993-12-14
申请号：US642579
申请日：1991-01-17
申请人： Hiroshi Satoh , Tetsuyuki Hishikawa , Toshio Takeuchi , Yoshiji Kitamura
发明人： Hiroshi Satoh , Tetsuyuki Hishikawa , Toshio Takeuchi , Yoshiji Kitamura
IPC分类号： G06F3/06 , G11B5/596 , G11B21/10 , G11B27/10
CPC分类号： G11B5/59627
摘要： A hard-disk storage apparatus is provided with a plurality of stacked magnetic recording disks each of which is provided with a plurality of tracks. Each of the tracks is specified by a cylinder address and a physical data-head address. Logical data-head addresses applied to the hard-disk are converted into the corresponding physical data-head address according to a conversion table pre-recorded within a non-volatile memory. Further, offset parameters of each data-head over two selected cylinders at predetermined temperatures are previously stored within the non-volatile memory. A microprocessor unit calculates offset parameters of all the data-heads over each of the tracks at a given temperature preferably measured within the hard-disk storage assembly. These offset parameters are utilized to correct the displacement of each data-head over a given track due to temperatures.
摘要翻译：硬盘存储装置设置有多个堆叠的磁记录盘，每个磁记录盘设有多个磁道。每个轨道由气缸地址和物理数据头地址指定。根据在非易失性存储器中预先记录的转换表，将应用于硬盘的逻辑数据头地址转换为相应的物理数据头地址。此外，在预定温度下的两个选择的气缸上的每个数据头的偏移参数预先存储在非易失性存储器内。微处理器单元在优选地在硬盘存储组件内测量的给定温度下计算每个轨道上的所有数据头的偏移参数。这些偏移参数用于校正由于温度而导致的每个数据头在给定轨道上的位移。

2. 发明授权

US5157566A Magnetic disk drive having a lock mechanism for preventing rotation of a disk spindle after the disk spindle is stopped 失效
标题翻译：磁盘驱动器具有用于在盘主轴停止之后防止盘主轴旋转的锁定机构
公开(公告)号：US5157566A
公开(公告)日：1992-10-20
申请号：US560638
申请日：1990-07-31
申请人： Tetsuyuki Hishikawa , Yoshiji Kitamura
发明人： Tetsuyuki Hishikawa , Yoshiji Kitamura
IPC分类号： G11B19/20 , G11B19/22
CPC分类号： G11B19/20 , G11B19/22
摘要： A magnetic disk drive includes a spindle for rotating a plurality of magnetic disks and a lock mechanism for preventing the spindle from rotating when the magnetic disk drive is not operated. A toothed disk is provided on an axial end of the spindle, and a movable lock arm engageable to teeth of the toothed disk is provided. The lock arm is driven to lock the rotation of the spindle by a solenoid which is energized after a predetermined period of time has elapsed after the electric power of the disk drive is turned off, so that the lock mechanism locks the spindle after the rotation of the spindle and magnetic disks completely stop.
摘要翻译：磁盘驱动器包括用于旋转多个磁盘的主轴和用于当磁盘驱动器未被操作时防止主轴旋转的锁定机构。齿盘设置在主轴的轴向端部，并且设有与齿形盘的齿啮合的可动锁定臂。锁定臂被驱动以通过螺线管锁定主轴的旋转，螺线管在磁盘驱动器的电力被关闭之后已经经过预定时间段之后被激励，使得锁定机构在转动之后锁定主轴主轴和磁盘完全停止。

3. 发明授权

US5461633A Disk drive circuit with partial match detection for predetermined bit sequence 失效
标题翻译：具有预定位序列的部分匹配检测的磁盘驱动电路
公开(公告)号：US5461633A
公开(公告)日：1995-10-24
申请号：US909177
申请日：1992-07-06
申请人： Yoshiji Kitamura
发明人： Yoshiji Kitamura
IPC分类号： G11B20/10 , G11B19/02 , G11B20/12 , G11B20/14 , G11B27/30 , G06F11/00
CPC分类号： G11B19/02 , G11B20/14 , G11B27/3027
摘要： In a disk drive where data bits containing a bit sequence signifying a specified location of a data block are read from a disk. A reference bit sequence identical to the recovered bit sequence is generated. Each of the recovered bit sequence and the reference bit sequence is divided into M groups of K bits. The M groups of the recovered bit sequence and the corresponding M groups of the reference bit sequence are compared with each other and a coincidence signal is produced for each of M pairs of compared groups when there is a bit-by-bit match therebetween. A match detector determines if the coincidence signal is generated from all pairs of the compared groups or from N out of M pairs of the compared groups.
摘要翻译：在磁盘驱动器中，从磁盘读取包含表示数据块的指定位置的位序列的数据位。产生与恢复的比特序列相同的参考比特序列。恢复的比特序列和参考比特序列中的每一个被分成M个K比特组。将恢复的比特序列的M组和参考比特序列的对应的M组彼此进行比较，并且当在其间存在逐位匹配时，对于M对比较组中的每一对产生一致信号。匹配检测器确定是否从所有比较的组对或从M个比较组中的N个生成一致信号。

4. 发明授权

US5650885A Device having synchronized spindle control in disk drives with at least two data per rotation of a disk 失效
标题翻译：设备在磁盘驱动器中同步主轴控制，每个磁盘旋转至少有两个数据
公开(公告)号：US5650885A
公开(公告)日：1997-07-22
申请号：US470460
申请日：1995-06-06
申请人： Yoshiji Kitamura , Hirofumi Takiue
发明人： Yoshiji Kitamura , Hirofumi Takiue
IPC分类号： G11B19/28 , G11B27/10 , G11B27/13 , G11B27/19
CPC分类号： G11B19/28 , G11B27/10 , G11B27/13 , G11B2220/20
摘要： In order to bring and keep a slave phase of rotation of a slave spindle into and in synchronism with a master phase, the master phase is represented in a predetermined time duration by zeroth through (N-1)-th master region data with an N-th master region datum added, where N represents a predetermined integer which is not less than two. The slave phase is represented, during one rotation of the slave spindle, by zeroth through (N-1)-th slave region data with an N-th slave region datum additionally used to provide a guard time. The zeroth through the (N-1)-th slave and master region data are compared to render a phase difference between the master and the slave phases either to zero or to a predetermined value. Alternatively, the master phase is represented in the predetermined time duration by a sequence of composite pulses which comprise N master clock pulses with at least one of the clock pulses omitted to indicate a start point of the sequence. The slave phase is represented, during one rotation of the slave spindle, by a combination of N slave clock pulses and a slave index signal. As a further alternative, the master phase is represented by a combination of the N master clock pulses without omission and a master index signal produced once in the predetermined time duration.
摘要翻译：为了将从主轴的从动相位保持并保持与主相位同步，主相位在预定的持续时间内通过第（N-1）个主区域数据以N 添加了主区域基准，其中N表示不小于2的预定整数。在从主轴的一次旋转期间，通过第（N-1）个从属区域数据表示从属相位，其中还包括用于提供保护时间的第N个从属区域数据。比较通过第（N-1）个从站和主区域数据的零，使主站和从站之间的相位差为零或达到预定值。或者，通过包括N个主时钟脉冲的复合脉冲序列在预定持续时间中表示主相位，其中省略了至少一个时钟脉冲以指示序列的起始点。在从主轴的一次旋转期间，通过N个从时钟脉冲和从属索引信号的组合来表示从相。作为另一替代方案，主相位由N个主时钟脉冲的组合而不被省略来表示，而主索引信号在预定持续时间内产生一次。

5. 发明授权

US5555140A Synchronized spindle control in disk drives with at least two data per rotation of disk 失效
标题翻译：在磁盘驱动器中同步主轴控制，每转磁盘至少有两个数据
公开(公告)号：US5555140A
公开(公告)日：1996-09-10
申请号：US359847
申请日：1994-12-20
申请人： Yoshiji Kitamura , Hirofumi Takiue
发明人： Yoshiji Kitamura , Hirofumi Takiue
IPC分类号： G11B19/28 , G11B27/10 , G11B27/13 , G11B27/22
CPC分类号： G11B19/28 , G11B27/10 , G11B27/13 , G11B2220/20
摘要： In order to bring and keep a slave phase of rotation of a slave spindle into and in synchronism with a master phase, the master phase is represented in a predetermined time duration by zeroth through (N-1)-th master region data with an N-th master region datum added, where N represents a predetermined integer which is not less than two. The slave phase is represented, during one rotation of the slave spindle, by zeroth through (N-1)-th slave region data with an N-th slave region datum additionally used to provide a guard time. The zeroth through the (N-1)-th slave and master region data are compared to render a phase difference between the master and the slave phases either to zero or to a predetermined value. Alternatively, the master phase is represented in the predetermined time duration by a sequence of composite pulses which comprise N master clock pulses with at least one of the clock pulses omitted to indicate a start point of the sequence. The slave phase is represented, during one rotation of the slave spindle, by a combination of N slave clock pulses and a slave index signal. As a further alternative, the master phase is represented by a combination of the N master clock pulses without omission and a master index signal produced once in the predetermined time duration.
摘要翻译：为了将从主轴的从动相位保持并保持与主相位同步，主相位在预定的持续时间内通过第（N-1）个主区域数据以N 添加了主区域基准，其中N表示不小于2的预定整数。在从主轴的一次旋转期间，通过第（N-1）个从属区域数据表示从属相位，其中还包括用于提供保护时间的第N个从属区域数据。比较通过第（N-1）个从站和主区域数据的零，使主站和从站之间的相位差为零或达到预定值。或者，通过包括N个主时钟脉冲的复合脉冲序列在预定持续时间中表示主相位，其中省略了至少一个时钟脉冲以指示序列的起始点。在从主轴的一次旋转期间，通过N个从时钟脉冲和从属索引信号的组合来表示从相。作为另一替代方案，主相位由N个主时钟脉冲的组合而不被省略来表示，而主索引信号在预定持续时间内产生一次。

6. 发明授权

US5153784A Magnetic disk apparatus having a read/write control circuit 失效
标题翻译：具有读/写控制电路的磁盘装置
公开(公告)号：US5153784A
公开(公告)日：1992-10-06
申请号：US529415
申请日：1990-05-29
申请人： Yoshiji Kitamura
发明人： Yoshiji Kitamura
IPC分类号： G11B20/10 , G11B20/12 , G11B20/18
CPC分类号： G11B20/1883 , G11B20/10 , G11B20/1252 , G11B2020/1282 , G11B2220/20 , G11B2220/2508
摘要： A magnetic disk apparatus for reading and writing user's data from a magnetic disk having a data surface with a plurality of concentric data tracks the data surface having a void area in which user's data is inhibited. The magnetic disk apparatus includes a magnetic head for reading and writing the user's data from and to the data tracks, detecting apparatus for detecting a circumferential position of the magnetic head at a target track, a store for storing the position and length of the void area, a timing clock generator for generating a read/write synchronization signal and control circuitry for preventing transmission of the read/write synchronization signal during a time period corresponding to the length of the void area when the circumferential position of the magnetic head corresponds to the position of the void area, thereby inhibiting read-out or write-in to or from an interface circuit while transmission of read/write synchronization signal is prevented.
摘要翻译：一种用于从具有多个同心数据的数据表面的磁盘读取和写入用户数据的磁盘装置跟踪具有禁止用户数据的空白区域的数据表面。磁盘装置包括用于从数据轨道读取和写入用户数据的磁头，用于检测目标轨道上的磁头的周向位置的检测装置，用于存储空隙区域的位置和长度的存储器用于产生读/写同步信号的定时时钟发生器和用于在磁头的圆周位置对应于位置的空间区域的长度的一段时间内防止读/写同步信号传输的控制电路从而在读/写同步信号的发送被阻止的同时禁止对接口电路的读出或写入。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式