Table driven method and apparatus for automatic split field processing
    31.
    发明授权
    Table driven method and apparatus for automatic split field processing 失效
    用于自动分割现场处理的表驱动方法和装置

    公开(公告)号:US5768043A

    公开(公告)日:1998-06-16

    申请号:US548397

    申请日:1995-10-26

    摘要: A table driven method and apparatus for automatic split field processing in a disk drive system stores data representing the split fields after each servo mark of a frame. Each track of the disk drive system is divided up into frames or groups of sectors or equivalently servo marks, each frame comprising a predetermined number N of sectors and a predetermined number M of servo marks. Beginning from the INDEX mark, after every N sectors or equivalently M servo marks, the next sector must start after the next servo mark. The value N is a constant within each zone on a disk but can vary from zone to zone as the storage density changes. The information for each servo mark within a frame is stored in a frame table in the buffer memory. A starting address pointer and an ending address pointer are used to keep track of the starting and ending addresses, respectively, of the frame table. An address pointer is used to point to the current entry of interest in the frame table. For each servo mark within the frame, a sector pulse counter is stored, representing the number of sector pulses between the current servo mark and the next servo mark. A first time delay DY1, representing the delay from the current servo mark to the first sector pulse to be generated and a second delay value DYS, representing the size of the last split field before the next servo mark are also stored.

    摘要翻译: 用于盘驱动系统中的自动分割场处理的表驱动方法和装置在帧的每个伺服标记之后存储表示分割场的数据。 磁盘驱动器系统的每个磁道被划分成帧或组的组或等效的伺服标记,每个帧包括预定数量的N个扇区和预定数量的M个伺服标记。 从INDEX标记开始,在每N个扇区或等效的M个伺服标记之后,下一个扇区必须在下一个伺服标记之后开始。 值N是磁盘上每个区域内的常数,但随着存储密度的变化,它可以随区域而变化。 帧中每个伺服标记的信息被存储在缓冲存储器中的帧表中。 起始地址指针和结束地址指针分别用于跟踪帧表的开始和结束地址。 地址指针用于指向帧表中感兴趣的当前条目。 对于帧内的每个伺服标记,存储扇区脉冲计数器,表示当前伺服标记与下一个伺服标记之间的扇区脉冲数。 表示从当前伺服标记到要产生的第一扇区脉冲的延迟的第一延迟DY1和表示下一个伺服标记之前的最后一个分割场的大小的第二延迟值DYS也被存储。

    Flash memory mass storage architecture incorporating wear leveling
technique without using cam cells
    32.
    发明授权
    Flash memory mass storage architecture incorporating wear leveling technique without using cam cells 失效
    闪存大容量存储体系结合了不使用凸轮单元的磨损均衡技术

    公开(公告)号:US5485595A

    公开(公告)日:1996-01-16

    申请号:US131495

    申请日:1993-10-04

    摘要: A semiconductor mass storage device can be substituted for a rotating hard disk. The device avoid an erase cycle each time information stored in the mass storage is changed. Erase cycles are avoided by programming an altered data file into an empty mass storage block rather than over itself as a hard disk would. Periodically, the mass storage will need to be cleaned up. Secondly, a circuit and method are provided for evenly using all blocks in the mass storage. These advantages are achieved through the use of several flags, a map to correlate a logical address of a block to a physical address of that block and a count register for each block. In particular, flags are provided for defective blocks, used blocks, old versions of a block, a count to determine the number of times a block has been erased and written and an erase inhibit flag. Reading is performed by providing the logical block address to the memory storage. The system sequentially compares the stored logical block addresses until it finds a match. That data file is then coupled to the system.

    摘要翻译: 半导体大容量存储装置可以代替旋转硬盘。 每当存储在大容量存储器中的信息改变时,该设备避免擦除循环。 通过将更改的数据文件编程为空的大容量存储块而不是以硬盘为单位,可以避免擦除周期。 定期地,大容量存储将需要清理。 其次,提供了用于均匀地使用大容量存储器中的所有块的电路和方法。 这些优点通过使用几个标志来实现,地图将块的逻辑地址与该块的物理地址和每个块的计数寄存器相关联。 特别地,为缺陷块,使用块,块的旧版本提供标志,确定块被擦除和写入的次数的计数和擦除禁止标志。 通过向存储器存储器提供逻辑块地址来执行读取。 系统顺序地比较存储的逻辑块地址,直到找到匹配。 然后将该数据文件耦合到系统。

    Secure spin torque transfer magnetic random access memory (STTMRAM)
    33.
    发明授权
    Secure spin torque transfer magnetic random access memory (STTMRAM) 有权
    安全自旋扭矩传递磁随机存取存储器(STTMRAM)

    公开(公告)号:US08954759B2

    公开(公告)日:2015-02-10

    申请号:US13619114

    申请日:2012-09-14

    IPC分类号: G06F21/00

    摘要: A magnetic memory device includes a main memory made of magnetic memory, the main memory and further includes a parameter area used to store parameters used to authenticate data. Further, the magnetic memory device has parameter memory that maintains a protected zone used to store protected zone parameters, and an authentication zone used to store authentication parameters, the protection zone parameters and the authentication parameters being associated with the data that requires authentication. Upon modification of any of the parameters stored in the parameter memory by a user, a corresponding location of the parameter area of the main memory is also modified.

    摘要翻译: 磁存储装置包括由磁存储器构成的主存储器,主存储器还包括用于存储用于认证数据的参数的参数区域。 此外,磁存储器装置具有参数存储器,其维护用于存储保护区参数的保护区,以及用于存储认证参数的认证区,保护区参数和认证参数与需要认证的数据相关联。 在修改由用户存储在参数存储器中的任何参数时,主存储器的参数区域的对应位置也被修改。

    Emulation of static random access memory (SRAM) by magnetic random access memory (MRAM)
    34.
    发明授权
    Emulation of static random access memory (SRAM) by magnetic random access memory (MRAM) 有权
    磁性随机存取存储器(MRAM)对静态随机存取存储器(SRAM)的仿真

    公开(公告)号:US08755221B2

    公开(公告)日:2014-06-17

    申请号:US13187402

    申请日:2011-07-20

    IPC分类号: G11C11/14

    摘要: A magnetic memory system includes a magnetic random access memory (MRAM) including a plurality of magnetic memory banks and operative to store data during a write operation initiated by a write command. The magnetic memory system further includes a first-in-first-out (FIFO) interface device coupled to the MRAM and including a plurality of FIFOs Each of the magnetic memory banks is coupled to a respective one of the plurality of FIFOs, the FIFO being operative to queue write commands on a per magnetic memory bank basis and further operative to issue the queued write commands at a time when the MRAM is not in use, wherein concurrent write operations are performed to at least two of the plurality of magnetic memory banks.

    摘要翻译: 磁存储器系统包括包括多个磁存储器组的磁随机存取存储器(MRAM),并且可操作以在由写命令发起的写操作期间存储数据。 磁存储器系统还包括耦合到MRAM并且包括多个FIFO的先进先出(FIFO)接口设备。每个磁存储器组耦合到多个FIFO中的相应一个,FIFO是 可操作地在每个磁存储体的基础上排队写入命令,并进一步操作以在不使用MRAM时发出排队的写入命令,其中并行写入操作被执行到多个磁存储器组中的至少两个。

    Differential magnetic random access memory (MRAM)
    35.
    发明授权
    Differential magnetic random access memory (MRAM) 有权
    差分磁随机存取存储器(MRAM)

    公开(公告)号:US08385108B1

    公开(公告)日:2013-02-26

    申请号:US13429293

    申请日:2012-03-23

    IPC分类号: G11C11/00

    摘要: A method of method of writing to a magnetic memory cell includes selecting a magnetic memory cell of a magnetic memory array to be written to, the magnetic memory cell including a pair of MTJs, and setting a bit line (BL) coupled to the magnetic memory cell to a state that causes current to flow through the pair of MTJs in a manner that causes the direction of current flow through one of the MTJs of the pair of MTJs to be in a direction opposite to that of the other MTJ of the pair of MTJs.

    摘要翻译: 写入磁存储单元的方法的方法包括选择要写入的磁存储器阵列的磁存储单元,磁存储单元包括一对MTJ,以及设置耦合到磁存储器的位线(BL) 电池导致电流流过该对MTJ的状态,使得电流流过该对MTJ的MTJ之一的电流的方向处于与该对MTJ的另一个MTJ的方向相反的方向 MTJs。

    Error scanning in flash memory
    36.
    发明授权
    Error scanning in flash memory 有权
    在闪存中扫描错误

    公开(公告)号:US08356216B2

    公开(公告)日:2013-01-15

    申请号:US13346538

    申请日:2012-01-09

    IPC分类号: G11C29/00

    CPC分类号: G06F11/006 G06F11/106

    摘要: Various embodiments include methods, apparatus, and systems to scan at least a portion of a memory device for potential errors when a condition for scanning is met. The condition may be dependent on one or more of a number of read operations, a number of write operations, time, and others. Other embodiments including additional methods, apparatus, and systems are disclosed.

    摘要翻译: 各种实施例包括当满足扫描条件时扫描存储器件的至少一部分以用于潜在错误的方法,装置和系统。 条件可以取决于多个读取操作,多个写入操作,时间等中的一个或多个。 公开了包括附加方法,装置和系统的其它实施例。

    High performance architecture for fiber channel targets and target bridges
    40.
    发明授权
    High performance architecture for fiber channel targets and target bridges 失效
    光纤通道目标和目标桥梁的高性能架构

    公开(公告)号:US07986630B1

    公开(公告)日:2011-07-26

    申请号:US11165713

    申请日:2005-06-24

    IPC分类号: G01R31/08

    CPC分类号: G06F13/4247 G06F2213/0032

    摘要: An embodiment of the present invention is disclosed to include a fiber channel target device for receiving information in the form of frames and including a controller device coupled to a microprocessor for processing the frames received from the host, at least one receive buffer for storing the frames and having a buffer size, the controller device issuing credit to the host for receipt of further frames in a manner wherein only one microprocessor is needed to process the frames while maintaining a buffer size that is as small as the number of first type of frames that can be received by the fiber channel target device from the host.

    摘要翻译: 公开了本发明的一个实施例,其包括用于以帧的形式接收信息的光纤通道目标设备,并且包括耦合到微处理器的控制器设备,用于处理从主机接收的帧,至少一个用于存储帧的接收缓冲器 并且具有缓冲器大小,所述控制器设备向所述主机发出信用以接收另外的帧,其中只需要一个微处理器来处理所述帧,同时保持与第一类型的帧的数量一样小的缓冲器大小, 可由光纤通道目标设备从主机接收。