利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.024 秒)

    Rigid magnetic disk drive head disk assembly and enclosure structure
    3.
    发明授权
    Rigid magnetic disk drive head disk assembly and enclosure structure 失效
    刚性磁盘驱动头磁盘组件和外壳结构

    公开(公告)号：US5081552A

    公开(公告)日：1992-01-14

    申请号：US304996

    申请日：1989-01-31

    申请人： Thomas W. Glaser ,  Richard Greenberg ,  Nigel F. Misso ,  Robert E. Schopp

    发明人： Thomas W. Glaser ,  Richard Greenberg ,  Nigel F. Misso ,  Robert E. Schopp

    IPC分类号： G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B33/14

    CPC分类号： G11B33/121 ,  G11B25/043 ,  G11B33/08 ,  G11B33/1493 ,  G11B5/5578 ,  G11B5/4813 ,  Y10S360/903

    摘要： A structure and organization for a magnetic disk drive provides for optimizing the volumetric storage density within a device form factor by optimizing the number of disks. The spindle and dual rotary actuators are respectively supported at each side by a pair of support plates that are separated and supported by not only the spindle and actuator shafts, but also the voice coil motor core pieces and tie plates which carry shock mounts. This head-disk assembly is shock mounted in the lower part of a two part enclosure wherein the enclosure parts are aligned and separated by elastomer guides and the separation covered by a compliant tape to complete the enclosure. Both actuators use a common servo surface while one actuator carries upwardly facing transducers and the other downwardly facing transducers so that each arm extending between disks mounts, but a single suspension-transducer assembly to reduce interdisk spacing. The enclosure occupies the entire vertical height of the form factor and the head-disk assembly occupies the full available height of the enclosure interior to accommodate as many disks as possible. Electrical components are excluded from the axial sides of the stack of disks.

    Method and system for selectively varying signal delay in response to detection of a quiescent signal
    5.
    发明授权
    Method and system for selectively varying signal delay in response to detection of a quiescent signal 失效
    响应于静态信号的检测选择性地改变信号延迟的方法和系统

    公开(公告)号：US06438703B1

    公开(公告)日：2002-08-20

    申请号：US09307982

    申请日：1999-05-10

    申请人： Lynn Charles Berning ,  Richard Greenberg

    发明人： Lynn Charles Berning ,  Richard Greenberg

    IPC分类号： G06F104

    CPC分类号： G06F5/06

    摘要： An electrical signal is communicated between a first device and a second device during a plurality of active clock periods, where the electrical signal is in one of multiple possible states during each of the active clock periods. Timing circuitry within one of the first and second devices detects a predetermined sequence of states in the electrical signal, and in response to detecting the predetermined sequence, adjusts the timing of a subsequent state of the electrical signal with respect to an associated active clock period. Adjustment of signal timing in this manner is useful in reducing signal error due to the line charging effect.

    摘要翻译： 在多个活动时钟周期期间，在第一设备和第二设备之间传送电信号，其中电信号在每个活动时钟周期期间处于多个可能状态之一。 在第一和第二设备之一内的定时电路检测电信号中的预定状态序列，并且响应于检测到预定序列，调整相对于相关联的活动时钟周期的电信号的后续状态的定时。 以这种方式调整信号定时对于减少由于线路充电效应引起的信号误差是有用的。

    Method and error correcting code (ECC) apparatus for storing predefined information with ECC in a direct access storage device
    6.
    发明授权
    Method and error correcting code (ECC) apparatus for storing predefined information with ECC in a direct access storage device 失效
    用于在直接访问存储设备中用ECC存储预定信息的方法和纠错码（ECC）装置

    公开(公告)号：US06079044A

    公开(公告)日：2000-06-20

    申请号：US892244

    申请日：1997-07-14

    申请人： Earl Albert Cunningham ,  Richard Greenberg ,  Michael J. Shea

    发明人： Earl Albert Cunningham ,  Richard Greenberg ,  Michael J. Shea

    IPC分类号： G11B20/10 ,  G06F11/10 ,  G11B20/18 ,  H03M13/00 ,  G11C29/00

    CPC分类号： G06F11/1008 ,  H03M13/00

    摘要： Apparatus and methods for storing predefined information with error correcting code (ECC) in a direct access storage device are provided. Predetermined information is identified and loaded to an ECC generator for customer data to be read and written. The identified predetermined information includes an address for customer data to be read and written. The customer data is written and loaded in parallel to the ECC generator. Then the generated ECC that reflects the pre-loaded predetermined information is written at the end of the written customer data. The customer data and ECC is read and loaded in parallel to the ECC generator. Errors in the predetermined information that is not written to the disk surface, can be detected from the read ECC.

    摘要翻译： 提供了用于在直接访问存储设备中存储具有纠错码（ECC）的预定义信息的装置和方法。 识别预定信息并将其加载到ECC发生器中，以便客户数据被读取和写入。 所识别的预定信息包括要读取和写入的客户数据的地址。 客户数据并行编写并加载到ECC发生器。 然后，在写入的客户数据的最后写入反映预加载的预定信息的生成的ECC。 客户数据和ECC与ECC发生器并行读取和加载。 可以从读取的ECC检测到未写入盘表面的预定信息中的错误。

    Method and apparatus for scheduling data accesses for random access storage devices with shortest access chain scheduling algorithm
    7.
    发明授权
    Method and apparatus for scheduling data accesses for random access storage devices with shortest access chain scheduling algorithm 失效
    用最短接入链调度算法调度随机接入存储设备的数据访问的方法和装置

    公开(公告)号：US06496877B1

    公开(公告)日：2002-12-17

    申请号：US09493456

    申请日：2000-01-28

    申请人： Richard Greenberg ,  David Robison Hall

    发明人： Richard Greenberg ,  David Robison Hall

    IPC分类号： G06F1314

    CPC分类号： G06F3/0613 ,  G06F3/0659 ,  G06F3/0674

    摘要： A method and apparatus are provided for scheduling commands for random access storage devices with a shortest access chain scheduling algorithm. A plurality of possible chains for a queue of commands are processed. The plurality of possible chains are compared to identify one of the plurality of possible chains having a predetermined property. A first command of the identified one chain having the predetermined property is selected as a next command to execute. The predetermined property includes, for example, a shortest access time or a lowest energy usage.

    摘要翻译： 提供一种方法和装置，用于以最短的接入链调度算法来调度用于随机存取存储设备的命令。 处理命令队列的多个可能的链。 比较多个可能的链以识别具有预定属性的多个可能链中的一个。 选择具有预定属性的所识别的一条链的第一命令作为执行的下一个命令。 预定的特性包括例如最短访问时间或最低能量使用。

    Actuator retract/unload system for low power disk drives
    8.
    发明授权
    Actuator retract/unload system for low power disk drives 失效
    用于低功率磁盘驱动器的执行器缩回/卸载系统

    公开(公告)号：US6016234A

    公开(公告)日：2000-01-18

    申请号：US900961

    申请日：1997-07-25

    申请人： Timothy J. Blank ,  Zine-Eddine Boutaghou ,  Kevin Jack Erickson ,  Richard Greenberg

    发明人： Timothy J. Blank ,  Zine-Eddine Boutaghou ,  Kevin Jack Erickson ,  Richard Greenberg

    IPC分类号： G11B21/12 ,  G11B5/54 ,  G11B19/20

    CPC分类号： G11B5/54 ,  G11B19/20 ,  G11B21/12

    摘要： A capacitor discharge retract system is provided for small disk drives wherein the small spindle size is incapable of generating enough electrical energy to enable conventional actuator retraction and the form factor is too small to accommodate capacitors of sufficient size to enable a conventional capacitive discharge system. A capacitive discharge retract technique is enabled using an elevated voltage, significantly above the disk drive supply voltage, to allow smaller capacitive storage elements to perform the function. The effectiveness of the system is further enhanced in those environments where a source of the required elevated voltage can be found already resident in the device circuitry where it was generated to support another function.

    摘要翻译： 为小型磁盘驱动器提供电容器放电回缩系统，其中小的主轴尺寸不能产生足够的电能以使得常规的致动器回缩并且形状因子太小而不能容纳足够尺寸的电容器以实现传统的电容放电系统。 使用显着高于磁盘驱动器电源电压的升高的电压来启用电容放电回缩技术，以允许更小的电容存储元件执行功能。 在可以发现所需升高电压的源已经存在于其被产生以支持另一功能的设备电路中的环境中，系统的有效性得到进一步提高。

    Pulsed current velocity controlled head load method and apparatus which uses the back EMF to control the generation of head actuator driving pulses
    9.
    发明授权
    Pulsed current velocity controlled head load method and apparatus which uses the back EMF to control the generation of head actuator driving pulses 失效
    脉冲电流速度控制头负载方法和装置，其使用反电动势来控制头致动器驱动脉冲的产生

    公开(公告)号：US5615064A

    公开(公告)日：1997-03-25

    申请号：US317979

    申请日：1994-10-03

    申请人： Timothy J. Blank ,  Kevin J. Erickson ,  Richard Greenberg ,  John C. Purkett

    发明人： Timothy J. Blank ,  Kevin J. Erickson ,  Richard Greenberg ,  John C. Purkett

    IPC分类号： G11B21/12 ,  G11B21/02

    CPC分类号： G11B21/12

    摘要： A digital storage system is disclosed in which a flying read/write head is loaded onto the surface of moving storage media with controlled velocity to avoid contact with the surface of the storage media. Head load velocity is detected by measuring the back EMF generated by the head arm actuator. Improved control and accuracy is obtained by breaking up the head arm actuator drive power into a series of pulses and measuring the back EMF induced into the low impedance voice coil of the head arm actuator in between pulses but only after the actuator current has been reduced to substantially zero in order to avoid interference by actuator current induced voltages.

    摘要翻译： 公开了一种数字存储系统，其中飞行读/写头以受控速度加载到移动存储介质的表面上，以避免与存储介质的表面接触。 通过测量头臂执行器产生的反电动势来检测头部负载速度。 通过将头臂致动器驱动功率分解为一系列脉冲并且在脉冲之间测量在头臂致动器的低阻抗音圈中感应的反电动势，但仅在致动器电流已经减小到 基本为零，以避免致动器电流感应电压的干扰。