公开(公告)号：WO1995022821A1

公开(公告)日：1995-08-24

申请号：PCT/US1995002003

申请日：1995-02-17

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  MATHEWS, Harlan, P. ,  GERCKEN, Robert, E. ,  ADCOCK, Patrick, L.

IPC: G11B05/09

CPC classification number: G11B5/09 ,  G11B20/10009

Abstract: A differentiating qualifier channel in a hard disk drive is disclosed. The analog signal read off a magnetic disk by the transducer is amplified and filtered, then immediately differentiated (201). This differentiated waveform is used both to qualify (202) and to detect (205) the peaks of the analog read signal. Data pulses are qualified (202) by noting that the differentiated waveform always changes polarity (203) after the zero crossing of a valid peak. Positive and negative peak signals are generated whenever the differentiated waveform exceeds (203) positive and negative thresholds. From this, a polarity signal is constructed (204). The pulses, indicating where the polarity signal changes state, are used to enable a latch (208). The latch (208) is clocked by a zero crossing signal (206) which has been delayed (207) such that the zero crossings occur after the change in polarity. The output from this latch (208) gives the valid qualified data pulses.

Abstract translation: 公开了一种在硬盘驱动器中的区分限定符通道。 由传感器读出磁盘的模拟信号被放大并过滤，然后立即区分（201）。 该差分波形用于限定（202）和检测（205）模拟读取信号的峰值。 通过注意到有效峰过零后，微分波形总是改变极性（203），对数据脉冲进行限定（202）。 每当差分波形超过（203）正和负阈值时，产生正和负峰值信号。 由此构成极性信号（204）。 指示极性信号改变状态的脉冲用于启用锁存器（208）。 锁存器（208）由已被延迟（207）的过零信号（206）计时，使得在极性改变之后出现过零点。 该锁存器（208）的输出给出有效的合格数据脉冲。

公开(公告)号：WO1995016261A1

公开(公告)日：1995-06-15

申请号：PCT/US1994014126

申请日：1994-12-08

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  KIMMAL, Jay, M.

IPC: G11B05/60

CPC classification number: G11B5/486

Abstract: An actuator arm assembly for a hard disk drive which does not have a flexbeam substrate. The actuator arm assembly includes an actuator arm (12) and a magnetic head (16) that is electrically coupled to the electronics of the drive by a plurality of wires (22). The wires are also constructed to structurally support the head in a position cantilevered from the actuator arm. To provide structural integrity, the wires can be either twisted, constructed from beryllium copper, attached to a polyimide sheet or have any combination of the above. The wires may also have a sheet of viscoelastomeric material to dampen the structure.

Abstract translation: 一种用于不具有挠性基片的硬盘驱动器的致动臂组件。 致动器臂组件包括致动器臂（12）和磁头（16），其通过多根电线（22）电耦合到驱动器的电子器件。 电线也被构造成结构地将头部支撑在从致动器臂悬臂的位置。 为了提供结构完整性，电线可以被扭曲，由铍铜构成，连接到聚酰亚胺片上或者具有上述的任何组合。 电线也可以具有一块粘弹性材料以阻尼结构。

公开(公告)号：WO1994029866A1

公开(公告)日：1994-12-22

申请号：PCT/US1994006586

申请日：1994-06-08

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  SEAVER, Jay, R. ,  DIEL, Mark, A. ,  TITCOMB, Forrest

IPC: G11B25/04

CPC classification number: F16C17/105 ,  F16C2370/12 ,  G11B19/2009 ,  G11B25/043

Abstract: An ultra-slim disk storage unit includes a frame and a cover for engaging the frame to create first and second enclosed spaces therein. In one of the enclosed spaces a disk drive assembly means is housed which provides readable and writeable information storage on a disk medium. An electronic means for controlling the operation of the disk drive assembly means is housed on a board contained within the second enclosed space. An interconnected means provides coupling to the electronic means for external electrical connection to the disk storage unit. The interconnect means is disposed along a peripheral side of the frame in accordance with PCMCIA standards.

Abstract translation: 超薄盘存储单元包括框架和用于接合框架以在其中产生第一和第二封闭空间的盖。 在一个封闭的空间中，容纳一个磁盘驱动器组件装置，其在盘介质上提供可读写的信息存储。 用于控制盘驱动器组件装置的操作的电子装置容纳在包含在第二封闭空间内的板上。 互连装置提供与电子装置的联接，用于与盘存储单元的外部电连接。 互连装置根据PCMCIA标准沿着框架的外围侧布置。

公开(公告)号：WO1994011969A1

公开(公告)日：1994-05-26

申请号：PCT/US1993010291

申请日：1993-10-27

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  McLEAN, Peter, T. ,  CUCCIO, Allen, B., J.

IPC: H04L09/00

CPC classification number: G06F21/78 ,  G06F12/1466

Abstract: A computer system having a memory card (301) for storing data that is capable of being removed and reinserted and also having the capability of safeguarding the data stored thereon. A password is stored on the memory card. The memory card is set in a secured mode to prevent unauthorized access to the data stored on the memory card. Once the memory card is set in secure mode, it remains in secure mode, even when removed from the computer system (302) and subsequently inserted back into that or another computer system. Access to the data is permitted when the memory card is set in secure mode only if a valid password is provided to the memory card.

Abstract translation: 一种具有存储卡（301）的计算机系统，用于存储能够被去除和重新插入并且还具有保护其上存储的数据的能力的数据。 密码存储在存储卡上。 存储卡设置为安全模式，以防止未经授权的访问存储在存储卡上的数据。 一旦存储卡被设置为安全模式，即使当从计算机系统（302）被移除并且随后插入到该另一个计算机系统中时，它仍保持在安全模式。 只有当有效密码提供给存储卡时，才能将存储卡设置为安全模式，才能访问数据。

公开(公告)号：WO1994011875A1

公开(公告)日：1994-05-26

申请号：PCT/US1993009876

申请日：1993-10-13

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  DION, F., Eugene

IPC: G11B21/22

CPC classification number: G11B5/54

Abstract: A detent mechanism for securing the magnetic head (20) of a hard disk drive unit (10) above a landing zone (24) of a magnetic disk (16) when power to the disk drive unit (10) is terminated. The detent mechanism includes a first detent (74) which is attached to the actuator arm (26) and a second detent (76) that is mounted to the housing (12) of the disk drive unit (10). The detents (74, 76) have a pair of teeth (78, 80) that become locked when the actuator arm (26) rotates above the landing zone (24) of the disk (16). The detents (74, 76) are constructed to be flexible enough, so that the teeth (78, 80) may be separated when power is supplied to the drive unit (10) and the actuator arm (26) is rotated away from the landing zone (24).

Abstract translation: 一种用于在停止对磁盘驱动单元（10）的电力时将硬盘驱动单元（10）的磁头（20）固定在磁盘（16）的着陆区（24）上方的制动机构。 制动机构包括附接到致动器臂（26）的第一棘爪（74）和安装到盘驱动单元（10）的壳体（12）的第二棘爪（76）。 棘爪（74,76）具有当致动器臂（26）在盘（16）的着陆区（24）上方旋转时被锁定的一对齿（78,80）。 棘爪（74,76）被构造成具有足够的柔性，使得当向驱动单元（10）供电并且致动器臂（26）从着陆点旋转时，齿（78,80）可以被分离 区（24）。

公开(公告)号：WO1994011873A1

公开(公告)日：1994-05-26

申请号：PCT/US1993009970

申请日：1993-10-18

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  CUCCIO, Allen ,  DION, F., Eugene ,  KLERKS, August, L. ,  CHESSMAN, H., Ross

IPC: G11B17/08

CPC classification number: G11B33/121 ,  G11B19/2009 ,  G11B25/043

Abstract: A portable pocket-size hard disk drive unit (10) that conforms with the PCMCIA type III format. The drive unit includes a housing (12) that contains a pair of magnetic disks (48, 50) that are coupled to a hub assembly. The hub assembly has a hub (52) which is rotated about a spindle shaft (54) by an electric motor (66) that is located within the hub. The hub assembly also has a pair of fluid bearings (96, 100) which have a small profile and are rugged enough to withstand the type of external loads that may be applied to a hand held portable disk drive unit. The magnetic disks rotate relative to a head/actuator assembly which is coupled to a connector (14) located on the end of the housing. The connector is adapted to mate with a connector in a computer system to couple the magnetic disks and disk drive assembly with the computer.

Abstract translation: 符合PCMCIA III型格式的便携式袖珍硬盘驱动器单元（10）。 驱动单元包括壳体（12），其包含联接到轮毂组件的一对磁盘（48,50）。 毂组件具有轮毂（52），轮毂（52）通过位于轮毂内的电动机（66）围绕主轴（54）旋转。 轮毂组件还具有一对流体轴承（96,100），其具有小的轮廓并且具有足够的坚固性以承受可施加到手持便携式盘驱动单元的外部载荷的类型。 磁盘相对于头/致动器组件旋转，头/致动器组件联接到位于壳体的端部上的连接器（14）。 连接器适于与计算机系统中的连接器配合，以将磁盘和磁盘驱动器组件与计算机耦合。

公开(公告)号：WO1992016937A1

公开(公告)日：1992-10-01

申请号：PCT/US1992002257

申请日：1992-03-19

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  HARGARTEN, Jim ,  COUNTS, Gary ,  CHASE, Scott

IPC: G11B05/55

CPC classification number: G11B5/5547

Abstract: An actuator control loop for controlling head position (X Head 103) in a rotating media data storage system. The invention applies a compensation zero to a PES (Position Error Signal) prior to suumming (102) it with an integrator (112). This scheme reduces transients caused by the integrator (112) initialization step because the zero does not 'see' the integrator (112) initialization step. Transients that can result from coupling the integrator (112) initialization to the zero can cause overshoot and ringing in the actuator (X Head 103) increasing settling time and reducing system performance. The present invention also provides a first sample velocity compensation scheme (402) that removes the velocity correction factor (J) from the PES (Position Error Signal) signal in the first sample after a seek. This significantly reduces settling time and improves system performance.

公开(公告)号：WO1992016936A1

公开(公告)日：1992-10-01

申请号：PCT/US1992002116

申请日：1992-03-13

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WILSON, Rosser, S.

IPC: G11B05/55

CPC classification number: G11B5/59616

Abstract: This invention relates to the detection in digital form of position error signals (PES) by employing a digital integrator (36) which comprises a register (48) and adder (46). A composite servo data is amplified by variable gain amplifier (22) and then undergoes low pass filtering (26) before being digitized by an analog to digital converter (ADC) (34). The digital integration is performed by accumulating a constant number of ADC samples in the register (48). Before being accumulated in the register (48), the sampled servo data is alternately multiplied by plus one or minus one for synchronous rectification, using an exclusive-OR gate (44) cascade interposed between the ADC output and adder input. Upon completion of accumulation of a prescribed number of ADC samples, the contents of the register (48) are transferred to a temporary buffer (30) pending interrogation by a servo controlled digital signal processor (DSP).

公开(公告)号：WO1990005982A1

公开(公告)日：1990-05-31

申请号：PCT/US1989005032

申请日：1989-11-07

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  O'SULLIVAN, William ,  FREEMAN, Robert ,  WRIGHT, Harold, T.

IPC: G11B23/02

CPC classification number: G11B33/1406 ,  G11B19/2009 ,  G11B25/043

Abstract: The present invention is directed to a dedicated servo disk drive providing high track density which is substantially thermally independent. The present invention relies on a dual approach to minimize off tracking due to differential thermal expansion of thermally sensitive components such as servo disks, data disks (18), shafts (22) and supports (56, 58). The present invention seeks to keep the temperature within an acceptable range and to eliminate temperature gradients that can cause differential thermal expansion. The first step utilizes thermal isolation (76) of the temperature sensitive components from external temperature variations. The preferred embodiment of the present invention utilizes a novel isolated "box within a box" architecture to provide a thermal buffer to these external temperature gradients. The external structure (64, 66) and isolators (76) create a thermal buffer to shield the inner HDA support structure (56, 68) from external heat sources. The present invention also provides a thermally symmetrical environment in the area of thermally sensitive components that culd otherwise degrade tracking during temperature transients.

Abstract translation: 本发明涉及提供基本上热独立的高轨道密度的专用伺服盘驱动器。 本发明依赖于一种双重方法，以便使诸如伺服盘，数据盘（18），轴（22）和支撑（56,58）之类的热敏元件的热膨胀差异最小化。 本发明寻求将温度保持在可接受的范围内并消除可能导致不同热膨胀的温度梯度。 第一步采用热敏隔离（76）的温度敏感元件从外部温度变化。 本发明的优选实施例利用了一种新颖的隔离“箱体”框架，以向这些外部温度梯度提供热缓冲器。 外部结构（64,66）和隔离器（76）产生热缓冲器以将内部HDA支撑结构（56,68）与外部热源隔离。 本发明还提供了热敏部件的热对称环境，否则会在温度瞬变期间降低跟踪。

公开(公告)号：WO1990005339A1

公开(公告)日：1990-05-17

申请号：PCT/US1989005033

申请日：1989-11-07

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  McKINLEY, David ,  GALE, Warren ,  TSENG, John

IPC: G06F13/10

CPC classification number: G06F3/0601 ,  G06F8/65 ,  G06F2003/0692 ,  G11C29/48

Abstract: The present invention is directed to a control system for a rotating media storage device. The rotating media storage device includes a control board having a ROM to store a basic power up control program, one or more processing means for control of the storage device and communication between the storage device and the host computer and a read/write memory means such as a RAM. When the storage device is powered up, the basic code in ROM initializes the control system, activates the rotating storage media, and accesses a control code stored on the storage media. This permits changing and updating of the control program simply by writing to disk and transferring the new program into the RAM for execution. In addition, it is not necessary to power down the drive in order to change the control program. The control system of the present invention includes a dual processor architecture for distributed control of storage device operations. Communication between the processors is accomplished on a microwire utilizing a novel communications protocol which permits high speed processing of individual distributed functions and high speed communication between the processors. The present invention provides a serial port coupled to the processors and used to implement a test environment with a host computer. Emulation code can be downloaded to the storage device to the serial port and stored in the RAM memory.

Abstract translation: 本发明涉及一种用于旋转介质存储装置的控制系统。 旋转介质存储装置包括具有存储基本上电控制程序的ROM的控制板，存储装置的控制和存储装置与主计算机之间的通信的一个或多个处理装置以及存储装置与主计算机之间的读/写存储装置 作为RAM。 当存储设备通电时，ROM中的基本代码初始化控制系统，激活旋转存储介质，并访问存储在存储介质上的控制代码。 这允许仅通过写入磁盘并将新程序传送到RAM中才能执行控制程序的更改和更新。 此外，为了更改控制程序，不需要关闭驱动器电源。 本发明的控制系统包括用于存储设备操作的分布式控制的双处理器架构。 处理器之间的通信是利用新颖的通信协议在微线上完成的，该协议允许单个分布式功能的高速处理和处理器之间的高速通信。 本发明提供了一种串行端口，其耦合到处理器并用于与主计算机实现测试环境。 仿真代码可以下载到存储设备到串行端口并存储在RAM存储器中。