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    • 1. 发明申请
    • DISK DRIVE AND RECORDING OR REPRODUCING METHOD THEREFOR
    • 磁盘驱动器及其记录或复制方法
    • WO1997033281A1
    • 1997-09-12
    • PCT/JP1997000735
    • 1997-03-10
    • SONY CORPORATIONMUTO, Takayasu
    • SONY CORPORATION
    • G11B19/00
    • G11B5/5582G11B7/0037G11B7/004G11B7/0045G11B7/005G11B11/10502G11B11/10504G11B11/10515G11B11/10595G11B19/02G11B19/04G11B21/08G11B21/083
    • A disk drive adapted to avoid recording of data onto a magneto-optical disk based on an abnormal basic clock even if the loop for generating a basic clock is disturbed by a disturbance due to a defect on the magneto-optical disk and a phase error becomes large. The disk drive comprises rotation driving means for rotationally driving a disk, data recording/reproducing means having a head movable in the radial direction of the disk, for recording or reproducing data on or from the disk, basic clock information generating means for generating basic clock information used in recording or reproducing the data on or from the disk, clock controlling means for generating phase error information indicative of a phase error between the basic clock information and phase information relative to the rotation of the disk and controlling the basic clock generating means on the basis of the phase error information, threshold value judging means for judging whether or not the phase error exceeds a predetermined threshold value, and data record/reproduction controlling means for controlling the data recording/reproducing means on the basis of the output result of the threshold value judging means.
    • 一种磁盘驱动器,适于基于异常基本时钟避免将数据记录到磁光盘上,即使用于产生基本时钟的环路由于磁光盘上的缺陷导致的干扰而被干扰,并且相位误差变为 大。 磁盘驱动器包括用于旋转驱动盘的旋转驱动装置,具有可沿盘的径向移动的头的数据记录/再现装置,用于在盘上或从盘上记录或再现数据;基本时钟信息产生装置,用于产生基本时钟 用于在盘上记录或再现数据的信息;时钟控制装置,用于产生指示基本时钟信息和相对于盘的旋转的相位信息之间的相位误差的相位误差信息,并且控制基本时钟产生装置 相位误差信息的基础,用于判断相位误差是否超过预定阈值的阈值判定装置,以及用于根据输出结果控制数据记录/再现装置的数据记录/再现控制装置 阈值判定装置。
    • 3. 发明申请
    • AN EMBEDDED SERVO SYSTEM WITH REDUCED AGC OVERHEAD
    • 具有减少AGC的嵌入式伺服系统
    • WO1993006593A1
    • 1993-04-01
    • PCT/US1992007908
    • 1992-09-24
    • INTEGRAL PERIPHERALS, INC.
    • INTEGRAL PERIPHERALS, INC.COWEN, Stephen, R.
    • G11B05/09
    • G11B5/09G11B5/59622G11B5/59655G11B19/00G11B19/12G11B19/28G11B20/10G11B20/1251G11B21/08G11B23/36G11B27/19G11B27/3027G11B2220/20G11B2220/2516
    • The prerecorded embedded servo field (300) of this invention provides an enhanced level of functionality without increasing the servo field overhead. A prerecorded embedded servo field (300) includes a first sub-field (302) of prerecorded information that simultaneously provides (i) automatic gain control data for a third sub-field (306) and (ii) data for a first servo function, and a second sub-field (302) of prerecorded information that simultaneously provides (i) automatic gain control (AGC) data for the third sub-field (306) and (ii) data for a second servo function. Since the first and the second sub-fields (302, 303) in the servo field (300) of this invention are used for AGC and another servo function, the sub-fields are arranged within the servo field (300) so that the sub-field (302) that requires the least precise AGC control is first and the sub-field (306) that requires the most precise AGC control is last.
    • 本发明的预先记录的嵌入式伺服字段(300)提供了增强的功能级别,而不增加伺服字段开销。 预先记录的嵌入式伺服字段(300)包括预先记录的信息的第一子字段(302),其同时提供(i)用于第三子场(306)的自动增益控制数据和(ii)用于第一伺服功能的数据, 以及同步提供(i)用于第三子场(306)的自动增益控制(AGC)数据和(ii)用于第二伺服功能的数据的预先记录信息的第二子场(302)。 由于本发明的伺服字段(300)中的第一和第二子场(302,303)用于AGC和另一个伺服功能,所以子场被布置在伺服字段(300)内,使得子 首先需要最不精确的AGC控制的场(302),并且需要最精确的AGC控制的子场(306)是最后的。
    • 4. 发明申请
    • DISK DEVICE
    • 磁盘设备
    • WO02039435A1
    • 2002-05-16
    • PCT/JP2001/008738
    • 2001-10-03
    • G11B7/00G11B7/085G11B7/13G11B11/105G11B21/08
    • G11B21/08G11B7/00G11B7/08529G11B11/10563
    • A disk device (10) includes an optical lens (14). A seeking action is made by moving the optical lens in the radial direction of the recording face of a magneto-optic disk (40). In the seeking action, a TE signal detecting circuit (26) generates a TE signal on the basis of a laser beam reflected from the recording face, and feeds the generated TE signal to a DSP (34) through an A/D converter (32a). The DSP detects the peak level of the TE signal and a level change in the TE signal per unit time, and generates a tracking actuator control voltage on the basis of the peak level and the level change detected. The moving rate of the optical lens is controlled by the tracking actuator control voltage generated.
    • 盘装置(10)包括光学透镜(14)。 通过沿着磁光盘(40)的记录面的径向方向移动光学透镜来进行搜索动作。 在搜索动作中,TE信号检测电路(26)基于从记录面反射的激光束生成TE信号,并且通过A / D转换器(32a)将生成的TE信号馈送到DSP(34) )。 DSP检测TE信号的峰值电平和每单位时间的TE信号的电平变化,并且基于检测到的峰值电平和电平变化产生跟踪致动器控制电压。 光学透镜的移动速度由产生的跟踪致动器控制电压控制。
    • 5. 发明申请
    • APPARATUS FOR RECORDING DATA IN PARALLEL TRACKS
    • 用于记录并行轨道数据的装置
    • WO99052099A1
    • 1999-10-14
    • PCT/IB1999/000493
    • 1999-03-22
    • G11B5/29G11B5/008G11B5/584G11B7/14G11B11/105G11B15/07G11B15/087G11B15/12G11B21/08G11B21/10
    • G11B5/00813G11B5/00817G11B5/00878G11B5/584G11B7/14G11B11/10595G11B15/07G11B15/087G11B15/125G11B21/08G11B21/085G11B21/088G11B21/10
    • An apparatus is provided with a thin film magnetic head (20) with eight write units (21-28) positioned adjacent to each other in a transversal direction (y) to write data in parallel tracks on a magnetic tape (10). Switching means (70) are provided with a switch (SW) to switch from a normal mode to a combination mode. In the normal mode the switch (SW) is in a first position (D1) and the switching means (70) couple a first data signal (S1) to a first write unit (21), a second data signal (S2) to a second write unit (22) etc., so that in the normal mode eight tracks (T21-T28) are written on the tape (10), resulting in a first track density. In the combination mode the switch (SW) is in a second position (D2) and the switching means (70) couple the first data signal (S1) to the first and second write units (21 and 22), the second data signal (S2) to the third and fourth write unit (23 and 24), etc. Hence, in the combination mode, four tracks (T1-T4) are written on the tape (10), resulting in a second track density which is half the first track density. This second track density corresponds to the density of the write units of a magnetic head (2) of an apparatus (not shown) of an older generation.
    • 一种装置设置有薄膜磁头(20),具有沿横向方向(y)彼此相邻定位的八个写入单元(21-28),以将数据写入磁带(10)上的平行轨道。 切换装置(70)设置有从正常模式切换到组合模式的开关(SW)。 在正常模式下,开关(SW)处于第一位置(D1),开关装置(70)将第一数据信号(S1)耦合到第一写入单元(21),第二数据信号(S2)耦合到 第二写入单元(22)等,使得在正常模式下,在磁带(10)上写入8个磁道(T21-T28),产生第一磁道密度。 在组合模式中,开关(SW)处于第二位置(D2),开关装置(70)将第一数据信号(S1)耦合到第一和第二写入单元(21和22),第二数据信号 S2)到第三和第四写入单元(23和24)等。因此,在组合模式中,在磁带(10)上写入四个磁道(T1-T4),导致第二磁道密度为 第一轨道密度。 该第二轨道密度对应于老一代装置(未示出)的磁头(2)的写入单元的密度。
    • 6. 发明申请
    • DISK DRIVE ACTUATOR USING FIBER COMPOSITE MATERIAL
    • 使用纤维复合材料的磁盘驱动器执行器
    • WO99009544A1
    • 1999-02-25
    • PCT/US1998/016963
    • 1998-08-14
    • G11B5/48G11B5/55G11B21/02G11B21/08G11B21/16G11B21/18
    • G11B21/16G11B5/4833G11B5/486G11B5/553G11B5/5582G11B21/02G11B21/08G11B21/18
    • A disk drive system includes a base, a disk rotatably attached to the base, and an actuator assembly movably attached to the base. The actuator assembly moves the transducer to selected areas of the disk where information representative of data is to be written or read. The actuator assembly maintains the transducer in a transducing relationship with the disk. The actuator assembly also includes an arm which has a first layer of material including a plurality of elongated fibers orientated in a first direction, and a second layer of material including a plurality of elongated fibers orientated in a second direction. The first and second layers are part of a composite material. The transducer is attached to said arm. The resulting actuator arm has a resonant frequency that can be varied or moved or shifted by varying the direction of the elongated fibers in the second layer with respect to the direction of the elongated fibers in the first layer. The resonant frequency is varied so that it is at a different frequency than the resonant frequency peaks associated with the other components of the disk drive, such as the resonance frequency of the disk or disks of the drive and the head suspension assembly (HSA). The arm may also include signal-carrying wires which are positioned between the layers of the composite arm and heat conductive fibers to remove heat from a heat producing source, such as from a chip on the arm.
    • 磁盘驱动器系统包括基座,可旋转地附接到基座的盘,以及可移动地附接到基座的致动器组件。 致动器组件将换能器移动到盘的选定区域,其中代表数据的信息将被写入或读取。 致动器组件将换能器保持与盘的换能关系。 所述致动器组件还包括臂,所述臂具有包括沿第一方向定向的多个细长纤维的第一材料层和包括沿第二方向定向的多个细长纤维的第二材料层。 第一层和第二层是复合材料的一部分。 传感器连接到所述臂。 所产生的致动器臂具有通过相对于第一层中的细长纤维的方向改变第二层中的细长纤维的方向而可以改变或移动或移动的共振频率。 谐振频率是变化的,使得其处于与盘驱动器的其他部件相关联的谐振频率峰值的不同频率,例如驱动器的磁盘或磁盘悬架组件(HSA)的共振频率。 臂还可以包括位于复合臂的层之间的信号承载线和导热纤维,以从发热源例如从臂上的芯片移除热量。
    • 7. 发明申请
    • LINEAR GUIDE
    • 线性指南
    • WO01021971A2
    • 2001-03-29
    • PCT/NL2000/000680
    • 2000-09-22
    • F16C29/04G11B5/48G11B21/08H02K41/02
    • G11B5/48F16C29/04G11B21/08H02K41/02
    • A linear guide comprises a bearing element (1) and a slide (3) which is reciprocably slidable, by means of balls (2), relative to the bearing element (1) in a defined direction, along the Z-axis. For each ball (2) a movement space is present between the bearing element and the slide, in which space a force field is present, so that for the ball (2) a preferred position in this space exists, and wherein, as soon as the ball leaves this preferred position, a force is exerted on the ball by the force field, which force is directed substantially towards the middle of the preferred position.
    • 线性引导件包括轴承元件(1)和滑动件(3),滑动件(3)通过滚珠(2)沿着Z轴在限定的方向上相对于轴承元件(1)可往复滑动。 对于每个球(2),在轴承元件和滑块之间存在移动空间,在该空间中存在力场,使得对于球(2),存在该空间中的优选位置,并且其中,一旦 球离开这个优选位置,力通过力场施加在球上,该力基本上朝向优选位置的中间。
    • 8. 发明申请
    • HORIZONTAL LOADER FOR HIGH DENSITY SERVO TRACK WRITING
    • 用于高密度伺服轨迹书写的水平装载机
    • WO00041177A1
    • 2000-07-13
    • PCT/US1999/017582
    • 1999-08-03
    • G11B33/08G11B21/08G11B21/10G11B33/12G11B5/596
    • G11B21/08
    • One aspect of the invention relates to an apparatus and method for retaining a disc drive head disc assembly (HDA) (152) during a servo track writing procedure. The HDA (152) includes a base, a disc stack coupled to a spindle (133) rotatably attached to the base by a spindle shaft (138), and an actuator assembly (120) pivotally attached to the base at a pivot shaft (118). Attached to one end of the actuator assembly (120) proximal the disc stack is one or more transducers for reading/writing information from/to the discs. The method includes restraining the ends of the spindle shaft (138) and pivot shaft (118) during servo track writing so that relative deflection therebetween is minimized. That is, all but rotational motion of the components is substantially eliminated. An apparatus for restraining the ends of the spindle shaft (138) and the pivot shaft (118) is also provided. By so restraining the shaft and spindle, the servo information written by the transducers is concentric to the rotation of the disc, thus reducing track misregistration and improving maximum track density.
    • 本发明的一个方面涉及一种用于在伺服轨迹写入过程期间保持盘驱动头盘组件(HDA)(152)的装置和方法。 HDA(152)包括底座,联接到通过主轴(138)可旋转地附接到基座的心轴(133)的盘叠,以及致动器组件(120),其枢转地以枢转轴(118)附接到基座 )。 附接到靠近盘堆栈的致动器组件(120)的一端是用于从/向盘读/写信息的一个或多个换能器。 该方法包括在伺服轨迹写入期间限制主轴(138)和枢转轴(118)的端部,使得它们之间的相对偏转最小化。 也就是说,基本上消除了部件的旋转运动。 还提供了用于限制主轴(138)和枢轴(118)的端部的装置。 通过这样限制轴和主轴,由换能器写入的伺服信息与盘的旋转同心,从而减少轨道重合失调并提高最大轨道密度。
    • 9. 发明申请
    • E-BLOCK HEAD STACK MICROACTUATOR ASSEMBLY
    • 电子书架堆栈微处理器总成
    • WO1998027546A1
    • 1998-06-25
    • PCT/US1997007352
    • 1997-05-01
    • SEAGATE TECHNOLOGY, INC.FARD, Anoush, M.MOHAJERANI, KhosrowSAMPIETRO, Joseph, M.BARINA, Jeffrey, G.HAWWA, Muhammad, A.
    • SEAGATE TECHNOLOGY, INC.
    • G11B05/55
    • G11B5/5552G11B5/4873G11B21/08G11B21/106
    • A system for positioning a transducing head of a disc drive over a selected track (42) of a rotatable disc (40) includes an actuator assembly (20, 50) having an E-block body (25) including a cavity (37), at least one actuator arm (30) extending from the E-block body (25), a head suspension mechanism (34, 36, 38) including the transducing head connected to an end of the actuator arm (30), and a pivot cartridge (26) in the cavity (37) in the E-block body (25). The E-block body (25) is attached to the pivot cartridge (26) and forms a hinge point (39) between the E-block body (25) and the pivot cartridge (26). A low resolution motor (22) rotates the actuator assembly (20, 50) about an axis (24) to effect coarse positioning of the head with respect to the selected track (42) of the rotatable disc (40). A piezoelectric element (27, 52) in the E-block body (25) is selectively expanded and contracted to distort the E-block body (25) around the hinge point (39) to effect fine positioning of the head with respect to the selected track (42) of the rotatable disc (40).
    • 用于将盘驱动器的换能头定位在可旋转盘(40)的选定轨道(42)上的系统包括具有包括空腔(37)的E形块体(25)的致动器组件(20,50) 从所述E形块主体(25)延伸的至少一个致动器臂(30),包括连接到所述致动器臂(30)的端部的所述换能头的头部悬挂机构(34,36,38) (26)在E块体(25)中的空腔(37)中。 E块体(25)连接到枢轴筒(26)上,并在E块体(25)和枢轴筒(26)之间形成铰链点(39)。 低分辨率马达(22)围绕轴线(24)旋转致动器组件(20,50),以实现头部相对于可旋转盘(40)的选定轨道(42)的粗略定位。 E块体(25)中的压电元件(27,52)选择性地膨胀和收缩,以使铰链点(39)周围的E形块体(25)变形,以使头部相对于 所述可旋转盘(40)的所选轨道(42)。