Servo controlling method, recording/reproducing apparatus, magnetic tape, and magnetic tape cartridge
    11.
    发明授权
    Servo controlling method, recording/reproducing apparatus, magnetic tape, and magnetic tape cartridge 有权
    伺服控制方法,记录/重放装置,磁带和磁带盒

    公开(公告)号:US07652841B2

    公开(公告)日:2010-01-26

    申请号:US12026391

    申请日:2008-02-05

    IPC分类号: G11B5/584 G11B21/02

    CPC分类号: G11B5/584

    摘要: A servo controlling method of the present invention is a servo controlling method for controlling a position of a magnetic head against a magnetic tape that is accommodated in a cartridge and has at least a data track and a servo track, and the method includes the steps of: reading tape variance information from a magnetic tape cartridge (23) side, the magnetic tape cartridge (23) being composed of a cartridge (20) and a magnetic tape (21); reading a servo signal recorded in the servo track by the magnetic head and converting the servo signal into head position information; and controlling the position of the magnetic head according to an off-track value based on the tape variance information and an off-track value calculated from the head position information. With this configuration, even in the case where a recording track width is narrowed and a tape speed is increased, the magnetic head can follow a recording track accurately at a high speed.

    摘要翻译: 本发明的伺服控制方法是一种伺服控制方法,用于控制磁头相对于容纳在盒中的磁带的位置,并且至少具有数据磁道和伺服磁道,并且该方法包括以下步骤: :从磁带盒(23)侧读取磁带方差信息,磁带盒(23)由盒(20)和磁带(21)构成; 通过磁头读取记录在伺服轨道中的伺服信号,并将伺服信号转换为头位置信息; 以及根据磁带方差信息和从磁头位置信息计算的偏离磁道值,根据偏离磁道值来控制磁头的位置。 利用这种配置,即使在记录磁道宽度变窄并且磁带速度增加的情况下,磁头可以高速跟踪记录磁道。

    SERVO SIGNAL RECORDING APPARATUS, INFORMATION RECORDING APPARATUS, AND TRACKING SERVO METHOD
    12.
    发明申请
    SERVO SIGNAL RECORDING APPARATUS, INFORMATION RECORDING APPARATUS, AND TRACKING SERVO METHOD 有权
    伺服信号记录装置,信息记录装置和跟踪伺服方法

    公开(公告)号:US20090296269A1

    公开(公告)日:2009-12-03

    申请号:US12476773

    申请日:2009-06-02

    IPC分类号: G11B5/584

    CPC分类号: G11B5/584

    摘要: In the apparatus and method of the invention, a servo signal reproduction unit generates a PES from a servo signal reproduced from a magnetic tape, and a frequency conversion unit performs FFT processing of the PES to generate frequency component information. Then, a filter value generation unit generates filter values based on the frequency component information and writes these to a memory. When recording various data signals to the magnetic tape, the filter values are read from the memory and a control filter serving as a notch filter is incorporated into a feedback control for a tracking servo. This enables periodic and narrow-band noise to be removed from a PES, consequently reducing PESs. Accordingly, learning-type optimum notch filter control that allows a magnetic head to follow recording tracks at high speed and with high precision is possible even when the recording track width is reduced and the tape speed is increased.

    摘要翻译: 在本发明的装置和方法中,伺服信号再现单元从从磁带再现的伺服信号产生PES,并且频率转换单元执行PES的FFT处理以产生频率分量信息。 然后,滤波器值生成单元基于频率分量信息生成滤波器值,并将其写入存储器。 当将各种数据信号记录到磁带上时,从存储器中读取滤波器值,并且将用作陷波滤波器的控制滤波器并入用于跟踪伺服的反馈控制。 这使得能够从PES去除周期性和窄带噪声,从而减少PES。 因此,即使当记录磁道宽度减小并且磁带速度增加时,也可以使磁头以高速和高精度跟随记录磁道的学习型最佳陷波滤波器控制。

    MAGNETIC HEAD ASSEMBLY AND MAGNETIC TAPE DRIVING APPARATUS
    13.
    发明申请
    MAGNETIC HEAD ASSEMBLY AND MAGNETIC TAPE DRIVING APPARATUS 失效
    磁头组件和磁带驱动装置

    公开(公告)号:US20090052093A1

    公开(公告)日:2009-02-26

    申请号:US12191925

    申请日:2008-08-14

    IPC分类号: G11B5/33

    摘要: A magnetic head assembly of the present invention includes a head rail having a plurality of head element portions each including a MR element and sliding portions that come into contact with a magnetic tape, and a protective film on a magnetic tape sliding surface of the head element portions and the sliding portions, wherein the protective film is formed in a portion other than the vicinity of both ends of the head rail in a traveling direction, and an outermost surface of the protective film, on which a magnetic tape is capable of sliding, is formed flat. Thus, a magnetic head assembly used in a magnetic tape apparatus can be provided, in which an output does not decrease due to the abrasion deformation of the head element portions and the increase in spacing by the adhesion of stain.

    摘要翻译: 本发明的磁头组件包括具有多个磁头元件部分的磁头导轨,磁头元件部分各自包括MR元件和与磁带接触的滑动部分,以及在磁头元件的磁带滑动表面上的保护膜 部分和滑动部分,其中保护膜沿行进方向形成在头轨两端附近的部分中,以及保护膜的能够滑动的最外表面, 形成平坦。 因此,可以提供在磁带装置中使用的磁头组件,其中由于头元件部分的磨损变形而导致的输出不会减小,并且由于污渍的附着而增加间隔。

    Apparatus and method for measuring spacing
    14.
    发明申请
    Apparatus and method for measuring spacing 审中-公开
    仪器和方法测量间距

    公开(公告)号:US20080123102A1

    公开(公告)日:2008-05-29

    申请号:US11717672

    申请日:2007-03-14

    IPC分类号: G01B9/02 G01B11/02

    CPC分类号: G01B11/026 G11B15/62

    摘要: An apparatus is provided for measuring a spacing between an object to be measured T and a transparent object 4. The transparent object 4 is disposed, facing a surface of the object to be measured T, light is emitted to impinge through the transparent object 4 onto the object to be measured T, and the spacing is calculated based on an intensity of interference light occurring in a facing portion between the surface of the object to be measured T and the transparent object 4. The apparatus comprises a light source 1 for emitting light, a modulator 2 for modulating an intensity of the emitted light with modulation waves having a predetermined frequency, a sensor 7 for converting the light intensity of the interference light into an electrical signal, and a synchronous demodulator 8 for subjecting the electrical signal to synchronous demodulation using the modulation waves as reference waves.

    摘要翻译: 提供了一种用于测量待测物体T与透明物体4之间的间隔的装置。透明物体4被设置为面对待测物体T的表面,发射光以穿过透明物体4撞击到 要测量的对象T,并且基于在待测物体T的表面和透明物体4之间的相对部分中发生的干涉光的强度来计算间距。该装置包括用于发射光的光源1 用于通过具有预定频率的调制波来调制发射光的强度的调制器2,用于将干扰光的光强度转换为电信号的传感器7以及用于对电信号进行同步解调的同步解调器8 使用调制波作为参考波。

    Recording apparatus with uniform drying unit
    15.
    发明授权
    Recording apparatus with uniform drying unit 有权
    具有均匀干燥装置的记录装置

    公开(公告)号:US08534823B2

    公开(公告)日:2013-09-17

    申请号:US12868840

    申请日:2010-08-26

    IPC分类号: B41J2/01

    CPC分类号: B41J11/002 B41J15/16

    摘要: A recording apparatus includes a transport unit that intermittently transports an elongated recording medium from an upstream side to a downstream side as the lengthwise direction of the recording medium moves along a transport path. A recording unit adheres a recording material to the recording medium when the recording medium is stopped in a midstream position of the transport path. A drying unit downstream from the recording unit heats and dries the recording material. A contact member has a contact surface continuous contact with the surface of the recording medium opposite the surface thereof to which the recording material is adhered, from the time when the recording medium enters into the drying unit to the time when the recording medium is discharged from the drying unit. The contact member forms the transport path with the contact surface having at least one bent section in the drying unit.

    摘要翻译: 记录装置包括:传送单元,其沿着记录介质的长度方向沿着传送路径移动,将细长的记录介质从上游侧向下游传送。 当记录介质在传送路径的中间位置停止时,记录单元将记录材料粘附到记录介质。 记录单元下游的干燥单元加热并干燥记录材料。 接触构件从记录介质进入干燥单元的时间到记录介质从其中排放的时间具有与记录介质的表面相反的与记录材料粘附的表面的接触表面的接触表面 干燥单元。 接触构件形成传送路径,其中接触表面在干燥单元中具有至少一个弯曲部分。

    Vehicular transmission
    16.
    发明授权
    Vehicular transmission 有权
    车辆传动

    公开(公告)号:US08287425B2

    公开(公告)日:2012-10-16

    申请号:US11600230

    申请日:2006-11-16

    IPC分类号: B60W10/08

    摘要: A vehicular transmission includes a gear-change mechanism section that shifts power from a driving source and outputs the power to an output shaft; and a hydraulic system that supplies hydraulic pressure from an oil pump to the gear-change mechanism section via a check valve. The check valve includes a cylindrical valve case in which a passage is formed, a valve stored within the valve case so as to be freely movable in an axial direction of the valve case, a valve seat that is formed at one end portion of the passage in the valve case and that closes the passage when the valve sits thereon, a spring for urging the valve so as to sit on the valve seat, and a spring seat fixed on an axially opposite side of the valve seat in the valve case to support the spring.

    摘要翻译: 车辆变速器包括:变速机构部分,其从动力源移动动力并将动力输出到输出轴; 以及液压系统,其通过止回阀将油压从油泵供给到变速机构部。 止回阀包括:其中形成有通道的圆​​柱形阀壳体;存储在阀壳体内的阀,以便能够在阀壳体的轴向方向上自由移动;阀座,其形成在通道的一端部 在阀壳中并且当阀安置在其上时关闭通道,用于推动阀以便坐在阀座上的弹簧和固定在阀壳中的阀座的轴向相对侧上的弹簧座以支撑 春天。

    Recording and reproducing apparatus and recording medium
    17.
    发明授权
    Recording and reproducing apparatus and recording medium 失效
    记录和再现设备和记录介质

    公开(公告)号:US08081559B2

    公开(公告)日:2011-12-20

    申请号:US11960439

    申请日:2007-12-19

    IPC分类号: G11B7/00

    CPC分类号: G11B5/584 G11B5/59677

    摘要: The present invention provides a recording and reproducing apparatus that can perform high-precision tracking servo control by removing noise from detected servo signals. The recording and reproducing apparatus performs tracking servo control while reading servo signals 10 that are formed on a surface 9 of a recording medium 2 so as to produce optical contrast, the apparatus including a modulated irradiator 20 for irradiating the servo signals 10 with a light beam, the intensity of the light beam being modulated by a modulating wave that is frequency-modulated; a photoelectric converter 30 for converting reflected light from the servo signals 10 into electric signals; and a synchronous demodulator 15 for subjecting the electrical signal to synchronous demodulation using the modulating wave as a reference wave.

    摘要翻译: 本发明提供了一种通过从检测到的伺服信号中去除噪声来执行高精度跟踪伺服控制的记录和再现装置。 记录和重放装置执行跟踪伺服控制,同时读取形成在记录介质2的表面9上的伺服信号10以便产生光学对比度,该装置包括调制辐射器20,用于用光束照射伺服信号10 光束的强度由被调制的调制波调制; 用于将来自伺服信号10的反射光转换为电信号的光电转换器30; 以及用于使用调制波作为参考波对电信号进行同步解调的同步解调器15。

    Magnetic recording medium and method for manufacturing the same
    18.
    发明申请
    Magnetic recording medium and method for manufacturing the same 失效
    磁记录介质及其制造方法

    公开(公告)号:US20080070066A1

    公开(公告)日:2008-03-20

    申请号:US11898757

    申请日:2007-09-14

    IPC分类号: G11B5/842 B05D5/12

    CPC分类号: G11B5/842

    摘要: A method for manufacturing a magnetic recording medium of the present invention includes a magnetic layer forming step in which a drying process is performed. The drying process includes: a pre-heating stage in which a magnetic coating film is heated until the surface temperature of the magnetic coating film stops rising and reaches a substantially constant temperature; a constant rate drying stage that is performed after the pre-heating stage in which the surface temperature of the magnetic coating film is held substantially constant; and a falling rate drying stage that is performed after the constant rate drying stage in which the surface temperature of the magnetic coating film is increased to be higher than the surface temperature during the constant rate drying stage to harden the magnetic coating film. The constant rate drying period in which the constant rate drying stage is performed is 0.2 seconds or more. The first solvent is made of one solvent or two or more solvents having different boiling points, and the difference (Tb−Ts) between the boiling point Tb of the solvent having the lowest boiling point among the solvents contained in the first solvent and the surface temperature Ts of the magnetic coating film during the constant rate drying period is 1 to 50° C.

    摘要翻译: 本发明的磁记录介质的制造方法包括进行干燥处理的磁性层形成工序。 干燥过程包括:预热阶段,其中加热磁性涂膜直到磁性涂膜的表面温度停止上升并达到基本恒定的温度; 在预热阶段之后进行恒定速率干燥阶段,其中磁性涂膜的表面温度保持在大致恒定的范围; 以及在恒速干燥阶段之后,在恒速干燥阶段使磁性涂膜的表面温度升高到高于表面温度的固定速率干燥阶段之后进行硬化处理的落下率干燥阶段。 进行恒定速率干燥阶段的恒定速率干燥时间为0.2秒以上。 第一溶剂由一种溶剂或两种或更多种沸点不同的溶剂制成,沸点T < 在恒定速率干燥期间,第一溶剂中所含溶剂中具有最低沸点的溶剂的b b和磁性涂膜的表面温度T S 1 / S 2为1〜50℃ C。

    Magnetic recording medium and method for manufacturing the same
    20.
    发明授权
    Magnetic recording medium and method for manufacturing the same 失效
    磁记录介质及其制造方法

    公开(公告)号:US08613977B2

    公开(公告)日:2013-12-24

    申请号:US11898757

    申请日:2007-09-14

    IPC分类号: B05D5/12

    CPC分类号: G11B5/842

    摘要: A method for manufacturing a magnetic recording medium of the present invention includes a magnetic layer forming step in which a drying process is performed. The drying process includes: a pre-heating stage in which a magnetic coating film is heated until the surface temperature of the magnetic coating film stops rising and reaches a substantially constant temperature; a constant rate drying stage that is performed after the pre-heating stage in which the surface temperature of the magnetic coating film is held substantially constant; and a falling rate drying stage that is performed after the constant rate drying stage in which the surface temperature of the magnetic coating film is increased to be higher than the surface temperature during the constant rate drying stage to harden the magnetic coating film. The constant rate drying period in which the constant rate drying stage is performed is 0.2 seconds or more. The first solvent is made of one solvent or two or more solvents having different boiling points, and the difference (Tb−Ts) between the boiling point Tb of the solvent having the lowest boiling point among the solvents contained in the first solvent and the surface temperature Ts of the magnetic coating film during the constant rate drying period is 1 to 50° C.

    摘要翻译: 本发明的磁记录介质的制造方法包括进行干燥处理的磁性层形成工序。 干燥过程包括:预热阶段,其中加热磁性涂膜直到磁性涂膜的表面温度停止上升并达到基本恒定的温度; 在预热阶段之后进行恒定速率干燥阶段,其中磁性涂膜的表面温度保持在大致恒定的范围; 以及在恒速干燥阶段之后,在恒速干燥阶段使磁性涂膜的表面温度升高到高于表面温度的固定速率干燥阶段之后进行硬化处理的落下率干燥阶段。 进行恒定速率干燥阶段的恒定速率干燥时间为0.2秒以上。 第一溶剂由一种溶剂或两种或更多种具有不同沸点的溶剂制成,并且在第一溶剂中包含的溶剂中具有最低沸点的溶剂的沸点Tb与表面之间的差(Tb-Ts) 恒速干燥期间的磁性涂膜的温度Ts为1〜50℃。