Noise reduced contactless parallel data transfer device and method
thereof
    31.
    发明授权
    Noise reduced contactless parallel data transfer device and method thereof 失效
    降噪非接触并行数据传输装置及其方法

    公开(公告)号:US5594680A

    公开(公告)日:1997-01-14

    申请号:US411463

    申请日:1995-03-28

    CPC分类号: G11C7/00

    摘要: A contactless parallel data transfer device which is miniature, highly densed, and highly reliable having a coil block consisting of a first coil group installed in a portable memory and a coil block consisting of a second coil group installed in a data server for transferring access data in parallel between the portable memory (memory card, etc.) and the data server by contactless coupling, wherein the opposite coils of the first and second coil blocks are held close and opposite to each other on a contactless basis, and a parallel pulse group which is transferred in parallel between the both coil blocks is divided at least into a first parallel pulse group consisting of the first number of bits and a second parallel pulse group consisting of the second number of bits, and the parallel transfer timings of the both parallel pulse groups are different from each other, and an induced signal to the neighboring coils of each opposite coil pair of the first and second coil blocks is negated in the opposite phase.

    摘要翻译: 一种非接触式并行数据传送装置,其具有由安装在便携式存储器中的第一线圈组和由安装在用于传送访问数据的数据服务器中的第二线圈组组成的线圈块的微型,高度致密和高可靠性的线圈块 通过非接触耦合在便携式存储器(存储卡等)和数据服务器之间并联连接,其中第一和第二线圈块的相对线圈彼此基于非接触地保持彼此相对并且彼此相对并联脉冲组 在两个线圈块之间并行传送的信号被划分为由第一位数组成的第一并行脉冲组和由第二位数组成的第二并行脉冲组,并且两个并行的并行传送定时 脉冲组彼此不同,并且对第一和第二线圈块的每个相对的线圈对的相邻线圈的感应信号被否定 在相反的阶段。

    Surface metrological apparatus
    32.
    发明授权
    Surface metrological apparatus 失效
    表面计量仪器

    公开(公告)号:US5001409A

    公开(公告)日:1991-03-19

    申请号:US368304

    申请日:1989-06-07

    摘要: In an apparatus for measuring texture and characterization of the surface of a sample on the basis of the drive signal of a servo control circuit by allowing a probe-tip (1) to approach the sample (2) and subjecting the probe-tip (1) to servo control so that a current, which is generated by moving the probe-tip (1) on the sample surface and which flows between the probe-tip (1) and the sample (2), becomes constant, the present invention discloses a surface metrological apparatus comprising a circuit (11, 12) for correcting the texture and characterization of the sample by use of a current error of the measured value of the current described above from the set current value.

    摘要翻译: PCT No.PCT / JP88 / 00967 Sec。 371日期1989年6月7日第 102(e)日期1989年6月7日PCT提交1988年9月22日PCT公布。 第WO89 / 03510号公报 日期:1989年4月20日。在根据伺服控制电路的驱动信号通过使探针尖端(1)接近样品(2)和/或 使探针尖端(1)进行伺服控制,使得通过在探针尖端(1)和样品(2)之间流动的样品表面上移动探针尖端(1)而产生的电流, 本发明公开了一种表面计量装置,其包括用于通过使用上述电流的测量值从设定电流值的电流误差来校正样品的纹理和表征的电路(11,12)。

    Optical information recording and reproducing apparatus with tracking
control by sampling
    33.
    发明授权
    Optical information recording and reproducing apparatus with tracking control by sampling 失效
    具有采样跟踪控制的光信息记录和再现设备

    公开(公告)号:US4847822A

    公开(公告)日:1989-07-11

    申请号:US71347

    申请日:1987-07-09

    IPC分类号: G11B7/09 G11B7/095

    CPC分类号: G11B7/0938 G11B7/0948

    摘要: An optical information recording and reproducing apparatus of a sampling servo system which effects the tracking by holding the differential output of the reproduced signals of tracking pits that are wobbled toward the right and left relative to the track of the optical disk. Reproduced signals of a plurality of pits arranged maintaining a distance on the track and wobbled toward the right or left in a servo signal region, are compared with each other to detect any abnormal condition in the tracking pits. When the abnormal condition is detected, the tracking signal that is sampled is not used, but instead the tracking signal sampled under the normal condition is continuously used to perform the tracking control.

    摘要翻译: 一种采样伺服系统的光学信息记录和再现装置,其通过保持相对于光盘的轨道向左右摆动的跟踪凹坑的再现信号的差分输出来实现跟踪。 将维持轨道上的距离并且在伺服信号区域中向左或向左摆动的多个坑的再现信号彼此进行比较,以检测跟踪凹坑中的任何异常状况。 当检测到异常情况时,不使用采样的跟踪信号,而是在正常条件下采样的跟踪信号被连续地用于执行跟踪控制。

    Random access storage apparatus with a movable recording medium
    34.
    发明授权
    Random access storage apparatus with a movable recording medium 失效
    具有可移动记录介质的随机存取存储装置

    公开(公告)号:US4199820A

    公开(公告)日:1980-04-22

    申请号:US970331

    申请日:1978-12-18

    摘要: In a storage apparatus wherein signals recorded on tracks assigned addresses in advance on a rotary recording medium such as an optical video disk are randomly searched at high speed, a random access storage apparatus is provided in which erroneous searches attributed to a transient phenomenon due to a jump for the search, a drop-out, etc. are prevented.The storage apparatus includes an error check circuit. In a random access operation, a read head is mechanically moved to the vicinity of a target address, whereupon an address signal of a track to which the head has been moved is read. Whether or not the address signal is normal is determined by the error check circuit. If the address signal is determined to be normal, it is stored in a register as a reference address. A light spot is deflected by the number of tracks which corresponds to the address difference between the reference address of the register and the target address.If the address signal is determined to be abnormal, the light spot is unconditionally deflected onto the adjacent track and an address signal is read out at the new position of deflection. Thereafter, the error decision and the subsequent operation described above are carried out.

    摘要翻译: 在其中记录在轨道上的信号记录在诸如光学视盘之类的旋转记录介质上的轨道上的信号被高速随机搜索的存储装置中,提供了随机存取存储装置,其中归因于由于 跳出搜索,退出等等。 存储装置包括错误检查电路。 在随机访问操作中,读头被机械地移动到目标地址附近,从而读取头移动到的轨道的地址信号。 地址信号是否正常由误差校验电路确定。 如果地址信号被确定为正常,则将其作为参考地址存储在寄存器中。 光斑被对应于寄存器的参考地址和目标地址之间的地址差的磁道数量偏转。 如果地址信号被确定为异常,则光点被无条件地偏转到相邻轨道上,并且在新的偏转位置处读出地址信号。 此后,执行上述的错误判定和后续操作。

    Light spot position control system and method by sampling servo
    35.
    发明授权
    Light spot position control system and method by sampling servo 失效
    光点位置控制系统和采样伺服方法

    公开(公告)号:US4785442A

    公开(公告)日:1988-11-15

    申请号:US072095

    申请日:1987-07-10

    CPC分类号: G11B7/09

    摘要: A light spot position control system of the invention uses an optical disc in which a servo area and a data area are alternately formed along a rotating direction of a rotary recording medium, wherein error signals obtained from the servo areas are sampled, the latest sample value is compared with at least one-preceding sample value, a check is made to see if the latest sample value is correct or incorrect, and when the latest sample value is decided to be incorrect, the preceding error signal held is directly used as a light spot position control signal without updating the current error signal holding value.

    摘要翻译: 本发明的光点位置控制系统使用其中伺服区域和数据区域沿着旋转记录介质的旋转方向交替形成的光盘,其中从伺服区域获得的误差信号被采样,最新采样值 与至少一个以前的采样值进行比较,进行检查以查看最新采样值是否正确或不正确,并且当最新采样值被确定为不正确时,所保持的前一个误差信号直接用作光 点位置控制信号,而不更新当前误差信号保持值。