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    Optical disk drive recording/reproduction apparatus and method for producing modified address data
    32.
    发明授权
    Optical disk drive recording/reproduction apparatus and method for producing modified address data 有权
    光盘驱动器记录/再现装置和用于产生修改的地址数据的方法

    公开(公告)号：US06307821B1

    公开(公告)日：2001-10-23

    申请号：US09556797

    申请日：2000-04-25

    申请人： Hiroyuki Oohata ,  Kazuhiko Nakane ,  Kenji Gotoh ,  Yoshinobu Ishida

    发明人： Hiroyuki Oohata ,  Kazuhiko Nakane ,  Kenji Gotoh ,  Yoshinobu Ishida

    IPC分类号： G11B700

    CPC分类号： G11B27/3027 ,  G11B7/00745 ,  G11B20/1217 ,  G11B27/105 ,  G11B27/19 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1292 ,  G11B2220/2537

    摘要： In an optical disk drive apparatus for recording data on and reproducing data from an optical disk using both of data recording tracks formed of grooves and lands, is divided into an integer number of sectors, and the address data area of each sector is shifted in the radial direction. When a first sector is scanned, a data from the address data area of the first sector is read as a first direct address data, and a data from the address data area of an adjacent sector is read as a second direct address data. A first modified address data of the first sector is produced by modifying the second direct address data with an inter-track address difference, and a correct address value of the first sector is produced using the first direct address data and the first modified address data.

    摘要翻译： 在使用由凹槽和平台形成的数据记录轨道的数据记录数据和从光盘再现数据的光盘驱动装置中，被划分成整数个扇区，并且每个扇区的地址数据区在 径向。 当扫描第一扇区时，将来自第一扇区的地址数据区的数据作为第一直接地址数据读取，并将来自相邻扇区的地址数据区的数据作为第二直接地址数据读取。 第一扇区的第一修改地址数据是通过用第一直接地址数据和第一修改地址数据修改第二直接地址数据产生的，并且产生第一扇区的正确地址值。

    Laminated optical disc and turntable for the laminated optical disc
    33.
    发明授权
    Laminated optical disc and turntable for the laminated optical disc 有权
    层压光盘的层叠光盘和转盘

    公开(公告)号：US06212159B1

    公开(公告)日：2001-04-03

    申请号：US09517074

    申请日：2000-03-01

    申请人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

    发明人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

    IPC分类号： G11B724

    CPC分类号： G11B17/0282 ,  G11B7/0037 ,  G11B23/0035

    摘要： A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on said disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

    摘要翻译： 转台是安装在主轴电动机的轴（4）上的工作台，并且转台在其上支撑层压盘，并驱动盘旋转。 层压盘包括下盘和堆叠在下盘上的上盘，并且支撑在盘支撑表面上。 当盘被装载在转盘上时，配合构件装配在层压盘的中心孔中，用于使层压盘相对于轴定心。 当层压盘被支撑在所述盘支撑表面上时，配合构件适合于下盘的中心孔。 转台可以包括锥形构件，其将层叠的盘引导到盘支撑表面。 层压盘包括每个具有限定中心孔的边缘的下盘和上盘。 沿着中心孔的圆周切割边缘的角。 上下盘被放置在一起，使得切割角直接面对彼此。

    Methods of efficiently recording and audio signal in semiconductor memory
    35.
    发明授权
    Methods of efficiently recording and audio signal in semiconductor memory 失效
    半导体存储器中有效记录和音频信号的方法

    公开(公告)号：US6112171A

    公开(公告)日：2000-08-29

    申请号：US037623

    申请日：1998-03-10

    申请人： Kazuhiro Sugiyama ,  Yukari Ono ,  Yoshinobu Ishida

    发明人： Kazuhiro Sugiyama ,  Yukari Ono ,  Yoshinobu Ishida

    IPC分类号： G11C7/16 ,  G10L19/02

    CPC分类号： G11C7/16 ,  G11C2207/16

    摘要： An audio signal is recorded in a semiconductor memory in a plurality of hierarchical levels, with the lowest level being adequate for reproduction with a certain reduced degree of fidelity. Successively higher hierarchial levels provide successively greater fidelity when reproduced. When the memory has been determined to have reached maximum capacity, recording continues by overwriting the highest hierarchical level of data currently stored in the memory with lower hierarchical levels of new data. A code is recorded in the memory, indicating the number of hierarchical levels recorded therein, for subsequent reproduction. The audio signal can furthermore be recorded in variable-length frames and reproduced at high speed by reading every N-th frame, N being a positive integer, or by reading only frames having at least a certain minimum length.

    摘要翻译： 音频信号被记录在多个层级的半导体存储器中，其中最低的电平足以以一定的降低的保真度再现。 当再现时，连续更高的层次级别提供连续更高的保真度。 当存储器已经被确定为已经达到最大容量时，通过用新数据的较低层次级别覆盖当前存储在存储器中的数据的最高层级来继续记录。 代码被记录在存储器中，指示其中记录的分层级数，用于随后的再现。 此外，音频信号可以以可变长度的帧记录，并且通过读取每N个帧，N是正整数，或通过仅读取具有至少一定的最小长度的帧，以高速再现。

    Motor-driven vehicle control apparatus
    38.
    发明授权
    Motor-driven vehicle control apparatus 失效
    电动车辆控制装置

    公开(公告)号：US6003627A

    公开(公告)日：1999-12-21

    申请号：US905158

    申请日：1997-08-01

    申请人： Yoshinobu Ishida

    发明人： Yoshinobu Ishida

    IPC分类号： A61G5/04 ,  B62M6/45 ,  B62K11/00

    CPC分类号： A61G5/045 ,  A61G5/048 ,  A61G5/1054 ,  B60L15/20 ,  B60L2200/34 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

    摘要： Manual driving force applied by a wheelchair driver to a motor-driven wheelchair is sensed by a manual-driving-force sensing unit. When the manual driving force reaches a preset value, a control unit makes a motor generate a mechanical driving force supplementary to the manual driving force. The control unit subtracts the preset value from the manual driving force to determine an amount of change by which the current mechanical driving force should be changed, and adds the amount of change to the current mechanical driving force to develop a new mechanical driving force.

    摘要翻译： 由轮椅驾驶员施加到电动轮椅的手动驱动力由手动驱动力感测单元感测。 当手动驱动力达到预设值时，控制单元使马达产生补充手动驱动力的机械驱动力。 控制单元从手动驱动力中减去预设值，以确定当前机械驱动力应当改变的变化量，并且增加当前机械驱动力的变化量以开发新的机械驱动力。

    Laminated optical disc and turntable for the laminated optical disc
    39.
    发明授权
    Laminated optical disc and turntable for the laminated optical disc 失效
    层压光盘的层叠光盘和转盘

    公开(公告)号：US5889757A

    公开(公告)日：1999-03-30

    申请号：US863620

    申请日：1997-05-27

    申请人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

    发明人： Kazuo Mori ,  Kimihide Nakatsu ,  Kiyoshi Yanagiguchi ,  Tetsuro Nagami ,  Kenjiro Kime ,  Yoshinobu Ishida

    IPC分类号： G11B7/24 ,  G11B7/0037 ,  G11B17/028 ,  G11B23/00 ,  G11B3/70

    CPC分类号： G11B17/0282 ,  G11B23/0035 ,  G11B7/0037

    摘要： A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on the disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

    摘要翻译： 转台是安装在主轴电动机的轴（4）上的工作台，并且转台在其上支撑层压盘，并驱动盘旋转。 层压盘包括下盘和堆叠在下盘上的上盘，并且支撑在盘支撑表面上。 当盘被装载在转盘上时，配合构件装配在层压盘的中心孔中，用于使层压盘相对于轴定心。 当层压盘被支撑在盘支撑表面上时，配合构件适合下盘的中心孔。 转台可以包括锥形构件，其将层叠的盘引导到盘支撑表面。 层压盘包括每个具有限定中心孔的边缘的下盘和上盘。 沿着中心孔的圆周切割边缘的角。 上下盘被放置在一起，使得切割角直接面对彼此。

    Optical disk drive and optical disk having a continuous information track formed of alternating land and groove revolutions
    40.
    发明授权
    Optical disk drive and optical disk having a continuous information track formed of alternating land and groove revolutions 失效
    光盘驱动器和光盘具有由交替的平面和凹槽转数形成的连续信息轨迹

    公开(公告)号：US5859820A

    公开(公告)日：1999-01-12

    申请号：US816799

    申请日：1997-03-19

    申请人： Masato Nagasawa ,  Kouichi Komawaki ,  Yoshinobu Ishida ,  Tsuyoshi Katayama

    发明人： Masato Nagasawa ,  Kouichi Komawaki ,  Yoshinobu Ishida ,  Tsuyoshi Katayama

    IPC分类号： G11B7/09 ,  G11B7/007 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

    CPC分类号： G11B27/3027 ,  G11B27/19 ,  G11B7/0901 ,  G11B7/00718 ,  G11B7/00745

    摘要： In an optical disk device using an optical disk of a single land/groove spiral configuration, headers dividing each track revolution into sectors have one or more mirror surface parts, and the disposition and/or length of the mirror surface parts is different between sectors at a connecting point and sectors which are not at a connecting point. The device includes a circuit for detecting a connecting point based on the position and/or length of the mirror surface part. The device is further provided with a circuit for predicting the connecting point, thereby making up for any failure of detection by the detecting circuit. Such a predicting circuit may have a circuit for predicting the connecting point based on the phase of the disk motor when a connecting point is previously detected, or alternatively a circuit for predicting the connecting point by counting the number of PLL clocks, from a sector preceding the sector which is at a connecting point.

    摘要翻译： 在使用单个槽脊/凹槽螺旋构造的光盘的光盘装置中，将每个轨道旋转分成扇区的集管具有一个或多个镜面部分，并且镜面部分的配置和/或长度在扇区之间是不同的 连接点和不在连接点的扇区。 该装置包括用于基于镜面部分的位置和/或长度来检测连接点的电路。 该装置还设置有用于预测连接点的电路，从而补偿检测电路的任何检测故障。 这样的预测电路可以具有用于当先前检测到连接点时基于盘电动机的相位来预测连接点的电路，或者可选地，用于通过从前面的扇区计数PLL时钟的数量来预测连接点的电路 在连接点的扇区。