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    Code modulating method and code modulating apparatus, demodulating method and demodulating apparatus, and information recording medium
    2.
    发明授权
    Code modulating method and code modulating apparatus, demodulating method and demodulating apparatus, and information recording medium 失效
    码调制方法和码调制装置，解调方法和解调装置以及信息记录介质

    公开(公告)号：US06861965B2

    公开(公告)日：2005-03-01

    申请号：US10736785

    申请日：2003-12-17

    申请人： Kinji Kayanuma ,  Toshiaki Iwanaga ,  Chosaku Noda

    发明人： Kinji Kayanuma ,  Toshiaki Iwanaga ,  Chosaku Noda

    IPC分类号： G11B20/14 ,  G11B27/30 ,  H03M7/14 ,  H03M7/00

    CPC分类号： G11B27/3027 ,  G11B20/1426 ,  G11B2020/1457 ,  G11B2220/2562

    摘要： In a code modulating method and a code modulating apparatus, a run length has an encoding rate of ⅔ which is equal to that of (1, 7) modulation, and indicates the number of “0” bits between adjacent ones of “1” bits in the channel bit train. A data bit train is converted into the channel bit train so that the run length has a minimum value 1 and a maximum value 10. Further, upon converting any data bit train, the channel bit train does not include a pattern “1010101010101” in which the run length 1 is continuously repeated six times or more. The channel bit train has a DSV (Digital Sum Value) control bit which selects the “0” bit or “1” bit in accordance with a DSV. The channel bit train obtained by using random data for the data bit train is NRZI converted into a signal. A frequency component of the signal is reduced from a maximum value of the frequency component by 20 dB or less as a power density at a frequency of {fraction (1/10,000)} or less of a channel clock frequency.

    摘要翻译： 在代码调制方法和代码调制装置中，游程长度具有与（1,7）调制相等的2/3的编码率，并且表示相邻的“1”调制之间的“0”比特数 “通道位列中的位。 数据比特串被转换为信道比特串，使得游程长度具有最小值1和最大值10.此外，在转换任何数据比特串时，信道比特串不包括模式“1010101010101”，其中 游程长度1连续重复6次以上。 信道位串具有根据DSV选择“0”位或“1”位的DSV（数字和值）控制位。 通过使用数据比特串的随机数据获得的信道比特序列被NRZI转换成信号。 信号的频率成分从频率分量的最大值减小20dB以下，作为频率为{分数（信道时钟频率的1 / 10,000以下）的功率密度。

    Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium
    4.
    发明授权
    Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium 失效
    信号评估方法，信息记录/再现装置，信息再现装置和信息记录介质

    公开(公告)号：US07428203B2

    公开(公告)日：2008-09-23

    申请号：US10763247

    申请日：2004-01-26

    申请人： Yutaka Kashihara ,  Yuji Nagai ,  Shuichi Ookubo ,  Masatsugu Ogawa ,  Masaki Nakano ,  Toshiaki Iwanaga

    发明人： Yutaka Kashihara ,  Yuji Nagai ,  Shuichi Ookubo ,  Masatsugu Ogawa ,  Masaki Nakano ,  Toshiaki Iwanaga

    IPC分类号： G11B20/18

    CPC分类号： G11B20/10101 ,  G11B7/0062 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/1816

    摘要： Reproduction signals include patterns for which recognition errors are likely. With respect to such patterns, probable error patterns are prepared. Tables showing correct patterns and error patterns are prepared, and evaluation values accurately representing signal quality are calculated. In an apparatus using a PRML method, discrimination data and a plurality of predetermined bit sequence pairs are examined to detect matching. A bit sequence and corresponding two ideal responses are calculated. Euclidean distances between the two ideal responses and equalization signals are obtained, and the difference between the Euclidean distances is further obtained. A quality evaluation value of a reproduction signal is calculated based on a mean value, a standard deviation, an appearance probability of the predetermined bit sequence, and a Hamming distance between the predetermined bit sequence pairs.

    摘要翻译： 繁殖信号包括识别错误可能的模式。 关于这种模式，准备可能的错误模式。 准备显示正确图案和错误图案的表格，并计算准确表示信号质量的评价值。 在使用PRML方法的装置中，检查鉴别数据和多个预定位序列对以检测匹配。 计算一个位序列和相应的两个理想响应。 获得两个理想响应和均衡信号之间的欧氏距离，并进一步获得欧氏距离之间的差异。 基于平均值，标准偏差，预定比特序列的出现概率以及预定比特序列对之间的汉明距离来计算再现信号的质量评估值。

    Optical disc and recording/producing method therefor
    5.
    发明授权
    Optical disc and recording/producing method therefor 失效
    光盘及其记录/制作方法

    公开(公告)号：US07414955B2

    公开(公告)日：2008-08-19

    申请号：US11011023

    申请日：2004-11-29

    申请人： Toshiaki Iwanaga

    发明人： Toshiaki Iwanaga

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24038 ,  G11B7/00718 ,  G11B7/00745

    摘要： An optical disc including one or more than one recording layers has land areas (131) and groove areas (132) as recording tracks, wherein a data recording area of at least one of the recording layers is divided into a plurality of zones in a radial direction. In each of the divided zones, one or more than one prepits (133) with predetermined data are disposed in a track so that each header area is disposed at ever other boundary among the boundaries between the land areas and the groove areas. Each header area is shifted in the circumferential direction from other header areas apart from the each header area by two boundaries without overlapping in the radial direction.

    摘要翻译： 包括一个或多于一个记录层的光盘具有作为记录磁道的岸台区域（131）和凹槽区域（132），其中至少一个记录层的数据记录区域被分成多个区域 方向。 在每个分割区域中，具有预定数据的一个或多个预凹坑（133）被布置在轨道中，使得每个标题区域被布置在陆地区域和凹槽区域之间的边界之间的另一边界处。 每个标题区域在距离每个标题区域的其他标题区域沿圆周方向偏移两个边界，而在径向方向上不重叠。

    Stopper for use in an industrial robot
    7.
    发明授权
    Stopper for use in an industrial robot 失效
    用于工业机器人的止动器

    公开(公告)号：US6065364A

    公开(公告)日：2000-05-23

    申请号：US043387

    申请日：1998-03-17

    申请人： Tomoyuki Shiraki ,  Toshiaki Iwanaga ,  Shigeo Matsushita ,  Kazuhiro Haniya

    发明人： Tomoyuki Shiraki ,  Toshiaki Iwanaga ,  Shigeo Matsushita ,  Kazuhiro Haniya

    IPC分类号： B25J9/10 ,  G05G11/00

    CPC分类号： B25J9/101 ,  Y10T74/20305 ,  Y10T74/2063

    摘要： A stopper includes a frame (51) fixed to a mount base (1) of an industrial robot, a retaining shaft (52) which is fixed to the frame (51) in an upright position in relation to the plane of rotation of the turning base (2), a rod-shaped engagement lever (53) which is supported so as to be able to turn around the retaining shaft (52), a spring (57) for returning the engagement lever (53) to a position where it faces the center of the turning base (2), stoppers (59A, 59B) provided on both inner surfaces of the frame (51) which face the engagement lever (53), and an engagement dog (7) which is fixed to the turning base (2) and is capable of engaging the engagement lever (53). It is possible to provide a stopper for use with an industrial robot which permits setting of the operating angle of the turning base to a value of 360.degree. or more and which ensures a wide range of operation.

    摘要翻译： PCT No.PCT / JP96 / 02647 Sec。 371日期：1998年3月17日 102（e）1998年3月17日PCT PCT 1996年9月17日PCT公布。 公开号WO97 / 10933 日期1997年3月27日一种止动器包括：固定到工业机器人的安装基座（1）的框架（51）;固定轴（52），其相对于平面固定在框架（51）上; 所述转动基座（2）的转动，被支撑为能够绕所述保持轴（52）转动的杆状接合杆（53），用于使所述接合杆（53）返回的弹簧（57） 到与转动基座（2）的中心相对的位置，设置在框架（51）的与接合杆（53）相对的两个内表面上的止动件（59A，59B）和接合爪（7） 固定到转动基座（2）上并且能够接合接合杆（53）。 可以提供一种用于工业机器人的止动件，其允许将转动底座的操作角度设定为360度或更大的值，并且确保较宽的操作范围。

    Optical disc and recording/producing method therefor
    9.
    发明申请
    Optical disc and recording/producing method therefor 失效
    光盘及其记录/制作方法

    公开(公告)号：US20050099935A1

    公开(公告)日：2005-05-12

    申请号：US11011023

    申请日：2004-11-29

    申请人： Toshiaki Iwanaga

    发明人： Toshiaki Iwanaga

    IPC分类号： G11B7/004 ,  G11B7/007 ,  G11B7/24 ,  G11B20/10 ,  G11B20/12

    CPC分类号： G11B7/24038 ,  G11B7/00718 ,  G11B7/00745

    摘要： An optical disc including one or more than one recording layers has land areas (131) and groove areas (132) as recording tracks, wherein a data recording area of at least one of the recording layers is divided into a plurality of zones in a radial direction. In each of the divided zones, one or more than one prepits (133) with predetermined data are disposed in a track so that each header area is disposed at ever other boundary among the boundaries between the land areas and the groove areas. Each header area is shifted in the circumferential direction from other header areas apart from the each header area by two boundaries without overlapping in the radial direction.

    摘要翻译： 包括一个或多于一个记录层的光盘具有作为记录磁道的岸台区域（131）和凹槽区域（132），其中至少一个记录层的数据记录区被分成径向的多个区域 方向。 在每个分割区域中，具有预定数据的一个或多个预凹坑（133）被布置在轨道中，使得每个标题区域被布置在陆地区域和凹槽区域之间的边界之间的另一边界处。 每个标题区域在距离每个标题区域的其他标题区域沿圆周方向偏移两个边界，而在径向方向上不重叠。

    Gain control of a reproduced signal amplifier for precise monitoring of a reproduced signal during recording
    10.
    发明授权
    Gain control of a reproduced signal amplifier for precise monitoring of a reproduced signal during recording 失效
    对再现信号放大器进行增益控制，以便在记录期间精确地监视再现信号

    公开(公告)号：US6108293A

    公开(公告)日：2000-08-22

    申请号：US156664

    申请日：1998-09-18

    申请人： Masaki Nakano ,  Toshiaki Iwanaga

    发明人： Masaki Nakano ,  Toshiaki Iwanaga

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/125 ,  G11B7/13 ,  G11B20/10 ,  G11B20/18

    CPC分类号： G11B7/005 ,  G11B7/0045 ,  G11B20/10203

    摘要： An optical disk recording device for conducting reading and recording of data through irradiation of laser beam on an optical disk medium comprises a photo detection circuit for receiving input of reflected light from an optical disk medium to detect a reproduced signal, a pre-amplifier for amplifying a reproduced signal from the photo detection circuit and outputting the amplified reproduced signal for monitoring, and a level shift circuit for shifting a level of a reproduced signal from the photo detection circuit increased with an increase of the amount of light in data recording operation to a preset value and outputting the level-shifted reproduced signal to the pre-amplifier.

    摘要翻译： 一种用于通过在光盘介质上照射激光束进行数据读取和记录的光盘记录装置包括：光检测电路，用于接收来自光盘介质的反射光的输入以检测再现信号;前置放大器，用于放大 来自光检测电路的再现信号并输出​​用于监视的放大的再现信号，以及用于使来自光检测电路的再现信号的电平移位的电平移位电路随着数据记录操作中的光量的增加而增加到 预设值，并将电平移位的再现信号输出到前置放大器。