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351 条记录 (耗时 0.074 秒)

    Optical disk, optical disk device, and method of reproducing information on optical disk
    81.
    发明授权
    Optical disk, optical disk device, and method of reproducing information on optical disk 有权
    光盘，光盘装置以及在光盘上再现信息的方法

    公开(公告)号：US06269069B1

    公开(公告)日：2001-07-31

    申请号：US09569385

    申请日：2000-05-11

    申请人： Takashi Ishida ,  Toyoji Gushima

    发明人： Takashi Ishida ,  Toyoji Gushima

    IPC分类号： G11B900

    CPC分类号： G11B20/1217 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/24082 ,  G11B20/1252 ,  G11B20/1426 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537

    摘要： The present invention is aimed at providing an optical disk, an optical disk device, and an optical disk reproduction method, for allowing for stable and efficient reading of address information. The optical disk includes a plurality of tracks each divided into a plurality of recording sectors. Each of the recording sectors includes a header region. The header region includes address information for identifying the position of the corresponding recording sector and address synchronous information for identifying the recording position of the address information for bit synchronization. The address information has been modulated using a run length limit code of a maximum inversion interval of Tmax bits (Tmax is a natural number), and the address synchronous information includes two patterns of which inversion interval is (Tmax+3) bits or more, so that the reproduced signal of the address synchronous information is distinguished from the reproduced signal of other information.

    摘要翻译： 本发明旨在提供一种用于允许地址信息的稳定和有效读取的光盘，光盘装置和光盘再现方法。 光盘包括分成多个记录扇区的多个磁迹。 每个记录扇区包括报头区域。 标题区域包括用于识别相应记录扇区的位置的地址信息和用于识别用于位同步的地址信息的记录位置的地址同步信息。 已经使用Tmax比特的最大反转间隔的游程长度限制码（Tmax是自然数）来调制地址信息，并且地址同步信息包括其反转间隔为（Tmax + 3）位或更多的两种模式， 使得地址同步信息的再现信号与其他信息的再现信号不同。

    Optical disk, optical disk device, and method of reproducing information on optical disk
    84.
    发明授权
    Optical disk, optical disk device, and method of reproducing information on optical disk 有权
    光盘，光盘装置以及在光盘上再现信息的方法

    公开(公告)号：US06791930B2

    公开(公告)日：2004-09-14

    申请号：US10348689

    申请日：2003-01-22

    申请人： Takashi Ishida ,  Toyoji Gushima

    发明人： Takashi Ishida ,  Toyoji Gushima

    IPC分类号： G11B700

    CPC分类号： G11B20/1217 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/24082 ,  G11B20/1252 ,  G11B20/1426 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537

    摘要： The present invention is aimed at providing an optical disk, an optical disk device, and an optical disk reproduction method, for allowing for stable and efficient reading of address information. The optical disk includes a plurality of tracks each divided into a plurality of recording sectors. Each of the recording sectors includes a header region. The header region includes address information for identifying the position of the corresponding recording sector and address synchronous information for identifying the recording position of the address information for bit synchronization. The address information has been modulated using a run length limit code of a maximum inversion interval of Tmax bits (Tmax is a natural number), and the address synchronous information includes two patterns of which inversion interval is (Tmax+3) bits or more, so that the reproduced signal of the address synchronous information is distinguished from the reproduced signal of other information.

    摘要翻译： 本发明旨在提供一种用于允许地址信息的稳定和有效读取的光盘，光盘装置和光盘再现方法。 光盘包括分成多个记录扇区的多个磁迹。 每个记录扇区包括报头区域。 标题区域包括用于识别相应记录扇区的位置的地址信息和用于识别用于位同步的地址信息的记录位置的地址同步信息。 已经使用Tmax比特的最大反转间隔的游程长度限制码（Tmax是自然数）来调制地址信息，并且地址同步信息包括其反转间隔为（Tmax + 3）位或更多的两种模式， 使得地址同步信息的再现信号与其他信息的再现信号不同。

    Optical information recording/reproducing device and method for recording, reproducing and erasing information on an optical information recording medium utilizing light beam radiation
    86.
    发明授权
    Optical information recording/reproducing device and method for recording, reproducing and erasing information on an optical information recording medium utilizing light beam radiation 失效
    用于利用光束辐射在光学信息记录介质上记录，再现和擦除信息的光学信息记录/再现装置和方法

    公开(公告)号：US6044051A

    公开(公告)日：2000-03-28

    申请号：US827748

    申请日：1997-04-09

    申请人： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

    发明人： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

    IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B20/10 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

    CPC分类号： G11B27/3027 ,  G11B20/10009 ,  G11B20/1252 ,  G11B27/19 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/013 ,  G11B2220/20

    摘要： There is provided an optical information recording/reproducing device for recording, reproducing, or erasing information on an optical information recording medium including information tracks formed on a disk substrate including alternating groove tracks and land tracks each including: a header region for recording identification data representing location information in pre-pits; and a data region for recording user data, the pre-pits being grouped into blocks, the blocks wobbling alternately toward an inner periphery or an outer periphery of the disk substrate along a radius direction from a center line of each information track by a distance which is substantially 1/2 of the information track pitch. The pre-pits are provided along the radius direction at a pitch twice as large as the track pitch. The device includes: an optical system for radiating a light beam as a converged beam spot on an information track; an optical detector including two light receiving portions divided in parallel to the track direction for receiving the light beam reflected from the recording medium; a signal generator for generating a differential signal and an addition signal of output signals respectively output from the light receiving portions; a header region detection circuit for determining whether the converged beam spot is tracing the header region or the data region using the differential signal; and at least one reading circuit for reading the identification data from the differential signal and for reading information recorded in the data region from the addition signal.

    摘要翻译： 提供了一种光学信息记录/再现装置，用于在包括形成在包括交替的凹槽轨道和脊迹道的盘基底上的信息轨迹的光信息记录介质上记录，再现或擦除信息，所述光盘信息记录介质包括：标题区，用于记录表示 预坑中的位置信息; 以及用于记录用户数据的数据区域，将预定凹坑分组成块，块沿着每个信息轨道的中心线沿半径方向交替地向盘基板的内周或外周摆动一距离 基本上为信号轨道间距的+ E，fra 1/2 + EE。 预制坑沿着半径方向以轨道间距的两倍大的间距设置。 该装置包括：用于在信息轨道上辐射作为会聚束斑的光束的光学系统; 光检测器，其包括与轨道方向平行分割的两个光接收部分，用于接收从记录介质反射的光束; 信号发生器，用于产生分别从光接收部分输出的差分信号和输出信号的相加信号; 标题区域检测电路，用于使用所述差分信号来确定所述会聚波束点是跟踪所述头部区域还是所述数据区域; 以及至少一个读取电路，用于从差分信号读取识别数据，并用于从加法信号读取记录在数据区中的信息。

    Optical data recording method
    87.
    发明授权
    Optical data recording method 有权
    光学数据记录方法

    公开(公告)号：US08023380B2

    公开(公告)日：2011-09-20

    申请号：US12339708

    申请日：2008-12-19

    申请人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    发明人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24085 ,  G11B7/00456 ,  G11B11/10506 ,  G11B11/1053

    摘要： The optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and emitting a pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc. In the optical data recording method, at least two of the plurality of recording marks comprises: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code.

    摘要翻译： 该光学数据记录方法包括以下步骤：调制要记录的数据，以产生多个记录调制码; 并向光盘发射脉冲状光束，使得在光盘上形成具有与多个记录调制码对应的长度的多个记录标记和空间。 在光学数据记录方法中，多个记录标记中的至少两个记录标记包括：设置在前面并形成记录标记的前沿的第一脉冲，设置在后端并形成尾部的最后脉冲 记录标记的边缘，以及设置在第一脉冲和最后脉冲之间并形成记录标记的中心的多脉冲串。 多脉冲串具有长于T的脉冲周期，其表示记录调制码的参考周期。

    OPTICAL DISC INCLUDING A LEARNING AREA HAVING FIRST AND SECOND REGIONS, AND METHODS FOR REPRODUCING AND RECORDING DATA ON THE OPTICAL DISC
    89.
    发明申请
    OPTICAL DISC INCLUDING A LEARNING AREA HAVING FIRST AND SECOND REGIONS, AND METHODS FOR REPRODUCING AND RECORDING DATA ON THE OPTICAL DISC 有权
    具有第一和第二区域的学习区的光盘，以及在光盘上重现和记录数据的方法

    公开(公告)号：US20090122690A1

    公开(公告)日：2009-05-14

    申请号：US12335106

    申请日：2008-12-15

    申请人： Atsushi Nakamura ,  Mamoru Shoji ,  Takashi Ishida

    发明人： Atsushi Nakamura ,  Mamoru Shoji ,  Takashi Ishida

    IPC分类号： G11B7/24 ,  G11B7/085

    CPC分类号： G11B7/00745 ,  G11B7/00454 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0956 ,  G11B7/126 ,  G11B7/1267 ,  G11B2007/0013

    摘要： When recording or reading an optical disc having plural data recording layers, which data recording layer the light spot is focused on is detected to improve playback signal quality and signals written to the layer on which the light spot is focused are read more reliably. A convergent lens converges the laser beam on the optical disc, and a focus controller controls the focal point of the laser beam on the data layer. A tracking controller positions and tracks the focal point of the laser beam converged by the convergent lens on a track of the optical disc. A photodetector detects the reflected laser beam from the disc. A convergence detector then detects the convergence state of the laser beam emitted to the plural data recording layers. Based on output from the convergence detector, the laser driver is controlled to separately set beam power appropriately for each of the plural data layers of the disc during playback.

    摘要翻译： 当记录或读取具有多个数据记录层的光盘时，检测到该光斑聚焦的哪个数据记录层以提高重放信号质量，并且更可靠地读取写入到其上聚焦光点的层的信号。 会聚透镜将激光束会聚在光盘上，并且聚焦控制器控制激光束在数据层上的焦点。 跟踪控制器将由会聚透镜会聚的激光束的焦点位置并跟踪在光盘的轨道上。 光电检测器检测来自盘的反射激光束。 然后，会聚检测器检测发射到多个数据记录层的激光束的会聚状态。 基于会聚检测器的输出，激光驱动器被控制为在回放期间对盘的多个数据层中的每一个分别设置光束功率。