利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

131 条记录 (耗时 0.025 秒)

    Optical disk apparatus and address detection method
    61.
    发明申请
    Optical disk apparatus and address detection method 审中-公开
    光盘设备和地址检测方法

    公开(公告)号：US20050270911A1

    公开(公告)日：2005-12-08

    申请号：US11143999

    申请日：2005-06-03

    申请人： Yutaka Kashihara ,  Tadashi Kojima ,  Akihito Ogawa

    发明人： Yutaka Kashihara ,  Tadashi Kojima ,  Akihito Ogawa

    IPC分类号： G11B20/12 ,  G11B5/09 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24 ,  G11B20/18 ,  G11B27/24

    CPC分类号： G11B27/24 ,  G11B7/00718

    摘要： An optical disk apparatus comprises a Gray code detector for detecting a Gray code of a track address, a position detector for detecting, as an address uncertain position, a least significant bit of the detected Gray code of the track address and a bit of the detected Gray code of the track address and is higher by one than a bit position of a least significant code bit “1”, and a replacing unit which replaces a bit at the address uncertain position of the land address with a bit at a corresponding position of the groove address of the same track, and replaces a bit at the address uncertain position of the groove address with a bit at a corresponding position of the land address of the same track.

    摘要翻译： 光盘装置包括：格雷码检测器，用于检测轨道地址的格雷码;位置检测器，用于检测作为地址不确定位置的轨道地址的检测格雷码的最低有效位和检测到的比特位 轨道地址的格雷码，并且比最低有效码位“1”的比特位置高一位，以及替换单元，用于将地址地址的地址不确定位置的位替换为相应位置的位 同一轨道的槽地址，并用槽位地址的地址不确定位置的位替换相同轨道的地址地址对应位置的位。

    Synchronizing method and synchronizing apparatus
    62.
    发明申请
    Synchronizing method and synchronizing apparatus 审中-公开
    同步方法和同步装置

    公开(公告)号：US20050117873A1

    公开(公告)日：2005-06-02

    申请号：US10944916

    申请日：2004-09-21

    申请人： Tadashi Kojima ,  You Yoshioka

    发明人： Tadashi Kojima ,  You Yoshioka

    IPC分类号： G11B20/12 ,  G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B20/14 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  H04L7/08 ,  H04N5/76 ,  H04N5/781

    CPC分类号： G11B27/19 ,  G11B27/24

    摘要： A WDU is defined as a unit composed of a carrier of N cycles which carrier contains data depending on whether or not modulation is executed. A WPA is defined as a unit composed of a set of M of the WDUs. When the WPAs are consecutively inputted, each WDU and each WPA are detected. Further, an N period counter and an M period counter are used to obtain timing control signals for sampling the data. Then, WDU detecting means obtains a WDU synchronization detection signal PB-WDU indicative of a division point between the WDUs. WPA detecting means obtains a WPA synchronization detection signal PB-SYNC. The WDU synchronization detection signal is used to initialize the N period counter to a set value. The WPA synchronization detection signal is used to initialize the M period counter to a set value.

    摘要翻译： WDU被定义为由N个周期的载波组成的单元，载波包含取决于是否执行调制的数据。 WPA被定义为由一组M的WDU组成的单元。 当WPA连续输入时，检测到每个WDU和每个WPA。 此外，使用N周期计数器和M周期计数器来获得用于对数据进行采样的定时控制信号。 然后，WDU检测装置获得表示WDU之间的分割点的WDU同步检测信号PB-WDU。 WPA检测装置获得WPA同步检测信号PB-SYNC。 WDU同步检测信号用于将N周期计数器初始化为设定值。 WPA同步检测信号用于将M周期计数器初始化为设定值。

    Information storage medium, recording method used therefor and reproducing apparatus
    64.
    发明授权
    Information storage medium, recording method used therefor and reproducing apparatus 有权
    信息存储介质，用于其的记录方法和再现装置

    公开(公告)号：US06198874B1

    公开(公告)日：2001-03-06

    申请号：US09131746

    申请日：1998-08-10

    申请人： Toshihiko Kaneshige ,  Sigeru Todokoro ,  Tadashi Kojima

    发明人： Toshihiko Kaneshige ,  Sigeru Todokoro ,  Tadashi Kojima

    IPC分类号： H04N591

    CPC分类号： H04N9/8227 ,  G11B19/02 ,  G11B20/1251 ,  G11B27/034 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B2220/2562 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063

    摘要： Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B0, B1, B2, B3, etc., is recorded between a branch point X and a connection point Y. The preceding main story of a video program, made up of video, sound, text and the like, branches off at branch point X to the branch stories, and at connection point Y connects to the succeeding main story in the video program. The recorded state between the branch point X and the connection point Y is such that the branch stories are each divided into multiple cells and the cells of the respective branch stories are recorded time-division multiplexed.

    摘要翻译： 多个故事或场景上的数据被记录在记录介质上，以便减少在重放时由拾取器移动的物理距离并且抑制再现视频中的中断或干扰。 具有多个可选择的分支故事B0，B1，B2，B3等的多场景节目被记录在分支点X和连接点Y之间。视频节目的前一个主要故事，由视频 声音，文字等，在分支点X分支到分支故事，在连接点Y连接到视频节目中的后续主要故事。 分支点X和连接点Y之间的记录状态使得分支故事被分成多个单元，各分支故事的单元被时分多路复用。

    Information storage medium, recording method used therefor, and reproducing apparatus
    66.
    发明授权
    Information storage medium, recording method used therefor, and reproducing apparatus 有权
    信息存储介质，用于其的记录方法和再现装置

    公开(公告)号：US06175681B1

    公开(公告)日：2001-01-16

    申请号：US09131742

    申请日：1998-08-10

    申请人： Toshihiko Kaneshige ,  Sigeru Todokoro ,  Tadashi Kojima

    发明人： Toshihiko Kaneshige ,  Sigeru Todokoro ,  Tadashi Kojima

    IPC分类号： H04N591

    CPC分类号： H04N9/8227 ,  G11B19/02 ,  G11B20/1251 ,  G11B27/034 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B2220/2562 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063

    摘要： Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B0, B1, B2, B3, etc., is recorded between a branch point X and a connection point Y. The preceding main story of a video program, made up of video, sound, text and the like, branches off at branch point X to the branch stories, and at connection point Y connects to the succeeding main story in the video program. The recorded state between the branch point X and the connection point Y is such that the branch stories are each divided into multiple cells and the cells of the respective branch stories are recorded time-division multiplexed.

    摘要翻译： 多个故事或场景上的数据被记录在记录介质上，以便减少在重放时由拾取器移动的物理距离并且抑制再现视频中的中断或干扰。 具有多个可选择的分支故事B0，B1，B2，B3等的多场景节目被记录在分支点X和连接点Y之间。视频节目的前一个主要故事，由视频 声音，文字等，在分支点X分支到分支故事，在连接点Y连接到视频节目中的后续主要故事。 分支点X和连接点Y之间的记录状态使得分支故事被分成多个单元，各分支故事的单元被时分多路复用。

    Wave-shaping circuit
    68.
    发明授权
    Wave-shaping circuit 失效
    波形整形电路

    公开(公告)号：US4574206A

    公开(公告)日：1986-03-04

    申请号：US300604

    申请日：1981-09-09

    申请人： Shigeru Todokoro ,  Tadashi Kojima

    发明人： Shigeru Todokoro ,  Tadashi Kojima

    IPC分类号： H03K5/131 ,  G11B5/09 ,  G11B20/10 ,  H03K5/08 ,  H04L25/03 ,  H04L25/08 ,  H03K5/135

    CPC分类号： H03K5/084

    摘要： A wave-shaping circuit which comprises a comparator for comparing the level of a signal reproduced from a magnetic tape on which, for example, PCM signals are recorded with the level of a reference signal, and a D flip-flop circuit for holding an output signal from the comparator for a prescribed period. Where the reproduced signal has a higher level than the original level of the reference signal, then the reference signal is made to have a higher level than the original level by an output signal from the D flip-flop circuit, that is, an output signal from the comparator. Where the reproduced signal has a lower level than the original level of a reference signal, then the reference signal is made to have a lower level than the original level by the output signal from the comparator. As a result, strains occurring at the high density recording are not reproduced.

    摘要翻译： 一种波形整形电路，包括比较器，用于比较从其上记录有例如PCM信号的磁带再现的信号的电平与用于保持输出的D触发器电路 来自比较器的指定时间的信号。 在再现信号具有比参考信号的原始电平更高的电平的情况下，通过来自D触发器电路的输出信号，使参考信号具有比原始电平更高的电平，即，输出信号 从比较。 在再现信号具有比参考信号的原始电平低的电平的情况下，通过比较器的输出信号使参考信号具有比原始电平更低的电平。 结果，不再现在高密度记录下出现的应变。

    Error correcting system
    69.
    发明授权
    Error correcting system 失效
    纠错系统

    公开(公告)号：US4498175A

    公开(公告)日：1985-02-05

    申请号：US430002

    申请日：1982-09-30

    申请人： Masahide Nagumo ,  Jun Inagawa ,  Tadashi Kojima

    发明人： Masahide Nagumo ,  Jun Inagawa ,  Tadashi Kojima

    IPC分类号： G06F11/10 ,  G06F7/72 ,  G11B7/00 ,  G11B7/004 ,  G11B20/18 ,  H03M13/00 ,  H03M13/15

    CPC分类号： H03M13/151 ,  G06F7/724 ,  G06F7/726 ,  G11B20/1809

    摘要： An error correcting system uses an error location polynomial which is defined by double correction BCH codes each consisting of the elements of a Galois field GF(2.sup.m), and thereby generates error locations .sigma..sub.1 and .alpha..sup.2 and error patterns e.sub.1 and 2.sub.2. The system has a first data processing system for performing only addition and multiplication to generate the error locations .sigma..sub.1 and .alpha..sup.2, and a second data processing system for performing only addition and multiplication to generate the error patterns e.sub.1 and 2.sub.2. The first data processing system comprises a syndrome generator, a memory, an arithmetic logic unit, registers, latch circuits, registers, adder circuits and a zero detector. The second data processing system comprises a gate circuit, latch circuits, an arithmetic logic unit, and the registers of a memory.

    摘要翻译： 误差校正系统使用错误位置多项式，该多项式由由Galois域GF（2m）的元素组成的双校正BCH码定义，从而产生误差位置sigma1和α2以及误差模式e1和22。 具有用于仅执行加法和乘法以产生错误位置sigma1和alpha2的第一数据处理系统，以及仅执行相加和相乘以产生错误模式e1和22的第二数据处理系统。第一数据处理系统包括 校正子发生器，存储器，算术逻辑单元，寄存器，锁存电路，寄存器，加法器电路和零检测器。 第二数据处理系统包括门电路，锁存电路，算术逻辑单元和存储器的寄存器。