利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

60 条记录 (耗时 0.053 秒)

    Apparatus for recording and reproducing digital data and method for the same
    31.
    发明授权
    Apparatus for recording and reproducing digital data and method for the same 有权

    公开(公告)号：US06362928B1

    公开(公告)日：2002-03-26

    申请号：US09881453

    申请日：2001-06-14

    申请人： Shinji Hamai ,  Fumikazu Imai ,  Chiyoko Matsumi ,  Akira Iketani

    发明人： Shinji Hamai ,  Fumikazu Imai ,  Chiyoko Matsumi ,  Akira Iketani

    IPC分类号： G11B509

    摘要： An apparatus for recording and reproducing digital data according to the present invention, includes: a group converter; a controller; a recording converter; a recording unit; a reproducing unit; a reproducing converter; and a group reverse converter, wherein the group converter includes: a block management data generator for receiving the management data from the controller and generating block management data with respect to the corresponding blocked data, the block management data having a variable-length and containing information concerning each blocked data; a group management data generator for receiving the management data and generating group management data containing information concerning the entire grouped data; and a grouped data generator for receiving the blocked data, the block management data, and the group management data, and generating grouped data by arranging the blocked data, the block management data, and the group management data in a predetermined order.

    Digital signal recording and reproducing apparatus
    32.
    发明授权
    Digital signal recording and reproducing apparatus 失效
    数字信号记录和再现装置

    公开(公告)号：US6115537A

    公开(公告)日：2000-09-05

    申请号：US389954

    申请日：1995-02-17

    申请人： Masazumi Yamada ,  Yukio Kurano ,  Kenji Kunitake ,  Yuzo Murakami ,  Akira Iketani ,  Chiyoko Matsumi ,  Yasuo Hamamoto ,  Akihiro Takeuchi

    发明人： Masazumi Yamada ,  Yukio Kurano ,  Kenji Kunitake ,  Yuzo Murakami ,  Akira Iketani ,  Chiyoko Matsumi ,  Yasuo Hamamoto ,  Akihiro Takeuchi

    IPC分类号： H04N5/00 ,  H04N5/7826 ,  H04N5/783 ,  H04N7/52 ,  H04N9/804 ,  H04N9/82 ,  H04N5/782 ,  H04N5/917

    CPC分类号： H04N21/4147 ,  H04N21/236 ,  H04N21/434 ,  H04N9/8042 ,  H04N5/78263 ,  H04N5/783 ,  H04N9/8227 ,  H04N9/8233

    摘要： In a digital signal recording and reproducing apparatus, digital input data is transmitted in a transmission packet format and is recorded in a recording packet format. In a recording stage, an auxiliary signal generator (3) generates an auxiliary signal for special reproduction in the transmission packet format, and the digital and auxiliary signals are converted into respective recording packets by means of recording signal converters (5, 6). Recording means (9, 10) performs a specific recording process on the recording packets and an identification signal for identifying between the recording packets of the digital signal and of the auxiliary signal. While in a reproducing stage, reproduction signal processing means (14, 15) performs a specific reproduction process on the reproduction signal to thereby reconstruct the recording packets and the identification signal. A packet selector (16) detects the reconstructed identification signal to determine whether the recording packet is of the digital signal or of the auxiliary signal, and then the digital signal or auxiliary signal is reconstructed by a signal reconstructor (17) in the transmission format using the selected recording packet, whereby a high quality image output conforming to the transmission format used in the normal reproductions mode is also obtained during the special reproduction modes.

    摘要翻译： 在数字信号记录和再现装置中，数字输入数据以传输分组格式发送，以记录分组格式记录。 在记录阶段，辅助信号发生器（3）以发送分组格式生成用于特殊再现的辅助信号，并通过记录信号转换器（5,6）将数字和辅助信号转换成各自的记录分组。 记录装置（9,10）对记录包执行特定记录处理，以及用于识别数字信号和辅助信号的记录包之间的识别信号。 在再现阶段，再现信号处理装置（14,15）对再现信号执行特定的再现处理，从而重建记录包和识别信号。 分组选择器（16）检测重建的识别信号以确定记录分组是数字信号还是辅助信号，然后数字信号或辅助信号由传输格式的信号重构器（17）重建，使用 所选择的记录包，由此在特殊再现模式期间也获得符合正常再现模式中使用的传输格式的高质量图像输出。

    Digital data recording and reproducing apparatus with reliable error correcting coding and decoding
    33.
    发明授权
    Digital data recording and reproducing apparatus with reliable error correcting coding and decoding 失效
    具有可靠的纠错编码和解码的数字数据记录和再现装置

    公开(公告)号：US5856890A

    公开(公告)日：1999-01-05

    申请号：US790848

    申请日：1997-02-03

    申请人： Shinji Hamai ,  Chiyoko Matsumi ,  Akira Iketani

    发明人： Shinji Hamai ,  Chiyoko Matsumi ,  Akira Iketani

    IPC分类号： G11B20/10 ,  G11B20/18 ,  G11B5/09 ,  G11C29/00 ,  H03M13/00

    CPC分类号： G11B20/10009 ,  G11B20/1809

    摘要： Input digital data are formatted into a data block composed of a predetermined amount of data, subjected to error correction encoding process, and recorded on a predetermined number of continuous tracks of a recording medium. In the error correction encoding process, the data block is subjected to an inter-track error correction encoding, an outer error correction encoding and an inner error correction encoding. In the inter-track error correction encoding, each information element to be coded is produced by symbols collected from the data which are to be recorded on different tracks of the continuous tracks. The error correction encoded data in the data block are distributed to a first predetermined recording area of each track of the continuous tracks, and parity code words produced by the inter-track error correction encoding are distributed to a second predetermined recording area of each track of the continuous tracks.

    摘要翻译： 输入数字数据被格式化为由经过纠错编码处理的预定数量的数据组成的数据块，并记录在预定数量的记录介质的连续轨道上。 在纠错编码处理中，对数据块进行轨道间纠错编码，外部纠错编码和内部纠错编码。 在轨道间纠错编码中，要从要记录在连续轨道的不同轨道上的数据收集的符号产生要被编码的每个信息元素。 数据块中的纠错编码数据被分配到连续轨道的每个轨道的第一预定记录区域，并且由轨道间纠错编码产生的奇偶校验码字被分配到每个轨道的第二预定记录区域 连续轨道。

    Digital data recording and reproducing apparatus
    35.
    发明授权
    Digital data recording and reproducing apparatus 失效
    数字数据记录和再现装置

    公开(公告)号：US5638227A

    公开(公告)日：1997-06-10

    申请号：US356907

    申请日：1994-12-15

    申请人： Shinji Hamai ,  Chiyoko Matsumi ,  Akira Iketani

    发明人： Shinji Hamai ,  Chiyoko Matsumi ,  Akira Iketani

    IPC分类号： G11B20/10 ,  G11B20/18 ,  G11B5/09

    CPC分类号： G11B20/10009 ,  G11B20/1809

    摘要： Input digital data are formatted into a data block composed of a predetermined amount of data, subjected to error correction encoding process, and recorded on a predetermined number of continuous tracks of a recording medium. In the error correction encoding process, the data block is subjected to an inter-track error correction encoding, an outer error correction encoding and an inner error correction encoding. In the inter-track error correction encoding, each information element to be coded is produced by symbols collected from the data which are to be recorded on different tracks of the continuous tracks. The error correction encoded data in the data block are distributed to a first predetermined recording area of each track of the continuous tracks, and parity code words produced by the inter-track error correction encoding are distributed to a second predetermined recording area of each track of the continuous tracks.

    摘要翻译： 输入数字数据被格式化为由经过纠错编码处理的预定数量的数据组成的数据块，并记录在预定数量的记录介质的连续轨道上。 在纠错编码处理中，对数据块进行轨道间纠错编码，外部纠错编码和内部纠错编码。 在轨道间纠错编码中，要从要记录在连续轨道的不同轨道上的数据收集的符号产生要被编码的每个信息元素。 数据块中的纠错编码数据被分配到连续轨道的每个轨道的第一预定记录区域，并且由轨道间纠错编码产生的奇偶校验码字被分配到每个轨道的第二预定记录区域 连续轨道。

    Apparatus for recording and reproducing digital data and method for the same
    36.
    发明授权
    Apparatus for recording and reproducing digital data and method for the same 失效
    用于记录和再现数字数据的装置及其方法

    公开(公告)号：US06424478B2

    公开(公告)日：2002-07-23

    申请号：US09801502

    申请日：2001-03-08

    申请人： Shinji Hamai ,  Fumikazu Imai ,  Chiyoko Matsumi ,  Akira Iketani

    发明人： Shinji Hamai ,  Fumikazu Imai ,  Chiyoko Matsumi ,  Akira Iketani

    IPC分类号： G11B509

    CPC分类号： G11B27/107 ,  G11B20/1209 ,  G11B27/11 ,  G11B27/3027 ,  G11B27/328 ,  G11B2220/655 ,  G11B2220/90 ,  G11B2220/913

    摘要： An apparatus for recording and reproducing digital data according to the present invention, includes: a group converter; a controller; a recording converter; a recording unit; a reproducing unit; a reproducing converter; and a group reverse converter, wherein the group converter includes: a block management data generator for receiving the management data from the controller and generating block management data with respect to the corresponding blocked data, the block management data having a variable-length and containing information concerning each blocked data; a group management data generator for receiving the management data and generating group management data containing information concerning the entire grouped data; and a grouped data generator for receiving the blocked data, the block management data, and the group management data, and generating grouped data by arranging the blocked data, the block management data, and the group management data in a predetermined order.

    摘要翻译： 根据本发明的用于记录和再现数字数据的装置包括：组转换器; 控制器 记录转换器; 记录单元; 再现单元; 再现转换器; 以及组合逆变换器，其中所述组转换器包括：块管理数据发生器，用于从所述控制器接收所述管理数据，并相对于所述对应的阻塞数据生成块管理数据，所述块管理数据具有可变长度并且包含信息 关于每个封锁的数据; 组管理数据发生器，用于接收管理数据，并生成包含关于整个分组数据的信息的组管理数据; 以及分组数据发生器，用于接收阻塞数据，块管理数据和组管理数据，并且以预定顺序排列阻塞数据，块管理数据和组管理数据来生成分组数据。

    Recording and reproducing apparatus
    37.
    发明授权
    Recording and reproducing apparatus 失效
    记录和再现设备

    公开(公告)号：US5323244A

    公开(公告)日：1994-06-21

    申请号：US124748

    申请日：1993-09-22

    申请人： Susumu Yamaguchi ,  Chiyoko Matsumi

    发明人： Susumu Yamaguchi ,  Chiyoko Matsumi

    IPC分类号： G11B15/02 ,  G06F21/10 ,  G09C1/00 ,  G11B20/10 ,  H04N5/913 ,  H04N5/92 ,  H04N7/167 ,  H04N7/16

    CPC分类号： H04N5/913 ,  H04N5/9206 ,  H04N7/1675 ,  H04N2005/91364

    摘要： A recording and reproducing apparatus suitable for keeping the secrecy of video and audio signals recorded in, for example, a video tape recorder for private use to a high degree. A recording portion of the recording and reproducing apparatus is provided with an identification code input device, an operation designating device and an operation circuit. Further, a reproducing portion of the recording and reproducing apparatus is provided with an operation identification device and a comparator. When recording video and audio signals, a scramble pattern for scrambling the video and audio signals is generated from an input identification code to scramble the video and audio signals. Further, a predetermined operation is performed on the input identification code to produce a first ID signal representing a result of the operation. Then, the scrambled video and audio signals, the first ID signal and an operation identification signal indicating data designating the operation are recorded. When reproducing the video and audio signals, the predetermined operation designated by the operation identification signal is performed on an identification code input from the exterior of the apparatus. Then, a second ID signal representing a result of this operation is compared with the first ID signal reproduced by the reproducing portion. Subsequently, a descrambling is performed on the scrambled video and audio signals according to a result of the comparison.

    摘要翻译： 一种用于保持记录在例如用于私人使用的录像机中的视频和音频信号的保密性的记录和再现装置。 记录和再现装置的记录部分设置有识别码输入装置，操作指定装置和操作电路。 此外，记录和再现装置的再现部分设置有操作识别装置和比较器。 当记录视频和音频信号时，从输入的识别码产生用于加扰视频和音频信号的加扰模式以加扰视频和音频信号。 此外，对输入的识别码执行预定的操作，以产生表示操作结果的第一ID信号。 然后，记录加密的视频和音频信号，第一ID信号和指示指示操作的数据的操作识别信号。 当再现视频和音频信号时，由从设备的外部输入的识别码执行由操作识别信号指定的预定操作。 然后，将表示该操作的结果的第二ID信号与由再现部分再现的第一ID信号进行比较。 随后，根据比较的结果对加扰的视频和音频信号执行解扰。