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    PCM signal reproducing device
    3.
    发明授权
    PCM signal reproducing device 失效
    PCM信号再现装置

    公开(公告)号：US4943964A

    公开(公告)日：1990-07-24

    申请号：US228415

    申请日：1988-08-05

    申请人： Yuji Hatanaka ,  Hiroo Okamoto ,  Shin-ichi Wakumura ,  Ichiro Miyake ,  Shunichiro Sakamoto

    发明人： Yuji Hatanaka ,  Hiroo Okamoto ,  Shin-ichi Wakumura ,  Ichiro Miyake ,  Shunichiro Sakamoto

    IPC分类号： G11B20/10 ,  G11B20/18

    CPC分类号： G11B20/10527 ,  G11B20/1809 ,  G11B20/1876

    摘要： PCM signals belonging to a first reproduction channel and a second reproduction channel and grouped into odd number data and even number data are previously recorded on a recording medium having a plurality of tracks in the form of frames each including at least a set of a first track and a second track. In the operation of reproducing the recorded PCM data, the PCM data reproduced by reproduction heads are stored in accordance with a first control signal, errors in the stored reproduced data are detected in accordance with a second control signal, the numbers of errors are counted, comparison is made between the error number of the odd number data and that of the even number data of the first channel and of the second channel, respectively, and the data which has been judged to include a larger number of errors are replaced by interpolated data and finally the interpolated data are mute-processed at the boundary between adjacent frames.

    摘要翻译： 属于第一再现频道和第二再现频道并被分组为奇数数据和偶数数据的PCM信号被预先记录在具有帧形式的多个轨道的记录介质上，每个轨道至少包括一组第一轨道 和第二轨道。 在再现记录的PCM数据的操作中，根据第一控制信号存储由再现头再现的PCM数据，根据第二控制信号检测存储的再现数据中的错误，对错误数进行计数， 在奇数数据的误差数与第一通道和第二通道的偶数数据的错误数量之间分别进行比较，并且被判断为包含较大数量的错误的数据被插值数据 最后内插数据在相邻帧之间的边界进行静音处理。

    Information recording/reproducing apparatus with prioritized read out
    4.
    发明授权
    Information recording/reproducing apparatus with prioritized read out 失效
    具有优先读出的信息记录/再现装置

    公开(公告)号：US4864571A

    公开(公告)日：1989-09-05

    申请号：US98829

    申请日：1987-09-21

    申请人： Shunichiro Sakamoto

    发明人： Shunichiro Sakamoto

    IPC分类号： G06F3/06 ,  G06F11/08 ,  G06F12/14 ,  G06F21/02 ,  G06F21/24 ,  G11B20/18 ,  G11B27/28

    CPC分类号： G06F11/08 ,  G11B20/1806

    摘要： An information recording/reproducing apparatus includes a signal reproducer for reading various types of data, from a recording medium, and a signal processor for converting and correcting the data in the signals and associating a correction flag with each particular data to indicate whether the data is correct (i.e. corrected after read out or correct upon read out) or incorrect (i.e. incorrect upon read out and uncorrectable). The data and associated flag are stored in the memory. The signal processor then generates a permission signal which is sent to a control device. To read out data, the control device generates selection signals, and data, which are received by the signal processor. An address generator in the signal processor generates a predetermined address of the particular data stored in the memory which corresponds to the received selection signal and data. The signal processor also detects whether the correction flag associated with the data being read out corresponds to correct or incorrect data, and then reads out the correct data from the memory before reading the incorrect data.

    摘要翻译： 信息记录/再现装置包括用于从记录介质读取各种类型数据的信号再现器和用于转换和校正信号中的数据的信号处理器，并将校正标志与每个特定数据相关联以指示数据是否为 正确（即读出后修正或读出时更正）或不正确（即读出不正确或不可校正）。 数据和相关标志存储在存储器中。 信号处理器然后产生被发送到控制装置的许可信号。 为了读出数据，控制装置产生由信号处理器接收的选择信号和数据。 信号处理器中的地址发生器产生存储在与所接收的选择信号和数据相对应的存储器中的特定数据的预定地址。 信号处理器还检测与正在读出的数据相关联的校正标志是否对应于正确或不正确的数据，然后在读取不正确的数据之前从存储器读出正确的数据。