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28 条记录 (耗时 0.018 秒)

    Data recording/reproducing apparatus employing read-after-write system
    1.
    发明授权
    Data recording/reproducing apparatus employing read-after-write system 失效
    采用写后系统的数据记录/再现装置

    公开(公告)号：US6141164A

    公开(公告)日：2000-10-31

    申请号：US671330

    申请日：1996-06-27

    申请人： Hiroshi Ishibashi ,  Toshiyuki Hirose ,  Shinya Ozaki

    发明人： Hiroshi Ishibashi ,  Toshiyuki Hirose ,  Shinya Ozaki

    IPC分类号： G11B5/09 ,  G11B20/12 ,  G11B20/18 ,  G06F11/00 ,  H03M13/00

    CPC分类号： G11B20/1809 ,  G11B20/1879 ,  G11B20/1211 ,  G11B2020/183 ,  G11B2220/913

    摘要： A recording apparatus provided on, for example, a digital audio tape recorder or on a data storage device for correctly and reliably recording data. An ECC unit 23 appends the parity for error correction to recording data and transmits the resulting data to recording heads Hw1, Hw2, while recording the parity in a RAM 61. The recording data and the parity are reproduced from a magnetic tape 32 by magnetic heads Hr1, Hr2 and supplied to a subcode separation unit 45. A syndrome detection unit 62 detects the number of error corrections performed by parity by an error correction unit 46. A system controller 63 compares the number of times of error corrections to a threshold value and compares the parity read out from the RAM 61 to the parity from the sub-code separation unit 45 in order to detect if the recording data has been recorded correctly. If the recording data has not been recorded correctly, the system controller controls a recording/reproducing unit 30 for re-recording the same recording data.

    摘要翻译： 一种设置在数字音频磁带录像机或数据存储装置上的用于正确和可靠地记录数据的记录装置。 ECC单元23将用于纠错的奇偶校验附加到记录数据，并将结果数据发送到记录头Hw1，Hw2，同时将奇偶校验记录在RAM 61中。记录数据和奇偶校验由磁头32通过磁头 Hr1，Hr2并提供给子代码分离单元45.错误检测单元62通过纠错单元46检测由奇偶校验执行的错误校正的数量。系统控制器63将误差校正的次数与阈值和 将从RAM 61读出的奇偶校验与来自子代码分离单元45的奇偶校验进行比较，以便检测记录数据是否已被正确记录。 如果记录数据没有被正确地记录，则系统控制器控制用于重新记录相同记录数据的记录/再现单元30。

    Data recorder and method of operation
    9.
    发明授权
    Data recorder and method of operation 失效
    数据记录仪及操作方法

    公开(公告)号：US5144501A

    公开(公告)日：1992-09-01

    申请号：US745991

    申请日：1991-08-08

    申请人： Yoshizumi Inazawa ,  Shinya Ozaki ,  Brian Milthorp ,  Bruce Thompson

    发明人： Yoshizumi Inazawa ,  Shinya Ozaki ,  Brian Milthorp ,  Bruce Thompson

    IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B27/30

    CPC分类号： G11B20/10 ,  G11B20/1209 ,  G11B27/3063 ,  G11B20/1211 ,  G11B2220/90 ,  G11B2220/913

    摘要： In this invention, a predetermined amount of data is given as one frame, and data having a predetermined format is recorded for each frame. A first area recording main data and a second area recording sub data are formed in each frame. Plural types of units each consisting of a plurality of frames are set, and a number of first units from a leading end of a recording medium and the numbers of other units from the leading end of the recording medium to a trailing end of the first units are recorded in the second area of a frame constituting the unit including the trailing end, thus facilitating a high-speed search operation.

    摘要翻译： 在本发明中，作为一帧给出预定数量的数据，并且每帧记录具有预定格式的数据。 在每个帧中形成记录主数据和第二区记录子数据的第一区。 设置由多个帧组成的多种类型的单元，以及来自记录介质的前端的多个第一单元和从记录介质的前端到第一单元的后端的其它单元的数量 被记录在构成包括尾端的单元的帧的第二区域中，从而便于高速搜索操作。

    Method and apparatus for reproducing multiply recorded data
    10.
    发明授权
    Method and apparatus for reproducing multiply recorded data 失效
    用于再现多重记录数据的方法和装置

    公开(公告)号：US5144500A

    公开(公告)日：1992-09-01

    申请号：US728304

    申请日：1991-07-05

    申请人： Kentaro Odaka ,  Shinya Ozaki ,  Brian Milthorp

    发明人： Kentaro Odaka ,  Shinya Ozaki ,  Brian Milthorp

    IPC分类号： G11B20/12 ,  G11B20/18 ,  G11B27/30

    CPC分类号： G11B20/1803 ,  G11B20/1209 ,  G11B27/3027 ,  G11B27/3063 ,  G11B20/1211 ,  G11B2220/90 ,  G11B2220/913

    摘要： A digital audio tape recorder is used as a digital data storage recorder and digital signals containing main data and sub-data are recorded in separate areas in each track of a plurality of tracks formed on a recording medium, wherein a predetermined number of tracks constitute a group and a plurality of groups are recorded on the medium. In the sub-area an identification signal is further recorded which indicates whether or not main data recorded in the main areas of a given group is same as the main data recorded in the main areas of preceding and subsequent adjacent groups. When identical data is multiply written for a plurality of units, a division of the multiply written portions is detected, and signal processing is facilitated.

    摘要翻译： 使用数字音频磁带记录器作为数字数据存储记录器，并且将包含主数据和子数据的数字信号记录在形成在记录介质上的多个磁道的每个磁道中的分离区域中，其中预定数量的磁道构成 组和多个组被记录在介质上。 在子区域中，进一步记录识别信号，其指示记录在给定组的主要区域中的主要数据是否与记录在前一个和后续相邻组的主要区域中的主要数据相同。 当对于多个单元对相同的数据进行多次写入时，检测乘法写入部分的划分，并且便于信号处理。