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    • 2. 发明授权
    • Method of recording and reproducing digital signals in different signal
transmission modes and recording medium therefor
    • 以不同的信号传输模式记录和再现数字信号的方法及其记录介质
    • US5933568A
    • 1999-08-03
    • US611165
    • 1996-03-05
    • Seiji HigurashiTakeo OhishiMitsuo Harumatsu
    • Seiji HigurashiTakeo OhishiMitsuo Harumatsu
    • G11B20/12H04N5/7826H04N5/783H04N9/804H04N9/82H04N5/91G11B5/09
    • H04N9/8042G11B20/12H04N5/78266H04N5/783H04N9/8227
    • A method for recording and reproducing digital signals in and from a recording medium is provided. The digital signals are to be recorded in any given k-th mode of N-kind digital signal transmission modes of mutually different packet sizes. Digital signals of p.sub.k packets with additional data are recorded on tracks of the recording medium in unit of d.sub.k data blocks. Data blocks of a multiple of the least common multiple R of the data block recording units of the respective digital signals of the N-kind digital signal transmission modes are recorded in each track. The data blocks recorded in the recording medium are reproduced. Here, N is a two or more natural number, k is 1 to N, and p.sub.k and d.sub.k are a natural number. There is a case where the digital signals are to be recorded in first and second digital signal transmission modes of two different packet sizes. In this case, in the first digital signal transmission mode, the digital signals of one packet in unit of two data blocks with the additional data are recorded. Further, in the second digital signal transmission mode, the digital signals of two packets in unit of three data blocks with the additional data are recorded. And, the data blocks of a multiple of six are recorded in each track on the recording medium.
    • 提供了一种用于在记录介质中记录和再现数字信号的方法。 数字信号将以相互不同的分组大小的N种数字信号传输模式的任何给定的第k种模式进行记录。 具有附加数据的pk分组的数字信号以dk数据块为单位记录在记录介质的轨道上。 N个数字信号发送模式的各个数字信号的数据块记录单元的最小公倍数R的倍数的数据块被记录在每个轨道中。 记录在记录介质中的数据块被再现。 这里,N是两个以上的自然数,k是1〜N,pk和dk是自然数。 存在以两种不同分组大小的第一和第二数字信号传输模式记录数字信号的情况。 在这种情况下,在第一数字信号发送模式中,以具有附加数据的两个数据块为单位的一个分组的数字信号被记录。 此外,在第二数字信号传输模式中,记录具有附加数据的三个数据块单位的两个分组的数字信号。 并且,六个倍数的数据块被记录在记录介质上的每个轨道中。
    • 3. 发明授权
    • Digital signal recording method and apparatus and recording medium therefor
    • 数字信号记录方法及其设备及记录介质
    • US06317557B1
    • 2001-11-13
    • US09458019
    • 1999-12-10
    • Seiji HigurashiTakeo OhishiMitsuo Harumatsu
    • Seiji HigurashiTakeo OhishiMitsuo Harumatsu
    • H04N5783
    • H04N9/8042H04N5/783H04N7/52
    • Digital signals are recorded in sequential tracks on a tape-form recording medium. In the case where the digital signals are recorded in accordance with a first recording format, at least first digital signals for normal reproduction are recorded in a single area of the first format on each track. In the case where the digital signals are recorded in accordance with at least a second recording format, at least the first digital signals are recorded in a specific area among divided areas of the second format, the divided areas being rewritable independently on each track, the specific area being common for both the first and second formats. And, second digital signals for special reproduction are recorded in previously determined areas among recording areas on each track, the recording areas being common for both the first and second formats.
    • 数字信号被记录在带状记录介质上的顺序轨道中。 在根据第一记录格式记录数字信号的情况下,用于正常再现的至少第一数字信号被记录在每个磁道上的第一格式的单个区域中。 在根据至少第二记录格式记录数字信号的情况下,至少第一数字信号被记录在第二格式的分割区域中的特定区域中,分割区域可在每个轨道上独立地重写, 特定区域对于第一和第二格式是共同的。 并且,用于特殊再现的第二数字信号被记录在每个轨道上的记录区域中的先前确定的区域中,记录区域对于第一和第二格式是共同的。
    • 6. 发明授权
    • Helical scan data recording apparatus and a helical scan data reproducing apparatus
    • 螺旋扫描数据记录装置和螺旋扫描数据再现装置
    • US06334024B1
    • 2001-12-25
    • US08754530
    • 1996-11-21
    • Takeo OhishiMitsuo HarumatsuSeiji Higurashi
    • Takeo OhishiMitsuo HarumatsuSeiji Higurashi
    • H04N591
    • G11B20/1809G11B27/032G11B27/3027G11B27/3063G11B2220/90
    • A data recording apparatus is disclosed comprising memory circuits for storing video and sound data, and an error check code generation circuit for generating check codes for the data. The check code data is stored in a data block including the data and the check code data generated in accordance with the data. The apparatus includes an interleaving portion for reading the data and check code data for every stored data block and interleaving a predetermined number of the data blocks to provide an editing unit. The apparatus further includes a recording portion for recording the interleaved data blocks on a magnetic tape through helical scanning of every editing unit. The data may include video data and corresponding sound data. The video data is recorded on the magnetic tape on consecutive (t−p) tracks and the sound data is recorded on the magnetic tape on consecutive p tracks. One of a plurality of interleaving patterns is selected, and data indicative of the interleaving pattern is also recorded at a sub-code area on each track. A data reproducing apparatus including a de-interleaving portion for restoring the interleaved data block is also disclosed.
    • 公开了一种数据记录装置,包括用于存储视频和声音数据的存储电路,以及用于产生数据的检验码的错误校验码产生电路。 校验码数据被存储在包括根据数据生成的数据和校验码数据的数据块中。 该装置包括用于读取数据并检查每个存储的数据块的代码数据并交织预定数量的数据块以提供编辑单元的交织部分。 该装置还包括记录部分,用于通过每个编辑单元的螺旋扫描将交错的数据块记录在磁带上。 数据可以包括视频数据和对应的声音数据。 视频数据在连续的(t-p)磁道上记录在磁带上,声音数据在连续的p磁道上记录在磁带上。 选择多个交织模式中的一个,并且指示交织模式的数据也被记录在每个轨道上的子代码区域。 还公开了一种包括用于恢复交错数据块的解交织部分的数据再现装置。
    • 7. 发明授权
    • Method, device, and medium for recording digital signal
    • 用于记录数字信号的方法,设备和介质
    • US6108148A
    • 2000-08-22
    • US913998
    • 1997-09-29
    • Seiji HigurashiTakeo OhishiMitsuo Harumatsu
    • Seiji HigurashiTakeo OhishiMitsuo Harumatsu
    • G11B15/087G11B15/18G11B15/467G11B20/10G11B20/12G11B27/00G11B27/30G11B27/32H04N5/7826H04N5/783H04N5/92H04N9/804H04N9/82G11B5/02
    • G11B15/087G11B15/1875G11B20/10G11B20/10527G11B20/1208G11B27/005G11B27/3027G11B27/3063G11B27/324H04N5/783H04N9/8042G11B15/4673H04N5/78263H04N9/8227
    • A digital signal recording and reproducing method and apparatus that record and reproduce sequentially a normal reproducing digital signal and a multiple kind special reproducing digital signal on and from a tape-like recording medium. The data rate of the normal reproducing digital signal is detected. According to the detected data rate, either of the normal reproducing digital signal or special reproducing digital signal is selected. The selected digital signal is recorded at the predetermined location on a recording medium for recording the special reproducing digital signal. The sequentially recorded digital signal is reproduced, and each reproduced signal is detected either the normal reproducing digital signal or the multiple kind special reproducing digital signal. The digital signal detected as either of the digital signals is outputted separately. A tape-like recording medium having a track pattern having a plurality of tracks on which a normal reproducing digital signal and a multiple kind special reproducing digital signal are recorded sequentially. The track pattern provides a first area recording information showing the predetermined location at which the multiple kind special reproducing digital signal is to be recorded, and a plurality of second areas that are locations shown by information and record either of said normal reproducing digital signal or special reproducing digital signal is selected and recorded, according to the data rate of the normal reproducing digital signal.
    • PCT No.PCT / JP96 / 00792 Sec。 371日期:1997年9月29日 102(e)1997年9月29日PCT PCT 1996年3月27日PCT公布。 公开号WO96 / 31053 日期1996年10月3日一种数字信号记录和再现方法和装置,其顺序地在带状记录介质上记录和再现正常再现数字信号和多种专用再现数字信号。 检测正常再现数字信号的数据速率。 根据检测到的数据速率,选择正常再现数字信号或特殊再现数字信号。 所选择的数字信号被记录在用于记录特殊重放数字信号的记录介质上的预定位置处。 再现顺序记录的数字信号,并且检测每个再现信号是正常再现数字信号还是多种专用再现数字信号。 检测为数字信号中的任一个的数字信号被单独输出。 具有轨道图案的带状记录介质具有多个轨道,其上依次记录有正常再现数字信号和多种专用再现数字信号。 轨道图案提供表示要记录多种特殊再现数字信号的预定位置的第一区域记录信息,以及作为信息显示的位置的多个第二区域,并记录所述正常再现数字信号或特殊的 根据正常再现数字信号的数据速率来选择和记录再现数字信号。
    • 10. 发明授权
    • Method and apparatus for processing picture information, and recording
medium
    • 用于处理图像信息的方法和装置以及记录介质
    • US6134374A
    • 2000-10-17
    • US804965
    • 1997-02-24
    • Mitsuo HarumatsuTakeo Ohishi
    • Mitsuo HarumatsuTakeo Ohishi
    • H04N9/797H04N9/804H04N9/82H04N5/91H04N5/917
    • H04N9/8042H04N9/7973H04N9/8205
    • Input picture information is divided into first and second division-resultant signals. Y-signal DCT blocks, Cr-signal DCT blocks, and Cb-signal DCT blocks are generated from the first division-resultant signal. Y-signal DCT blocks, Cr-signal DCT blocks, and Cb-signal DCT blocks are generated from the second division-resultant signal. Dummy DCT blocks are generated which are distinguishable from the Y-signal DCT blocks related to the first and second division-resultant signals. The Y-signal DCT blocks, the Cr-signal DCT blocks, and the Cb-signal DCT blocks related to the first division-resultant signal, and the dummy DCT blocks are grouped into macro-blocks each having two Y-signal DCT blocks, one Cr-signal DCT block, one Cb-signal DCT block, and two dummy DCT blocks to modify the first-division-resultant signal into a first modification-resultant signal. The Y-signal DCT blocks, the Cr-signal DCT blocks, and the Cb-signal DCT blocks related to the second division-resultant signal, and the dummy DCT blocks are grouped into macro-blocks each having two Y-signal DCT blocks, one Cr-signal DCT block, one Cb-signal DCT block, and two dummy DCT blocks to modify the second division-resultant signal into a second modification-resultant signal. The first modification-resultant signal is compressed by DCT and variable length encoding while a data amount of the first compression-resultant signal per given number of macro-blocks is maintained at a fixed amount. The second modification-resultant signal is similarly compressed.
    • 输入图像信息被分成第一和第二分割信号。 从第一分割信号生成Y信号DCT块,Cr信号DCT块和Cb信号DCT块。 从第二除法信号产生Y信号DCT块,Cr信号DCT块和Cb信号DCT块。 产生与与第一和第二除法信号相关的Y信号DCT块可区分的虚拟DCT块。 将Y信号DCT块,Cr信号DCT块和与第一分割信号相关的Cb信号DCT块和虚拟DCT块分组为具有两个Y信号DCT块的宏块, 一个Cr信号DCT块,一个Cb信号DCT块和两个虚拟DCT块,以将第一分割结果信号修改为第一修改结果信号。 将Y信号DCT块,Cr信号DCT块和与第二分割结果信号相关的Cb信号DCT块和虚拟DCT块分组为具有两个Y信号DCT块的宏块, 一个Cr信号DCT块,一个Cb信号DCT块和两个虚拟DCT块,以将第二分割结果信号修改为第二修改结果信号。 第一修改结果信号通过DCT和可变长度编码被压缩,同时每给定数量的宏块的第一压缩结果信号的数据量保持固定量。 第二修改结果信号被类似地压缩。