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    Authentication system, and contents-information sender and receiver
    2.
    发明授权
    Authentication system, and contents-information sender and receiver 有权
    认证系统和内容信息发送者和接收者

    公开(公告)号：US06983369B2

    公开(公告)日：2006-01-03

    申请号：US09836325

    申请日：2001-04-18

    申请人： Takeo Ohishi

    发明人： Takeo Ohishi

    IPC分类号： H01L9/00

    CPC分类号： G06F21/606 ,  G06F21/445 ,  H04L9/3247 ,  H04L9/3263 ,  H04L2209/30 ,  H04L2209/603

    摘要： First information is sent from a contents-information receiver apparatus to a contents-information sender apparatus. The first information includes a combination of certificate information and second information for the contents-information receiver apparatus. The first information further includes a signal of a signature for the combination of the certificate information and the second information. In the contents-information sender apparatus, a determination is made as to whether the combination of the certificate information and the second information in the first information is correct or wrong in response to the signal of the signature in the first information. In the contents-information sender apparatus, the second information is extracted from the first information before being stored. The second information for the contents-information receiver apparatus is sent from the contents-information receiver apparatus to the contents-information sender apparatus. In the contents-information sender apparatus, the sent second information is collated with the stored second information.

    摘要翻译： 第一信息从内容信息接收装置发送到内容信息发送装置。 第一信息包括证书信息和内容信息接收装置的第二信息的组合。 第一信息还包括用于证书信息和第二信息的组合的签名的信号。 在内容信息发送装置中，对第一信息中的签名的信号作出响应，判定第一信息中的证书信息和第二信息的组合是正确还是错误。 在内容信息发送装置中，从存储前的第一信息中提取第二信息。 内容信息接收装置的第二信息从内容信息接收装置发送到内容信息发送装置。 在内容信息发送装置中，将发送的第二信息与存储的第二信息进行核对。

    Clock signal generation apparatus
    3.
    发明授权
    Clock signal generation apparatus 有权

    公开(公告)号：US06345079B1

    公开(公告)日：2002-02-05

    申请号：US09177633

    申请日：1998-10-23

    申请人： Takeo Ohishi

    发明人： Takeo Ohishi

    IPC分类号： H04L700

    CPC分类号： H04N21/6336 ,  H03L7/095 ,  H03L7/146 ,  H03L7/181 ,  H04N21/4135 ,  H04N21/4305 ,  H04N21/6112

    摘要： A clock signal generation apparatus includes a first device for extracting reference information from an input digital signal. An oscillator operates for generating a reference clock signal having a frequency depending on a control signal. A second device connected to the first device and the oscillator operates for generating the control signal to the oscillator in response to the reference clock signal generated by the oscillator and the reference information extracted by the first device, and for locking a phase of the reference clock signal to the reference information. A third device connected to the second device operates for deciding whether or not the phase of the reference clock signal is successfully locked to the reference information. A fourth device connected to the second device, a memory, and the third device operates for storing the control signal generated by the second device into the memory when the third device decides that the phase of the reference clock signal is successfully locked to the reference information. A fifth device connected to the memory, the oscillator, and the second device operates for selecting one of the control signal currently generated by the second device and the control signal stored in the memory, and for feeding the selected control signal to the oscillator.

    Method of recording various different video signals onto magnetic tape
    5.
    发明授权
    Method of recording various different video signals onto magnetic tape 失效
    将各种不同的视频信号记录到磁带上的方法

    公开(公告)号：US6011896A

    公开(公告)日：2000-01-04

    申请号：US317825

    申请日：1999-05-25

    申请人： Seiji Higurashi ,  Takeo Ohishi ,  Mitsuo Harumatsu

    发明人： Seiji Higurashi ,  Takeo Ohishi ,  Mitsuo Harumatsu

    IPC分类号： H04N5/91 ,  G11B5/008 ,  G11B15/12 ,  G11B15/18 ,  G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  G11B27/30 ,  H04N5/782 ,  H04N5/7826 ,  H04N5/92 ,  H04N9/797 ,  H04N9/80 ,  H04N9/804 ,  H04N19/423 ,  H04N19/48 ,  H04N19/60 ,  H04N19/65 ,  H04N19/70 ,  H04N5/76 ,  H04N7/08

    CPC分类号： H04N5/78263 ,  G11B15/125 ,  G11B15/1875 ,  G11B27/036 ,  G11B27/3027 ,  G11B5/0086 ,  G11B2220/216 ,  G11B2220/90 ,  G11B27/032 ,  G11B5/00878 ,  H04N9/7973 ,  H04N9/804

    摘要： A method of recording video data and the accompanied sound data capable of editing the video data and sound data track by track without editing gaps is disclosed. The track format includes a first block of tracks for video data and a second block of tracks for sound data for a predetermined number of frames. Another method of selectively recording one of a plurality of kinds of video data having different amounts of data per frame or field and the accompanied sound data (NTSC and PAL for example) is provided. In this method, the video data and sound data are recorded with a recording and editing unit which is a determined by a common multiple of the selected one of kinds of video data among the amounts of data of the different kinds of video data. In NTSC method the video and sound data are receded every six frames or fields and in the PAL method, the video and sound data are recorded every 5 frames or fields, so that a track pattern having T=24 tracks including P tracks for sound data and T-P tracks for video data are recurrently recorded. The video and sound data are recorded track by track, so that video and sound data can be edited tack by track.

    摘要翻译： 公开了一种记录视频数据的方法和能够编辑视频数据和声音数据轨道的陪伴声音数据，而不编辑间隙。 轨道格式包括用于视频数据的第一磁道块和用于预定数量帧的声音数据的第二磁道块。 提供了选择性地记录每帧或场中具有不同数据量的多种视频数据之一和伴随声音数据（例如NTSC和PAL）的另一种方法。 在这种方法中，视频数据和声音数据被记录在记录和编辑单元中，该记录和编辑单元是由不同种类的视频数据的数据量之中的所选视频数据中所选择的一种视频数据的公倍数确定的。 在NTSC制方法中，视频和声音数据每六帧或场减去，PAL制式中，视频和声音数据每5帧或场记录一次，使得具有T = 24个轨道的轨道图案包括用于声音数据的P轨道 并且用于视频数据的TP轨道被重复记录。 视频和声音数据按轨道记录，从而可以通过轨道编辑视频和声音数据。

    Method of recording and reproducing digital signals in different signal transmission modes and recording medium therefor
    6.
    发明授权
    Method of recording and reproducing digital signals in different signal transmission modes and recording medium therefor 失效
    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

    公开(公告)号：US5933568A

    公开(公告)日：1999-08-03

    申请号：US611165

    申请日：1996-03-05

    申请人： Seiji Higurashi ,  Takeo Ohishi ,  Mitsuo Harumatsu

    发明人： Seiji Higurashi ,  Takeo Ohishi ,  Mitsuo Harumatsu

    IPC分类号： G11B20/12 ,  H04N5/7826 ,  H04N5/783 ,  H04N9/804 ,  H04N9/82 ,  H04N5/91 ,  G11B5/09

    CPC分类号： H04N9/8042 ,  G11B20/12 ,  H04N5/78266 ,  H04N5/783 ,  H04N9/8227

    摘要： 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.

    摘要翻译： 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。

    Magnetic recording and reproducing apparatus
    7.
    发明授权
    Magnetic recording and reproducing apparatus 失效
    磁记录和再现设备

    公开(公告)号：US5912780A

    公开(公告)日：1999-06-15

    申请号：US787771

    申请日：1997-01-28

    申请人： Yasuaki Yamada ,  Takeo Ohishi

    发明人： Yasuaki Yamada ,  Takeo Ohishi

    IPC分类号： H04N5/783 ,  G11B5/09 ,  G11B5/53 ,  G11B15/12 ,  G11B15/18 ,  G11B15/14

    CPC分类号： G11B5/534 ,  G11B15/125 ,  G11B15/1875

    摘要： A magnetic recording and reproducing apparatus has a rotary magnetic head mechanism having at least a first rotary magnetic head with a magnetic gap set to a azimuth angle less than 90 degrees in a clockwise direction with respect to a width direction of recorded traces and a second rotary magnetic head with a magnetic gap set to a azimuth angle less than 90 degrees in a counterclockwise direction with respect to the width direction. The traces are formed on a magnetic tape moving in a forward direction at a speed in accordance with a rotational locus of the heads moving and obliquely crossing a travel direction of the tape. The first output signals obtained by the first head are selected in the case where a rotational locus surface of the heads changes in a reproduction operation within an angular range less than 180 degrees in a clockwise direction with respect to the traces formed on the tape. On the other hand, the second output signals obtained by the second head are selected in the case where the rotational locus surface of the heads changes in the reproduction operation within an angular range less than 180 degrees in a counterclockwise direction with respect to the direction of the traces formed on the tape. Reproduction is executed in response to the selected first or second output signals while the tape is being moved in the forward direction or a reverse direction at a speed higher than that while recording.

    摘要翻译： 一种磁记录和再现装置具有旋转磁头机构，该旋转磁头机构具有至少一个第一旋转磁头，其具有相对于所记录的轨迹的宽度方向沿顺时针方向设置为小于90度的方位角的磁隙，以及第二旋转 具有相对于宽度方向在逆时针方向上设置为小于90度的方位角的磁性间隙的磁头。 这些迹线形成在磁带上，该磁带以沿着磁带的移动和倾斜地穿过磁带的行进方向的磁头的旋转轨迹的速度沿向前方向移动。 在头部的旋转轨迹表面相对于形成在磁带上的迹线沿顺时针方向在小于180度的角度范围内变化的情况下，选择由第一磁头获得的第一输​​出信号。 另一方面，在第一磁头中获得的第二输出信号在再现操作中的旋转轨迹表面相对于方向的逆时针方向在小于180度的角度范围内变化的情况下被选择 磁带上形成的痕迹。 当磁带以比记录时高的速度在正向或反方向移动时，响应于所选择的第一或第二输出信号执行再生。

    Digital information modulating apparatus
    8.
    发明授权
    Digital information modulating apparatus 失效
    数字信息调制装置

    公开(公告)号：US5802081A

    公开(公告)日：1998-09-01

    申请号：US495071

    申请日：1995-06-27

    申请人： Takeo Ohishi

    发明人： Takeo Ohishi

    IPC分类号： H04N5/922 ,  G11B15/46 ,  G11B15/467 ,  G11B20/12 ,  G11B20/14 ,  G11B27/30 ,  H04L27/34 ,  H04N5/92 ,  G11B20/08

    CPC分类号： G11B15/463 ,  G11B15/4678 ,  G11B20/1426 ,  G11B27/3027

    摘要： Information is divided into first blocks each having m bits, and n bit or bits in each of S different states are added to a head of each of the first blocks to change the first block into S second blocks each having m+n bits, where m and n denote predetermined natural numbers and S denotes a predetermined natural number equal to or smaller than 2.sup.n. Each of the S second blocks is pre-coded into S pre-coded information blocks respectively. One of the S pre-coded information blocks is selected as a modulation-resultant information signal in response to error signals related to the S pre-coded information blocks respectively. The modulation-resultant information signal has q different notch frequencies. The S pre-coded information blocks are converted into S amplitude signals representing amplitude values respectively. A set of q first waveform signals and a set of q second waveform signals are generated. The q first waveform signals represent waveforms related to the q notch frequencies respectively. The q second waveform signals are different in phase from the q first waveform signals by 90.degree. respectively. Each of the S amplitude signals and the 2q waveform signals are multiplied into 2q multiplication-resultant signals. The 2q multiplication-resultant signals are added and accumulated into 2q addition-resultant signals respectively with respect to each of the S pre-coded information blocks. An error signal is generated in response to the 2q addition-resultant signals, and thereby the S error signals are generated which relate to the S pre-coded information blocks respectively.

    摘要翻译： 信息被分成具有m位的第一块，并且在S个不同状态中的每一个中的n位或比特被添加到每个第一块的头部，以将第一块改变为具有m + n位的S个第二块，其中 m和n表示预定的自然数，S表示等于或小于2n的预定自然数。 每个S个第二块分别被预编码为S个预编码信息块。 响应于与S个预编码信息块相关的错误信号，选择S个预编码信息块中的一个作为调制结果信息信号。 调制结果信息信号具有不同的陷波频率。 S个预编码信息块被分别转换成表示振幅值的S个振幅信号。 产生一组q个第一波形信号和一组q个第二波形信号。 q个第一波形信号分别表示与q个陷波频率相关的波形。 q个第二波形信号的相位与q个第一波形信号分别相差90°。 S幅度信号和2q波形信号中的每一个被乘以2q个乘积信号。 相对于每个S个预编码信息块，分别将2q个乘积信号相加并累加到​​2q个相加信号中。 响应于2q相加信号产生误差信号，从而分别产生与S个预编码信息块有关的S个误差信号。

    Information recording device, information reproduction device, information recording method, information reproduction method, information recording program, information reproduction program, and information recording medium
    9.
    发明授权
    Information recording device, information reproduction device, information recording method, information reproduction method, information recording program, information reproduction program, and information recording medium 有权
    信息记录装置，信息再现装置，信息记录方法，信息再现方法，信息记录程序，信息再现程序和信息记录介质

    公开(公告)号：US07778517B2

    公开(公告)日：2010-08-17

    申请号：US10506527

    申请日：2003-03-04

    申请人： Yuichi Kanai ,  Yoshihiro Hori ,  Ryoji Ohno ,  Takeo Ohishi ,  Kenichiro Tada ,  Tatsuya Hirai

    发明人： Yuichi Kanai ,  Yoshihiro Hori ,  Ryoji Ohno ,  Takeo Ohishi ,  Kenichiro Tada ,  Tatsuya Hirai

    IPC分类号： H04N5/91 ,  H04N5/00

    CPC分类号： G11B27/3027 ,  G11B20/12 ,  G11B27/034 ,  G11B27/105 ,  H04N5/76 ,  H04N5/9201

    摘要： An information recording apparatus is provided whereby in the reproduction of broadcasting information, the broadcasting information can be recorded so that the combination and so on of contents included in the broadcasting information can be recognized without the need for reproducing the broadcasting information itself.An information recording apparatus for recording broadcasting information constituted of a packet which has a predetermined amount of information and includes different types of contents, each type including one or more contents, the apparatus including a controller 8. The controller 8 generates contents group information based on correlation information which is included in the received broadcasting information and indicates a correlation between the contents, the contents group information including identification information for identifying the relationship between the packet and the content and type information indicating the type of the content, the contents group information indicating a contents group to include the one or more contents, and the controller 8 records the generated contents group information on a hard disk 1 with the broadcasting information.

    摘要翻译： 提供了一种信息记录装置，其中在广播信息的再现中，可以记录广播信息，使得能够识别广播信息中包含的内容的组合等，而不需要再现广播信息本身。 一种信息记录装置，用于记录由具有预定量的信息并包括不同类型的内容的分组构成的广播信息，每种类型包括一个或多个内容，该装置包括控制器8.控制器8基于 相关信息包括在所接收的广播信息中并且指示内容之间的相关性，包括用于识别分组与内容之间的关系的识别信息的内容组信息和指示内容的类型的类型信息，内容组信息指示 包含一个或多个内容的内容组，并且控制器8将生成的内容组信息记录在具有广播信息的硬盘1上。