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    Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded
    3.
    发明公开
    Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded 失效
    用于与损伤变得已知的限制私人密钥传送或解码秘密密钥的高安全的方法

    公开(公告)号：EP0840477A2

    公开(公告)日：1998-05-06

    申请号：EP97308520.2

    申请日：1997-10-24

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Ohmori, Motoji ,  Kato, Takehisa ,  Endoh, Naoki ,  Hirayama, Koichi

    IPC分类号： H04L9/08

    CPC分类号： H04N21/63345 ,  H04L9/0838 ,  H04L9/0891 ,  H04N7/1675

    摘要： A transmission apparatus 100 includes a secret key storage unit 103 that stores three secret keys K1, K2 and K3, a secret key selection unit 104 that selects one secret key Ks from the secret keys, a message generation unit 106 for generating a message M used as a carrier for indicating a secret key, an encryption module 105 for generating a cryptogram Ca by encrypting the generated message M using the secret key Ks, an encryption module 107 for generating a cryptogram Cm by encrypting the message M using the message M itself as the secret key, and two transmission units 111 and 112 for transmitting the cryptograms Ca and Cm to the reception apparatus 200 to indicate the selected secret key Ks. The reception apparatus 200 includes a decryption module, such as 221, for generating decrypted data Mi by decrypting the cryptogram Ca using a secret key Ki out of the three secret keys, and a decryption module, such as 222, for generating decrypted data Mii by decrypting the cryptogram Cm using the decrypted data Mi, and authorizes that the secret key Ki has been selected when the decrypted data Mi matches the decrypted data Mii.

    摘要翻译： 的发送装置100包括：秘密键存储部103确实存储三个秘密键K1，K2和K3中，秘密键选择部104没有从秘密密钥，消息生成单元106，用于产生M个所使用的信息中选择一个秘密密钥Ks 作为用于指示秘密密钥加密模块105，用于通过加密使用秘密密钥Ks的产生消息M产生密文的Ca，加密模块107，用于通过使用所述消息M本身作为加密消息M产生密码文字Cm的载体 。秘密密钥和两个传输单元111和112，用于发送的密码文字Ca与Cm的接收装置200，以指示所选择的秘密密钥Ks的接收装置200包括解密模块，颜色：如221，用于通过生成解密的数据麋 通过解密密码文字Cm全光照如222，用于生成解密的数据的Mii：解密使用秘密密钥Ki出三个秘密密钥的密码电文Ca和解密模块，色彩 克解密的数据宓，并授权做了秘密密钥Ki已被选中当解密数据弥解密数据的Mii匹配。

    Method and apparatus for reproducing data from a recording medium
    4.
    发明公开
    Method and apparatus for reproducing data from a recording medium 失效
    一种用于从记录介质再现数据的方法和装置

    公开(公告)号：EP0836191A1

    公开(公告)日：1998-04-15

    申请号：EP97121674.2

    申请日：1993-10-29

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Hirayama, Koichi ,  Nakai, Masatoshi ,  Shimoda, Kenji

    IPC分类号： G11B27/10 ,  G11B27/32 ,  G11B20/12 ,  G11B19/02 ,  G11B27/34 ,  G09B5/06 ,  H04N5/85 ,  H04N5/92 ,  H04N9/82

    CPC分类号： G11B19/02 ,  G09B5/06 ,  G11B7/0037 ,  G11B19/022 ,  G11B20/00086 ,  G11B20/1217 ,  G11B20/1254 ,  G11B27/10 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/2562 ,  H04N5/781 ,  H04N5/85 ,  H04N5/9205 ,  H04N5/9206 ,  H04N5/9208 ,  H04N5/9267 ,  H04N9/8042 ,  H04N9/806 ,  H04N9/8063 ,  H04N9/8087 ,  H04N9/8205 ,  H04N9/8227 ,  H04N9/877

    摘要： An apparatus and a method for reproducing information from a recording disk medium, which recording disk medium includes user information comprising simultaneously proceeding scenes, whereby the program data representing the scenes is divided into a plurality of program bars.
    The reproducing apparatus has means for allowing user controlled switching between interchangeable program bars based on a multi-scene configuration information representing information defining reproduction sequences of program bars read from the disk and stored in a management data storage means, whereby an information processing means is adapted to reproduce a frame of video data of one user information program data item of one program bar, which is currently decoded and reproduced, as a still picture upon user controlled switching to another interchangeable program bar, until a related user information program data item of the other program bar has been read from the medium and decoded.Thereby, switching between interchangeable scenes can be effected smoothly without interrupted display.

    摘要翻译： 的装置和用于再现从记录磁盘介质，其记录盘介质包括用户信息包括同时继续场景，由此表示该场景的节目数据被分成程序巴的多个信息的方法。 再现装置具有用于允许基于表示的从磁盘读取并存储在管理数据存储装置，从而对信息的程序条定义信息再现序列的多场景构成信息处理装置可互换程序杆之间用户控制的切换是angepasst 以再现一个节目栏的一个用户信息的程序数据项的视频数据的帧时，所有这是目前解码和再现，作为对用户控制切换到另一个互换程序栏一个无声的画面，直到的相关用户信息的节目数据项 其他程序栏已从介质和decoded.Thereby读的，可互换的场景之间的切换可以在不中断的显示平滑地进行。

    Video signals compression/decompression device for video disk recording/reproducing apparatus
    5.
    发明公开
    Video signals compression/decompression device for video disk recording/reproducing apparatus 失效
    用于在Videoplattenaufzeichnungs- /再现装置的压缩/视频信号的解压缩的装置。

    公开(公告)号：EP0644692A3

    公开(公告)日：1996-07-03

    申请号：EP94113521.2

    申请日：1994-08-30

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Hirayama, Koichi ,  Miyano, Yuichi

    IPC分类号： H04N5/926

    CPC分类号： H04N9/8227 ,  G11B20/18 ,  G11B27/034 ,  G11B27/10 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/34 ,  G11B2220/2562 ,  H04N5/602 ,  H04N5/781 ,  H04N5/783 ,  H04N5/85 ,  H04N5/9206 ,  H04N5/926 ,  H04N5/9262 ,  H04N5/9267 ,  H04N5/93 ,  H04N9/8042 ,  H04N9/8045 ,  H04N9/8063 ,  H04N21/42646 ,  H04N21/4307 ,  H04N21/4325 ,  H04N21/47217

    摘要： An apparatus for generating compressed signals, which can serve to record data with high efficiency, to manage data easily, to reproduce programs in a special manner, to search for data at high speed, and to achieve accurate image-speech synchronization. The apparatus comprises a video-data grouping device (103) for processing video data into groups, each consisting of a predetermined number of video data items corresponding to image frames, a video-data compressing device (106) for compressing and encoding the video data items of each group, an audio-data grouping device (102) for processing audio data corresponding to the video data into groups, each group consisting of audio data items, an audio-data compressing device (105) for compressing and encoding the audio data items of each group, a sub-video data grouping device (104) for processing sub-video data into groups, each consisting of sub-video data items, a sub-video data compressing device (107) for compressing and encoding the sub-video data items of each group, a formatter (108) for combining the groups of compressed video data items, the groups of compressed audio data items and the groups of compressed sub-video data items, thereby generating a data unit, data-separating device (121) for separating the compressed data items, a speech decoder (122) for decoding the encoded video data items, an image decoder (123) for decoding the encoded video data items, a sub-image decoder (124) for decoding the encoded sub-video data items, and a synthesizing device combines the decoded video data items with the decoded sub-video data items.

    One-way data conversion apparatus and device
    9.
    发明公开
    One-way data conversion apparatus and device 失效
    装置和设备的单向数据变换

    公开(公告)号：EP0840480A3

    公开(公告)日：2000-10-25

    申请号：EP97308783.6

    申请日：1997-10-31

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Tatebayashi, Makoto ,  Matsuzaki, Natsume ,  Hirayama, Koichi

    IPC分类号： H04L9/32

    CPC分类号： H04L9/3271 ,  H04L9/0625 ,  H04L2209/043 ,  H04L2209/12 ,  H04L2209/60

    摘要： The verifier apparatus 50 includes a random number generation unit 51 that generates a 2n-bit random number, a separator unit 52 that separates the random number into two sets of n-bit data, a data conversion module 53 that converts one set of separated data using the other set of separated data as a key, and a comparator unit 54 that judges whether the converted result matches claimant data sent back from the claimant apparatus 60. The claimant apparatus 60 includes a separator unit 61 and a data conversion module 62 that have the same functions as the separator unit 52 and the data conversion module 53 in the verifier apparatus 50. The claimant apparatus 60 generates n-bit claimant data from the 2n-bit random number generated by the verifier apparatus 50, and sends the generated claimant data to the verifier apparatus 50.

    Multi-scene recording medium and method and apparatus for reproducing data therefrom
    10.
    发明公开
    Multi-scene recording medium and method and apparatus for reproducing data therefrom 失效
    为多场面，和方法和装置，用于再现数据从中的记录媒体

    公开(公告)号：EP0836192A1

    公开(公告)日：1998-04-15

    申请号：EP97121675.9

    申请日：1993-10-29

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Hirayama, Koichi ,  Nakai, Masatoshi ,  Shimoda, Kenji

    IPC分类号： G11B27/10 ,  G11B27/32 ,  G11B20/12 ,  G11B19/02 ,  G11B27/34 ,  G09B5/06 ,  H04N5/85 ,  H04N5/92 ,  H04N9/82

    CPC分类号： G11B19/02 ,  G09B5/06 ,  G11B7/0037 ,  G11B19/022 ,  G11B20/00086 ,  G11B20/1217 ,  G11B20/1254 ,  G11B27/10 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/2562 ,  H04N5/781 ,  H04N5/85 ,  H04N5/9205 ,  H04N5/9206 ,  H04N5/9208 ,  H04N5/9267 ,  H04N9/8042 ,  H04N9/806 ,  H04N9/8063 ,  H04N9/8087 ,  H04N9/8205 ,  H04N9/8227 ,  H04N9/877

    摘要： A multi scene recording disk medium on which user information is stored in a specific structure and a reproducing apparatus and method for such medium, which enable a user to selectand switch via a menu between simultaneously proceeding scenes and also enable a program editor to edit programs in a new concept and manner. On the medium multi-scene user information program data representing the scenes is divided into a plurality of program bars, each bar containing consecutive user information program data items comprising frames of video data, the bars being consecutive or interchangeable. The program bars are recorded in a data area of the disk and program bars representing interchangeable user information program data items form a group of program bars. Multi-scene configuration information defining reproduction sequences of program bars and groups of program bars of interchangeable user information program data items is recorded in a management area of the disk, so as to enable the user to switch between program bars being defined to be interchangeable The last frame of video data of a program bar defined in the reproduction sequence to be reproduced preceding a group of program bars of interchangeable user information program data items contains a menu information indicating user selectable information program data items of said group of program bars.

    摘要翻译： 在其上的用户信息的多场面记录磁盘介质被存储在一个特定的结构和用于求介质的重放装置和方法，其使得用户能够经由菜单同时继续场景之间selectand开关，从而使一个程序编辑器编辑程序在 一个新的概念和方式。 在介质多场面用户信息程序表示场景数据被划分成的程​​序条复数，每个条含有包含视频数据的帧的连续用户信息的程序的数据项，所述棒是连续的或可互换的。 程序条记录在可互换的代表用户信息的节目数据项的磁盘和程序栏的数据区形成的一组程序条。 多场景构成信息限定的程序条和被记录在光盘的管理区可互换的用户信息的节目数据项的程序条组再现的序列，以便使用户能够程序杆之间切换被定义为可互换的 在再现序列中定义的节目栏的视频数据的负载帧要被重现preceding-一组可更换用户信息的程序的数据项的程序条包含一个菜单信息指示所述组的节目栏的用户可选择的信息programdata项。