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    Copyright protection system for data storage and transmission
    7.
    发明授权
    Copyright protection system for data storage and transmission 有权
    版权保护系统，用于数据存储和传输

    公开(公告)号：US07239703B2

    公开(公告)日：2007-07-03

    申请号：US10917489

    申请日：2004-08-13

    申请人： Seiji Higurashi ,  Takayuki Sugahara

    发明人： Seiji Higurashi ,  Takayuki Sugahara

    IPC分类号： H04N7/167

    CPC分类号： H04L12/40104 ,  H04L12/40117 ,  H04N5/913 ,  H04N9/8042 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/91364

    摘要： The invention provides a recording media player and a recording media recorder provided with a high-security copy protection system of less complexity. A recording media player and/or recorder provided with a copy protection system stubborn to attacks and highly flexible in dealing with recording media of various copy conditions. For this purpose, various distributed copyright protection information (DCPI) values are used. The DCPI values include water marks in case of an MPEG stream, Copy Generation Management System (CGMS) codes, EMI (encryption mode indicator) in case of an IEEE1394-1995 interface, and user defined DCPI values. The recording is achieved such that DCPI values are recorded in user-unrewritable (or user-inaccessible) areas of the recording medium as long as possible.

    摘要翻译： 本发明提供一种具有较低复杂度的高安全性复制保护系统的记录媒体播放器和记录媒体记录器。 一种记录媒体播放器和/或记录器，该记录媒体播放器和/或记录器具有顽固的攻击和高灵活性的复制保护系统，以处理各种复制条件的记录介质。 为此，使用各种分布式版权保护信息（DCPI）值。 DCPI值包括在MPEG流的情况下的水印，在IEEE1394-1995接口的情况下的复制生成管理系统（CGMS）代码，EMI（加密模式指示符））和用户定义的DCPI值。 实现记录，使得DCPI值尽可能长地记录在记录介质的用户不可重写（或用户不可访问的）区域中。

    Information transmission system, and information sending apparatus and information receiving apparatus used therein
    8.
    发明授权
    Information transmission system, and information sending apparatus and information receiving apparatus used therein 有权
    信息传输系统以及其中使用的信息发送装置和信息接收装置

    公开(公告)号：US07124434B2

    公开(公告)日：2006-10-17

    申请号：US10869847

    申请日：2004-06-18

    申请人： Seiji Higurashi

    发明人： Seiji Higurashi

    IPC分类号： G06F7/04

    CPC分类号： H04L9/0869 ,  H04L9/0844 ,  H04L9/12

    摘要： A receiver sends a first random number to a transmitter. The transmitter generates a sync signal in response to the first random number sent from the receiver. The transmitter embeds the sync signal and key information in a second random number to generate a composite signal. In the composite signal, the sync signal is a position indicator for the key information. The transmitter sends the composite signal to the receiver. The transmitter generates an encryption key from the key information. The receiver detects the sync signal in the composite signal sent from the transmitter. The receiver extracts the key information from the composite signal in response to the detected sync signal. The receiver generates an encryption key from the extracted key information. The encryption key generated by the receiver is equal to that generated by the transmitter. Thus, the transmitter and the receiver hold the same encryption key in common.

    摘要翻译： 接收机向发射机发送第一个随机数。 发射机响应于从接收机发送的第一随机数生成同步信号。 发射机将同步信号和密钥信息嵌入第二随机数，以产生复合信号。 在复合信号中，同步信号是密钥信息的位置指示符。 发射机将复合信号发送到接收机。 发射机从密钥信息生成加密密钥。 接收机检测从发射机发送的复合信号中的同步信号。 接收机响应于检测到的同步信号从复合信号中提取密钥信息。 接收机从所提取的密钥信息生成加密密钥。 由接收机产生的加密密钥等于由发射机产生的加密密钥。 因此，发射机和接收机保持相同的加密密钥。

    Information recording apparatus, information reproducing apparatus, and related computer programs
    9.
    发明申请
    Information recording apparatus, information reproducing apparatus, and related computer programs 有权
    信息记录装置，信息再现装置和相关计算机程序

    公开(公告)号：US20060159430A1

    公开(公告)日：2006-07-20

    申请号：US11324539

    申请日：2006-01-04

    申请人： Takayuki Sugahara ,  Seiji Higurashi ,  Takashi Kuriyama ,  Terumi Ohara ,  Namio Yamaguchi

    发明人： Takayuki Sugahara ,  Seiji Higurashi ,  Takashi Kuriyama ,  Terumi Ohara ,  Namio Yamaguchi

    IPC分类号： H04N5/91

    CPC分类号： H04N5/772 ,  H04N9/8042 ,  H04N9/8227

    摘要： Pictures are captured, and thereby moving-picture data is generated which represents a sequence of moving-picture fields. At least one picture is captured, and thereby still-picture data is generated which represents at least one still-picture frame corresponding in picture capture timing to one of the moving-picture fields represented by the moving-picture data. Components which correspond to said one of the moving-picture fields are removed from the still-picture data to generate supplementary still-picture information. Link information is generated which represents the picture capture timing correspondence between the still-picture frame and said one of the moving-picture fields. The moving-picture data, the supplementary still-picture information, and the link information are recorded on a recording medium.

    摘要翻译： 拍摄图像，从而生成表示运动图像场序列的运动图像数据。 拍摄至少一张照片，从而生成表示与图像拍摄定时对应的至少一个静止图像帧到静止图像数据的静止图像数据到由运动图像数据表示的运动图像场之一。 对应于所述运动图像场之一的组件从静止图像数据中去除以产生补充静态图像信息。 产生表示静止图像帧和所述运动图像场之一中的图像捕获定时对应关系的链接信息。 运动图像数据，辅助静止图像信息和链接信息被记录在记录介质上。

    Information recording apparatus, information reproducing apparatus, and related computer programs
    10.
    发明申请
    Information recording apparatus, information reproducing apparatus, and related computer programs 有权
    信息记录装置，信息再现装置和相关计算机程序

    公开(公告)号：US20060159429A1

    公开(公告)日：2006-07-20

    申请号：US11324514

    申请日：2006-01-04

    申请人： Takayuki Sugahara ,  Seiji Higurashi

    发明人： Takayuki Sugahara ,  Seiji Higurashi

    IPC分类号： H04N5/91

    CPC分类号： H04N9/8205 ,  G11B20/1217 ,  G11B27/28 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/34 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H04N5/772 ,  H04N5/775 ,  H04N5/85 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/8047 ,  H04N9/8063 ,  H04N9/8227 ,  H04N21/23614 ,  H04N21/4223 ,  H04N21/4334 ,  H04N21/4348 ,  H04N21/8153 ,  H04N21/816

    摘要： Pictures are successively captured, and thereby moving-picture data representing a stream of moving pictures is generated. At least one picture is captured, and thereby still-picture data representing at least one still picture is generated. The still picture corresponds in picture capture timing to first one of the moving pictures. Link information is generated which represents the correspondence in picture capture timing between the still picture and the first one of the moving pictures. Offset information is generated. The offset information designates a second one of the moving pictures which precedes the first one of the moving pictures by a prescribed time interval. Correspondence information is generated which includes a pair of the link information and the offset information. The moving-picture data, the still-picture data, and the correspondence information are recorded on a recording medium.

    摘要翻译： 依次拍摄图像，从而生成表示运动图像流的运动图像数据。 捕获至少一张照片，从而生成表示至少一张静止图像的静止图像数据。 静止图像在图像捕获定时对应于第一个运动图像。 产生链接信息，其表示静止图像和第一个运动图像之间的图像捕获定时的对应关系。 产生偏移信息。 偏移信息以规定的时间间隔指定在运动图像中的第一个之前的运动图像中的第二个运动图像。 产生包括一对链接信息和偏移信息的对应信息。 运动图像数据，静止图像数据和对应信息被记录在记录介质上。