公开(公告)号：US20070165997A1

公开(公告)日：2007-07-19

申请号：US10584619

申请日：2004-12-27

申请人： Hidekazu Suzuki ,  Yutaka Nio ,  Masazumi Yamada

发明人： Hidekazu Suzuki ,  Yutaka Nio ,  Masazumi Yamada

IPC分类号： H04N5/91

CPC分类号： H04B1/202 ,  G08C17/00 ,  H04N5/4403 ,  H04N21/42221 ,  H04N21/43615 ,  H04N21/4363 ,  H04N21/43635

摘要： When the HPD (104b) which indicated that the transmission of a control signal between the data receiving apparatus (102) and the control signal receiving apparatus (101) has become possible is detected, the command judging section (115) ignores the first reception command which it directly received from the remote controller (103) and makes the second reception command (112a) effective which it receives via the CEC line (104a). In such a construction, it is possible to conduct a remote control operation normally without affecting unfavorable influences on the apparatuses.

摘要翻译： 当指示在数据接收装置（102）和控制信号接收装置（101）之间传输控制信号已成为可能的HPD（104b）被检测到时，命令判断部分（115）忽略第一接收 命令，其直接从遥控器（103）接收，并且使得经由CEC线（104a）接收的第二接收命令（112a）有效。 在这种结构中，可以正常进行遥控操作而不影响对设备的不利影响。

公开(公告)号：US06834111B1

公开(公告)日：2004-12-21

申请号：US09445052

申请日：1999-12-01

申请人： Takuya Nishimura ,  Hiroyuki Iitsuka ,  Masazumi Yamada ,  Shoichi Gotoh ,  Hideaki Takechi

发明人： Takuya Nishimura ,  Hiroyuki Iitsuka ,  Masazumi Yamada ,  Shoichi Gotoh ,  Hideaki Takechi

IPC分类号： H04L900

CPC分类号： H04H20/69 ,  H04L9/0822 ,  H04L9/0891 ,  H04L2209/60

摘要： A data transmitting and receiving method for improving transmission and reception efficiency can be obtained by improving the security through update of a control key and reduction of the frequency of the authentication and key exchange process. An STB 1 transmits encrypted digital data Kw (D) obtained by encrypting digital data D using a work key Kw, and an encrypted work key Kc (Kw) obtained by encrypting the Kw using a control key Kc. The Kc is periodically or non-periodically updated, and an identifier L identifying the Kc is assigned to each Kc. A VTR device 2 decrypts the received Kc (Kw) using the Kc obtained by performing the authentication and key exchange process with the STB 1, decrypts the Kw (D) received using the Kw to obtain the D. It is determined whether or not the Kc has been updated while the reception process is suspended by referring to the transmitted L when the reception process is suspended and then resumed. If it is determined that the Kc has been updated, then the authentication and key exchange process is performed again to obtain the updated Kc.

摘要翻译： 通过更新控制密钥和降低认证和密钥交换过程的频率来提高安全性，可以获得提高发送和接收效率的数据发送和接收方法。 机顶盒1通过使用工作密钥Kw加密数字数据D获得的加密数字数据Kw（D）和通过使用控制密钥Kc加密Kw获得的加密工作密钥Kc（Kw）。 定期或不定期地更新Kc，并且向每个Kc分配标识Kc的标识符L. VTR设备2使用通过执行与STB 1的认证和密钥交换处理获得的Kc来解密接收的Kc（Kw），解密使用Kw接收到的Kw（D）以获得D。确定是否 当停止接收处理并且然后恢复时，通过参考发送的L来暂停接收处理的Kc。 如果确定Kc已被更新，则再次执行认证和密钥交换处理以获得更新的Kc。

公开(公告)号：US06769034B1

公开(公告)日：2004-07-27

申请号：US09744078

申请日：2001-03-20

申请人： Takahiko Nanko ,  Yoshifumi Yanagawa ,  Hiroyuki Iitsuka ,  Masazumi Yamada

发明人： Takahiko Nanko ,  Yoshifumi Yanagawa ,  Hiroyuki Iitsuka ,  Masazumi Yamada

IPC分类号： G06F300

CPC分类号： H04N21/43615 ,  H04L12/40117 ,  H04L69/08 ,  H04N5/765 ,  H04N21/4622

摘要： The present invention relates to an AV network construction apparatus A, comprising: a 1394 link 10 for connecting lines employing an interface of IEEE1394 standard, an information receiving/transmitting means 11, a protocol processing means 12, a virtual device function processing means 20, an integration management means 30 for activating or terminating the virtual device function processing means 20, an OS 40 for activating a pc 103, and a PC device driver 50 for activating a peripheral device M, and a method for constructing such a virtual AV network construction, and a recording medium containing a program concerning the virtual AV network construction method.

摘要翻译： 本发明涉及一种AV网络构造装置A，其特征在于，包括：1394连接线10，用于连接采用IEEE1394标准的接口的线路，信息接收/发送装置11，协议处理装置12，虚拟装置功能处理装置20， 用于激活或终止虚拟设备功能处理装置20的集成管理装置30，用于激活pc103的OS40和用于激活外围设备M的PC设备驱动器50以及用于构建这样的虚拟AV网络构造的方法 以及包含有关虚拟AV网络构建方法的程序的记录介质。

公开(公告)号：US06684210B1

公开(公告)日：2004-01-27

申请号：US09647791

申请日：2000-11-29

申请人： Hideaki Takechi ,  Hiroyuki Iitsuka ,  Masazumi Yamada ,  Natsume Matsuzaki

发明人： Hideaki Takechi ,  Hiroyuki Iitsuka ,  Masazumi Yamada ,  Natsume Matsuzaki

IPC分类号： G06F1730

CPC分类号： G06F21/6218 ,  G06F21/10 ,  G06F2221/0706 ,  G06F2221/2117 ,  G06F2221/2129 ,  G06F2221/2135 ,  G06F2221/2141 ,  Y10S707/99939

摘要： In the conventional file management system, there is a problem that even a file assigned permission information can be processed without considering any permission information. Therefore, the system includes a first accumulation device 2 for accumulating files to which permission information is added, and a new file management apparatus 7 for performing an input/output process on files with a request for a process from the application A 10 accessing the file management system taken into account according to the permission information added to the file. The new file management apparatus 7 compares the permission information added to the file in the first accumulation device 2 with the request contents of the process for the file from the application A 10, determines whether or not the process can be performed on the file, inputs the file from the first accumulation device 2 based on the result, and outputs it to the application A 10.

摘要翻译： 在传统的文件管理系统中，存在即使在不考虑任何许可信息的情况下也可以处理分配了许可信息的文件的问题。 因此，系统包括用于累加添加了许可信息的文件的第一存储装置2和用于对来自应用程序A 10访问文件的处理请求执行对文件的输入/输出处理的新文件管理装置7 根据添加到该文件的权限信息考虑管理系统。 新的文件管理装置7将添加到第一累积装置2中的文件的许可信息与来自应用程序A 10的文件的处理的请求内容进行比较，确定是否可以对文件执行处理，输入 基于结果从第一累积装置2获取文件，并将其输出到应用程序A 10。

公开(公告)号：US06567421B2

公开(公告)日：2003-05-20

申请号：US09997512

申请日：2001-11-29

申请人： Hidetoshi Takeda ,  Hiroyuki Iitsuka ,  Takuya Nishimura ,  Masazumi Yamada

发明人： Hidetoshi Takeda ,  Hiroyuki Iitsuka ,  Takuya Nishimura ,  Masazumi Yamada

IPC分类号： H04J310

CPC分类号： H04L12/40058 ,  H04L12/40 ,  H04L12/40065 ,  H04L12/40071 ,  H04L12/40078 ,  H04L12/403 ,  H04L12/6418 ,  H04L41/0896 ,  H04L47/10 ,  H04L47/13 ,  H04L47/22 ,  H04L47/2416 ,  H04L47/28 ,  H04L47/36 ,  H04L47/70 ,  H04N21/23602 ,  H04N21/2381 ,  H04N21/2402 ,  H04N21/4147 ,  H04N21/4342 ,  H04N21/43632 ,  H04N21/44231

摘要： It is objected to simplify a procedure concerning bandwidth acquisition. Bandwidth acquiring means 809 of a second transmitting apparatus 814 acquires a bandwidth which was used by a first transmitting apparatus 806 by using a propagation delay identifier 804 read from first transmitting apparatus 806 and a maximum transmission data size 805 after stopping transmission of first transmitting apparatus 806. Each apparatus is composed so that transmission is started using this bandwidth and because returning and re-acquisition are not accompanied when the transmission is switched, necessary procedure can be simplified. Further, it is possible to effectively use the bandwidth by using a propagation delay identifier.

公开(公告)号：US06463151B1

公开(公告)日：2002-10-08

申请号：US09182568

申请日：1998-10-29

申请人： Hiroyuki Iitsuka ,  Masazumi Yamada ,  Hideaki Takechi ,  Natsume Matsuzaki

发明人： Hiroyuki Iitsuka ,  Masazumi Yamada ,  Hideaki Takechi ,  Natsume Matsuzaki

IPC分类号： H04L900

CPC分类号： H04L63/0428 ,  H04L12/40058 ,  H04L12/40071 ,  H04L12/40104

摘要： The data transmission system can substantially prohibit illegal copy of real data since the encryption key applied to transmitted data is changed depending on copy management information, thereby the real data being decrypted and recorded with a key different from the original key when the copy management information is tampered. Thus, the transmitted data can be further securely protected than in the prior art.

摘要翻译： 由于应用于发送数据的加密密钥根据复制管理信息而改变，因此数据传输系统可以基本上禁止非法复制实际数据，从而当拷贝管理信息为 被篡改 因此，与现有技术相比，可以进一步安全地保护所发送的数据。

公开(公告)号：US6018609A

公开(公告)日：2000-01-25

申请号：US912344

申请日：1997-08-18

申请人： Masazumi Yamada ,  Akira Iketani

发明人： Masazumi Yamada ,  Akira Iketani

IPC分类号： H04N5/78 ,  G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/11 ,  G11B27/32 ,  G11B27/34 ,  H04N5/91 ,  H04N5/92 ,  H04N5/926

CPC分类号： G11B27/326 ,  G11B27/107 ,  G11B27/11 ,  G11B27/322 ,  G11B27/328 ,  H04N5/9264 ,  G11B2220/65 ,  G11B2220/90 ,  G11B27/34 ,  H04N5/9201

摘要： In a compressed signal recording and reproducing apparatus, a table-of-contents generator extracts user selected representative frames from among frames of an input compressed television signal that can be identified by specified additional information, and generates table-of-contents data representing contents of a specified number of the user selected representative frames. A recording signal processor arranges the input compressed television signal, table-of-contents data, and positional information relating to positions for recording the individual user selected representative frames data, respectively, at specified positions of the recording medium. The apparatus further includes a reproduction signal processor for outputting table-of-contents data recorded at a specified position in the recording medium for exhibiting contents of a plurality of user selected representative frames, from among the reproduction data.

摘要翻译： 在压缩信号记录和再现装置中，内容表生成器从可以通过指定附加信息识别的输入压缩电视信号的帧中提取用户选择的代表帧，并生成表示内容的内容数据 指定数量的用户选择的代表帧。 记录信号处理器分别将输入的压缩电视信号，目录数据和与用于记录各个用户选择的代表帧数据的位置有关的位置信息分别布置在记录介质的指定位置。 该装置还包括再现信号处理器，用于从再现数据中输出记录在记录介质中的指定位置的内容数据，以呈现多个用户选择的代表帧的内容。

公开(公告)号：US5394190A

公开(公告)日：1995-02-28

申请号：US76425

申请日：1993-06-14

申请人： Masazumi Yamada

发明人： Masazumi Yamada

IPC分类号： H04N7/32 ,  G06T9/00 ,  H04N7/36 ,  H04N7/46 ,  H04N7/50 ,  H04N7/133 ,  H04N7/137

CPC分类号： H04N19/577 ,  H04N19/503 ,  H04N19/61

摘要： A field to be encoded is divided into blocks. Then, first, second, and third motion vectors relative to data of a block of the field to be encoded are calculated from data of an m-th preceding field (m: even), data of an n-th preceding field (n: odd), and data of an interpolated image produced from the n-th preceding field. First, second, and third prediction signals are produced from the first motion vector and the m-th preceding field data, the second motion vector and the n-th preceding field data, and the third motion vector and the interpolated image data, respectively. In succession, a first difference signal between the first prediction signal and the block data to be encoded, a second difference signal between the second prediction signal and the block data to be encoded, and a third difference signal between the third prediction signal and the block data to be encoded are calculated and compared each other. As a result of comparison, one of the first, second, and third difference signals is selected and encoded.

摘要翻译： 要编码的字段被划分为块。 然后，根据第m个前一个字段（m：偶数）的数据计算相对于要编码的字段的数据块的第一，第二和第三运动向量，第n个前一个字段（n： 奇数）以及从第n个前一个场产生的内插图像的数据。 第一，第二和第三预测信号分别从第一运动矢量和第m前一场数据，第二运动矢量和第n前一场数据以及第三运动矢量和内插图像数据产生。 接着，第一预测信号和要编码的块数据之间的第一差分信号，第二预测信号和要编码的块数据之间的第二差分信号，以及第三预测信号和块之间的第三差分信号 要编码的数据被计算并相互比较。 作为比较的结果，选择并编码第一，第二和第三差分信号之一。