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    Data transmitting/receiving method, data transmission apparatus, data reception apparatus, data transmission/reception system, AV contents transmitting method, AV contents receiving method, AV contents transmission apparatus, AV contents reception apparatus, and program recording medium
    22.
    发明授权
    Data transmitting/receiving method, data transmission apparatus, data reception apparatus, data transmission/reception system, AV contents transmitting method, AV contents receiving method, AV contents transmission apparatus, AV contents reception apparatus, and program recording medium 有权
    数据发送/接收方法，数据发送装置，数据接收装置，数据发送/接收系统，AV内容发送方法，AV内容接收方法，AV内容发送装置，AV内容接收装置和程序记录介质

    公开(公告)号：US07747016B2

    公开(公告)日：2010-06-29

    申请号：US10653763

    申请日：2003-09-03

    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： H04L9/16 ,  H04L9/14 ,  H04L9/12 ,  H04L9/08

    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。

    Extended elements and mechanisms for displaying a rich graphical user interface in panel subunit
    25.
    发明授权
    Extended elements and mechanisms for displaying a rich graphical user interface in panel subunit 有权
    用于在面板子单元中显示丰富的图形用户界面的扩展元素和机制

    公开(公告)号：US06556221B1

    公开(公告)日：2003-04-29

    申请号：US09585889

    申请日：2000-05-31

    申请人： Hisato Shima ,  Atsushi Suzuki ,  Takuya Nishimura

    发明人： Hisato Shima ,  Atsushi Suzuki ,  Takuya Nishimura

    IPC分类号： G09G500

    CPC分类号： H04L12/2805 ,  G05B19/0426 ,  G05B2219/25057 ,  G05B2219/25083 ,  G05B2219/25092 ,  G05B2219/25324 ,  H04L12/2803 ,  H04L12/282

    摘要： Methods for realizing advanced graphical user interface (GUI) in panel subunit. The present invention provides, in one embodiment, a button GUI element descriptor that defines a bitmap to be displayed when a button is out of focus and another bitmap to be displayed when the button is in focus. In another embodiment, the present invention provides a table GUI element descriptor that defines a table-like on screen display to be displayed on the contoller device. Another embodiment of the present invention provides a panel GUI element descriptor that includes a focused identifier attribute indicating a pre-determined element of the on-screen display as default focus. In this way, the target device would be able to control the default focus of the controller device when displaying an on-screen display. In yet another embodiment, the present invention provides a text GUI element descriptor that includes a font style attribute that dictates whether the text GUI element should be displayed as bold, underlined and/or reversed. By using these extended elements in panel subunit, more complicated and advanced GUI, such as an electronic programming guide (EPG) can be achieved.

    摘要翻译： 在面板子单元中实现高级图形用户界面（GUI）的方法。 本发明在一个实施例中提供了一种按钮GUI元素描述符，该按钮GUI元素描述符定义了当按钮失焦时要显示的位图，以及当按钮处于焦点时待显示的另一位图。 在另一个实施例中，本发明提供了一个表格GUI元素描述符，其定义要显示在轮廓器装置上的类似屏幕显示。 本发明的另一实施例提供一种面板GUI元素描述符，其包括指示屏幕显示的预定元素作为默认焦点的聚焦标识符属性。 以这种方式，当显示屏幕显示时，目标设备将能够控制控制器设备的默认焦点。 在另一个实施例中，本发明提供一种文本GUI元素描述符，其包括字体样式属性，其指示文本GUI元素是否应当以粗体，下划线和/或反转显示。 通过在面板子单元中使用这些扩展元件，可以实现更加复杂和先进的GUI，例如电子节目指南（EPG）。

    Receiving apparatus and data rewriting method
    26.
    发明授权
    Receiving apparatus and data rewriting method 有权
    接收设备和数据重写方法

    公开(公告)号：US06269421B1

    公开(公告)日：2001-07-31

    申请号：US09229199

    申请日：1999-01-13

    申请人： Takuya Nishimura

    发明人： Takuya Nishimura

    IPC分类号： G06F1200

    CPC分类号： H04N7/52

    摘要： A receiving apparatus and a data rewriting method which can rewrite data accurately. A rewriting means in the receiving apparatus receives predetermined second data transmitted from a transmitting side, obtains a predetermined first fixed value based on the received second data, compares the obtained first fixed value to a second fixed value given from an external source via a predetermined medium, and when the first and second fixed values are coincident with each other, rewrites the first data previously recorded rewritably in the recording medium with the second data. Thereby, it can be judged accurately whether the second data is correct data for rewriting the first data.

    摘要翻译： 一种可以准确地重写数据的接收装置和数据重写方法。 接收装置中的重写装置接收从发送侧发送的预定的第二数据，基于接收的第二数据获得预定的第一固定值，将所获得的第一固定值经由预定介质从外部源提供的第二固定值进行比较 ，并且当第一和第二固定值彼此一致时，用第二数据重写先前记录在记录介质中的第一数据。 由此，可以准确判断第二数据是否是用于重写第一数据的正确数据。

    CONTENT RECEIVER, LICENSE SERVER, CONTENT UTILIZATION SYSTEM, AND CONTENT VIEWING TIME LIMIT MANAGEMENT METHOD
    29.
    发明申请
    CONTENT RECEIVER, LICENSE SERVER, CONTENT UTILIZATION SYSTEM, AND CONTENT VIEWING TIME LIMIT MANAGEMENT METHOD 有权
    内容接收器，许可证服务器，内容使用系统和内容查看时间限制管理方法

    公开(公告)号：US20130019322A1

    公开(公告)日：2013-01-17

    申请号：US13611851

    申请日：2012-09-12

    申请人： Takuya NISHIMURA

    发明人： Takuya NISHIMURA

    IPC分类号： G06F21/24

    CPC分类号： G06F21/10

    摘要： A license receiver comprises a viewing license invalidating unit which invalidates a viewing license of a content a viewing time limit of which is not determined, and a first control unit. When the first control unit reproduces the content, (i) if the viewing license is valid, the first control unit determines the viewing time limit, and (ii) if the viewing license is invalid, the first control unit transmits a viewing license request including a request of determining viewing time limit, to the license server, and receives the determined viewing time from the license server. When the first control unit writes out the content to an exchangeable medium before reproducing the content, if the viewing license is valid, the first control unit invalidates the viewing license and writes out the non-determined viewing time limit to the exchangeable medium.

    摘要翻译： 许可证接收机包括观看许可证无效单元，其使未被确定的观看时间限制的内容的观看许可证无效，以及第一控制单元。 当第一控制单元再现内容时，（i）如果观看许可证有效，则第一控制单元确定观看时间限制，以及（ii）如果观看许可证无效，则第一控制单元发送包括 向许可证服务器发送确定观看时间限制的请求，并从许可证服务器接收确定的观看时间。 当第一控制单元在再现内容之前将内容写入可交换介质时，如果查看许可证有效，则第一控制单元使查看许可证无效并将不确定的观看时间限制写入可交换介质。

    CONTENT RECEIVER, CONTENT UTILIZATION SYSTEM, VIEWING TIME LIMIT DETERMINATION METHOD, PROGRAM, AND RECORDING MEDIUM
    30.
    发明申请
    CONTENT RECEIVER, CONTENT UTILIZATION SYSTEM, VIEWING TIME LIMIT DETERMINATION METHOD, PROGRAM, AND RECORDING MEDIUM 有权
    内容接收器，内容使用系统，查看时间限制测定方法，程序和记录介质

    公开(公告)号：US20110289594A1

    公开(公告)日：2011-11-24

    申请号：US13123994

    申请日：2010-11-17

    申请人： Ken-ichi Shibata ,  Takuya Nishimura

    发明人： Ken-ichi Shibata ,  Takuya Nishimura

    IPC分类号： G06F21/24

    CPC分类号： G06F21/00

    摘要： When a control unit of a content receiver causes to write out content to an exchangeable medium, causes to also write out a viewing license of the content to the exchangeable medium, and further causes an invalidating/validating unit to invalidate a viewing license of related content belonging to a same predetermined content group as the content if a viewing time limit of the content is not determined. When a content reproducer reproduces the content recorded in the exchangeable medium, determines the viewing time limit of the content and records it to the exchangeable medium. When the exchangeable medium which is reproduced by the content reproducer is installed, the control unit causes to set a viewing time limit of the related content to the same time limit as the viewing time limit of the content on the exchangeable medium and causes to validate the viewing license of the related content.

    摘要翻译： 当内容接收器的控制单元导致将内容写入可交换介质时，还导致将内容的查看许可证写入可交换介质，并且还使得无效/验证单元使相关内容的查看许可证无效 如果未确定内容的观看时间限制，则属于与内容相同的预定内容组。 当内容再现器再现记录在可交换介质中的内容时，确定内容的观看时间限制并将其记录到可交换介质。 当安装了由内容再现器再现的可更换介质时，控制单元使得相关内容的观看时间限制与可交换介质上的内容的观看时间限制相同的时间限制，并使得验证 查看相关内容的许可。