Control for global transport data stream
    2.
    发明专利
    Control for global transport data stream 有权
    全球运输数据流控制

    公开(公告)号:JP2004312772A

    公开(公告)日:2004-11-04

    申请号:JP2004171930

    申请日:2004-06-09

    Abstract: PROBLEM TO BE SOLVED: To provide a means for enabling a local-cable head-end operator to deliver the national programming service data while a subscriber for the data controls the access. SOLUTION: Video and audio data are prepared in the form of a packetized elementary stream having a header, a presentation time stamp, and the video itself. The packetized elementary stream is allocated into the payload section of one or more transport packets. Transport packets are usually 188 bits in length herein and include a synchronization block and prefix data followed by the payload data. The multiplex/encryptor (64) combines individual transport packets (62) into a frame of data (60). COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种使本地电缆头端运营商能够提供国家编程服务数据的手段,而数据的用户控制访问。 解决方案:视频和音频数据以具有报头,呈现时间戳和视频本身的分组化基本流的形式准备。 分组化的基本流被分配到一个或多个传输分组的有效载荷部分中。 传输分组在本文中的长度通常为188位,并且包括跟随有效载荷数据的同步块和前缀数据。 复用/加密器(64)将单个传输分组(62)组合成数据帧(60)。 版权所有(C)2005,JPO&NCIPI

    Authentication of service in conditional access system
    4.
    发明专利
    Authentication of service in conditional access system 审中-公开
    条件访问系统服务认证

    公开(公告)号:JP2009273151A

    公开(公告)日:2009-11-19

    申请号:JP2009188752

    申请日:2009-08-17

    Abstract: PROBLEM TO BE SOLVED: To provide a cable TV system which provides conditional access to services. SOLUTION: This cable TV system includes a head end from which service "instances" or programs are broadcasted and a plurality of set-top units which receive the instances and selectively decrypt the instances in order to display them for a system subscriber. The service instances are encrypted by using public keys and/or private keys provided by a service provider or a center authority agent. The keys used by the set top for selective decryption may also have a public or secret characteristic. These keys are allocated again at different points of time. Thus, the cable TV system in which the risk of infringement activities is minimized is provided. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种有条件访问服务的有线电视系统。 解决方案:该有线电视系统包括一个头端,广播服务“实例”或程序,以及多个机顶单元,其接收实例并选择性地解密实例以便为系统用户显示它们。 服务实例通过使用由服务提供商或中心机构代理提供的公钥和/或私钥进行加密。 用于选择性解密的机顶盒使用的密钥也可以具有公共或秘密特征。 这些键在不同的时间点再次被分配。 因此,提供了将侵权活动风险降至最低的有线电视系统。 版权所有(C)2010,JPO&INPIT

    Graphical indication of selected cell within interactive program guide
    5.
    发明专利
    Graphical indication of selected cell within interactive program guide 审中-公开
    交互式程序指南中选择的单元的图形指示

    公开(公告)号:JP2006340356A

    公开(公告)日:2006-12-14

    申请号:JP2006148944

    申请日:2006-05-29

    CPC classification number: H04N5/44543 G06F3/0482 H04N21/4314 H04N21/4821

    Abstract: PROBLEM TO BE SOLVED: To provide a method for facilitating a difficulty, caused by the number of selections increasing in an EPG, and to determine which item is selectable for partial users.
    SOLUTION: An electronic program guide (EPG) has a variable indicator (40, 50, 60, 70) to focus a user's attention upon a corresponding field of a selectable program instance (30, 52, 62, 74). The EPG includes a user interface screen (10) for providing a plurality of television program instances by time and channel in a grid menu. Each television program becomes selectable from the EPG based upon user interaction. The indicator is configured based upon attributes of the currently selectable program instance.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种由EPG中增加的选择数量引起的便于困难的方法,并且确定哪些项目是为部分用户选择的。 解决方案:电子节目指南(EPG)具有可变指示符(40,50,60,70),以将用户的注意力集中在可选节目实例(30,52,62,74)的相应字段上。 EPG包括用于通过时间和频道在网格菜单中提供多个电视节目实例的用户界面屏幕(10)。 基于用户交互,每个电视节目可从EPG中选择。 该指示符是基于当前可选程序实例的属性配置的。 版权所有(C)2007,JPO&INPIT

    Encryption device used in a conditional access system
    6.
    发明专利
    Encryption device used in a conditional access system 审中-公开
    在条件访问系统中使用的加密设备

    公开(公告)号:JP2005218143A

    公开(公告)日:2005-08-11

    申请号:JP2005120426

    申请日:2005-04-18

    Abstract: PROBLEM TO BE SOLVED: To provide a cable television system providing conditional access to a service. SOLUTION: The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting these instances for display to system subscribers. The service instances are encrypted, by using public and/or private keys provided by service providers or central authorization agents. Keys, used by the set tops for selective decryption may also be public or private in nature, and these keys may be reassigned at different times, to provide a cable television system in which the anxiety for violation actions is minimized. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种提供有条件访问服务的有线电视系统。 解决方案:有线电视系统包括广播服务“实例”或节目的头端,以及用于接收实例的多个机顶单元,并选择性地解密这些实例以供系统用户显示。 服务实例通过使用由服务提供商或中央授权代理提供的公共和/或私钥进行加密。 用于选择性解密的机顶盒的密钥也可以是公共的或私有的,并且这些密钥可以在不同的时间重新分配,以提供一种有线电视系统,其中违反行为的焦虑被最小化。 版权所有(C)2005,JPO&NCIPI

    COMPATIBILITY OF WIDE-SCREEN TELEVISION TRANSMISSION WITH NON-WIDE-SCREEN TELEVISION TRANSMISSION

    公开(公告)号:JPH09327001A

    公开(公告)日:1997-12-16

    申请号:JP4355397

    申请日:1997-02-27

    Abstract: PROBLEM TO BE SOLVED: To transmit a wide-screen TV signal to be displayed in wide-screen and non-wide-screen receivers without introducing a geometrical distortion by utilizing a selecting signal and displaying the selected part of a wide-screen picture of the standard receiver. SOLUTION: Luminance data is written in a luminance line storage device 402 in sampling frequency and read in lower frequency. In a same way, color data is written in a color line storage device 406 by the sampling frequency and read by the lower frequency. While one line storage device 404 (408) is read, the other line storage device 402 (406) is written. Then, the wide-screen TV signalis monitored before transmission and an operator selects the center of interest so as to generate the picture and the signal to be transmitted. A controller 415 receives data including the selecting signal, reproduces the selecting signal and transmits residual data to the TV receiver.

    Threshold detecting circuit
    9.
    发明专利
    Threshold detecting circuit 审中-公开
    阈值检测电路

    公开(公告)号:JP2009183143A

    公开(公告)日:2009-08-13

    申请号:JP2009121453

    申请日:2009-05-19

    Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for switching to a back-up power source. SOLUTION: One such system includes a threshold detector circuit (102), a first switching circuit (108-2) for enabling access to a first power source , the first switching circuit comprising at least a first transistor, and a second switching circuit (108-1) for enabling access to a second power source, the second switching circuit comprising at least a second transistor, wherein a threshold detector is configured to enable the second switching circuit to access the second power source responsive to a voltage provided by the first power source dropping below a predetermined threshold. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供用于切换到备用电源的系统和方法。 解决方案:一种这样的系统包括阈值检测器电路(102),用于允许访问第一电源的第一开关电路(108-2),第一开关电路至少包括第一晶体管和第二开关 电路(108-1),用于使得能够访问第二电源,所述第二开关电路至少包括第二晶体管,其中阈值检测器被配置为使得所述第二开关电路能够响应于由 第一电源降低到预定阈值以下。 版权所有(C)2009,JPO&INPIT

    Encryption apparatus used in conditional access system
    10.
    发明专利
    Encryption apparatus used in conditional access system 审中-公开
    在条件访问系统中使用的加密设备

    公开(公告)号:JP2009124736A

    公开(公告)日:2009-06-04

    申请号:JP2009008204

    申请日:2009-01-16

    Abstract: PROBLEM TO BE SOLVED: To provide a cable television system which provides conditional access to services. SOLUTION: The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting the instances for display to system subscribers. The service instances are encrypted using public and/or private keys provided by service providers or central authorization agents. Key used by the set tops for selective decryption may also be public or private in nature, and such keys may be reassigned at different times to provide a cable television system in which piracy concerns are minimized. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种提供条件访问服务的有线电视系统。 解决方案:有线电视系统包括广播服务“实例”或节目的头端,以及用于接收实例的多个机顶单元,并选择性地解密实例以供系统用户显示。 服务实例使用由服务提供商或中央授权代理提供的公共和/或私钥进行加密。 用于选择性解密的机顶上使用的密钥也可以是公共的或私有的,并且这些密钥可以在不同的时间被重新分配,以提供最小化盗版问题的有线电视系统。 版权所有(C)2009,JPO&INPIT

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