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    • 4. 发明申请
    • SMARTCARD ENCRYPTION CYCLING
    • 智能卡加密循环
    • US20130247090A1
    • 2013-09-19
    • US13828001
    • 2013-03-14
    • ECHOSTAR TECHNOLOGIES, LLC
    • David KummerGermar Schaefer
    • H04N21/418
    • H04N21/2347H04N7/1675H04N21/23895H04N21/26606H04N21/4181H04N21/4353H04N21/6143H04N21/631H04N21/6334H04N21/64715
    • Various arrangements for encrypting multiple television channels are presented. A first television channel of a plurality of television channels to be protected via a first entitlement control message (ECM) using a first encryption scheme may be designated. The plurality of television channels may be transmitted using a single transponder stream. A second television channel of the plurality of television channels to be protected via a second ECM encrypted using a second encryption scheme while the first television channel of the plurality of television channels is protected using the first encryption scheme may be designated. The first and second ECMs may be transmitted to a plurality of television receivers. Data from the first ECM may be used for descrambling of the first television channel by the plurality of television receivers. Data from the second ECM may be used for descrambling of the second television channel by the plurality of television receivers.
    • 提出了加密多个电视频道的各种安排。 可以指定通过使用第一加密方案的第一授权控制消息(ECM)来保护的多个电视频道的第一电视频道。 可以使用单个转发器流来发送多个电视频道。 可以指定在使用第一加密方案保护多个电视频道的第一电视频道的同时通过使用第二加密方案加密的第二ECM来保护的多个电视频道中的第二电视频道。 第一和第二ECM可以被发送到多个电视接收机。 来自第一ECM的数据可以用于多个电视接收机对第一电视频道的解扰。 来自第二ECM的数据可以用于多个电视接收机对第二电视频道的解扰。
    • 7. 发明授权
    • Smartcard encryption cycling
    • 智能卡加密循环
    • US08819722B2
    • 2014-08-26
    • US13828001
    • 2013-03-14
    • EchoStar Technologies, LLC
    • David KummerGermar Schaefer
    • H04N7/167H04N5/445H04N7/20
    • H04N21/2347H04N7/1675H04N21/23895H04N21/26606H04N21/4181H04N21/4353H04N21/6143H04N21/631H04N21/6334H04N21/64715
    • Various arrangements for encrypting multiple television channels are presented. A first television channel of a plurality of television channels to be protected via a first entitlement control message (ECM) using a first encryption scheme may be designated. The plurality of television channels may be transmitted using a single transponder stream. A second television channel of the plurality of television channels to be protected via a second ECM encrypted using a second encryption scheme while the first television channel of the plurality of television channels is protected using the first encryption scheme may be designated. The first and second ECMs may be transmitted to a plurality of television receivers. Data from the first ECM may be used for descrambling of the first television channel by the plurality of television receivers. Data from the second ECM may be used for descrambling of the second television channel by the plurality of television receivers.
    • 提出了加密多个电视频道的各种安排。 可以指定通过使用第一加密方案的第一授权控制消息(ECM)来保护的多个电视频道的第一电视频道。 可以使用单个转发器流来发送多个电视频道。 可以指定在使用第一加密方案保护多个电视频道的第一电视频道的同时通过使用第二加密方案加密的第二ECM来保护的多个电视频道中的第二电视频道。 第一和第二ECM可以被发送到多个电视接收机。 来自第一ECM的数据可以用于多个电视接收机对第一电视频道的解扰。 来自第二ECM的数据可以用于多个电视接收机对第二电视频道的解扰。