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    • 3. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING AN AUDIOVISUAL STREAM
    • 用于提供音频流的方法和设备
    • WO2009075965A3
    • 2009-08-13
    • PCT/US2008082212
    • 2008-11-03
    • MOTOROLA INCOLIVEREAU ALEXISBONNEFOY-CUDRAZ DAVIDJANNETEAU CHRISTOPHEPICAULT JEROME
    • OLIVEREAU ALEXISBONNEFOY-CUDRAZ DAVIDJANNETEAU CHRISTOPHEPICAULT JEROME
    • H04W4/06H04W4/02H04W4/08
    • H04W4/02H04L65/4084H04L67/18H04W4/185
    • An audio stream server (115) comprises a request processor (203) which receives an audiovisual stream request for an audiovisual stream from a communication unit (101). The request comprises a location indication for the audiovisual stream. A selection processor (205) selects a group of stream feed units (103) from a plurality of stream feed units in response to the location indication and a stream data processor (207) receives audiovisual streams from at least one stream feed unit of the group of stream feed units (103). A stream generation processor (209) then generates an audiovisual stream for the communication unit (101) from the received audiovisual stream and a stream transmit processor (211) transmits the generated audiovisual stream to the communication unit (101). The communication unit (101) and/or the stream feed units (103) may specifically be user equipments of a cellular communication system. The invention may allow an audio stream for a given real world location to be provided on request e.g. using an existing cellular communication system.
    • 音频流服务器(115)包括请求处理器(203),其从通信单元(101)接收对视听流的视听流请求。 该请求包括视听流的位置指示。 选择处理器(205)响应于位置指示从多个流馈送单元中选择一组流馈送单元(103),并且流数据处理器(207)从该组的至少一个流馈送单元接收视听流 的流供给单元(103)。 流生成处理器(209)然后从接收到的视听流生成用于通信单元(101)的视听流,并且流发送处理器(211)将生成的视听流发送到通信单元(101)。 通信单元(101)和/或流馈送单元(103)具体可以是蜂窝通信系统的用户设备。 本发明可以允许根据请求提供给定真实世界位置的音频流,例如, 使用现有的蜂窝通信系统。
    • 5. 发明申请
    • METHODS AND APPARATUS FOR IP MULTICASTING
    • 用于IP组播的方法和设备
    • WO2007046997A3
    • 2007-12-21
    • PCT/US2006036181
    • 2006-09-18
    • MOTOROLA INCNARAYANAN VIDYAJANNETEAU CHRISTOPHEPOPOVICH GEORGE
    • NARAYANAN VIDYAJANNETEAU CHRISTOPHEPOPOVICH GEORGE
    • H04L12/56
    • H04L12/185H04L12/189H04W8/04
    • A method and apparatus for multicast communication, wherein the apparatus is configured for performing the method that includes the steps of: communicating (210) a request to a server to join a first multicast group, the first multicast group associated with a first multicast address; determining (220) a second multicast group corresponding to the first multicast group, the second multicast group having a second multicast address; joining (230) the second multicast group to create a corresponding multicast tunnel; receiving (240) a first multicast packet from the server using the multicast tunnel, the first multicast packet comprising the first and second multicast addresses; removing (250) the second multicast address from the first multicast packet; and forwarding (260) the first multicast packet comprising the first multicast address to an entity.
    • 一种用于多播通信的方法和装置,其中所述装置被配置用于执行包括以下步骤的方法:向服务器传送(210)请求以加入第一多播组,所述第一多播组与第一多播地址相关联; 确定(220)与所述第一多播组相对应的第二多播组,所述第二多播组具有第二多播地址; 加入(230)第二多播组以创建对应的多播隧道; 使用所述多播隧道从所述服务器接收(240)第一多播分组,所述第一多播分组包括所述第一和第二多播地址; 从所述第一组播分组中移除(250)所述第二组播地址; 以及将包括所述第一组播地址的所述第一组播分组转发(260)给实体。