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    • 2. 发明申请
    • DEVICE AND METHOD FOR THE PREPARATION OF SENDING DATA AND CORRESPONDING PRODUCTS
    • 用于制作发送数据和对应产品的设备和方法
    • WO2005055553A2
    • 2005-06-16
    • PCT/EP2004/053143
    • 2004-11-26
    • THOMSON LICENSING S.A.BORDES, PhilippeGUILLOTEL, PhilippeLORETTE, Anne
    • BORDES, PhilippeGUILLOTEL, PhilippeLORETTE, Anne
    • H04L29/06
    • H04L65/607H04L29/06027H04N21/234327H04N21/23439H04N21/2383H04N21/2402H04N21/2662H04N21/4382H04N21/64322
    • The present invention relates to a device (1) and a method for the preparation of data (21) to be sent as a continuous stream via a communication network. The device comprises means for obtainment (11) of the data originating from a database (2), which contains at least two data stream entities (Ej) for data associated respectively with different transmission throughputs (24), means of transfer (12) of these data to a sending system (3), means of connection (13) to one of these entities, and means of switching (14) of the means of connection from one of the entities to another. The preparation device also comprises means of regular addition (15) to the data transferred, of error correction codes (22). The means of switching switch from a first entity to a second entity of greater throughput, when this augmented data stream (DATA) reaches the sum of the sending throughput associated with the second entity and of an additional throughput (possibly zero) associated with an initial input of error correction codes of the second entity, and the means of addition reinitialize the addition of the codes to this initial input upon this switching. Application to streaming over IP network.
    • 本发明涉及一种用于通过通信网络作为连续流发送的数据(21)的准备装置(1)和方法。 该设备包括用于获取(11)从数据库(2)获得的数据(11)的装置,其包含用于分别与不同传输吞吐量(24)相关联的数据的至少两个数据流实体(Ej),传输装置(12) 这些数据发送到发送系统(3),连接到这些实体中的一个的连接装置(13)以及从一个实体到另一个实体切换(14)连接装置的装置。 准备装置还包括对数据传送的常规加法(15),纠错码(22)。 当该增强数据流(DATA)达到与第二实体相关联的发送吞吐量的总和与与初始值相关联的附加吞吐量(可能为零))之和时,将交换机从第一实体切换到具有更大吞吐量的第二实体的装置 第二实体的纠错码的输入和加法装置在该切换时重新初始化该初始输入的代码的相加。 应用于IP网络流。