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1. 发明申请

WO1998043162A1 DOWNLOADING A COMPUTER FILE FROM A TRANSMITTER VIA A RECEIVER/DECODER TO A COMPUTER 审中-公开
标题翻译：通过接收器/解码器将电脑文件从传输器下载到计算机
公开(公告)号：WO1998043162A1
公开(公告)日：1998-10-01
申请号：PCT/EP1997002109
申请日：1997-04-25
申请人： CANAL+ SOCIETE ANONYME , MEILLAUD, Eugene , BEUQUE, Jean-Bernard, Gérard, Maurice
发明人： CANAL+ SOCIETE ANONYME
IPC分类号： G06F09/445
CPC分类号： G06F11/10 , G06T9/007 , H04N7/17309 , H04N21/258 , H04N21/40
摘要： The file, or a part thereof, is divided into a series of R groups of data, and each of the groups is subdivided into a series of C blocks of the data. A group of C redundancy blocks is generated, each redundancy block being related to respective ones of the data blocks in the R groups by being a bitwise exclusive OR or NOR of those data blocks. Each of the groups of data blocks and the group of redundancy blocks are repeatedly transmitted from the transmitter. At the receiver/decoder, at least some of the transmitted blocks are received and supplied to the computer. The computer is used to determine for at least one of the received redundancy blocks whether that redundancy block and all except one of its respective data blocks have been received, and if so regenerate said one data block. Lost data blocks can be regenerated without waiting for retransmitting.
摘要翻译：文件或其一部分被分成一系列R组的数据，并且每个组被细分为数据的一系列C块。生成一组C冗余块，每个冗余块通过作为这些数据块的按位异或运算而与R组中的各个数据块相关。从发送器重复发送数据块组和冗余块组中的每一组。在接收机/解码器处，传送的块中的至少一些被接收并提供给计算机。计算机用于确定所接收的冗余块中的至少一个是否已经接收到该冗余块以及除了其相应的数据块中的一个以外的所有冗余块，并且如果是，则重新生成所述一个数据块。可以重新生成丢失的数据块，而无需重新发送。

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