公开(公告)号：US06502139B1

公开(公告)日：2002-12-31

申请号：US09322976

申请日：1999-06-01

申请人： Yitzhak Birk ,  Ron Mondri

发明人： Yitzhak Birk ,  Ron Mondri

IPC分类号： G06F1516

CPC分类号： H04N21/47208 ,  H04N7/17318 ,  H04N21/235 ,  H04N21/26275 ,  H04N21/4331 ,  H04N21/435 ,  H04N21/6377 ,  H04N21/658 ,  H04N21/8456

摘要： A system and method for Near Video On Demand (NVOD) transmission of a program from a server to a plurality of clients. The program is partitioned into segments. Each segment is transmitted repeatedly, with the transmission rate of segments subsequent to the first segment being lower than the transmission rate of the first segment. The transmission of the segments is scheduled in a manner that minimizes the aggregate transmission bandwidth, subject to constraints related to client parameters such as client storage capacity and client recording rates. Preferably, the sequences are partitioned further into subsequences, and redundant subsequences are used for error correction. Preferably, the segments, or the subsegments, include metadata such as segment or subsegment length, segment or subsegment sequence number, or the time until the next transmission of the sequence or subsequence.

摘要翻译： 一种从服务器到多个客户端的程序的近视点播（NVOD）传输的系统和方法。 该程序被分割成段。 每个段被重复发送，第一段之后的段的传输速率低于第一段的传输速率。 按照与客户端参数（如客户端存储容量和客户端记录速率）相关的约束，可以以最小化聚合传输带宽的方式调度段的传输。 优选地，将序列进一步划分成子序列，并且冗余子序列用于纠错。 优选地，片段或子片段包括元数据，例如片段或子段长度，片段或子片段序列号，或直到下一次发送序列或子序列的时间。