公开(公告)号：US20130263201A1

公开(公告)日：2013-10-03

申请号：US13701646

申请日：2011-06-01

Applicant: James Chung-How ,  Andrew Nix ,  David Bull

Inventor： James Chung-How ,  Andrew Nix ,  David Bull

IPC: H04N21/266

CPC classification number: H04N21/26616 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/0057 ,  H04N19/164 ,  H04N19/40 ,  H04N19/89 ,  H04N21/23617 ,  H04N21/23655 ,  H04N21/2383 ,  H04N21/2389 ,  H04N21/2402 ,  H04N21/26291 ,  H04N21/2662 ,  H04N21/41407 ,  H04N21/4349 ,  H04N21/4382 ,  H04N21/4385 ,  H04N21/4755 ,  H04N21/6131 ,  H04N21/6181 ,  H04N21/631 ,  H04N21/6375 ,  H04N21/6405 ,  H04N21/6547 ,  H04N21/84 ,  H04N21/8451 ,  Y02D50/10

Abstract: This invention relates to a method and system of transmitting video data and multimedia data to a plurality of client radio receivers over an air interface using an adaptive encoding/transcoding scheme and updating the adaptive encoding/transcoding scheme in dependence upon received feedback data. A system and method is also described that includes estimating channel states and distortion levels for a plurality of transmission modes, then selecting that transmission mode for subsequent data transmission that has the lowest distortion level. Control data items can also be extracted from the first data stream to produce a multimedia data stream and a control data stream and the multimedia data stream is transmitted over a first channel; and the control data stream is transmitted over a second channel. The received data stream may be put into a plurality of multimedia slices having a predetermined slice size; and encoded into first data packets of a first predetermined size; which in turn are divided into respective integral second data packets of a second predetermined size and which are aggregated into a stream of third data packets of a third predetermined size.

Abstract translation: 本发明涉及一种使用自适应编码/代码转换方案通过空中接口向多个客户端无线电接收机发送视频数据和多媒体数据的方法和系统，并根据接收的反馈数据更新自适应编码/代码转换方案。 还描述了一种系统和方法，其包括估计多个传输模式的信道状态和失真级别，然后选择具有最低失真级别的后续数据传输的传输模式。 还可以从第一数据流中提取控制数据项以产生多媒体数据流和控制数据流，并通过第一信道传输多媒体数据流; 并且控制数据流通过第二通道传输。 接收到的数据流可以被放入具有预定切片大小的多个多媒体片段中; 并编码为第一预定大小的第一数据分组; 其又被分成具有第二预定大小的相应的整合的第二数据分组，并且被聚合成具有第三预定大小的第三数据分组的流。