发明名称 |
Apparatus and method for simulcast over a variable bandwidth channel |
摘要 |
A method comprising the steps of outputting periodically a schedule for a transmission of a plurality of multimedia contents to a client receiver over a unidirectional data communication channel; transmitting said schedule to said client receiver over said communication channel before said transmission of said plurality of multimedia contents, said schedule including a metadata indicating a plurality of broadcast times for respective ones of said plurality of multimedia contents for selectively activating said client receiver in accordance with said plurality of broadcast times; estimating first and second available bandwidths of said communication channel at respective ones of first and second points in time; selecting one multimedia content file of a given compression level for transmission in response to a change of available bandwidth of said communication channel between said first and second points in time so that said plurality of multimedia contents may be received at said client receiver in accordance with respective ones of said plurality of broadcast times; and transmitting said selected multimedia content file to said client receiver. |
申请公布号 |
US9313553(B2) |
申请公布日期 |
2016.04.12 |
申请号 |
US201313852290 |
申请日期 |
2013.03.28 |
申请人 |
THOMSON LICENSING |
发明人 |
Sridhar Avinash;Campana David Anthony;Anthru Shemimon Manalikudy;Boyce Jill MacDonald |
分类号 |
H04N5/445;H04N7/173;H04N21/65;H04L12/18;H04L12/24;H04L12/801;H04N21/2343;H04N21/24;H04N21/61;H04N21/6405;H04L29/06;H04L29/08 |
主分类号 |
H04N5/445 |
代理机构 |
|
代理人 |
Shedd Robert D.;Lin Reitseng |
主权项 |
1. A method comprising:
outputting periodically a schedule for a transmission of a plurality of multimedia contents to a client receiver over a unidirectional data communication channel; transmitting said schedule to said client receiver over said communication channel before said transmission of said plurality of multimedia contents, said schedule including a metadata indicating a plurality of broadcast times for respective ones of said plurality of multimedia contents for selectively activating said client receiver in accordance with said plurality of broadcast times; comparing first and second available bandwidths of said communication channel at respective ones of first and second points in time; selecting one multimedia content file of a given compression level for transmission in response to a change of available bandwidth of said communication channel between said first and second points in time so that said plurality of multimedia contents may be received at said client receiver in accordance with respective ones of said plurality of broadcast times; and transmitting said selected multimedia content file to said client receiver, wherein said transmission of said selected multimedia content file is a re-transmission of a previously-transmitted content at a different compression level. |
地址 |
Issy les-Moulineaux FR |