公开(公告)号：US11095929B2

公开(公告)日：2021-08-17

申请号：US16797952

申请日：2020-02-21

申请人： Livestreaming Sweden AB

发明人： Per Lindgren ,  Ted Olsson ,  Anders Cedronius ,  Hans Insulander ,  Christer Bohm ,  Magnus Danielson

IPC分类号： H04N21/242 ,  H04L29/06 ,  H04N21/236 ,  H04N21/43 ,  H04N21/8547 ,  H04N21/61

摘要： Systems and methods for video distribution synchronization are described herein. An example method to distribute a media stream over a distribution network to a number of devices may include determining, by one or more computer processors coupled to memory, a common master-client shared time reference Tref. Example methods may include determining a mean intermediate arrival time for first packets of a first type of the media stream, determining respective first playout times for the first packets based on the mean intermediate arrival time and the time reference Tref, associating the first packets with the respective first playout times, and distributing the media stream to the plurality of devices.

公开(公告)号：US11949512B2

公开(公告)日：2024-04-02

申请号：US16078365

申请日：2017-02-24

申请人： Livestreaming Sweden AB

发明人： Anders Cedronius ,  Hans Insulander ,  Christer Bohm ,  Per Lindgren

IPC分类号： H04L1/18 ,  H04L1/1809 ,  H04L1/1867 ,  H04L43/0829 ,  H04L43/0852

CPC分类号： H04L1/1809 ,  H04L1/1877 ,  H04L1/1887 ,  H04L43/0829 ,  H04L43/0852

摘要： A method in a packet-based network like the Internet is provided, which is directed towards packet loss recovery for transmission of a data stream, DS0 in a packet-based network. The method comprises transmitting data packets associated with the data stream, and upon receiving a retransmission request of missing data, retransmitting the missing data applying a selective retransmission of missing data, which may be based on a priority ranking of data types to be retransmitted, performing retransmission if it is determined that missing data will be received in time for display, or performing retransmission with a rate control.