Patent ID: 9374410
Filing Date: 2016-06-21
CPC Classification: H04L,H04N

Claim Text:
1. A method for switching between a unicast streaming source and a multicast streaming source of over-the-top (OTT) streams, comprising: retrieving an OTT unicast stream from the unicast streaming source and an OTT multicast stream from the multicast streaming source, wherein there is a time delay between the OTT unicast stream and the OTT multicast stream; synchronizing the OTT unicast stream and the OTT multicast stream to compensate for the time delay by comparing the OTT unicast stream and the OTT multicast stream, wherein comparing the OTT unicast stream and the OTT multicast stream includes comparing an index of a next requested TS segment designated in a playlist of the OTT unicast stream to an index of a current TS segment included in the OTT multicast stream; and determining a time delay based on a difference between the TS segment indexes; selecting one of the OTT unicast stream and the OTT multicast stream; and switching to a streaming source of the selected OTT stream.