US 11,388,214 B2Granted

System and method for seamless broadcast data recovery using terrestrial and broad band connectivity

OwnerAdi Rozenberg, Eran Shalev +1inventors

InventorsAdi Rozenberg, Eran Shalev, Limor Touriel

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Abstract

A system for broadcast data recovery of data stream transmission, the system having a broadcast distribution network transferring the data stream from a sender to a plurality of receivers, the system having: a transmission center receiving the data stream from the sender and sending stamped RTP packets in an IP reference RTP stream to the IP distribution network and sending stamped RTP packets as an RTP broadcast data stream to a broadcast network, the broadcast network including: a satellite and an RF link; at least one registered/assigned recovery server connected to the IP distribution network and assigned to the plurality of receivers, the at least one recovery server receiving a protected IP stream from the transmission center; the plurality of receivers sending a recovery request to the at least one recovery server when the respective receiver detects an erroneous/missing packet; and wherein the at least one recovery server then sends a recovery data stream to the at least one of the plurality of receivers.

Claims12

Dependent claims

A system for seamless broadcast data recovery using terrestrial and broad band connectivity of transmission of a data stream, the system having at least one IP distribution network for reliable transfer of the data stream from a sender to a plurality of receivers, the system having:

a transmission center configured to receive the data stream from the sender and to send stamped RTP packets in an IP reference RTP stream to the at least one IP distribution network and to send stamped RTP packets as an RTP broadcast data stream to at least one broadcast network, the at least one broadcast network chosen from the list including:
a satellite and an RF link;
at least one registered/assigned recovery server connected to the at least one IP distribution network and assigned to at least one of the plurality of receivers, the at least one recovery server configured to receive a protected IP stream from the transmission center;
the at least one of the plurality of receivers configured to send a recovery request to the at least one recovery server when the respective receiver detects an erroneous/missing packet;
wherein the at least one recovery server is configured to send a recovery data stream to the at least one of the plurality of receivers following receipt of the recovery request;
wherein the transmission center is configured to stamp RTP packets, dependent on the presence of a null packet in the data stream, wherein data stamped to the null packet includes:
a newly-created marker;
an extracted RTP packet header information;
a media index counter;
and RTP packet identifiers since a previous marker;
and
wherein the at least one registered/assigned recovery server further includes, respectively:
a recovery server IP network interface;
a recovery registration block;
an RTP packet recovery block in communication with an RTP packet buffer and with the IP network interface;
a media stamp detection block in communication with the RTP packet buffer;
and the media stamp detection block configured to extract marker information from the RTP packet buffer and create a manifest list.

14 more elements

In a system for seamless broadcast data recovery using terrestrial and broad band connectivity of transmission of a data stream having a plurality of media packets with stamped information, the system having at least one IP distribution network for reliable transfer of the data stream from a sender to a plurality of receivers, a method comprising:

configuring a transmission center to receive the data stream from the sender and to send stamped RTP packets in an IP reference RTP stream to the at least one IP distribution network and to send stamped RTP packets as an RTP broadcast data stream to at least one broadcast network, the at least one broadcast network chosen from the list including:
a satellite and an RF link;
connecting at least one registered/assigned recovery server to the at least one IP distribution network and assigning the at least one registered/assigned recover server to at least one of the plurality of receivers, the at least one recovery server receiving a protected IP stream from the transmission center;
configuring the at least one of the plurality of receivers to send a recovery request to the at least one recovery server when the respective receiver detects an erroneous/missing packet;
and
whereby the protected IP stream is encapsulated into RTP packets and stamped in the transmission center and the at least one recovery server sends a recovery data stream to the at least one of the plurality of receivers following receipt of the recovery request;
whereby the transmission center stamps RTP packets, dependent on the presence of a null packet in the data stream, whereby data stamped to the null packet includes:
a newly-created marker;
an extracted RTP packet header information;
a media index counter;
and RTP packet identifiers since a previous marker;
and
whereby a server media stamp detection block of the at least one registered/assigned recovery server extracts RTP packet marker information from an RTP packet buffer of the at least one registered/assigned recovery server and creates a manifest list, the manifest list including:
a marker index;
a timing value;
a number of media packets;
a number of bytes since a previous marker;
a segment location;
and an individual RTP packet marker.

16 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/248,653Filed 2 Feb 2021 · us provisional application
Priority: 15 Jun 2020
Published: US 2021/0392176 A116 Dec 2021
Granted: 12 Jul 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04L 65/611
For supporting one-way streaming services, e.g. Internet radio: for multicast or broadcast
H04L 65/65
Network streaming of media packets: network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
H04L 65/765
Media network packet handling: intermediate
H04L
Digital communication