US 12,217,772 B2Granted

Remote operation handling on PTS restart

AssigneeDISH Network Technologies India Private Limited

InventorsVimalraj Ganesan, Deepak Sharma, Devaraja Huvinahalli

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Abstract

Devices, systems, and processes for reducing interruptions due to a presentation timestamp restart (PTSrs) are provided. A process includes receiving content data packets identifiable by a timestamp. The timestamps vary between a PTSmin and a PTSmax. When PTSmax is reached, a next data packet is restarted at substantially equal to PTSmin. The process includes first determining whether one of the timestamps have restarted and, if so, generating a loop over index file associating a first timestamp with a first index value (A), a second timestamp with a second index value (B), a third timestamp with a third index value (C), and a fourth timestamp with a fourth index value (D). PTSrs may be detected when the second timestamp is greater than the fourth timestamp or when the first timestamp is greater than the third timestamp. When a restart occurs, adjustments to content playback sequence are made using the index values.

Claims18

Dependent claims

A process comprising:

receiving a data stream, for a given content, comprising a plurality of Motion Picture Experts Group (“MPEG”) data packets;
wherein each of the plurality of MPEG data packets is associated with a Presentation Time Stamp (“PTS”);
wherein the PTS for a given MPEG data packet varies between a minimum presentation timestamp value (“PTSmin”) and a maximum presentation timestamp value (“PTSmax”);
wherein PTSmax=2P;
and
wherein P is a number of bits provided in a PTS data field for a header of a given data packet in the data stream;
wherein the data stream further comprises:
a prior data packet (“PDP”);
wherein the PDP has a PTS that is less than the PTSmax;
a start data packet (“SDP”) identified by a starting PTS (“PTSS”);
a max data packet (“MDP”) occurring in the data stream after the SDP;
wherein the MDP is an MPEG I frame and has an MDP PTS (“MDP PTS”) substantially equal to the PTSmax for the data stream;
and
wherein the PDP occurs, in the data stream, prior to the MDP:
a next data packet (“NDP”) occurring in the data stream after the MDP and identified by a loop over PTS (“PTSLO”);
wherein PTSLO=PTSmin=0;
and
wherein the PTSLO is an MPEG I frame and has an NDP PTS (“NDP PTS”) substantially equal to the PTSmin for the data stream;
and
a later data packet (“LDP”);
wherein the LDP occurs, in the data stream, after the NDP;
and
wherein the LDP has a PTS that is greater than the PTSLO;
an end data packet (“EDP”) occurring in the data stream after the NDP and identified by an ending PTS (“PTSE”);
upon receiving the SDP, associating the SDP with a first index value (“A”);
monitoring the data stream for a presence of the MDP;
associating the MDP with a second index value (“B”);
associating the NDP with a third index value (“C”);
associating the EDP with a fourth index value (“D”);
comparing the MDP-PTS with the PTSE;
and
determining timestamping of the plurality of MPEG data packets restarted in the data stream when the MDP-PTS is greater than the PTSE.

29 more elements

A process comprising:

receiving a data stream, for a given content, comprising a plurality of Motion Picture Experts Group (“MPEG”) data packets;
wherein each of the plurality of MPEG data packets is associated with a Presentation Time Stamp (“PTS”);
wherein the PTS for a given MPEG data packet varies between a minimum presentation timestamp value (“PTSmin”) and a maximum presentation timestamp value (“PTSmax”);
wherein the data stream further comprises:
a start data packet (“SDP”) identified by a starting PTS (“PTSS”);
a max data packet (“MDP”) occurring in the data stream after the SDP;
wherein the MDP is an MPEG I frame and has an MDP PTS (“MDP PTS”) substantially equal to the PTSmax for the data stream;
a next data packet (“NDP”) occurring in the data stream after the MDP and identified by a loop over PTS (“PTSLO”);
wherein the PTSLO is an MPEG I frame and has an NDP PTS (“NDP PTS”) substantially equal to the PTSmin for the data stream;
and
an end data packet (“EDP”) occurring in the data stream after the NDP and identified by an ending PTS (“PTSE”);
upon receiving the SDP, associating the SDP with a first index value (“A”);
monitoring the data stream for a presence of the MDP;
associating the MDP with a second index value (“B”);
associating the NDP with a third index value (“C”);
and
associating the EDP with a fourth index value (“D”);
comparing the MDP-PTS with the PTSE;
and
determining timestamping of the plurality of MPEG data packets restarted in the data stream when the MDP-PTS is greater than the PTSE.

17 more elements

A process comprising:

receiving a data stream, for a given content, comprising a plurality of Motion Picture Experts Group (“MPEG”) data packets;
wherein each of the plurality of MPEG data packets is associated with a Presentation Time Stamp (“PTS”);
wherein the PTS for a given MPEG data packet varies between a minimum presentation timestamp value (“PTSmin”) and a maximum presentation timestamp value (“PTSmax”);
wherein the data stream further comprises:
a start data packet (“SDP”) identified by a starting PTS (“PTSS”);
a max data packet (“MDP”) occurring in the data stream after the SDP;
wherein the MDP is an MPEG I frame and has an MDP PTS (“MDP PTS”) substantially equal to the PTSmax for the data stream;
a next data packet (“NDP”) occurring in the data stream after the MDP and identified by a loop over PTS (“PTSLO”);
wherein the PTSLO is an MPEG I frame and has an NDP PTS (“NDP PTS”) substantially equal to the PTSmin for the data stream;
and
an end data packet (“EDP”) occurring in the data stream after the NDP and identified by an ending PTS (“PTSE”);
upon receiving the SDP, associating the SDP with a first index value (“A”);
monitoring the data stream for a presence of the MDP;
associating the MDP with a second index value (“B”);
associating the NDP with a third index value (“C”);
associating the EDP with a fourth index value (“D”);
comparing the MDP-PTS with the NDP-PTS;
and
determining timestamping of the plurality of MPEG data packets restarted in the data stream when the MDP-PTS is greater than the NDP-PTS.

16 more elements

A process comprising:

receiving a data stream, for a given content, comprising a plurality of Motion Picture Experts Group (“MPEG”) data packets;
wherein each of the plurality of MPEG data packets is associated with a Presentation Time Stamp (“PTS”);
wherein the PTS for a given MPEG data packet varies between a minimum presentation timestamp value (“PTSmin”) and a maximum presentation timestamp value (“PTSmax”);
wherein the data stream further comprises:
a start data packet (“SDP”) identified by a starting PTS (“PTSS”);
a max data packet (“MDP”) occurring in the data stream after the SDP;
wherein the MDP is an MPEG I frame and has an MDP PTS (“MDP PTS”) substantially equal to the PTSmax for the data stream;
a next data packet (“NDP”) occurring in the data stream after the MDP and identified by a loop over PTS (“PTSLO”);
wherein the PTSLO is an MPEG I frame and has an NDP PTS (“NDP PTS”) substantially equal to the PTSmin for the data stream;
and
an end data packet (“EDP”) occurring in the data stream after the NDP and identified by an ending PTS (“PTSE”);
upon receiving the SDP, associating the SDP with a first index value (“A”);
monitoring the data stream for a presence of the MDP;
associating the MDP with a second index value (“B”);
associating the NDP with a third index value (“C”);
associating the EDP with a fourth index value (“D”);
receiving a request to apply at trick-play operation to the plurality of MPEG data packets;
comparing the MDP-PTS to the PTSE;
determining, when MDP-PTS is greater than PTSE, timestamping has restarted for the plurality of MPEG data packets in the data stream;
and
applying the trick-play operation to the plurality of MPEG data packets by:
calculating a new PTS (“PTSN”) at which to continue presentation of the given content;
wherein the PTSN identifies one of the plurality of MPEG data packets received in the data stream.

20 more elements

A process comprising:

receiving a data stream, for a given content, comprising a plurality of Motion Picture Experts Group (“MPEG”) data packets;
wherein each of the plurality of MPEG data packets is associated with a Presentation Time Stamp (“PTS”);
wherein the PTS for a given MPEG data packet varies between a minimum presentation timestamp value (“PTSmin”) and a maximum presentation timestamp value (“PTSmax”);
wherein the data stream further comprises:
a start data packet (“SDP”) identified by a starting PTS (“PTSS”);
a max data packet (“MDP”) occurring in the data stream after the SDP;
wherein the MDP is an MPEG I frame and has an MDP PTS (“MDP PTS”) substantially equal to the PTSmax for the data stream;
a next data packet (“NDP”) occurring in the data stream after the MDP and identified by a loop over PTS (“PTSLO”)
wherein the PTSLO is an MPEG I frame and has an NDP PTS (“NDP PTS”) substantially equal to the PTSmin for the data stream;
and
an end data packet (“EDP”) occurring in the data stream after the NDP and identified by an ending PTS (“PTSE”):
upon receiving the SDP, associating the SDP with a first index value (“A”);
monitoring the data stream for a presence of the MDP;
associating the MDP with a second index value (“B”);
associating the NDP with a third index value (“C”);
associating the EDP with a fourth index value (“D”);
receiving a request to apply at trick-play operation to the plurality of MPEG data packets;
wherein the request is for a backward seek in the given content;
comparing the MDP-PTS to the PTSE;
determining, when MDP-PTS is greater than PTSE, timestamping has restarted for the plurality of MPEG data packets in the data stream;
and
applying the trick-play operation to the plurality of MPEG data packets by:
setting PTSN=PTSS−(Q*Z)when PTSN>Q*Z;
setting PTSN=PTSLO+PTSS−(Q*Z)when PTSN≤Q*Z;
wherein Q is a point located within the data stream;
and
wherein Z is an increment rate for data stream for the given content;
and
calculating a new PTS (“PTSN”) at which to continue presentation of the given content;
and
wherein the PTSN identifies one of the plurality of MPEG data packets received in the data stream.

28 more elements

A computer readable medium storing non-transient computer instructions, which when executed by a processor instruct a server to perform first operations with respect to a plurality of motion picture experts group (“MPEG”) data packets received in a data stream, for a given content, the first operations comprising:

receiving in the data stream, for the given content, the plurality of MPEG data packets;
wherein each of the plurality of MPEG data packets is associated with a Presentation Time Stamp (“PTS”);
wherein the PTS for a given MPEG data packet varies between a minimum presentation timestamp value (“PTSmin”) and a maximum presentation timestamp value (“PTSmax”);
wherein the data stream further comprises:
a start data packet (“SDP”) identified by a starting PTS (“PTSS”);
a max data packet (“MDP”) occurring in the data stream after the SDP;
wherein the MDP is an MPEG I frame and has an MDP PTS (“MDP PTS”) substantially equal to the PTSmax for the data stream;
a next data packet (“NDP”) occurring in the data stream after the MDP and identified by a loop over PTS (“PTSLO”);
wherein the PTSLO is an MPEG I frame and has an NDP PTS (“NDP PTS”) substantially equal to the PTSmin for the data stream;
and
an end data packet (“EDP”) occurring in the data stream after the NDP and identified by an ending PTS (“PTSE”);
upon receiving the SDP, associating the SDP with a first index value (“A”);
monitoring the data stream for a presence of the MDP;
associating the MDP with a second index value (“B”);
associating the NDP with a third index value (“C”);
associating the EDP with a fourth index value (“D”);
receiving a request to apply a trick-play operation to the plurality of MPEG data packets;
comparing the MDP-PTS to the PTSE;
determining, when MDP-PTS is greater than PTSE, timestamping has restarted for the plurality of MPEG data packets in the data stream;
and
applying the trick-play operation to the plurality of MPEG data packets by:
calculating a new PTS (“PTSN”) at which to continue presentation of the given content;
wherein the PTSN identifies one of the plurality of MPEG data packets received in the data stream.

20 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/221,154Filed 12 Jul 2023 · continuation
Priority: 2 May 2022
Published: US 2023/0352059 A12 Nov 2023
Granted: 4 Feb 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G11B 27/34
Indexing; Addressing; Timing or synchronising; Measuring tape travel: indicating arrangements
H04N 21/4302
Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g.…:…
H04N 21/8547
Content authoring: involving timestamps for synchronizing content
G11B
Information storage based on relative movement between record carrier and transducer

Family

Application17/734,278Parent of this continuation · filed 2 May 2022
US 2023/0352059 A1Pre-grant publication · published 2 Nov 2023
US 11,741,998 B1Parent of this continuation
US 12,217,772 B2This patent

From the US filing history. Foreign family members aren’t listed.

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