Remote operation handling on PTS restart

Patent metadata

Field	Value
Publication number	US-11741998-B1
Application number	US-202217734278-A
Country	US
Kind code	B1
Filing date	May 2, 2022
Priority date	May 2, 2022
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

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.

First claim

What is claimed is:

1. A process comprising:
receiving a data stream of a plurality of data packets for a given content;
wherein each of the plurality of data packets are identifiable by a timestamp;
wherein the timestamps vary between a minimum timestamp value (PTSmin) and a maximum timestamp value (PTSmax);
wherein, when PTSmax is reached, a loop over timestamp value (PTSLO) for the next data packet is restarted at substantially equal to PTSmin;

first determining whether one of the timestamps, for the plurality of data packets in the data stream, have restarted; and
generating a loop over index file when one of the timestamps has restarted;
wherein the loop over index file associates a first timestamp value for a first data packet in the plurality of data packets with a first index value (A);
wherein the loop over index file associates a second timestamp value for a second data packet in the plurality of data packets with a second index value (B);
wherein the loop over index file associates a third timestamp value for a third data packet in the plurality of data packets with a third index value (C);
wherein the loop over index file associates a fourth timestamp value for a fourth data packet in the plurality of data packets with a fourth index value (D);
wherein A, B, C and D are integers;
wherein A<B<C<D; and

wherein the first determining further comprises:
comparing the second timestamp value with the third timestamp value; and
determining the timestamps have restarted when the third timestamp value is less than the second timestamp value.

2. The process of claim 1 ,
wherein the second timestamp value is substantially equal to the maximum timestamp value (PTSmax); and
wherein the third timestamp value is substantially equal to the minimum timestamp value (PTSmin).

3. The process of claim 1 ,
wherein the index file associates the first timestamp value with a starting timestamp parameter;
wherein the index file associates the second timestamp value with a maximum timestamp parameter;
wherein the index file associates the third timestamp value with a loop over timestamp parameter; and
wherein the index file associates the fourth timestamp value with an ending timestamp parameter.

4. A process comprising:
receiving a data stream of a plurality of data packets for a given content;
wherein each of the plurality of data packets are identifiable by a timestamp;
wherein the timestamps vary between a minimum timestamp value (PTSmin) and a maximum timestamp value (PTSmax);
wherein, when PTSmax is reached, a loop over timestamp value (PTSLO) for the next data packet is restarted at substantially equal to PTSmin;

first determining whether one of the timestamps, for the plurality of data packets in the data stream, have restarted; and
generating a loop over index file when one of the timestamps has restarted;
wherein the loop over index file associates a first timestamp value for a first data packet in the plurality of data packets with a first index value (A);
wherein the loop over index file associates a second timestamp value for a second data packet in the plurality of data packets with a second index value (B);
wherein the loop over index file associates a third timestamp value for a third data packet in the plurality of data packets with a third index value (C);
wherein the loop over index file associates a fourth timestamp value for a fourth data packet in the plurality of data packets with a fourth index value (D);
wherein A, B, C and D are integers;
wherein A<B<C<D; and

wherein the first determining further comprises:
comparing the second timestamp value with the fourth timestamp value; and
determining the timestamps have restarted when the second timestamp value is greater than the fourth timestamp value.

5. The process of claim 4 ,
wherein the data stream is encoded pursuant to a Motion Pictures Experts Group (MPEG) standard; and
wherein the timestamps are presentation timestamps.

6. The process of claim 4 ,
wherein each of the plurality of data packets are MPEG encoded I-frame data packets.

7. A process comprising:
receiving a data stream of a plurality of data packets for a given content;
wherein each of the plurality of data packets are identifiable by a timestamp;
wherein the timestamps vary between a minimum timestamp value (PTSmin) and a maximum timestamp value (PTSmax);
wherein, when PTSmax is reached, a loop over timestamp value (PTSLO) for the next data packet is restarted at substantially equal to PTSmin;

first determining whether one of the timestamps, for the plurality of data packets in the data stream, have restarted; and
generating a loop over index file when one of the timestamps has restarted;
wherein the loop over index file associates a first timestamp value for a first data packet in the plurality of data packets with a first index value (A);
wherein the loop over index file associates a second timestamp value for a second data packet in the plurality of data packets with a second index value (B);
wherein the loop over index file associates a third timestamp value for a third data packet in the plurality of data packets with a third index value (C);
wherein the loop over index file associates a fourth timestamp value for a fourth data packet in the plurality of data packets with a fourth index value (D);
wherein A, B, C and D are integers;
wherein A<B<C<D; and

wherein the first determining further comprises:
comparing the third timestamp value with the first timestamp value; and
determining the timestamps have restarted when the third timestamp value is less than the first timestamp value.

8. The process of claim 7 ,
wherein the data stream is encoded pursuant to a Motion Pictures Experts Group (MPEG) standard; and
wherein the timestamps are presentation timestamps.

9. The process of claim 7 ,
wherein each of the plurality of data packets are MPEG encoded I-frame data packets.

10. A process comprising:
receiving a data stream of a plurality of data packets for a given content;
wherein each of the plurality of data packets are identifiable by a timestamp;
wherein the timestamps vary between a minimum timestamp value (PTSmin) and a maximum timestamp value (PTSmax);
wherein, when PTSmax is reached, a loop over timestamp value (PTSLO) for the next data packet is restarted at substantially equal to PTSmin;

first determining whether one of the timestamps, for the plurality of data packets in the data stream, have restarted; and
generating a loop over index file when one of the timestamps has restarted;
wherein the loop over index file associates a first timestamp value for a first data packet in the plurality of data packets with a first index value (A);
wherein the loop over index file associates a second timestamp value for a second data packet in the plurality of data packets with a second index value (B);
wherein the loop over index file associates a third timestamp value for a third data packet in the plurality of data packets with a third index value (C);
wherein the loop over index file associates a fourth timestamp value for a fourth data packet in the plurality of data packets with a fourth index value (D);
wherein A, B, C and D are integers;
wherein A<B<C<D;

wherein the data stream is encoded in accordance with a Motion Pictures Expert Group (MPEG) encoding standard;
wherein the plurality of data packets in the data stream includes MPEG encoded I-frames, B frames and P frames;
wherein the first data packet is a first MPEG encoded I-frame data packet;
wherein the second data packet is a second MPEG encoded I-frame data packet;
wherein the third data packet is a

Assignees

• Sling Media Pvt Ltd
• Dish Network Technologies India Pvt Ltd

Inventors

• Ganesan Vimalraj
• Sharma Deepak
• Huvinahalli Devaraja

Classifications

• H04N21/8547 Primary

  involving timestamps for synchronizing content · CPC title

• H04N21/4302

  Content synchronisation processes, e.g. decoder synchronisation · CPC title

• G11B27/34 Primary

  Indicating arrangements  {(indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D)} · CPC title