Apparatus and method for receiving video service in hybrid network

Patent metadata

Field	Value
Publication number	US-9749379-B2
Application number	US-201414526902-A
Country	US
Kind code	B2
Filing date	Oct 29, 2014
Priority date	Oct 31, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A receiving terminal in a hybrid network receives a video stream through a broadcasting network. The receiving terminal receives a high speed video stream streamed at a high speed for a defined first period from a first time when switching from the broadcasting network to a communication network depending on a receiving state of the broadcasting network is determined, receives a live video stream streamed in a live form from any one time of the first period, and generates a continuous video stream using the video stream received through the broadcasting network, the high speed video stream, and the live video stream.

First claim

What is claimed is:

1. A method for receiving a video service by a receiving terminal in a hybrid network, comprising:
processing computer executable program code embodied in computer readable storage media by one or more processors, the computer executable program code comprising:
program code that receives video streams through a broadcasting network;
program code that buffers the video streams in a first video stream buffer;
program code that receives high speed video streams streamed at a higher speed than an original bit ratio speed for a defined first period from a first time when switching from the broadcasting network to a communication network is determined;
program code that buffers the high speed video streams in a second video stream buffer;
program code that receives live video streams streamed at the original bit ratio speed from any one time of the first period;
program code that buffers the live video streams in a third video stream buffer;
program code that generates a continuous video stream by comparing time stamps of the video streams stored in the first video stream buffer, the second video stream buffer, and third video stream buffer; and
program code that decodes the continuous video stream.

2. The method of claim 1 , wherein the program code that receives the live video stream includes program code that receives the live video stream from the any one time to a second time when switching from the communication network to the broadcasting network again is determined.

3. The method of claim 2 , wherein the first period is ended before the second time.

4. The method of claim 2 , further comprising program code that requests a receiving stop of the live video stream at the second time.

5. The method of claim 1 , wherein the video stream received through the broadcasting network, the high speed video stream, and the live video stream each include information on the time stamp.

6. The method of claim 1 , wherein the program code that receives the high speed video stream includes program code that receives a video stream at a position earlier than a position of the video stream received through the broadcasting network at the first time.

7. The method of claim 1 , wherein the any one time is the same as the first time or later than the first time.

8. The method of claim 1 , wherein the program code that receives the video stream through the broadcasting network includes:
program code that receives a packet stream corresponding to the video stream through the broadcasting network; and
program code that generates the video stream by performing packet decoding on the packet stream, and
wherein the program code that receives the high speed video stream includes program code that determines the first time based on the packet decoding result of the packet stream.

9. The method of claim 8 , wherein the program code that receives the live video stream includes program code that determines a receiving stop time of the live video stream based on the packet decoding result of the packet stream.

10. An apparatus for receiving a video service of a receiving terminal in a hybrid network, comprising:
a broadcasting receiving processor having program code that receives packet streams corresponding to video streams through a broadcasting network;
a first video stream buffer having program code that buffers the video streams in a first video stream buffer;
a high speed streaming processor having program code that requests and receives packet streams corresponding to a high speed video streams streamed at a first bit ratio speed for a defined first period from a first time when switching from the broadcasting network to a communication network is determined;
a second video stream buffer having program code that buffers the high speed video streams in a second video stream buffer;
a live streaming processor having program code that requests and receives packet streams corresponding to live video streams streamed at a second bit ratio speed later than the first bit ratio speed from any one time of the first period to a second time when switching from the communication network to the broadcasting network again is determined;
a third video stream buffer having program code that buffers the live video streams in a third video stream buffer;
a stream time comparator having program code that compare time stamps of the video streams stored in the first video stream buffer, the second video stream buffer, and third video stream buffer;
a video stream selection controller having program code that generates a continuous video stream using the compared result of the stream time comparator; and
a video stream decoder having program code that decodes the continuous video stream.

11. The apparatus of claim 10 , wherein the video stream selection controller has program code that determines the first time and the second time and controls the high speed streaming processor and the live streaming processor.

12. The apparatus of claim 11 , further comprising
a first packet decoder having program code that generates the video stream by performing packet decoding on the packet stream corresponding to the video stream,
wherein the video stream decoder has program code that determines the first time and the second time based on the packet decoding result of the first packet decoder.

13. The apparatus of claim 12 , further comprising:
a second packet decoder having program code that generates the live video stream by performing packet decoding on the packet stream corresponding to the live video stream; and
a third packet decoder having program code that generates the high speed video stream by performing packet decoding on the packet stream corresponding to the high speed video stream.

14. The apparatus of claim 10 , wherein the video stream decoder has program code that determines the any one time as a time which is the same as the first time or later than the first time.

15. The apparatus of claim 10 , wherein the high speed streaming processor has program code that requests streaming from a video stream at a position earlier than a position of the video stream received through the broadcasting network at the first time depending on a control of the video stream decoder.

16. The apparatus of claim 10 , wherein the video stream decoder has program code that requests streaming from the video stream at a position of the video stream received through the broadcasting network at the any one time depending on a control of the stream selection controller.

17. The apparatus of claim 10 ,
wherein each of the video stream received through the broadcasting network, the high speed video stream, and the live video stream includes timestamp information.

18. The apparatus of claim 10 , wherein the live streaming processor has program code that requests a receiving stop of the live video stream at the second time.

19. The apparatus of claim 10 , wherein the first period is shorter than a period from the any one time to the second time.

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Yun Joungil
• Bae Byungjun
• Yang Kyu Tae
• Song Yun Jeong
• Lee Hun Hee
• Lim Hyoungsoo
• Hur Namho

Classifications

• H04N21/6377

  directed to server {(one-way streaming services wherein the source is controlled by the destination H04L65/613)} · CPC title

• H04N21/6371

  directed to network · CPC title

• H04L65/4076

  Electricity · mapped topic

• H04L65/60 Primary

  Network streaming of media packets · CPC title

• H04N21/4384

  involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency · CPC title