Method and device for screen mirroring

Patent metadata

Field	Value
Publication number	US-9800919-B2
Application number	US-201414587450-A
Country	US
Kind code	B2
Filing date	Dec 31, 2014
Priority date	Jan 8, 2014
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A method of reproducing a streaming video received from a source device is provided. The method including reproducing, by a sync device, a first streaming video representing an image on a screen of the source device, the first streaming video being reproduced using a full screen player, when a partial area of the image on the screen of the source device changes, receiving, from the source device, a second streaming video including change information about the partial area, determining a partial screen player to reproduce the second streaming video, and reproducing the second streaming video in an area of a screen of the sync device which corresponds to the partial area of the image on the screen of the source device, the second streaming video being reproduced using the partial screen player.

First claim

What is claimed is:

1. A method of reproducing a streaming video received from a source device, the method comprising:
reproducing, by a sync device, a first streaming video representing an image on a screen of the source device, the first streaming video being reproduced using a full screen player;
when a partial area of the image on the screen of the source device changes, receiving, from the source device, a second streaming video comprising change information about the partial area, and pausing the full screen player by displaying an image of the full screen player at a moment before the pausing;
determining a partial screen player to reproduce the second streaming video; and
reproducing the second streaming video in an area of a screen of the sync device which corresponds to the partial area of the image on the screen of the source device, wherein the second streaming video is reproduced using the partial screen player and wherein the image of the full screen player at the moment before the pausing is displayed on the screen of the sync device.

2. The method of claim 1 , wherein, when a plurality of areas of the image on the screen of the source device change, the determining of the partial screen player comprises determining a plurality of partial screen players.

3. The method of claim 1 , wherein the change information of the second streaming video is received from the source device in a form of metadata.

4. The method of claim 1 , wherein the reproducing of the second streaming video comprises determining, based on the change information, a position and a size of an area of the screen of the sync device where a reproduction image of the partial screen player is to be displayed.

5. The method of claim 1 , wherein the reproducing of the second streaming video further comprises one of pausing or stopping other players from among players executed by the sync device, except for the partial screen player.

6. The method of claim 1 , wherein the reproducing of the second streaming video further comprises:
receiving, from the source device, a request to pause the partial screen player;
pausing the partial screen player;
receiving, from the source device, a request to resume the full screen player; and
resuming the full screen player.

7. A non-transitory computer-readable recording medium having a program recorded thereon, the program causing a computer to execute the method of claim 1 .

8. A method of transmitting a streaming video to a sync device, the method comprising:
transmitting, by a source device, a first streaming video representing an image displayed on a screen of the source device, the first streaming video being transmitted to the sync device;
determining whether a partial area of the image displayed on the screen of the source device has changed;
extracting change information about the changed partial area;
encoding the partial area of the image into a second streaming video, based on the change information;
transmitting the second streaming video to the sync device; and
stopping the transmitting of the first streaming video to the sync device,
wherein the second streaming video is reproduced, by the sync device, in an area of a screen of the sync device which corresponds to the partial area of the image on the screen of the source device, and
wherein the screen of the sync device displays an image of the first streaming video at a moment before the stopping transmitting the first streaming video.

9. The method of claim 8 , wherein the extracting of the change information comprises determining a transmission area comprising the changed partial area, and extracting a pixel value of the transmission area.

10. A sync device for reproducing a streaming video received from a source device, the sync device comprising:
a memory configured to store thereon instructions;
at least one processor executing the instructions being configured to reproduce a first streaming video representing an image on a screen of the source device, the first streaming video being reproduced using a full screen player; and
a communication interface configured to, when a partial area of the image on the screen of the source device changes, receive, from the source device, a second streaming video comprising change information about the partial area;
wherein the at least one processor is further configured to:
pause the full screen player by displaying an image of the full screen player at a moment before the pausing,
determine a partial screen player to reproduce the second streaming video, and
reproduce the second streaming video in an area of a screen of the sync device which corresponds to the partial area of the image on the screen of the source device, the second streaming video being reproduced using the partial screen player, and

wherein the image of the full screen player at the moment before the pausing is displayed on the screen of the sync device.

11. The sync device of claim 10 , wherein, when a plurality of areas of the image on the screen of the source device change, the at least one processor is further configured to determine a plurality of partial screen players.

12. The sync device of claim 10 , wherein the change information of the second streaming video is received from the source device in a form of metadata.

13. The sync device of claim 10 , wherein the at least one processor is further configured to determine, based on the change information, a position and a size of an area of the screen of the sync device where a reproduction image of the partial screen player is to be displayed.

14. The sync device of claim 10 , wherein the data communication interface is further configured to receive, from the source device, a request to pause the full screen player.

15. The sync device of claim 14 ,
wherein the data communication interface is further configured to receive, from the source device, a request to pause the partial screen player and a request to resume the full screen player, and
wherein the at least one processor is further configured to pause the partial screen player and resume the full screen player based on the received request to pause the partial screen player and the received request to resume the full screen player.

16. A source device for transmitting a streaming video to a sync device, the source device comprising:
a data communication interface configured to transmit a first streaming video representing an image displayed on a screen of the source device, the first streaming video being transmitted to the sync device;
at least one processor configured to:
determine whether a partial area of the image displayed on the screen of the source device has changed and to extract change information about the changed partial area, and
encode the partial area of the image into a second streaming video,

based on the change information,
wherein the data communication interface is further configured to transmit the second streaming video to the sync device,
wherein the at least one processor is further configured to stop the transmitting of the first streaming video to the sync device,
wherein the second streaming video is reproduced, by the sync device, in an area of a screen of the sync device which corresponds to the partial area of the image on the screen of the source device, and
wherein the screen of the sync device displays an image of the first streaming video at a moment before the stopping transmitting the first streaming video.

17. The source device of claim 16 , wherein the at least one processor is further configured

Assignees

• Samsung Electronics Co Ltd

Inventors

• Hahm Seong-Il

Classifications

• G06F3/1462 Primary

  with means for detecting differences between the image stored in the host and the images displayed on the remote displays · CPC title

• A43B13/20

  Pneumatic soles {filled with a compressible fluid, e.g. air, gas (inflatable linings for skiboots A43B5/0407)} · CPC title

• A43B17/08 Primary

  ventilated · CPC title

• A43B17/02

  wedge-like or resilient · CPC title

• G09G5/14

  Display of multiple viewports · CPC title