Controlling an ultra wide video display in stadium settings using mobile positioning information

• US 10,628,108 B2
• Filed: 05/08/2015
• Issued: 04/21/2020
• Est. Priority Date: 05/08/2015
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Mirarchi, Alberto, Gavita, Edoardo, Phillips, Chris
• Primary Examiner(s): Dicke, Chad M
• Application Number:
  US15/570,180
• Publication Number:
  US 20180136893A1
• Time in Patent Office: 1,810 Days
• Field of Search: 345 13
• CPC Class Codes: G06F 3/1446 display composed of modules, e.g. video walls
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2356/00 Detection of the display position w.r.t. other display screens
• CPC Class Codes: G09G 2370/022 Centralised management of display operation, e.g. in a server instead of locally
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 5/12 Synchronisation between the display unit and other units, e.g. other display units, video-disc players

Abstract

Systems and methods related to a mobile device video wall are disclosed. In some embodiments, a mobile device operates to obtain one or more media files that contain partial-frame video content for a grid location in a video grid for a mobile device video wall. The mobile device further operates to provide playout of partial-frame video content for the grid location such that the playout of the partial-frame video content for the grid location by the mobile device is synchronized to playout of partial-frame video content for other grid locations in the video grid by other mobile devices in the mobile device video wall.

Claims

1. A method of operation of a mobile device to provide playout of full-frame video content for a mobile device video wall, the method comprising:

obtaining one or more media files that contain partial-frame video content for a grid location in a video grid for the mobile device video wall, wherein;

the video grid divides each frame of the full-frame video content into a plurality of frame areas each corresponding to a different one of a plurality of grid locations in the video grid such that the partial-frame video content for the grid location consists of video content from a corresponding frame area of the plurality of frame areas of the full-frame video content;

each grid location of the video grid corresponds to a different set of one or more physical locations of mobile devices within the mobile device video wall;

the grid location for which the one or more media files are obtained is one of the plurality of grid locations that corresponds to a physical location of the mobile device; and

the partial-frame video content for the grid location comprises partial-frame video content corresponding to each of a plurality of times in the playout; and

providing playout of the partial-frame video content for the grid location such that the playout of the partial-frame video content for the grid location corresponding to the plurality of times by the mobile device is synchronized to playout of partial-frame video content for other grid locations in the video grid by other mobile devices in the mobile device video wall.

2. The method of claim 1, further comprising:

receiving a notification that indicates a time at which the playout of the partial-frame video content for the grid location is to begin,

wherein providing the playout of the partial-frame video content for the grid location comprises providing the playout of the partial-frame video content beginning at the time indicated by the notification.

3. The method of claim 2, wherein the notification is a multicast notification.

4. The method of claim 1, further comprising:

receiving a multicast notification address;

port;

joining a multicast at the multicast notification address;

port; and

receiving a multicast notification via the multicast on the multicast notification address;

port that indicates a time at which the playout of the partial-frame video content for the grid location is to begin,

wherein providing the playout of the partial-frame video content for the grid location comprises providing the playout of the partial-frame video content beginning at the time indicated by the multicast notification.

5. The method of claim 4, further comprising:

sending location information to a remote system that is indicative of the physical location of the mobile device; and

receiving one or more uniform resource locators for the one or more media files from the remote system in response to sending the location information,

wherein obtaining the one or more media files that contain the partial-frame video content for the grid location comprises obtaining the one or more media files that contain the partial-frame video content for the grid location using the one or more uniform resource locators.

6. The method of claim 1, further comprising, after the playout of the full-frame video content by the mobile device video wall has begun:

receiving a notification that indicates a master player playout timing for the full-frame video content,

wherein providing the playout of the partial-frame video content for the grid location comprises providing the playout of the partial-frame video content according to the master player playout timing such that the playout of the partial-frame video content begins at an appropriate playout location within the partial-frame video content to synchronize playout at the mobile device with playout at the other mobile devices in the mobile device video wall.

7. The method of claim 6, wherein the notification is a multicast notification.

8. The method of claim 1, further comprising:

receiving a multicast notification address;

port;

joining a multicast at the multicast notification address;

port; and

receiving a multicast notification via the multicast on the multicast notification address;

port that indicates a master player playout timing at which the partial-frame video content for the grid location is to begin,

wherein providing the playout of the partial-frame video content for the grid location comprises providing the playout of the partial-frame video content according to the master player playout timing such that the playout of the partial-frame video content begins at an appropriate playout location within the partial-frame video content to synchronize playout at the mobile device with playout at the other mobile devices in the mobile device video wall.

9. A mobile device enabled to operate, along with a plurality of other mobile devices, to provide playout of full-frame video content as a mobile device video wall, the mobile device comprising:

a display;

one or more processors; and

memory containing software executable by the one or more processors, whereby the mobile device is operative to;

obtain one or more media files that contain partial-frame video content for a grid location of a video grid for the mobile device video wall, wherein;

the video grid divides each frame of the full-frame video content into a plurality of frame areas each corresponding to a different one of a plurality of grid locations in the video grid such that the partial-frame video content for the grid location consists of video content from a corresponding frame area of the plurality of frame areas of the full-frame video content;

each grid location of the video grid corresponds to a different set of one or more physical locations of mobile devices within the mobile device video wall;

the grid location for which the one or more media files are obtained is one of the plurality of grid locations that corresponds to a physical location of the mobile device; and

the partial-frame video content for the grid location comprises partial-frame video content corresponding to each of a plurality of times in the playout; and

provide playout of the partial-frame video content for the grid location on the display such that the playout of the partial-frame video content for the grid location corresponding to the plurality of times by the mobile device is synchronized to playout of partial-frame video content for other grid locations in the video grid by the other mobile devices in the mobile device video wall.

10. A method of operation of a server system comprising one or more server computers to provide playout of full-frame video content by a mobile device video wall, the method comprising:

for each mobile device of a plurality of mobile devices comprised in the mobile device video wall, delivering one or more media files that contain partial-frame video content for a grid location in a video grid for the mobile device video wall, wherein;

the video grid divides each frame of the full-frame video content into a plurality of frame areas each corresponding to a different one of a plurality of grid locations in the video grid such that the partial-frame video content for the grid location consists of video content from a corresponding frame area of the plurality of frame areas of the full-frame video content;

each grid location of the video grid corresponds to a different set of one or more physical locations of mobile devices within the mobile device video wall;

the grid location for which the one or more media files are delivered to the mobile device is one of the plurality of grid locations that corresponds to a physical location of the mobile device; and

the partial-frame video content for the grid location comprises partial-frame video content corresponding to each of a plurality of times in the playout; and

providing, to the plurality of mobile devices comprised in the mobile device video wall, a notification that enables the plurality of mobile devices comprised in the mobile device video wall to provide synchronized playout of the partial-frame video content corresponding to the plurality of times for the corresponding grid locations of the video grid.

11. The method of claim 10, wherein the notification indicates a time at which the playout of the full-frame video content by the mobile device video wall is to begin.

12. The method of claim 11, wherein the notification is a multicast notification.

13. The method of claim 11, further comprising:

providing a multicast notification address;

port to the plurality of mobile devices to thereby enable the plurality of mobile devices to join a multicast at the multicast notification address;

port,

wherein providing the notification comprises transmitting the notification via the multicast on the multicast notification address;

port.

14. The method of claim 13, further comprising, for each mobile device of the plurality of mobile devices comprised in the mobile device video wall:

receiving location information that is indicative of the physical location of the mobile device;

determining the grid location of the mobile device within the video grid based on the location information; and

delivering one or more uniform resource locators for the one or more media files for the grid location to the mobile device.

15. The method of claim 10, further comprising, after the playout of the full-frame video content by the mobile device video wall has begun:

multicasting notifications to the plurality of mobile devices that indicate a master player playout timing for the full-frame video content.

16. The method of claim 10, further comprising, after the playout of the full-frame video content by the mobile device video wall has begun:

receiving location information that is indicative of the physical location of a new mobile device;

determining that the new mobile device is in the video grid based on the location information;

determining that the playout for the full-frame video content by the mobile device video wall has already begun;

upon determining that the playout for the full-frame video content by the mobile device video wall has already begun, determining whether to accept the new mobile device into the mobile device video wall;

determining the grid location of the new mobile device within the video grid based on the location information; and

upon determining to accept the new mobile device into the mobile device video wall, delivering, to the new mobile device, one or more uniform resource locators for the one or more media files for the grid location of the new mobile device.

17. The method of claim 16, further comprising:

delivering a multicast notification address;

port to the new mobile device to thereby enable the new mobile device to join a multicast at the multicast notification address;

port,

wherein providing the notification comprises multicasting the notification on the multicast notification address;

port that indicates a master player playout timing for the full-frame video content.

18. The method of claim 10, further comprising:

determining whether it is safe to begin the playout of the full-frame video content on the mobile device video wall; and

determining whether the playout of the full-frame video content on the mobile device video wall has been triggered,

wherein;

providing the notification comprising providing, to the plurality of mobile devices comprised in the mobile device video wall, a notification that indicates a time at which the playout of the full-frame video content by the mobile device video wall is to begin upon determining that it is safe to begin the playout of the full-frame video content on the mobile device video wall and determining that the playout of the full-frame video content on the mobile device video wall has been triggered.

19. The method of claim 18, wherein determining whether it is safe to begin the playout of the full-frame video content on the mobile device video wall comprises determining whether media files for at least a predefined threshold number of the plurality of grid locations in the video grid have been successfully delivered to corresponding mobile devices in the mobile device video wall.

20. The method of claim 10, further comprising:

generating the video grid; and

encoding the full-frame video content according to the video grid to provide partial-frame video content for the plurality of grid locations in the video grid.

21. The method of claim 20, wherein generating the video grid comprises dynamically generating the video grid.

22. A server system comprising:

one or more server computers operative to;

for each mobile device of a plurality of mobile devices comprised in a mobile device video wall, deliver one or more media files that contain partial-frame video content for a grid location in a video grid for the mobile device video wall, wherein;

the video grid divides each frame of full-frame video content into a plurality of frame areas each corresponding to a different one of a plurality of grid locations in the video grid such that the partial-frame video content for the grid location consists of video content from a corresponding frame area of the plurality of frame areas of the full-frame video content;

each grid location of the video grid corresponds to a different set of one or more physical locations of mobile devices within the mobile device video wall;

the grid location for which the one or more media files are delivered to the mobile device is one of the plurality of grid locations that corresponds to a physical location of the mobile device; and

the partial-frame video content for the grid location comprises partial-frame video content corresponding to each of a plurality of times in a playout; and

provide, to the plurality of mobile devices comprised in the mobile device video wall, a notification that enables the plurality of mobile devices comprised in the mobile device video wall to provide synchronized playout of the partial-frame video content corresponding to the plurality of times for the corresponding grid locations of the video grid.