MULTIMEDIA DATA DISTRIBUTION SYSTEM AND OPERATING METHOD THEREOF

• US 20130231044A1
• Filed: 02/27/2013
• Published: 09/05/2013
• Est. Priority Date: 03/01/2012
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Wang, Huai-Yuan
• Granted Patent: US 9,191,133 B2
• Time in Patent Office: Days
• US Class Current: 455/3.06
• CPC Class Codes: H04H 20/72 of terrestrial networks
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A multimedia data distribution system is provided. The multimedia data distribution system comprises a multimedia controller and at least a distribution zone. A distribution zone has a zone hub and zero to finite number of zone media player. The zone hub receives multimedia data from a multimedia content source through an out-of-zone data path and then synchronously redistributes multimedia contents to rest of zone media players via in-zone data paths. A multimedia controller utilizes out-of-zone control path to transmit control message to a zone hub, which in turn relays the control messages to addressed zone media player(s) via in-zone control paths. The zone hub of a distribution zone receives status updates from individual zone media players via in-zone status update paths, aggregates them, and then relays to the multimedia controller via the out-of-zone status update path. While out-of-zone data, control, and status update paths are setting up based on Wi-Fi connections to an infrastructure AP or a Hotspot, all of the in-zone paths are established on Wi-Fi Direct peer-to-peer connections.

Claims

1. A multimedia data distribution system, comprising:

a multimedia content source;

a multimedia controller; and

at least one distribution zone, comprising;

a zone hub, receiving multimedia data from the multimedia content source through an out-of-zone data path; and

at least one zone media players, wherein each of the at least zone media player directly receives the multimedia data from the zone hub through an in-zone data path, wherein each of the in-zone data path is a wireless peer-to-peer connection.

2. The multimedia data distribution system of claim 1, wherein the multimedia controller is integrated with the zone hub in a portable device.

3. The multimedia data distribution system of claim 1, wherein the out-of-zone data path includes a Wi-Fi connection through an infrastructure AP or a Wi-Fi Hotspot, or a Wi-Fi peer-to-peer device.

4. The multimedia data distribution system of claim 1, wherein each of the in-zone data paths is a Wi-Fi Direct peer-to-peer connection.

5. The multimedia data distribution system of claim 1, wherein an out-of-zone control path is established between the multimedia controller and the zone hub and the out-of-zone control path includes a Wi-Fi bidirectional data connection established through an infrastructure AP, or a Wi-Fi Hotspot, or a Wi-Fi peer-to-peer device.

6. The multimedia data distribution system of claim 5, wherein an in-zone control path is established directly between the zone hub and each of the zone media players over the Wi-Fi Direct peer-to-peer connection, and when a control message arrives at the zone hub via the out-of-zone control path, the zone hub determines whether the control message is destined to the zone hub itself or one of the zone media players or the entire distribution zone, and the control message is terminated at the zone hub as it is destined to the zone hub, or the control message is relayed to the destined zone media player by the zone hub over the corresponding in-zone control path as the control message is destined to the zone media player, or the control message is relayed to each of the zone media players or broadcasted to them altogether as the control message is destined to the entire distribution zone.

7. The multimedia data distribution system of claim 1, wherein an out-of-zone status update path is established between the multimedia controller and the zone hub over a Wi-Fi data connection through an infrastructure AP, or a Wi-Fi Hotspot, or a Wi-Fi peer-to-peer device.

8. The multimedia data distribution system of claim 7, wherein an in-zone status update path is established between the zone hub and each of the zone media players over the Wi-Fi Direct peer-to-peer connection, and the zone hub aggregates status update messages respectively received from the zone media players and relays to the multimedia controller periodically via the out-of-zone status update path.

9. The multimedia data distribution system of claim 1, wherein a plurality of direct control and status update paths are respectively established between the multimedia controller and the zone hub and between the multimedia controller and each of the zone media players and, a control message and status update message are directly exchanged between the multimedia controller and the zone hub or one of the zone media players or the entire distribution zone through the corresponding direct control and status update paths.

10. The multimedia data distribution system of claim 9, wherein each of the control and status update paths includes a bidirectional Bluetooth-low-energy connection.

11. The multimedia data distribution system of claim 1, wherein the at least distribution zone comprises a first distribution zone and a second distribution zone, and the multimedia controller is the zone hub of the first distribution zone for relaying the multimedia data to the zone hub of the second distribution zone.

12. The multimedia data distribution system of claim 1, wherein the multimedia controller is a content source or is connected with the content source through an infrastructure WiFi or wide area network (WAN) connection.

13. A multimedia data distribution system, comprising:

a portable device having a multimedia controller and a zone hub, wherein the multimedia controller is integrated with the zone hub in the portable device; and

at least a zone media player, wherein an in-zone data path is established between the portable device and each of the zone media player, and each of the zone media player directly receives multimedia data from the zone hub in the portable device through the in-zone data path, wherein each of the in-zone data path is a wireless peer-to-peer connection.

14. The multimedia data distribution system of claim 13, wherein an in-zone control and status update path is established directly between the zone hub and each of the zone media player.

15. The multimedia data distribution system of claim 14, wherein each of the in-zone data, control and status update paths include the Wi-Fi Direct peer-to-peer connection.

16. An operating method for a multimedia data distribution system, wherein the data distribution system includes a multimedia content source, a multimedia controller and at least one distribution zone, each of the at least distribution zone has a zone hub and at least one zone media player, an in-zone data path is established between the zone hub and each of the zone media player, and an out-of-zone data path is established between the multimedia controller and the zone hub of each of the at least distribution zone, the operating method comprising:

a multimedia data transmission operation including receiving multimedia data by the zone hub through the out-of-zone data path and directly redistributing the received multimedia data by the zone hub to each of the zone media player through the corresponding in-zone data path, wherein each of the in-zone data path is a wireless peer-to-peer connection.

17. The operating method of claim 16, wherein the out-of-zone data path includes a Wi-Fi connection through an infrastructure AP or a Wi-Fi Hotspot, or a Wi-Fi peer-to-peer device.

18. The operating method of claim 16, wherein an out-of-zone control path is established between the multimedia controller and the zone hub, an in-zone control path is established directly between the zone hub and each of the zone media players over the Wi-Fi Direct peer-to-peer connection, and the operating method further comprises a control message transmission operation comprising:

determining by the zone hub whether a control message is destined to the zone hub itself or one of the zone media players or the entire distribution zone when the control message arrives at the zone hub via the out-of-zone control path;

terminating the control message at the zone hub when the control message is destined to the zone hub;

relaying the control message by the zone hub to the destined zone media player over the corresponding in-zone control path when the control message is destined to the zone media player; and

relaying or broadcasting the control message by the zone hub to each of the zone media players when the control message is destined to the entire distribution zone.

19. The operating method of claim 18, wherein the out-of-zone control path includes a Wi-Fi bidirectional data connection established through an infrastructure AP, or a Wi-Fi Hotspot, or a Wi-Fi peer-to-peer device.

20. The operating method of claim 16, wherein an out-of-zone status update path is established between the multimedia controller and the zone hub over a Wi-Fi data connection through an infrastructure AP, or a Wi-Fi Hotspot, or a Wi-Fi peer-to-peer device, an in-zone status update path is established between the zone hub and each of the zone media players over the WiFi Direct peer-to-peer connection, and the operating method further comprises a status updating operation comprises:

aggregating status update messages respectively from the zone media players by the zone hub;

relaying the status update messages to the multimedia controller periodically via the out-of-zone status update path.

21. The operating method of claim 16, wherein a plurality of direct control and status update paths are respectively established between the multimedia controller and the zone hub and between the multimedia controller and each of the zone media players, and the operating method further comprises a control message transmission operation comprising:

directly exchanging a control message and the status update message between the multimedia controller and the zone hub or one of the zone media players or the entire distribution zone through the corresponding direct control and status update paths.

22. The operating method of claim 21, wherein each of the control and status update paths includes a bidirectional Bluetooth-low-energy connections.

23. The operating method of claim 21, further comprising a status-updating operation, wherein the status updating operation comprises:

sending a status update message by each of the zone media players to the multimedia controller through the corresponding status update path.

24. The operating method of claim 16, further comprising a discovery operation, wherein the discovery operation comprises:

sending probe requests by the multimedia controller on a plurality of Wi-Fi channels; and

sending a probe response by each of the zone media players to the multimedia controller in response to the probe requests received by each of the zone media players.

25. The operating method of claim 16, further comprising a discovery operation, wherein the discovery operation comprises:

periodically sending undirected Bluetooth-low-energy advertisements by each of the zone hub and the zone media players on a plurality of predetermined advertisement channels; and

scanning the predetermined advertisement channels by the multimedia controller for the undirected Bluetooth-low-energy advertisements.