WiFi display compatible network gateway

Patent metadata

Field	Value
Publication number	US-10187925-B2
Application number	US-201414305475-A
Country	US
Kind code	B2
Filing date	Jun 16, 2014
Priority date	Jun 17, 2013
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

The invention relates to a method and a device for interconnection in a network gateway comprising a first wireless communication interface and a second interface adapted to the implementation of content sharing operations using an interoperability protocol, the method comprising steps of transmission, by the first interface, of at least one information element aiming to enable the gateway to be detected by a remote equipment as being compatible with a function for reproduction using a wireless communication interface, of reception of data frames defined in a link layer of a wireless network protocol, the data frames comprising an item of audiovisual content and being received from a second remote device connected to the first interface by means of a wireless connection and of transmission of the content received at said second interface to a reproduction device.

First claim

The invention claimed is:

1. An interconnection device comprising:
a first communication interface configured to communicate wirelessly over a local area network;
a second communication interface configured to share content over the local area network in accordance with an interoperability protocol for local area networks;
control circuitry configured to:
transmit, via the first communication interface using wireless communication to a first remote device, at least one information element to enable said interconnection device otherwise incompatible with a function for audiovisual reproduction to be detected by a first remote device as an audiovisual content reproduction device that is compatible with a function for reproduction using a wireless communication interface, said interconnection device acting as a proxy for a second device communicatively connected over the local area network to the second communication interface of the interconnection device;
receive, from said first remote device using wireless communication via the first communication interface, data frames defined in a link layer of a wireless network protocol, said data frames comprising data representing audiovisual content; and
transmit, via the second communication interface, said audiovisual content to said second device, wherein the second device is configured to reproduce said audiovisual content by an implementation of functions defined in said interoperability protocol adapted to sharing content with equipment connected to a same local area network, and wherein said interconnection device facilitates a transfer of audiovisual content between the first remote device and the second device, which are both otherwise incompatible for realizing said transfer directly therebetween.

2. The interconnection device according to claim 1 wherein said interoperability protocol for local area networks is defined according to an UPnP/DLNA standard.

3. The interconnection device according to claim 1 wherein said link layer of the wireless network protocol is a MAC layer.

4. The interconnection device according to claim 1 , wherein said at least one information element for detection of said interconnection device by the first remote device is defined in a features declaration service comprised in a peer-to-peer wireless communication standard.

5. The interconnection device according to claim 1 , wherein said at least one information element for detection of said interconnection device by the first remote device is an information element IE of a MAC network layer, as defined in a peer-to-peer wireless communication standard.

6. The interconnection device according to claim 1 , wherein said function for reproduction using a wireless connection interface is defined in a standard for display forwarding via a wireless communication interface.

7. The interconnection device according to claim 1 , wherein said control circuitry is configured to transmit said audiovisual content by adapting a format of the data frames and/or transcoding said audiovisual content.

8. The interconnection device according to claim 7 , wherein the adapting of the format of the data frames is configured as a transition from a format compatible with a standard for display forwarding via a wireless communication interface to a format compatible with an UPnP/DLNA standard.

9. The interconnection device according to claim 7 , wherein the transcoding of said audiovisual content is configured as a transition from a format compatible with an H.264 standard to a format compatible with an MPEG2 standard.

10. An interconnection method to be performed in a network gateway comprising both a first communication interface configured to communicate wirelessly over a local area network and a second communication interface configured to share content over the local area network in accordance with an interoperability protocol for local area networks, said method comprising:
transmitting, by the first communication interface of the network gateway using wireless communication, at least one information element to enable said network gateway otherwise incompatible with a function for audiovisual reproduction to be detected by a first remote device as an audiovisual content reproduction device that is compatible with a function for reproduction using a wireless connection interface, said interconnection device network gateway acting as a proxy for a second device communicatively connected over the local area network to the second communication interface of the network gateway;
receiving, from said first remote device using wireless communication by the first communication interface, data frames defined in a link layer of a wireless network protocol, said data frames comprising data representing audiovisual content; and
transmitting, by the second communication interface of said network gateway, said audiovisual content to said second device, wherein the second device is configured to reproduce said audiovisual content, by an implementation of functions defined in said interoperability protocol adapted to share content with equipment connected to a same local area network, and wherein said network gateway facilitates a transfer of audiovisual content between the first remote device and the second device, which are both otherwise incompatible for realizing said transfer directly therebetween.

11. The interconnection method according to claim 10 , wherein said interoperability protocol for local area networks is defined according to an UPnP/DLNA standard.

12. The interconnection method according to claim 10 , wherein said link layer of the wireless network protocol is a MAC layer and that said information element for detection of said network gateway by the remote equipment as being compatible with the function for reproduction using the wireless connection interface is defined in a features declaration service comprised in a peer-to-peer wireless communication standard.

13. The interconnection method according to claim 10 , wherein said function for reproduction using the wireless connection interface is defined in a standard for display forwarding via a wireless communication interface.

14. The interconnection method according to claim 10 , wherein the transmitting of said content further comprises adapting a format of the data frames and/or transcoding said audiovisual content.

15. The interconnection method according to claim 14 , wherein the adapting of the format of the data frames corresponds to a transition from a format compatible with a standard for display forwarding via a wireless communication interface to a format compatible with an UPnP/DLNA standard.

16. The interconnection method according to claim 14 , wherein the transcoding of said audiovisual content corresponds to a transition from a format compatible with an H.264 standard to a format compatible with an MPEG2 standard.

17. An interconnection device comprising:
a first communication interface configured to communicate wirelessly over a local area network;
a second communication interface configured to share content over the local area network in accordance with an interoperability protocol for local area networks;
control circuitry configured to:
transmit, via the first communication interface using wireless communication to a first remote device, at least one information element to enable said interconnection device otherwise incompatible with a function for reproduction to be detected by a first remote device as an audiovisual content reproduction device that is compatible with a function for reproduction

Assignees

• Thomson Licensing
• Interdigital Ce Patent Holdings

Inventors

• Fontaine Patrick
• Jeanne Ludovic

Classifications

• H04L12/2836 Primary

  Protocol conversion between an external network and a home network (controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24) · CPC title

• H04L2012/2841

  Wireless · CPC title

• H04L12/2838

  Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths (adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24) · CPC title

• H04L61/2582

  through control of the NAT server, e.g. using universal plug and play [UPnP] · CPC title

• H04W80/00 Primary

  Wireless network protocols or protocol adaptations to wireless operation · CPC title