Inter-device communications using visible light

Patent metadata

Field	Value
Publication number	US-9288525-B2
Application number	US-201113695012-A
Country	US
Kind code	B2
Filing date	Apr 26, 2011
Priority date	Apr 27, 2010
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

A visual light communication (VLC) medium is used to provide communicative coupling between two or more devices. The communicative coupling supports a variety of functions such as, for example, device discovery, content discovery, and seamless transfer of media between the two or more devices.

First claim

What is claimed:

1. A method comprising:
displaying, via visible light, media on a first device, the visible light being originated by a light source, the light source being configured to provide the media on the first device using the visible light produced thereby and to be modulated to provide a visual light communication (VLC) medium, the VLC medium being configured to enable the first device to establish communication with a second device using data or information provided by the visible light from the light source being modulated;
providing a wake up message from the first device to the second device over an infrared communication medium such that the second device is transitioned out of a sleep mode upon receipt thereof; and
concurrently providing from the first device, via the visible light from the light source being modulated, the data or information to be used to establish communications between the first device and the second device.

2. The method of claim 1 , wherein concurrently providing the data or information comprises:
providing a device identity from the first device to the second device;
receiving a message at the first device from the second device in response to the device identity; and
using the message to discover presence of the second device.

3. The method of claim 2 , wherein the first device is a video display and the second device is a mobile phone.

4. The method of claim 1 , wherein concurrently providing the data or information comprises:
providing metadata associated with the media.

5. The method of claim 1 , wherein concurrently providing the data or information comprises:
providing a content-related information from the first device;
receiving the content-related information in the second device; and
using the received content-related information to identify in the second device, a bookmark associated with a multimedia application being executed in the first device.

6. The method of claim 1 , wherein concurrently providing the data or information comprises:
using a handover procedure to initiate the transfer of execution of at least a portion of a multimedia application from the first device to the second device.

7. The method of claim 6 , wherein the handover procedure comprises:
identifying a handover opportunity to initiate transfer of execution of the at least a portion of the multimedia application from the first device to the second device.

8. The method of claim 6 , wherein the multimedia application comprises streaming media; and wherein the handover procedure comprises providing at least a portion of the streaming media on the first device to the second device.

9. A system comprising:
a first device configured to render media thereon, the first device comprising a light source, the light source being configured to render the media on the first device using visible light produced thereby and to be modulated to provide a visual light communication (VLC) medium, the VLC medium being configured to enable the first device to establish communication with one or more devices via the visible light from the light source being modulated, the first device further configured to provide a wake-up message over an infrared communication medium to transition one or more devices out of a sleep mode upon receipt thereof; and
a second device communicatively coupled to the first device via the visible light from the light source being modulated, the second device configured to receive the wake-up message provided by the first device over the infrared communication medium and mobility information provided by the first device over the visible light from the light source being modulated and to use the mobility information to transfer at least a portion of the media from the first device to the second device for rendering in the second device.

10. The device of claim 9 , wherein the mobility information a handover procedure to seamlessly transfer the at least a portion of the media from the first device to the second device.

Assignees

• Castor Douglas R
• Shah Kandarp
• Gazda Robert G
• Doken Serhad
• Interdigital Patent Holdings

Inventors

• Castor Douglas R
• Shah Kandarp
• Gazda Robert G
• Doken Serhad

Classifications

• H04B10/1149

  Arrangements for indoor wireless networking of information · CPC title

• H04B10/116

  Visible light communication · CPC title

• H04N21/4126 Primary

  The peripheral being portable, e.g. PDAs or mobile phones · CPC title