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Apparatus and method for data embedding in light communication and the light communication system and method thereof

A technology of optical communication and data, applied in the field of optical communication system

Active Publication Date: 2014-07-02
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Challenges exist in these solutions for using devices to simultaneously perform image or video display and optical communication

Method used

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  • Apparatus and method for data embedding in light communication and the light communication system and method thereof
  • Apparatus and method for data embedding in light communication and the light communication system and method thereof
  • Apparatus and method for data embedding in light communication and the light communication system and method thereof

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Embodiment Construction

[0040] Hereinafter, example embodiments will be described in detail with reference to the accompanying drawings so that the example embodiments can be easily realized by those having general knowledge in the art. The inventive concept can be implemented in various forms without being limited to the example embodiments described herein. Descriptions of well-known parts are omitted for clarity, and the same reference numerals refer to the same elements throughout.

[0041] Example embodiments of the present disclosure provide techniques for data embedding in optical communication in order to simultaneously perform image or video display and optical communication. This technique employs a data embedding technique for communication-processed data before applying the communication-processed data to a light emitting device or an image / video display device. As opposed to directly applying communication-processed data to lighting device driving (eg, LED driving), disclosed example em...

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Abstract

In a light communication system, a data embedding unit arranged between a transmitter-side communication data processing unit and a light emitting device driver embeds a communication processed data at a spatial domain of an original image according to a modulation scheme, and gets multiple RGB values for a communication data embedded image. A receiving apparatus detects a transmitter-side communication data embedded image, generates a receiver-side communication data embedded image, compensate a deformation of the receiver-side communication data embedded image, outputs a warped communication data embedded image, and extracts a communication processed data from the warped communication data embedded image.

Description

technical field [0001] The present disclosure generally relates to an apparatus and method for data embedding in optical communication and an optical communication system and method thereof. Background technique [0002] Optical communication is a wireless communication technology using light visible to humans with a frequency between 400 THz and 800 THz. RF bandwidth is a scarce resource. Therefore, visible light communication can provide an alternative technology to meet the strong demand for wireless communication. For example, visible light emitted from one or more light emitting diodes (LEDs) is widely used in homes and offices, thus making visible light emitted from one or more LEDs ideal for ubiquitous data transmitters. Figure 1A with Figure 1B Schematic diagrams of two example types of white LEDs are shown separately. Figure 1A An example white LED using a blue LED 110 and a yellow phosphor 115 is shown. Yellow phosphor 115 limits the modulation bandwidth to n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116
CPCH04B10/116
Inventor 陈佳苹萧昌龙陈仁智徐沛玮
Owner IND TECH RES INST