Visible light communication transceiver and system

A visible light communication and transceiver technology, applied in electromagnetic transceivers, short-distance systems, light sources, etc.

Active Publication Date: 2013-09-18
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional visible light communication system can only provide one-way (or downlink, Downstream) transmission communication of about Kb / s level

Method used

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  • Visible light communication transceiver and system
  • Visible light communication transceiver and system
  • Visible light communication transceiver and system

Examples

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Embodiment Construction

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] figure 1 It is a functional block diagram illustrating a visible light communication system according to an embodiment of the present invention. The visible light communication system includes at least a first electronic device 10 and a second electronic device 20. The first electronic device 10 includes at least a communication modulation circuit 11 and a first visible light communication transceiver 12, and the second electronic device 20 includes at least a communication modulation circuit 21 and a second visible light communication transceiver 22. The communication modulation circuit 11 converts the transmission data into a visible light communication signal through the first visible light communication transceiver 12, and the first visible light communication transceiver 12 transmits the visible light communication signal to the second visible light ...

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PUM

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Abstract

A visible light communication (VLC) transceiver and a VLC system are provided. The VLC transceiver includes a substrate, a lens module and a plurality of channel units. The channel units are disposed on the substrate in an array to provide different bidirectional communication channels. Wherein, each of the channel units respectively includes at least a visible light emitter and at least a visible light receiver. The channel units can enhance communication bandwidth by using modulation technology such as spatial multiplexing or time multiplexing. The lens module is disposed on an optical path of the channel units. The lens module actively tracks the receiving situation of the visible light receiver to improve the signal quality of high-speed multiplexing communication.

Description

Technical field [0001] The present invention relates to a communication transceiver and system, and particularly relates to a visible light communication transceiver and a visible light communication system. Background technique [0002] As Light Emitting Diode (LED) lighting becomes more and more popular, the high-speed modulation characteristics of LEDs promote the potential of LEDs in Visible Light Communications (VLC) to cause widespread concern. The traditional visible light communication system can only provide one-way (or downstream, Downstream) transmission communication of about Kb / s level. [0003] The visible light communication system has many advantages such as shorter transmission distance, smaller coverage area (Cell Coverage), information security, immunity to EMI interference, no frequency band usage license, and the ability to provide indoor lighting (Lighting). Therefore, how to provide a two-way, high-speed (for example, greater than 100Mb / s) visible light comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B10/40G02B6/42H05B44/00
CPCH04B10/116H05B45/10H05B45/46
Inventor 赵嘉信叶文勇杨泓斌
Owner IND TECH RES INST
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