Cell phone external device based on visible light communication

A technology of visible light communication and mobile phone, which is applied in the field of visible light communication and can solve the problems that mobile phones do not have signal lights

Active Publication Date: 2012-11-07
KUANG CHI INTELLIGENT PHOTONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the visible light communication system includes a transmitting terminal and a receiving control terminal. The mobile phone can be used as the transmitting terminal to transmit visible light signals, but some mobile phones do not have signal lights

Method used

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  • Cell phone external device based on visible light communication
  • Cell phone external device based on visible light communication
  • Cell phone external device based on visible light communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see figure 1 , is a schematic structural diagram of a mobile phone peripheral device based on visible light communication provided by Embodiment 1 of the present invention. The mobile phone peripheral device 11 includes a housing 11a; It may be a USB interface, or an interface that matches the voice interface of the mobile phone, and is set according to specific requirements.

[0025] The conversion chip 11c placed in the casing and connected to the interface 11b is used to convert information such as address book, audio and video, mobile phone authentication, access control and mobile payment sent by the mobile phone into binary data. In a specific implementation process, the conversion chip 11c can convert the received information into binary data, and then convert the binary data into the upper and lower edge trigger signals according to the Manchester encoding method. For example, in a time period, the binary data "1" is converted into a rising edge trigger signal,...

Embodiment 2

[0029] see figure 2 , is a schematic structural diagram of a mobile phone peripheral device based on visible light communication provided by Embodiment 2 of the present invention. Compared with Embodiment 1, it also includes a transparent dustproof cover 11e corresponding to the light emitter 11d, and the transparent dustproof cover 11e may be a condenser .

[0030] In this embodiment, the dust cover 11e is added, on the one hand, it can protect the light emitter 11d; on the other hand, it can converge the optical signals, so that the effective transmission distance can be improved.

Embodiment 3

[0032] see image 3 , is a schematic structural diagram of a mobile phone peripheral device based on visible light communication provided by Embodiment 3 of the present invention. Compared with Embodiment 2, it also includes a storage unit 11f connected to the conversion chip 11c for storing information sent by the mobile phone.

[0033] In this embodiment, the mobile phone peripheral device 11 can be used as an external memory of the mobile phone 12 to further improve user experience.

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Abstract

The invention discloses a cell phone external device based on visible light communication, which is characterized by comprising an interface connected with a cell phone, a conversion chip connected with the interface and used for converting information sent from the cell phone into binary data, and an illuminator connected with the conversion chip and used for transmitting the binary data in a sparking manner. The cell phone external device achieves visible light transmitting function of cell phones without signal lights, thereby improving user experience.

Description

technical field [0001] The present invention relates to the technical field of visible light communication, in particular to a mobile phone peripheral device based on visible light communication. Background technique [0002] Visible light communication is a new, short-distance, high-speed wireless optical communication technology developed on the basis of LED technology. The basic principle of visible light communication is to use the characteristics of light-emitting diodes (LEDs) to switch faster than fluorescent lamps and incandescent lamps, and to communicate through high-frequency flickering of LED light sources. Light represents 1, and no light represents 0, sending out high-speed optical signals. The information is obtained through photoelectric conversion. Wireless optical communication technology can be used to make wireless optical encryption keys because its data is not easy to be interfered and captured, and optical communication equipment is simple to manufact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02H04M1/21H04B10/04
Inventor 刘若鹏栾琳刘敏孙文超
Owner KUANG CHI INTELLIGENT PHOTONIC TECH
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