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Photovoltaic receiver device with polarisation management in order to inc.rease the bandwidth of an optical communication

A technology of communication equipment and wireless communication equipment, which is applied in the field of bias photovoltaic receiving modules, and can solve problems such as the absence of photoelectric receiving systems or photoelectric receivers

Inactive Publication Date: 2018-04-03
SUNPARTNER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] But there is no optoelectronic receiving system or optoelectronic receiver capable of simultaneously functioning in various environments such as those described below in the prior art:

Method used

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  • Photovoltaic receiver device with polarisation management in order to inc.rease the bandwidth of an optical communication
  • Photovoltaic receiver device with polarisation management in order to inc.rease the bandwidth of an optical communication
  • Photovoltaic receiver device with polarisation management in order to inc.rease the bandwidth of an optical communication

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Embodiment Construction

[0050] refer to figure 1 , which is a schematic diagram of the principle of the target receiving device of the present invention. Module 1 is a photovoltaic module, preferably translucent. It then consists of a plurality of opaque photovoltaically active regions separated by transparent regions. It is illuminated by a LiFi emitter 7 emitting a modulated light signal 5 . An analog / digital converter 3 electrically connected to said photovoltaic module 1 makes it possible to convert the analog signal delivered by the photovoltaic module 1 into a digital signal. The processing module 4 receives at an input the digital signal from the analog / digital converter 3 . It is connected to a sensor (not represented) which enables the measurement of continuous, that is to say unmodulated, ambient light. In addition to natural ambient light, a continuous light source can be used for generating the bias voltage V by the photovoltaic effect p . A light source that is not modulated in am...

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Abstract

The invention relates to a wireless communication device which uses light, comprising at least: a light source (7) emitting a modulated light signal (5); a photovoltaic module (1) capable of receivingsaid modulated light signal (5); and an analog-to-digital converter (3) electrically connected to the output terminals of said photovoltaic module (1), making it possible to convert the analog signaloutput by the photovoltaic module into a digital signal; characterised in that it also comprises a means (2) for polarising said photovoltaic module (1) making it possible to generate a polarisationvoltage (Vp) applied to the terminals of said photovoltaic module (1), and a management module (4) capable of optimising said polarisation voltage (Vp) into a threshold voltage (Vs) corresponding to an improved signal-to-noise ratio (SNR) and communication bandwidth.

Description

technical field [0001] The invention relates to communication devices via visible and invisible light (infrared and ultraviolet) of the VLC (acronym for "Visible Light Communication") type, and more particularly to biasing photovoltaic receiver modules so that the communication conveys Quantity is optimized. Background technique [0002] Communication devices, either through visible light (VLC or LiFi) or through invisible light, use light for transferring information between two remote points. In particular, communication systems via visible light generally comprise electroluminescent diodes (often designated by their English acronym "LED") or modules comprising LEDs as transmitting means and photodetectors as receiving means. [0003] LEDs emit a luminous flux having a characteristic emission spectrum different from the spectrum of natural light. The luminous flux is measured by Lux, the modulated luminous flux emitted by the LED will be labeled as Lux LiFi. Lux LiFi is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116
CPCH04B10/116Y02B10/10Y02E10/50H02S20/22H02S30/10
Inventor E.比亚利克
Owner SUNPARTNER TECH