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Regenerative device, regeneration method and system

A technology of a reproduction device and a generation unit, which can be applied to transmission systems, short-range systems, electromagnetic wave transmission systems, etc., and can solve problems such as not being able to reproduce well

Active Publication Date: 2019-03-19
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] When the information is reproduced from the light on which the information is superimposed, it may not be reproduced satisfactorily.

Method used

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  • Regenerative device, regeneration method and system
  • Regenerative device, regeneration method and system
  • Regenerative device, regeneration method and system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0036] figure 1 The information distribution system of embodiment is shown. figure 1 The illustrated information distribution system 100 includes a lighting device 110 , an object 130 , a reproduction device 150 , and a server device 170 .

[0037] The lighting device 110 includes, for example, light emitting elements (for example, LEDs) corresponding to the respective components of RGB. Information 125 specified by controlling the light emission amount and phase of the light emitting element is superimposed on the illumination light 115 (solid line) emitted from the illumination device 110 as a watermark signal.

[0038] At least a part of the illumination light 115 is irradiated to the object 130 as the illumination light 120 (dashed line), and the reflected light 140 (dashed line) caused by the reflection of the illumination light 120 by the object 130 is received by the playback device 150 .

[0039] The reproduction device 150 has an imaging unit (camera), and the objec...

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PUM

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Abstract

The disclosed reproducing device is a reproducing device that receives the light emitted by the plurality of signals that are composed of at least a plurality of signals having a specific amplitude in a specific color space and that overlaps information, and reproduces the superimposed information, and has: A generation unit that generates a plurality of signals in the specified color space based on the received light; a correction unit that corrects the generated signals based on the specified amplitude; and an acquisition unit that acquires signals based on the corrected signals. the above information.

Description

technical field [0001] The present application relates to a regeneration device, a regeneration method, a program, and a system. Background technique [0002] A light emitting diode (Light Emitting Diode, LED) is widely used as an illumination light source. Compared with incandescent lamps or fluorescent lamps, LEDs have a characteristic of faster response speed. Taking advantage of this feature, a visible light communication technology is being studied that performs communication by superimposing information on illumination light emitted from the LED by blinking the LED at a speed that cannot be recognized by human eyes. In addition, studies have been made on communication applications in places where the use of radio waves is restricted, information distribution that limits the reach of light such as indoors, or the use of visible light communication in intelligent transmission systems (ITS) and the like (for example, Non-Patent Document 1). [0003] However, an informat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/116H04N5/225
CPCH04B10/116H04N23/00H04N25/611H04N23/86H04B10/502H04N9/68
Inventor 加藤圭造仓木健介田中龙太中川章
Owner FUJITSU LTD