Visible light communication device

A variable impedance circuit (2) has an impedance device and is connected in series with a light source (A1). A switch circuit (Q1) is connected in parallel with the variable impedance circuit (2). A first controller (3) is configured to perform ON and OFF control of the switch circuit (Q1) and ther...

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1. Verfasser:	KIDO SHOJIROU
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY TRANSMISSION
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creator	KIDO SHOJIROU
description	A variable impedance circuit (2) has an impedance device and is connected in series with a light source (A1). A switch circuit (Q1) is connected in parallel with the variable impedance circuit (2). A first controller (3) is configured to perform ON and OFF control of the switch circuit (Q1) and thereby to modulate an intensity of an illumination light emitted from the light source (A1). An impedance-varying circuit (Q2) is connected with the variable impedance circuit (2). The second controller (4) is configured to control the impedance-varying circuit (Q2) to change the impedance of the variable impedance circuit (2). The first controller (3) and the second controller (4) share a common hardware.
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A first controller (3) is configured to perform ON and OFF control of the switch circuit (Q1) and thereby to modulate an intensity of an illumination light emitted from the light source (A1). An impedance-varying circuit (Q2) is connected with the variable impedance circuit (2). The second controller (4) is configured to control the impedance-varying circuit (Q2) to change the impedance of the variable impedance circuit (2). 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subjects	ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY TRANSMISSION
title	Visible light communication device
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