Invention Grant
- Patent Title: Visible light communication device and visible light communication system
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Application No.: US15893595Application Date: 2018-02-10
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Publication No.: US10084540B2Publication Date: 2018-09-25
- Inventor: Shojiro Kido , Shigeaki Yamasaki
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Renner Otto Boisselle & Sklar, LLP
- Priority: JP2017-033813 20170224
- Main IPC: H04B10/00
- IPC: H04B10/00 ; H04B10/116 ; H04B10/80 ; H04B10/50

Abstract:
A visible light communication device includes: a light emitting device that emits visible light when current flows thereto; a power supply circuit that supplies the current that flows to the light emitting device; a switch that switches between ON and OFF states in which current does and does not flow to the light emitting device, respectively; a switch controller that controls the switch state; a voltage detector that detects an input voltage of the light emitting device; a threshold storage that stores information stipulating a threshold voltage; and a determiner that, when the switch is in the ON state and the voltage detector detects an ON voltage, determines whether the ON voltage satisfies a predetermined relationship with the threshold voltage stipulated by the information stored in the threshold storage. The switch controller further latches the switch in the OFF state when the determination by the determiner is affirmative.
Public/Granted literature
- US20180248622A1 VISIBLE LIGHT COMMUNICATION DEVICE AND VISIBLE LIGHT COMMUNICATION SYSTEM Public/Granted day:2018-08-30
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