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Registered APPARATUS AND METHOD FOR CONTROLLING TAILLIGHT OF VEHICLE, CAPABLE OF BRIGHTNESS CONTROL AND VISIBLE LIGHT WIRELESS COMMUNICATION
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APPARATUS AND METHOD FOR CONTROLLING TAILLIGHT OF VEHICLE, CAPABLE OF BRIGHTNESS CONTROL AND VISIBLE LIGHT WIRELESS COMMUNICATION
- Inventors
- Lim Sang-Kyu, Kim Myung Soon, Jin Doo Jeong, Jang Il-Soon, Kang Tae-Gyu
- Application No.
- 14306786 (2014.06.17)
- Publication No.
- 20150008823 (2015.01.08)
- Registration No.
- 9242595 (2016.01.26)
- Country
- UNITED STATES
- Project Code
- 13VC1200, A visible light communication (VLC) technology and 550mA class 130 nano second switching fusion-technology VLC-LED lighting module development for bot, Kang Tae-Gyu
- Abstract
- An apparatus and method for controlling the taillight of a vehicle are disclosed. The apparatus includes a visible light wireless communication data generation unit, a brightness control unit, a variable pulse position modulation (VPPM) signal generation unit, and a light source. The visible light wireless communication data generation unit generates information about the operation of a vehicle. The brightness control unit generates a brightness control value that is used to control the brightness of a light source installed at the tail of the vehicle. The variable pulse position modulation (VPPM) signal generation unit controls a pulse position and a pulse width within a unit pulse section of a pulse that controls the light source based on the information about the operation of the vehicle and the brightness control value.