Apparatus and method for controlling taillight of vehicle, capable of brightness control and visible light wireless communication
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United States of America Patent
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Jan 26, 2016
Grant Date -
Jan 8, 2015
app pub date -
Jun 17, 2014
filing date -
Jul 8, 2013
priority date (Note) -
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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.
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