APPARATUS AND METHOD FOR CONTROLLING TAILLIGHT OF VEHICLE, CAPABLE OF BRIGHTNESS CONTROL AND VISIBLE LIGHT WIRELESS COMMUNICATION
First Claim
1. A method of controlling a taillight of a vehicle, comprising:
- generating information about an operation of a vehicle;
generating a brightness control value that is used to control brightness of a light source installed at a tail of the vehicle; and
controlling 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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Accused Products
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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Citations
18 Claims
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1. A method of controlling a taillight of a vehicle, comprising:
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generating information about an operation of a vehicle; generating a brightness control value that is used to control brightness of a light source installed at a tail of the vehicle; and controlling 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for controlling a taillight of a vehicle, comprising:
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a visible light wireless communication data generation unit configured to generate information about an operation of a vehicle; a brightness control unit configured to generate a brightness control value that is used to control brightness of a light source installed at a tail of the vehicle; a variable pulse position modulation (VPPM) signal generation unit configured to control 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; and a light source configured to convert a data signal into an optical signal and to provide the data signal to a following vehicle. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification