Method and apparatus for transmitting and receiving data using visible light communication

1. A transmitting apparatus of data using visible light communication, the transmitting apparatus comprising:

a code generator that converts transmission data to a two-dimensional data code according to a predetermined code method between the transmitting apparatus and a receiving apparatus;

a modulation unit that generates a modulation signal by modulating the two-dimensional data code;

a plurality of light emitting diodes (LED) that are arranged in a two-dimensional form and that emit light when turned on;

a light source driver that controls a state of turn-on of the plurality of LEDs according to the modulation signal; and

a controller that performs a motion control when a size of the transmission data is larger than a size of maximum data to be transmit by the plurality of LEDs,

wherein the transmission data is transmitted according to the state of turn-on of the plurality of LEDs,

wherein the code generator divides the transmission data into a predetermined size according to the motion control, generates each data into a two-dimensional data code, and sequentially outputs each two-dimensional data code to the modulation unit,

wherein the each two-dimensional data code has different color and pattern.

2. The transmitting apparatus of claim 1 , further comprising a flicker and color compensation unit that compensates a color of the two-dimensional data code using dimming data and color data of lighting control information that is input from the outside.

3. The transmitting apparatus of claim 1 , further comprising a flicker and color compensation unit that removes a flicker from the two-dimensional data code by generating a flicker removal code using dimming data and color data of lighting control information that is input from the outside.

4. The transmitting apparatus of claim 3 , wherein light quantity energy of the two-dimensional data code is distributed to the periphery by the flicker removal code.

5. A method of transmitting data using visible light communication in a transmitting apparatus, the method comprising:

generating transmission data into a two-dimensional data code according to a predetermined code method between the transmitting apparatus and a receiving apparatus;

modulating the two-dimensional data code into a modulation signal; and

emitting light by controlling a state of turn-on of a plurality of LEDs that are arranged in a two-dimensional form according to the modulation signal,

wherein the transmission data is transmitted according to the state of turn-on of the plurality of LEDs,

wherein the generating of transmission data comprises dividing, if a size of the transmission data is larger than a predetermined threshold value, the transmission data into a plurality of data having a predetermined size by performing a motion control and converting the plurality of data to a plurality of two-dimensional data codes, respectively.

6. The method of claim 5 , further comprising removing a flicker from the two-dimensional data code and compensating a color change before the modulating of the two-dimensional data code.

7. The method of claim 6 , wherein the compensating of a color change comprises

generating a flicker removal code for removing the flicker and a color compensation code for compensating the color change according to color data and dimming data of lighting control information that is input from the outside; and

combining the flicker removal code and the color compensation code to the two-dimensional data code.

8. The method of claim 5 , wherein the plurality of two-dimensional data codes have different colors and patterns.