Data coding method for reducing skew of transmission data, encoding device and decoding device using the method, and transceiver with the encoding device and the decoding device and transmission and reception method

The data coding method and the transmitting and receiving device and a transmitting and receiving method comprising them and this encoding apparatus and a decoding apparatus using reduce the skew of the transmitted data is disclosed. A data coding method is a coding method of the data for transmission and reception in the voltage range according to the present invention, (a) of the first number of the first number of the first set 1, the serial data signal containing a bit indicating the voltage level of the set converting a first parallel data signal containing a bit indicating a voltage level; (B) the first and coding through a mapping function, the parallel data signal (functional mapping) and the first change the number of voltage level bits are shown to be included in the parallel data signal, a bit representing a voltage level of 2 is set and outputting the second parallel data signal comprising; And (c) it is characterized in that it comprises a step of converting a second serial data signal that includes the second bit indicating the voltage level of the number of the second set of parallel data signals. Data coding method and transmission apparatus and a transmission and reception method comprising them and this encoding apparatus and a decoding apparatus using according to the invention has the advantage of reducing the skew of the transfer data and, to reduce power consumption.