The signal transmission device converts a K-bit original signal into an N-bit (N is greater than K) transmission signal in which the number of a logic high bit is identical to the number of a logic low bit, according to a lookup table in which a plurality of K-bit original signals are associated with a plurality of N-bit transmission signals by 1:1 correspondence, and transmit the N-bit transmission signal via N signal lines such that each line carries one bit, thereby minimizing the noise affecting the K-bit original signal.

A signal transmission device and method, and a signal reception device are disclosed. The disclosed signal transmission device comprises a bit signal generating unit for generating N (an even integer greater than K) second bit signals corresponding to one of the signals transmitted from K (one or more integers) first bit signals corresponding to one of the original signals; and a transmitting unit for transmitting the N second bit signals via N signal lines, wherein the number of the original signals and the number of the transmission signals are the same and each of the original signals and each of the transmission signals are matched at 1:1, and the bit signal generating unit generates the N second bit signals from the K first bit signals based on the 1:1 matching relationship between the original signal and the transmission signal, wherein N/2 second bit signals of the N second bit signals are set to have a high voltage and remaining N/2 second bit signals of the N second bit signals are set to have a low voltage.

Transport of differential signals is provided. In one aspect, a telecommunications system includes a first unit and a second unit. The first unit can calculate a differential signal from an original signal. The differential signal can represent a change in signal levels between constant time intervals in the original signal. The second unit can estimate the original signal from the differential signal received from the first unit over a communication medium.

Transport of differential signals is provided. In one aspect, a telecommunications system includes a first unit and a second unit. The first unit can calculate a differential signal from an original signal. The differential signal can represent a change in signal levels between constant time intervals in the original signal. The second unit can estimate the original signal from the differential signal received from the first unit over a communication medium.

Transport of differential signals is provided. In one aspect, a telecommunications system includes a first unit and a second unit. The first unit can calculate a differential signal from an original signal. The differential signal can represent a change in signal levels between constant time intervals in the original signal. The second unit can estimate the original signal from the differential signal received from the first unit over a communication medium.