Patent ID: 6317465
Filing Date: 2001-11-13
Classification: H04L

Abstract:
A data transmission system for differential transmission of each of first and second data bits, said system comprising:a transmitting unit for transmitting said first and second data bits;a receiving unit for receiving said first and second data bits; anda first data line, a second data line, and a reference line each disposed between said transmitting unit and said receiving unit,said transmitting unit having the functions of:when said first and second data bits have different values, supplying a voltage representing the value of said first data bit onto said first data line and a voltage representing the value of said second data bit onto said second data line such that said second data line serves as a transmission path complementary to said first data line and that said first data line serves as a transmission path complementary to said second data line; andwhen said first and second data bits have equal values, supplying a voltage representing each of the values of said first and second data bits onto each of said first and second data lines and a voltage representing a value obtained by inverting each of said first and second data bits onto said reference line such that said reference line serves as a transmission path complementary to each of said first and second data lines.