System for high frequency digital data transmission

摘要

A system is disclosed for transmitting digital data at high frequencies which minimizes distortion of the transmitted signal. The system includes an encoding circuit for converting the bit pattern to be transmitted into an improved two-frequency differential signal wherein each bit is represented by at least one full cycle of the differential signal. The differential signal cycle for a zero is comprised of the sum of a bit signal representing a zero and the reciprocal of the bit signal delayed by one fourth of the bit cell and similarly a one is represented by the sum of the bit signal representing a one and the reciprocal of the bit signal also delayed by one fourth of a bit cell. In addition the system includes a receiver circuit for converting the two-frequency differential signal received over a transmission line into a signal directly representing the original bit pattern.