CONSECUTIVE IDENTICAL DIGIT SUPPRESSION SYSTEM IN A DIGITAL COMMUNICATION SYSTEM

摘要

TITLE OF THE INVENTION Consecutive Identical Digit Suppression System in a Digital Communication System An encoder for suppression of a consecutive identical digit in a digital transmission system facilitates the reproduction of a clock signal for regenerating reception data, and keeping the average signal level constant. According to the present invention, a single bit (x) is inserted for every predetermined number (m) of input digits, and said insertion bit is a complement of the sign of the previous k bits where k is an integer satisfying 1?k?m. Preferably, the value k is 1. The present invention is useful for digital communications higher than 100 Mbits/second, in particular, in optical communications.