Patent ID: 6304600
Filing Date: 2001-10-16
Classification: H04L

Abstract:
A modulation/demodulation method so configured that at a transmitter side, data is transmitted after an input signal is converted into a modulation signal train comprising serially arranged words each comprising bits of a predetermined number larger than a bit number of the input signal, and a position of a pulse existing in the word is different from one pattern of the input signal to another,wherein, at the transmitter side, the input signal is divided into signal strings each comprising ""n"" bits, where ""n"" is a positive integer larger than ""1"", and each signal string comprising ""n"" bits is converted into a modulation signal string of one word comprising ""n+1"" bits, and then, the modulation signal string is serially transmitted bit by bit, andwherein, at a receiver side, the signal serially received bit by bit is divided into received signal strings each comprising ""n+1"" bits, and each of the received signal strings is demodulated into a demodulated signal string comprising ""n"" bits, so that the demodulated signal string is serially outputted bit by bit.