Patent ID: 6381054
Filing Date: 2002-04-30
Classification: H04B

Abstract:
An optical transmission system comprising:in the transmitting side thereof, first edge detecting means and second edge detecting means for detecting a rise edge and a fall edge of a signal waveform to be transmitted, respectively; first transmitting pulse generating means for generating a first transmitting pulse signal constituted by a pair of opposite-polarity pulses, the opposite-polarity pulse pair inverting in their polarities at the point of the rise edge detection timing by said first edge detecting means; second transmitting pulse generating means for generating a second transmitting pulse signal constituted by a pair of opposite-polarity pulses, the opposite-polarity pulse pair inverting in their polarities at the point of the fall edge detection timing by said second edge detecting means; first light intensity modulation means for generating a first light intensity modulated signal based on said first transmitting pulse signal; and second light intensity modulation means for generating a second light intensity modulated signal based on said second transmitting pulse signal; and in the receiving side thereof, first AC-coupled receiving means for receiving said first light intensity modulated signal to obtain a first received signal consisting of only an AC component extracted from said first light intensity modulated signal; second AC-coupled receiving means for receiving said second light intensity modulated signal to obtain a second received signal consisting of only an AC component extracted from said second light intensity modulated signal; first discriminating means for discriminating the rise timing from said first received signal; second discriminating means for discriminating the fall timing from said second received signal; and signal regenerating means for regenerating the rise edge and fall edge relating to said signal waveform to be transmitted on the basis of said discriminated rise timing and the fall timing.