Patent ID: 7747170
Filing Date: 2010-06-29
Classification: H04J

Abstract:
1. An optical code division multiplexing transmission/reception method, comprising: (A) a transmission step of using time-spreading wavelength-hopping codes, which are different for each channel, to encode optical pulse signals comprising light of different wavelengths, allocated to different channels for transmission, to generate encoded optical pulse signals, and of multiplexing said encoded optical pulse signals to be transmitted as the optical code division multiplexed signals; and (B) a reception step of intensity-dividing said optical code division multiplexed signals by channel, decoding said divided optical code division multiplexed signals using the same codes as said time-spreading wavelength-hopping codes by channel, generating decoded optical pulse signals comprising auto-correlated waveform components and cross-correlated waveform components of said optical pulse signals, and extracting only auto-correlated waveform components from said decoded optical pulse signals to obtain received signals, wherein said transmission step comprises: