Patent ID: 6246715
Filing Date: 2001-06-12
Classification: H04B,H04L

Abstract:
A spread signal generating device in a spread spectrum communication system for transmitting an information signal through a plurality of channels, comprising:means for generating I-arm and Q-arm pseudo-random noise codes, and an inverted Q-arm pseudo-random noise code;a first multiplier for multiplying an information signal of a first channel among a plurality of channels by the I-arm pseudo-random noise code;a second multiplier for multiplying the information signal of the first channel by the Q-arm pseudo-random noise code;a first plurality of multipliers for respectively multiplying information signals of other channels by the inverted Q-arm pseudo-random noise code;a second plurality of multipliers for respectively multiplying the information signals of other channels by the I-arm pseudo-random noise code;a first adder for adding the multiplication results of the first multiplier and the first plurality of multipliers to produce an I-arm spread spectrum signal; anda second adder for adding the multiplication results of the second multiplier and the second plurality of multipliers to produce a Q-arm spread spectrum signal.