Patent ID: 9100140
Filing Date: 2015-08-04
Classification: H04J

Abstract:
1. A spreading code producing apparatus comprising: two phase shifters for spreading code which receive bits for determining spreading codes and phase information and producing spreading codes; and multiplexers which receive two spreading codes produced by said two phase shifters for spreading code, receive bits through separate way and a control signal which defines outputting order of the received two spreading codes and produce spreading codes with a same length as each of said received two spreading codes; wherein a transmission rate of a phase modulating signal outputting from said multiplexers is proportionally increased according to increasing of clock frequencies for inputting said spreading code and said bits to said multiplexers, and wherein said multiplexers produce first a half of a spreading code from one of the two received spreading codes by control signals and produce later a remnant half of the spreading code from another of the two received spreading codes to generate spreading codes with a same spreading length as received ones.