Patent ID: 7095778
Filing Date: 2006-08-22
Classification: H04B,H04J

Abstract:
1. A spread spectrum transmitter comprising: a serial-parallel converting unit that inputs an information signal, sequentially converts the information signal into parallel data sequences of a prescribed data length, and sequentially distributes the parallel data sequences to N channels, where N is 2 or greater natural number; an orthogonal sequence encoding unit that sequentially converts the parallel data sequences into prescribed orthogonal code sequences; a spreading modulating unit that performs a spectrum spreading modulation process by respectively multiplying the orthogonal code sequences by prescribed spreading codes to output N spread spectrum signals; a delay unit that provides delays having different magnitudes to the N spread spectrum signals; a multiplexing unit that multiplexes the N spread spectrum signals in a prescribed manner to generate a transmission multiplex spread spectrum signal; and a transmitting unit that performs prescribed signal processing for transmitting the transmission multiplex spread spectrum signal.