Patent ID: 7477677
Filing Date: 2009-01-13
Classification: H04B

Abstract:
1. An apparatus for receiving multiple spread spectrum signals each traveling upon a different propagation path and each having a resultant arrival time difference with respect to one another, comprising: a first demodulator for demodulating a first spread spectrum signal of said multiple spread spectrum signals in accordance with a first arrival time; and a second demodulator for demodulating a second spread spectrum signal of said multiple spread spectrum signals in accordance with a time interval difference with respect to said first arrival times, wherein said first demodulator comprises: a pseudorandom noise descrambler for descrambling said first spread spectrum signal in accordance with a pseudorandom noise sequence; a phase adjustor for extracting a pilot signal from said descrambled first spread spectrum signal and multiplying said descrambled first spread spectrum signal with said extracted pilot signal, thereby forming a phase adjusted signal; and a dechannelization unit for multiplying said phase adjusted signal by an orthogonal channel sequence.