Patent ID: 7289576
Filing Date: 2007-10-30
Classification: H04B

Abstract:
1. A UWB transmitter comprising: an echo detector for detecting a polarity of an echo at a position of a second chip period that is shorter than a first chip period, which is an original chip period in advance; and a pulse generator for generating a pulse at the second chip period when generating a pulse of a same polarity as that of an immediately preceding pulse and generating a pulse at the first chip period when generating a pulse of an inverse polarity to that of the immediately preceding pulse when the echo detected by said echo detector has the same polarity, and for generating a pulse at the first chip period when generating a pulse of the same polarity as that of the immediately preceding pulse and generating a pulse at the second chip period when generating a pulse of the inverse polarity to that of the immediately preceding pulse when the echo detected by said echo detector has the inverse polarity, wherein said echo dectector operates as a correlator for decoding codes in a receiver.