Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yukitoshi Sanada0
Date of Patent
October 30, 2007
0Patent Application Number
106431480
Date Filed
August 19, 2003
0Patent Primary Examiner
Patent abstract
The present invention provides a UWB transmitter and receiver, the transmission rate of which is increased, and the SN ratio of which is improved. By investigating the polarity of an echo at ½ position of the chip period Tc, the chip period is shortened to Tc/2 where the polarity of the echo is the same and a pulse signal of the same polarity is continued, whereby it becomes possible to increase the transmission rate. Because the echo and the pulse signal are caused to overlap each other, the SN ratio can be improved.
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