UWB transmitter including an echo detector

Details UWB transmitter including an echo detector UWB transmitter including an echo detector

2007-10-30

2007-10-30

Payne, David C. (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

Reexamination Certificate

active

10643148

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 at½position of the chip period Tc, the chip period is shortened to Tc/2where 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.

REFERENCES:
patent: 6711216 (2004-03-01), Hannah
patent: 2003/0186713 (2003-10-01), Sugaya et al.
patent: 2004/0174925 (2004-09-01), Sanada
patent: 2003-152594 (2003-05-01), None
patent: 2003-258812 (2003-09-01), None
patent: 01/73965 (2001-10-01), None
Nikkei Electronics, [Ultra Wideband], Mar. 11, 2002, pp. 55-66, Japan (Publication date: Mar. 11, 2002).

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