Telecommunications – Transmitter and receiver at same station
Reexamination Certificate
2011-08-23
2011-08-23
Urban, Edward (Department: 2618)
Telecommunications
Transmitter and receiver at same station
C375S344000
Reexamination Certificate
active
08005435
ABSTRACT:
The processing of information signals is described in an Ultra Wideband (UWB) transceiver. The transceiver has both transmission and receiver paths for processing information signals. In the receiver path, broadcast RF signals are converted to a zero intermediate frequency (IF) signal using a reference signal from a phase-locked loop (PLL) that can selectively provide a reference signal corresponding to the center frequencies of a plurality of signal band groups. The IF signal is then selectively modulated into the baseband signal to be digitized for presentation. In the transmission path, the in-coming digital signals are converted to analog baseband signals and selectively modulated into their own zero IF signals. Using the same PLL of the receiver path, the zero IF signals are modulated into the transmission RF signals directed to the target signal band of the target signal band group.
REFERENCES:
patent: 6501410 (2002-12-01), Kameda et al.
patent: 2004/0189326 (2004-09-01), Chikamatsu
patent: 2004/0218693 (2004-11-01), Hickling
patent: 2006/0068739 (2006-03-01), Maeda et al.
patent: 2006/0084382 (2006-04-01), Ibrahim et al.
patent: 2007/0025456 (2007-02-01), McCrady
patent: 2007/0096980 (2007-05-01), Gradincic et al.
patent: 2007/0110171 (2007-05-01), Iida
patent: 2007/0160164 (2007-07-01), Sahota
patent: 2007/0173277 (2007-07-01), Yun
patent: 2007/0177653 (2007-08-01), Bjerede
patent: 2007/0223608 (2007-09-01), Nakayama et al.
patent: 2007/0232244 (2007-10-01), Mo et al.
patent: 2008/0266161 (2008-10-01), Zipper et al.
“High Rate Ultra Wideband PHY and MAC Standard” Standard ECMA-368, Ecma International, 1stEdition, Dec. 2005, 322 pages.
“MAC-PHY Interface Specification for ECMA-368” Standard ECMA-369, Ecma International, 1stEdition, Dec. 2005, 52 pages.
Slater & Matsil L.L.P.
Sorowar Golam
Taiwan Semiconductor Manufacturing Company , Ltd.
Urban Edward
LandOfFree
Ultra-wideband transceiver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-wideband transceiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-wideband transceiver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2768304