Multiplex communications – Duplex – Communication over free space
Reexamination Certificate
2009-06-29
2011-12-13
Chou, Albert T (Department: 2471)
Multiplex communications
Duplex
Communication over free space
C385S016000, C385S017000
Reexamination Certificate
active
08077639
ABSTRACT:
A signal routing assembly accepts a first transmission signal at an input and outputs a substantial portion of the signal at a common port of the signal routing assembly. A second transmission signal is received at the common port and is routed through the signal routing assembly delivered to output of the signal routing assembly. Leakage signals from routing devices leaking the first transmission signal are terminated inside the signal routing assembly. Leakage signal from a divider/combiner are cancelled by reflect signal from at least one reflector device. A transmitter produces the first transmission signal and the signal routing assembly delivers this signal to the common port of the signal routing assembly. In full duplex operation, second transmission signals received at the common port are routed to the output to be applied to a receiver.
REFERENCES:
patent: 3009794 (1960-03-01), Essam et al.
patent: 4134068 (1979-01-01), Richardson
patent: 4641365 (1987-02-01), Montini, Jr.
patent: 4725842 (1988-02-01), Mayberry
patent: 4742354 (1988-05-01), Wen et al.
patent: 4924236 (1990-05-01), Schuss et al.
patent: 4968967 (1990-11-01), Stove
patent: 5027084 (1991-06-01), Tsukii
patent: 5125108 (1992-06-01), Talwar
patent: 5129099 (1992-07-01), Roberts
patent: 5153596 (1992-10-01), Stove
patent: 5164985 (1992-11-01), Nysen et al.
patent: 5173703 (1992-12-01), Mangiapane et al.
patent: 5349365 (1994-09-01), Ow et al.
patent: 5359331 (1994-10-01), Adler
patent: 5561397 (1996-10-01), Kumar et al.
patent: 5596325 (1997-01-01), Maas
patent: 5701595 (1997-12-01), Green, Jr.
patent: 5771320 (1998-06-01), Stone
patent: 5815803 (1998-09-01), Ho et al.
patent: 5861837 (1999-01-01), Richardson et al.
patent: 5896113 (1999-04-01), O'Neill, Jr.
patent: 5909196 (1999-06-01), O'Neill, Jr.
patent: 5920292 (1999-07-01), O'Neill, Jr.
patent: 5969681 (1999-10-01), O'Neill, Jr.
patent: 6181286 (2001-01-01), Roscoe et al.
patent: 6184834 (2001-02-01), Utsumi et al.
patent: 6313713 (2001-11-01), Ho et al.
patent: 6509883 (2003-01-01), Foti et al.
patent: 6720912 (2004-04-01), Shono
patent: 6720935 (2004-04-01), Lamensdorf et al.
patent: 6870986 (2005-03-01), Stone
patent: 6952183 (2005-10-01), Yuanzhu
patent: 7834719 (2010-11-01), Cheung et al.
patent: 7855617 (2010-12-01), Cheung et al.
patent: 2002/0031224 (2002-03-01), Basawapatna et al.
patent: 2002/0032039 (2002-03-01), Kimata
patent: 2002/0177417 (2002-11-01), Visser
patent: 2003/0090405 (2003-05-01), Rausch et al.
patent: 2004/0077353 (2004-04-01), Mahany
patent: 2004/0124944 (2004-07-01), Nation
patent: 2005/0078683 (2005-04-01), Page
patent: 2005/0153664 (2005-07-01), Moloudi et al.
patent: 2009/0028074 (2009-01-01), Knox
patent: 2009/0274072 (2009-11-01), Knox
patent: 2010/0216413 (2010-08-01), Khannur
patent: 2372902 (2002-04-01), None
patent: WO/2007/002273 (2007-01-01), None
patent: WO/2008/105742 (2008-09-01), None
G. Lathiere et al., A Novel Balance Circulator for FDD MC-CDMA Communications, Oct. 12, 2004, 34thEuropean Microwave Conference—Amsterdam, 2004, pp. 605-608.
Craig A. Grimes et al., “An Experimental Investigation Into the Control of Antenna Input Impedance Through Cancellation of near Field Standing Energy”, May 1998, 0-7803-4311-5/98, pp. 273-282, IEEE MTT 1988.
Leo G. Maloratsky, “An Aircraft Single-Antenna FM Radio Altimeter,” May 2003, p. 196 (14pgs) Microwave Journal.
Matjaz Vidmar, “Design Improves 4.3 Ghz Radio Altimeter Accuracy”, Jun. 2004, pp. 1-5, and Figs.1-6, Microwaves & RF http:/www.mwrf/Articles/Print.cfm?ArticleID=10583.
Written Opinion and Search Report of the International Searching Authority (ISA/US) in PCT/US2007/026459, completed Apr. 24, 2008 and mailed May 16, 2008.
Written Opinion and Search Report of the International Searching Authority (ISA/US) in PCT/US2006/024280, mailed Feb. 16, 2007.
Chou Albert T
Ruschmann Herbert E.
LandOfFree
High isolation signal routing assembly for full duplex... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High isolation signal routing assembly for full duplex..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High isolation signal routing assembly for full duplex... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4315457