Communications: directive radio wave systems and devices (e.g. – Radar ew – Eccm
Reexamination Certificate
2007-11-13
2007-11-13
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Eccm
C342S159000, C342S194000, C342S162000
Reexamination Certificate
active
11186712
ABSTRACT:
A receiver that selectively samples a received signal in order to suppress an interference component of the signal while recovering a desired component. The selective sampling may be accomplished by low cost, low complex analog or digital circuitry. The receiver includes a first input that receives a first signal, including a desired signal component and an interference signal component and a second input that receives a second signal including the interference component only. The first and second signals are then provided to the sampling circuitry. First, the phase of the interference component of the both the first and second signals is aligned. Next, the points in a wave cycle that the second signal is at a power minimum are detected. Finally, first signal is sampled close to the point when the second signal is at the power minimum to recover the desired signal component and suppress the interference component.
REFERENCES:
patent: 4584710 (1986-04-01), Hansen
patent: 4972430 (1990-11-01), Cantwell
patent: 6901105 (2005-05-01), Razzell
patent: 2001/0050948 (2001-12-01), Ramberg et al.
patent: 2002/0064245 (2002-05-01), McCorkle
patent: 2003/0112905 (2003-06-01), Heinzl et al.
patent: 2004/0053596 (2004-03-01), Svensson et al.
patent: 2006/0017604 (2006-01-01), Weber
patent: 2006/0176988 (2006-08-01), Sohn et al.
patent: 2006/0212910 (2006-09-01), Endres et al.
patent: 2007/0086547 (2007-04-01), Sobchak et al.
patent: 2007/0096976 (2007-05-01), Loehner et al.
patent: WO 2006078314 (2006-07-01), None
“Suppression of Strong Interference in Broadband Communications via Filter Banks”, Timothy A. Thomas, Frederick W. Vook, IPCOM000141444D, Sep. 23, 2004, Allerton 2004, Motorola, Inc.
Sidney P. Applebaum, “Adaptive Arrays with Main Beam Constraints”, IEEE Transactions on Antennas and Propagation, vol. AP-24, No. 5, Sep. 1976.
Lloyd J. Griffiths, “An Alternative Approach to Linearly Constrained Adaptive Beamforming”, IEEE Transactions on Antennas and Propagation, vol. AP-30, No. 1, Jan. 1982.
Godara, Lal Chand, “Smart Antennas”, Book, pp. 1-443, 2004 CRC Press LLC, Boca Raton, Florida.
G. Matthaei, L. Young, and E.M.T. Jones, “Microwave Filters, Impedance-Matching Networks, and Coupling Structures”, Book, pp. 434-440, 1980 Norwood, MA: Artech House.
Sotomayor John B
Workman Nydegger
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