Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2005-10-11
2009-02-10
Lugo, David B (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S355000
Reexamination Certificate
active
07489745
ABSTRACT:
Reconfigurable direct radio frequency (RF) bandpass sampling receivers are disclosed that provide direct RF sampling of an input signal spectrum passed through a bandpass filter that is tunable over a wide frequency range of interest and that is sampled based on the bandwidth of the filter rather than the bandwidth of the total frequency range of interest. The bandwidth of the filter may further be variable to provide for optimized search against a variety of signal bandwidths. The reconfigurable direct RF bandpass sampling receiver may be implemented with a single fixed clock for applications where the signals of interest lie in adjacent non-overlapping frequency channels. For applications requiring arbitrary tuning, the reconfigurable direct RF bandpass sampling receiver can also use a programmable or switched sampling clock to avoid the Nyquist sample boundaries that occur with bandpass sampling and thus provide sampling of arbitrary frequencies. A high-speed analog pre-sampler may be included to extend the maximum frequency range that can be sampled.
REFERENCES:
patent: 5014018 (1991-05-01), Rodwell et al.
patent: 5454007 (1995-09-01), Dutta
patent: 6266518 (2001-07-01), Sorrells et al.
patent: 6507624 (2003-01-01), Jachim et al.
patent: 6574459 (2003-06-01), Kaminski et al.
patent: 6700388 (2004-03-01), Mayor et al.
patent: 6900710 (2005-05-01), Agoston et al.
patent: 7107033 (2006-09-01), du Toit
patent: 2002/0161300 (2002-10-01), Hoff et al.
patent: 2003/0016762 (2003-01-01), Martin et al.
patent: 2003/0054783 (2003-03-01), Mason et al.
patent: 2005/0069046 (2005-03-01), Tsui et al.
Arthur, “Modern SAW-based pulse compression systems for radar applications, Part I: SAW matched filters,” Electronics & Communication Engineering Journal, Dec. 1995, pp. 236-246.
Arthur, “Modern SAW-based pulse compression systems for radar applications, Part II: Practical systems,” Electronics & Communication Engineering Journal, Apr. 1996, pp. 57-78.
Brandl et al., “High Speed Signal Processing with Tapped Dispersive SAW based Delay Lines,” University of Technology, Applied Electronics Laboratory, Vienna Austria, IEEE 2000, pp. 171-176.
Burke, “Ultra-Linear Chirp Generation Via VCO Tuning Predistortion,” AIL Systems, Inc., Deer Park, New York, IEEE 1994 MTT-S Digest, pp. 957-960.
Gerard et al., “The Design and Applications of Highly Dispersive Acoustic Surface-Wave Filters,” Invited Paper, IEEE Transactions on Microwave Theory and Techniques, vol. MTT-21, No. 4, Apr. 1973, pp. 176-186.
Ong et al., “Digital LPI Radar Detector,” Naval Postgraduate School Thesis, Monterey, California, Mar. 2001, pp. 1-81.
Grant et al., “Recent Advances in Analog Signal Processing,” IEEE 1990, IEEE Transactions on Aerospace and Electronic Systems, vol. 26, No. 5, Sep. 1990, pp. 818-849.
Li et al, “On the Use of a Compressive Receiver for Signal Detection,” IEEE 1991, IEEE Transactions on Communications, vol. 39, No. 4, Apr. 1991, pp. 557-566.
Levy et al, “VCO Based Chirp Generation for Broad Bandwidth Compressive Receiver Applications,” AIL Systems, Inc., Deer Park, New York, IEEE 1993 MTT-S Digest, pp. 1113-1115.
Lucyszyn, “Review of radio frequency microelectromechanical systems technology,” Imperial College, London, IEE Proc.-Sci. Meas.Technol.vol. 151, No. 2, Mar. 2004, pp. 93-103.
Lyons et al., “High Temperature Superconductive Wideband Compressive Receivers,” Analog Device Technology Group, Lincoln Laboratory, Invited Paper, IEEE Transactions on Microwave Theory and Techniques, vol. 44, No. 7, Jul. 1996, pp. 1258-1278.
Unser, “Sampling—50 Years After Shannon,” Swiss Federal Institute of Technology, Lausanne, Switzerland, IEEE 2000 Proceedings of the IEEE, vol. 88, No. 4, Apr. 2000, pp. 569-587.
Sengupta et al, “Novel Ferroelectric Materials for Phased Array Antennas,” U.S. Army Research Laboratory, Aberdeen Proving Groud, 1997 IEEE, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 44, No. 4, Jul. 1997, pp. 792-797.
Serhan et al., “Automatic Frequency Control Techniques For Microwave Active Filters,” Limoges University, Limoges, France, 1997 IEEE MTT -S Digest, pp. 697-700.
Whittaker et al, “Digital chirp filter processing for improved performance of sweeping spectrum analysers,” University of Surrey, Surrey, UK, Electronics Letters, Aug. 3, 2000, vol. 36, No. 16, pp. 1430-1432.
Agoston et al, “100 GHz Through-Line Sampler System with Sampling Rates in Excess of 10 G samples/second,” Picosecond Pulse Labs, Boulder, Colorado, PSPL—100 Sampler Paper—Submitted to MTT 2003, http://www.picosecond.com->products->sampler modules, 3 pgs.
Akbari-Dilmaghani et al, “A High Q RF CMOS Differential Active Inductor,” Imperial College, London, 1998 IEEE International Conference on Electronics, Circuits and Systems, vol. 3, Sep. 7-10, 1998, pp. 157-160.
Akos et al, “Direct Bandpass Sampling of Multiple Distinct RF Signals,” 1999 IEEE Transactions on Communications, Vo. 47, No. 7, Jul. 1999, pp. 983-988.
Behbahani et al, “A Broad-Band Tunable CMOS Channel-Select Filter for a Low-IF Wireless Receiver,” 2000 IEEE Journal of Solid-State Circuits, vol. 35, No. 4, Apr. 2000, pp. 476-489.
Brown et al, “Digital L-Band Receiver Architecture with Direct RF Sampling,” NAVSYS Corp., Colorado Springs, Colorado, Position Location and Navigation Symposium, 1994, IEEE, Apr. 11-15, 1994, pp. 209-216.
Copeland et al, “5-GHz SiGe HBT Monolithic Radio Transceiver with Tunable Filtering,” 2000 IEEE Transactions on Microwave Theory and Techniques, vol. 48, No. 2, Feb. 2000, pp. 170-181.
Deleniv et al, “Tunable Ferroelectric Filter-Phase Shifter,” University of Technology, Gothenburg, Sweden, 2003 IEEE MTT-S Digest, pp. 1267-1270.
Juodawlkis et al, “Optical Down-Sampling of Wide-Band Microwave Signals,” Invited Paper, Journal of Lightwave Technology, vol. 21, No. 12, Dec. 2003, pp. 3116-3124.
Karvonen et al, “A CMOS Quadrature Charge-Domain Sampling Circuit with 66-dB SFDR Up to 100 MHz,” 2005 IEEE Transactions on Circuits and Systems -I: Regular Papers, vol. 52, No. 2, Feb. 2005, pp. 292-304.
Koc et al, “Direct RF Sampling Continuous-Time Bandpass /spl Delta/-/spl Sigma/A/D Converter Design for 3G Wireless Applications,” ISCAS 2004, May 23-26, 2004, vol. 1, pp. 409-412.
Latiri et al, “A reconfigurable RF sampling receiver for multistandard applications,” Comptes Rendus Physique 7 (2006), pp. 785-793.
Lindfors et al, “A 3-V 230- MHz CMOS Decimation Subsampler,” 2003 IEEE Transactions on Circuits and Systems—II: Analog and Digital Signal Processing, vol. 50. No. 3, Mar. 2003, pp. 105-117.
Loper, “A Tri-Phase Direct Conversion Receiver,” Rockwell International, MILCOM 1990, Sep. 30-Oct. 3, 1990, pp. 1228-1232.
Luy et al, “Configurable RF Receiver Architecture,” Daimler-Chrysler Research and Tecnology, Ulm, Germany, 2004 IEEE Microwave Magazine, Mar. 2004, pp. 75-82.
Minnis et al, “A Highly Digitized Multimode Receiver Architecture for 3G Mobiles,” 2003 IEEE Transactions on Vehicular Technology , vol. 52, No. 3, May 2003, pp. 637-653.
Mirabbasi et al, “Classical and Modern Receiver Architectures,” University of Toronto, 2000 IEEE Communications Magazine, Nov. 2000, pp. 132-139.
Mostafa et al, “WCDMA Receiver Architecture with Unique Frequency Plan,” Micro Lnear Corp. San Jose, California and Texas Instruments, Inc., Dallas, Texas, ASIC/SOC Conference, 2001 Proceedings, 14thAnnual IEEE International, Sep. 12-15, 2001, pp. 57-61.
Muhammad et al, “Direct RF Sampling Mixer With Recursive Filtering in Charge Domain,” Texas Instruments Incorporated, Dallas, Texas, ISCAS, May 23-26, 2004, vol. 1, pp. 577-580.
Namgoong et al.
L-3 Communications Integrated Systems L.P.
Lugo David B
O'Keefe, Egan Peterman & Enders LLP
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