Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Reexamination Certificate
2011-01-25
2011-01-25
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
Reexamination Certificate
active
07876267
ABSTRACT:
Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.
REFERENCES:
patent: 3372395 (1968-03-01), Kline
patent: 5212715 (1993-05-01), Pickert et al.
patent: 5402348 (1995-03-01), De La Salle et al.
patent: 5668775 (1997-09-01), Hatteland
patent: 5796366 (1998-08-01), Grebnev et al.
patent: 6308077 (2001-10-01), Walsh
patent: 6466200 (2002-10-01), Anton et al.
patent: 6539306 (2003-03-01), Turnbull
patent: 6556942 (2003-04-01), Smith
patent: 6693511 (2004-02-01), Seal
patent: 6925135 (2005-08-01), Smith et al.
patent: 6973145 (2005-12-01), Smith et al.
patent: 7092440 (2006-08-01), Dress, Jr. et al.
patent: 7154937 (2006-12-01), Gilmour et al.
patent: 7299034 (2007-11-01), Kates
patent: 7394381 (2008-07-01), Hanson et al.
patent: 7411492 (2008-08-01), Greenberg
patent: 7636061 (2009-12-01), Thomas et al.
patent: 2002/0193946 (2002-12-01), Turnbull
patent: 2003/0018430 (2003-01-01), Ladetto et al.
patent: 2003/0119568 (2003-06-01), Menard
patent: 2003/0122720 (2003-07-01), Matz et al.
patent: 2006/0193373 (2006-08-01), Agee et al.
patent: 2006/0240839 (2006-10-01), Chen et al.
patent: 2006/0255934 (2006-11-01), Easley et al.
patent: 2006/0287816 (2006-12-01), Bardsley et al.
patent: 2007/0018811 (2007-01-01), Gollu
patent: 2007/0211791 (2007-09-01), Ganguly et al.
patent: 2007/0286028 (2007-12-01), Meltzer et al.
patent: 2008/0129591 (2008-06-01), Lamance et al.
Mark A. Buckner; “Learning from Data with Localized Regression and Differential Evolution”: dissertation, The University of Tennessee, Knoxville; May 2003; pp. 1-183.
Robert C. Dixon; “Spread Spectrum Systems with Commercial Applications”; John Wiley & Sons, Inc.; Third Edition, 1994; pp. 18-32, 85-112, and 500-503.
Dostert, K., “Frequency-Hopping Spread-Spectrum Modulation for Digital Communications over Electrical Power Lines,” IEEE, vol. 8, No. 4, 1990, pp. 700-710.
Hutsell, Capt. S. T., “Relating the Hadamard Variance to MCS Kalman Filter Clock Estimation,” 1995, pp. 291-301.
Lo, S. C., “Broadcasting Data from an SBAS Reference Network over using LORAN,” Department of Aeronautics and Astronautics, Stanford University, 2000, 10 pages.
Mohinder S. Grewal, Lawrence R. Weill, and Angus P. Andrews; “Global Positioning Systems, Inertial Navigation, and Integration”; John Wiley & Sons, Inc.; 2001; pp. 9-28.
Elliott D. Kaplan, Editor; “Understanding GPS Principles and Applications”; Artech House, Inc.; 1996; pp. 39-52 and 54.
Marvin K. Simon, “Bandwith-Efficient Digital Modulation with Application to Deep-Space Communications”; John Wiley & Sons, Inc.; 2003; pp. 125-185.
Rudolph van der Merwe & Eric Wan; “Sigma-Point Kalman Filters for Probabilistic Interference in Dynamic State-Space Models”; OGI School of Science & Engineering; Oregon Health & Science University, Beaverton, Oregon, U.S.A.; 37 pages total, 2003.
Revolutionary New Navigation System Combines Multiple Technologies for Robustness, Reliability; Frost & Sullivan; Technical Insights; Oct. 28, 2005; p. 4.
Streaming SIMD Extensions—Inverse of 4x4; Intel Corporation; Mar. 1999; pp. 1-10.
Moore James A.
Smith Stephen F.
Brinks Hofer Gilson & Lione
Liu Harry
Tarcza Thomas H
UT-Battelle LLC
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