Communications: directive radio wave systems and devices (e.g. – Transmission through media other than air or free space
Reexamination Certificate
2005-07-29
2010-11-16
Lobo, Ian J (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Transmission through media other than air or free space
C324S329000
Reexamination Certificate
active
07834801
ABSTRACT:
Line locator systems that fuse traditional sensors used in a combined pipe and cable locator (electromagnetic coils, magnetometers, and ground penetrating radar antennas) with low cost inertial sensors (accelerometers, gyroscopes) in a model-based approach are presented. Such systems can utilize inexpensive MEMS sensors for inertial navigation. A pseudo-inertial frame is defined that uses the centerline of the tracked utility, or an aboveground fixed object as the navigational reference. An inertial sensor correction mechanism that limits the tracking errors over time when the model is implemented in state-space form using, for example, the Extended Kalman Filter (EKF) is disclosed.
REFERENCES:
patent: 4723216 (1988-02-01), Premerlani
patent: 4802009 (1989-01-01), Hartmeier
patent: 4942360 (1990-07-01), Candy
patent: 5025227 (1991-06-01), Walton
patent: 5038364 (1991-08-01), Motoori
patent: 5181026 (1993-01-01), Granville
patent: 5194812 (1993-03-01), Yokoi
patent: 5231355 (1993-07-01), Rider et al.
patent: 5260659 (1993-11-01), Flowerdew et al.
patent: 5262639 (1993-11-01), Vokey et al.
patent: 5321613 (1994-06-01), Porter et al.
patent: 5541516 (1996-07-01), Rider et al.
patent: 5642050 (1997-06-01), Shoemaker
patent: 5757190 (1998-05-01), Mercer
patent: 5798644 (1998-08-01), Eslambolchi et al.
patent: 5920194 (1999-07-01), Lewis et al.
patent: 6023986 (2000-02-01), Smith et al.
patent: 6127827 (2000-10-01), Lewis
patent: 6140819 (2000-10-01), Peterman
patent: 6215888 (2001-04-01), Eslambolchi et al.
patent: 6240367 (2001-05-01), Lin
patent: 6310579 (2001-10-01), Meredith
patent: 6396433 (2002-05-01), Clodfelter
patent: 6407550 (2002-06-01), Parakulam et al.
patent: 6411073 (2002-06-01), Fischer et al.
patent: 6424820 (2002-07-01), Burdick et al.
patent: 6529006 (2003-03-01), Hayes
patent: 6549011 (2003-04-01), Flatt
patent: 6735263 (2004-05-01), Moriya et al.
patent: 6751553 (2004-06-01), Young et al.
patent: 6756783 (2004-06-01), Brune et al.
patent: 7057383 (2006-06-01), Schlapp et al.
patent: 7062414 (2006-06-01), Waite et al.
patent: 7113124 (2006-09-01), Waite
patent: 2002/0196177 (2002-12-01), Johansson et al.
patent: 2003/0046003 (2003-03-01), Smith et al.
patent: 2003/0058961 (2003-03-01), Fling et al.
patent: 2004/0070399 (2004-04-01), Olsson et al.
patent: 2005/0088301 (2005-04-01), Abbruscato
patent: 2005/0096879 (2005-05-01), Waite et al.
patent: 2005/0096883 (2005-05-01), Pacey
patent: 2005/0156776 (2005-07-01), Waite
patent: 2005/0197755 (2005-09-01), Knowlton et al.
patent: 2006/0036376 (2006-02-01), Gudmundsson et al.
patent: 2006/0214663 (2006-09-01), Mercer et al.
patent: 2007/0288195 (2007-12-01), Waite et al.
patent: 0 299 724 (1989-01-01), None
patent: 299724 (1989-01-01), None
patent: 0 780 704 (2001-06-01), None
patent: 1 217 391 (2002-06-01), None
patent: 2 152 059 (2000-06-01), None
patent: WO 2005/015263 (2005-02-01), None
patent: WO 2005/111662 (2005-11-01), None
patent: WO 2006/015310 (2006-02-01), None
patent: WO 2006/015310 (2006-02-01), None
patent: WO 2007/106388 (2007-09-01), None
Doolittle, J. et al., “A comparison of EM Induction and GPR methods in areas of karst,” Geoderma 85 (1998) 83-102.
International Search Report and Written Opinion dated Nov. 26, 2004, received in PCT Application No. PCT/US2004/018935.
Office Action dated Jul. 6, 2005, received in U.S. Appl. No. 10/622,376.
Amendment and Response to Office Action dated Nov. 7, 2005, filed in U.S. Appl. No. 10/622,376.
Office Action dated Oct. 27, 2005, received in U.S. Appl. No. 10/997,729.
International Search Report and Written Opinion from PCT Application No. PCT/US05/27240 filed Jul. 29, 2005.
International Search Report and Written Opinion from PCT Application No. PCT/US2004/018935 mailed Nov. 26, 2004.
IPRP from PCT Application No. PCT/US2004/018935 dated Jan. 23, 2006.
Communication pursuant to Article 96(2) EPC from European Patent Application No. 04 776 559.9-2213 dated Jun. 7, 2006.
Application as filed in related U.S. Appl. No. 11/716,298.
International Preliminary Report on Patentability and Written Opinion dated Jan. 30, 2007, in International Application No. PCT/US2005/027240.
Response to Office Action filed Aug. 28, 2007 (Chinese version previously cited), in related Chinese application No. 200480020605.1.
International Search Report and the Written Opinion of related PCT Appl. No. PCT/US07/06045 mailed Feb. 20, 2008.
International Preliminary Report on Patentability of related PCT Appl. No. PCT/US07/06045 mailed Sep. 25, 2008.
Waite James W.
Welaratna Ruwan
Haynes and Boone LLP
Lobo Ian J
Metrotech Corporation, Inc.
LandOfFree
Sensor fusion for model-based detection in pipe and cable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sensor fusion for model-based detection in pipe and cable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor fusion for model-based detection in pipe and cable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4242873