Peter B Anderson

US Patent:

6336773, Jan 8, 2002

Filed:

Oct 14, 1999

Appl. No.:

09/418063

Inventors:

Peter L. Anderson - North Reading MA
Michael J. Cowell - Leesburg VA
Dan J. Hotek - Front Royal VA

Assignee:

Societe Civile des Brevets Henri C. Vidal - LePecq

International Classification:

E02D 2902

US Classification:

405262, 405284, 405286

Abstract:

A modular block wall includes dry cast, unreinforced modular wall blocks with anchor type, or frictional type or composite type soil stabilizing elements recessed therein and attached thereto by vertical rods which also connect the blocks together. The soil stabilizing elements are positioned in counterbores or slots in the blocks and project into the compacted soil behind the courses of modular wall blocks. Alternative stabilizing element designs may be used with the modular wall blocks and other types of facing elements in a mechanically stabilized earth structure.

US Patent:

6774624, Aug 10, 2004

Filed:

Mar 27, 2002

Appl. No.:

10/108197

Inventors:

Peter T. Anderson - Andover MA
Gerald L. Beauregard - Hampton NH
Christopher D. Cherry - Bolton MA

Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI

International Classification:

G01B 714

US Classification:

32420717, 32420722, 324247, 600424, 702150

Abstract:

The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.

US Patent:

6980921, Dec 27, 2005

Filed:

Nov 14, 2003

Appl. No.:

10/713514

Inventors:

Peter T. Anderson - Andover MA, US
Gerald L. Beauregard - Hampton NH, US
Christopher D. Cherry - Bolton MA, US

Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI

International Classification:

G01C009/00
G01B007/14

US Classification:

702150, 32420717, 600424

Abstract:

The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.

US Patent:

7015859, Mar 21, 2006

Filed:

Jun 16, 2004

Appl. No.:

10/869396

Inventors:

Peter Traneus Anderson - Andover MA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01S 3/02

US Classification:

342450, 342463

Abstract:

Certain embodiments of the present invention provide a system and method for electromagnetic tracking using a three-coil wireless transmitter. The electromagnetic tracking system includes an instrument manipulated by a user to perform a task, a wireless transmitter for broadcasting a wireless signal, a receiver assembly for receiving the wireless signal, and electronics for determining positioning information for the instrument based on a relationship between the receiver assembly and the wireless transmitter. In an embodiment, the wireless transmitter includes a wireless transmitter coil trio. In an embodiment, the receiver assembly includes two receiver coil trios.

US Patent:

7096148, Aug 22, 2006

Filed:

Dec 22, 2004

Appl. No.:

11/024925

Inventors:

Peter T. Anderson - Andover MA, US
Gerald L. Beauregard - Hampton NH, US
Christopher D. Cherry - Bolton MA, US

Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI

International Classification:

G06G 15/00
G01B 7/14

US Classification:

702134, 32420717, 600424, 702150

Abstract:

The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.

US Patent:

7158754, Jan 2, 2007

Filed:

Jul 1, 2003

Appl. No.:

10/611112

Inventors:

Peter Traneus Anderson - Andover MA, US

Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI

International Classification:

H04B 5/00
H04Q 7/20
A61B 5/05
G01C 9/00
G01R 33/02

US Classification:

455 411, 4554561, 600424, 600409, 702152, 340 101, 34053913, 324247

Abstract:

Certain embodiments of the present invention provide a system and method for electromagnetic tracking using a single-coil transmitter. The system includes a single coil transmitter emitting a signal, a receiver receiving a signal from the single coil transmitter, and electronics for processing the signal received by the receiver. The electronics determine a position of the single coil transmitter. The transmitter may be a wireless or wired transmitter. The receiver may be a printed circuit board. In an embodiment, the receiver may be a twelve receiver circuit printed circuit board including single coils and/or pairs of coils. The electronics may determine position, orientation, and/or gain of the transmitter.

US Patent:

7471202, Dec 30, 2008

Filed:

Mar 29, 2006

Appl. No.:

11/277821

Inventors:

Peter Traneus Anderson - Andover MA, US

Assignee:

General Electric Co. - Schenectady NY

International Classification:

G08B 13/14

US Classification:

3405721, 3405727, 3405728, 600424

Abstract:

Described herein are one or more implementations for reducing the effects of distortion caused by the distorters in medical image-capture components used in medical electromagnetic tracking system. Examples of a medical image-capture component include an X-ray image detector used in fluoroscopic image-guided medical procedures and a surgical microscope. With one or more implementations described herein, the electromagnetic receiver unit (or transmitter unit) is conformably attached to the medical image-capture component.

US Patent:

7508195, Mar 24, 2009

Filed:

Jan 18, 2007

Appl. No.:

11/654878

Inventors:

Peter Traneus Anderson - Andover MA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01F 27/28
H01F 5/00
G01B 7/14

US Classification:

32420716, 32420717, 336232, 335299

Abstract:

A source for inducing an electromagnetic magnetic field, comprising: a substrate, a conductive layer coupled to the substrate, and a planar coil coupled to the substrate, wherein the planar coil comprises non-concentric rings, and wherein the non-concentric rings are configured such that a drive current applied across the non-concentric rings provides a magnetic field, and wherein the magnetic field comprises a moment vector that is tilted at an angle from the normal to a plane of the planar coil. Also provided are a method of electromagnetic tracking, a method of manufacture of a planar coil, and an electromagnetic sensor.