Erik W Magnuson

US Patent:

7759938, Jul 20, 2010

Filed:

Dec 28, 2007

Appl. No.:

11/966331

Inventors:

Pablo J. Prado - San Diego CA, US
Sankaran Kumar - San Marcos CA, US
Erik Edmund Magnuson - Cardiff CA, US

Assignee:

Morpho Detection, Inc. - Newark CA

International Classification:

G01V 3/00

US Classification:

324319, 324320, 335296

Abstract:

Apparatus and method for varying field strength in a magnetic resonance system while keeping a relatively uniform magnetic field distribution. In an embodiment, a two-pole, generally u-shaped magnet assembly generates a static and uniform magnetic field. The magnet assembly includes two facing magnet poles separated by an air gap. Holes may be formed with the magnet poles. The field control rods may be placed at a pre-determined distance into these holes and symmetrically or asymmetrically moved across each magnet poles in a controlled manner to change the magnetic field strength while keeping the uniform magnetic field distribution. Maximum magnetic field strength may occur when the rods are removed. Minimum magnetic field strength may occur when the rods are fully inserted.

US Patent:

8424365, Apr 23, 2013

Filed:

Oct 2, 2009

Appl. No.:

12/572880

Inventors:

Christopher W. Crowley - San Diego CA, US
Erik Edmund Magnuson - Cardiff CA, US
Hacene Boudries - Andover MA, US

Assignee:

Morpho Detection, Inc. - Newark CA

International Classification:

G01N 27/00

US Classification:

73 3101, 73 3102, 73 2801

Abstract:

A method of operating a screening system includes applying an electromagnetic field to a subject in a region at least partially enclosed by electromagnetic shielding, and measuring an output from a sensor. The output is representative of an interaction of the electromagnetic field and the subject. A trace vapor is collected from the subject within the region, and the trace vapor is identified. Based on the measured sensor output and the identified trace vapor, whether a target material is associated with the subject is determined.

US Patent:

20090167322, Jul 2, 2009

Filed:

Dec 28, 2007

Appl. No.:

11/965968

Inventors:

Erik Edmund Magnuson - Cardiff CA, US
Sankaran Kumar - San Marcos CA, US
Peter Victor Czipott - San Diego CA, US

International Classification:

G01R 27/06
G01R 29/08

US Classification:

324642, 343703

Abstract:

A method for classifying a substance is provided. The method includes transmitting an electromagnetic signal at the substance, measuring a portion of the electromagnetic signal reflected by the substance, determining a reflection coefficient of the substance using the measured portion of the electromagnetic signal, and outputting a classification of the substance based on the determined reflection coefficient.

US Patent:

20090169433, Jul 2, 2009

Filed:

Dec 28, 2007

Appl. No.:

11/966378

Inventors:

Sankaran Kumar - San Marcos CA, US
Christopher Crowley - San Diego CA, US
Erik Edmund Magnuson - Cardiff CA, US
Michael Craig Burrell - Clifton Park NY, US
Frank Mondello - Niskayuna NY, US
Tracy Lynn Paxon - Waterford NY, US

International Classification:

G01N 21/31

US Classification:

422 8209

Abstract:

A substance identification system is configured to identify at least one detection target faster and with greater accuracy than is possible using prior substance identification systems and/or prior substance identification techniques. A chamber includes a pellet forming area having a predetermined geometry that is configured to maximize a ratio of a pellet surface area to a pellet volume. A magnet is positioned on one side of the chamber and configured to form a pellet of aggregated magnetic particles in the pellet forming area. A laser source is positioned on the same side of the chamber as the magnet and configured to illuminate the pellet, when the pellet is formed in the pellet forming area.

US Patent:

20100212401, Aug 26, 2010

Filed:

Feb 25, 2009

Appl. No.:

12/392729

Inventors:

Christopher W. Crowley - San Diego CA, US
Hacene Boudries - Andover MA, US
Erik Magnuson - Cardiff by the Sea CA, US

International Classification:

G01N 1/00
H01J 49/00
G01N 37/00

US Classification:

73 2801, 250281, 73864

Abstract:

A method of operating a screening system includes applying an electromagnetic field to a specimen in a region at least partially enclosed by electromagnetic shielding and measuring an output from a sensor, wherein the output is induced by an interaction of the electromagnetic field and the specimen. The method also includes dislodging trace particles from the specimen within the region, collecting the trace particles, and identifying the trace particles. The method further includes evaluating an association of the specimen with a substance based on the measured sensor output and the identified trace particles.

US Patent:

20110187535, Aug 4, 2011

Filed:

Jun 22, 2010

Appl. No.:

12/820457

Inventors:

Christopher W. Crowley - San Diego CA, US
Erik E. Magnuson - Cardiff CA, US
Alejandro Bussandri - La Jolla CA, US

International Classification:

G08B 23/00

US Classification:

3405731

Abstract:

A passenger screening device includes a transmission coil that is configured to apply radio frequency (RF) energy into a region of interest of a passenger at a frequency that is associated with a normal human body temperature, and a reception coil that is configured to detect an energy perturbation in response to the RF energy representative of a medical device on or within the passenger.

US Patent:

20110193558, Aug 11, 2011

Filed:

Feb 2, 2011

Appl. No.:

13/019927

Inventors:

Christopher W. Crowley - San Diego CA, US
Erik Edmund Magnuson - Cardiff CA, US
Alejandro Bussandri - La Jolla CA, US
Yotam Margalit - Castro Valley CA, US
Hector Robert - San Diego CA, US

Assignee:

MORPHO DETECTION, INC. - Newark CA

International Classification:

G01R 19/00

US Classification:

324300

Abstract:

A passenger scanning system includes a passenger screening area configured for a person to enter and a shield surrounding at least a portion of the passenger screening area. The shield is configured to reduce a radio frequency interference within the passenger screening area. The passenger scanning system also includes one or more sensors positioned in the passenger screening area at a height configured to be proximate one or more of an abdominal region, a groin region, and a pelvic region of the entered person. The sensors are configured to generate a signal in response to a target substance located in the one or more of the abdominal region, the groin region, and the pelvic region.

US Patent:

20120086450, Apr 12, 2012

Filed:

Sep 23, 2011

Appl. No.:

13/243395

Inventors:

Christopher W. Crowley - San Diego CA, US
Erik E. Magnuson - Cardiff CA, US

International Classification:

G01R 33/34
G01R 33/48

US Classification:

324315, 324322

Abstract:

A system and method for detecting objects foreign to a human body. The system including a thermal detector configured to obtain thermal imaging data, a quadrapole resonance (QR) device configured to transmit an excitation signal and receive a resulting signal emanating from a material excited by the excitation signal, and a controller configured to determine if a foreign object is present based on the thermal imaging data and the excitation signal.