WO2008127720A3 - Atomic magnetometer sensor array magnetoencephalogram systems and methods - Google Patents

Atomic magnetometer sensor array magnetoencephalogram systems and methods Download PDF

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Publication number
WO2008127720A3
WO2008127720A3 PCT/US2008/004820 US2008004820W WO2008127720A3 WO 2008127720 A3 WO2008127720 A3 WO 2008127720A3 US 2008004820 W US2008004820 W US 2008004820W WO 2008127720 A3 WO2008127720 A3 WO 2008127720A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
various embodiments
arrays
magnetoencephalogram
systems
Prior art date
Application number
PCT/US2008/004820
Other languages
French (fr)
Other versions
WO2008127720A2 (en
WO2008127720A9 (en
Inventor
Frank Michael Skidmore
James Chris Sackellares
Mark Davidson
Bernard F Whiting
Panos M Pardalos
Original Assignee
Univ Florida
Frank Michael Skidmore
James Chris Sackellares
Mark Davidson
Bernard F Whiting
Panos M Pardalos
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Florida, Frank Michael Skidmore, James Chris Sackellares, Mark Davidson, Bernard F Whiting, Panos M Pardalos filed Critical Univ Florida
Priority to US12/532,637 priority Critical patent/US20100219820A1/en
Publication of WO2008127720A2 publication Critical patent/WO2008127720A2/en
Priority to US12/265,785 priority patent/US9167979B2/en
Publication of WO2008127720A3 publication Critical patent/WO2008127720A3/en
Publication of WO2008127720A9 publication Critical patent/WO2008127720A9/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
    • A61B5/245—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals
    • A61B5/246—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals using evoked responses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/035—Measuring direction or magnitude of magnetic fields or magnetic flux using superconductive devices
    • G01R33/0354—SQUIDS
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/04—Arrangements of multiple sensors of the same type
    • A61B2562/046—Arrangements of multiple sensors of the same type in a matrix array
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
    • A61B5/245—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals

Abstract

Devices disclosed according to various embodiments use one or more arrays of atomic magnetometers to detect biologically derived magnetic fields. The disclosed devices and methods relate to application of utilization of a magnetic sensor with unique properties requiring changes in design, allowing new functions, and requiring alternative analysis methodologies. Various embodiments are also directed to methods for obtaining and processing biological magnetic signals. These methods may take advantage of the unique spatial arrangement of the atomic magnetometers and the capacity sensors to be used in either a scalar or a vector mode. Various embodiments have advantages over current magnetometer arrays for the purpose of detecting biological magnetic fields. Such advantages may include, for example: smaller size, lower power consumption, no necessity for cryogenic cooling, potential wafer-level fabrication, and/or the potential of better localization biological signals. In addition, various embodiments may allow increased target or subject mobility.
PCT/US2008/004820 2007-04-13 2008-04-14 Atomic magnetometer sensor array magnetoencephalogram systems and methods WO2008127720A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/532,637 US20100219820A1 (en) 2007-04-13 2008-04-14 Atomic Magnetometer Sensor Array Magnetoencephalogram Systems and Methods
US12/265,785 US9167979B2 (en) 2007-04-13 2008-11-06 Atomic magnetometer sensor array magnetic resonance imaging systems and methods

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US92333307P 2007-04-13 2007-04-13
US60/923,333 2007-04-13
US96609907P 2007-08-24 2007-08-24
US60/966,099 2007-08-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/265,785 Continuation-In-Part US9167979B2 (en) 2007-04-13 2008-11-06 Atomic magnetometer sensor array magnetic resonance imaging systems and methods

Publications (3)

Publication Number Publication Date
WO2008127720A2 WO2008127720A2 (en) 2008-10-23
WO2008127720A3 true WO2008127720A3 (en) 2008-12-04
WO2008127720A9 WO2008127720A9 (en) 2009-01-22

Family

ID=39689168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/004820 WO2008127720A2 (en) 2007-04-13 2008-04-14 Atomic magnetometer sensor array magnetoencephalogram systems and methods

Country Status (2)

Country Link
US (2) US20100219820A1 (en)
WO (1) WO2008127720A2 (en)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9101279B2 (en) 2006-02-15 2015-08-11 Virtual Video Reality By Ritchey, Llc Mobile user borne brain activity data and surrounding environment data correlation system
US7656157B2 (en) * 2006-08-08 2010-02-02 Shell Oil Company Method for improving the precision of time domain low field H-NMR analysis
US8179133B1 (en) 2008-08-18 2012-05-15 Hypres, Inc. High linearity superconducting radio frequency magnetic field detector
US20110295110A1 (en) * 2009-02-11 2011-12-01 Koninklijke Philips Electronics N.V. Method and system of tracking and mapping in a medical procedure
US9250299B1 (en) * 2009-08-28 2016-02-02 Cypress Semiconductor Corporation Universal industrial analog input interface
US20110050216A1 (en) * 2009-09-01 2011-03-03 Adidas Ag Method And System For Limiting Interference In Magnetometer Fields
US8971936B2 (en) 2009-09-01 2015-03-03 Adidas Ag Multimodal method and system for transmitting information about a subject
US8593141B1 (en) 2009-11-24 2013-11-26 Hypres, Inc. Magnetic resonance system and method employing a digital squid
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
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US8278923B2 (en) * 2010-06-02 2012-10-02 Halliburton Energy Services Inc. Downhole orientation sensing with nuclear spin gyroscope
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IL208258A (en) * 2010-09-20 2017-08-31 Israel Aerospace Ind Ltd Optical magnetometer sensor array
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JP5823195B2 (en) 2011-07-13 2015-11-25 住友重機械工業株式会社 Magnetoencephalograph and method for measuring magnetoencephalogram
US20130144153A1 (en) * 2011-12-01 2013-06-06 The Regents Of The University Of California Functional magnetic resonance imaging apparatus and methods
EP2793723B1 (en) * 2011-12-20 2021-01-20 Cardiac Pacemakers, Inc. Apparatus for monitoring and ablating nerves
US10054651B2 (en) * 2012-02-09 2018-08-21 Koninklijke Philips N.V. Data detection timestamp device for use in combination with an MRI apparatus and a nuclear imaging (PET or SPECT) device
JP6513798B2 (en) 2015-04-30 2019-05-15 国立大学法人 東京医科歯科大学 Biological information measuring device
CN105147289B (en) * 2015-08-18 2018-01-05 高家红 MEG system and methods based on atomic magnetic force meter
GB201522661D0 (en) * 2015-12-22 2016-02-03 Univ Sheffield Apparatus and methods for determining electrical conductivity of tissue
US10772561B2 (en) * 2016-04-01 2020-09-15 Thomas Alan Donaldson Sensors to determine neuronal activity of an organism to facilitate a human-machine interface
US20190150774A1 (en) * 2016-05-11 2019-05-23 Mayo Foundation For Medical Education And Research Multiscale brain electrode devices and methods for using the multiscale brain electrodes
US10393827B2 (en) * 2016-06-03 2019-08-27 Texas Tech University System Magnetic field vector imaging array
JP7026356B2 (en) 2016-09-30 2022-02-28 国立大学法人 東京医科歯科大学 Biometric information measuring device
JP2018068934A (en) * 2016-11-04 2018-05-10 セイコーエプソン株式会社 Magnetic sensor and cell unit
US9791536B1 (en) * 2017-04-28 2017-10-17 QuSpin, Inc. Mutually calibrated magnetic imaging array
US11134877B2 (en) * 2017-08-09 2021-10-05 Genetesis, Inc. Biomagnetic detection
WO2019060298A1 (en) 2017-09-19 2019-03-28 Neuroenhancement Lab, LLC Method and apparatus for neuroenhancement
US11717686B2 (en) 2017-12-04 2023-08-08 Neuroenhancement Lab, LLC Method and apparatus for neuroenhancement to facilitate learning and performance
EP3731749A4 (en) 2017-12-31 2022-07-27 Neuroenhancement Lab, LLC System and method for neuroenhancement to enhance emotional response
CN108459282B (en) * 2018-01-30 2020-04-17 中科知影(北京)科技有限公司 Magnetoencephalogram detection device and method based on atomic magnetometer/magnetic gradiometer
US11864865B2 (en) * 2018-02-26 2024-01-09 Washington University Small form factor detector module for high density diffuse optical tomography
US11364361B2 (en) 2018-04-20 2022-06-21 Neuroenhancement Lab, LLC System and method for inducing sleep by transplanting mental states
US10088535B1 (en) 2018-06-06 2018-10-02 QuSpin, Inc. System and method for measuring a magnetic gradient field
WO2020005460A1 (en) * 2018-06-25 2020-01-02 Hi Llc Magnetic field measurement systems and methods of making and using
US10976386B2 (en) 2018-07-17 2021-04-13 Hi Llc Magnetic field measurement system and method of using variable dynamic range optical magnetometers
WO2020036666A1 (en) 2018-08-17 2020-02-20 Hi Llc Optically pumped magnetometer
US11136647B2 (en) 2018-08-17 2021-10-05 Hi Llc Dispensing of alkali metals mediated by zero oxidation state gold surfaces
US10983177B2 (en) 2018-08-20 2021-04-20 Hi Llc Magnetic field shaping components for magnetic field measurement systems and methods for making and using
CN110859610B (en) * 2018-08-27 2023-05-05 中科知影(北京)科技有限公司 Brain magnetic detection device
US10627460B2 (en) 2018-08-28 2020-04-21 Hi Llc Systems and methods including multi-mode operation of optically pumped magnetometer(s)
WO2020056418A1 (en) 2018-09-14 2020-03-19 Neuroenhancement Lab, LLC System and method of improving sleep
US11237225B2 (en) 2018-09-18 2022-02-01 Hi Llc Dynamic magnetic shielding and beamforming using ferrofluid for compact Magnetoencephalography (MEG)
US11370941B2 (en) 2018-10-19 2022-06-28 Hi Llc Methods and systems using molecular glue for covalent bonding of solid substrates
FI20185893A (en) * 2018-10-23 2020-04-24 Elekta Oy Head-mountable apparatus
US11307268B2 (en) 2018-12-18 2022-04-19 Hi Llc Covalently-bound anti-relaxation surface coatings and application in magnetometers
US11294008B2 (en) 2019-01-25 2022-04-05 Hi Llc Magnetic field measurement system with amplitude-selective magnetic shield
US11585869B2 (en) 2019-02-08 2023-02-21 Genetesis, Inc. Biomagnetic field sensor systems and methods for diagnostic evaluation of cardiac conditions
WO2020167450A1 (en) 2019-02-12 2020-08-20 Hi Llc Neural feedback loop filters for enhanced dynamic range magnetoencephalography (meg) systems and methods
JP2020146408A (en) * 2019-03-15 2020-09-17 株式会社リコー Magnetic field detector, and biological magnetic field measuring system
US11360164B2 (en) 2019-03-29 2022-06-14 Hi Llc Integrated magnetometer arrays for magnetoencephalography (MEG) detection systems and methods
US20200334559A1 (en) * 2019-04-19 2020-10-22 Hi Llc Systems and methods for suppression of interferences in magnetoencephalography (meg) and other magnetometer measurements
US11269027B2 (en) 2019-04-23 2022-03-08 Hi Llc Compact optically pumped magnetometers with pump and probe configuration and systems and methods
US11131725B2 (en) 2019-05-03 2021-09-28 Hi Llc Interface configurations for a wearable sensor unit that includes one or more magnetometers
US11786694B2 (en) 2019-05-24 2023-10-17 NeuroLight, Inc. Device, method, and app for facilitating sleep
US11839474B2 (en) 2019-05-31 2023-12-12 Hi Llc Magnetoencephalography (MEG) phantoms for simulating neural activity
US11131729B2 (en) 2019-06-21 2021-09-28 Hi Llc Systems and methods with angled input beams for an optically pumped magnetometer
AU2020300681A1 (en) * 2019-07-03 2022-02-03 NeuraLace Medical, Inc. Devices, systems, and methods for non-invasive chronic pain therapy
US11415641B2 (en) 2019-07-12 2022-08-16 Hi Llc Detachable arrangement for on-scalp magnetoencephalography (MEG) calibration
US20210041512A1 (en) * 2019-08-06 2021-02-11 Hi Llc Systems and methods for multiplexed or interleaved operation of magnetometers
US10996293B2 (en) 2019-08-06 2021-05-04 Hi Llc Systems and methods having an optical magnetometer array with beam splitters
WO2021045953A1 (en) 2019-09-03 2021-03-11 Hi Llc Methods and systems for fast field zeroing for magnetoencephalography (meg)
WO2021091867A1 (en) 2019-11-08 2021-05-14 Hi Llc Methods and systems for homogenous optically-pumped vapor cell array assembly from discrete vapor cells
WO2021146766A1 (en) * 2020-01-20 2021-07-29 Noosa Natural Vet Pty Ltd Medical diagnostic device
US11801003B2 (en) 2020-02-12 2023-10-31 Hi Llc Estimating the magnetic field at distances from direct measurements to enable fine sensors to measure the magnetic field from the brain using a neural detection system
US11872042B2 (en) 2020-02-12 2024-01-16 Hi Llc Self-calibration of flux gate offset and gain drift to improve measurement accuracy of magnetic fields from the brain using a wearable neural detection system
US11604236B2 (en) 2020-02-12 2023-03-14 Hi Llc Optimal methods to feedback control and estimate magnetic fields to enable a neural detection system to measure magnetic fields from the brain
US11766217B2 (en) 2020-05-28 2023-09-26 Hi Llc Systems and methods for multimodal pose and motion tracking for magnetic field measurement or recording systems
US11428756B2 (en) 2020-05-28 2022-08-30 Hi Llc Magnetic field measurement or recording systems with validation using optical tracking data
US11779250B2 (en) 2020-05-28 2023-10-10 Hi Llc Systems and methods for recording biomagnetic fields of the human heart
US11779251B2 (en) 2020-05-28 2023-10-10 Hi Llc Systems and methods for recording neural activity
US11789533B2 (en) 2020-09-22 2023-10-17 Hi Llc Synchronization between brain interface system and extended reality system
US11604237B2 (en) 2021-01-08 2023-03-14 Hi Llc Devices, systems, and methods with optical pumping magnetometers for three-axis magnetic field sensing
US11803018B2 (en) 2021-01-12 2023-10-31 Hi Llc Devices, systems, and methods with a piezoelectric-driven light intensity modulator
WO2022182526A1 (en) 2021-02-26 2022-09-01 Hi Llc Brain activity tracking during electronic gaming
US11543885B2 (en) 2021-05-26 2023-01-03 Hi Llc Graphical emotion symbol determination based on brain measurement data for use during an electronic messaging session
EP4285821A1 (en) * 2022-05-12 2023-12-06 Koninklijke Philips N.V. Detecting nerve activity
DE102022209429A1 (en) * 2022-09-09 2024-03-14 Robert Bosch Gesellschaft mit beschränkter Haftung Device for detecting magnetic signals generated by a beating heart

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951674A (en) * 1989-03-20 1990-08-28 Zanakis Michael F Biomagnetic analytical system using fiber-optic magnetic sensors
US5269325A (en) * 1989-05-26 1993-12-14 Biomagnetic Technologies, Inc. Analysis of biological signals using data from arrays of sensors
US5755227A (en) * 1993-06-04 1998-05-26 Shimadzu Corporation Method and apparatus for deducing bioelectric current sources
WO2000010454A1 (en) * 1998-08-24 2000-03-02 Ctf Systems Inc. Functional brain imaging from magnetoencephalographic data
US6144872A (en) * 1999-04-30 2000-11-07 Biomagnetic Technologies, Inc. Analyzing events in the thalamus by noninvasive measurements of the cortex of the brain
US6195576B1 (en) * 1998-03-09 2001-02-27 New York University Quantitative magnetoencephalogram system and method
US20020019589A1 (en) * 1997-10-24 2002-02-14 Hitachi, Ltd. Magnetic field measurement apparatus
US6370414B1 (en) * 1998-01-23 2002-04-09 Ctf Systems, Inc. System and method for measuring, estimating and displaying RMS current density maps
US20040140799A1 (en) * 2002-10-16 2004-07-22 The Trustees Of Princeton University High sensitivity atomic magnetometer and methods for using same
US20050052650A1 (en) * 2003-09-05 2005-03-10 Zhen Wu System for high-resolution measurement of a magnetic field/gradient and its application to a magnetometer or gradiometer
US20050124848A1 (en) * 2002-04-05 2005-06-09 Oliver Holzner Method and apparatus for electromagnetic modification of brain activity
US20050234329A1 (en) * 2004-04-15 2005-10-20 Kraus Robert H Jr Noise cancellation in magnetoencephalography and electroencephalography with isolated reference sensors
US20060095220A1 (en) * 2004-11-01 2006-05-04 Vsm Medtech Systems Inc. Crosstalk reduction digital systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442404A (en) * 1978-12-19 1984-04-10 Bergmann Wilfried H Method and means for the noninvasive, local, in-vivo examination of endogeneous tissue, organs, bones, nerves and circulating blood on account of spin-echo techniques
US6377048B1 (en) * 2000-11-08 2002-04-23 Topspin Medical (Israel) Limited Magnetic resonance imaging device for operation in external static magnetic fields
US7177671B2 (en) * 2001-05-08 2007-02-13 Ge Medical Systems Global Technology Company, Llc RF coil, RF signal transmitter receiver, RF signal receiver, and magnetic resonance imaging system for the inferior abdomen
US7033673B2 (en) * 2003-07-25 2006-04-25 Analytical Services & Materials, Inc. Erosion-resistant silicone coatings for protection of fluid-handling parts
US20050124884A1 (en) * 2003-12-05 2005-06-09 Mirsaid Bolorforosh Multidimensional transducer systems and methods for intra patient probes
US7202667B2 (en) * 2004-06-07 2007-04-10 California Institute Of Technology Anisotropic nanoparticle amplification of magnetic resonance signals
EP1761792A2 (en) * 2004-06-17 2007-03-14 Koninklijke Philips Electronics N.V. Flexible and wearable radio frequency coil garments for magnetic resonance imaging
US20070167723A1 (en) * 2005-12-29 2007-07-19 Intel Corporation Optical magnetometer array and method for making and using the same

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951674A (en) * 1989-03-20 1990-08-28 Zanakis Michael F Biomagnetic analytical system using fiber-optic magnetic sensors
US5269325A (en) * 1989-05-26 1993-12-14 Biomagnetic Technologies, Inc. Analysis of biological signals using data from arrays of sensors
US5755227A (en) * 1993-06-04 1998-05-26 Shimadzu Corporation Method and apparatus for deducing bioelectric current sources
US20020019589A1 (en) * 1997-10-24 2002-02-14 Hitachi, Ltd. Magnetic field measurement apparatus
US6370414B1 (en) * 1998-01-23 2002-04-09 Ctf Systems, Inc. System and method for measuring, estimating and displaying RMS current density maps
US6195576B1 (en) * 1998-03-09 2001-02-27 New York University Quantitative magnetoencephalogram system and method
WO2000010454A1 (en) * 1998-08-24 2000-03-02 Ctf Systems Inc. Functional brain imaging from magnetoencephalographic data
US6144872A (en) * 1999-04-30 2000-11-07 Biomagnetic Technologies, Inc. Analyzing events in the thalamus by noninvasive measurements of the cortex of the brain
US20050124848A1 (en) * 2002-04-05 2005-06-09 Oliver Holzner Method and apparatus for electromagnetic modification of brain activity
US20040140799A1 (en) * 2002-10-16 2004-07-22 The Trustees Of Princeton University High sensitivity atomic magnetometer and methods for using same
US20050052650A1 (en) * 2003-09-05 2005-03-10 Zhen Wu System for high-resolution measurement of a magnetic field/gradient and its application to a magnetometer or gradiometer
US20050234329A1 (en) * 2004-04-15 2005-10-20 Kraus Robert H Jr Noise cancellation in magnetoencephalography and electroencephalography with isolated reference sensors
US20060095220A1 (en) * 2004-11-01 2006-05-04 Vsm Medtech Systems Inc. Crosstalk reduction digital systems

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GROEGER ET AL: "Laser-pumped cesium magnetometers for high-resolution medical and fundamental research", SENSORS AND ACTUATORS A, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. 129, no. 1-2, 24 May 2006 (2006-05-24), pages 1 - 5, XP005427187, ISSN: 0924-4247 *
SCHWINDT PETER ET AL: "Chip-scale atomic magnetometer with improved sensitivity by use of the Mx technique", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, vol. 90, no. 8, 21 February 2007 (2007-02-21), pages 81102 - 081102, XP012096101, ISSN: 0003-6951 *

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US20090149736A1 (en) 2009-06-11
WO2008127720A2 (en) 2008-10-23
WO2008127720A9 (en) 2009-01-22
US20100219820A1 (en) 2010-09-02
US9167979B2 (en) 2015-10-27

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