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This page is updated frequently with new Magnetic Field-related patent applications. Subscribe to the Magnetic Field RSS feed to automatically get the update: related Magnetic RSS feeds. RSS updates for this page: Magnetic Field RSS RSS


Establishing wireless communication via proximity detection

Establishing wireless communication via proximity detection

Mobile terminal

Lg Electronics

Mobile terminal

Mobile terminal

Antenna configuration for dynamic re-distribution of magnetic fields

Date/App# patent app List of recent Magnetic Field-related patents
06/25/15
20150181688
 Neutron generator patent thumbnailNeutron generator
A neutron generator includes a sealed envelope providing a low pressure environment for a gas of hydrogen isotope(s). One end of the envelope defines an ion source chamber.
Schlumberger Technology Corporation
06/25/15
20150181631
 Establishing wireless communication via proximity detection patent thumbnailEstablishing wireless communication via proximity detection
The present disclosure relates to computer-implemented systems and methods for wireless communication via proximity detection. The method may include determining, by a computer via a plurality of induction coils in a proximity transponder, a magnetic field emitted from a base station.
06/25/15
20150181005
 Mobile terminal patent thumbnailMobile terminal
There is disclosed a mobile terminal including a case, a first antenna mounted in the case to perform wireless communication in a specific frequency band, a grounding surface mounted in the case, a receiver mounted in the case, toward a front surface of the case, a battery cover coupled to a rear surface of the case, the battery cover comprising a conductive portion, and a contact pin configured to connect the conductive portion and the grounding surface with each other, wherein the contact pin is formed in a predetermined portion where a phase of an electromagnetic field formed by the first antenna changes. The mobile terminal may adjust the had grade to a base grade or higher of the hac by adjusting the position of the electromagnetic field peak, regardless of the size of the mobile terminal..
Lg Electronics Inc.
06/25/15
20150180552
 Antenna configuration for dynamic re-distribution of magnetic fields patent thumbnailAntenna configuration for dynamic re-distribution of magnetic fields
Described herein are architectures, platforms and methods for dynamic re-distribution of magnetic fields in a device during near field communication (nfc) related functions or transactions and/or wireless charging.. .
06/25/15
20150180442
 Apparatus for radiative wireless power transmission and wireless power reception patent thumbnailApparatus for radiative wireless power transmission and wireless power reception
Provided is an apparatus that may control a direction of wireless power transmission. A radiative wireless power transmitter may include at least two first unit resonators to form a magnetic field with a target resonator based on an x-axis direction and a z-axis direction, and to transmit a resonance power to the target resonator, at least two second unit resonators to form a magnetic field with the target resonator based on the x-axis direction and a y-axis direction, and to transmit a resonance power to the target resonator, at least two third unit resonators to form a magnetic field with the target resonator based on the y-axis direction and the z-axis direction, and to transmit a resonance power to the target resonator, and a feeding unit to control resonance power transmission of the at least two first unit resonators, the at least two second unit resonators, and the at least two.
Samsung Electronics Co., Ltd.
06/25/15
20150180375
 Method and  generating energy using piezo elements patent thumbnailMethod and generating energy using piezo elements
An energy-generating apparatus includes at least one magnetic field-generating apparatus configured to at least intermittently generate a magnetic field that varies over time. The energy-generating apparatus also includes at least one magnetic field interaction means and at least one energy-generating apparatus designed as a piezo element device..
Gsi Helmholtzzentrum Fuer Schwerionenforschung Gmbh
06/25/15
20150180337
 Dc/dc converter and display device patent thumbnailDc/dc converter and display device
There are provided a dc/dc converter and a display device. The dc/dc converter includes: an inductor connected to an input terminal; a switching element connected between the inductor and the earth; a diode connected between the inductor and an output terminal; a capacitor connected between the output terminal and the earth; a feedback circuit connected between the output terminal and the earth and outputting a feedback voltage; and an oscillating circuit performing an on/off control of the switching element at a frequency corresponding to the received feedback voltage.
Nlt Technologies, Ltd.
06/25/15
20150180321
 Electromagnetic generator and  using same patent thumbnailElectromagnetic generator and using same
An electromagnetic generator comprises one or more flux assembly having at least one coil and at least one magnetic field source separated by a gap. An interference drum has a sidewall at least partially positioned inside the gap and comprising at least one magnetic field permeable zone and at least one magnetic field impermeable zone.
06/25/15
20150180313
 Rotating electric machine patent thumbnailRotating electric machine
A rotating electric machine comprises: a rotating shaft; and a rotor which includes a conductor capable of generating a rotating magnetic field and is provided on a peripheral surface of the rotating shaft so as to be rotatable integrally therewith. The rotating shaft includes: an oil supply passage passing within the rotating shaft; and an oil supply hole which extends from the oil supply passage to the peripheral surface of the rotating shaft and opens opposite to the rotor.
Kabushiki Kaisha Toyota Jidoshokki
06/25/15
20150180267
 Method and  wireless charging of a bioelectronic device implanted in a laboratory animal or in a human being patent thumbnailMethod and wireless charging of a bioelectronic device implanted in a laboratory animal or in a human being
The invention relates to an apparatus for charging a remote feedable circuit bioelectronic implanted in a patient or in a laboratory animal, said apparatus comprising a composable container configured to define a closed environment suitable to receive a patient or a laboratory animal, said container comprising a plurality of composable walls made of a nonmagnetic material and connected to each other so as to define said closed environment, said container comprising at least one first winding whose axis is arranged in a first direction (z) and at least one second winding whose axis is arranged in a second direction (y) perpendicular to said first direction (z). The apparatus further comprises a system for powering and driving the windings of the composable container, said system comprising a switching power driver for each winding, a plurality of phase locked loop circuits respectively connected to each switching power driver and connected to a programmable logic circuit of the powering and driving system, said programmable logic circuit being configured to perform a phase comparison, the programmable logic circuit being in turn connected to a microprocessor of the powering and driving system, said microprocessor being configured to provide driving signals to the windings for generating inside the container a rotating magnetic field..
Ab Medica S.p.a
06/25/15
20150180251

Apparatus for wirelessly charging a rechargeable battery


The present application relates to apparatus for wirelessly charging a rechargeable battery, the apparatus comprising: a charging resonator assembly for converting energy from a magnetic field external to the apparatus into an electric current; and a charging circuit for charging the battery using the electric current, wherein the charging resonator assembly includes a plurality of microelectromechanical system (mems) switches which, when open, divide the charging resonator into a plurality of electrically unconnected resonator portions, and which, when closed, connect the plurality of resonator portions to form a continuous resonator.. .
Cambridge Silicon Radio Limited
06/25/15
20150180187

Rotor for rotating electrical machine and manufacturing the same


A rotor for a rotating electrical machine includes terminals (8) and (9) that connect a slip ring (14) with a magnetic field coil (2), wherein the terminals (8) and (9) include link element portions (8a) and (9a) extending in a rotation axis direction and radially-extending portions (8b) and (9b) extending in a radial direction, respectively, and at an end of each of the radially-extending portions (8b) and (9b) are provided a winding connection section (10) connected with lead wires (6) of the magnetic field coil and a positioning section (15) that is provided circumferentially adjacently to the winding connection section and serves for positioning when molded.. .
Mitsubishi Electric Corporation
06/25/15
20150180136

Antenna device and electronic apparatus


A square bracket-shaped radiation element is in a non-ground region of a board. A first reactance element that equivalently enters a short-circuited state in a second frequency band is connected between a second end of the radiation element and a ground conductor.
Murata Manufacturing Co., Ltd.
06/25/15
20150180106

Bandpass microwave filter tunable by relative rotation of an insert section and of a dielectric element


A bandpass filter for microwave-frequency wave which is frequency tunable, comprises at least one resonator. Each resonator comprises a cavity having a conducting wall substantially cylindrical in relation to an axis z, and at least one dielectric element disposed inside the cavity.
Centre National D'etudes Spatiales
06/25/15
20150180105

Bandpass microwave filter tunable by rotation of a dielectric element


A frequency tunable microwave bandpass filter comprises a resonator, including: a cavity with conducting wall substantially cylindrical with axis z having height h, and partially closed at both ends; and a dielectric element inside the cavity. The resonator resonates at two perpendicular polarizations having distributions of electromagnetic field in the cavity deduced from each other by 90° rotation.
Centre National D'etudes Spatiales
06/25/15
20150179928

Magnetic memory circuit with stress inducing layer


Memory circuit comprising an addressable magnetic tunnel junction (mtj) stack, forming a magnetic storage element in the circuit. The mtj stack comprises a tunnel oxide layer between a free layer and a fixed layer.
Iii Holdings 1, Llc
06/25/15
20150179404

Plasma processing apparatus


In a vacuum arc discharge deposition apparatus, an orifice plate having an opening is arranged in a state of being insulated from a magnetic field duct including at least one curved portion for transporting a deposition particle in the middle of the at least one curved portion, in which a neutral particle and a charged particle are removed by applying a voltage to the orifice plate.. .
Canon Kabushiki Kaisha
06/25/15
20150179383

Power supply circuit


A power supply circuit for electronic equipment that might be affected by overheating or by a fire, the power supply circuit including a bistable switch switchable between a first state in which the input terminal is connected to the output terminal, and a second state in which the input terminal is not connected to the output terminal, a first coil, and a second coil, the bistable switch being configured to switch to the first state when the magnetic field induced by the second coil is greater than the magnetic field induced by the first coil, and to switch to the second state when the magnetic field induced by the first coil is greater than the magnetic field induced by the second coil.. .
Snecma
06/25/15
20150179337

Method and preparing rare earth sintered magnet


A mold comprising a die, an upper punch, and a lower punch, the pressure surface of one or both of the upper and lower punches being shaped non-planar, a cavity being defined between the die and the lower punch, is combined with a feeder including a shooter provided with a main sieve at its lower end port, the main sieve having a sifting surface of substantially the same non-planar shape as the pressure surface. A rare earth sintered magnet is prepared by feeding an alloy powder into the cavity through the shooter and sieve while applying weak vibration to the shooter, applying a uniaxial pressure to the alloy powder fill in the cavity under a magnetic field to form a precursor, and heat treating the precursor..
Shin-etsu Chemical Co., Ltd.
06/25/15
20150179336

Method and preparing rare earth sintered magnet


A mold comprising a die, an upper punch, and a lower punch, the pressure surface of one or both of the upper and lower punches being shaped non-planar, a cavity being defined between the die and the lower punch, is combined with a feeder including a shooter provided with a main sieve at its lower end port, the main sieve having a sifting surface of substantially the same non-planar shape as the pressure surface. A rare earth sintered magnet is prepared by feeding an alloy powder into the cavity through the shooter and sieve while applying weak vibration and vertical reciprocation to the shooter, applying a uniaxial pressure to the alloy powder fill in the cavity under a magnetic field to form a precursor, and heat treating the precursor..
Shin-etsu Chemical Co., Ltd.
06/25/15
20150179332

Coil arrangement for generating a rotating electromagnetic field and positioning system for determining a position of an identification transmitter


A coil arrangement is provided for generating a rotating electromagnetic field, comprising at least three coils, each having at least one associated coil winding. The coil arrangement further comprises a ferromagnetic coil yoke which establishes a magnetic coupling between the at least three coils..
Volkswagen Aktiengesellschaft
06/25/15
20150179327

Apparatus and fine-tuning magnet arrays with localized energy delivery


One embodiment relates to an apparatus for adjustment of local magnetic strength in a magnetic device. A stage holds the magnetic device, and a sensor measures a magnetic field at locations above the magnetic device so as to generate magnetic field data.
Kla-tencor Corporation
06/25/15
20150179325

Magnetic pre-conditioning of magnetic sensors


Methods, systems and apparatus are provided to apply a magnetic pre-conditioning to magnetic tunneling junction (mtj) sensors and other micro-magnetic devices after fabrication but before testing, trimming or other subsequent processing. The fabricated sensor device is passed through a magnetic field that has a known direction and orientation relative to the device so that the device is placed into a known state prior to final testing and trimming.
06/25/15
20150179321

Controlled liquid/solid mobility using external fields on lubricant-impregnated surfaces


A method for precise control of movement of a motive phase on a lubricant-impregnated surface includes providing a lubricant-impregnated surface, introducing the motive phase onto the lubricant-impregnated surface, and exposing the droplets to an electric and/or magnetic field to induce controlled movement of the droplets on the surface. The lubricant-impregnated surface includes a matrix of solid features spaced sufficiently close to stably contain the impregnating lubricant therebetween or therewithin.
Massachusetts Institute Of Technology
06/25/15
20150179281

Data retention error detection system


A particular method includes selecting a threshold data retention time of a magnetic tunnel junction (mtj) memory cell. A pinned layer of the mtj memory cell has a first direction of magnetization, and a free layer of the mtj memory cell has a second direction of magnetization.
Qualcomm Incorporated
06/25/15
20150179192

Stray field shielding for perpendicular magnetic recording write head


The present invention relates to stray magnetic shielding in pmr systems. The stray magnetic fields can funnel through the magnetic write head into the recording medium and lead to degradation in performance, even erasure.
Hgst Netherlands B.v.
06/25/15
20150177690

Optimized escapement


This wheel set (40) includes a magnetized track (50) with an angular period of travel (pd) over which its magnetic characteristics are repeated, this stopper (30) includes a magnetized or ferromagnetic pole shoe (3), mobile in a transverse direction (dt) relative to the direction of travel (dd) of an element of a surface (4) of this track (50), and this pole shoe (3) or this track (50) creates a magnetic field in a pole gap (5) between this pole shoe (3) and this surface (4), and this pole shoe (3) is opposite a magnetic field barrier (46) on this track (50) just before each transverse motion of this stopper (30) commanded by the periodic action of this resonator (20), this stopper (30) being multistable, arranged to occupy at least two stable positions.. .
06/25/15
20150177413

Method and apparatus to generate a crosswell data set


Systems, methods, and apparatuses to generate a crosswell data set are described. In certain aspects, a method includes producing a first electromagnetic field at the earth's surface with a transmitter at a first location, detecting in a first borehole a first field signal induced by the first electromagnetic field, detecting in a second borehole a second field signal induced by the first electromagnetic field, and generating a crosswell data set from the first field signal and the second field signal.
Schlumberger Technology Corporation
06/25/15
20150177353

Method for magnetic resonance imaging with controlled aliasing


A method for imaging a subject with a magnetic resonance imaging (mri) system using controlled aliasing is provided. A radio frequency (rf) excitation field is applied to excite the spins in a volume-of-interest that may include multiple slice locations.
The General Hospital Corporation
06/25/15
20150177348

Biosensor, palm-sized device and method based on magnetic resonance relaxometry


In accordance with one aspect of this disclosure, there is provided a device for performing magnetic resonance relaxometry. The device comprises a radio-frequency spectrometer comprising at least one field-programmable gate array chip; a power amplifier electrically connected with the radio-frequency spectrometer and amplifying an electrical output of the radio-frequency spectrometer, thereby producing an amplified electrical signal comprising between about 0.1 watts and about 10 watts power; a duplexer configured to isolate the radio-frequency spectrometer from the amplified electrical signal during a receiving mode of the device; a radio-frequency detection probe configured to transmit radio-frequency electromagnetic radiation to excite nuclei under resonance during a transmission mode of the device, the radio-frequency detection probe comprising a detection coil comprising an inner diameter of less than about 1 millimeter; and at least one magnet supplying an external magnetic field to a detection region of the radio-frequency detection probe, the external magnetic field being less than about 3 tesla..
Massachusetts Institute Of Technology
06/25/15
20150177347

Magnetic resonance imaging apparatus, gradient coil unit for magnetic resonance imaging manufacturing gradient coil unit for magnetic resonance imaging apparatus


According to one embodiment, a gradient coil unit for a magnetic resonance imaging apparatus includes gradient coils for forming gradient magnetic fields in mutually orthogonal three axis directions. At least one of the gradient coils includes a conductor part along a coil pattern and a holding part holding the coil pattern.
Toshiba Medical Systems Corporation
06/25/15
20150177346

Non-invasive prostate coil for mr systems with vertical main field


An inductively coupled magnetic resonance local prostate radio frequency coil (10) includes at least two connected electrically conductive loops (50) and an interface device (80). The at least two connected electrically conductive loops (50) are tuned to receive magnetic resonance radio frequency signal components along an axis of a subject disposed in a main magnetic field (b0) orthogonal to the axis of the subject (i.e.
Koninklijke Philips N.v.
06/25/15
20150177343

System and portable magnetic resonance imaging using a rotating array of permanent magnets


A portable magnetic resonance imaging (“mri”) system that uses static magnetic field inhomogeneities in the main magnet for encoding the spatial location of nuclear spins is provided. Also provided is a spatial-encoding scheme for a low-field, low-power consumption, light-weight, and easily transportable mri system.
The General Hospital Corporation
06/25/15
20150177339

Current difference sensors, systems and methods


Embodiments relate to current difference sensors, systems and methods. In an embodiment, a current difference sensor includes first and second conductors arranged relative to one another such that when a first current flows through the first conductor and a second current, equal to the first current, flows through the second conductor, a first magnetic field induced in the first conductor and a second magnetic field induced in the second conductor cancel each other at a first position and a second position; and first and second magnetic field sensing elements arranged at the first and second positions, respectively..
Infineon Technologies Ag
06/25/15
20150177338

Dla rotor flux density scan method and tool


A method of measuring flux density and run out to accommodate rotors of different diameters, evaluate intrinsic properties of magnet material and the magnetization process. Circular run out measurement capability is also used to evaluate bearing journal “ovality.” the method includes the use of a scan tool, or a dla rotor flux density scan fixture, which evaluates the electromagnetic field strength (gauss), combined with surface run out and presents the data in a scalable pictorial format.
Continental Automotive Systems, Inc.
06/25/15
20150177337

Magnetic sensor and magnetic detecting the same


The present invention relates to a magnetic sensor and a magnetic detecting method of the same capable of detecting at least a magnetic field perpendicular to a substrate and a magnetic field parallel to the substrate in a state where the respective magnetic field components are mixed. One embodiment of the magnetic sensor detects a magnetic field of the orthogonal three axes, and includes a magnetic detector including a magnetic field sensitive material configured to detect a magnetic field component in a first direction, a magnetic field direction converters configured to convert a magnetic field component in a second direction and a magnetic field component in a third direction into magnetic field components in the first direction, the second direction being perpendicular to the first direction, the third direction being perpendicular to both of the first and the second directions..
Asahi Kasei Microdevices Corporation
06/25/15
20150177286

Current sensor, current measuring module, and smart meter


A current sensor comprises a plurality of magnetoresistance elements and a first magnetic body. The plurality of magnetoresistance elements each have their resistance value change by being applied with an current-induced magnetic field from a current to be measured.
Kabushiki Kaisha Toshiba
06/25/15
20150177285

Current sensor, current measuring module, and smart meter


A current sensor comprises: a plurality of magnetoresistance elements whose resistance value changes by application of an current-induced magnetic field from a current-to-be-measured; and a selection circuit that selects one magnetoresistance element from these plurality of magnetoresistance elements and outputs a signal of a selected magnetoresistance element. In the plurality of magnetoresistance elements, relationships between a magnitude of the applied current-induced magnetic field and the resistance value are different from each other..
Kabushiki Kaisha Toshiba
06/25/15
20150177284

Current sensor and current sensor module


According to one embodiment, a current sensor includes a first sensor element and a power line. The first sensor element includes a first electrode, a second electrode, and a first stacked body.
Kabushiki Kaisha Toshiba
06/25/15
20150177125

Measurement system using optical waveguide


According to one embodiment, a measurement system which includes an optical waveguide, magnetic fine particles, a first magnetic field application unit, a second magnetic field application unit and a controller is provided. A first material specifically bonding with a target substance is immobilized on a surface of the optical waveguide.
Kabushiki Kaisha Toshiba
06/25/15
20150177122

Cell sorting system using electromagnetic solenoid


A mems-based cell sorting system is disclosed, which uses a novel combination of features to accomplish the cell sorting in the microfabricated channels housed in a disposable cartridge. The mems-based cell sorting system may include a microfabricated cell sorting valve that is responsive to an applied magnetic field.
Owl Biomedical, Inc.
06/25/15
20150177020

Method and data fusion of a three-axis magnetometer and three axis accelerometer


Method and apparatus of integrating a three-axis magnetometer and a three-axis accelerometer to provide attitude and heading, calibrated magnetometer and accelerometer data, and angular rate, while removing sensor error sources over time and temperature and to compensate for hard and soft iron distortions of the earth magnetic field. Filtered accelerometer data are corrected to account for various error sources.
Memsic, Inc.
06/25/15
20150176964

Magnetic field sensor and related techniques that inject an error correction signal into a signal channel to result in reduced error


A magnetic field sensor has an error correction signal generator circuit to inject an error correction signal into a primary signal channel to cancel an error signal component in the primary signal channel.. .
Allegro Microsystems, Llc
06/25/15
20150176963

Magnetic field sensor and related techniques that inject a synthesized error correction signal into a signal channel to result in reduced error


A magnetic field sensor has an error correction signal generator circuit to inject an error correction signal into a primary signal channel to cancel an error signal component in the primary signal channel.. .
Allegro Microsystems, Llc
06/25/15
20150176962

Magnetic field sensor and sensing relative location of the magnetic field sensor and a target object along a movement line


A magnetic field sensor with a magnet is disposed proximate to a ferromagnetic target object having at least one ferromagnetic surface. The magnetic field sensor is operable to sense a relative location between the magnetic field sensor and the ferromagnetic target object along a movement line.
Allegro Microsystems, Llc
06/25/15
20150176961

Adaptive fluoroscope location for the application of field compensation


Compensation for a field-perturbing element in a magnetic tracking system for locating a probe is achieved by creating a reaction field model while the field-perturbing element is in known positions. A magnetic field location sensor is disposed between the field-perturbing element and magnetic field generators of the tracking system.
Biosense Webster (israel) Ltd.
06/25/15
20150176147

Method for forming a body comprising a particle structure fixated in a matrix material


The invention relates to a method for forming a body comprising a particle structure fixated in a matrix material, comprising—providing an amount of particles,—providing a viscous matrix material to include said particles—forming a particle structure of at least a portion of said amount of particles—fixating said viscous matrix so as to fixate said particle structure in the matrix material characterised by at least a portion of said amount of particles being paramagnetic or ferromagnetic, and the formation of the particle structure includes the steps of: - subjecting the particles to a first field, so as to arrange at least a portion of said particles into particle assemblies, each particle assembly comprising a plurality of particles and extending along a flux direction of said first field, and—subjecting the particle assemblies to a second field, so as to move and/or rotate said particle assemblies along a flux direction of said second field,—wherein one of said first and second fields is a magnetic field, and the other of said first and second fields is an electric field, or a magnetic field having a different flux direction than said one magnetic field. The invention also relates to a body obtained by said method, and to the use of said method in various applications..
Institutt For Energiteknikk
06/25/15
20150175120

Pedestrian protection system for a vehicle


A pedestrian protection system for a vehicle, having at least one impact-detecting sensor and a deformable element that are arranged between a cross-member and a bumper cover of the vehicle, and a control unit that analyzes the signals of the at least one sensor. In order to reduce the amount of space required, the deformable element is designed as a deformable member that it has a cavity in which the at least one sensor is arranged and detects changes in an electromagnetic field in the cavity..
Volkswagen Aktiengesellschaft
06/25/15
20150174822

Apparatus and adjusting and controlling the stacking-up layer manufacturing


An apparatus of adjusting and controlling the stacking-up layer manufacturing comprises a target, a powder providing unit, an energy generating unit, and a magnetism unit. The powder providing unit is coupled on a top of the target.
Industrial Technology Research Institute
06/25/15
20150174574

Systems and methods for an integrated bio-entity manipulation and processing device


An integrated semiconductor device for manipulating and processing bio-entity samples is disclosed. The device includes a microfluidic channel formed between a first substrate and a second substrate and a microfluidic grid formed over the first substrate and coupled to the microfluidic channel to manipulate a droplet within the microfluidic channel.
Taiwan Semiconductor Manufacturing Company, Ltd.
06/25/15
20150174423

Optimising current direction and intensity of transcranial magnetic stimulation


A method of optimising transcranial magnetic stimulation is described. An electrical signal is applied to a coil to generate one or more magnetic field pulses for transcranial magnetic stimulation of a target cortical region of a patient.
Monash University
06/25/15
20150174422

Tumor treatment with free radical lifetimes enhanced by persistent low strength magnetic field


In the treatment of a tumor with radiation therapy is enhanced by a weak magnetic field, the field strength time sequence of exposure and shape and contour of the magnetic field are varied to achieve desired results. In one separate aspect, exposure to a magnetic field is continued after exposure to a free radical-creating therapy is ceased or diminished, thereby increasing the lifetimes of free radicals which have already been created.
06/25/15
20150174420

Method and detecting a shock applied to a patient during cpr


Method and apparatus for detecting electric energy delivered to the heart of a body when performing defibrillation. The method comprises the steps of applying a defibrillator with electrodes placed on opposite sides of the heart; applying an apparatus on the body and between said electrodes for detecting and measuring electric and/or magnetic fields; performing defibrillation by delivering electric energy to the body; detecting electric energy running through the heart with said apparatus, and indicating electric energy applied to the heart.
Laerdal Medical As
06/25/15
20150173643

Low-profile location pad for magnetic-based intra-body probe tracking system


A location pad includes a housing having a flat surface and multiple field generators. The multiple field generators are fixed to the housing and are configured to generate respective magnetic fields having respective axes that are perpendicular to the flat surface..
Biosense Webster (israel) Ltd.
06/25/15
20150173407

Ionically charged nutritional supplement, process of making and apparatus therefore


A mineral-containing formulation is taught that is exposed to a magnetic field effective for converting the molecular ion structures of the starting materials to a stable negative polarity charge within the product. A device, in the form of an ionic charge magnetron is taught for enhancing the molecular ion structures of the starting materials to a stable negative polarity charge within the product..
P-tech Holdings, Inc.
06/25/15
20150173327

Threshold barrier system


An animal containment system is described that comprises a transmitter unit and a receiver, the transmitter unit comprising a transmitter coil and signal generator. The signal generator transmits a modulated activation signal through the coil and generates a uniform magnetic field within a region around the coil.
Radio Systems Corporation
06/18/15
20150173167

Coaxial microwave applicator for plasma production


The disclosure includes a coaxial microwave applicator for plasma production, including a coaxial tube formed by a central core and an outer conductor separated from the central core by an annular space allowing propagation of microwaves. The applicator includes: a cylindrical permanent magnet disposed at the end of the central core; and at least one annular permanent magnet disposed at the end of the outer conductor, all of the magnets disposed at the end of the coaxial tube having the same direction of magnetisation.
Universite Joseph Fourier - Grenoble 1
06/18/15
20150172822

Loudspeaker driver with dual electromagnet assemblies and loudspeaker system


Loudspeaker drivers are provided. According to one embodiment, a loudspeaker driver comprises a diaphragm, a connection tube, first and second voice coils, and first and second magnet assemblies.
06/18/15
20150171931

Wireless power transmission network and wireless power transmission method


The present invention relates to a wireless power transmission network and to a wireless power transmission method. In the wireless power transmission method according to one aspect of the present invention, a base station, which wirelessly transmits power using a magnetic field, performs in-band communication through the magnetic field used for wireless power transmission in order to determine whether an electronic device receiving power is in a charging area or in a communication area, and transmits wireless power accordingly..
Intellectual Discovery Co., Ltd.
06/18/15
20150171736

Power converter with noise-current reduction capacitor


In a power converter, an external terminal, a case, and capacitors are arranged to provide a conductive loop. The conductive loop defines thereinside a first region through which magnetic flux of an ac magnetic field penetrates, and a second region through which the magnetic flux penetrates.
Nippon Soken, Inc.
06/18/15
20150171717

Net shaped aligned and sintered magnets by modified mim processing


A method of making a permanent magnet and a permanent magnet. The method includes using metal injection molding to mix a magnetic material with a binder into a common feedstock and injection mold the feedstock into a predetermined magnet shape.
Gm Global Technology Operations Llc
06/18/15
20150171694

Halbach motor and generator


A motor includes two magnetically coupled, coaxially-nested halbach cylinder rotors, one of which passes through a toroidal series of at least two stator coils while the other is attached to an axle or other means of transferring mechanical power. An embodiment is described comprising an additional third halbach cylinder rotor in which a circumferential arrangement of permanent magnets is mounted rotatably and proximally outside the stator coils, coaxial with the stator coils.
06/18/15
20150171683

Motor


A motor including a stator, and a rotor adapted to rotate, wherein the stator includes a stator body, a plurality of teeth protruding from the stator body toward the rotor, and at least one stator magnetic barrier provided to each of the teeth to interrupt magnetic flux. A magnetic field produced in a direction parallel to the outer circumferential surface of the rotor is attenuated, and therefore demagnetization of permanent magnets included in the rotor may be prevented..
Samsung Electronics Co., Ltd.
06/18/15
20150171660

Charging device, electronic equipment, and charging situation notifying method


A charging system 100 includes an electronic equipment 1 and a charging device 2. The charging device 2 includes a control unit 22 that controls a magnetic field generated from a variable magnetic field generating unit 25 which generates a variable magnetic field, and the control unit 22 controls a strength of the magnetic field generated from the variable magnetic field generating unit 25, in accordance with a remaining capacity or an available charging free capacity in a battery 11 of the electronic equipment 1 receiving a power transmitted from a feed circuit 21..
Fujifilm Corporation
06/18/15
20150171636

Reverse link signaling via receive antenna impedance modulation


Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near-field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency.
Qualcomm Incorporated
06/18/15
20150171544

Gapping measurement sensor for hv connector


A cable for connecting to a connector of a high-voltage device includes an integral yield sensor. The yield sensor may be a pressure or force sensor, or a displacement sensor, including a stator part and a mobile part, and a spring for maintaining a compression force on the end portion of the cable towards the connector of the high-voltage device.
Comet Holding Ag
06/18/15
20150171516

Sub-nyquist complex-holographic aperture antenna configured to define selectable, arbitrary complex electromagnetic fields


Described embodiments include an antenna, method, and an apparatus. The antenna includes a sub-nyquist complex-holographic aperture configured to define at least two selectable, arbitrary complex radiofrequency electromagnetic fields on a surface with tangential wavenumbers up to 2π over the aperture element spacing (k_apt=2π/a)..
Elwha Llc
06/18/15
20150171514

System wirelessly transferring power to a target device over a modeled transmission pathway without exceeding a radiation limit for human beings


Described embodiments include a system, method, and apparatus. The system includes an antenna comprising a sub-nyquist holographic aperture configured to define selectable arbitrary complex radiofrequency electromagnetic fields on a surface of the antenna.
Elwha Llc
06/18/15
20150171513

System wirelessly transferring power to a target device over a tested transmission pathway


Described embodiments include a system, method, and apparatus. A system includes an antenna comprising a sub-nyquist holographic aperture configured to define selectable arbitrary complex radiofrequency electromagnetic fields on a surface of the antenna.
Elwha Llc
06/18/15
20150171512

Sub-nyquist holographic aperture antenna configured to define selectable, arbitrary complex electromagnetic fields


Described embodiments include an antenna, method, and an apparatus. The antenna includes a sub-nyquist holographic aperture configured to define at least two selectable, arbitrary complex radiofrequency electromagnetic fields on a surface with tangential wavenumbers up to the free-space wavenumber (k0).
Elwha Llc
06/18/15
20150171499

Non-reciprocal circuit element


A non-reciprocal circuit element includes high-pass-type first and second isolators, which are each provided with first and second central electrodes that are arranged on a ferrite so as to cross each other while being insulated from each other, the ferrite being applied with a direct-current magnetic field by permanent magnets. One end of the first central electrode defines an input port and another end of the first central electrode defines an output port, and one end of the second central electrode defines the input port and another end of the second central electrode defines a ground port.
Murata Manufacturing Co., Ltd.


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Magnetic Field topics: Magnetic Field, Transverse, Magnetic Separator, Homogeneous, Photovoltaic Cell, Semiconductor, Compliance, Anisotropy, Crystallin, Electrical Machine, Wireless Power, Transmitter, Radial Direction, Eddy Currents, Calibration

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