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4069results about "Electromagnetic wave system" patented technology
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Systems and Methods for Wireless Power
ActiveUS20090058361A1Extend the lifespanImprove performanceElectrotherapyBatteries circuit arrangementsElectric power transmissionElectric power system
The present invention is a wireless power system which includes components which can be recharged by harvesting wireless power, wireless power transmitters for transmitting the power, and devices which are powered from the components. Features such as temperature monitoring, tiered network protocols including both data and power communication, and power management strategies related to both charging and non-charging operations, are used to improve performance of the wireless network. Rechargeable batteries which are configured to be recharged using wireless power have unique components specifically tailored for recharging operations rather than for providing power to a device. A wireless power supply for powering implanted devices benefits from an external patient controller which contains features for adjusting both power transmission and harvesting provided by other components of the wireless power network.
Owner:WITRICITY CORP
Apparatus for energizing a remote station and related method
InactiveUS6615074B2Eliminate needEasy to useElectrotherapyTelemetry/telecontrol selection arrangementsStored energyMiniaturization
Owner:PITTSBURGH UNIV OF
Method and apparatus for delivering energy to an electrical or electronic device via a wireless link
A method and apparatus for providing power to e.g., a chargeable device via a radio frequency link. In one aspect, a method of providing power to a chargeable device via radio frequency link comprises generating a substantially un-modulated signal. The method further comprises radiating a substantially un-modulated radio frequency (RF) signal to the chargeable device via a transmit antenna based on the substantially un-modulated signal. The method further comprises powering or charging the chargeable device with power delivered by the substantially un-modulated RF signal.
Owner:QUALCOMM INC
Rotary data and power transfer system
InactiveUS20120007442A1Increase distanceIncreases useful information rateElectromagnetic wave systemTransformersElectricityElectric power transmission
A data and power transfer system comprising a first system unit which includes a first communication element operable to transfer communication signals and a first connector element operable to transfer electrical power; and a second system unit which includes a second communication element operable to transfer communication signals and a second connector element operable to transfer electrical power, wherein the first communication element and second communication element are operable to transfer data between one another and the first connector element and second connector element are operable to transfer electrical power whilst electrically insulated from one another.
Owner:WFS TECH
Powering cell phones and similar devices using RF energy harvesting
InactiveUS20090102296A1Maximizing selectivity of frequencyElectromagnetic wave systemSupport structure mountingCore componentRf energy harvesting
A device for receiving wireless power includes a point of reception, wherein the point of reception is positionable in at least a first position and a second position. A method for receiving wireless power. The method includes the steps of positioning a point of reception in contact with a housing to a first position. There is the step of receiving wireless power at the point of reception and providing it to a power harvester in the housing. There is the step of converting the wireless power to usable DC with the power harvester. There is the step of providing the usable DC to core components in the housing. There is the step of using the DC by the core components. There is the step of repositioning the point of reception to a second position. There is the step of receiving wireless power at the point of reception at the second position and providing it to the power harvester. There is the step of converting the wireless power received by the point of reception in the second position to usable DC with the power harvester. There is the step of providing the usable DC to the core components in the housing. There is the step of using the DC by the core components.
Owner:POWERCAST
Short-range wireless power transmission and reception
InactiveUS20060238365A1Avoid the needReduce distancePower managementBatteries circuit arrangementsTransmitted powerEngineering
A short-range wireless power transmission and reception system and method are provided. Power is transmitted from the electrical utility mains power supply to electrically powered appliances via electromagnetic radiation. The appliances are capable of receiving the transmitted power, converting it into electricity and storing it for subsequent use, as well as using it directly to power the appliances.
Owner:VECCHIONE ELIO +1
Method and apparatus for wirelessly transferring power and communicating with one or more slave devices
InactiveUS20110156640A1Improve communication efficiencyImprove power efficiencyCircuit authenticationElectromagnetic wave systemWireless transmissionDirectional antenna
Some embodiments provide a system for charging devices. The system includes a master device and a slave device. Some embodiments provide a method for charging devices in a system that includes a slave device and a master device. The slave device includes (1) an antenna to receive a radio frequency (RF) beam and (2) a power generation module connected to the antenna that converts RF energy received by the slave antenna to power. The master device includes (1) a directional antenna to direct RF power to the antenna of the slave device and (2) a module that provides power to the directional antenna of the master device.
Owner:CREEKVIEW IP LLC
Wireless energy transfer systems
ActiveUS20100141042A1Efficient deliveryEfficient energy transferMultiple-port networksNear-field transmissionEnergy transferCondensed matter physics
Described herein are improved capabilities for a source resonator having a Q-factor Q1>100 and a characteristic size x1 coupled to an energy source, and a second resonator having a Q-factor Q2>100 and a characteristic size x2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.
Owner:WITRICITY CORP
High Efficiency and Power Transfer in Wireless Power Magnetic Resonators
InactiveUS20090072629A1Improve efficiencyIncrease powerNear-field transmissionElectromagnetic wave systemCouplingEngineering
Techniques for wireless power transmission at levels that induce high power transfer and / or high efficiency of coupling.
Owner:QUALCOMM INC
Wireless Power Transmission
ActiveUS20120326660A1Batteries circuit arrangementsElectromagnetic wave systemElectricityElectric power transmission
A system for wireless power transmission may include one or more charging panels and one or more powered devices. The charging panel may include a pilot analysis circuitry, processor and power transmitter. The pilot analysis circuitry may be configured to analyze the magnitude and phase of a pilot signal from the powered device, based on which the processor may be configured to determine a complex conjugate of the pilot signal. And the power transmitter may be configured to cause radiation of a focused wireless power beam to the powered device in accordance with the complex conjugate of the pilot signal and via one or more antenna elements. The charging panel may be one of a plurality of spatially-distributed charging panels each of which includes respective antenna elements that may form an array of antenna elements configured to collaboratively radiate wireless power as a distributed, retro-reflective beamformer.
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST
Power transmission network
ActiveUS7844306B2Augment an internal batteryEliminate needBatteries circuit arrangementsInterconnection arrangementsElectric power transmissionWireless transmission
A network for power transmission to a receiver that converts the power into current includes a first node for transmitting power wirelessly in a first area. The first area has a minimum electric or magnetic field strength. The network includes a second node for transmitting power wirelessly in a second area. The second area has a minimum electric or magnetic field strength and overlaps the first area to define an overlap area. In another embodiment, the network includes a source in communication with the first and second nodes which provides power to them. Also disclosed are methods for power transmission to a receiver that converts the power into current.
Owner:POWERCAST
Wireless energy transfer systems
ActiveUS20100109445A1Efficient deliveryEfficient energy transferMultiple-port networksNear-field transmissionEnergy transferCondensed matter physics
Described herein are improved capabilities for a source resonator having a Q-factor Q1>100 and a characteristic size x1 coupled to an energy source, and a second resonator having a Q-factor Q2>100 and a characteristic size x2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.
Owner:WITRICITY CORP
Wireless power charging timing and charging control
ActiveUS20100213895A1Control moreReduce energy costsElectromagnetic wave systemMobile unit charging stationsEnergy rateTime schedule
Exemplary embodiments are directed to timing and control of wireless power transfer. A wireless power charging device includes at least one transmitter and a processor in communication with the at least one transmitter. The transmitter is configured for transmitting wireless power to one or more electronic devices, and the processor is configured to deactivate the transmitter during a pre-determined time interval. The charging device may include charging modes that a user may select between from an interface of the charging device. Charging modes may be related to times of operation such as those based on a user schedule, based on energy rates, or with modes programmed by a user. A charging schedule may be created by a user through the interface of the charging device or from an external device in communication with the charging device.
Owner:QUALCOMM INC
Power Transmission Device, Power Transmission Method, Program, Power Receiving Device and Power Transfer System
ActiveUS20090281678A1Improve user convenienceMechanical power/torque controlElectromagnetic wave systemTransmitted powerTransfer system
There is provided a power transmission device including a communication part that performs communication with an external power transmission device that transmits power, a power transmission part that transmits power to a power receiving device that receives the transmitted power in a non-contact manner, a determination part that determines whether power can be transmitted, based on external power transmission information received by the communication part indicating a start of power transmission by the external power transmission device, and a power transmission control part that controls the power transmission part to selectively transmit power based on a determination result from the determination part.
Owner:SONY CORP
Wireless power transfer within a circuit breaker
InactiveUS20120091820A1Efficient deliveryEfficient energy transferMultiple-port networksCharging stationsElectric forceTransmitted power
A wireless power service panel source includes power and control circuitry that receives power from a wired power connection at a position in a service panel, and generates an electronic drive signal at a frequency, f, and a source magnetic resonator configured to generate an oscillating magnetic field in response to the electronic drive signal, wherein the source magnetic resonator is configured to wirelessly transmit power to sensors in other positions within the service panel.
Owner:WITRICITY CORP
Tunable wireless energy transfer for in-vehicle applications
ActiveUS20120112532A1Efficient deliveryEfficient energy transferMultiple-port networksCharging stationsEnergy transferIn vehicle
A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes a load associated with an electrically powered system that is disposed interior to a vehicle, and a second electromagnetic resonator configured to be coupled to the load and moveable relative to the first electromagnetic resonator, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator; and wherein the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load.
Owner:WITRICITY CORP
Multi-resonator wireless energy transfer to mobile devices
InactiveUS20120248886A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferEngineering
A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply and a second electromagnetic resonator coupled to at least one of a power supply and the first electromagnetic resonator. The mobile wireless receiver includes a load associated with a mobile device such that the load delivers electrical energy to the mobile device, and a third electromagnetic resonator configured to be coupled to the load and movable relative to at least one of the first electromagnetic resonator and the second electromagnetic resonator, wherein the third resonator is configured to be wirelessly coupled to at least one of the first electromagnetic resonator and the second electromagnetic resonator to provide resonant, non-radiative wireless power to the third electromagnetic resonator from at least one of the first electromagnetic resonator and the second electromagnetic resonator.
Owner:WITRICITY CORP
System, method and apparatus for contact-less battery charging with dynamic control
InactiveUS6844702B2Reduce complexityImprove efficiencyNear-field transmissionElectromagnetic wave systemBattery chargeEngineering
A system, method and apparatus for contact-less charging of battery operated devices, including a host charger with a power converter and resonant tank circuit and a portable device where the battery is located, with a battery charging control IC, wherein the method obviates the need for a voltage controller in each of both the host and the portable stages. The charging of the battery in the portable device is controlled by a charging controller therein, which is in continual electric communication with the host, whose output power the control IC dynamically monitors and controls. In one embodiment, component count is minimized but battery charging is not optimized when the battery voltage is very low. In the other embodiment, charging efficiency is maximized regardless of the output voltage of the battery.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Wireless energy transfer with variable size resonators for medical applications
ActiveUS20120235634A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferInductor
A medical device-powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver includes a load configured to power an implantable medical device using electrical power, and a second electromagnetic resonator adapted to be housed within the medical device and configured to be coupled to the load, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, the area circumscribed by the inductive element of at least one of the electromagnetic resonators can be varied to improve performance.
Owner:WITRICITY CORP
Power Transmitting Apparatus, Power Transmission Method, Program, and Power Transmission System
ActiveUS20090271048A1Good transmission powerImprove powerMechanical power/torque controlNear-field transmissionElectric power transmissionCommunication unit
There is provided a power transmitting apparatus including a power transmission side communication unit for communicating with one or more power receiving apparatus for receiving transmitted power; a power transmission unit for transmitting power to the one or more power receiving apparatus in a non-contact manner; an allocating unit for dividing transmission of power from the power transmission unit to the power receiving apparatus to a plurality of dividing periods for every predetermined period, and allocating the one or more power receiving apparatus to one of the dividing periods; and a power transmission control unit for selectively transmitting power to the one or more power receiving apparatus for every dividing period based on the allocation result in the allocating unit.
Owner:SONY CORP
Wireless non-radiative energy transfer
ActiveUS20090195333A1Near-field transmissionElectromagnetic wave systemEnergy transferSoftware engineering
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
Wireless energy transfer and continuous radio station signal coexistence
ActiveUS20120153894A1Avoid interferenceLower emission levelsNear-field transmissionBatteries circuit arrangementsEnergy transferTransmitted power
This disclosure provides systems, methods and apparatus for wirelessly transmitting power while avoiding interference with wireless communication devices. In one aspect a wireless power transmitter apparatus is provided. The wireless power transmitter apparatus includes a transmit circuit configured to wirelessly transmit power at a transmit frequency to a first receiver device. The wireless power transmitter apparatus further includes a controller circuit configured to reduce a level of emission of the transmit circuit at a determined frequency during a period of time based on information about an information signal transmitted to a second receiver device substantially at the determined frequency to be received within the period of time.
Owner:WITRICITY CORP
Wireless power infrastructure
ActiveUS20100256831A1Mechanical power/torque controlLevel controlElectric power transmissionElectricity infrastructure
A wireless power infrastructure for delivering wireless power from a wireless network to mobile devices. The infrastructure includes a plurality of power transmission hubs, each hub having: a first capacitor for transmitting a signature frequency for a defined range; and a set of second capacitors, each for transmitting resonant wireless power within the defined range at a selectable frequency. A mobile device for obtaining wireless resonant the plurality of power transmission hubs is also described, and includes: a first variable capacitor for detecting a signature frequency associated with a proximately located power transmission hub; a second variable capacitor for receiving wireless resonant capacitor from the proximately located power transmission hub; and a synchronization system for setting the second variable capacitor to a frequency that is synchronized with a wireless resonant power transmission of the proximately located power transmission hub.
Owner:IBM CORP
Non-contact power transmission device
An electromagnetic resonance non-contact power transmission device includes a transmitter including a transmitter resonance element having a mechanism for discretely or continuously varying a resonant frequency, a transmitter excitation element coupled to the transmitter resonance element by electromagnetic induction, and an alternating current source for applying an alternating current at the same frequency as the resonant frequency to the transmitter excitation element, and a plurality of receivers each including a receiver resonance element having a specific resonant frequency, a receiver excitation element coupled to the receiver resonance element by electromagnetic induction, and an output circuit for outputting an electric current induced by the receiver excitation element. Electric power is transmitted selectively from the transmitter to any of the receivers having different specific resonant frequencies by changing the resonant frequency of the transmitter.
Owner:SONY CORP
Tunable wireless power architectures
ActiveUS20130033118A1Tune performanceCharging stationsElectromagnetic wave systemEnergy transferPower Architecture
Described herein are improved configurations for a wireless power transfer. The parameters of components of the wireless energy transfer system are adjusted to control the power delivered to the load at the device. The power output of the source amplifier is controlled to maintain a substantially 50% duty cycle at the rectifier of the device.
Owner:WITRICITY CORP
Wireless power transfer apparatus and method thereof
ActiveUS20120080957A1Near-field transmissionElectromagnetic wave systemElectric power transmissionElectric power
Owner:INTEL CORP
Wireless energy transfer with resonator arrays for medical applications
InactiveUS20120248888A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferEngineering
A medical device-powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes, a load configured to power an implantable medical device using electrical power, and a second electromagnetic resonator adapted to be housed within the medical device and configured to be coupled to the load, at least one other electromagnetic resonator configured with the first electromagnetic resonator and the second electromagnetic resonator in an array of electromagnetic resonators to distribute power over an area, and wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator.
Owner:WITRICITY CORP
Apparatus for energizing a remote station and related method
InactiveUS6289237B1Eliminate needTelemetry/telecontrol selection arrangementsElectromagnetic wave systemStored energyMicroprocessor controller
Apparatus for remote interaction with an object of interest includes a remote station for obtaining information from the object of interest, a base station for transmitting energy in space to and communicating with the remote station and the remote station having a conversion device for energizing the remote station responsive to receipt of the transmitted energy. The energy may be of any suitable type including RF power, light, acoustic, magnetic energy or other form of space transmitted or "radiant" energy. The remote station does not have to contain a source of stored energy or a wired connection to a source of energy. The remote station receives the energy transmission and data transmission from the base station and transmits data to the base station. Microprocessor controllers may be provided for the base station and the remote station. The remote station may receive information from sensors and through one or more transponders sequentially communicate information to the base station. An associated method is provided.
Owner:UNIVERSITY OF PITTSBURGH +1
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
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