Wireless power transmission with selective range
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/02
H02J-017/00
H04B-005/00
출원번호
US-0926020
(2013-06-25)
등록번호
US-9124125
(2015-09-01)
발명자
/ 주소
Leabman, Michael A.
Brewer, Gregory Scott
출원인 / 주소
Energous Corporation
대리인 / 주소
Sophir, Eric L.
인용정보
피인용 횟수 :
167인용 특허 :
39
초록▼
The present disclosure describes a methodology for wireless power transmission based on pocket-forming. This methodology may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power. The tran
The present disclosure describes a methodology for wireless power transmission based on pocket-forming. This methodology may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power. The transmitter may identify and locate the device to which the receiver is connected and thereafter aim pockets of energy to the device in order to power it. Pockets of energy may be generated through constructive and destructive interferences, which may create null-spaces and spots of pockets of energy ranged into one or more radii from transmitter. Such feature may enable wireless power transmission through a selective range, which may limit operation area of electronic devices and/or may avoid formation of pockets of energy near and/or over certain areas, objects and people.
대표청구항▼
1. A method for wireless power transmission with selective range to power a portable electronic device, comprising: generating pocket-forming RF waves from a transmitter through an antenna connected to the transmitter;accumulating pockets of energy in regions of space in the form of constructive int
1. A method for wireless power transmission with selective range to power a portable electronic device, comprising: generating pocket-forming RF waves from a transmitter through an antenna connected to the transmitter;accumulating pockets of energy in regions of space in the form of constructive interference patterns of the generated RF waves;employing a selective range for charging or powering the electronic device in a predetermined variety of spots with the accumulated pockets of energy surrounded by null-spaces without accumulated pockets of energy; andimplementing an adaptive power focusing to avoid obstacles interfering with the RF signals between the receiver and the transmitter for regulating two or more receivers providing charging or powering of the portable electronic device. 2. The method for wireless power transmission with selective range to power the portable electronic device of claim 1, further including the method of intercepting the accumulated pockets of energy in regions of space by a receiver with a RF antenna connected to the portable electronic device. 3. The method for wireless power transmission with selective range to power the portable electronic device of claim 2, further including the method of rectifying the RF waves in the accumulated pockets of energy and converting the rectified RF waves into a constant DC voltage for charging or powering the portable electronic device. 4. A method for wireless power transmission with selective range to power a portable electronic device, comprising: generating pocket-forming RF waves from a transmitter through an antenna connected to the transmitter;accumulating pockets of energy in regions of space in the form of constructive interference patterns of the generated RF waves; andemploying a selective range for charging or powering the electronic device in a predetermined variety of spots with the accumulated pockets of energy surrounded by null-spaces without accumulated pockets of energy,wherein the null-spaces are generated in the form of destructive interference patterns of the generated RF waves and the null-spaces are distributed in predetermined selective zones around the variety of spots. 5. A method for wireless power transmission with selective range to power a portable electronic device, comprising: generating pocket-forming RF waves from a transmitter through an antenna connected to the transmitter;accumulating pockets of energy in regions of space in the form of constructive interference patterns of the generated RF waves; andemploying a selective range for charging or powering the electronic device in a predetermined variety of spots with the accumulated pockets of energy surrounded by null-spaces without accumulated pockets of energy,wherein the employing the selective range increases control over electronic devices to receive charging by limiting the operation area of certain portable electronic devices to eliminate pockets of energy in sensitive areas including people or other equipment affected by pockets of energy. 6. The system for wireless power transmission with selective range to power the portable electronic device of claim 5, wherein the transmitter provides pocket-forming for a plurality of receivers including one or more wireless charging radii surrounded by one or more radii of null-space to create spots enabling restrictions for powering and charging electronic devices. 7. A system for wireless power transmission with selective range to power a portable electronic device, comprising: a transmitter for generating pocket-forming at least two RF waves through an antenna connected to the transmitter;a micro-controller within the transmitter for controlling the pocket-forming the at least two RF waves to accumulate pockets of energy in regions of space in the form of constructive interference patterns of the generated RF waves; anda selective range for charging or powering the electronic device in a predetermined variety of spots in regions of space with the accumulated pockets of energy surrounded by null-spaces without accumulated pockets of energy,wherein the micro-controller changes a phase on one or more RF waves in pocket-forming with constructive and destructive interference patterns resulting in a unified waveform in the predetermined variety of spots for charging the electronic device. 8. The system for wireless power transmission with selective range to power the portable electronic device of claim 7, wherein the unified waveform defines pockets of energy and null-spaces along pocket-forming whereby the pockets of energy are available in certain predetermined regions of space where constructive interference exists defining one or more hot spots for charging the electronic devices over a minimum or maximum selected range responsive to a program within the micro-controller. 9. The system for wireless power transmission with selective range to power the portable electronic device of claim 7, wherein the unified waveform is comprised of at least two RF waves with slightly different frequencies with phase shifting on one or both frequencies to form a wireless power range from a few centimeters to over hundreds of meters. 10. A system for wireless power transmission with selective range to power a portable electronic device, comprising: a transmitter for generating at least two RF waves and short RF control signals having at least two RF antennas to transmit at least two RF waves through the antennas converging in 3-d space to accumulate as pockets of energy in the form of constructive interference patterns of RF waves;a micro-controller within the transmitter for controlling constructive interference patterns of the RF waves to accumulate pockets of energy in predetermined areas or regions in 3-D space and for controlling the destructive interference patterns of the RF waves to form null-spaces surrounding the pockets of energy,wherein the constructive interference patterns of RF waves form charging hot spots of a predetermined selected range for charging portable electronic devices and wherein the destructive interference patterns of RF waves form null spots of a predetermined selected range surrounding the charging spots without charging energy therein, andwherein the hot spots include one or more wireless charging radii and one or more null-space radii whereby the hot spots are created for enabling restrictions for powering and charging the electronic device. 11. The system for wireless power transmission with selective range to power the portable electronic device of claim 10, wherein the antennas operate in frequency bands of generally 900 MHz, 2.4 GHz or 5.7 GHz bands. 12. The system for wireless power transmission with selective range to power the portable electronic device of claim 10, wherein selected range of charging spots provide safety restrictions to eliminate pockets of energy over areas or zones where energy is avoided to protect sensitive equipment or people within predetermined designated regions in 3-d space. 13. A system for wireless power transmission with selective range to power a portable electronic device, comprising: a transmitter for generating at least two RF waves and short RF control signals having at least two RF antennas to transmit at least two RF waves through the antennas converging in 3-d space to accumulate as pockets of energy in the form of constructive interference patterns of RF waves;a micro-controller within the transmitter for controlling constructive interference patterns of the RF waves to accumulate pockets of energy in predetermined areas or regions in 3-D space and for controlling the destructive interference patterns of the RF waves to form null-spaces surrounding the pockets of energy,wherein the constructive interference patterns of RF waves form charging hot spots of a predetermined selected range for charging portable electronic devices and wherein the destructive interference patterns of RF waves form null spots of a predetermined selected range surrounding the charging spots without charging energy therein, andfurther including a receiver connected to the portable electronic device having a micro-controller to communicate with the transmitter micro-controller to generate wireless charging spots over a plurality of receivers regardless of the obstacles surrounding the receivers for the predetermined selected range from the transmitter. 14. The system for wireless power transmission with selective range to power the portable electronic device of claim 13, wherein the micro-controllers for the transmitter and receiver locate, track or direct the pockets of energy over preselected range of hot spots by enabling a plurality of standard wireless communication protocols of Bluetooth, Wi-Fi, FM or Zigbee. 15. The system for wireless power transmission with selective range to a portable electronic device of claim 13, wherein the micro-controllers of the transmitter and receiver are dynamically adjusting pocket-forming over preselected ranges to regulate power on one or more targeted receivers. 16. The system for wireless power transmission with selective range to power the portable electronic device of claim 13, wherein the receiver and transmitter micro-controllers communicate to change frequencies and phase on one or more RF waves to form an unified waveform that describes pockets of energy and mill-spaces along pocket-forming wherein pockets of energy are available in certain predetermined areas where a constructive interference of the waves exist and such areas include one or more spots which move along pocket-forming trajectory and contained within the wireless power range that include either a minimum or maximum range of wireless power transmission. 17. The system for wireless power transmission with selective range to power the portable electronic device of claim 13, wherein the electronic devices are various electronic equipment, smartphones, tablets, music players, computers, toys and others powered at the same time over selected ranges and restricted locations for each electronic device. 18. A system for wireless power transmission with selective range to power a portable electronic device, comprising: a transmitter for generating at least two RF waves and short RF control signals having at least two RF antennas to transmit at least two RF waves through the antennas converging in 3-d space to accumulate as pockets of energy in the form of constructive interference patterns of RF waves;a micro-controller within the transmitter for controlling constructive interference patterns of the RF waves to accumulate pockets of energy in predetermined areas or regions in 3-D space and for controlling the destructive interference patterns of the RF waves to form null-spaces surrounding the pockets of energy,wherein the constructive interference patterns of RF waves form charging hot spots of a predetermined selected range for charging portable electronic devices and wherein the destructive interference patterns of RF waves form null spots of a predetermined selected range surrounding the charging spots without charging energy therein, andwherein the antennas operate in predetermined frequencies at generally 900 MHz, 2.4 GHz, 5.7 GHz to transmit at least two RF waveforms to create a unified waveform for a preselected range for charging hot spots and null-space spots.
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이 특허에 인용된 특허 (39)
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Bell, Douglas; Leabman, Michael A., Method for automatically testing the operational status of a wireless power receiver in a wireless power transmission system.
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Hosseini, Alister; Leabman, Michael A., Near-field RF charging pad with adaptive loading to efficiently charge an electronic device at any position on the pad.
Hosseini, Alister; Leabman, Michael A., Near-field RF charging pad with multi-band antenna element with adaptive loading to efficiently charge an electronic device at any position on the pad.
Bell, Douglas; Leabman, Michael A., System and method to control a wireless power transmission system by configuration of wireless power transmission control parameters.
Leabman, Michael A.; Brewer, Gregory Scott, System and methods for pocket-forming based on constructive and destructive interferences to power one or more wireless power receivers using a wireless power transmitter including a plurality of antennas.
Bell, Douglas; Leabman, Michael A., System and methods for using a remote server to authorize a receiving device that has requested wireless power and to determine whether another receiving device should request wireless power in a wireless power transmission system.
Leabman, Michael A.; Brewer, Gregory Scott, System and methods for wireless power transmission to an electronic device in accordance with user-defined restrictions.
Bell, Douglas, Systems and methods for a configuration web service to provide configuration of a wireless power transmitter within a wireless power transmission system.
Bell, Douglas; Leabman, Michael A., Systems and methods for a configuration web service to provide configuration of a wireless power transmitter within a wireless power transmission system.
Bell, Douglas; Leabman, Michael A., Systems and methods for assigning a power receiver to individual power transmitters based on location of the power receiver.
Bell, Douglas; Leabman, Michael A., Systems and methods for assigning a set of antennas of a wireless power transmitter to a wireless power receiver based on a location of the wireless power receiver.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for assigning groups of antenas of a wireless power transmitter to different wireless power receivers, and determining effective phases to use for wirelessly transmitting power using the assigned groups of antennas.
Bell, Douglas; Leabman, Michael A., Systems and methods for assigning groups of antennas to transmit wireless power to different wireless power receivers.
Bell, Douglas; Leabman, Michael A., Systems and methods for configuring operational conditions for a plurality of wireless power transmitters at a system configuration interface.
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Leabman, Michael A., Systems and methods for determining optimal charging positions to maximize efficiency of power received from wirelessly delivered sound wave energy.
Leabman, Michael A., Systems and methods for generating and transmitting wireless power transmission waves using antennas having a spacing that is selected by the transmitter.
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Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for using a predetermined number of communication channels of a wireless power transmitter to communicate with different wireless power receivers.
Bell, Douglas; Leabman, Michael, Systems and methods for using a transmitter access policy at a network service to determine whether to provide power to wireless power receivers in a wireless power network.
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Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for wireless power transmission by comparing voltage levels associated with power waves transmitted by antennas of a plurality of antennas of a transmitter to determine appropriate phase adjustments for the power waves.
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