IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0860963
(2015-09-22)
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등록번호 |
US-10033222
(2018-07-24)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Morgan, Lewis & Bockius LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
195 |
초록
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Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with a
Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.
대표청구항
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1. A method for wireless power transmission, the method comprising: determining, by a transmitter, one or more transmission parameters for transmitting chirp power waves to a wireless power receiver located within a transmission field of the transmitter, the one or more transmission parameters based
1. A method for wireless power transmission, the method comprising: determining, by a transmitter, one or more transmission parameters for transmitting chirp power waves to a wireless power receiver located within a transmission field of the transmitter, the one or more transmission parameters based upon mapping data and sensor data, wherein: the mapping data and sensor data indicates respective locations of one or more objects and receivers within the transmission field of the transmitter, andthe transmitter comprises a first set of antennas and a second set of antennas;determining, by the transmitter, first characteristics to use for generating a first waveform and second characteristics to use for generating a second waveform, the first and second characteristics corresponding to the one or more transmission parameters, wherein the first and second characteristics include characteristics selected from a group consisting of an amplitude and a frequency;generating, by a waveform generator of the transmitter: the first waveform having the first characteristics, and the second waveform having the second characteristics;transmitting, by the first set of antennas of the transmitter and to the wireless power receiver, first chirp power waves using the generated first waveform;transmitting, by the second set of antennas of the transmitter and to the wireless power receiver, second chirp power waves using the generated second waveform; andadjusting, by the waveform generator of the transmitter, the first and second waveforms based on one or more updates to the one or more transmission parameters. 2. The method according to claim 1, wherein the first and second chirp power waves form a pocket of energy capable of being harvested by the wireless power receiver coupled to an electronic device. 3. The method according to claim 1, further comprising selecting, by the transmitter, respective output frequencies of the first and second chirp power waves based on the one or more transmission parameters. 4. The method according to claim 1, further comprising increasing, by the transmitter, based on the one or more transmission parameters, frequency and amplitude of at least one of the transmitted first and second chirp waves in relation to change in power wave transmission time and distance between the transmitter and the wireless power receiver. 5. The method according to claim 1, further comprising decreasing, by the transmitter, based on the one or more transmission parameters, frequency and amplitude of at least one of the transmitted first and second chirp power waves in relation to change in power wave transmission time and distance between the transmitter and the wireless power receiver. 6. The method according to claim 1, wherein the one or more transmission parameters comprises heat mapping data, external sensor data, and transmitter sensor data. 7. The method according to claim 1, wherein the first and second waveforms are generated as non-linear chirp waveforms, and wherein the non-linear chirp waveforms are selected from the group consisting of exponential, logarithmic, and arbitrarily formulated chirp waveform. 8. The method according to claim 1, wherein the first and second chirp power waves are co-related, and wherein the calculation of the co-relation comprises normalization of average levels, amplitudes, and intensities of the one or more power waves. 9. The method according to claim 1, wherein respective frequencies of the first and second chirp power waves transmitted by the transmitter are randomly changed between 1 to 1000 times per second. 10. The method according to claim 1, wherein the first and second chirp power waves are angled modulation waves, wherein the angled modulation waves are a combination of frequency modulation and amplitude modulation. 11. A system for wireless power transmission, the system comprising: one or more transmitters configured to: determine one or more transmission parameters for transmitting chirp power waves to a wireless power receiver located within a transmission field of the one or more transmitters, the one or more transmission parameters based on mapping data and sensor data, wherein: the mapping data and sensor data indicates respective locations of one or more objects and receivers within the transmission field of the one or more transmitters, anddetermine, first characteristics to use for generating a first waveform and second characteristics to use for generating a second waveform, the first and second characteristics corresponding to the one or more transmission parameters, wherein the first and second characteristics include characteristics selected from a group consisting of an amplitude and a frequency;each of the one or more transmitters comprising: a waveform generator configured to (i) generate the first waveform having the first characteristics, and the second waveform having the second characteristics, and (ii) adjust, the first and second waveforms based on one or more updates to the one or more transmission parameters;a first set of antennas configured to transmit to the wireless power receiver, first chirp power waves using the generated first waveform; anda second set of antennas configured to transmit to the wireless power receiver, second chirp power waves using the generated second waveform. 12. The system according to claim 11, wherein the first and second chirp power waves have a fast changing frequency defined by a time-domain function. 13. The system according to claim 11, wherein a transmitter from the one or more transmitters selects respective output frequencies of the first and second chirp power waves based on the one or more transmission parameters. 14. The system according to claim 11, wherein a transmitter from the one or more transmitters varies respective frequencies of the first and second chirp power waves after transmitting the first and second chirp power waves based on the one or more transmission parameters. 15. The system according to claim 11, wherein respective frequencies and amplitudes of the first and second chirp power waves automatically change with increase in power wave transmission time and distance between at least one transmitter of the one or more transmitters and the wireless power receiver. 16. The system according to claim 11, wherein the first and second chirp power waves form a pocket of energy for providing power to an electronic device coupled to the wireless power receiver. 17. The system according to claim 11, wherein the first and second waveforms are segmented chirp waveforms. 18. The system according to claim 11, wherein the chirp power waveforms are divided into respective pluralities of sub-waveforms such that each respective sub-waveform of the respective pluralities of sub-waveforms has a different frequency and width. 19. The system according to claim 11, the first set and the second set of antennas are separated from each other. 20. The system according to claim 11, wherein respective frequencies of the first and second chirp power waves transmitted by the first set and the second set of antennas are varied based on maximum permissible exposure level (MPE) data associated with the one or more objects.
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