Wireless charging device
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides wireless charging techniques and devices for charging electronic device(s) within a closed space defined by a substantially hollow housing containing an antenna arrangement and configured to define an inner cavity for propagation of electromagnetic radiation from the antenna arrangement. The housing has an inner surface, encompassing the inner cavity, which geometry and material composition selected to define a general propagation path for the predetermined electromagnetic radiation from the antenna arrangement towards a charging zone. The inner cavity of the housing operates as a waveguide for directionally guiding the electromagnetic radiation to the charging zone and providing substantially maximal intensity of the electromagnetic radiation within the charging zone.
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Citations
46 Claims
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1-28. -28. (canceled)
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29. A charging device for wireless charging at least one electric device comprising:
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a housing comprising; a charging zone; and an antenna arrangement which comprises at least one radiating antenna, the antenna arrangement being operable to create a predetermined phase pattern of the radiation emitted by antennas to provide a substantially maximal intensity of electromagnetic radiation within at least a part of the charging zone; wherein; the housing is substantially hollow and defines an inner cavity for propagation of predetermined electromagnetic radiation from the antenna arrangement; the housing comprises an inner surface thereof configured to define the inner cavity, geometry and material composition of the inner surface and being selected to define a general propagation path for the predetermined electromagnetic radiation from the antenna arrangement towards the charging zone inside the housing such that the inner cavity operates as a waveguide for directionally guiding the predetermined electromagnetic radiation to the charging zone and enables creation of a volume of the substantially maximal intensity of the electromagnetic radiation within at least a part of the charging zone while substantially preventing the predetermined radiation from escaping the housing. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A charging device for wireless charging at least one electric device comprising:
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a housing comprising; a charging zone; and an antenna arrangement which comprises at least one radiating antenna, the antenna arrangement comprises antennas operable by a switching unit according to a predetermined time pattern to thereby provide a predetermined phase pattern of electromagnetic radiation emitted by the antennas to provide a substantially maximal electromagnetic intensity within at least a part the charging zone; wherein; the housing is substantially hollow and defines an inner cavity for propagation of predetermined electromagnetic radiation from the antenna arrangement; the housing comprises an inner surface thereof configured to define the inner cavity, geometry and material composition of the inner surface and being selected to define a general propagation path for the predetermined electromagnetic radiation from the antenna arrangement towards the charging zone inside the housing such that the inner cavity operates as a waveguide for directionally guiding the predetermined electromagnetic radiation to the charging zone and enables creation of a volume of the substantially maximal intensity of the electromagnetic radiation within at least a part of the charging zone while substantially preventing the predetermined radiation from escaping the housing.
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45. A charging device for wireless charging at least one electric device comprising:
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a housing comprising; a charging zone; and an antenna arrangement which comprises at least one radiating antenna, the antenna arrangement being associated with a frequency controller to thereby enable controllable variation of a frequency of the electromagnetic radiation emitted by the antenna arrangement to provide at least a partial overlap between a volume of a substantially maximal intensity of the electromagnetic radiation and at least a part of the charging zone; wherein; the housing is substantially hollow and defines an inner cavity for propagation of predetermined electromagnetic radiation from the antenna arrangement; the housing comprises an inner surface thereof configured to define the inner cavity, geometry and material composition of the inner surface and being selected to define a general propagation path for the predetermined electromagnetic radiation from the antenna arrangement towards the charging zone inside the housing such that the inner cavity operates as a waveguide for directionally guiding the predetermined electromagnetic radiation to the charging zone and enables creation of a volume of the substantially maximal intensity of the electromagnetic radiation within at least a part of the charging zone while substantially preventing the predetermined radiation from escaping the housing.
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46. A method for use in charging at least one electric device, the method comprising:
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providing a charging device comprising an antenna arrangement having a plurality of antennas and a charging zone; operating the antenna arrangement to generate electromagnetic radiation having frequency and phase selected to thereby create a volume of maximal intensity of the electromagnetic radiation within at least a part of the charging zone; monitoring the radiation in a vicinity of the charging zone; and in response to the monitoring, carrying out at least one of the following;
(1) providing a phase shift between antennas of the antenna arrangement;
(2) controllably varying a frequency of the radiation to provide an optimal frequency of the radiation in the charging zone;
(3) selectively deactivating at least one antenna of the antenna arrangement.
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Specification