METHOD AND APPARATUS FOR OPTIMALLY LOCATING A DEVICE TO BE CHARGED IN A CHARGING AREA OF A WIRELESS CHARGER
First Claim
1. A wireless charger, comprising:
- a wireless charging power signal generator;
at least one resonant charging coil coupled to the wireless charging power signal generator and which produces an electromagnetic charging field in a charging area of the wireless charger, the charging field having at least one minimum intensity position in the charging area; and
at least one indication of the at least one minimum intensity position in the charging area.
1 Assignment
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Accused Products
Abstract
A wireless charger facilitates positioning of a device or devices to be charged by the wireless charger in an optimum location relative to the wireless charger. Some embodiments use physical exclusion features to prevent placement of a device at minimum intensity positions in a charging field. Some embodiments use graphical indicia to indicate the relative charging field strength (or field strength indicators such as charge current, wattage etc.) at various positions so that the user can select an appropriate position. Some embodiments facilitate communication between the wireless charger and the device, where the wireless charger maintains a record of the devices being charged and their positions, in order to recommend a charging position.
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Citations
22 Claims
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1. A wireless charger, comprising:
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a wireless charging power signal generator; at least one resonant charging coil coupled to the wireless charging power signal generator and which produces an electromagnetic charging field in a charging area of the wireless charger, the charging field having at least one minimum intensity position in the charging area; and at least one indication of the at least one minimum intensity position in the charging area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for wireless charging of a battery in a portable device, comprising:
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detecting, at a wireless charger, the portable device; receiving, at the wireless charger from the portable device, charging requirements for the portable device; the wireless charger determining a charging location relative to a charging coil of the wireless charger based on the charging requirements; and the wireless charger indicating the determined charging location. - View Dependent Claims (15, 16, 17, 18)
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19. A wireless charging system, comprising:
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a wireless charger having at least one resonant charging coil that produces an electromagnetic charging field in a charging area of the wireless charger, the charging field having at least one minimum intensity position in the charging area, the wireless charger further having at least one physical indication of the at least one minimum intensity position in the charging area; and a portable device having a battery and a receiving coil that receives energy from the resonant charging coil to recharge the battery. - View Dependent Claims (20, 21, 22)
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Specification