Wireless charging using passive NFC tag and multiple antenna of differing shapes
First Claim
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1. A method of charging a rechargeable battery of a receiver by a charging pad, said receiver having NFC functionality and being capable of being charged according to a predetermined battery charging standard, said method comprising:
- receiving, via Near Field Communication (NFC), information from said receiver at a passive NFC tag of said charging pad about said predetermined battery charging standard; and
in response to receiving said information at the passive NFC tag of the charging pad, causing said charging pad to charge the rechargeable battery of said receiver according to said predetermined battery charging standard;
wherein said charging pad has at least two charging coils, one of the at least two charging coils being configured to facilitate charging of a rechargeable battery according to a first battery charging standard and a different one of the at least two charging coils being configured to facilitate charging of a rechargeable battery according to a second battery charging standard, wherein the first battery charging standard is different from the second battery charging standard; and
wherein causing said charging pad to charge the rechargeable battery of said receiver according to said predetermined battery charging standard comprises choosing at least one of said at least two charging coils for charging the rechargeable battery of the receiver according to said predetermined battery charging standard.
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Abstract
A charging pad capable of charging a receiver according to a predetermined procedure is disclosed. The charging pad may have a plurality of charging coils and a controller for selecting an appropriate coil for charging the receiver. The receiver communicates with the charging pad via NFC, thereby indicating to the charging pad the appropriate procedure for charging the receiver. The controller then selects the appropriate coil and directs charging according to the appropriate procedure.
22 Citations
14 Claims
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1. A method of charging a rechargeable battery of a receiver by a charging pad, said receiver having NFC functionality and being capable of being charged according to a predetermined battery charging standard, said method comprising:
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receiving, via Near Field Communication (NFC), information from said receiver at a passive NFC tag of said charging pad about said predetermined battery charging standard; and in response to receiving said information at the passive NFC tag of the charging pad, causing said charging pad to charge the rechargeable battery of said receiver according to said predetermined battery charging standard; wherein said charging pad has at least two charging coils, one of the at least two charging coils being configured to facilitate charging of a rechargeable battery according to a first battery charging standard and a different one of the at least two charging coils being configured to facilitate charging of a rechargeable battery according to a second battery charging standard, wherein the first battery charging standard is different from the second battery charging standard; and wherein causing said charging pad to charge the rechargeable battery of said receiver according to said predetermined battery charging standard comprises choosing at least one of said at least two charging coils for charging the rechargeable battery of the receiver according to said predetermined battery charging standard. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A charging pad comprising:
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a passive NFC tag;
said passive NFC tag being capable of receiving information about a battery charging standard from a receiver;at least two charging coils, one of the at least two charging coils being configured to facilitate charging according to a first battery charging standard and a different one of the at least two charging coils being configured to facilitate charging according to a second battery charging standard, wherein the first battery charging standard is different from the second battery charging standard; a controller for receiving said information from said passive NFC tag and selecting at least one of said two charging coils for charging a rechargeable battery of said receiver in response to said information about a battery charging standard. - View Dependent Claims (8, 9)
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10. A method of charging a rechargeable battery of a receiver by a charging pad, said receiver having NFC functionality and being capable of being charged according to a predetermined battery charging standard, said method comprising:
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receiving, via Near Field Communication (NFC), a command from said receiver at a passive NFC tag of said charging pad, the command requesting charging according to the predetermined battery charging standard; in response to receiving said command at the passive NFC tag of the charging pad, turning on the charging pad and causing said charging pad to charge the rechargeable battery of said receiver according to said predetermined battery charging standard; wherein said charging pad has at least two charging coils, one of the at least two charging coils being configured to facilitate charging of a rechargeable battery according to a first battery charging standard and a different one of the at least two charging coils being configured to facilitate charging of a rechargeable battery according to a second battery charging standard, wherein the first battery charging standard is different from the second battery charging standard; and wherein causing said charging pad to charge the rechargeable battery of said receiver according to said predetermined battery charging standard comprises choosing at least one of said at least two charging coils for charging the rechargeable battery of the receiver according to said predetermined battery charging standard. - View Dependent Claims (11, 12, 13, 14)
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Specification