COORDINATING CONTACTLESS COMMUNICATION AND CHARGING FUNCTIONS
First Claim
1. An electronic device comprising:
- an antenna element;
a contactless integrated circuit (IC) card function unit configured to be connected to the antenna element and process a signal received at the antenna;
a clamp circuit included in the contactless IC card function unit, the clamp circuit configured to suppress excessive voltage of the signal received at the antenna;
a contactless charging function unit including a battery and configured to be connected to the antenna, and charge the battery by receiving an electromotive force induced at the antenna;
a switching module configured to eliminate or reduce the function of the clamp circuit; and
a control unit connected to the switching module and configured to determine whether the contactless IC card function unit is in use or the contactless charging function unit is in use and control the switching module based on the determination.
5 Assignments
0 Petitions
Accused Products
Abstract
An electronic device includes a contactless integrated circuit card function unit, a contactless charging function unit, and a switching unit. The contactless integrated circuit card function unit includes a clamp circuit and realizes a contactless integrated circuit card function. The clamp circuit suppresses excessive voltage of a signal received at an antenna whose operating frequency is a predetermined frequency. The contactless charging function unit commonly uses the antenna and realizes a contactless charging function. The switching unit invalidates or reduces the function of the clamp circuit when the contactless charging function unit is used.
24 Citations
20 Claims
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1. An electronic device comprising:
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an antenna element; a contactless integrated circuit (IC) card function unit configured to be connected to the antenna element and process a signal received at the antenna; a clamp circuit included in the contactless IC card function unit, the clamp circuit configured to suppress excessive voltage of the signal received at the antenna; a contactless charging function unit including a battery and configured to be connected to the antenna, and charge the battery by receiving an electromotive force induced at the antenna; a switching module configured to eliminate or reduce the function of the clamp circuit; and a control unit connected to the switching module and configured to determine whether the contactless IC card function unit is in use or the contactless charging function unit is in use and control the switching module based on the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method performed by an electronic device, the method comprising:
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processing a signal received at an antenna element of the electronic device at a contactless integrated circuit (IC) card function unit; suppressing excessive voltage of the signal received at the antenna at a clamp circuit included in the contactless IC card function unit; charging a battery of the electronic device by receiving an electromotive force induced at the antenna at a contactless charging function unit connected to the antenna and including the battery; switching a switching module to eliminate or reduce the function of the clamp circuit; and determining, at a control unit of the electronic device, whether the contactless IC card function unit is in use or the contactless charging function unit is in use and controlling the switching module based on the determination. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An electronic device comprising:
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means for receiving a signal; means for processing the received signal; means for suppressing excessive voltage of the received signal; means for charging a battery of the electronic device by receiving an electromotive force induced at the means for receiving a signal; means for eliminating or reducing the function of the means for suppressing; and means for determining whether the means for processing or means for charging is in use and controlling the means for eliminating or reducing based on the determination.
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Specification