Near field communication (NFC) security apparatus and method
First Claim
1. A Near Field Communication (NFC) security apparatus to protect a signal transmitted between communication devices, the NFC security apparatus comprising:
- a sensing unit configured to detect the presence of a neighboring device other than the communication devices, based on a change in a near field shared by the communication devices; and
a control unit configured to control, in response to the presence of the neighboring device being detected, an amount of energy transmitted by the communication devices such that the neighboring device is prevented, based on energy received by the neighboring device from the communication devices, from accurately receiving the signal.
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Abstract
A method and apparatus for security of communication devices that communicate with each other in a near field are provided. A Near Field Communication (NFC) security apparatus may detect the presence of a neighboring device other than communication devices, based on a change in a near field. In response to detecting the presence of the neighboring device, the NFC security apparatus may control an amount of energy transmitted by the communication devices such that the neighboring device may be prevented from accurately receiving a signal transmitted between the communication devices.
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Citations
20 Claims
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1. A Near Field Communication (NFC) security apparatus to protect a signal transmitted between communication devices, the NFC security apparatus comprising:
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a sensing unit configured to detect the presence of a neighboring device other than the communication devices, based on a change in a near field shared by the communication devices; and a control unit configured to control, in response to the presence of the neighboring device being detected, an amount of energy transmitted by the communication devices such that the neighboring device is prevented, based on energy received by the neighboring device from the communication devices, from accurately receiving the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A Near Field Communication (NFC) security apparatus, comprising:
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a sensing unit configured to detect the presence of a neighboring device within a near field, based on a change in the near field, wherein the near field is formed between a source resonator and a target resonator that resonate with each other, and wherein the neighboring device is a device other than the source resonator and the target resonator; and a control unit configured to control, in response to detecting the presence of the neighboring device with the near field, an amount of energy transmitted by the source resonator or the target resonator such that the neighboring device is prevented, based on energy received by the neighboring device from the source resonator or the target resonator, from decrypting a signal transmitted and/or received between the source resonator and the target resonator. - View Dependent Claims (10, 11, 12)
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13. A Near Field Communication (NFC) security method to protect a signal transmitted between communication devices, the NFC security method comprising:
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detecting the presence of a neighboring device other than the communication devices, based on a change in a near field shared by the communication devices; and controlling, in response to the presence of the neighboring device being detected, an amount of energy transmitted by the communication devices such that the neighboring device is prevented, based on energy received by the neighboring device from the communication devices, from accurately receiving the signal. - View Dependent Claims (14, 15, 16, 17)
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18. A near field communication (NFC) receiver, comprising:
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a receiving unit configured to receive a signal transmitted from a transmitter that is included in a NFC communication network; a sensing unit configured to detect the presence of a neighboring device within the NFC communication network, wherein the neighboring device is a device other than the transmitter; and a transmitting unit configured to transmit an additional signal to prevent the detected neighboring device from accurately receiving the signal transmitted by the transmitter in the NFC network. - View Dependent Claims (19, 20)
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Specification