Method of operating near field communication (NFC) device and NFC device
First Claim
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1. A method of operating a near field communication (NFC) device, the method comprising:
- receiving, by the NFC device, a first signal from an NFC reader;
transmitting, by the NFC device, a response to the first signal to the NFC reader; and
changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on the NFC device determining whether the NFC reader recognizes the response,wherein the NFC device increases a bandwidth of the NFC device during the signal transmission interval by changing the RF configuration parameter, when the NFC reader does not recognize the response.
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Abstract
A method of operating a near field communication (NFC) device includes receiving, by the NFC device, a first signal from an NFC reader, transmitting, by the NFC device, a response to the first signal to the NFC reader and changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on determining whether the NFC reader recognizes the response.
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Citations
16 Claims
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1. A method of operating a near field communication (NFC) device, the method comprising:
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receiving, by the NFC device, a first signal from an NFC reader; transmitting, by the NFC device, a response to the first signal to the NFC reader; and changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on the NFC device determining whether the NFC reader recognizes the response, wherein the NFC device increases a bandwidth of the NFC device during the signal transmission interval by changing the RF configuration parameter, when the NFC reader does not recognize the response. - View Dependent Claims (2)
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3. A method of operating a near field communication (NFC) device, the method comprising:
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receiving, by the NFC device, a first signal from an NFC reader; transmitting, by the NFC device, a response to the first signal to the NFC reader; and changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on the NFC device determining whether the NFC reader recognizes the response, wherein said determining whether the NFC reader recognizes the response comprises determining whether an intensity of an electromagnetic wave which the NFC device receives from the NFC reader is maintained prior to elapsing of a reference time that starts when the NFC device transmits the response, wherein the NFC device changes the RF configuration parameter during the signal transmission interval upon determination that the intensity is maintained when the reference time elapses. - View Dependent Claims (4, 5)
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6. A method of operating a near field communication (NFC) device, the method comprising:
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receiving, by the NFC device, a first signal from an NFC reader; transmitting, by the NFC device, a response to the first signal to the NFC reader; and changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on the NFC device determining whether the NFC reader recognizes the response, wherein said determining whether the NFC reader recognizes the response comprises receiving, by the NFC device, a second signal from the NFC reader, and determining, by the NFC device, whether the first signal is the same as the second signal, wherein the NFC device changes the RF configuration parameter during the signal transmission interval upon determination that the first signal is the same as the second signal. - View Dependent Claims (7, 8)
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9. A method of operating a near field communication (NFC) device, the method comprising:
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receiving, by the NFC device, an input message from an NFC reader; changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with a signal reception operation during a signal reception interval, based on the NFC device determining whether the signal reception operation is regularly performed; and transmitting, by the NFC device, a response to the input message to the NFC reader using the changed RF configuration parameter. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification