Method of operating near field communication (NFC) device and NFC device
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-Pil Cho, Il-Jong Song, Byeong-Hoon Lee
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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.
Claims16
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.
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 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.
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 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.
A method of operating a near field communication (NFC) device, the method comprising:
- 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.
Dependencies are inferred from the claim text.