Near field communication (NFC) enabled peripheral device
First Claim
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1. A communication system, comprising:
- a peripheral device configured to select a selectable impedance from among a plurality of selectable impedances to communicate peripheral device information corresponding to the selectable impedance; and
a communication device configured to;
assign corresponding potential intensities from among a plurality of potential intensities of a generated magnetic field to corresponding selectable impedances from among a plurality of potential selectable impedances,assign the corresponding selectable impedances to corresponding potential peripheral device information from among a plurality of potential peripheral device information,determine an intensity of the generated magnetic field,select a potential intensity from among the plurality of potential intensities which most suitably matches the intensity of the generated magnetic field,select a potential peripheral device information from among the plurality of potential peripheral device information that corresponds to the potential intensity to determine the peripheral device information.
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Abstract
A communication system of the present disclosure includes a communication device that is communicatively coupled to a peripheral device. The peripheral device selects a selectable impedance from among multiple selectable impedances to communicate peripheral device information to the communication device. The communication device operates in an acquisition mode of operation to determine the selectable impedance to recover the peripheral device information. Optionally, the communication device can transition to a response mode of operation to respond to the peripheral device information.
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Citations
15 Claims
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1. A communication system, comprising:
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a peripheral device configured to select a selectable impedance from among a plurality of selectable impedances to communicate peripheral device information corresponding to the selectable impedance; and a communication device configured to; assign corresponding potential intensities from among a plurality of potential intensities of a generated magnetic field to corresponding selectable impedances from among a plurality of potential selectable impedances, assign the corresponding selectable impedances to corresponding potential peripheral device information from among a plurality of potential peripheral device information, determine an intensity of the generated magnetic field, select a potential intensity from among the plurality of potential intensities which most suitably matches the intensity of the generated magnetic field, select a potential peripheral device information from among the plurality of potential peripheral device information that corresponds to the potential intensity to determine the peripheral device information. - View Dependent Claims (2, 3, 4)
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5. A communication system, comprising:
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a peripheral device configured to select a selectable impedance from among a plurality of selectable impedances to communicate peripheral device information corresponding to the selectable impedance; and a communication device configured to; provide a series of time-varying magnetic pulses to the peripheral device, determine a signal metric of a time-varying magnetic pulse from among the series of time-varying magnetic pulses, assign corresponding potential signal metrics from among a plurality of potential signal metrics to corresponding selectable impedances from among a plurality of potential selectable impedances, assign the corresponding selectable impedances to corresponding peripheral device information from among a plurality of potential peripheral device information, select a potential signal metric from among the plurality of potential signal metrics which most suitably matches the signal metric of the time-varying magnetic pulse to detect the selectable impedance, and select a potential peripheral device information from among the plurality of potential peripheral device information that corresponds to the potential signal metric to determine the peripheral device information.
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6. A communication device communicatively coupled to a peripheral device, comprising:
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a near field communication (NFC) module configured to provide a series of time-varying magnetic pulses to the peripheral device; and a host processor configured to; determine a signal metric of a time-varying magnetic pulse from among the series of time-varying magnetic pulses, assign corresponding potential signal metrics from among a plurality of potential signal metrics to corresponding selectable impedances from among a plurality of potential selectable impedances, assign the corresponding selectable impedances to corresponding peripheral device information from among a plurality of potential peripheral device information, select a potential signal metric from among the plurality of potential signal metrics which most suitably matches the signal metric of the time-varying magnetic pulse to detect a selectable impedance that has been selected by the peripheral device, and select a potential peripheral device information from among the plurality of potential peripheral device information that corresponds to the potential intensity to determine peripheral device information that has been communicated by the peripheral device. - View Dependent Claims (7, 8, 9)
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10. A communication device communicatively coupled to a keyboard, comprising:
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a communication module configured to provide a series of time-varying magnetic pulses to the keyboard; and a host processor configured to; determine a signal metric of a time-varying magnetic pulse from among the series of time-varying magnetic pulses, assign corresponding potential signal metrics from among a plurality of potential signal metrics to corresponding selectable impedances from among a plurality of potential selectable impedances, assign the corresponding selectable impedances to corresponding peripheral device information from among a plurality of potential peripheral device information, the plurality of potential peripheral device information including one or more keystrokes of the keyboard, select a potential signal metric from among the plurality of potential signal metrics which most suitably matches the signal metric of the time-varying magnetic pulse to detect a selectable impedance that has been selected by the peripheral device, and select a potential peripheral device information from among the plurality of potential peripheral device information that corresponds to the potential intensity to determine peripheral device information that has been communicated by the peripheral device.
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11. A peripheral device communicatively coupled to a communication device, comprising:
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a host processor configured to; assign each selectable impedance from among a plurality of selectable impedances to a corresponding peripheral device information from among a plurality of peripheral device information, and select a corresponding selectable impedance from among the plurality of selectable impedances corresponding to a peripheral device information; and a communication module configured to adjust its impedance to be the selected selectable impedance to communicate the peripheral device information to the communication device, the communication module including; an impedance selection module including a plurality of capacitors and a plurality of switching elements, each of the plurality of switching elements being coupled between capacitors from among the plurality of capacitors; and an antenna coupled to the impedance selection module. - View Dependent Claims (12, 13, 14, 15)
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Specification