Tuning a NFC antenna of a device
First Claim
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1. A near field communication (NFC) payment object reader that is portable and wireless, wherein the NFC payment object reader benefits from intermittent tuning, the NFC payment object reader comprising:
- an accelerometer;
an NFC subsystem including an NFC antenna; and
a tuning subsystem configured to tune the NFC antenna, the tuning subsystem configured to receive an input from the accelerometer and based on the input from the accelerometer, initiate one of a plurality of tuning processes depending on whether the NFC payment object reader is stationary or in motion, the plurality of tuning processes including;
a first tuning process that is initiated in response to the tuning subsystem determining based on the input from the accelerometer that the NFC payment object reader is stationary, wherein the first tuning process results in a first tolerance for deviation from a desired frequency of the NFC antenna, anda second tuning process that is initiated in response to the tuning subsystem determining based on the input from the accelerometer that the NFC payment object reader is in motion, wherein the second tuning process results in a second tolerance for deviation from the desired frequency of the NFC antenna that is different from the first tolerance for deviation from the desired frequency.
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Abstract
A NFC object reader'"'"'s NFC antenna system configured to dynamically change an element of the NFC antenna system to maintain the NFC antenna system'"'"'s antenna default resonant frequency. The NFC antenna system can be configured to include a tuning subsystem, integrated with sensors to trigger tuning of NFC antenna system'"'"'s antenna.
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Citations
19 Claims
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1. A near field communication (NFC) payment object reader that is portable and wireless, wherein the NFC payment object reader benefits from intermittent tuning, the NFC payment object reader comprising:
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an accelerometer; an NFC subsystem including an NFC antenna; and a tuning subsystem configured to tune the NFC antenna, the tuning subsystem configured to receive an input from the accelerometer and based on the input from the accelerometer, initiate one of a plurality of tuning processes depending on whether the NFC payment object reader is stationary or in motion, the plurality of tuning processes including; a first tuning process that is initiated in response to the tuning subsystem determining based on the input from the accelerometer that the NFC payment object reader is stationary, wherein the first tuning process results in a first tolerance for deviation from a desired frequency of the NFC antenna, and a second tuning process that is initiated in response to the tuning subsystem determining based on the input from the accelerometer that the NFC payment object reader is in motion, wherein the second tuning process results in a second tolerance for deviation from the desired frequency of the NFC antenna that is different from the first tolerance for deviation from the desired frequency. - View Dependent Claims (2, 3, 4)
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5. A near field communication (NFC) payment object reader comprising:
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an accelerometer; an NFC antenna subsystem including an NFC antenna; and a tuning subsystem configured to tune the NFC antenna subsystem, the tuning subsystem configured to receive an input from the accelerometer, the tuning subsystem configured to use different tuning processes depending on whether the NFC payment object reader is stationary or in motion, the different tuning processes including a first tuning process that is initiated in response to the tuning subsystem determining based on the input from the accelerometer that the NFC payment object reader is stationary, wherein the first tuning process corresponds to a first tolerance for deviation from a desired frequency of the NFC antenna, the different tuning processes including a second tuning process that is initiated in response to the tuning subsystem determining based on the input from the accelerometer that the NFC payment object reader is in motion, wherein the second tuning process corresponds to a second tolerance for deviation from the desired frequency of the NFC antenna, wherein the second tolerance for deviation from the desired frequency is different from the first tolerance for deviation from the desired frequency. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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receiving an accelerometer output of an accelerometer of a payment object reader into a tuning algorithm that controls tuning of a near field communication (NFC) antenna of the payment object reader; determining whether the payment object reader is in motion based on the accelerometer output; and adjusting the tuning algorithm to use one of a plurality of tuning processes depending on whether the NFC payment object reader is stationary or in motion, wherein the plurality of tuning processes include a first tuning process that is initiated in response to determining based on the accelerometer output from the accelerometer that the NFC payment object reader is stationary, wherein the first tuning process corresponds to a first tolerance for deviation from a desired frequency of the NFC antenna, wherein the plurality of tuning processes include a second tuning process that is initiated in response to determining based on the accelerometer output from the accelerometer that the NFC payment object reader is in motion, wherein the second tuning process corresponds to a second tolerance for deviation from the desired frequency of the NFC antenna, wherein the second tolerance for deviation from the desired frequency that is different from the first tolerance for deviation from the desired frequency. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification