MITIGATING OVER-COUPLING IN CLOSE PROXIMITY NFC DEVICES
First Claim
1. A method of mitigating an antenna over-coupling condition in a near field communication (NFC) device, comprising:
- generating a transmission signal for a transmitted carrier at a transmit circuit of an initiator NFC device;
receiving a received carrier at a receive circuit of the initiator NFC device;
detecting, at the initiator NFC device, the antenna over-coupling condition related to antenna coupling with a remote NFC device based on at least one of the transmission signal or the received carrier; and
modifying at least one of a transmit circuit parameter for the transmit circuit or a receive circuit parameter for the receive circuit to mitigate the antenna over-coupling condition.
1 Assignment
0 Petitions
Accused Products
Abstract
Aspects disclosed herein relate to mitigating an antenna over-coupling condition in near field communication (NFC) devices. A transmission signal for a transmitted carrier is generated at a transmit circuit of an initiator NFC device, and a received carrier is received at a receive circuit of the initiator NFC device. The initiator NFC device can detect an antenna over-coupling condition related to antenna coupling with a remote NFC device based at least in part on the transmission signal and the received carrier. Where the condition is detected, at least one of a transmit circuit parameter for the transmit circuit or a receive circuit parameter of the receive circuit is modified to reduce the antenna over-coupling condition
14 Citations
30 Claims
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1. A method of mitigating an antenna over-coupling condition in a near field communication (NFC) device, comprising:
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generating a transmission signal for a transmitted carrier at a transmit circuit of an initiator NFC device; receiving a received carrier at a receive circuit of the initiator NFC device; detecting, at the initiator NFC device, the antenna over-coupling condition related to antenna coupling with a remote NFC device based on at least one of the transmission signal or the received carrier; and modifying at least one of a transmit circuit parameter for the transmit circuit or a receive circuit parameter for the receive circuit to mitigate the antenna over-coupling condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for mitigating an antenna over-coupling condition in a near field communication (NFC) device, comprising:
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a transmitter configured to generate a transmission signal for a transmitted carrier at a transmit circuit of an initiator NFC device; a receiver configured to receive a received carrier at a receive circuit of the initiator NFC device; an over-coupling detecting component configured to detect, at the initiator NFC device, the antenna over-coupling condition related to antenna coupling with a remote NFC device based on at least one of the transmission signal or the received carrier; and a transmit (Tx)/receive (Rx) parameter component configured to modify at least one of a transmit circuit parameter for the transmit circuit or a receive circuit parameter for the receive circuit to mitigate the antenna over-coupling condition. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for mitigating an antenna over-coupling condition in a near field communication (NFC) device, comprising:
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means for generating a transmission signal for a transmitted carrier at a transmit circuit of an initiator NFC device; means for receiving a received carrier at a receive circuit of the initiator NFC device; means for detecting, at the initiator NFC device, the antenna over-coupling condition related to antenna coupling with a remote NFC device based on at least one of the transmission signal or the received carrier; and means for modifying at least one of a transmit circuit parameter for the transmit circuit or a receive circuit parameter for the receive circuit to mitigate the antenna over-coupling condition. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A computer-readable medium storing computer executable code for mitigating an antenna over-coupling condition in a near field communication (NFC) device, comprising:
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code for generating a transmission signal for a transmitted carrier at a transmit circuit of an initiator NFC device; code for receiving a received carrier at a receive circuit of the initiator NFC device; code for detecting, at the initiator NFC device, the antenna over-coupling condition related to antenna coupling with a remote NFC device based on at least one of the transmission signal or the received carrier; and code for modifying at least one of a transmit circuit parameter for the transmit circuit or a receive circuit parameter for the receive circuit to mitigate the antenna over-coupling condition. - View Dependent Claims (27, 28, 29, 30)
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Specification