Techniques to reduce power consumption in near field communication systems

Patent metadata

Field	Value
Publication number	US-11742894-B2
Application number	US-202217583347-A
Country	US
Kind code	B2
Filing date	Jan 25, 2022
Priority date	Feb 27, 2019
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

Various embodiments are generally directed to techniques communicate in a cellular communication frequency range, detect a resonant signal in response to the communication in the cellular communication frequency range for cellular communication, the resonant signal to indicate presence of a contactless card. Embodiments also include enabling a near-field communication device to send a communication to the contactless card based on the detection of the resonant signal, the near-field communication device to communicate with the contactless card in a near-field communication frequency range.

First claim

What is claimed is:

1. A computing device, comprising:
memory configured to store instructions; and
processing circuitry coupled with the memory, the processing circuitry configured to execute the instructions, that when executed, cause the processing circuitry to:
determine a contactless card is within a near-field communication (NFC) communication range of the computing device based on a detection of a resonant signal, wherein the resonant signal is detected based on one or more communications communicated in a cellular frequency range;
cause a transceiver to transition from a lower power state to a higher power state to enable NFC communication with the contactless card; and
send, via the transceiver, one or more NFC communications to the contactless card.

2. The computing device of claim 1 , wherein the lower state for the transceiver is an off state.

3. The computing device of claim 1 , wherein the cellular frequency range comprises one of a 700 Megahertz (MHz), 800 MHz frequency range, a 850 MHz frequency range, a 1700 MHz frequency range, a 1900 MHz frequency range, a 2100 MHz frequency range, a 2300 MHz frequency range, a 2500 MHz frequency range, and a 2600 MHz frequency range, and the second frequency range comprising a 13.56 MHz frequency range.

4. The computing device of claim 1 , wherein the resonant signal is detected based on a load detected on one or more of the transceiver, an amplifier associated with the transceiver, a cellular communications transceiver, an amplifier associated with the cellular communications transceiver, or any combination thereof.

5. The computing device of claim 4 , comprising a detection circuit, and wherein the load is a detected by the detection circuit.

6. The computing device of claim 1 , wherein the one or more NFC communications comprise data to perform an authentication, a transaction, or both.

7. The computing device of claim 5 , wherein the data is comprised in a cryptogram.

8. The apparatus of claim 1 , comprising a housing having a display, the transceiver, the circuitry, and the near-field communication device.

9. A computer-implemented method, comprising:
determining a contactless card is within a near-field communication (NFC) communication range of the computing device based on a detection of a resonant signal, wherein the resonant signal is detected based on one or more communications communicated in a cellular frequency range;
causing a transceiver to transition from a lower power state to a higher power state to enable NFC communication with the contactless card; and
sending, via the transceiver, one or more NFC communications to the contactless card.

10. The computer-implemented method of claim 9 , wherein the lower state for the transceiver is an off state.

11. The computer-implemented method of claim 9 , wherein the cellular frequency range comprises one of a 700 Megahertz (MHz), 800 MHz frequency range, a 850 MHz frequency range, a 1700 MHz frequency range, a 1900 MHz frequency range, a 2100 MHz frequency range, a 2300 MHz frequency range, a 2500 MHz frequency range, and a 2600 MHz frequency range, and the second frequency range comprising a 13.56 MHz frequency range.

12. The computer-implemented method of claim 9 , wherein the resonant signal is detected based on a load detected on one or more of the transceiver, an amplifier associated with the transceiver, a cellular communications transceiver, an amplifier associated with the cellular communications transceiver, or any combination thereof.

13. The computer-implemented method of claim 12 , wherein the load is a detected by a detection circuit.

14. The computer-implemented method of claim 9 , wherein the one or more NFC communications comprise data to perform an authentication, a transaction, or both.

15. The computer-implemented method of claim 9 , wherein the data is comprised in a cryptogram.

16. A non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by circuitry, cause the circuitry to:
determine a contactless card is within a near-field communication (NFC) communication range of the computing device based on a detection of a resonant signal, wherein the resonant signal is detected based on one or more communications communicated in a cellular frequency range;
cause a transceiver to transition from a lower power state to a higher power state to enable NFC communication with the contactless card; and
send, via the transceiver, one or more NFC communications to the contactless card.

17. The non-transitory computer-readable storage medium of claim 16 , wherein the lower state for the transceiver is an off state.

Assignees

• Capital One Services Llc

Inventors

• Osborn Kevin
• Wurmfeld David
• Emmott Kevan

Classifications

• H04B5/45

  Transponders · CPC title

• H04B5/266

  One coil at each side, e.g. with primary and secondary coils · CPC title

• G06K19/0723

  the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs · CPC title

• G06K19/07773

  Antenna details (antennas for wireless devices, e.g. RFID tags, in general H01Q1/22) · CPC title

• G06K7/10128

  the step consisting of detection of the presence of one or more record carriers in the vicinity of the interrogation device · CPC title