HERMA—heartbeat microwave authentication
First Claim
1. A microwave sensor module for authenticating a person using data related to the person'"'"'s heartbeat, comprising:
- at least one transmitter configured to transmit a continuous wave (CW) radio frequency (RF) signal;
at least one receiver configured to receive a reflected microwave signal from a person that contains information related to the person'"'"'s heartbeat;
a processor;
a memory containing an authentication application, wherein the authentication application configures the processor to;
receive a portion of the transmitted RF signal using the at least one receiver, wherein the received portion of the transmitted RF signal is utilized as a reference for coherent detection;
extract heartbeat data from the reflected signal related to displacement as a result of the person'"'"'s heartbeat;
compare the extracted heartbeat data against at least one template profile; and
authenticate the person based upon the comparison of the extracted heartbeat data and the at least one template profile.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for identifying and/or authenticating individuals utilizing microwave sensing modules are disclosed. A HEaRtbeat Microwave Authentication (HERMA) system can enable the active identification and/or authentication of a user by analyzing reflected RF signals that contain a person'"'"'s unique characteristics related to their heartbeats. An illumination signal is transmitted towards a person where a reflected signal captures the motion of the skin and tissue (i.e. displacement) due to the person'"'"'s heartbeats. The HERMA system can utilize existing transmitters in a mobile device (e.g. Wi-Fi, Bluetooth, Cellphone signals) as the illumination source with at least one external receive antenna. The received reflected signals can be pre-processed and analyzed to identify and/or authenticate a user.
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Citations
24 Claims
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1. A microwave sensor module for authenticating a person using data related to the person'"'"'s heartbeat, comprising:
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at least one transmitter configured to transmit a continuous wave (CW) radio frequency (RF) signal; at least one receiver configured to receive a reflected microwave signal from a person that contains information related to the person'"'"'s heartbeat; a processor; a memory containing an authentication application, wherein the authentication application configures the processor to; receive a portion of the transmitted RF signal using the at least one receiver, wherein the received portion of the transmitted RF signal is utilized as a reference for coherent detection; extract heartbeat data from the reflected signal related to displacement as a result of the person'"'"'s heartbeat; compare the extracted heartbeat data against at least one template profile; and authenticate the person based upon the comparison of the extracted heartbeat data and the at least one template profile. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A microwave sensor module for authenticating a person using data related to the person'"'"'s heartbeat, comprising:
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at least one transmitter configured to transmit a continuous wave (CW) radio frequency (RF) signal; at least one receiver configured to receive a reflected microwave signal from a person that contains information related to the person'"'"'s heartbeat; a processor; a memory containing an authentication application, wherein the authentication application configures the processor to; extract heartbeat data from the reflected signal related to displacement as a result of the person'"'"'s heartbeat; compare the extracted heartbeat data against at least one template profile; and authenticate the person based upon the comparison of the extracted heartbeat data and the at least one template profile; wherein the authentication application further configures the processor to extract heartbeat data from the reflected signal by; extracting raw data from the reflected signal by constructing an I/Q radar returns matrix and I/Q time series waveforms; bandpass filtering the I/Q time series waveforms to remove effects due to respiration and to isolate heartbeat only I/Q time series waveforms; translating and rotating the heartbeat only I/Q time series waveforms to lie along the Q-axis, where a scaled imaginary part yields heartbeat displacement waveforms; segmenting the heartbeat displacement waveforms into non-overlapping data windows (DW) of a fixed duration; and removing anomalous DW from the data set, where anomalous DW include any DW whose root mean square or maximum absolute value is outside of a specified interval. - View Dependent Claims (9)
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10. A method of authenticating a person using data related to the person'"'"'s heartbeat, the method comprising:
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transmitting a continuous wave (CW) radio frequency (RF) signal using at least one transmitter; receiving a portion of the transmitted RF signal using at least one receiver, wherein the received portion of the transmitted RF signal is utilized as a reference for coherent detection; receiving a reflected microwave signal from a person using the at least one receiver, where the reflected signal contains information related to the person'"'"'s heartbeat; extracting heartbeat data from the reflected signal, where the heartbeat data is related to displacement as a result of the person'"'"'s heartbeat; comparing the extracted heartbeat data against at least one template profile; and authenticating the person based upon the comparison of the extracted heartbeat data and the at least one template profile. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A microwave sensor module for authenticating a person using data related to the person'"'"'s heartbeat, comprising:
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at least one transmitter configured to transmit a continuous wave (CW) radio frequency (RF) signal; at least one receiver configured to receive a reflected microwave signal from a person that contains information related to the person'"'"'s heartbeat; a processor; a memory containing an authentication application, wherein the authentication application configures the processor to; receive a portion of the transmitted RF signal using the at least one receiver, wherein the received portion of the transmitted RF signal is utilized for noise cancellation; extract heartbeat data from the reflected signal related to displacement as a result of the person'"'"'s heartbeat; compare the extracted heartbeat data against at least one template profile; and authenticate the person based upon the comparison of the extracted heartbeat data and the at least one template profile. - View Dependent Claims (20, 21)
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22. A method of authenticating a person using data related to the person'"'"'s heartbeat, the method comprising:
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transmitting a continuous wave (CW) radio frequency (RF) signal using at least one transmitter; receiving a portion of the transmitted RF signal using at least one receiver, wherein the received portion of the transmitted RF signal is utilized for noise cancellation; receiving a reflected microwave signal from a person using the at least one receiver, where the reflected signal contains information related to the person'"'"'s heartbeat; extracting heartbeat data from the reflected signal, where the heartbeat data is related to displacement as a result of the person'"'"'s heartbeat; comparing the extracted heartbeat data against at least one template profile; and authenticating the person based upon the comparison of the extracted heartbeat data and the at least one template profile. - View Dependent Claims (23, 24)
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Specification