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US 2023/0145524 A1Published application
Non-invasive analyte sensor with superheterodyne circuit
AssigneeKnow Labs, Inc.
InventorEdward Stephen LOWE, JR.
Life of this patent
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Abstract
A non-invasive analyte sensor includes a receive side with a superheterodyne circuit. The superheterodyne circuit include a mixer with an input that is electrically connected to a receive antenna, and a radio frequency generator connected to another input of the mixer and that is configured to generate a radio frequency signal. The mixer outputs a signal that is based on a frequency of a signal received by the receive antenna and the frequency of the signal generated by the radio frequency generator.
Claims13
A non-invasive analyte sensor system, comprising:
- a first antenna that is configured to emit radio frequency electromagnetic waves, the first antenna is positioned and arranged to transmit a radio frequency transmit signal into a target containing at least one analyte;
- a second antenna that is configured to detect radio frequency electromagnetic waves, the second antenna is positioned and arranged to detect a radio frequency response resulting from transmission of the radio frequency transmit signal by the first antenna into the target containing the at least one analyte;
- a transmit circuit that is electrically connectable to the first antenna, the transmit circuit includes a first radio frequency signal generator that is configured to generate the radio frequency transmit signal to be transmitted by the first antenna;
- a receive circuit that is electrically connectable to the second antenna, and the receive circuit includes a superheterodyne circuit.
1 more element
A non-invasive analyte sensor system, comprising:
- an antenna array having at least two antennas each of which is configured to emit and receive radio frequency electromagnetic waves;
- a transmit circuit that is selectively electrically connectable to any one or more of the at least two antennas, the transmit circuit includes a first radio frequency signal generator that is configured to generate at least one transmit signal in a radio frequency range of the electromagnetic spectrum to be transmitted into a target by the one or more of the at least two antennas the transmit circuit is electrically connected to;
- and
- a receive circuit that is selectively electrically connectable to any one or more of the at least two antennas;
- the receive circuit includes a mixer with a first input that is electrically connectable to the one or more of the at least two antennas the receive circuit is electrically connected to, and a second radio frequency generator connected to a second input of the mixer, the mixer is configured to generate a radio frequency output signal that is based on signals received via the first input and the second input, and the mixer includes an output that outputs the generated radio frequency output signal.
2 more elements
Dependencies are inferred from the claim text.