Systems for health monitoring using radio waves that include mixing signals at different frequencies

Patent metadata

Field	Value
Publication number	US-11583199-B2
Application number	US-201916682829-A
Country	US
Kind code	B2
Filing date	Nov 13, 2019
Priority date	Dec 18, 2018
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A device for monitoring a health parameter in a person is disclosed. The device includes a semiconductor substrate, at least one transmit antenna configured to transmit millimeter range radio waves over a 3D space below the skin surface of a person, multiple receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves, wherein the semiconductor substrate includes circuits for processing signals received on the multiple receive antennas, wherein processing signals includes mixing signals of two different frequencies, and wherein the semiconductor substrate includes at least one output configured to output a signal that corresponds to a health parameter of a person in response to received radio waves.

First claim

What is claimed is:

1. A device for monitoring a health parameter in a person, the device comprising:
a semiconductor substrate;
at least one transmit antenna configured to transmit millimeter range radio waves over a three-dimensional (3D) space below the skin surface of a person;
multiple receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves;
wherein the semiconductor substrate includes antenna-specific circuits for processing, in parallel, signals received on the multiple receive antennas, wherein the antenna-specific circuits for processing, in parallel, signals received on the multiple receive antennas include, for each receive antenna, a first mixer and a second mixer in series with the first mixer, wherein processing, in parallel, signals received on the multiple receive antennas includes, for each receive antenna, mixing a first received signal at the first mixer to implement a first downconversion and outputting a first downconverted signal and mixing the first downconverted signal at the second mixer to implement a second downconversion and outputting a second downconverted signal; and
wherein the semiconductor substrate includes at least one output configured to output a signal that corresponds to a health parameter of a person in response to the signals output from the antenna-specific circuits.

2. The device of claim 1 , wherein the at least one transmit antenna and the multiple receive antennas are configured for radio waves in a frequency range of 122-126 GHz.

3. The device of claim 1 , wherein the semiconductor substrate includes a mixer to mix a signal at 120 GHz with a signal at 2-6 GHz for transmission from the at least one transmit antenna.

4. The device of claim 1 , wherein the semiconductor substrate includes a mixer to mix a signal received at a receive antenna at 122-126 GHz with a signal at 120 GHz to produce a signal at 2-6 GHz.

5. The device of claim 1 , wherein the semiconductor substrate includes the first mixer to mix a signal received at a receive antenna at 122-126 GHz with a signal at 120 GHz to produce a signal at 2-6 GHz and the second mixer to mix the 2-6 GHz signal with a 2-6 GHz+2.5 MHz signal to produce a 2.5 MHz signal.

6. The device of claim 1 , wherein the at least one transmit antenna and the multiple receive antennas are located within a footprint of the semiconductor substrate.

7. The device of claim 1 , wherein the multiple receive antennas are located at opposite corners of the semiconductor substrate.

8. The device of claim 1 , wherein the semiconductor substrate includes at least one transmit component and multiple receive components, wherein the at least one transmit antenna is collocated with the at least transmit component and the multiple receive antennas are collocated with respective ones of the multiple receive components.

9. The device of claim 8 , wherein the at least one transmit component and the at least one transmit antenna comprise at least two transmit components and at least two transmit antennas and wherein the multiple receive components and multiple receive antennas comprises four receive components and four receive antennas and wherein receive components and receive antennas are collocated at opposite corners of the semiconductor substrate.

10. The device of claim 1 , wherein the at least one transmit antenna has footprint dimensions of no more than 1.3 mm×1.3 mm and the multiple receive antennas each have a footprint dimension of no more than 1.3 mm×1.3 mm.

11. The device of claim 1 , wherein the semiconductor substrate is rectangular in shape and has dimensions of no more than 7 mm by 7 mm.

12. The device of claim 1 , further comprising means for isolating a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas and outputting a signal that corresponds to a blood glucose level in the person in response to the isolated signal.

13. The device of claim 1 , wherein the health parameter is a blood glucose level.

14. The device of claim 1 , wherein the health parameter is a blood pressure.

15. The device of claim 1 , wherein the health parameter is a heart rate.

16. A wearable device including the device of claim 1 .

17. A smartwatch including the device of claim 1 .

18. A dongle including the device of claim 1 .

Assignees

• Movano Inc

Inventors

• Leabman Michael A

Classifications

• H04B2001/3855

  carried in a belt or harness · CPC title

• G01S13/76

  wherein pulse-type signals are transmitted · CPC title

• H04B7/0617

  for beam forming · CPC title

• G01S13/88 Primary

  Radar or analogous systems specially adapted for specific applications (electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00) · CPC title

• H03D7/168

  using a feedback loop containing mixers or demodulators · CPC title