Systems for health monitoring using radio waves that include signal isolation

Patent metadata

Field	Value
Publication number	US-2020187813-A1
Application number	US-201916682876-A
Country	US
Kind code	A1
Filing date	Nov 13, 2019
Priority date	Dec 18, 2018
Publication date	Jun 18, 2020
Grant date	—

Abstract

A system for monitoring a health parameter in a person is disclosed. The system includes 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, and 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 health parameter of the person in response to the isolated signal.

First claim

What is claimed is:

1 . A system for monitoring a health parameter in a person, the device comprising:
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; and 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 health parameter of the person in response to the isolated signal.

2 . The system 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 system of claim 1 , further comprising a semiconductor substrate with at least one transmit component and multiple receive components, wherein the at least one transmit component is collocated with the at least transmit antenna and the multiple receive components are collocated with respective ones of the multiple receive antennas.

4 . The system of claim 1 , 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.

5 . The system of claim 1 , wherein the transmit components and transmit antennas are collocated on opposite sides of the semiconductor substrate.

6 . The system 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.

7 . The system of claim 1 , wherein the health parameter is a blood glucose level.

8 . The system of claim 1 , wherein the health parameter is a blood pressure.

9 . The system of claim 1 , wherein the health parameter is a heart rate.

10 . The system of claim 1 , further comprising means for transmitting millimeter range radio waves over a 3D space below the skin surface of a person by transmitting from a first transmit antenna and then from a second transmit antenna such that the first transmission does not overlap in time with the second transmission.

11 . The system of claim 1 , wherein the 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 is further configured for implementing beamforming signal processing.

12 . The system of claim 1 , wherein the 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 is further configured for using beamforming to focus a receive beam on a particular blood vessel of the person.

13 . The system of claim 1 , wherein the 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 is further configured for using beamforming to focus a receive beam on the basilic vein of the person.

14 . The system of claim 1 , wherein the 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 is further configured for implementing Doppler effect signal processing.

15 . The system of claim 1 , wherein the 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 is further configured for using Doppler effect processing to isolate signals that correspond to relative movement.

16 . The system of claim 1 , wherein the 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 is further configured for using Doppler effect processing, including fast Fourier transform (FFT) processing, to isolate signals that correspond to relative movement.

17 . The system of claim 1 , wherein the 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 is further configured for implementing Kalman filters to smooth out noisy data.

18 . The system of claim 1 , wherein the 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 is further configured for digitally combining received signals from the multiple receive antennas.

19 . The system of claim 1 , wherein the 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 is further configured for discarding signals generated directly from the transmitted millimeter range radio waves.

Assignees

• Movano Inc

Inventors

• Leabman Michael A

Classifications

• G01S7/028

  Miniaturisation, e.g. surface mounted device [SMD] packaging or housings · CPC title

• H04B2001/3855

  carried in a belt or harness · CPC title

• H04B1/385

  Transceivers carried on the body, e.g. in helmets · CPC title

• H04B2001/3861

  carried in a hand or on fingers · CPC title

• A61B5/7257

  using Fourier transforms · CPC title