# US 2018/0321372 A1 · Shoe analyzer 5bis capacitive

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- Number: US 2018/0321372 A1
- Document ID: US20180321372A1
- Status: Published application
- Kind: A1
- Application number: 15/909,950
- Filed: 2018-03-01
- Published: 2018-11-08
- Earliest claimed: 2016-04-15
- Inventors: Alessandro Manneschi
- Web page: https://patentgrep.com/patent/US20180321372A1

## CPC

- G01N 22/00: Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more (G01N3/00 - G01N17/00, G01N24/00 take precedence)
- G01S 7/41: using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S 13/887: {for detection of concealed objects, e.g. contraband or weapons}
- G01S 13/89: for mapping or imaging
- G01V 3/08: operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices (with electromagnetic waves G01V3/12)
- G01V 3/12: operating with electromagnetic waves {(operating with millimetre waves G01V8/005)}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01V: GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B29/02)

## Abstract

The present invention relates to a detector device for detection of unauthorised objects or substances, including a support base designed to receive at least one foot covered by its shoe, of an individual to be controlled, wherein it includes in combination microwave sender/receiver means, measuring means of the width of an element inserted in between the microwave sender/receiver means, analysis means of at least one parameter of the transmission time between the microwave sender/receiver means and/or the amplitude of the signal transmitted between the microwave sender/receiver means, and standardisation means of the abovementioned analysis relative to a size unit of standard width obtained on the basis of the width-measuring means.

## Claims

### Claim 1

A detector device for detection of unauthorised objects or substances, comprising a support base designed to receive at least one foot covered by its shoe, of an individual to be controlled, wherein it comprises measurement means of the electrical capacity formed by the sole of a shoe placed on the support base.

### Claim 2 (depends on 1)

The device as claimed in claim 1, wherein the measurement means of the electrical capacity formed by the sole of a shoe placed on the support base are adapted to measure the height of the sole.

### Claim 3 (depends on 1)

The device as claimed in claim 1, wherein it comprises handles placed on the upper part of panels solid with the support base.

### Claim 4 (depends on 3)

The device as claimed in claim 3, wherein the handles comprise electrodes.

### Claim 5 (depends on 4)

The device as claimed in claim 4, wherein the electrodes formed on the handles are made from electrically conductive material embedded in the mass of the panels.

### Claim 6 (depends on 1)

The device as claimed in claim 1, wherein it comprises an electric generator connected in series of handles provided on lateral panels and electrodes placed on the support base.

### Claim 7 (depends on 6)

The device as claimed in claim 6, wherein the electrodes placed on the support base are concentric to cones associated with microwave transducers adapted to generate microwaves vertically in a sole.

### Claim 8 (depends on 6)

The device as claimed in claim 6, wherein the electric generator is adapted to generate voltage of between 0.1V and 10V, preferably of the order of 1 volt.

### Claim 9 (depends on 1)

The device as claimed in claim 1, wherein it comprises:
microwave sender/receiver means,
measuring means of the width of an element inserted in between the microwave sender/receiver means,
analysis means of at least one parameter of the transmission time between the microwave sender/receiver means and/or the amplitude of the signal transmitted between the microwave sender/receiver means, and
standardisation means of the abovementioned analysis relative to a size unit of standard width obtained on the basis of width-measuring means.

### Claim 10 (depends on 1)

The device as claimed in claim 1, wherein it comprises at least one microwave sender means placed to one side of the base and at least one microwave receiver means placed on the side opposite the base such that the microwaves emitted by the microwave sender means pass through the sole of the shoe placed on the support base before reaching the associated microwave receiver means placed on the side opposite the base and that the measurement means of the width of the element inserted in between the microwave sender/receiver means, comprise infrared sender/receivers adapted to measure the time of two-way propagation between an infrared sender and the associated infrared receiver.

### Claim 11 (depends on 1)

The device as claimed in claim 1, wherein it also comprises means, preferably based on microwave, adapted to detect stratification by vertical stacking, in the sole, by detection of successive echoes following emission of waves towards the sole.

### Claim 12 (depends on 11)

The device as claimed in claim 11, wherein it comprises a plurality of means adapted to detect successive vertical echoes distributed over the length of the device.

### Claim 13 (depends on 1)

The device as claimed in claim 1, wherein it comprises microwave adapter coupling means, inserted in between microwave transducers and a foot support plate.

### Claim 14 (depends on 13)

The device as claimed in claim 13, wherein the adapter means comprise a pyramid engaged in each cone associated with a microwave transducer, comprising material with the foot support plate.

### Claim 15 (depends on 1)

The device as claimed in claim 1, further comprising means, preferably based on microwave, adapted to detect stratification by vertical stacking, in the sole, by detection of successive echoes following emission of waves towards the sole, wherein it comprises standardisation means of the signal coming from detection means of vertical stratification, on the basis of a signal representative of the estimated height of the sole.

### Claim 16 (depends on 1)

The device as claimed in claim 1, further comprising the electrodes placed on the support base are concentric to cones associated with microwave transducers adapted to generate microwaves vertically in a sole, wherein each microwave sender and receiver is associated with a focusing cone.

### Claim 17 (depends on 1)

The device as claimed in claim 1, wherein it comprises several series of detection means each comprising several detection means distributed geographically similarly for all said series of detection means.

### Claim 18 (depends on 1)

The device as claimed in claim 1, wherein it comprises an imaging device of the shoe, in particular of the sole and analysis means of the signal coming from the imaging device for estimation of a sole width.

### Claim 19 (depends on 1)

A method for analysis of signals coming from the different measuring means of a device as claimed in claim 1 and generation of an alarm in case of detection of an anomaly.

### Claim 20 (depends on 19)

The method as claimed in claim 19, wherein it comprises at least one standardisation step of the amplitude of signals coming from the measurement means of the electrical capacity formed by the sole of a shoe placed on the support base, as a function of a second measurement, such as a measurement of the temporal distribution of echoes spreading vertically as a function of measurement of height of the sole.
