# US 2025/0143582 A1 · Multimodal biometric device

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- Number: US 2025/0143582 A1
- Document ID: US20250143582A1
- Status: Published application
- Kind: A1
- Application number: 18/766,143
- Filed: 2024-07-08
- Published: 2025-05-08
- Earliest claimed: 2018-12-20
- Assignees: The Regents of the University of California
- Applicants: The Regents of the University of California
- Inventors: Eliah Aronoff-Spencer; Tom Kalisky; Daniel Johnson; Alex Grant; Steve Saggese
- Web page: https://patentgrep.com/patent/US20250143582A1

## CPC

- A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20)
- A61B 5/0033: {Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room}
- A61B 5/0077: {Devices for viewing the surface of the body, e.g. camera, magnifying lens}
- A61B 5/02444: {Details of sensor (A61B5/02427 takes precedence)}
- A61B 5/0245: by using sensing means generating electric signals, {i.e. ECG signals}
- A61B 5/1172: using fingerprinting
- A61B 5/14542: {for measuring blood gases (A61B5/14551 takes precedence)}
- G06V 10/143: Sensing or illuminating at different wavelengths
- G06V 10/147: Details of sensors, e.g. sensor lenses (fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19)
- G06V 40/1312: {direct reading, e.g. contactless acquisition}
- G06V 40/1347: {Preprocessing; Feature extraction}
- G06V 40/1382: {Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger}
- G06V 40/45: {Detection of the body part being alive}
- G06V 40/70: Multimodal biometrics, e.g. combining information from different biometric modalities
- G06V 40/15: {Biometric patterns based on physiological signals, e.g. heartbeat, blood flow}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

A multimodal biometric device is disclosed. An apparatus may include a non-contact imaging system. The non-contact imaging system may include imaging optics, optical illumination optically coupled to the imaging optics, and a configurable body part support to support different body parts at corresponding focal lengths to capture different portions of the different body parts. An apparatus may also include a housing coupled to the imaging optics, the optical illumination, and the configurable body part support.

## Claims

### Claim 1

(canceled)

### Claim 2

An apparatus comprising:
a fingerprint imaging system, the fingerprint imaging system comprising;
imaging optics;
optical illumination optically coupled to the imaging optics; and
a first removable top comprising selectable and rotatable non-contact apertures, each aperture characterized by one or more of a different size and a different shape relative to the other selectable apertures;
a second removable top comprising a platen-based contact aperture; and
a housing comprising an opening and coupled to the imaging optics, the optical illumination, and the rotary top;
wherein the rotary top is configured to rotate to align a selected aperture of the selectable apertures with the opening of the housing.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the imaging optics and are based on frustrated total internal reflection (FTIR) for the second removable top.

### Claim 4 (depends on 2)

The apparatus of claim 2, wherein the imaging optics and are based on and direct contact viewing with a platen for the second removable top.

### Claim 5 (depends on 2)

The apparatus of claim 2, wherein the housing blocks ambient external light from the imaging system during imaging of the body part.

### Claim 6 (depends on 2)

The apparatus of claim 2, wherein the fingerprint imaging system captures images at a resolution of at least 1000 pixels-per-inch.

### Claim 7 (depends on 2)

The apparatus of claim 2, wherein the fingerprint imaging system comprises one or more cameras.

### Claim 8 (depends on 2)

The apparatus of claim 2, wherein the fingerprint imaging system comprises one or more of a CMOS and CCD imager, and wherein the fingerprint imaging system is monochromatic or color detecting.

### Claim 9 (depends on 2)

The apparatus of claim 2, wherein the imaging optics comprises a fixed focus and a fixed focal length or an adjustable focus and an adjustable focal length.

### Claim 10 (depends on 2)

The apparatus of claim 2, wherein the optical illumination comprises one or more colors of LEDs over a range of wavelengths from UV through NIR.

### Claim 11 (depends on 2)

The apparatus of claim 2, wherein the apparatus further comprises:
imagers; and
illumination, wherein the imagers and the illumination collect additional types of biometric images.

### Claim 12 (depends on 2)

The apparatus of claim 2, wherein a portion of interest accommodated by a selectable aperture exposes the portion of interest to the imaging optics and the optical illumination to provide non-contact imaging of the portion of interest.

### Claim 13 (depends on 2)

The apparatus of claim 2, wherein the apparatus is further configured to measure a health parameter of a subject using the imaging optics and the optical illumination.

### Claim 14 (depends on 2)

The apparatus of claim 2, wherein the imaging optics and are based on frustrated total internal reflection (FTIR) for the second removable top.

### Claim 15 (depends on 2)

The apparatus of claim 2, wherein the imaging optics and are based on and direct contact viewing with a platen for the second removable top.
