# US 7,607,584 B2 · Verification of a biometric identification

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- Number: US 7,607,584 B2
- Document ID: US7607584B2
- Status: Granted
- Kind: B2
- Application number: 11/411,716
- Filed: 2006-04-26
- Published: 2007-11-01
- Granted: 2009-10-27
- Earliest claimed: 2006-04-26
- Assignees: International Business Machines Corporation
- Inventors: Dimitri Kanevsky; Dmitri V. Talapin
- Web page: https://patentgrep.com/patent/US7607584B2

## CPC

- G07C 9/37: using biometric data, e.g. fingerprints, iris scans or voice recognition
- A61B 5/1172: using fingerprinting
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An identification verification system includes a combination of indicia that represent measurable characteristics mapped into a characteristic signature, and an indicia detector for detecting the characteristic signature and verifying authenticity of the characteristic signature.

## Claims

### Claim 1

An identity verification system comprising:
a combination of indicia that represents measurable characteristics mapped into a characteristic signature, wherein the measurable characteristics comprise a luminescent characteristic and a biometric characteristic, wherein the biometric characteristic is integrated with the luminescent characteristic to create a unique verification image; and
an indicia detector for detecting the characteristic signature and verifying authenticity of the characteristic signature,
wherein the combination of indicia comprises colloidal nanoparticles having a characteristic emission spectrum comprising a plurality of lines at characteristic wavelengths with characteristic intensity ratio, wherein the indicia detector detects the characteristic emission spectrum.

### Claim 2 (depends on 1)

The identity verification system of claim 1, further comprising a database of indicia, wherein the indicia detector compares the characteristic emission spectrum to the database of indicia having corresponding characteristic emission spectrum to determine a security level associated with the indicia.

### Claim 3 (depends on 1)

The identity verification system of claim 1, wherein the measurable characteristics are invariant.

### Claim 4 (depends on 1)

The identity verification system of claim 1, wherein the indicia comprises a sprayed layer over an area.

### Claim 5 (depends on 1)

The identity verification system of claim 1, wherein the indicia comprises a sprayed layer over a plurality of substrates.

### Claim 6 (depends on 1)

The identity verification system of claim 1,
wherein the measurable characteristics include adsorption of radio-frequency radiation, the identity verification system further comprising:
a radio field generator; and
a magnetic field generator for producing a magnetic field affecting the indicia, a portion of the radio-frequency radiation being absorbed by the indicia affected by the magnetic field, wherein the absorbed portion of the radio-frequency radiation is the characteristic signature.

### Claim 7

An identity verification system comprising:
a combination of indicia that represents measurable characteristics mapped into a characteristic signature, wherein the measurable characteristics comprise a luminescent characteristic and a biometric characteristic, wherein the biometric characteristic is integrated with the luminescent characteristic to create a unique verification image; and
an indicia detector for detecting the characteristic signature and verifying authenticity of the characteristic signature,
wherein the indicia has a known time-decay characteristic.

### Claim 8 (depends on 7)

The identity verification system of claim 7, wherein the measurable characteristics are invariant.

### Claim 9 (depends on 7)

The identity verification system of claim 7, wherein the indicia comprises a sprayed layer over an area.

### Claim 10 (depends on 7)

The identity verification system of claim 7, wherein the indicia comprises a sprayed layer over a plurality of substrates.

### Claim 11 (depends on 7)

The identity verification system of claim 7, wherein the measurable characteristics include adsorption of radio-frequency radiation, the identity verification system further comprising:
a radio field generator; and
a magnetic field generator for producing a magnetic field affecting the indicia, a portion of the radio-frequency radiation being absorbed by the indicia affected by the magnetic field, wherein the absorbed portion of the radio-frequency radiation is the characteristic signature.