IP Library Granted Patent US 12,602,762
Granted Patent B2
US 12,602,762 · App. 18/447,898 · Granted Apr 14, 2026

Heat-based authentication

Inventors: Robert James Norton, Jr. (Raleigh, NC); Robert J. Kapinos (Durham, NC); Russell S. VanBlon (Raleigh, NC); Scott Li (Cary, NC)
Assignee: Lenovo (Singapore) Pte. Ltd.
G06T7/0004G06T2207/30224
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Quick Facts
Patent No.
US 12,602,762
App. No.
18/447,898
Granted
Apr 14, 2026
Kind
B2
Abstract

Apparatuses, methods, and systems are disclosed for heat-based authentication. An apparatus includes a processor and a memory that stores code that is executable by the processor. The code is executable by the processor to capture a thermal image of an object placed within a heated environment, identify at least one characteristic of the object based on the thermal image, and determine an authenticity of the object based on the at least one characteristic.

Claims (35)

1 . An apparatus comprising:

a processor;

a memory that stores code executable by the processor to:

capture a thermal image of an object placed within a heated environment that is configured to uniformly heat the object;

identify at least one characteristic of the object based on the thermal image, the at least one characteristic comprising a heat-responsive feature that is intentionally incorporated into the object and known prior to capturing the thermal image; and

determine an authenticity of the object based on the at least one characteristic by comparing the thermal image to a reference thermal signature previously linked to the object in a secure data structure.

2 . The apparatus of claim 1 , wherein the code is executable by the processor to identify the at least one characteristic based on a thermal signature of the object.

3 . The apparatus of claim 2 , wherein the at least one characteristic comprises a pattern, a predefined indicator, or a combination of both within the thermal signature of the object.

4 . The apparatus of claim 3 , wherein the pattern comprises manufacturing indicia that are introduced to the object during manufacturing.

5 . The apparatus of claim 4 , wherein the manufacturing indicia comprises void patterns, ridge patterns, bubble patterns, or a combination thereof that are indicative of manufacturing equipment, a manufacturing location, or a combination thereof.

6 . The apparatus of claim 3 , wherein the predefined indicator comprises a heat sensitive material that is present within the object and is known prior to capturing the thermal image.

7 . The apparatus of claim 6 , wherein the heat sensitive material comprises a metal wire that is placed within the object in a predefined pattern.

8 . The apparatus of claim 2 , wherein the code is executable by the processor to compare the thermal signature of the object to a second thermal signature of the object to determine the authenticity of the object.

9 . The apparatus of claim 8 , wherein the second thermal signature comprises a previously-determined thermal signature of the object, the previously-determined thermal signature associated with the object in a way that uniquely identifies the object.

10 . The apparatus of claim 9 , wherein the previously-determined thermal signature is associated with the object using a secure database, a blockchain, or a combination thereof.

11 . The apparatus of claim 1 , wherein the object comprises a security card that includes heat sensitive material placed within the security card in a predefined pattern.

12 . The apparatus of claim 1 , wherein the object comprises a collectable item.

13 . The apparatus of claim 1 , wherein the apparatus further comprises an infrared camera for capturing the thermal image of the object.

14 . A system, comprising:

a heated environment;

a thermal camera;

a processor;

a memory that stores code executable by the processor to:

capture a thermal image of an object placed within the heated environment, the heated environment configured to uniformly heat the object;

identify at least one characteristic of the object based on the thermal image, the at least one characteristic comprising a heat-responsive feature that is intentionally incorporated into the object and known prior to capturing the thermal image; and

determine an authenticity of the object based on the at least one characteristic by comparing the thermal image to a reference thermal signature previously linked to the object in a secure data structure.

15 . The system of claim 14 , wherein the heated environment is configured to raise the temperature of the object to a temperature within a predefined temperature range.

16 . The system of claim 14 , wherein the thermal camera comprises an infrared camera.

17 . The system of claim 14 , wherein the code is executable by the processor to identify the at least one characteristic based on a thermal signature of the object.

18 . The system of claim 17 , wherein the at least one characteristic comprises a pattern, a predefined indicator, or a combination of both within the thermal signature of the object.

19 . The system of claim 17 , wherein the code is executable by the processor to compare the thermal signature of the object to a second thermal signature of the object to determine the authenticity of the object, the second thermal signature comprising a previously-determined thermal signature of the object that is captured using the heated environment.

20 . A method comprising:

capturing, by a processor, a thermal image of an object placed within a heated environment that is configured to uniformly heat the object;

identifying at least one characteristic of the object based on the thermal image, the at least one characteristic comprising a heat-responsive feature that is intentionally incorporated into the object and known prior to capturing the thermal image; and

determining an authenticity of the object based on the at least one characteristic by comparing the thermal image to a reference thermal signature previously linked to the object in a secure data structure.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2024
From: LENOVO (UNITED STATES) INC.
To: LENOVO (SINGAPORE) PTE. LTD.
Reel/Frame 066104/0104 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2023
From: NORTON, ROBERT JAMES, JR.; KAPINOS, ROBERT J.; VANBLON, RUSSELL S.; LI, SCOTT
To: LENOVO (UNITED STATES) INC.
Reel/Frame 064959/0229 →
Continuity (1)
Related Publication 20250054126A1 · Feb 13, 2025
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