Patents
US 10671350 B2: Systems and methods for analyzing stability using metal resistance variations
- Granted
- 2020-06-02
- Filed
- 2018-07-31 application 16051427
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
This disclosure describes techniques for analyzing statistical quality of bitstrings produced by a physical unclonable function (PUF). The PUF leverages resistance variations in the power grid wires of an integrated circuit. Temperature and voltage stability of the bitstrings are analyzed. The disclosure also describes converting a voltage drop into a digital code, wherein the conversion is resilient to simple and differential side-channel attacks.
Source: PVGPATDIS, file of 2026-04-10 (ipg200602.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| STC.UNM 475 patents | US company or organization | Albuquerque, NM | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| James Plusquellic | Albuquerque, NM | 18 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G06F | Electric digital data processing | G06F7/588 | PVGPATDIS, file of 2026-04-10 |
| G09C | Ciphering or deciphering apparatus for cryptographic or other purposes involving the need for secrecy | G09C1/00 | PVGPATDIS, file of 2026-04-10 |
| H04L | Transmission of digital information, e.g. telegraphic communication | H04L9/002 | PVGPATDIS, file of 2026-04-10 |
| Y04S | Systems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids | Y04S40/20 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-09-18 | Government interest Confirmatory license | UNIVERSITY OF NEW MEXICO signed 2019-06-21 | NATIONAL SCIENCE FOUNDATION ALEXANDRIA, VA | 50415/460 | ECORSEXC, file of 2026-09-25 |
| 2018-09-21 | Assignment Assignment of assignor's interest | THE REGENTS OF THE UNIVERSITY OF NEW MEXICO signed 2018-09-11 | STC.UNM ALBUQUERQUE, NM | 46937/786 | ECORSEXC, file of 2026-09-25 |
| 2018-09-21 | Assignment Assignment of assignor's interest | PLUSQUELLIC, JAMES signed 2018-08-24 | THE REGENTS OF THE UNIVERSITY OF NEW MEXICO ALBUQUERQUE, NM | 46937/781 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.