Patents
US 10868535 B2: Systems and methods for leveraging path delay variations in a circuit and generating error-tolerant bitstrings
- Granted
- 2020-12-15
- Filed
- 2020-04-08 application 16843660
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A Hardware-Embedded Delay PUF (HELP) leverages entropy by monitoring path stability and measuring path delays from core logic macros. HELP incorporates techniques to deal with bias. A unique feature of HELP is that it may compare data measured from different test structures. HELP may be implemented in existing FPGA platforms. HELP may leverage both path stability and within-die variations as sources of entropy.
Source: PVGPATDIS, file of 2026-04-10 (ipg201215.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 | |
| James Aarestad | Albuquerque, NM | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H03K | Pulse technique | H03K19/00323 | PVGPATDIS, file of 2026-04-10 |
| H04L | Transmission of digital information, e.g. telegraphic communication | H04L9/0662 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.