Patents
US 12306944 B1: Method and apparatus for runtime detection of bus probing/tampering in computer systems
- Granted
- 2025-05-20
- Filed
- 2021-12-29 application 17565069
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Methods and apparatuses for detection of probing attacks or other tampering on any bus, including on chip and off chip buses. The method can be performed during runtime, concurrently with normal data transfer on the bus, without stopping the normal data transfer, and without imposing any latency to communications on the bus. The tampering or attack is detected by detecting a phase shift between the input waveform and the output waveform of the bus transmitter. The phase shift is induced by an input impedance change at the output of the bus transmitter caused by the tampering. The phase shift can be measured by detecting a change in the output probability of a metastable flip flop.
Source: PVGPATDIS, file of 2026-04-10 (ipg250520.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Rhode Island Board of Trustees 40 patents | US company or organization | Kingston, RI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Ken Qing Yang | Saunderstown, RI | 8 | PVGPATDIS, file of 2026-04-10 | |
| Tao Wei | West Kingston, RI | 34 | PVGPATDIS, file of 2026-04-10 | |
| Zhenyu Xu | Kingston, RI | 52 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G06F | Electric digital data processing | G06F21/566 | 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 |
|---|---|---|---|---|---|
| 2022-03-11 | Assignment Assignment of assignor's interest | WEI, TAO signed 2022-01-12 XU, ZHENYU signed 2022-01-12 YANG, KEN QING signed 2022-01-12 | UNIVERSITY OF RHODE ISLAND BOARD OF TRUSTEES KINGSTON, RI | 59242/785 | 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.