Patents
US 12699186 B2: Interferometric imager and method
- Granted
- 2026-08-04
- Filed
- 2021-06-23 application 17356172
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An imaging method includes: (I) simultaneously illuminating a scene with a first (second) diverging wave originating from a first (second) location and modulated with a first (second) shift-and-add-qualifying-code. A scatterer that scatters the first (second) diverging wave as a first (second) speckle. (II) Detecting, with a receiver, an interference signal, produced from interference between the speckle fields, and including a code temporally shifted with respect to the first SAA-code by a large-scale time-shift. (III) Circulantly correlating the interference signal with a reference SAA-code to generate a correlation signal. (IV) Determining the time-difference-of-arrival from the large-scale time-shift. (V) Determining a location of the scatterer by: determining, from the time-difference-of-arrival, a hyperbolic contour that locates the scatterer angularly; and determining, from one of (i) a small-scale time-shift of a peak of the correlation signal and (ii) a ranging delay, an elliptical contour that locates a range of the scatterer from the receiver.
Source: PTBLXML, file of 2026-08-04 (ipgb20260804.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE 771 patents | US company or organization | Denver, CO | THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE CORP. State business registration FUZZY medium confidence: same name (legal endings aside) and state | PTBLXML, file of 2026-08-04 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Kelvin Wagner | Boulder, CO | 5 | PTBLXML, file of 2026-08-04 | |
| Kai-Ting Ting | Boulder, CO | PTBLXML, file of 2026-08-04 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01S | Radio direction-finding; radio navigation; determining distance or velocity by use of radio waves; locating or presence-detecting by use of the reflection or reradiation of radio waves; analogous arrangements using other waves | G01S17/89 | PTBLXML, file of 2026-08-04 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-05-16 | Assignment Assignment of assignor's interest | WAGNER, KELVIN signed 2021-10-12 TING, KAI-TING signed 2021-10-21 | THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE DENVER, CO | 59915/759 | PASDL, file of 2026-08-13 |
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.