Patents
US 11035728 B2: Cavity ring-down spectroscopy having interleaved data acquisition for interference mitigation
- Granted
- 2021-06-15
- Filed
- 2019-04-30 application 16399431
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Interleaved data acquisition in optical spectroscopy is used to provide interference correction for time-varying interference. Measurements at a reference frequency are used to provide an estimate of the interference. These reference measurements are interleaved with the remaining measurements in order to provide estimates of the interference vs. time at relevant times. The interference being corrected can be spectrally structured or unstructured.
Source: PVGPATDIS, file of 2026-04-10 (ipg210615.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Picarro, Inc. 59 patents | US company or organization | Santa Clara, CA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Chris W. Rella | Sunnyvale, CA | 45 | PVGPATDIS, file of 2026-04-10 | |
| Hongbing Chen | Sunnyvale, CA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Derek Gregory Fleck | Fremont, CA | 1 | PVGPATDIS, file of 2026-04-10 | |
| John A. Hoffnagle | San Jose, CA | 9 | PVGPATDIS, file of 2026-04-10 | |
| James I. C. Lee | San Jose, CA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Gerald Thomas Sorensen | Newark, CA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Sze Meng Tan | Santa Clara, CA | 41 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01J | Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry | G01J3/0297 | PVGPATDIS, file of 2026-04-10 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N21/39 | 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 |
|---|---|---|---|---|---|
| 2019-05-19 | Assignment Assignment of assignor's interest | CHEN, HONGBING signed 2018-08-08 FLECK, DEREK GREGORY signed 2018-08-08 HOFFNAGLE, JOHN A. signed 2018-08-08 LEE, JAMES IAN signed 2018-08-08 RELLA, CHRIS W. signed 2018-08-08 SORNSEN, GERALD THOMAS signed 2018-08-08 TAN, SZE MENG signed 2018-08-08 | PICARRO, INC. SANTA CLARA, CA | 49220/700 | 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.