Patents
US 12747981 B2: Laser detection using multiple image sensors
- Granted
- 2026-09-29
- Filed
- 2024-12-17 application 18984304
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A silicon-based image sensor has an upconversion layer of crystals. The silicon-based image sensor receives light from a common beam splitter with a second image sensor. An optical band pass filter cooperates with the common beam splitter to pass some of the light to be incident on the upconversion layer of crystals in a second range of wavelengths, which will be absorbed and converted by the upconversion layer of crystals into a third range of wavelengths, and then the third range of wavelengths is transmitted onto the pixels in the silicon-based image sensor. A pulse repetition frequency decoder cooperates with the upconversion layer of crystals to decode a pulse repetition frequency of a laser flash in the second range of wavelengths passed by the optical band pass filter and subsequently upconverted by the upconversion layer of crystals and then captured by the pixels of the silicon-based image sensor.
Source: PTBLXML, file of 2026-09-29 (ipgb20260929.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SRI International 676 patents | US company or organization | Menlo Park, CA | SRI INTERNATIONAL Federal lobbying client EXACT high confidence: identical full name and state SRI INTERNATIONAL Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-09-29 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Namwoong Paik | Lawrenceville, NJ | 11 | PTBLXML, file of 2026-09-29 | |
| Peter A. Levine | West Windsor, NJ | PTBLXML, file of 2026-09-29 | ||
| John D. Bazzano | Perkasie, PA | PTBLXML, file of 2026-09-29 |
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 | G01J1/4257 | PTBLXML, file of 2026-09-29 |
| H10F | Inorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation | H10F39/805 | PTBLXML, file of 2026-09-29 |
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.