Light monitor, electronic circuit incorporating a light monitor, and method of making the same
US7265332B2 · kind B2 · utility
3Cited by
7References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2005 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Jun 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light monitor includes a single semiconductor substrate. A light to frequency (LTF) converter is on the single semiconductor substrate, a threshold comparator is on the single semiconductor substrate and coupled to an output of the light to frequency converter, and a light intensity calculator is on the single semiconductor substrate and coupled to an output of the threshold comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.