Semiconductor photosensor device and information apparatus with sensitivity region for wide dynamic range
US7214922B2 · kind B2 · utility
9Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Aug 31, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/94106
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor photosensor device includes a plurality of photodiode sections, a switch, and an output section is provided. The plurality of photodiode sections have different illuminance-output characteristics. The switch selects any one of the plurality of photodiodes sections on the basis of an illuminance of incident light irradiated on the photodiode sections. The output section outputs an signal from the selected photodiode section through the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.