Adaptive optical sensor
US5978025A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1996 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Nov 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated image processing system includes an array of cells arranged in rows and columns. Each cell corresponds to a pixel of an image and includes a photosensitive element for detecting the luminous intensity of its respective pixel and for generating a value. A first switch controls the transfer of the value from a respective photosensitive element to the corresponding capacitor, which stores the value. A second switch couples each of the cells in parallel to a common line. A control circuit receives the values from each cell on the common line and generates a signal for regulating the switching time interval of the first switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.