Driving device and method for driving two-dimensional contact image sensor
US5315102A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1992 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Sep 4, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving device for driving a two-dimensional contact image sensor comprising a plurality of pixel forming light-receiving elements that are arranged in a two-dimensional matrix in both main scanning and frame scan directions, charge transfer switching elements for respective pixels that are individually connected to said light-receiving elements and which transfer the charges generated in said light-receiving elements, gate lines that are common to said charge transfer switching elements for respective pixels in the main scanning direction, and data lines that are connected to said charge transfer switching elements for respective pixels and which are common thereto in the frame scan direction, said driving device carrying out a plurality of pre-scans cycle on the same image without producing an output image signal and, thereafter, scanning the image to produce an output image signal. Whereby, imagelags that would otherwise occur in the frame scan direction are eliminated to enable the production of correct output image signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.