Driving device and method for driving two-dimensional contact im

Details Driving device and method for driving two-dimensional contact im Driving device and method for driving two-dimensional contact im

1992-09-04

1994-05-24

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

348302, H01L 2746

Patent

active

053151020

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.

REFERENCES:
patent: 3603731 (1971-09-01), Weimer
patent: 3696250 (1972-10-01), Weimer
patent: 5160836 (1992-11-01), Miyake
patent: 5182447 (1993-01-01), Nakayama
patent: 5184018 (1993-02-01), Conrads et al.

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