Image reading apparatus having charge transfer means between the

Details Image reading apparatus having charge transfer means between the Image reading apparatus having charge transfer means between the

1995-01-31

1998-07-21

Garber, Wendy

Television

Camera, system and detail

With single image scanning device supplying plural color...

348283, 348316, 348323, H04N 314

Patent

active

057841012

ABSTRACT:
A color linear image sensor is constituted by forming a plurality of linear image sensors on a single wafer, each linear image sensor including a photoelectric conversion unit for converting light from an object into an electrical signal, a plurality of charge transfer units for transferring the signal converted into the electrical signal by the photoelectric conversion unit to an output unit, and color filters which are formed on the photoelectric conversion unit to color-separate the light from the object. A plurality of lines of photoelectric conversion units are arranged in each linear image sensor. At least one charge transfer unit is arranged between the photoelectric conversion units to synthesize output signals from the plurality of lines of photoelectric conversion units and to transfer the output signals from the photoelectric conversion units to the next photoelectric conversion unit. An accumulation unit temporarily stores the output signals from the photoelectric conversion units. By changing the method of applying a drive pulse, the charge transfer unit and the accumulation unit transfer the output signals in both forward and backward directions.

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IEEE Transactions On Consumer Electronics, vol. 38, No. 3, Aug. 1992, New York (US), pp. 576-582, XP000311896 T.C. Hsieh et al.: "linear image sensor optimized for fast color scanning".

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