Image input device and image input method

Details Image input device and image input method Image input device and image input method

2007-02-20

2010-11-09

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S473000, C358S463000, C358S496000

Reexamination Certificate

active

07830562

ABSTRACT:
There is provided an image input device in which a carriage mounted with an image sensor and three types of light source is moved in a sub-scanning direction of a document by a motor and the document is read in a line sequential manner. The image input device includes a controller controlling a driving of the motor, an operation of the image sensor, and lighting and extinguishing operations of the light source; and a detecting unit outputting an edge signal to the controller when detecting a movement of the carriage corresponding to one sub-scanning line. The controller is configured to sequentially light and extinguish the three types of light source whenever receiving the edge signal from the detecting unit so as to sequentially read out electric charge stored in the image sensor during the lighting period of the respective light source; and discard the electric charge stored in the image sensor during an intervening period before receiving a subsequent edge signal.

REFERENCES:
patent: 62-051869 (1987-03-01), None
patent: 11-004329 (1999-01-01), None
patent: 11-055471 (1999-02-01), None

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