Image reading apparatus

Details Image reading apparatus Image reading apparatus

1985-04-08

1987-04-14

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 75, 358213, H04N 146, H04N 315

Patent

active

046583033

ABSTRACT:
An image reading apparatus comprising a lighting control means, an analog shift means, a transfer control means and a clock pulse control means. According to the controlling operation of a lighting control means for lighting the light source during a given time period, the output of the CCD sensor is prohibited from being fed to the analog shift means while the light source is turned on, with the output of the CCD sensor being adapted to be fed to the analog shift means and to shift to an output circuit while the light source is turned off, thus preventing the accumulation of light electric-charges, caused by light leakage within a light-source lighting period, and preventing mixed color reading through the remaining electric charges, with the result that the color resolution of the red, green, blue can be performed with accuracy.

REFERENCES:
patent: 4472744 (1984-09-01), Inoue et al.
patent: 4594614 (1986-06-01), Frank

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