Image reading apparatus

Details Image reading apparatus Image reading apparatus

2008-04-01

2008-04-01

Lee, Cheukfan (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S483000, C358S443000, C358S445000, C358S450000

Reexamination Certificate

active

10610867

ABSTRACT:
In an image reading apparatus, with respect to the first to third transfer clock signals for controlling shift registers in an image sensor, the second and third transfer clock signals have a cycle which is double the cycle of the first transfer clock signal, and the third transfer clock signal is shifted by a half cycle relative to the second transfer clock signal. Accordingly, the transfer timing of pixel signals in a second shift register is a half cycle shifted relative to the transfer timing in a third shift register, while the second and third shift registers operate with a transfer cycle which is double the transfer cycle of pixel signals in the first shift register. By this transfer control, the order of pixel signal output generally follows the order of the arrangement in the primary scanning direction of light receiving elements constituting the image sensor.

REFERENCES:
patent: 5767901 (1998-06-01), Kimura
patent: 2004/0008387 (2004-01-01), Ikeno
patent: 2004/0012829 (2004-01-01), Takahashi
patent: 2004/0047006 (2004-03-01), Kato

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