Image reader for image processing apparatus

Details Image reader for image processing apparatus Image reader for image processing apparatus

1985-11-12

1987-04-28

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821329, H04N 314, H04N 1024

Patent

active

046618600

ABSTRACT:
An image reader for a facsimile apparatus or like image processing apparatus which uses a line image sensor. An array of photodiodes arranged in the line image sensor and switches serially connected in one-to-one correspondence with the photodiodes are divided into a plurality of blocks. These blocks are further divided into a plurality groups. Selection switches are associated one with each of the groups and have their output terminals commonly connected group by group. The common output terminals of the selection switches are connected to different input terminals of differential amplifiers, so that a block to be read and another block which is different in group from that block are simultaneously selected by the selection switches.

REFERENCES:
patent: 4453187 (1984-06-01), Komiya et al.
patent: 4499384 (1985-02-01), Segawa et al.
patent: 4500927 (1985-02-01), Ozawa
patent: 4584607 (1986-04-01), Miyazawa

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