Image reading apparatus using a motor and controlling driving pu

Details Image reading apparatus using a motor and controlling driving pu Image reading apparatus using a motor and controlling driving pu

1986-10-10

1991-02-12

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Synchronization

358494, 358497, H04H 136

Patent

active

049928880

ABSTRACT:
An image reading apparatus which is capable of arbitrarily varying the image magnification, utilizing a line image sensor. The sensor is moved by a stepping motor, the phase of which is controlled by the synchronization signal of the line image sensor. For example, the frequency of the pulses may be controlled, or the number of pulses supplied may be converted on the basis of an error between the number which were to be supplied and the number actually supplied.

REFERENCES:
patent: 4217611 (1980-08-01), Ogawa
patent: 4296441 (1981-10-01), Ogasawara
patent: 4423439 (1983-12-01), Watanabe
patent: 4636869 (1987-01-01), Tomohisa et al.
patent: 4651222 (1987-03-01), Gokita
patent: 4652936 (1987-03-01), Hatayama
patent: 4658302 (1987-04-01), Sakamoto
patent: 4663672 (1987-05-01), Sakamoto
patent: 4667951 (1987-05-01), Honjo et al.
patent: 4683499 (1987-07-01), Kuwabara

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