Character and picture information reading apparatus

Details Character and picture information reading apparatus Character and picture information reading apparatus

1985-03-08

1986-12-16

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358293, 358294, 355 14SH, H04N 104

Patent

active

046301275

ABSTRACT:
In an apparatus for reading an image of the document fixedly placed, the document's position, size, etc. is automatically decided. Linear light sources are arranged on a pressure plate in a position on the back side of the document in both the main scanning direction and the sub-scanning direction, and the presence or absence of lights from those light sources is monitored by a sensor arranged on the side facing the document to decide the presence or absence of the document. The sensor comprises a one-dimensional solid scan type image pickup device for reading images, and another sensor for receiving the light coming from the position locating ahead the scan position currently detected by the image pickup device.

REFERENCES:
patent: 4275423 (1981-06-01), Takahashi et al.
patent: 4325086 (1982-04-01), Sato et al.
patent: 4511246 (1985-04-01), Nishiyama
patent: 4538185 (1985-08-01), Wiggins
patent: 4585332 (1986-04-01), Shenoy

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