Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1994-10-19
1997-07-08
Vu, Kim
Facsimile and static presentation processing
Facsimile
Picture signal generator
358487, 358488, 358497, H04N 104
Patent
active
056467460
ABSTRACT:
An image input device having a movable carriage is provided with an origin detection element that moves out of the path of the document when the document is inserted into the carriage. Because the origin detection element moves out of the path of the document, even long documents, such as, for example, long strips of film containing multiple frames, can be read by the image input device without increasing the size of the carriage or of the image input device. The origin detection element includes a tapered edge that functions as a contrast marker. When the edge is located in the path of the light between the illumination source and the image reading device, the edge can be used to cause the generation of a signal by the image reading device to enable the detection of the point of origin of the carriage in the secondary scanning direction and/or in the focusing direction.
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patent: 5109288 (1992-04-01), Moriya
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Aikawa Toshiya
Maeda Eisaku
Ochiai Toru
Suzuki Maki
Tazawa Masashi
Nikon Corporation
Vu Kim
Williams Kimberly A.
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