Image analysis – Image sensing – Hand-held
Patent
1997-09-12
1999-08-17
Vu, Kim Yen
Image analysis
Image sensing
Hand-held
358473, H04N 124
Patent
active
059405465
ABSTRACT:
Apparatus for scanning an image comprising a manually-operated scanning device with a photoelectric source and having a light tunnel extending from the photoelectric source to a side of the manually-operated scanning device. The scanning device with light tunnels offers high contrast edges and encourages proper alignment of the image being scanned. In one embodiment, the scanning device has a light tunnel extending from each vertical side corresponding to and illuminating the horizontal axis to be scanned. In another embodiment, the scanning device has, in addition to light tunnels illuminating the horizontal axis, light tunnels extending from the front or horizontal side of the scanning device to illuminate the vertical boundary that is scanned by the scanning device. The light tunnels in the invention provide the user with a highly visible reference of exactly where the manually-operated scanning device's scan window is located at a particular instance.
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patent: 4772954 (1988-09-01), Shin et al.
patent: 4800444 (1989-01-01), Suzuki et al.
patent: 5301243 (1994-04-01), Olschafskie et al.
patent: 5365605 (1994-11-01), Hosogoe et al.
patent: 5686720 (1997-11-01), Tullis
Apple Computer Inc.
Lee Cheukfan
Vu Kim Yen
LandOfFree
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