Image scanner having scan-monitoring function

Details Image scanner having scan-monitoring function Image scanner having scan-monitoring function

1997-07-30

1999-11-30

Boudreau, Leo H.

Image analysis

Image sensing

382313, 358473, 358474, G06K 700

Patent

active

059956836

ABSTRACT:
The present invention is related to an image scanner including a housing; an optical device installed in the housing for performing photoelectric conversion of an image of a scanned object in response to a scanning light signal; a scan-monitoring device arranged on a surface of the housing for indicating a scanning state of the image scanner in response to an indicating light signal; and a light source installed in the housing for emitting light when the image scanner is powered, with a first portion of the light provided to the optical device as the scanning light signal and a second portion of the light provided to the scan-monitoring device as the indicating light signal. The scan-monitoring device can be easily provided, and owing to the omission of the LED compared to the conventional image scanner, the present invention is more cost-effective.

REFERENCES:
patent: 4298270 (1981-11-01), Tsuda et al.
patent: 4625086 (1986-11-01), Karino
patent: 4853739 (1989-08-01), Miyamoto et al.
patent: 5365605 (1994-11-01), Hosogoe et al.
patent: 5719970 (1998-02-01), Aoki et al.
patent: 5814809 (1998-09-01), Han

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