Handy scanner having scanning path straightness-maintaining mech

Details Handy scanner having scanning path straightness-maintaining mech Handy scanner having scanning path straightness-maintaining mech

1997-02-03

1999-01-19

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, 358473, 358497, H01J 314, G06K 922

Patent

active

058616225

ABSTRACT:
A handy scanner for scanning an image by user hand-held operation along the surface of a sheet of document is disclosed. The scanner includes an illumination light source for illuminating the image for scanning, an image pick-up mechanism receiving the light reflected from the image illuminated to be scanned, and converting the received light into an image electrical signal, a moving mechanism used for conducting movement of the scanner over the surface of the image, a position detector coupled to the moving mechanism for detecting the position of the apparatus over the image surface, an electronic circuitry coupled to the image pick-up mechanism and the position detector used for receiving the image electrical signal and the position electrical signal respectively and processing them, and a scanning path straightness-maintaining mechanism used for assisting to constrain scanning movement of the scanner in an intended straight line for achieving optimized scanning effect. User fatigue can therefore be reduced due to simplified effort for maintaining straight line scanning under the assistance of the straightness mechanism.

REFERENCES:
patent: 5182450 (1993-01-01), Pan
patent: 5412205 (1995-05-01), McVicar et al.

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