Title:
HANDY SCANNER APPARATUS AND CONTROL METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/074810
Kind Code:
A2
Abstract:
The present invention relates to a handy scanner apparatus and a control method thereof, which scan the surface of the object under scan, larger than a scanner, into units of two-dimensional tile images each of which has a predetermined size, and synthesize the photographed images in accordance with shift information into final page images. Particularly, a scan unit comprises: a transparent window portion which forms an area of tile images to be scanned; a housing portion which prevents the introduction of light from an external source; a camera module which maintains a fixed optical distance from the object under scan, and photographs tile images; a lighting module which provides light only during a preset time in accordance with a lighting signal; and a shift sensing module which outputs shift information. According to the present invention, the surface of the object under scan is scanned by units of two-dimensional tile images in which positions of pixels are physically fixed, to thereby achieve improved accuracy of positions of pixels. According to the present invention, the number of arithmetic operations required for image synthesis is reduced, thus enabling high speed signal processing, and the bottom surface of the housing portion can approach closely to the scanning area, thus maximizing a scannable area.
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Inventors:
LEE MYOUNG-SOOL (KR)
Application Number:
PCT/KR2010/008630
Publication Date:
June 23, 2011
Filing Date:
December 03, 2010
Export Citation:
Assignee:
LEE MYOUNG-SOOL (KR)
International Classes:
G06K7/10
Foreign References:
| KR20090077507A | 2009-07-15 | |||
| KR20080050067A | 2008-06-05 | |||
| US5602379A | 1997-02-11 | |||
| KR100759869B1 | 2007-09-18 |
Attorney, Agent or Firm:
KOREANA PATENT FIRM (KR)
특허법인 코리아나 (KR)
특허법인 코리아나 (KR)
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