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US 2013/0003144 A1Published application
Portable ccd contact scanner
OwnerDean Finnegan, Jerry Chung-Hung Cheninventors
Life of this patent
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Abstract
A hand-held, portable, contact scanner using CCD scanning technology in conjunction with power regulation, noise reduction and image stitching. The scanner uses various movement tracking technologies to determine when the scanner is in contact with a document to be scanned. A dual roller system is used to effectively track motion of a contact scanner 100 across a target document. Alternatively, movement detection is performed by a reflected laser or infra-red (IR) output.
Claims12
A portable contact image scanner, comprising:
- a housing;
- a contact image sensor including charge-coupled device (CCD) array, an LED illumination source and optics directing LED illumination to a target image mounted in the housing;
- a processing device including instructions providing a de-noising algorithm and an image stitching algorithm, the processing device mounted on a printed circuit board within the housing;
- a motion detector mounted in the housing comprising a photo detector and an illumination source positioned to detect the motion of the target document relative to the image scanner;
- a power source coupled to the contact image sensor, printed circuit board and motion detector;
- wherein the printed circuit board includes a power routing structure for a series of power conductors on the printed circuit board which reduces power noise effects on the CCD output.
3 more elements
A portable contact image scanner, comprising:
- a scanner housing including a printed circuit board;
- a charge-coupled device (CCD) coupled to an array controller, the controller coupled to an LED illumination source,
- optics directing LED illumination to a target document, the optics mounted in the scanner housing;
- a processing device receiving an output from the CCD and including instructions providing a de-noising algorithm and an image stitching algorithm, the processing device mounted on the printed circuit board within the housing;
- at least two rollers contacting the target document;
- a motion detector mounted in the housing comprising a photo detector and an illumination source positioned to detect the motion of the target document relative to the image scanner;
- a power source coupled to the CCD, printed circuit board and motion detector;
- wherein the printed circuit board includes a power routing structure for a series of power conductors on the printed circuit board which reduces power noise effects on the CCD output.
5 more elements
Dependencies are inferred from the claim text.