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US 10,798,264 B2Granted
Image scanning apparatus and method for scanning thereof
AssigneeHewlett-Packard Development Company, L.P.
InventorKyoungrok Kim
Life of this patent
Estimating the term…
Abstract
An example image scanning apparatus includes a lighting unit to irradiate light onto a manuscript using an LED light source, a scan unit to generate a scan image by scanning image information of manuscript using light reflected by the manuscript, and a processor to control the lighting unit to irradiate light on each unit pixel by a predetermined duty during a movement process of the manuscript in a sub-scan direction.
Claims17
An image scanning apparatus, comprising:
- a lighting unit to irradiate a light onto a manuscript using a light emitting diode (LED) light source;
- a scan unit to generate a scan image by scanning image information of a manuscript using light reflected by the manuscript;
- and
- a processor to control the lighting unit to irradiate the light onto the manuscript for a predetermined duty of a line exposure time during a movement process of the manuscript in a sub-scan direction,
- wherein no light is irradiated onto the manuscript for a remainder of the line exposure time after the predetermined duty of the line exposure time.
2 more elements
A method for image scanning, the method comprising:
- irradiating light onto a manuscript for a predetermined duty of a line exposure time during a movement process of the manuscript in a sub-scan direction using a light emitting diode (LED) light source;
- scanning image information of the manuscript using light reflected by the manuscript;
- and
- generating a scan image,
- wherein no light is irradiated onto the manuscript for a remainder of the line exposure time after the predetermined duty of the line exposure time.
2 more elements
Dependencies are inferred from the claim text.