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US 2002/0171877 A1Published application
Bi-directional flatbed scanning and automatic document feed
AssigneeHewlett-Packard Development Company, L.P.
InventorsPaul K. Mui, Russell A. Mendenhall
Life of this patent
Estimating the term…
Abstract
A method for scanning successive images including the steps of scanning a first image bearing media employing a top to bottom scan direction and scanning a second image bearing media employing a bottom to top scan direction.
Claims8
A method of scanning an object including the steps of:
- moving a first scanline relative to the object in a top to bottom scan direction;
- indexing a plurality of cross linear samplings in a forward sequential order;
- moving a second scanline relative to the object in a bottom to top scan direction;
- and
- indexing a plurality of cross linear samplings in a reverse sequential order.
2 more elements
A method of scanning image bearing media with an optical scanning device including the steps of:
- scanning a first image bearing media in a top to bottom scan direction;
- indexing a plurality of cross linear samplings in a forward sequential order;
- scanning a second image bearing media in a bottom to top scan direction;
- and
- indexing a plurality of cross linear samplings in a reverse sequential order.
2 more elements
A method of scanning image bearing media with a flatbed optical scanning device including the steps of:
- feeding a first image bearing media from an automatic document feeding device to a flatbed scanning device;
- scanning the first image bearing media in a top to bottom scan direction;
- indexing a plurality of cross linear samplings in a forward sequential order;
- feeding a second image bearing media from the automatic document feeding device to the scanning device;
- scanning the second image bearing media in a bottom to top scan direction;
- and
- indexing a plurality of cross linear samplings in a reverse sequential order.
4 more elements
An optical scanning device for producing machine-readable data representative of an object comprising:
- a scanner controller;
- a transport assembly connected to the scanner controller for moving a scanline relative to the object in a top to bottom scan direction followed by moving the scanline relative to the object in a bottom to top scan direction;
- an imaging assembly connected to the scanner controller and operable in successive sampling intervals for generating a plurality of cross linear samplings image data representative of the object;
- an automatic document feeder connected to the scanner controller and operable in response to the scanner controller;
- a processing device responsive to a scan direction travel limit for selectively indexing a plurality of cross linear samplings in a forward sequential order;
- and
- a processing device responsive to a scan direction travel limit for selectively indexing a plurality of cross linear samplings in a reverse sequential order.
4 more elements
Dependencies are inferred from the claim text.