公开(公告)号：US10097714B2

公开(公告)日：2018-10-09

申请号：US15519860

申请日：2014-10-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Wesley R Schalk ,  Al Olson ,  Justin M Roman ,  Jeffrey G Bingham ,  Dennis Schissler ,  Andrew T Davis

IPC: G06F3/12 ,  H04N1/00 ,  H04N1/031 ,  H04N1/12

Abstract: In one example, a document scanner has a fixed-position scan bar and a built-in translatable calibration target. The scan bar has a linear array of imaging elements aimed in an imaging direction. The calibration target is spaced apart from and parallel to the linear array, and has a planar surface orthogonal to the imaging direction spanning the length of the linear array. The target is translatable during a calibration in a direction in a plane of the surface.

公开(公告)号：US20170318173A1

公开(公告)日：2017-11-02

申请号：US15519860

申请日：2014-10-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Wesley R Schalk ,  Al Olson ,  Justin M Roman ,  Jeffrey G Bingham ,  Dennis Schissler ,  Andrew T Davis

IPC: H04N1/00 ,  H04N1/031 ,  H04N1/12

CPC classification number: H04N1/00819 ,  H04N1/00018 ,  H04N1/00029 ,  H04N1/00045 ,  H04N1/00082 ,  H04N1/00087 ,  H04N1/028 ,  H04N1/03 ,  H04N1/0312 ,  H04N1/04 ,  H04N1/1017 ,  H04N1/1225 ,  H04N5/367 ,  H04N2201/0081 ,  H04N2201/02497 ,  H04N2201/0404 ,  H04N2201/0448

Abstract: In one example, a document scanner has a fixed-position scan bar and a built-in translatable calibration target. The scan bar has a linear array of imaging elements aimed in an imaging direction. The calibration target is spaced apart from and parallel to the linear array, and has a planar surface orthogonal to the imaging direction spanning the length of the linear array. The target is translatable during a calibration in a direction in a plane of the surface.