The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2013
Filed:
Jul. 26, 2010
Applicant:
Miguel Angel Lopez, Terrassa Barcelona, ES;
Inventor:
Miguel Angel Lopez, Terrassa Barcelona, ES;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/028 (2006.01); H04N 1/047 (2006.01); H04N 1/48 (2006.01); H04N 1/56 (2006.01); H04N 1/12 (2006.01); H04N 1/409 (2006.01); H04N 1/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for detecting roller eccentricity in a CIS scanner is disclosed. An image of a target is captured using the CIS scanner. The image of the target is analyzed for periodic horizontal banding. The period of the periodic horizontal banding is compared with the circumference of a pressure roller in the CIS scanner. When the period matches with the circumference of the pressure roller, an error is set.