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:
Mar. 25, 2003
Filed:
Sep. 24, 1999
Applicant:
Inventor:
William L. Kozlowski, Novi, MI (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 ; G06K 9/40 ;
U.S. Cl.
CPC ...
G06K 9/00 ; G06K 9/40 ;
Abstract
A method reduces stepper motor noise in a MICR document waveform resulting from CMC7 information. The method includes the steps of creating a motor noise profile from the document waveform, and creating a working sample waveform from the document waveform. The method further includes the step of applying the motor noise profile to the working sample waveform to reduce stepper motor noise. The method also periodically realigns the motor noise profile with the working sample waveform. Thus, the invention allows reduction of stepper motor noise without requiring relocation of the motor or additional shielding.