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:
Jul. 04, 1989
Filed:
Jun. 20, 1988
Applicant:
Inventors:
Benedict C Ho, Waterloo, CA;
Gene R Franklin, Kitchener, CA;
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235449 ; 235463 ;
Abstract
A method and system for use in reading magnetic characters comprised of bars and intervals dimensioned as short intervals or long intervals as is done in CMCs7 encoding. The interval between adjacent bars of a character is obtained by calculating the zero crossing point between a peak of a first polarity and a peak of a second polarity associated with a 'bar' in the associated scanning signal. The zero crossing point may be compared to the midpoint of the associated 'bar'. The intervals are then determined by obtaining the distance or interval between the zero crossing points of adjacent 'bars'.