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:
Jun. 25, 1991
Filed:
Dec. 27, 1989
Gene R Franklin, Kitchener, CA;
Benedict C Ho, Waterloo, CA;
NCR Corporation, Dayton, OH (US);
Abstract
A method for locating the start of a MICR character in E13B font so as to facilitate character recognition. A Calculated Character Start Position (CCSP) is generated by using a predetermined number of voltage samples corresponding to a portion of MICR waveform generated by reading a MICR character on a document. The CCSP is generated by averaging the predetermined number of voltage samples within the window which tends to minimize the harmful effects of noise. Noise from magnetic ink spatter is sometimes wrongly interpreted as the start of a character. A process of 'jiggling' is used to assist character recognition techniques by utilizing different character start positions to determine whether or not a template match in character recognition techniques occurs when the new or different character start position is used. Dynamic thresholding is used to avoid false starts or 'ringing' due to an immediately previous character which was read having a high intensity waveform compared to the normal intensity expected. The method also employs a technique of having a variable starting point for the search for the start of the next character, with the variable starting point being based on the character just recognized.