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, 1986
Filed:
Aug. 14, 1984
Applicant:
Inventors:
Ali T Mazumder, Waterloo, CA;
Armand M Dumas, Kitchener, CA;
Assignee:
NCR CANADA LTD.-NCR CANADA LTEE, Mississauga, CA;
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235463 ; 235436 ; 235466 ;
Abstract
A plurality of vertically aligned sensing members scan a matrix type bar code on a document. During the scanning of the bar code, the time period between the detection of succeeding bars is determined. An average time period which occurs during the detection of a number of bars is then generated. Each succeeding time period generated as a result of detecting the next bar is divided by the average time period to determine the presence or absence of the bar in addition to the number of spaces preceding the detected bar. This information is used in decoding the bar code label.