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:
Apr. 18, 1989
Filed:
Apr. 17, 1987
Rodney K Guthmueller, Lewisville, TX (US);
Richard K Habitzreiter, Dallas, TX (US);
Recognition Equipment Incorporated, Irving, TX (US);
Abstract
A Bar Code Reader of a Video Processor Unit receives video data from a scanner and processes it to locate a bar code at the bottom of a document which represents a postal zip code. The scanner generates an array of cells of video data and provides each cell with a gray weight value corresponding to a detected blackness level of a small portion of the scanned document. The Bar Code Reader moves a template mask over the array and calculates area sums of gray weight values for cells within predetermined areas of the template mask. The area sums are used to compute Bar scores for determining the presence and position of tall and short bars in a bar code field. The positions of the tall and short bars in the bar code field are translated into postal zip code information.