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:
May. 28, 1991
Filed:
Oct. 10, 1989
Applicant:
Inventors:
Robert D'Aoust, Detroit, MI (US);
David C Williams, Ann Arbor, MI (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382 61 ; 382 57 ; 382 54 ; 382 50 ; 382 51 ;
Abstract
Apparatus for detecting a dimension of a generally rectangular document in a system where the document is carried over a track to a station where the document is scanned by a sensor to create a digital image thereof. Pixel vales along a scan line which includes a portion of the track as well as the document are analyzed and provide an indication of the size of the document.