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. 03, 1994
Filed:
Oct. 18, 1991
Applicant:
Inventors:
Ignazio Barraco, Cambs., GB;
James Bradshaw, Lincs., GB;
Assignee:
Crosfield Electronics Limited, Stevenage, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
36457101 ; 348180 ;
Abstract
Test equipment, for testing that an image processing apparatus is operating correctly, is coupled to the output port of the image processing apparatus. A predetermined group of signals corresponding to a portion of an image from the image processing apparatus is stored in a memory in the test equipment. The signals are then analysed either by an operator using a monitor or by electronic comparison of the signals with reference signals corresponding to the portion of the image, from a reference store.