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. 11, 1982
Filed:
May. 24, 1979
Applicant:
Inventors:
Hans Reiner, Gerlingen, DE;
Werner Auth, Stuttgart, DE;
Assignee:
ITT Industries, Incorporated, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 / ; 324 / ; 371 21 ;
Abstract
A monolithically very large scale integrated circuit (VLSI) having any arbitrarily given structure and an internal test circuit only requiring one, two or three additional outer terminals wherein the test circuit is integrated therein. In one embodiment the test circuit contains a counter and a combinational circuit interconnected with the counter reading outputs thereof as well as selection switches associated with test points and where the first of the additional terminals is connected to the counting input of the counter.