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. 11, 1995
Filed:
Jul. 31, 1992
Stephen J Mercier, Apalachin, NY (US);
Everett G Vail, III, Binghamton, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A circuit reduces the cost of electronic systems that contain integrated circuit chips with test leads by reducing the number of off-module connections required to drive these test leads in the assembled system. Instead of driving each such test lead through an intermodule interconnector, a single MODULE TEST line coming in through the intermodule interconnector is input to a circuit that then drives all chip test leads to an appropriate state in the assembled system, while leaving those test leads in a high-impedance state during test, allowing a module tester to drive them as required by its test program.