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:
Nov. 09, 1993
Filed:
Dec. 04, 1990
Applicant:
Inventor:
Kenneth E Posse, Ft. Collins, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G06F / ;
U.S. Cl.
CPC ...
371 223 ; 371 151 ;
Abstract
An apparatus for diagnosing faults in a device equipped with boundary-scan test capability stores serial test data upon detection of a fault in a device under test (DUT). Test data corresponding to a frame vector associated with the fault is formatted so that all information from parallel tester inputs and TAP scan registers can be simultaneously analyzed. A method for diagnosing faults is also disclosed.