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. 19, 2005
Filed:
Aug. 12, 2002
Alexander Sebastian Biewenga, Eindhoven, NL;
Leon Albertus Van DE Logt, Eindhoven, NL;
Franciscus Gerardus Maria DE Jong, Eindhoven, NL;
Guillaume Elisabeth Andreas Lousberg, Eindhoven, NL;
Alexander Sebastian Biewenga, Eindhoven, NL;
Leon Albertus Van De Logt, Eindhoven, NL;
Franciscus Gerardus Maria De Jong, Eindhoven, NL;
Guillaume Elisabeth Andreas Lousberg, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An integrated circuit is switchable between a normal operating mode and a test mode. A functional circuit and a test pattern converter are both coupled between input contacts, output contacts and a redefinable contact of the integrated circuit. In the test mode respectively the test pattern converter drives the outputs contacts and, dependent on the circuit configuration, the redefinable contact. The test pattern converter is arranged to provide a first and second relation between signals at the input contacts and the output contacts, with the redefinable contact used as an input or output contact respectively, dependent on the circuit configuration. The relations have been selected so as to permit testing of stuck-at and cross-connect errors with the redefinable contact used as input and output contact respectively.