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:
Sep. 09, 2003
Filed:
May. 02, 2002
Wolfgang Ernst, Munich, DE;
Gunnar Krause, Munich, DE;
Peter Poechmueller, Colchester, VT (US);
Justus Kuhn, Munich, DE;
Jens Luepke, Munich, DE;
Jochen Mueller, Munich, DE;
Michael Schittenhelm, Poing, DE;
Infineon Technologies AG, Munich, DE;
Abstract
Test circuit for testing a circuit to be tested, having a test data generator, which generates test data in a manner dependent on data control signals which are received via data control lines from an external test unit, a data output driver for outputting the generated test data via data line pairs of a differential data bus to the circuit to be tested, a data input circuit for receiving data that are read from the circuit to be tested and transmitted via the data line pairs of the differential data bus, a data comparison circuit, which compares the generated data and the read-out data and, in a manner depend at on the comparison result transmits an indication signal, which indicates whether the circuit to be tested is functional, to the external test unit via an indication signal line.