Patent ID: 6397353
Filing Date: 2002-05-28
Classification: G06F,G11C

Abstract:
A system for testing a hardware unit containing sensitive information, said system comprising:a test station having a programmed processor, generating equipment which generates pseudo test signals, and measuring devices which measure the response of the hardware unit to actual test signals, said test station containing a test program from which the contents of the sensitive information cannot be ascertained and a run-time program that interprets the test program to generate encoded commands for carrying out the test; and an interface circuit interposed between said test station and the hardware unit which interface circuit receives the encoded commands and the pseudo test signals from the test station, decodes the encoded commands to generate the actual test signals for the hardware unit containing the sensitive information, routes the actual test signals to the hardware unit under test, receives the response of the hardware unit, encodes it, and sends it to the test station for interpretation.