Patent ID: 7956617

Claim:
An improved system for testing risk of failure of an electronic circuit of the type that generates at least one output signal influenced during processing by the electronic circuit to be tested, the improvement comprising: a memory means operationally connected with a comparator block circuit and for retaining stored historical testing data for the electronic circuit to be tested, the stored testing data capable of being accessed as desired; and, a comparator block circuit means electrically connected with the electronic circuit to be tested for receiving the at least one output signal from the electronic circuit to be tested and the stored testing data from the memory means; the comparator block circuit including means for generating an output signal resulting from applying desired comparison criteria to the output signals from the electronic circuit to be tested in view of the stored testing data retrieved from the memory means for determining whether performance of the electronic circuit to be tested has changed over time and the risk of failure of the electronic circuit to be tested.