Patent ID: 11959963
Assignee: APTIV TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 19:
20. A test device comprising:
at least one processor configured to:
receive, from an analog path of a device under test, an analog response, a portion of the analog response corresponding to a first test signal that has been introduced into a digital transmission that has been propagated along a digital path of the device under test and converted to analog to form the analog response;
receive a second test signal that is formed by the test device based on a test generation function that is also used, by the device under test, to generate the first test signal;
compensate the second test signal using a linear transfer function of a combination of the digital path and an analog path of the device under test to produce an estimated test signal;
determine whether the estimated test signal is identifiable from the analog response; and
output an indication of whether any errors have been introduced by the digital path of the device under test based on whether the estimated test signal is identifiable from the analog response.