Method and measurement instrument for testing a device under test
AssigneeRohde & Schwarz GmbH & Co. KG
InventorsKevin Guo, Hong Jin Kim
Life of this patent
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Abstract
The present invention relates to a method for testing a device under test. A component of the device under test generates or receives a bus signal, wherein the bus signal comprises a first data signal or a second data signal, and wherein an amplitude of the first data signal is different from an amplitude of the second data signal. A measurement instrument measures an amplitude of the bus signal. Further, it is determined whether the bus signal comprises the first data signal or the second data signal, based on the measured amplitude of the bus signal.
Claims14
A method for testing a device under test, the method comprising:
- generating or receiving, by a component of the device under test, a bus signal, wherein the bus signal comprises a first data signal or a second data signal, and wherein an amplitude of the first data signal is different from an amplitude of the second data signal;
- measuring, by a measurement instrument, an amplitude of the bus signal;
- comparing the measured amplitude of the bus signal with a threshold value;
- and
- determining whether the bus signal comprises the first data signal or the second data signal, based on the measured amplitude of the bus signal, wherein, if the measured amplitude is larger than the threshold value, it is determined that the bus signal comprises a data signal of the first data signal and the second data signal having a larger amplitude.
A measurement instrument, in particular an oscilloscope, for testing a device under test, wherein a component of the device under test generates or receives a bus signal, wherein the bus signal comprises a first data signal or a second data signal, wherein an amplitude of the first data signal is different from an amplitude of the second data signal, the measurement instrument comprising:
- a measurement unit, configured to measure an amplitude of the bus signal;
- and
- a determining unit, configured to compare the measured amplitude of the bus signal with a threshold value and to determine whether the bus signal comprises the first data signal or the second data signal, based on the measured amplitude of the bus signal;
- wherein the determining unit is configured to determine, if the measured amplitude is larger than the threshold value, that the bus signal comprises a data signal of the first data signal and the second data signal having a larger amplitude.
Dependencies are inferred from the claim text.