Patent ID: 11959937
Assignee: KEITHLEY INSTRUMENTS, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A system for measuring a device under test, comprising:
a test and measurement instrument coupled to at least one triaxial cable, the test and measurement instrument configured to output a first voltage on a first conductor of the at least one triaxial cable and to output a second voltage on a second conductor of the at least one triaxial cable; and
a module coupled to the test and measurement instrument by the at least one triaxial cable, the module configured to change a mode based on the first voltage and the second voltage;
a power supply configured to receive the first voltage and the second voltage and generate a constant voltage supply based on a voltage differential between the first voltage and the second voltage; and
a signal decoder configured to receive the constant voltage supply and monitor the first voltage relative to the second voltage to determine a command code for changing modes.