Patent ID: 11921158
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. The probe card of claim 10, wherein the first delay control signal generator includes:
a time-to-digital converter configured to generate digital signals corresponding to the phase difference;
an encoder configured to generate a first digital code by encoding the digital signals;
a first accumulator circuit configured to generate a first output digital code by receiving and accumulating the first digital code;
a right shifter configured to determine whether to shift the first digital code to the right by one bit, depending on a first control signal;
a second accumulator circuit configured to generate an accumulation digital code by receiving and accumulating a second digital code output from the right shifter and to generate a second output digital code by subtracting the accumulation digital code from the first output digital code; and
a selection circuit configured to output one of the first output digital code and the second output digital code as the first delay control signal depending on a second control signal.