Patent ID: 11921158
Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. The probe card of claim 10, wherein the first edge-to-pulse converter includes:
a high pass filter configured to perform high pass filtering on the first TDR waveform;
an amplifier configured to amplify an output signal of the high pass filter and to detect the first edge;
a buffer configured to buffer an output signal of the amplifier;
a D-flip-flop including an input terminal, an output terminal, an inversion output terminal, and a clock terminal, and configured to transfer a signal of the input terminal to the output terminal in response to an output signal of the buffer input to the clock terminal;
a delay circuit configured to receive an output signal from the inversion output terminal of the D-flip-flop; and
an AND gate configured to generate the first start pulse signal based on an output signal from the output terminal, an output signal from the delay circuit, and a control signal.