Patent ID: 9252748
Filing Date: 2016-02-02
CPC Classification: G01R,H03K

Claim Text:
1. A circuit comprising: a differentiator configured as a high impedance probe to capture an input signal waveform from a high-speed circuit, the differentiator having a high-pass filter configured to sense edges of the input signal waveform, wherein the high-pass filter has a cut-off frequency higher than a fundamental frequency of the input signal waveform, wherein the input signal waveform is a digital signal formatted according to a Universal Serial Bus (USB) Protocol, wherein the high-speed circuit is a channel of a high-speed inter-chip (HSIC) USB, wherein the circuit provides approximately no load to the HSIC channel below 100 MHz; and a dual-slope comparator/driver coupled to the differentiator and configured to respond to the edges of the input signal waveform, the dual-slope comparator/driver configured to respond to the edges to drive dual differential signal pairs.