Abstract: A method for recovering a clock from a serial data stream for use in producing “eye” diagram measurements includes determining an initial recovered clock from the serial data stream based upon transition edges. Time interval error values are then determined as a function of the transition edges and corresponding initial recovered clock times. Time interval error values are interpolated for initial recovered clock times not associated with transition edges to produce a complete set of time interval error values. The complete set of time interval error values are lowpass filtered to produce a filtered set of time interval error values. The clock for the serial data stream is reconstructed from the filtered set of time interval error values.

Abstract: A method and apparatus for measuring inductance. The method and apparatus include processing current and voltage waveform data associated with an inductive device to determine edge and slope parameters for each of a plurality of current waveform data cycles. Furthermore, proportional magnetic flux and proportional magnetic current is determined from the acquired current waveform data and the voltage waveform data proximate determined edge regions of the waveform data. An inductance value of the inductive device may then be calculated from the proportional magnetic flux and proportional magnetic current.