Patent ID: 8599051

Claim:
A time-interleaved A/D converter apparatus, comprising: a primary signal A/D converter circuit group including a combination of N A/D converter circuits operable, with the same resolution as a resolution provided by the entire apparatus, at a sampling rate that is 1/N of a Baud rate of an input analog signal (where N is an integer not less than 2), the primary signal A/D converter circuit group performing time-interleaving operations of the N A/D converter circuits with sampling signals shifted by 1/N so as to convert the input analog signal into N digital signals; a correction signal generation part operable to receive the input analog signal and a 1/m-sampling signal having a speed that is 1/m of a rate of the sampling signal inputted to the primary signal A/D converter circuit group (where m is an integer not less than 2), to extract a dispersion of a transmission line that is immanent in the input analog signal from the input analog signal and the 1/m-sampling signal, and to output the extracted dispersion as a dispersion compensation control signal used for digital signal compensation; and a signal processing part operable to receive the N digital signals and the dispersion compensation control signal, to convert the N digital signals into one digital signal based upon the dispersion compensation control signal, and to compensate a dispersion included in the converted digital signal.