US Patent Issued to FUJITSU on Sept. 30 for "Mismatch error calibration method and apparatus of a time interleaving digital-to-analog converter" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,912, issued on Sept. 30, was assigned to FUJITSU Ltd. (Kawasaki, Japan).

"Mismatch error calibration method and apparatus of a time interleaving digital-to-analog converter" was invented by Ke Zhang (Beijing) and Zhenning Tao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mismatch error calibration method and apparatus of a time interleaved digital-to-analog converter. The method includes: sampling an output signal of a time interleaved digital-to-analog converter to obtain a measurement signal; preprocessing the measurement signal to obtain a preprocessed measurement signal; and estimating a coefficient of a digital impairment equalizer...