US Patent Issued to Apple on Aug. 12 for "Piecewise linear digital-to-analog converter circuit" (German, American Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,455, issued on Aug. 12, was assigned to Apple Inc. (Cupertino, Calif.).

"Piecewise linear digital-to-analog converter circuit" was invented by Nicola Rasera (Munich), Cristian Grecu (Munich), Bogdan-Eugen Matei (Munich), Fabio Ongaro (Unterhaching, Germany) and Ming Sun (Santa Clara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piecewise linear current-mode digital-to-analog converter circuit approximates an exponential output current over a range of input codes by generating linearly varying currents with different slopes of different ranges of the input codes. The piecewise linear current-mode digital-to-analog converter circuit include...