US Patent Issued to Altera on June 10 for "Systems and methods for supporting both pulse amplitude modulation and quadrature amplitude modulation" (California Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,219, issued on June 10, was assigned to Altera Corp. (San Jose, Calif.).

"Systems and methods for supporting both pulse amplitude modulation and quadrature amplitude modulation" was invented by Masashi Shimanouchi (San Jose, Calif.), Hsinho Wu (Santa Clara, Calif.) and Peng Li (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and devices are provided for receiving or transmitting IQ data (e.g., suitable for passband quadrature amplitude modulation (QAM)) over a wireline using pairs of baseband pulse amplitude modulation (PAM-n) signals. Encoding circuitry may map data from an input bit stream to IQ data that includes an in-ph...