ALEXANDRIA, Va., May 12 -- United States Patent no. 12,627,323, issued on May 12, was assigned to NTT Inc. (Tokyo).

"Signal generation apparatus, signal generation method, and computer program" was invented by Masanori Nakamura (Musashino, Japan), Hiroshi Yamazaki (Musashino, Japan), Munehiko Nagatani (Musashino, Japan), Fukutaro Hamaoka (Musashino, Japan), Takayuki Kobayashi (Musashino, Japan) and Yutaka Miyamoto (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal generation device that includes a digital signal processing unit, a plurality of digital-analog conversion units that respectively converts a plurality of digital signals output from the digital signal processing unit into an...