TOKYO — NTT Communications, a unit of Nippon Telegraph and Telephone, on Monday said it conducted a successful test of the telecom group’s Innovative Optical and Wireless Network (IOWN) in which singers performed a duet on karaoke machines roughly 3 kilometers apart.
The trial was held jointly with Xing, the Japanese company behind the Joysound karaoke service, in Tokyo. The next-generation IOWN technology replaces electrical signals with light for faster communication.
