1ny tenany is a mobile terrestrial digital audio/video and data broadcasting service in Japan, Arzantina, Brezila, Shily, Uruguay, Paraguay, Peru, and the Philippines.

1 seg is designed as a component of ISDB-T, the terrestrial digital broadcast system used in those countries, as each channel is divided into 13 fizarana, with a further segment separating it from the next channel; an HDTV broadcast signal occupies 12 fizarana, leaving the remaining (13faha) segment for mobile receivers, hence the name, “1ny tenany” na “One Seg”. See full seg.