1شريحة is a mobile terrestrial digital audio/video and data broadcasting service in Japan, الأرجنتين, البرازيل, تشيلي, أوروغواي, باراغواي, بيرو, and the Philippines.

1 seg is designed as a component of البنك الإسلامي للتنمية-T, the terrestrial digital broadcast system used in those countries, as each channel is divided into 13 شرائح, with a further segment separating it from the next channel; an HDTV broadcast signal occupies 12 شرائح, leaving the remaining (13العاشر) segment for mobile receivers, ومن هنا الاسم, “1شريحة” أو “واحد SEG”. See full seg.