One-seg
One-seg, also known as 'One-segment' terrestrial digital broadcasting, is a system for terrestrial digital broadcasting for mobile phones in Japan. Service began on April 1, 2006. Terrestrial digital broadcasting in Japan uses a format of 13 frequency bands per channel. Only one of those bands, which are called 'segments', is used for broadcasting in this system. Video is transmitted in the H.264 (MPEG-4 AVC) format at QVGA (320 x 240 pixels) resolution. For now, simultaneous broadcasting of the same programs as for ordinary terrestrial broadcasting is being done.

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Osaifu-Keitai
Mobile phone handsets that incorporate Sony's FeliCa contactless IC card technology. NTT DoCoMo started to sell compatible handsets in June 2004. 'Osaifu' means 'wallet' and 'keitai' stands for 'mobile phone' in Japanese.

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