History and Future of Broadcast Technologies at NHK Kenji Nagai General Managing Director Executive Director-General of Engineering Japan Broadcasting Corporation December 7, 2009 1 1

Purpose of NHK -The Broadcast Act- Article 7 (Purpose) The purpose of NHK is to conduct the domestic broadcasting of, or to entrust the broadcasting of, enriched and high quality broadcast programs for the public welfare in such a manner that the broadcasting may be received all over Japan, to conduct business necessary for the improvement and development of broadcasting and the reception thereof, and to conduct international broadcasting and NHK’s international broadcast programming operations. Article 9 (Business) (5) NHK shall make arrangements to ensure that either medium frequency broadcasting or very high frequency broadcasting and television broadcasting can be received all over Japan. (1) NHK shall conduct the following business for the accomplishment of the purpose mentioned in Article 7: (iii) To conduct research and investigation necessary for the improvement and development of broadcasting and the reception thereof, 2 2

Progress of Broadcast Technology in Japan Terrestrial Digital Broadcasting Digital Sound Broadcasting Satellite Digital Broadcasting ２００６ B-SAT/LMCSS 提供 ２００３ HDTV Broadcasting (8 hours/day) ２０００ One-Seg Service １９９５ １９９１ Experimental Satellite Broadcasting １９８９ Start of R&D on Super Hi-Vision １９８６ １９８４ Start of R&D on Satellite Broadcasting Experimental HDTV Broadcasting (1 hour/day) １９６９ １９６６ Educational Television Broadcasting １９６４ Start of R&D on Terrestrial Digital Broadcasting Television Broadcasting １９５９ FM Broadcasting １９５３ Radio Broadcasting Start of R&D on HDTV １９３１ １９３０ Radio2 １９２５ Foundation of NHK STRL 3 3

R&D on Television System -Past and Future- TV-lines 3D TV based on Spatial Imaging Technology 1995 2025 Super Hi-Vision (UHDTV) R&D Start of Service 4320 1964 2000 Hi-Vision (HDTV) 1080 R&D Start of Service 1954(NTSC) 625/525 SDTV 1967(PAL) Baird (UK) R&D Takayanagi (Japan) 1920 1960 1980 2000 2020 4 4

Super Hi-Vision System Super Hi-Vision has extremely high spatial resolution, 33 million pixels per frame, and it can provide viewers with stunning images. Various parameters other than spatial resolution is under investigation now. The wide visual angle of 100 degrees provides viewers with an immersive feeling. The purpose of Super Hi-Vision to home is to provide a totally new viewing experience to enjoy wide and extremely high resolution images from any viewing distance. 7680 4320 Viewing distance : 0.75 x Picture height Viewing angle : 100 degrees

International Collaboration on Super Hi-Vision IBC 2008 (Amsterdam) NAB 2009 (Las Vegas) Received “Special Award” for the world’s first international transmission of Super Hi-Vision signal Received “Technology Innovation Award” for development of new media technologies 6 6

3D TV based on Spatial Imaging -Integral Method- Business interests in Stereoscopic 3D television system are increasing in various industries worldwide. However, discrepancy between the convergence point and the focal point causes visual fatigue. Spatial imaging system does not cause visual fatigue nor requires special glasses, because an object is reconstructed as a spatial image (light field). Upper Viewpoint Right Viewpoint Left Viewpoint Lower Viewpoint Display Device Object reconstructed as a spatial image Reconstruction of light Viewer Image’s appearance changes as the viewer’s position moves Integral 3D Imaging System 7 7 7