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Home Server/Network Systems tow a rd Digital Broadcasting

Home Server/Network Systems tow a rd Digital Broadcasting. Keiichi Murakami FUJITSU Laboratories TA8/TC100/IEC. TC100 : Audio, video and multimedia equipment and systems . (Established in 1995) . TC100. Chairman Secretariat. AGS. Advisory Group on Strategy.

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Home Server/Network Systems tow a rd Digital Broadcasting

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  1. Home Server/Network Systems toward Digital Broadcasting Keiichi Murakami FUJITSU Laboratories TA8/TC100/IEC

  2. TC100 : Audio, video and multimedia equipment and systems (Established in 1995) TC100 Chairman Secretariat AGS Advisory Group on Strategy Advisory Group on Mngmnt AGM GMT TA Project General Maintenance Team Technical Area : corresponds to SC

  3. Title of each TA TA1: Terminals for audio, video and data services TA2: Colour measurement and management TA4: Digital system interfaces and protocols TA5: Cable networks for television signals, sound signals and interactive services TA6: Higher data rate storage media, data structures and equipment TA7: Moderate data rate storage media, equipment and systems TA8: Multimedia home server systems

  4. TA8: Multimedia home server systems • Established in May, 2002 • Background: • Growing Terrestrial Digital TV Broadcast • Growing PVR (Private Video Recorder) • Homeserver-based Broadcast Service Introduction • Activities up to now: • U Conceptual Model of Homeserver • DF-based removable recording format • API for removable media • DRM (Newly started)

  5. Home Server Digital TV Broadcast Server Cable/DSL/FTTH ISP Server Homeserver-based Broadcast Services • Store contents in a large capacity storage • Access control at the time accessing the stored contents, including DRM • Sophisticated services using Meta Data,EPG, and/or uplink access channel

  6. TA8’s Homeserver Conceptual Model API Head End CNTRL In-house Network IF CNTRL Interchangeable Storage Media Port CNTRL User IF CNTRL Functional Modules High Capacity Storage CNTRL Contents CNTRL

  7. Digital TV Services in US • Satellite: ’94- DirecTV, USSB • Terrestrial: ’98- top four & PBS • ATSC (Terrestrial) • 18 video format including SD & HD • DASE: multimedia broadcasting using XHTML, CSS, Java • Anti-piracy mechanism (FCC, ’05-) • Broadcast flag, no encryption • Private copy will not be restricted

  8. Digital TV Services in Europe • Satellite: ’96- Germany, France, ’98- GBR • Terrestrial: ’98- GBR, ’99- Sweden,… • DVB-S (Satellite), DVB-T (Terrestrial) • Video format is not provided Mainly SDTV is available today. • EPG, Service information (DVB-SI) • Conditional access (DVB-CI) • Multimedia middleware (DVB-MHP)

  9. Digital TV Services in JAPAN • 1996- Satellite2003- Terrestrial • ISDB-S (Satellite), ISDB-T (Terrestrial) • HDTV or SDTV multi program • BML Data Broadcasting • Bidirectional services via the internet • Contents protection by B-CAS (’04-) • Encrypt contents • Restrict copy up to once

  10. Roadmap for Diffusion of Terrestrial DTV set in JAPAN % Percentage of households owning DTV set 100 48,000,000 households 80 24,000,000 households 60 40 10,000,000 households 20 ’04 ’05 ’06 ’07 ’08 ’09 ’10 ’11 Athens Olympic World Cup In Germany Beijing Olympic World Cup Stop of Analog TV

  11. Issues to be Solved for DTV- Reasonable Copy Protection - • Heavy restrictions in Japan • No duplication: only “move” allowed • Contents on a removable media playable only on authorized players • Light weight restrictions in U.S. • Broadcast flag permits fair use copy

  12. Example of Copy Protection Regulationfor PC in Japan Decrypt Broadcasted Data Video Card Tuner Display Local Encryption Local Decryption PCI Bus No Raw Data on the PCI Bus (User Accessible Bus) Storage

  13. MPEG-2/4 IPMP : Outline • International Standard for Intellectual Property Management & Protection for MPEG Audio Visual contents • Basic concept is an architecture for secure coordination framework for IPMP tools. • Various CA/DRM tools (Authentication, Encryption/Decryption, Watermarking, etc.) can be applied • Tools are managed via IPMP Control Graph and handled as Blackbox.

  14. MPEG-2/4 IPMP : Status • Not widely used in current mass market • Markets in which MPEG-2/4 AV contents are widely used already have its own simple CA/DRM related mechanism. • DVD • Digital Broadcast • AV clip for 3G mobile phone • Reasonable DRM implementation example required to enlarge market size and to reduce equipment cost TC100 activities

  15. Home Network: History • Access network: • External PSTN modem • Internal PSTN modem • External ADSL modem/FTTH converter • Internal ADSL modem ?How about FTTH converter ? • Cable modem: stay independently • In-house network: • No practical network at home until recently: -1394: replacement of RCA pin jack • Very few WLAN audio streaming • Very few modem/printer/storage sharing • The situation is changing

  16. Emergence of Network Media Player- First Practical Homenetwork Device - Analog A/V Cable Access Network WLAN / Ethernet Network Media Player With MPEG Decoder

  17. TA8 activities (1) • TR 62291: API for UDF based file systems • TS 62318: Home server conceptual model • P62328: Interchangeable volume/file structure adaptation for broadcasting receiver • PT61925: The vocabulary of home server

  18. TA8 activities (2)Interchangeable volume/file structure adaptation for broadcasting receivers This standard defines the volume and file structure required for interchanging multimedia data of a home server/broadcasting receiver, which consists of an AV stream with multiple associated objects. Part 1: General description and architecture Part 2: General recording structure Part 3: Broadcasting system specific recording structure - ISDB Specifications for other country/region are expected to be proposed.

  19. TA8 activities (3)Interchangeable volume/file structure adaptation for broadcasting receivers(continued) program set management file Root TVR_ROOT PROG_SETMGR extended program set management file EXT_PS.MGR RT_TVRS TVPR010 root directory for TV recording format PROG0001.PIF TV recording format specific directory PROG0002.PIF TVPR020 directory PROG0001.PIF other structure PROG0002.PIF file (including stream files)

  20. TC100 Liaison • AES (Audio Engineering Society) • ITU-R/SG6M, 6Q • ITU-T/SG9, 12, 16 • JTC1/SC29 (Multimedia Coding) • SMPTE (Society of Motion Picture and Television Engineers) • 1394TA • ISO/TC42 (Photography)

  21. Closing Remarks • Home server/network-related TC100 activities were introduced. • PC is now leading the home network withnetwork media player. • Broadcasting services based on home server will drive gateway function between in-house network and access network. • DRM is the key issue for A/V network deployment.

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