Inter-Destination Media Synchronization, now standardized by ETSI TISPAN
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Inter-Destination Media Synchronization (IDMS) is a set of technologies to synchronize media content at multiple TVs. Social TV is an important application of IDMS. Social TV enables friends to watch a TV program together from different places, while communicating with each other using text, voice and/or video. However, the "watching-apart-together" experience is severely disturbed if you hear your friends cheer for a scored goal in a life TV football match, and only some moments later you see it on your own TV. Unfortunately, such delay differences are quite common in digital TV
networks, hence IDMS. Technologies for IDMS have been standardized by the international standardization body ETSI TISPAN. Dr. van Deventer has been one of the main contributors to this standard. In his presentation, Dr. van Deventer will provide some background on the ETSI IPTV standards and explain the architecture and protocols for standardized IDMS. The key network elements for IDMS are the Synchronization Client (SC) and the Media Synchronization Application Server (MSAS). Protocols like SIP, RTSP and HTTP are used to initiate IDMS sessions. An extension of the RTCP protocol is used to exchange synchronization information between SC and MSAS. The presentation concludes with some application examples for IDMS, like IDMS directly between TVs, large-scale IDMS with SCs in the network and the impact of transcoders between different types of TV distribution networks, e.g. fixed and mobile TV's. M. Oskar van Deventer, TNO, Netherlands Dr. M. Oskar van Deventer is senior scientist on network and service control. His focus is on the realization of national and international standards. He has been active contributor and editor of several ITU-T and ETSI standards, most recently the ETSI TISPAN standards on IMS-based IPTV. He was also chairman of Dutch taskforces on VoIP and ENUM. He has won several international awards in the area of Mobile Gaming. His current focus is fIPTV systems and Content Delivery Networks. He is (co)author of one book, more than 90 publications, over 40 patents applications and over 300 standardization contributions.
networks, hence IDMS. Technologies for IDMS have been standardized by the international standardization body ETSI TISPAN. Dr. van Deventer has been one of the main contributors to this standard. In his presentation, Dr. van Deventer will provide some background on the ETSI IPTV standards and explain the architecture and protocols for standardized IDMS. The key network elements for IDMS are the Synchronization Client (SC) and the Media Synchronization Application Server (MSAS). Protocols like SIP, RTSP and HTTP are used to initiate IDMS sessions. An extension of the RTCP protocol is used to exchange synchronization information between SC and MSAS. The presentation concludes with some application examples for IDMS, like IDMS directly between TVs, large-scale IDMS with SCs in the network and the impact of transcoders between different types of TV distribution networks, e.g. fixed and mobile TV's. M. Oskar van Deventer, TNO, Netherlands Dr. M. Oskar van Deventer is senior scientist on network and service control. His focus is on the realization of national and international standards. He has been active contributor and editor of several ITU-T and ETSI standards, most recently the ETSI TISPAN standards on IMS-based IPTV. He was also chairman of Dutch taskforces on VoIP and ENUM. He has won several international awards in the area of Mobile Gaming. His current focus is fIPTV systems and Content Delivery Networks. He is (co)author of one book, more than 90 publications, over 40 patents applications and over 300 standardization contributions.
nter-Destination Media Synchronization (IDMS) is een reeks van technologieën voor de synchronisatie van mediacontent op meerdere televisies. Sociale televisie is een belangrijke toepassing van IDMS. Sociale televisie stelt vrienden in staat om een televisieprogramma samen te bekijken vanaf verschillende locaties, terwijl ze met elkaar kunnen communiceren met behulp van tekst, spraak en/of video. De 'watching-apart-together'-ervaring zou echter ernstig worden verstoord als je je vrienden hoort juichen wanneer er een doelpunt wordt gescored tijdens een live voetbalwedstrijd terwijl jij dit enkele momenten later pas op je eigen televisie te zien krijgt. Helaas komen dergelijke vertragingen vaak voor binnen digitale televisienetwerken, vandaar de introductie van IDMS.
IDMS-technologieën IDMS zijn gestandaardiseerd door de internationale standaardisatie-organisatie ETSI TISPAN. Dr. van Deventer is één van de belangrijkste contribuanten voor deze norm.
IDMS-technologieën IDMS zijn gestandaardiseerd door de internationale standaardisatie-organisatie ETSI TISPAN. Dr. van Deventer is één van de belangrijkste contribuanten voor deze norm.
TNO Identifier
347933
Publisher
TNO
Place of publication
Delft
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