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Scalable Services over DAB and DVB-T from a Receiver Point of View
Linköping University, Department of Science and Technology.
Linköping University, Department of Science and Technology.
2002 (Swedish)Independent thesis Basic level (professional degree)Student thesis
Abstract [en]

TV and radio services have always been distributed over analogue broadcasting networks and been received on a TV -set or a radio receiver. Today this situation is changing due to digitalization and convergence between broadcasting, telecommunications and data communications. Other terminals, such as a PC, can also receive TV and radio services. Digital TV and radio can offer additional services such as e-commerce, electronic program guides and content synchronized to the TV and radio shows. If these services are to be received by several receiving terminals with different properties, the services must be adapted to the terminals. This can be done by scaling the services, meaning that the appearances and functionality of the services vary depending on the terminals’ properties. In this thesis scalable services are examined from a terminal point of view. Present and future receivers, platforms and possible methods to achieve scalability are presented, and their effects on scalable services are discussed.

Abstract [sv]

TV- och radiosändningar har fram till nyligen endast distribuerats över analoga TV- och radionät och tagits emot av traditionella TV- och radioapparater, men detta håller på att ändras i och med att sändningarna digitaliseras och konvergens sker mellan broadcasting, telekom och datakom. Nu kan även andra terminaler fungera som mottagare, t.ex. en PC med ett digital-TVkort eller ett digital-radiokort. Digital TV och radio erbjuder tilläggstjänster som t.ex. ehandel, tjänster kopplade till radio- eller TV-program och elektroniska programguider. Om samma tjänst ska kunna tas emot på flera olika mottagarterminaler med olika egenskaper, måste tjänsten anpassas efter terminalerna. Detta kan göras genom att skala tjänsten, dvs. utseendet och funktionerna varierar beroende på bl.a. terminalens kapacitet. I detta arbete har terminalaspekterna på skalbara tjänster undersökts. Aktuella och framtida terminaler, plattformar och eventuella skalbarhetslösningar presenteras, och deras påverkan på skalbara tjänster diskuteras.

Place, publisher, year, edition, pages
Institutionen för teknik och naturvetenskap , 2002. , 93 p.
Keyword [en]
Datorteknik, DAB, DVB-T, konvergens, skalbarhet, Java, API, MPEG
Keyword [sv]
National Category
Computer Engineering
URN: urn:nbn:se:liu:diva-1199ISRN: LITH-ITN-MT-EX--02/18--SEOAI: diva2:18363
Available from: 2002-05-23 Created: 2002-05-23

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