89 research outputs found

    Converged digital TV services: the role of middleware and future directions of interactive television

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    The subject of the future of the interactive Television medium has become a topic of great interest to the academic and industrial communities particularly since in the recent years there has been a dramatic increase in the pace of innovation of convergence of digital TV systems and services. The purpose of this paper is to provide a brief overview of what we know as digital TV converged services, to present and categorise the digital Television middleware technologies that contributed to it, and to present possible future trends and directions. A new Television era of converged wireless and mobile content delivery, user-authored content, multimodal interaction, intelligent personalisation, smart space awareness, and 3D content sensations is foreseen, creating ambient and immersive experiences

    Interactive TV meets Mobile Computing

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    The talk presents some recent developments in interactive digital television and discusses the trends and challenges of bringing TV services to mobile devices. Two areas will be addressed: portable use of mobile devices to complement the TV set in the home and mobile TV services while on the move using mobile broadcasting technology

    Service Platform for Converged Interactive Broadband Broadcast and Cellular Wireless

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    A converged broadcast and telecommunication service platform is presented that is able to create, deliver, and manage interactive, multimedia content and services for consumption on three different terminal types. The motivations of service providers for designing converged interactive multimedia services, which are crafted for their individual requirements, are investigated. The overall design of the system is presented with particular emphasis placed on the operational features of each of the sub-systems, the flows of media and metadata through the sub-systems and the formats and protocols required for inter-communication between them. The key features of tools required for creating converged interactive multimedia content for a range of different end-user terminal types are examined. Finally possible enhancements to this system are discussed. This study is of particular interest to those organizations currently conducting trials and commercial launches of DVB-H services because it provides them with an insight of the various additional functions required in the service provisioning platforms to provide fully interactive services to a range of different mobile terminal types

    Semi-automated mobile television interactive application generation based on XHTML and Java ME

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    Mobile Digital TV (MDTV), the hybrid of Digital Television (DTV) and mobile devices (such as mobile phones), has introduced a new way for people to watch DTV and has brought new opportunities for development in the DTV industry. Nowadays, the development of the next generation MDTV service has progressed in terms of both hardware layers and software, with interactive services/applications becoming one of the future MDTV service trends. However, current MDTV interactive services still lack in terms of attracting the consumers and the service creation and implementation process relies too much on commercial solutions, resulting in most parts of the process being proprietary. In addition, this has increased the technical demands for developers as well as has increased substantially the cost of producing and maintaining MDTV services. In light of the aforementioned situation, the Thesis has contributed to this field, by proposing an innovative MDTV service creation and consumption system based on XHTML and Java ME. On the head-end it introduces a semi-automatic creation mechanism to facilitate a less technical and more efficient interactive service creation process. This enables designers and creative individuals to be actively involved in the MDTV service creation process and to develop interactive-rich MDTV service. On the client-end it employs an open-source software environment as the interactive service MDTV consumption platform, rendering the MDTV service implementation process as less proprietary as possible. Furthermore, the Thesis offers a discussion on the different MDTV interactive application models currently used and based on the proposed software, a novel MDTV service presentation method is further introduced and adopted instead of the Rich Media and ECMAScript based methods. Finally, a series of qualitative testing procedures have been implemented with regards to conducting an essential evaluation on the operability of the proposed software system.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Semi-automated mobile television interactive application generation based on XHTML and Java ME

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    Mobile Digital TV (MDTV), the hybrid of Digital Television (DTV) and mobile devices (such as mobile phones), has introduced a new way for people to watch DTV and has brought new opportunities for development in the DTV industry. Nowadays, the development of the next generation MDTV service has progressed in terms of both hardware layers and software, with interactive services/applications becoming one of the future MDTV service trends. However, current MDTV interactive services still lack in terms of attracting the consumers and the service creation and implementation process relies too much on commercial solutions, resulting in most parts of the process being proprietary. In addition, this has increased the technical demands for developers as well as has increased substantially the cost of producing and maintaining MDTV services. In light of the aforementioned situation, the Thesis has contributed to this field, by proposing an innovative MDTV service creation and consumption system based on XHTML and Java ME. On the head-end it introduces a semi-automatic creation mechanism to facilitate a less technical and more efficient interactive service creation process. This enables designers and creative individuals to be actively involved in the MDTV service creation process and to develop interactive-rich MDTV service. On the client-end it employs an open-source software environment as the interactive service MDTV consumption platform, rendering the MDTV service implementation process as less proprietary as possible. Furthermore, the Thesis offers a discussion on the different MDTV interactive application models currently used and based on the proposed software, a novel MDTV service presentation method is further introduced and adopted instead of the Rich Media and ECMAScript based methods. Finally, a series of qualitative testing procedures have been implemented with regards to conducting an essential evaluation on the operability of the proposed software system.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Test Automation and Continuous Integration

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    This final year project was carried out by commission of Nokia Devices Mobile TV unit. The aim of this project was to design and establish an automatic test environment for a continuous integration process. By automating the testing, it was striven to free resources which were tied to the testing process before. These resources are more valuable to be used for evaluating and developing the other test methods. At the beginning of this project, the Mobile TV has been described in general. The DVB-H radio network and the other broadcast technologies are introduced as well. Also the prerequisities of the automatic testing, the architecture of the automatic test system and the used test methods, especially on the Mobile TV environment, have been explained. The actual implementation was started by familiarizing with different testing tools and test environments. After that, the test tools for each testing needs were smoothed out and connected to the automatic test system. Finally, the test system was connected to the Continuous Integration process. In this project, the Qt based Mobile TV is also described. Qt is an application development framework, which is widely used in the development of graphical user interface applications.Työ tehtiin Nokia Devices Mobile TV -yksikölle. Työn tavoitteena oli suunnitella ja luoda automaattinen mobiili TV -testiympäristö Continuous Integration -prosessiin. Automatisoimalla testausta pyrittiin vapauttamaan testauksen sitomia resursseja, jotka voitaisiin käyttää muunlaiseen testaukseen ja testausvaiheiden kehittämiseen. Työssä kerrotaan aluksi mobiili TV:stä yleisesti. Siinä kerrotaan DVB-H -radioverkosta sekä muista lähetystekniikoista. Työssä käydään myös läpi automaattisen testauksen edellytykset erityisesti mobiili TV -ympäristössä sekä kuvataan automaattisen testausympäristön rakenne ja käytettävät testausmetodit. Työssä kerrotaan myös Qt:sta sekä siihen pohjautuvasta mobiili TV:n toiminnasta. Qt on graafinen käyttöliittymäkirjasto ja sillä voidaan kehittää monella eri käyttöjärjestelmällä toimivia ohjelmia tekemättä muutoksia ohjelman lähdekoodiin. Varsinainen toteutus alkoi tutustumalla erilaisiin automaattisen testauksen työkaluihin ja ympäristöihin. Tämän jälkeen selvitettiin erikseen työkalu kullekin testaustarpeelle ja liitettiin se automaattiseen testausjärjestelmään. Lopuksi testausjärjestelmä liitettiin onnistuneesti Continuous Integration -prosessiin

    A survey of digital television broadcast transmission techniques

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    This paper is a survey of the transmission techniques used in digital television (TV) standards worldwide. With the increase in the demand for High-Definition (HD) TV, video-on-demand and mobile TV services, there was a real need for more bandwidth-efficient, flawless and crisp video quality, which motivated the migration from analogue to digital broadcasting. In this paper we present a brief history of the development of TV and then we survey the transmission technology used in different digital terrestrial, satellite, cable and mobile TV standards in different parts of the world. First, we present the Digital Video Broadcasting standards developed in Europe for terrestrial (DVB-T/T2), for satellite (DVB-S/S2), for cable (DVB-C) and for hand-held transmission (DVB-H). We then describe the Advanced Television System Committee standards developed in the USA both for terrestrial (ATSC) and for hand-held transmission (ATSC-M/H). We continue by describing the Integrated Services Digital Broadcasting standards developed in Japan for Terrestrial (ISDB-T) and Satellite (ISDB-S) transmission and then present the International System for Digital Television (ISDTV), which was developed in Brazil by adopteding the ISDB-T physical layer architecture. Following the ISDTV, we describe the Digital Terrestrial television Multimedia Broadcast (DTMB) standard developed in China. Finally, as a design example, we highlight the physical layer implementation of the DVB-T2 standar
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