Over the Air Download for Digital Television Receivers Upgrade

Over the air download is an important feature for terrestrial digital television systems. It provides a cheaper option for DTV receiver manufacturers to provide bug fixes and quality improvements to their products, allowing a shorter time to the market. This paper presents a mechanism proposal of an over the air download software update for the Brazilian system. This mechanism was specified considering the Brazilian DTV over the air download specifications, but it was extended considering efficiency, reliability and user transparency as requirements for software update. A proof of concept was implemented on a Linux based set-top box. The mechanism is divided into five main functional parts: download schedule, packets download, packets authentication, installation and error robustness. Some analyses were conducted upon the implementation considering the following criteria: download robustness and maximum downloading rate. (1)

Consistency and change in Finnish broadcasting policy : the implementation of digital television and lessons from the Canadian experience

Konsistens och f��r��ndring i finl��ndsk etermediapolitik. Implementering av digital television och en j��mf��relse med Kanada Avhandlingen handlar om hur det finl��ndska televisionssystemet f��r��ndrades i slutet av 1990-talet fr��n en nationell institution till ett dualistiskt system som pr��glas av stark marknadsorientering. Syftet med avhandlingen ��r att f��rst�� p�� vilket s��tt en s�� snabb f��r��ndring kunde ske och analysera de institutionella faktorerna bakom utvecklingen. P�� teoretisk niv�� diskuteras tesen om det n��ra sambandet mellan statliga politiska institutioner och rundradioverksamhetens institutioner. Avhandlingen best��r av tv�� fallstudier. Den f��rsta s��tter fokus p�� de f��rsta ��ren av den finl��ndska televisionens digitaliseringsprocess som startade med starka industriell-nationalistiska motiveringar. Analysen, som baserar p�� offentliga dokument, str��cker sig framtill h��sten 2001 d�� de digitala televisionss��ndningarna startade och regeringspropositionen om den nya kommunikationsmarknadslagen l��mnades till riksdagen. Dessa policy-processer analyseras som en ���marknadisering��� av de traditionella styrningsprinciper och id��er g��llande finl��ndsk rundradioverksamheten. En j��mf��relse mellan Finlands och Kanadas nationella rundradiopolitik g��r att man kan koppla slutsatserna till den internationella utvecklingen. J��mf��relsen visar hur kommunikationspolitiska linjen i de tv�� l��nderna har kommit att likna varandra trots att l��ndernas tv-system och deras styrordningar ��r mycket olika. Exemplet med Kanada visar att den s��rskilda teknologin inte ��r viktig utan snarare de kommersiella intressen som st��r bakom och som beslutsfattare g��rna d��ljer i en nationalistisk retorik. Studien visar att det ��r viktigt att beakta vilken tyngd man i politiken ger de tv�� sidor som rundradioverksamheten best��r av: s��ndningsteknologin och verksamheten som en speciell kulturform. Nationalstatens handlingsutrymme minskar inom f��ltet om m��let ��r att vara framg��ngsrik i konkurrensen i den nya internationella ekonomin. Enligt de nyliberalistiska principer som det politiska systemet ��verlag har till��gnat sig det ��r ��nskv��rd men ocks�� helt inhemska institutionella traditioner och praxis som f��ljdes i den finl��ndska digitaliseringsprocessen fr��mjade utvecklingen som ledde till att n��stan alla ursprungliga nationella syften f��ll s��nder.

Drivers and barriers to digital television adoption in Portugal: the perspectives of the TV viewers and other main stakeholders

To understand what are the most significant factors for digital TV adoption by the Portuguese population in the switchover context is the main goal of the research project here presented. In April 26, 2012, the analogue terrestrial television switchoff is planned to occur in Portugal, according to the schedule published by the national telecommunication regulator Anacom. Digital terrestrial TV was launched in the country in April 2009, making Portugal one of the countries with a more ambitious schedule ��� or risky, depending on the perspective - for the full transition from analogue to digital terrestrial television. In this paper we will start by presenting the research project���s objectives, theoretical framework and research design. Next, we will present first results of the project focused on the barriers and drivers to digital TV adoption from two of the empirical studies which integrate it, namely, the quantitative inquiry administered to a representative sample of the Portuguese population and interviews with main stakeholders in the area of digital TV in Portugal. The perspectives of the television viewers are compared with other main stakeholders in this process. The paper will be concluded with a brief discussion of these results and a brief enumeration of next steps for the project.

Accessibility in Digital Television: Designing Remote Controls

Free to air television is still an important tool to provide information and communication in many countries. Therefore, the universal access to the television system is very important. This paper presents a set of Digital Television accessible remote control devices designed for the Brazilian Digital Television. A research was conducted, interviewing people with disabilities in Brazil. Three remote control models were proposed, consolidating the main identified requirements, being accessible for a diverse group of impairments.

Exploring the adoption of interactive digital television services as a retail shopping platform

The aim of this research is to consider the possible effect of an emerging technology platform on the uptake of online shopping: interactive (digital) Television (iTV), which enables viewers to select a variety of viewing options, publicity materials, games, entertainment and more recently shopping. An augmented version of the original TAM is applied to this study. Two new constructs are considered namely access and awareness together with perceived ease of use, perceived usefulness, perceived enjoyment and security. The results show that indeed the augmented TAM can be used as a predictive model for the adoption of iTV as an online shopping platform. It is concluded that access, perceived ease of use, perceived enjoyment and perceived usefulness are significant factors to determine the consumers���behavioural intentions towards the use of digital TV as a new shopping platform. However, awareness and security are considered to be insignificant with no effect on consumers��� behavioural intentions towards the new shopping medium.

On the implementation of a Laboratory of Digital Television according to the ISDB-Tb standard

Este art��culo resume el proceso de implementaci��n del Laboratorio de Televisi��n Digital (DTV) de la Universidad de Cuenca, que surge como un entorno confiable de experimentaci��n e investigaci��n que hace uso de las caracter��sticas asociadas al est��ndar ISDB-Tb adoptado por Ecuador en el a��o 2010 para la transmisi��n de se��ales de televisi��n abierta. El objetivo de este art��culo es documentar los aspectos que se han considerado para simular un escenario real en el que un Transport Stream (TS) formado por contenido audiovisual y aplicaciones interactivas, primero se genera, para luego transmitirse a trav��s del canal de comunicaciones, y finalmente ser recibido en una televisi��n con receptor ISDB-Tb. As��, se facilita el desarrollo y la experimentaci��n de nuevos servicios aprovechando el nuevo formato de DTV.

The potential of digital interactive television for the provision of healthcare and wellness services

The potential of digital interactive television (iDTV) to promote original services, formats and contents that can be relevant to support personal health care and wellness of individuals, namely elderly people, has not been yet fully explored in the past. Therefore, in a context of rapid change of the technological resources, in which the distribution and presentation of content comes associated with new platforms (such as digital terrestrial TV and IPTV), it is important to perceive the configurations that are being developed for interactive digital TV (iDTV) that may result in relevant outcomes within the field of healthcare and wellness, with the aim of offering complementarity to the existing services and contents made available today via the traditional means and media. This article describes and discusses the preliminary results of the first part of the research project iDTV-HEALTH: Inclusive services to promote health and wellness via digital interactive television. These first results suggest that iDTV solutions may represent a real contribution to delivery healthcare and wellness to the target population, namely as a supplement to health services provision.

Incentives and Barriers to the Adoption of Digital Terrestrial Television in Portugal: Perspectives of the stakeholders involved in the transition process

The success of the transition from analogical terrestrial television to digital terrestrial television ��� process also known as switch-over ��� requires the identification of barriers and drivers among the impacted population. Therefore, the study in which this article is based had as main purpose to understand exactly what are those barriers, in order to produce a valid contribution to the several decision makers, and to be able to contribute to a more inclusive television, accessible and transversal to the whole of the population. In that sense, one of the phases of the project consisted in several interviews to key stakeholders in the transition process, the results of which and subsequent recommendations are presented in this article.

A televis��o na era digital: qual o modelo mais adequado para o servi��o p��blico de televis��o na plataforma internet?

Disserta����o apresentada �� Escola Superior de Comunica����o Social como parte dos requisitos para obten����o de grau de mestre em Audiovisual e Multim��dia.

Interf��cie tridimensional EGP TV digital

En este proyecto se presenta una aplicaci��n capaz de recibir la televisi��n digital y representar la informaci��n que contiene en un entorno de producci��n de gr��ficos tridimensionales. Esto conlleva recoger y procesar el flujo de transporte para m��s de un servicio, procesar las diferentes tablas de informaci��n, implementar mecanismos para representar la informaci��n audiovisual en un entorno tridimensional y construir una interfaz de usuario con los datos recogidos.

Digitaalisen television soveltuvuus tietoyhteiskunnan tarpeisiin, case Kuopion Kaapelitelevisio Oy

Tutkielmassa selvitet����n Kuopion Kaapelitelevisio Oy:n toteuttaman digitaalisen television ominaisuuksia ja niiden sopivuutta tietoyhteiskunnan vaatimuksiin. Tietoyhteiskunnassa tiedosta on tullut t��rkein yritysten p����oma. Yritysten v��linen toiminta on tiedon siirt��mist�� palvelun tuottajalta palvelun kuluttajalle. Jotta edell�� mainitut asiat ovat mahdollista, tarvitaan tiedon valtatie, joka koostuu tieto-, perus-, varus-, liitynt�� ja siirtopalvelusta sek�� palvelun tuottajista palvelimineen ett�� k��ytt��jist�� p����telaitteineen. Itse tieto liikkuu siirtotiet�� pitkin. Kuopion Kaapelitelevisio Oy:n ensimm��isen sukupolven digitaalinen televisio t��ytt���� tiedon valtatien ominaisuudet vain varuspalveluiden osalta. Kaikki muut internetist�� tutut peruspalvelut eiv��t ole mahdollisia. Tuleva toisen sukupolven digitaalinen televisio, jossa on mukana MHP-palvelualusta, MHP-digisovittimet ja interaktiivisuuden tuova paluukanava mahdollisuuden tehd�� digitaalisesta televisiosta internetin ja mobiiliverkkojen kaltainen monipalveluverkko. Uuden toisen sukupolven digitaalisen television palveluiden tuottamisen suurin este on digisovittimien tulevat myyntiin vasta syksyll�� 2003. T��ll�� hetkell�� ainut MHP-digisovitin, Sony Wega NX100, on hinnaltaan noin 4000 ���. Tutkimuksen tuloksia tullaan hy��dynt��m����n digitaalisen television kehitysty��ss�� Kuopion Kaapelitelevisio Oy.ss��

Inviting the Audience ��� Interactive, Participatory, and Social Television in Finland

The television and the ways it has invited the audience to take part have been changing during the last decade. Today���s interaction, or rather participation, comes from multiplatform formats, such as TV spectacles that combine TV and web platforms in order to create a wider TV experience. Multiplatform phenomena have spread television consumption and traditional coffee table discussions to several different devices and environments. Television has become a part of the bigger puzzle of interconnected devices that operates on several platforms instead of just one. This thesis examines the Finnish television (2004���2014) through the notion of audience participation and introduces the technical, thematic, and social linkages as three different phases, interactive, participatory, social, and their most characteristic features in terms of audience participation. The aim of the study is also to focus on the idea of a possible change by addressing the possible and subtler variations that have taken place through the concept of digital television. Firstly, Finnish television history has gone through numerous trials, exploring the interactive potential of television formats. Finnish SMS-based iTV had its golden era around 2005, when nearly 50% of the television formats were to some extent interactive. Nowadays, interactive television formats have vanished due to their negative reputation and this important part of recent history is mainly been neglected in the academic scope. The dissertation focuses also on the present situation and the ways television content invites the audience to take part. ���TV meets the Internet��� is a global expression that characterises digital TV, and the use of the Web combined with television content is also examined. Also the linkages between television and social media are identified. Since television can nowadays be described multifaceted, the research approaches are also versatile. The research is based on qualitative content analysis, media observation, and Internet inquiry. The research material also varies. It consists of primary data: taped iTV formats, website material, and social media traces both from Twitter and Facebook and secondary data: discussion forums, observations from the media and Internet inquiry data. To sum up the results, the iTV phase represented, through its content, a new possibility for audiences to take part in a TV show (through gameful and textual features) in real-time. In participatory phase, the most characteristic features from TV-related content view, is the fact that online platform(s) were used to immerse the audience with additional material and, due to this, to extend the TV watching enjoyment beyond the actual broadcast. During the Social (media) phase, both of these features, real-timeness, and extended enjoyment through additional material, are combined and Facebook & Twitter, for example, are used to immerse people in live events (in real-time) via broadcast-related tweets and extra-material offered on a Facebook page. This thesis fills in the gap in Finnish television research by examining the rapid changes taken place on the field within the last ten years. The main results is that the development of Finnish digital television has been much more diverse and subtle than has been anticipated by following only the news, media, and contemporary discourses on the subject of television. The results will benefit both practitioners and academics by identifying the recent history of Finnish television.

Profiles of digital TV adopters in the switchover context in Portugal

In order to conduct a successful transition from analogue terrestrial television to full digital terrestrial television it is essential to identify what are the most significant drivers and barriers for adoption among the impacted population. Also importantly, it is to segment the population according with their attitudes towards digital TV, their awareness about the switchover process and intention of adopting digital TV, among other relevant topics. The tradition of profiles definition based on the adoption and rejection of innovations can be traced back to Beal & Bohlen, who proposed five categories of innovation adopters based on the time of adoption, with significant differences in selected personal and social characteristics: the innovators, the early adopters, the early majority, the majority and non-adopters. Later, Rogers would propose similar categories of adopters that became the standard for years to come: the innovators, the early adopters, the early majority, the late majority and the laggards. While helpful, these traditional innovation adopters��� profiles do not totally grasp the complexities of the adoption of an innovation such as digital TV, particularly in mandatory settings. In this paper we will propose a classification of adopters of digital TV in Portugal, based on the results of one of the four empirical studies of the research project ADOPT-DTV, namely, the quantitative inquiry administered to a representative sample of the Portuguese population. The paper will be concluded with a brief discussion of results and the enumeration of the next steps of the research project.