Interactive Digital Teletext Service
نویسندگان
چکیده
Digital television offers significantly increased capacity, which can be used to provide digital Teletext service. The existing digital Teletext belongs to enhanced broadcast application profiles. It has only local interactivity and no return channel is needed. The digital Teletext with two-way interactivity is highly expected both from the growing market and the research area. This paper presents a Java-XML based solution, which can add two-way communications to the digital Teletext service by using a return channel provided by digital television infrastructure. The approach is based on the client-server model and utilizes XML based messaging mechanism and Java Servlet technology. A simple TV shopping system was developed inside the digital Teletext browser as an example of interactivity and shows how messaging works. The order forms, which are frequently used in an interactive system, are represented in XML format. The form system separates the presentation and the form content. Therefore, the average latency of the system is decreased.
منابع مشابه
A Digital Teletext Service
Digital Teletext is one of the most important interactive services of emerging digital television. As an enhanced version of existing analogue Teletext service, it’s a resident application of the set-top box. Its information will be stored in a data carousel and transmitted via broadcasting network. The new service can display smooth graphics and images, have page links and a menu driven naviga...
متن کاملDigital TV in the Convergent Environment
he growth of digital TV in UK homes has been much more rapid than the penetration of the Internet, which has itself grown at a phenomenal rate. The digital TV services started on 1 October 1998 with satellite broadcasting followed by terrestrial broadcasting on 15 November 1998 and more recently by cable services. By mid-2000, about one-and-a-half years after the start of digital services, 5 mi...
متن کاملTeletext – Old Digits in a New Age
Teletext is a well established method of delivering textual information to the home. For example, the BBC’s CEEFAX service regularly attracts 15 million analogue television viewers each week. As such it provides a mature and stable source of “television friendly” content which can be re-published on the emerging digital television systems. However, Teletext has other properties that allow it to...
متن کاملCountry Differences In Technology Experience: The Effect Of Teletext On Itv Adoption In The United Kingdom
This study found that participant’s previous teletext experience and previous iTV experience influenced their openness towards using interactive television in planning independent longhaul holidays. The study surveyed participants for their previous interactive media experience (internet, iTV and teletext) before viewing a linear or interactive television destination promotion. Two ad models (i...
متن کاملUsing Interactive Search Elements in Digital Libraries
Background and Aim: Interaction in a digital library help users locating and accessing information and also assist them in creating knowledge, better perception, problem solving and recognition of dimension of resources. This paper tries to identify and introduce the components and elements that are used in interaction between user and system in search and retrieval of information in digital li...
متن کامل