Results 271 to 280 of about 45,531 (297)

Certified e-mail over digital terrestrial television

2007 15th International Conference on Software, Telecommunications and Computer Networks, 2007
Electronic mail service, better known as e-mail, is probably the most widespread asynchronous way of exchanging data among people, thanks to its immediacy and easiness of use. In the framework of e-mail services, ensuring a valid identity has become a vital step in stopping spam, fraud and even more serious crimes; to this aim, Certified e-mail (CE ...
G. Rascioni, S. Spinsante, E. Gambi, C. Alfonsi   +3 more
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Tutorial on digital terrestrial television broadcasting

2010 Fifth International Conference on Information and Automation for Sustainability, 2010
This tutorial presents an overview of digital terrestrial television broadcasting (DTTB), its evolution from analogue television to the second generation technologies. Main technologies that form the DTTB infrastructures and services are described in brief.
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Adaptive gap filler for digital terrestrial television

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, 2014
This paper presents the development of an adaptive gap filler for Digital Terrestrial Television broadcasting. Unlike conventional equipment, which only amplifies and retransmits the desired signal, the proposed system employs cognition principles to analyze the adjacent channels spectrum, thus ensuring the required protection ratio.
Chrystianne Rocha, Cristiano Akamine, Gunnar Bedicks, Edson Lemos Horta, Guido Stolfi   +4 more
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Digital Terrestrial Television according to ISDB-T

2004
The Japanese standard for digital terrestrial television is called ISDB-T, i.e. Integrated Services Digital Broadcasting – Terrestrial, which was adopted in 1999, quite a long time after DVB-T and ATSC. This delay made it possible to take into account also the experience gained with the older standards.
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Implementing a national federal digital terrestrial television network

International Broadcasting Conference (IBC), 1997
The UK government has passed legislation which provides for the operation of national digital terrestrial television broadcasting (DTTV). Within the present frequency planning system up to six multiplexes across most of the UK could be introduced. The target is to release the UHF spectrum from the occupancy by PAL analogue services so that it could be ...
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Multimedia broadcasting using digital television terrestrial transmission systems

The 5th International Symposium on Wireless Personal Multimedia Communications, 2003
We describe how the transmission technologies developed for over-the-air digital television broadcasting, could be used to offer wireless personal multimedia communications. The results of some transmission tests demonstrate some of the potentials and problems of this approach.
B. Caron, M. Guillet, K. Salehian, null Yiyan Wu   +3 more
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Interference Simulation from LTE to Digital Terrestrial Television

2011 7th International Conference on Wireless Communications, Networking and Mobile Computing, 2011
In this paper, simulation is conducted to study the interference to digital television (DTV) system due to the introduction of Long Term Evolution (LTE) system. Access coverage loss curves and capacity performance of DTV system are plotted with Adjacent Channel Interference Ratio (ACIR).
Yi-Xun Chen, Lin Xiao, Yan Sun
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Health Services through Digital Terrestrial Television

2013
This chapter defines a scenario for providing Health Services through the Digital Terrestrial Television (DTT), both for patients (monitoring health parameters) and healthy citizens. A number of services will be provided over DTT, not only by means of informative or interactive applications broadcast and installed on the set-top box, but also as ...
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Digital Two-Channel Sound for Terrestrial Television

IEEE Transactions on Consumer Electronics, 1987
A joint BBC/IBA technical specification of a transmission standard for digital two-channel sound with terrestrial television, for use with System I television [1], was approved by the United Kingdom Government in September 1986. Since then, broadcasters in the Nordic countries have adapted this digital system, now known as NICAM 728, for use with ...
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Technical aspects of European digital terrestrial television

11th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.02CH37379), 2003
Digital television is considered an integral part of the information superhighway in the 21st century. Broadband is the key word. Digital television is a reality, dozens of channels are on the air, but hundreds more are still preparing to make the move to digital television.
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