نتایج جستجو برای: digital video broadcasting
تعداد نتایج: 481335 فیلتر نتایج به سال:
This paper summarizes the panel discussion at AMCIS 2006 on the evolution and trends in mobile wireless services and technology. The panelists included information systems faculty members from the United States and Mexico. The covered topics included wireless fundamentals, wireless technologies, applications and value chain evolution, wearable computing, wireless mobile issues including privacy...
Digital video and audio multimedia systems will rapidly take the place of existing analog systems in the next millennium's radio and television broadcasts. Current initiatives in digital radio will soon provide near-CD quality radio channels in many countries. However, due to the very nature of their broadcasting architecture, user interactivity and exibility is limited. We demonstrate an archi...
Abstract— The last decade has seen a quiet uprising in digital video technology. The digital videos are been used in television, broadcasting, Internet and also in mobile phones. The uprising issues use H.264/AVC formats in video compression techniques. The SAD operation can be divided into two stages, viz. absolute and sum stage. Pipelining method is implemented as it is used in low power appl...
The future of Digital Video Broadcasting (DVB) is moving towards solutions for efficient delivery of interactive IP multimedia services over DVB networks to handheld terminals. One of the most promising technologies is DVB-Handheld (DVB-H), at present under standardisation. Services deployed via this type of DVB technologies should enjoy reliability comparable to TV services and high quality st...
The development of new value added services based on the Digital Video Broadcasting Terrestrial (DVB-T) technology makes it possible to address a large amount of end users, among which also those users who are not familiar with Internet based services can be included. By means of DVB-T, services and applications can be delivered that are characterized by differentiated levels of interactivity. ...
The established digital video broadcasting networks can do more than transmit the ordinary TV program to the viewer’s living room. The future of digital television will be interactive. Especially for local communities or people who are not familiar with computers, local cable networks can be an interesting alternative to the global Internet. We present a technology platform for using the tradit...
Orthogonal Frequency Division Multiplexing (OFDM) is one of the modulation techniques used in digital video broadcasting systems. A significant disadvantage of OFDM is that it has a high peak-to-average power ratio (PAPR). This means that the output amplifiers of digital television transmitters must be designed to handle signals that are far in excess of the mean levels. These amplifiers are ex...
Orthogonal frequency division multiplexing (OFDM) is a special case of multicarrier transmission, where a single data stream is transmitted over a number of lower rate subcarriers. Orthogonal frequency division multiplexing (OFDM) has been chosen as modulation technique for different application wireless communications. OFDM can provide large data rates with sufficient robustness to radio chann...
The Digital Video Broadcasting (DVB) Project was founded in 1993 by the European Telecommunications Standards Institute (ETSI) with the goal of standardizing digital television services. Its initial standard for satellite delivery of digital television, dubbed DVB-S, used a concatenation of an outer (204,188) byte shortened Reed Solomon code and an inner constraint length 7, variable rate (r ra...
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