Objetivo
The main objective of the DVT project is to develop an advanced, cost-effective, technology for digital TV and HDTV magnetic tape recording that is well suited for use in the IBC network, to support video, and other, IBC services.
The main objective of the digital video tape (DVT) project is to develop an advanced, cost effective, technology for digital television (TV) and high definition television (HDTV) magnetic tape recording that is well siuted for use in the integrated broadband communications (IBC) network, to support video, and other, IBC services.
Effort was concentrated on the development of a digital recording system providing high recording densities and channel bit rates of up to 100 Mbits{- 1}, requiring a channel capacity of about 10 times that achieved in current analogue consumer video recorders. Bit rate reduction techniques for magnetic tape recording will be used to reduce the HDTV distribution bit rate from about 1000 Mbits{-1} to a channel recording bit rate of 100 Mbits{-1} or lower. Because of the requirement for multispeed operation of the recorder and because recording channel error characteristics are very different from those of the transmission channel, the corresponding bit rate reduction requirements are quite different. Therefore, the work on bit rate reduction for magnetic recording must be undertaken seperately from that on video coding for transmission, which is being undertaken elsewhere. In order to guarantee consistency of coding, liaison with that project must be maintained.
Considerable improvements have been achieved on the system elements. The realisation of the final HDTV demonstrator has been started and should be completed by end of 1992.
Technical Approach
The project addresses the development of an advanced, cost-effective, digital tape recording technology for HDTV in which the recording of standard TV is also included. Effort will be concentrated on the development of a digital recording system providing high recording densities and channel bit rates of up to 100 Mbit/s, requiring a channel capacity about ten times that achieved in current analogue consumer video recorders. Bit-rate reduction techniques for magnetic tape recording will be used to reduce the HDTV distribution bit-rate from about 1000 Mbit/s to a channel recording bit-rate of 100 Mbit/s or lower. Because of the requirement for multi-speed operation of the recorder and because recording-channel error characteristics are very different from those of the transmission channel, the corresponding bit-rate reduction requirements are quite different. Therefore, the work on bit-rate reduction for magnetic recording must be undertaken separately from that on video coding for transmission, which is b ing undertaken in project R1018, HIVITS. In order to guarantee consistency of coding, liaison with the consortium undertaking that project must be maintained.
Key Issues
- Development of a recording channel providing a high bandwidth and a high recording density.
- Development of cost-effective high-precision recording mechanics which provide a high track density.
- Elaboration of bit-rate reduction techniques for TV and HDTV, appropriate for magnetic recording.
- Realisation of a DVT demonstrator.
Achievements
In the first three years of the project most effort was spent on the separate technologies needed for building up the background knowledge and on the integration into a data recorder. In year four the decision was made to change some basic parameters to enhance the realisation of a HDTV-recorder which can be used for demonstrations outside a laboratory environment. The expertise built up in the first three years and the results of the experiments with the new basic parameters resulted in year four in the definition of a better system concept and a new tape format. Considerable improvements have been achieved on the system elements. The realisation of the final HDTV demonstrator has been started and should be completed by end of 1992.
Expected Impact
The concurrent development of a cost-effective and suitable technology for recording and playing-back TV and HDTV signals is important for the development and specification of IBC, since its availability will strongly support the IBC video service.
Ámbito científico (EuroSciVoc)
CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..
CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..
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Programa(s)
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Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.
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Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.
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Coordinador
5600 JA Eindhoven
Países Bajos
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