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ETSI EN 300 294
M00000943
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ETSI EN 300 294 Television systems; 625-line television Wide Screen Signalling (WSS)
standard by European Telecommunications Standards Institute, 04/01/2003
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Full Description
The present document is applicable to 625-line PAL and SECAM systems in use, in case, where wide screen signallingis required by the broadcasters.It specifies the wide screen signalling information, the coding and the way of incorporating the coded information into a625-line system.
The wide screen signalling information contains information on the aspect ratio range of the transmitted signal and itsposition, on the position of the subtitles and on the camera/film mode. Furthermore signalling for EDTV and forsurround sound is included. Some bits are reserved for future use.
The present document specifies the transmitted signal. Annex A gives the rules of operation for the minimumrequirements for receiver display formats as well as for subtitling. Annex B gives recommendations. Annex C gives aguideline for copyright information. Annex D describes how the one remaining unused bit can be used to conveymulti-bit information.