DEFINED-FORMAT TELETEXTMOVESTO HIGHERLEVELSOF DISPLAYAND YETFULFILSITS PROMISEOFCOMPATIBILITY WITHFIRSTGENERATIONDECODERS
Richard Bugg · 1985
DEFINEDFORMATTELETEXT This paper discusseshow the World SystemTeletext specificationis fullycompatiblewith the higher levelsof displaydefinedin the new CEPTVideotex 'presentationlayer'standard. Carefuldesignof transmissioncodingresultsin a systemthat is both efficientand ruggedand yet permitsfulldownwards compatibilitywith the many first-generationWorld SystemTeletextdecodersthat are installedthroughout theworld.