WCT-WPPT/IMP/3. page 19 working groups – the Digital Transmission Discussion Group ("DTDG") and the Data Hiding Subgroup ("DHSG") – to seek technical proposals from various parties and to conduct certain tests and analyses of the proposals received.
WCT-WPPT/IMP/3 page 22 l’occultation des données ("DHSG") – chargés de rechercher des solutions techniques pour les différents secteurs et d’étudier et analyser les propositions reçues.