H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04N 7/04 (2006.01) H04N 7/14 (2006.01) H04N 7/24 (2006.01) H04N 7/52 (2006.01) H04N 7/58 (2006.01) H04L 29/08 (2006.01)
Patent
CA 2241936
A method is disclosed for supplying arbitrary types of information in a digital signal conformant to the structures defined in ISO standard ISO/IEC 13818-1, known generally as MPEG2 Systems. The method extends Program Stream and Transport Stream Structures by application of principles developed for standardization of bidirectional data communications protocols to define a universal messaging syntax applicable to all types of information, including Internet data streams, VBI data streams, other types of data streams, as well as MPEG2 video, audio, and control; to define a multiplexing structure that is independent of the details of the MPEG2 signal structure; and to define a scheme for addressing such enhanced MPEG2 signals, or portions of signals, to individual decoders or to groups of decoders.
L'invention porte sur un procédé d'injection d'informations de type arbitraire dans un signal numérique conforme aux structures définies dans la norme ISO/CEI 13818-1 généralement connus sous l'appellation de système MPEG2. Ledit procédé élargit les structures des flux de programmation et de transfert, en appliquant les principes développés pour la normalisation de protocoles de communications à données bidirectionnelles, pour définir une syntaxe universelle de transmission de messages applicable à tous types d'informations y compris les flux de données Internet, VBI, et autres, ainsi qu'aux signaux MPEG2 vidéo, audio et de commande, afin de définir une structure de multiplexage indépendante des détails de celle des signaux MPGE2, et un schéma d'adressage desdits signaux MPGE2 améliorés, ou de leurs parties, vers des décodeurs isolés ou des groupes de décodeurs.
Bennett Christopher J.
Tiernan James C.
Borden Ladner Gervais Llp
Tiernan Communications Inc.
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