Method and device for encapsulating audiovisual content streams into MPEG2 private sections, network communication protocol for IP-based local area networks, interactive application for digital television, user device containing applications, and method for the transmission of audiovisual content and data

• Main Authors: RIEIRO ALVES ROBERTO, PERRONE HERNAN RAFAEL, DE PAULA CAMPELO LUIZ DAVID SALES, DE BRITTO DAVID ESTEVAM, COUTINHO CORREIA FLAVIO AUGUSTO
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The present invention relates to a method for the transmission of audiovisual content and/or data to user devices without using digital television tuning resources, in that said content is encapsulated in MPEG2 private sections, subsequently multiplexed and transmitted over a digital television signal. The method uses an interactive application trasmitted in a digital television signal which, when executed in the digital television receiver, extracts the MPEG2 private sections containing the audiovisual content and/or data from the digital television signal and, using a local area network (LAN) connection, forwards this audiovisual content and/or data to other user devices connected to the same local area network (LAN) as the digital television receiver. Also described is a device for the transmission of audiovisual content and/or data encapsulated in the MPEG2 private section. 本发明涉及种用于向没有使用数字电视调谐资源的用户设备传送视听内容和/或数据的方法，在于所述内容被封装在MPEG2私有区段中、随后通过数字电视信号被复用并且传送。所述方法使用在数字电视信号中传送的交互式应用，其当在数字电视接收器中被执行时从数字电视信号中提取包含视听内