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The method for IPTV STB/unicast seamless switching based on RTP protocol

A set-top box and multicast technology, applied in electrical components, transmission systems, pulse modulation TV signal transmission, etc., can solve problems such as discontinuous frames before and after, and achieve good application value and good viewing experience

Inactive Publication Date: 2007-08-01
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for group unicast switching of a set-top box, and overcome the problem of discontinuous frames before and after multicast and unicast switching in IPTV services, thereby realizing fast and seamless switching of group unicast

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  • The method for IPTV STB/unicast seamless switching based on RTP protocol
  • The method for IPTV STB/unicast seamless switching based on RTP protocol
  • The method for IPTV STB/unicast seamless switching based on RTP protocol

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Embodiment Construction

[0033] The RTP protocol-based IPTV set-top box group / unicast seamless switching method of the present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Before describing the RTP protocol-based IPTV set-top box group / unicast seamless switching method of the present invention, the application scenario of the present invention will be described first.

[0035] As shown in FIG. 1 , the group / unicast seamless switching method of the present invention involves devices in an IPTV system including a terminal device 1 , a service router 2 , a control server 3 and a media server 4 .

[0036] Among them, the terminal device 1 is used to receive multimedia data and decode and display it, supports audio and video decoding in multiple formats, uses a TV as a display device, and uses a remote control as a user input device to realize human-computer interaction.

[0037] The service router 2 can control the mu...

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Abstract

The disclosed IPTV set-top box (STB) multicast / unicast seamless switch method based on RTP protocol comprises: to switch multicast into unicast, receiving multicast data to decode and display, stopping the decoding when receiving switch command, deciding whether the last data frame integrated, yes to send request for leaving multicast, or else continuing to receive data package; after leaving multicast, requesting unicast uniform resource locator, recovering decoder; requesting unicast data, deciding the time stamp of received data to abandon the data if the stamp not less than the last stamp during multicast process or else send data into decoder to display.

Description

technical field [0001] The invention relates to the field of IPTV, in particular to the technical field of terminals for IPTV services. Background technique [0002] The new IPTV service based on IP network can not only enable operators to protect their revenue from traditional voice and data services while providing users with new value-added services, but also enable operators to compete with cable TV operators by providing a more comprehensive and interactive full set of services. Compete and win users. Unlike broadcast programs transmitted via wireless or copper cables, IPIV transmits high-quality video programs to user TV terminals through broadband IP networks, bringing a brand-new entertainment experience to TV users. The main feature of IPTV is its interactivity and real-time performance. IPTV is not only different from traditional cable TV, but also different from digital TV which is currently emerging. Through IPTV services, users can get high-quality (close to ...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04L29/06
Inventor 王劲林孙鹏朱小勇胡建良胡琳琳
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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