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Method for synchronized content playback

A content and content streaming technology, applied in the field of data communication, can solve problems such as inability to guarantee playback synchronization, achieve the effect of eliminating subjective feelings and solving synchronization problems

Inactive Publication Date: 2012-10-03
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of protocol can guarantee synchronization at the packet level from one sender to multiple receivers, but it still cannot guarantee the synchronization of the final playback presented to the viewer, because multiple display devices have different packet processing Process, buffer control, audio / video decoding and player rendering

Method used

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Examples

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Embodiment Construction

[0016] Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, some well-known functions and configurations may be omitted for clarity and conciseness.

[0017] According to the principles of the present invention, it addresses the problem that playing multiple media contents on two or more display devices makes the viewer feel out of sync. According to the inventor's research and survey, the viewer's subjective perception of synchronization or out-of-synchronization varies with the delay time between multiple media contents presented on two or more display devices and the visual rhythm of the media contents. different from each other. Here, specific examples of visual types of media content include: football game / movie trailer (this is fast type content), news programs broadcast by in-studio announcers (this is slow type content), etc. A more specific description of visual types can be found in ...

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Abstract

It is provided a method for providing synchronized content playback to at least two display devices at the presentation level, wherein, at least one content flow is provided to the at least two display devices. It comprises steps of receiving status report messages from the at least two display devices, wherein the status report message comprises information about the position of content flow currently being playbacked at the presentation level of a display device; and if determining the at least one content flow currently being playbacked on the two or more display devices make viewer feel out of synchronization based on the received status report messages, performing adjustment for the at least one content flow so as to eliminate viewer's subjective feeling of out of synchronization.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method for synchronous content playback. Background technique [0002] Rich media applications are becoming more and more popular because users can actively participate in them. With the convergence of TV networks and the Internet, this trend spread from computers to TV screens. Rich media applications have a reputation for user interaction: viewers can not only watch multiple types of related media content at the same time, such as video, audio, images, animations, text, etc., but also freely switch between multiple devices or Divert the media stream. For example, when a car appears in a movie, the user can obtain an advertising video about the car; while watching a museum video, the user can simultaneously obtain the virtual world content of the museum. Looking to the future of TV programming, one display device cannot provide enough display space for multiple simultaneou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/928
CPCH04N21/4122H04N21/6377H04N21/4307H04N21/44004H04N21/44227H04N21/23406H04N21/658H04N21/43615H04N21/43076H04N5/93H04N21/2401H04N21/2402H04N21/2404H04N21/2405H04N21/2407H04N21/242
Inventor 陈剑峰马小骏
Owner THOMSON LICENSING SA
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