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Synchronous playback system and synchronous playback method

一种同步播放、播放装置的技术，应用在时分多路复用系统、电气元件、选择性内容分发等方向，能够解决视频框延迟误差、无法对应影像、无法同步播放等问题，达到减少延迟的效果

Active Publication Date: 2020-05-12
WISTRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the device times of the multiple playback devices are not synchronized, and in the process of data transmission, different delays will be generated due to the quality of the network connection, so even at the same specific time to play the plurality of media contents, the plurality of media contents played by the plurality of playback devices cannot really be played synchronously
For example, for the current high-resolution (resolution) (60fps) video, as long as the playback time error reaches 100 milliseconds, it will cause a delay error of 1 to 2 video frames (frame)
In this way, since the contents displayed on the multiple sub-pictures of the large screen are not synchronized, the images of the multiple sub-pictures displayed at the same time cannot correspond to the same large screen image, resulting in a poor viewing experience

Method used

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  • Synchronous playback system and synchronous playback method

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Embodiment Construction

[0028] Figure 1A is a schematic block diagram of a synchronous playback system according to an embodiment of the present invention. Please refer to Figure 1A , in this embodiment, the synchronous playback system includes a control server 100 , a plurality of playback devices 200 ( 1 )- 200 (M) and a time server 300 . The control server 100 can issue a plurality of playback instructions to instruct the plurality of playback devices 200(1)-200(M) to synchronously play the files stored in the plurality of playback devices 200(1)-200(M) at a specific time. specific media content. The implementation will be described in detail below with multiple drawings and examples.

[0029] In this embodiment, a plurality of playback devices 200(1)-200(M) can form a playback array 200, which is used to play the respectively stored media content through the plurality of playback devices 200(1)-200(M). Play a main media content jointly in a manner, wherein the multiple media contents constitu...

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Abstract

The present invention provides a synchronous playback system and a synchronous playback method. The synchronous playback method is adapted for enabling a plurality of playback devices to synchronouslyplay the media content stored by the playback devices, and includes performing a time-calibrating operation on a time server by each of the playback devices to obtain a target time error value of each of the playback devices; issuing a plurality of playback commands to the playback devices through a control server; calculating the adjusted target time of each of the playback devices according tothe target time of the received playback command and the target time error value of each of the playback devices through each of the playback devices; and playing a plurality of pieces of target mediacontent corresponding to the playback commands according to the adjusted target time of the respective playback devices through the playback devices.

Description

technical field [0001] The invention relates to a playback system, and in particular to a synchronous playback system and a synchronous playback method. Background technique [0002] Nowadays, video or advertisement playback methods often use a large screen to provide users with a better viewing experience. The general traditional method is to use multiple playing devices to respectively play a plurality of sub-pictures used to form the large picture. The plurality of sub-pictures can be shared through the hardware screen, the input terminals of all playback devices are connected to the server (server) through physical lines, and then the server is made to deliver multiple media contents corresponding to the multiple sub-pictures to the corresponding playback device. The above-mentioned traditional method has a relatively high cost because of the need to erect physical lines, and may encounter many space constraints during the process of erecting physical lines. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/43
CPCH04N21/4302H04N21/43076H04N21/4305H04J3/0664H04J3/0632H04N21/6543H04N21/242H04N21/23611H04J3/06
Inventor 朱衍印
Owner WISTRON CORP