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Multi-screen synchronized playback system and method thereof

A synchronous playback, multi-screen technology, applied in the components of the TV system, carrier index/addressing/timing/synchronization, TV and other directions, can solve problems such as high cost

Inactive Publication Date: 2020-09-04
NOVATEK MICROELECTRONICS CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the high cost

Method used

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  • Multi-screen synchronized playback system and method thereof
  • Multi-screen synchronized playback system and method thereof
  • Multi-screen synchronized playback system and method thereof

Examples

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Embodiment Construction

[0040] In the embodiment of the present invention, the playback devices in the same group can automatically control the playback progress through the network protocol to realize the function of synchronous playback without any additional hardware devices. Indicates that the playback devices in the same group join the same LAN via Ethernet or wireless network. Through the method of weighting, a user can designate one of the playback devices in a group as the master playback device, and assign other playback devices in the same group as slave playback devices. The master playback device and the slave playback device obtain accurate time through the network and the assigned / specified NTP server to achieve synchronization. The master playback device sends time information about playback (eg, start playback time information and playback time point) via a dedicated / assigned network protocol to control the playback process of the slave playback devices, thereby realizing playback syn...

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Abstract

A multi-screen synchronized playback system including a group, a network time protocol (NTP) server is provided. The group includes a plurality of playback devices connected to a local area network (LAN). One of the playback devices is designated as a master playback device, the remaining playback devices of the playback devices are designated as slave playback devices. The NTP server is connectedto the LAN and provides a standard time information for each of the playback devices. In preparing state, the master playback device sends a first type packet to each of the slave playback devices through the local area network, and the first type packet includes a starting playback time information according to the standard time information provided by the NTP server. A multi-screen synchronizedplayback method is also provided.

Description

technical field [0001] The present invention relates to a multi-screen synchronous playback system capable of realizing accurate playback synchronization without any additional hardware devices and a method thereof. Background technique [0002] In conventional technology, multiple screens are used to display the same picture / image / frame, or to display different sections / parts of the same picture / image / frame when playing a video. To avoid errors when different screens display images simultaneously, it is necessary to use an additional hardware device (eg, a graphics card) to serially connect each of the screens. Thanks to these special hardware devices, media streams can be broadcast / displayed synchronously on large screens such as concerts or outdoor advertisements. However, using additional hardware devices to enable a group of multiple screens to display different segments / portions of a frame of video requires an additional hardware device for each of the screens. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/43H04N21/4363H04N21/436H04N5/93
CPCH04N5/93H04N21/4307H04N21/43615H04N21/43637G11B27/10H04N5/76H04N21/643H04N21/43076H04N21/4302H04N21/61
Inventor 苏雍智张纮睿
Owner NOVATEK MICROELECTRONICS CORP
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