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Synchronous Publisher

A technology for publishing servers and clients, which is applied in the direction of instruments, selective content distribution, digital transmission systems, etc., and can solve problems such as loss of mutual connectivity, inability of DLNA servers to switch to synchronous/asynchronous for the same content, undisclosed associations, etc.

Inactive Publication Date: 2018-10-09
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the DLNA server cannot switch the same content to sync / async based on the request from the DLNA client
[0003] On the other hand, outside the DLNA standard, a structure for synchronous distribution is disclosed (for example, refer to Patent Document 1), but the server and the client are designed for exclusive use, and the connection with the DLNA standard is not disclosed.
Therefore, in such a system, there is a possibility that the interconnectivity with devices corresponding to the existing DLNA standard is lost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0025] figure 1 It is a configuration diagram showing a synchronous delivery system including a synchronous delivery server according to Embodiment 1 of the present invention.

[0026] figure 1 The shown synchronous distribution server 100 has: a content list management unit 101, a content DB control unit 102, a content database (content DB) 103, a content list distribution unit 104, a UPnP control unit 105, a communication interface 106, a stream distribution control unit 107, Synchronous distribution control unit 108 , HTTP server 109 , stream management unit 110 , content data 111 , synchronous / asynchronous cache 112 , and distribution status management unit 113 , and the synchronous distribution server 100 is connected to DLNA client 200 via LAN 300 . Here, the synchronization distribution server 100 is a device (DMS) having a function of a digital media server device according to the DLNA standard, and the DLNA client 200 is a DLNA media player (DMP) according to the DLN...

Embodiment approach 2

[0093] Embodiment 2 corresponds to trick playback (time designation search, byte designation search) in DLNA. Figure 7 The configuration of the synchronous delivery system in Embodiment 2 is shown in .

[0094] The synchronous distribution server 100a of Embodiment 2 includes: a content list management unit 101a, a content DB control unit 102, a content database 103a, a content list distribution unit 104, a UPnP control unit 105, a communication interface 106, a stream distribution control unit 107, and a synchronous distribution control unit 107. unit 108 , HTTP server 109 , stream management unit 110 , content data 111 , synchronous / asynchronous cache 112 , distribution status management unit 113 , and special reproduction control unit 114 .

[0095] Here, the special playback control unit 114 is a unit that controls the special playback in the synchronous distribution server 100a, and, similarly to conventional DLNA-compatible devices, uses each query included in the HTTP ...

Embodiment approach 3

[0099] In Embodiment 2, trick playback operations are accepted from all DLNA client devices playing back the same content, but trick playback permission control section 115 is added in Embodiment 3 in order to limit operable DLNA clients. Figure 8 The structure of the synchronous delivery system of Embodiment 3 is shown in .

[0100] Figure 8 The shown synchronous distribution server 100b has: a content list management unit 101b, a content DB control unit 102, a content database 103a, a content list distribution unit 104, a UPnP control unit 105, a communication interface 106, a stream distribution control unit 107a, a synchronization distribution control unit 108 , HTTP server 109 , stream management unit 110 , content data 111 , synchronous / asynchronous cache 112 , distribution status management unit 113 , special reproduction control unit 114 , and special reproduction permission control unit 115 .

[0101] The special playback permission control unit 115 is a unit that ...

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PUM

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Abstract

A content list management unit (101) manages a list of contents to be delivered to a DLNA client (200) as a content list. The stream distribution control unit (107) distributes the content stream request upon receiving it from the DLNA client (200). Here, in the distribution status managed by the distribution status management unit (113), if the content is not being distributed to other DLNA clients (200), the content list management unit (101) uses it as the content for synchronization. Register in the content list.

Description

technical field [0001] The present invention relates to a synchronous distribution server that performs synchronous distribution from a DLNA server device to a DLNA client device among DLNA compatible devices conforming to the Digital Living Network Alliance (Digital Living Network Alliance) (hereinafter referred to as DLNA) standard. Background technique [0002] Currently, in the DLNA standard, simultaneous delivery of the same content from a DLNA server that stores content to a DLNA client is not specified, and has not yet been realized in existing devices. In addition, the synchronous distribution targeted by the present invention means that the DLNA server synchronously distributes the same content to a plurality of DLNA clients. Also, the DLNA server cannot switch the same content to sync / async based on the request from the DLNA client. [0003] On the other hand, a structure for synchronous delivery is disclosed outside the DLNA standard (for example, refer to Patent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/436G06F13/00H04N21/44
CPCH04L12/2812H04N21/4334H04N21/43615H04L2012/2849H04L65/70H04L65/612
Inventor 坂口广树花田武彦秋山卓见三浦绅
Owner MITSUBISHI ELECTRIC CORP