Communication Apparatus, Communication Method, and Recording Medium Storing Program

a communication device and recording medium technology, applied in the field of communication apparatus and communication method for transmitting content, and recording medium for storing program, can solve the problems of short communication band, delay in the distribution of streaming data, and the plurality of communication data may jam the network, so as to achieve the effect of fine communication environmen

Inactive Publication Date: 2012-12-13
LENOVO INNOVATIONS LTD HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution effectively prevents network collapse and maintains a stable communication environment by optimizing content data distribution based on available bandwidth, ensuring smooth streaming even during multiple concurrent sessions.

Problems solved by technology

As more devices become DLNA-enabled and networking-enabled in the future, it is presumed that plural pieces of communication data may jam the network.
In particular, in a case where many unidentified users access home-equipped DLNA devices from outside to send or receive a content, plural pieces of communication data compete for and thus run short of the communication band, and cause problems such as a delay in the distribution of streaming data that allows no delay.
For example, in a case where a plurality of (“n” number of) contents that are set to the same priority degree are streaming distributed in parallel, if there is no sufficient network band available for transmitting the “n” sequences of streaming data, none of the sequences of streaming data can be maintained at a transfer rate sufficient for them to be reproduced on the client side in real time, causing communication failures on the client device, such as disorders in the reproduced images, sound interruptions, etc.

Method used

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  • Communication Apparatus, Communication Method, and Recording Medium Storing Program
  • Communication Apparatus, Communication Method, and Recording Medium Storing Program
  • Communication Apparatus, Communication Method, and Recording Medium Storing Program

Examples

Experimental program
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first embodiment

[0047]With references to FIG. 1 to FIG. 6, a first embodiment that embodies the communication apparatus according to the present invention will be explained. In the first embodiment, an example ease where the communication apparatus as a server device is connected to a network and builds up a wireless communication system with a plurality of client devices will be explained.

[0048]As shown in FIG. 1, the communication system according to the present embodiment includes a server device 12 that stores and distributes content data, client devices 13 and 14 on which content data is viewed or listened to, and a communication control device 11 that controls communications (IP communications) between the server device and the client devices. The server device 12 and the client devices 13 and 14 are connected to a network 10 via the communication control device 11. The communication control device 11 is constituted by an access point, a switching hub, or the like that supports a wireless com...

second embodiment

[0088]Next, with reference to FIG. 7 and FIG. 8, a second embodiment that embodies the communication apparatus according to the present invention will be explained. Here, points that make the present embodiment differ from the first embodiment described above will mainly be explained, and any points that the present embodiment has in common with the first embodiment will not be explained.

[0089]The communication apparatus (server device 12) according to the present embodiment includes a content sending determination control processing unit 70 shown in FIG. 7, in place of the open content information management processing unit 24 (FIG. 2 and FIG. 5) of the first embodiment

[0090]As shown in FIG. 7, the content sending determination control processing unit 70 roughly includes: a content sending determination control unit 700 that controls the process of the whole content sending determination control processing unit 70; and a content sending determining unit 701 that determines whether ...

third embodiment

[0101]Next, with reference to FIG. 9 and FIG. 10, a third embodiment that embodies the communication apparatus according to the present invention will be explained. Here, points that make the present embodiment differ from the first embodiment described above will mainly be explained and points that the present embodiment has in common with the first embodiment will not be explained.

[0102]The communication apparatus (server device 12) according to the present embodiment includes a transcode or transrate control processing unit 90 as shown in FIG. 9, in place of the open content information management processing unit 24 (FIG. 2 and FIG. 5) of the first embodiment

[0103]As shown in FIG. 9, the transcode or transrate control processing unit 90 roughly includes: a transcode or transrate control unit 900 that controls the process of the whole transcode or transrate control processing unit 90; an un-sendable content extracting unit 903 and an un-sendable content possession determining unit...

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Abstract

When a communication apparatus (server device) that includes wireless access means and can send content data by using the wireless access means starts sending content data, it calculates a communication band that remains available for the server device to perform communication, so that any content that has a rate equal to or greater than the remaining communication band may not be publicized open to and may not hence be sent to a client device.

Description

RELATED APPLICATIONS[0001]This application is a Divisional of U.S. patent application Ser. No. 12 / 414,173, filed Mar. 31, 2008, which claims priority from Application No. 2008-094341 filed in Japan on Mar. 31, 2008. The disclosure of U.S. patent application Ser. No. 12 / 414,173 is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a communication apparatus and communication method for transmitting a content, and a recording medium storing a program.[0004]2. Description of the Related Art[0005]With the spread of network data communications over the Internet, a Local Area Network (LAN), etc., many households connect their electric appliances, computers, and other peripheral devices installed in their home to a network to use a home network that allows the devices to communicate.[0006]For example, the Digital Living Network Alliance (DLNA) advocates a seamless network system that provides interoperability amo...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04L12/24H04L12/26H04M11/08H04N7/173H04N21/2385H04N21/262H04W48/16
CPCH04L43/0882H04L47/10H04L65/80H04L47/20H04L47/12
InventorKITANI, MITSUHIRO
OwnerLENOVO INNOVATIONS LTD HONG KONG