Oki Electric Industry Co., Ltd.

Koji Sakurada

Satoshi Nakagawa

To reduce a waste of a network bandwidth and construct an efficient distribution tree. The present invention relates to a communication device that is capable of redistributing multimedia data received from a distribution source device or another communication device to one or more other communication devices, the communication device including: a playback processing section configured to play and output corresponding media in accordance with playback media information indicating a media type designated by the own device; a media information storage section configured to store the playback media information of the own device and media information including respective pieces of playback media information of a child node and a descendant node on a route where the own device exists in the distribution tree; a media type control section configured to control a redistribution media type on a basis of the respective pieces of playback media information of the child node and the descendant node included in the media information; and a redistribution section configured to redistribute, to the child node, media data selected from the multimedia data on a basis of the redistribution media type.

Communication device, communication control device, and data distribution system

There is provided an information processing system, comprising: a viewing apparatus equipped with a content reproduction unit that reproduces content containing video data or audio data; a radio communication apparatus equipped with a storage unit in which user data correlated to a user to whom said radio communication apparatus belongs are stored and a data transmitting unit that transmits viewer data that include part of or all of said user data stored in said storage unit; and an information processing apparatus equipped with an analyzing unit that analyzes, based upon the user data, a viewership effect of the content reproduced by said viewing apparatus and a content distribution unit that distributes content data to be used to reproduce the content to said viewing apparatus.

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Tokyo, Japan

Koji Sakurada