Title:
AUDIO AND VIDEO COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2008/016072
Kind Code:
A1
Abstract:
It is an object to obtain an audio and video communication system that can simultaneously carry out transmitting and receiving between a large number of nodes and that can flexibly deal with participation or release of a new node. The audio and video communication system couples many nodes with complete binary tree structure. When the complete binary tree structure composes a group, a root node links a new node to a left subordinate node connecting portion and adds 1 to weight information of the left subordinate node if the left subordinate node connecting portion is vacant; the root node links the new node to a right subordinate node connecting portion and adds 1 to weight information of the right subordinate node if the left subordinate node connecting portion is not vacant and the right subordinate node connecting portion is vacant; or otherwise and if the weight information of the left subordinate node is not more than that of the right subordinate, the root node inquires of the left subordinate node addition of a new node and adds 1 to the weight information of the left subordinate node; and if the weight information of the left subordinate node is more than that of the right subordinate, the root node inquires of the right subordinate node addition of a new node and adds 1 to the weight information of the right subordinate node.
Inventors:
YAMANOUE TAKASHI (JP)
Application Number:
PCT/JP2007/065051
Publication Date:
February 07, 2008
Filing Date:
August 01, 2007
Export Citation:
Assignee:
UNIV KAGOSHIMA (JP)
NARA INFORMATION SYSTEM CO LTD (JP)
YAMANOUE TAKASHI (JP)
NARA INFORMATION SYSTEM CO LTD (JP)
YAMANOUE TAKASHI (JP)
International Classes:
H04L12/56; H04L12/44; H04M3/00; H04N1/00
Foreign References:
| JPH0884157A | 1996-03-26 |
Other References:
YAMANOUE T.: "P2P Gijutsu o Riyo shita Bunsan System-jo no Jitsujikan Sosa Kyoyu System (A System Which Shares the Common Operation on a Distributed System in Realtime Using P2P Technology)", TRANSACTIONS OF INFORMATION PROCESSING SOCIETY OF JAPAN, vol. 46, no. 2, 15 February 2005 (2005-02-15), pages 392 - 402, XP003021017
KUNICHIKA Y. ET AL.: "IN2003-210 Yobi Oya Tansaku Kino o Yushita Application Level Multicast (Application Level Multicast with Backup Parent Searching Function)", IEICE TECHNICAL REPORT, vol. 103, no. 691, 26 February 2004 (2004-02-26), pages 7 - 12, XP003021018
KUNICHIKA Y. ET AL.: "IN2003-210 Yobi Oya Tansaku Kino o Yushita Application Level Multicast (Application Level Multicast with Backup Parent Searching Function)", IEICE TECHNICAL REPORT, vol. 103, no. 691, 26 February 2004 (2004-02-26), pages 7 - 12, XP003021018
Attorney, Agent or Firm:
MORISHITA, Takekazu et al. (2-18 Minamihommachi 4-chome, Chuo-ku, Osaka-sh, Osaka 54, JP)
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