{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00091712","sets":["6394:7017:7034"]},"path":["7034"],"owner":"13","recid":"91712","title":["アプリケーション層マルチキャスト(ALM) による多地点配信システムのビデオ会議端末への搭載"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-04-15"},"_buckets":{"deposit":"3317f554-058d-4c5b-a3e6-641efa40852e"},"_deposit":{"id":"91712","pid":{"type":"depid","value":"91712","revision_id":0},"owners":[13],"status":"published","created_by":13},"item_title":"アプリケーション層マルチキャスト(ALM) による多地点配信システムのビデオ会議端末への搭載","author_link":["549840","549839","549841","549842","549838","549837","549843"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アプリケーション層マルチキャスト(ALM) による多地点配信システムのビデオ会議端末への搭載"}]},"item_type_id":"21","publish_date":"2013-04-15","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_21_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"パナソニック"},{"subitem_text_value":"パナソニック"},{"subitem_text_value":"パナソニック"},{"subitem_text_value":"パナソニック"},{"subitem_text_value":"パナソニック"},{"subitem_text_value":"パナソニックシステムネットワークス"},{"subitem_text_value":"パナソニックシステムネットワークス"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/91712/files/IPSJ-DP0402014.pdf","label":"IPSJ-DP0402014"},"date":[{"dateType":"Available","dateValue":"2021-12-08"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DP0402014.pdf","filesize":[{"value":"2.7 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"5"},{"tax":["include_tax"],"price":"0","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"5e805d90-01d3-4817-9321-195b36fcc3dd","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2013 by the Information Processing Society of Japan"}]},"item_21_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"吉田達哉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"バデゥゲティルミー"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"米田孝弘"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"後藤博喜"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村本衛一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金子仁"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"森田直樹"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_21_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1245124X","subitem_source_identifier_type":"NCID"}]},"item_21_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"ブロードバンド回線の普及に伴い，映像・音声による通話の利用が進んでおり，双方向のビデオ会議にとどまらず，企業の方針伝達や遠隔講義における多地点への片方向配信などへ活用が拡大している．現在，片方向配信は品質確保のために専用サーバによるシステムが利用されているが，高コストとなる課題があった．本論文では，低コストで片方向配信を実現する，ビデオ会議端末を利用したアプリケーション層マルチキャスト(ALM) 方式によるシステムについて述べる．本システムでは，ALM 方式の課題である端末離脱時のストリームの中断を端末の離脱や参加を検知する死活管理で，インターネットでの映像・音声品質確保を適応レート制御や再送によるQoS 制御で解決した．また，ネットワークエミュレーション環境および実ネットワーク上において評価実験を行い，本システムが安定した品質の片方向配信を実現できることを確認した．","subitem_description_type":"Other"}]},"item_21_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"199","bibliographic_titles":[{"bibliographic_title":"デジタルプラクティス"}],"bibliographicPageStart":"191","bibliographicIssueDates":{"bibliographicIssueDate":"2013-04-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"4"}]},"relation_version_is_last":true,"item_21_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"一般投稿論文"}]},"weko_creator_id":"13"},"id":91712,"updated":"2025-01-19T16:40:43.041715+00:00","links":{},"created":"2025-01-18T23:40:54.659118+00:00"}