CONTENT DISTRIBUTION DEVICE, CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION METHOD, AND PROGRAM
PROBLEM TO BE SOLVED: To optimize a reception success rate and video quality in accordance with a change in a communication environment.SOLUTION: A content distribution device comprises: a distribution data transmission part for transmitting content data to be broadcast-distributed to a plurality of...
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| creator | OIKAWA TERUKI HONDA TAKATOMO SUZUKI KENICHIRO |
| description | PROBLEM TO BE SOLVED: To optimize a reception success rate and video quality in accordance with a change in a communication environment.SOLUTION: A content distribution device comprises: a distribution data transmission part for transmitting content data to be broadcast-distributed to a plurality of terminals; a reception situation acquisition part for acquiring reception success degree information indicating a reception success degree of content data in each terminal; a reception environment analysis part for analyzing a reception environment indicating an average reception success degree in a plurality of terminals on the basis of the reception success degree information; a parameter determination part for determining a distribution rate and an FEC(Forward Error Correction) application rate in broadcast-distribution on the basis of the reception environment; a distribution rate switching part for switching a distribution rate in broadcast-distribution of the content data to the distribution rate determined by the parameter determination part; and an FEC application rate switching part for switching the FEC application rate in broadcast-distribution of the content data to the FEC application rate determined by the parameter determination part.SELECTED DRAWING: Figure 4
【課題】通信環境の変化に応じて受信成功率と映像品質とを最適化すること。【解決手段】コンテンツ配信装置は、複数の端末へ同報配信するコンテンツデータを送出する配信データ送出部と、各端末におけるコンテンツデータの受信成功度を示す受信成功度情報を取得する受信状況取得部と、受信成功度情報に基づいて、複数の端末における平均的な受信成功度を示す受信環境を解析する受信環境解析部と、受信環境に基づいて同報配信における配信レートとＦＥＣ付与率とを決定するパラメータ決定部と、コンテンツデータの同報配信における配信レートをパラメータ決定部によって決定された配信レートに切り替える配信レート切替部と、コンテンツデータの同報配信におけるＦＥＣ付与率をパラメータ決定部によって決定されたＦＥＣ付与率に切り替えるＦＥＣ付与率切替部とを備える。【選択図】図４ |
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【課題】通信環境の変化に応じて受信成功率と映像品質とを最適化すること。【解決手段】コンテンツ配信装置は、複数の端末へ同報配信するコンテンツデータを送出する配信データ送出部と、各端末におけるコンテンツデータの受信成功度を示す受信成功度情報を取得する受信状況取得部と、受信成功度情報に基づいて、複数の端末における平均的な受信成功度を示す受信環境を解析する受信環境解析部と、受信環境に基づいて同報配信における配信レートとＦＥＣ付与率とを決定するパラメータ決定部と、コンテンツデータの同報配信における配信レートをパラメータ決定部によって決定された配信レートに切り替える配信レート切替部と、コンテンツデータの同報配信におけるＦＥＣ付与率をパラメータ決定部によって決定されたＦＥＣ付与率に切り替えるＦＥＣ付与率切替部とを備える。【選択図】図４</description><language>eng ; jpn</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION ; WIRELESS COMMUNICATIONS NETWORKS</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170601&DB=EPODOC&CC=JP&NR=2017098796A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170601&DB=EPODOC&CC=JP&NR=2017098796A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OIKAWA TERUKI</creatorcontrib><creatorcontrib>HONDA TAKATOMO</creatorcontrib><creatorcontrib>SUZUKI KENICHIRO</creatorcontrib><title>CONTENT DISTRIBUTION DEVICE, CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION METHOD, AND PROGRAM</title><description>PROBLEM TO BE SOLVED: To optimize a reception success rate and video quality in accordance with a change in a communication environment.SOLUTION: A content distribution device comprises: a distribution data transmission part for transmitting content data to be broadcast-distributed to a plurality of terminals; a reception situation acquisition part for acquiring reception success degree information indicating a reception success degree of content data in each terminal; a reception environment analysis part for analyzing a reception environment indicating an average reception success degree in a plurality of terminals on the basis of the reception success degree information; a parameter determination part for determining a distribution rate and an FEC(Forward Error Correction) application rate in broadcast-distribution on the basis of the reception environment; a distribution rate switching part for switching a distribution rate in broadcast-distribution of the content data to the distribution rate determined by the parameter determination part; and an FEC application rate switching part for switching the FEC application rate in broadcast-distribution of the content data to the FEC application rate determined by the parameter determination part.SELECTED DRAWING: Figure 4
【課題】通信環境の変化に応じて受信成功率と映像品質とを最適化すること。【解決手段】コンテンツ配信装置は、複数の端末へ同報配信するコンテンツデータを送出する配信データ送出部と、各端末におけるコンテンツデータの受信成功度を示す受信成功度情報を取得する受信状況取得部と、受信成功度情報に基づいて、複数の端末における平均的な受信成功度を示す受信環境を解析する受信環境解析部と、受信環境に基づいて同報配信における配信レートとＦＥＣ付与率とを決定するパラメータ決定部と、コンテンツデータの同報配信における配信レートをパラメータ決定部によって決定された配信レートに切り替える配信レート切替部と、コンテンツデータの同報配信におけるＦＥＣ付与率をパラメータ決定部によって決定されたＦＥＣ付与率に切り替えるＦＥＣ付与率切替部とを備える。【選択図】図４</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><subject>WIRELESS COMMUNICATIONS NETWORKS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZEhy9vcLcfULUXDxDA4J8nQKDfH091NwcQ3zdHbVUcAqGRwZHOLqi0PS1zXEw99FR8HRz0UhIMjfPcjRl4eBNS0xpziVF0pzMyi5uYY4e-imFuTHpxYXJCan5qWWxHsFGBkYmhtYWphbmjkaE6UIAKXYNRU</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>OIKAWA TERUKI</creator><creator>HONDA TAKATOMO</creator><creator>SUZUKI KENICHIRO</creator><scope>EVB</scope></search><sort><creationdate>20170601</creationdate><title>CONTENT DISTRIBUTION DEVICE, CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION METHOD, AND PROGRAM</title><author>OIKAWA TERUKI ; HONDA TAKATOMO ; SUZUKI KENICHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2017098796A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2017</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><topic>WIRELESS COMMUNICATIONS NETWORKS</topic><toplevel>online_resources</toplevel><creatorcontrib>OIKAWA TERUKI</creatorcontrib><creatorcontrib>HONDA TAKATOMO</creatorcontrib><creatorcontrib>SUZUKI KENICHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OIKAWA TERUKI</au><au>HONDA TAKATOMO</au><au>SUZUKI KENICHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CONTENT DISTRIBUTION DEVICE, CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION METHOD, AND PROGRAM</title><date>2017-06-01</date><risdate>2017</risdate><abstract>PROBLEM TO BE SOLVED: To optimize a reception success rate and video quality in accordance with a change in a communication environment.SOLUTION: A content distribution device comprises: a distribution data transmission part for transmitting content data to be broadcast-distributed to a plurality of terminals; a reception situation acquisition part for acquiring reception success degree information indicating a reception success degree of content data in each terminal; a reception environment analysis part for analyzing a reception environment indicating an average reception success degree in a plurality of terminals on the basis of the reception success degree information; a parameter determination part for determining a distribution rate and an FEC(Forward Error Correction) application rate in broadcast-distribution on the basis of the reception environment; a distribution rate switching part for switching a distribution rate in broadcast-distribution of the content data to the distribution rate determined by the parameter determination part; and an FEC application rate switching part for switching the FEC application rate in broadcast-distribution of the content data to the FEC application rate determined by the parameter determination part.SELECTED DRAWING: Figure 4
【課題】通信環境の変化に応じて受信成功率と映像品質とを最適化すること。【解決手段】コンテンツ配信装置は、複数の端末へ同報配信するコンテンツデータを送出する配信データ送出部と、各端末におけるコンテンツデータの受信成功度を示す受信成功度情報を取得する受信状況取得部と、受信成功度情報に基づいて、複数の端末における平均的な受信成功度を示す受信環境を解析する受信環境解析部と、受信環境に基づいて同報配信における配信レートとＦＥＣ付与率とを決定するパラメータ決定部と、コンテンツデータの同報配信における配信レートをパラメータ決定部によって決定された配信レートに切り替える配信レート切替部と、コンテンツデータの同報配信におけるＦＥＣ付与率をパラメータ決定部によって決定されたＦＥＣ付与率に切り替えるＦＥＣ付与率切替部とを備える。【選択図】図４</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS |
| title | CONTENT DISTRIBUTION DEVICE, CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION METHOD, AND PROGRAM |
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