JP7275212B2 - 送信方法、受信方法、送信装置および受信装置 - Google Patents
送信方法、受信方法、送信装置および受信装置 Download PDFInfo
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- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
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Description
本発明者は、「背景技術」の欄において記載した、非特許文献1の送信方法および受信方法に関し、以下の問題が生じることを見出した。
図2は、本実施の形態におけるTEMIアクセスユニットのシンタックスの一例を示す図である。
以下、本実施の形態における変形例について説明する。
図7A~図7Cは、本変形例に係るTEMIアクセスユニットのシンタックスを示す図である。
ここで、スプライス区間における再生方法について説明する。
ここで、TEMIストリームの属性情報について説明する。
TEMIアクセスユニットにおけるデスクリプタの格納順序は予め規定されていてもよい。例えば、参照先のコンテンツのタイムラインが変化しなければ、temi_timeline_descriptorのサイズは固定されている。したがって、temi_timeline_descriptor、temi_location_descriptorの順に各デスクリプタをTEMIアクセスユニットに格納する。これにより、TEMIアクセスユニットにおけるtemi_location_descriptorの開始位置は固定となる。したがって、temi_timeline_descriptorのtemi_descr_tagとtemi_descr_lengthを解析してtemi_location_descriptorの開始位置を決定する処理を省くことができ、受信装置200の処理を低減することができる。
11 送信部
20,200 受信装置
21 受信部
Claims (4)
- 第1のコンテンツの再生に用いる第1のタイムラインと、前記第1のコンテンツと同期して再生される第2のコンテンツの再生に用いられる第2のタイムラインとの対応関係において前記第1のタイムラインが不連続であるかに応じて、当該対応関係が更新されたか否かを示す更新識別情報と、
基準クロックにおける時刻を示す時刻情報とを送信する
送信方法。 - 第1のコンテンツの再生に用いる第1のタイムラインと、前記第1のコンテンツと同期して再生される第2のコンテンツの再生に用いられる第2のタイムラインとの対応関係において前記第1のタイムラインが不連続であるかに応じて、当該対応関係が更新されたか否かを示す更新識別情報と、
基準クロックにおける時刻を示す時刻情報とを受信し、
前記更新識別情報と前記時刻情報とに基づいて、前記第1のコンテンツと前記第2のコンテンツとを再生する
受信方法。 - 第1のコンテンツの再生に用いる第1のタイムラインと、前記第1のコンテンツと同期して再生される第2のコンテンツの再生に用いられる第2のタイムラインとの対応関係において前記第1のタイムラインが不連続であるかに応じて、当該対応関係が更新されたか否かを示す更新識別情報と、
基準クロックにおける時刻を示す時刻情報とを送信する送信部
を備える送信装置。 - 第1のコンテンツの再生に用いる第1のタイムラインと、前記第1のコンテンツと同期して再生される第2のコンテンツの再生に用いられる第2のタイムラインとの対応関係において前記第1のタイムラインが不連続であるかに応じて、当該対応関係が更新されたか否かを示す更新識別情報と、
基準クロックにおける時刻を示す時刻情報とを受信する受信部と、
前記更新識別情報と前記時刻情報とに基づいて、前記第1のコンテンツと前記第2のコンテンツとを再生する再生部と、
を備える受信装置。
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US201361889728P | 2013-10-11 | 2013-10-11 | |
US61/889,728 | 2013-10-11 | ||
JP2014191896A JP6510205B2 (ja) | 2013-10-11 | 2014-09-19 | 送信方法、受信方法、送信装置および受信装置 |
JP2019072292A JP6737922B2 (ja) | 2013-10-11 | 2019-04-04 | 送信方法、受信方法、送信装置および受信装置 |
JP2020122241A JP6935552B2 (ja) | 2013-10-11 | 2020-07-16 | 送信方法、受信方法、送信装置および受信装置 |
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Citations (4)
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JP2008535298A (ja) | 2005-03-25 | 2008-08-28 | トムソン ライセンシング | デジタルデータフローサーバーへコマンドを送出する方法、及び当該方法を使用する装置 |
JP2010245974A (ja) | 2009-04-08 | 2010-10-28 | Panasonic Corp | デジタルテレビ放送再生装置およびその再生方法 |
JP2010541354A (ja) | 2007-09-28 | 2010-12-24 | トムソン ライセンシング | 他の装置に送信された受信ストリームを同期可能な通信技術 |
JP2012010009A (ja) | 2010-06-23 | 2012-01-12 | Nippon Hoso Kyokai <Nhk> | 送信装置、サーバ装置、および受信装置 |
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JP2007081780A (ja) * | 2005-09-14 | 2007-03-29 | Seiko Epson Corp | 再生制御装置、表示装置および再生システム |
US20090055406A1 (en) * | 2006-02-07 | 2009-02-26 | Norimitsu Kubono | Content Distribution System |
KR20120084252A (ko) * | 2011-01-19 | 2012-07-27 | 삼성전자주식회사 | 복수의 실시간 전송 스트림을 수신하는 수신 장치와 그 송신 장치 및 멀티미디어 컨텐츠 재생 방법 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008535298A (ja) | 2005-03-25 | 2008-08-28 | トムソン ライセンシング | デジタルデータフローサーバーへコマンドを送出する方法、及び当該方法を使用する装置 |
JP2010541354A (ja) | 2007-09-28 | 2010-12-24 | トムソン ライセンシング | 他の装置に送信された受信ストリームを同期可能な通信技術 |
JP2010245974A (ja) | 2009-04-08 | 2010-10-28 | Panasonic Corp | デジタルテレビ放送再生装置およびその再生方法 |
JP2012010009A (ja) | 2010-06-23 | 2012-01-12 | Nippon Hoso Kyokai <Nhk> | 送信装置、サーバ装置、および受信装置 |
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JP2021192528A (ja) | 2021-12-16 |
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