JP2005210752A - デジタルコンテンツの配信方法およびシステム - Google Patents
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Abstract
【解決手段】サーバ施設10は、マルチメディアコンテンツをフォーマット済のデータの断片(例えば、コンテンツの1分間分に相当する大きさのデータ)に分割する。ユーザからの要求があった場合、分割したデータを、即時的視聴を可能とする所定のデータ配信基準に従いユーザの制御装置50に配信する。制御装置50は、長編映画などのマルチメディアコンテンツの1作品全体を完全に保存するための記憶容量を有する記憶装置を備えていればよい。
【選択図】図2
Description
本発明の主たる目的は、ユーザ(受信契約者)の要求に応じて即時的にコンテンツの視聴を可能とするケーブル、衛星テレビ、または他のシステムを用いてビデオやオーディオ等のマルチメディアコンテンツを配信するシステムおよび方法を提供することにある。本発明では、ノーカット長編映画等のメディアコンテンツを完全に格納する容量の記憶装置を少なくとも有し、デジタルビデオデータの記憶能力を備えるユーザ(受信契約者)の受信端末が利用される。
Mは、1つの信号に含まれる最大のチャンネル数を表す。
上述したように、本発明は、大量のコンテンツを利用するVODシステムにおいて、帯域幅の使用効率を大幅に向上させることができる。本発明の配信スケジュールの決定システムとその方法によれば、ユーザ(受信契約者)によって選択したマルチメディアコンテンツの視聴要求があるたびに、チャンネルの割り当てが行われてマルチメディアコンテンツの送信が開始される。複数の異なるユーザ(受信契約者)から同一の映画の視聴要求があった場合、本発明によれば、この映画が視聴の寸前までに配信されるようにスケジュールに追加することができる。
30…LAN 40…ネットワーク
50…制御装置 60…記録媒体
70…表示装置
Claims (45)
- サーバ施設からユーザに対してデジタルコンテンツを配信する方法において、
前記サーバ施設において、前記デジタルコンテンツの配信に先立って、該デジタルコンテンツを複数のデータの断片に分割したフォーマット済のデジタルコンテンツとして準備するステップと、
前記デジタルコンテンツを配信するための通信ネットワークを確立するステップと、
前記デジタルコンテンツの受信、保存、および再生が可能な制御装置を前記ユーザ側に設置するステップと、
前記分割されたデータの断片を所定の配信スケジュールに従って前記サーバ施設から前記ユーザ側の前記制御装置に配信する配信ステップと、
を含むことを特徴とするデジタルコンテンツの配信方法。 - 請求項1記載の方法において、前記サーバ施設において、前記デジタルコンテンツを前記複数のデータの断片に分割するステップを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記フォーマット済のデジタルコンテンツが、該デジタルコンテンツを単位時間分再生するために必要なデータに概ね相当するデータの断片をp個含み、
前記配信ステップが、前記p個のデータの断片中、n番目のデータをn×単位時間毎に配信するステップを含むことを特徴とするデジタルコンテンツの配信方法。 - 請求項1記載の方法において、さらに、サーバ施設が提供するデジタルコンテンツを選択するステップを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、さらに、前記データの断片の少なくとも1つを非再生順に配信するための配信スケジュールを決定するステップを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、さらに、前記データの断片の少なくとも1つを非再生順に配信するステップを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、さらに、制御装置が、配信された前記データの断片の少なくとも1つを非再生順に保存することを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、さらに、配信された前記データの断片が、前記ユーザが即時的に前記デジタルコンテンツを視聴するために利用可能となることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記ユーザが前記デジタルコンテンツを再生する前に、前記制御装置に配信されたデータの断片が少なくとも1つ保存されることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記ユーザが選択する前に、前記制御装置にデータの断片が少なくとも1つ保存されることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、あるデータの断片が再生されている間に、後で再生するための別のデータの断片が少なくとも1つ前記制御装置に保存されることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記制御装置が、前記デジタルコンテンツの少なくとも1作品の全部を保存する容量を有するデータメモリを備えることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記デジタルコンテンツが、ビデオ作品、オーディオ作品、およびグラフィック作品のうち、少なくとも1つを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記デジタルコンテンツの配信に、1つの配信信号の帯域幅で利用可能な数のチャンネルしか使用しないことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、さらに、少なくとも1つの配信信号をデジタルコンテンツの共通部分の配信に使用するステップを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項15記載の方法において、前記共通部分は、デジタルコンテンツが対象としている人々の層の表示、著作権表示、サウンド製作元のロゴ、および製作者のトレードマーク、サービスマークのうち、少なくとも1つを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、1つの配信信号で複数のデジタルコンテンツを提供し、このデジタルコンテンツの数が、1つの配信信号の帯域幅で利用可能なチャンネル数の範囲内の数であることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、さらに、
分割されたデータの断片の配信スケジュールに従って、最初のユーザに対して複数のチャンネルを含む1つのデジタル信号を割り当てるステップと、
前記1つのデジタル信号の前記配信スケジュールに対してユーザを追加するステップと、
前記デジタルコンテンツの配信要求があった場合、前記データの断片を前記最初のユーザと前記追加されたユーザとに同時に配信するステップと、
をさらに含むことを特徴とするデジタルコンテンツの配信方法。 - 請求項1記載の方法において、要求を行ったユーザの数、デジタルコンテンツを制御装置によって受信中のユーザの数にかかわらず、デジタルコンテンツの必要となる信号の最大の帯域幅が変更されないことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記制御装置が、ケーブルあるいは衛星通信機能を備えるセットトップボックス、またはビデオゲーム機であることを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記制御装置が、外部記憶装置、内蔵型記憶装置、着脱可能な記録媒体のうち、少なくとも1つを含むことを特徴とするデジタルコンテンツの配信方法。
- 請求項1記載の方法において、前記デジタルコンテンツを再生する際に、再生速度、再生方向、再生音量の調節が可能であることを特徴とするデジタルコンテンツの配信方法。
- サーバ施設からユーザに対してデジタルコンテンツを配信するシステムにおいて、
デジタルコンテンツデータベースと、
前記デジタルコンテンツの配信に先立って、該デジタルコンテンツを複数のデータの断片に分割したフォーマット済のデジタルコンテンツを提供するサーバ施設と、
前記デジタルコンテンツの受信、保存、および再生が可能なユーザ側の制御装置と、
前記分割されたデータの断片を所定の配信スケジュールに従って前記サーバ施設から前記ユーザ側の前記制御装置に配信するための通信ネットワークと、
を含むことを特徴とするデジタルコンテンツの配信システム。 - 請求項23記載のシステムにおいて、前記サーバ施設が、前記デジタルコンテンツを前記複数のデータの断片に分割する手段を含むことを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設は、前記フォーマット済のデジタルコンテンツが、該デジタルコンテンツを単位時間分再生するために必要なデータに概ね相当するデータの断片をp個含み、
前記p個のデータの断片中、n番目のデータをn×単位時間毎に配信することを特徴とするデジタルコンテンツの配信システム。 - 請求項23記載のシステムにおいて、前記ユーザが前記デジタルコンテンツを再生する前に、データの断片の幾つかが非再生順に配信され、前記制御装置に保存されることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記データの断片が、前記デジタルコンテンツが選択される前に配信され、前記制御装置に保存されることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記ユーザが前記デジタルコンテンツを再生する前に、データの断片が配信され、前記制御装置に保存されることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記制御装置が、ケーブルまたは衛星通信機能を備えるセットトップボックス、またはビデオゲーム機であることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記制御装置が、外部記憶装置、内蔵型記憶装置、着脱可能な記録媒体のうち、少なくとも1つを含むことを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設が、前記データの断片の少なくとも1つを非再生順に配信するための配信スケジュールを決定することを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設が、データの断片の少なくとも1つを非再生順に配信することを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記制御装置が、データの断片の少なくとも1つを非再生順に保存することを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記制御装置が、配信された前記データの断片を、前記ユーザが即時的に前記デジタルコンテンツを視聴するために利用可能とすることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記制御装置が、前記デジタルコンテンツの少なくとも1作品を完全に保存する容量を有するデータメモリを備えることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設が、前記デジタルコンテンツの配信に、1つのデジタル配信信号の帯域幅で利用可能な数のチャンネルしか使用しないことを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設が、少なくとも1つの配信信号をデジタルコンテンツの共通部分の配信に使用することを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設が、1つの配信信号で複数のデジタルコンテンツを提供し、デジタルコンテンツの数は、1つの信号の帯域幅で利用可能なチャンネル数の範囲内の数であることを特徴とするデジタルコンテンツの配信システム。
- 請求項23記載のシステムにおいて、前記サーバ施設が、
分割されたデータの断片の配信スケジュールに従って、最初のユーザに対して複数のチャンネルを含む1つのデジタル信号を割り当て、
前記1つのデジタル信号の前記配信スケジュールに対してユーザを追加し、
前記デジタルコンテンツの配信要求があった場合、前記データの断片を前記最初のユーザと前記追加されたユーザとに同時に配信するステップと、
をさらに含むことを特徴とするデジタルコンテンツの配信システム。 - 請求項23記載のシステムにおいて、要求を行ったユーザの数、コンテンツを制御装置によって受信中のユーザの数にかかわらず、前記サーバ施設が必要とする信号の最大の帯域幅が変更されないことを特徴とするデジタルコンテンツの配信システム。
- ユーザに対してデジタルコンテンツを配信するサーバ施設において、
前記デジタルコンテンツの配信に先立って、該デジタルコンテンツを複数のデータの断片に分割するデータ処理部と、
外部との通信ネットワークを確立し、所定の配信スケジュールに従って前記データの断片を前記ユーザ側に設置された受信装置と記憶装置とを備えた制御装置に対して配信する配信手段とを備え、
前記配信手段が、前記データの断片を前記ユーザに配信中に新たなユーザが追加されたとき、既に配信中のユーザと追加されたユーザに対して同一のデータの断片を配信することを特徴とするデジタルコンテンツを配信するサーバ施設。 - 請求項41記載のサーバ施設において、前記配信スケジュールは、前記データの断片を前記ユーザが再生している際に、前記ユーザが後で再生されるデータの断片を予め受信して前記記憶装置に録画できるように決定されることを特徴とするデジタルコンテンツを配信するサーバ施設。
- 請求項41記載のサーバ施設において、前記ユーザの追加は、新たなユーザの前記サーバ施設に対する要求を必要とせずに、該新たなユーザが、前記受信装置を設定することによって行われることを特徴とするデジタルコンテンツを配信するサーバ施設。
- 請求項41記載のサーバ施設において、さらに、
ユーザを登録するデータベースと、
ユーザからの要求を受信するための受信装置とを備え、
前記ユーザの追加は、新たなユーザの要求を受信したときに該新たなユーザを前記データベースに登録することによって行われることを特徴とするデジタルコンテンツを配信するサーバ施設。 - 請求項44記載のサーバ施設において、前記ユーザの追加があった場合、前記配信スケジュールを変更することを特徴とするデジタルコンテンツを配信するサーバ施設。
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US8433759B2 (en) | 2010-05-24 | 2013-04-30 | Sony Computer Entertainment America Llc | Direction-conscious information sharing |
-
2001
- 2001-01-22 US US09/765,593 patent/US8458754B2/en active Active
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2002
- 2002-01-08 EP EP10012168.0A patent/EP2280545B8/en not_active Expired - Lifetime
- 2002-01-08 EP EP02250090.4A patent/EP1225767B1/en not_active Expired - Lifetime
- 2002-01-09 JP JP2002002109A patent/JP4165686B2/ja not_active Expired - Lifetime
- 2002-01-22 KR KR1020020003520A patent/KR100570458B1/ko active IP Right Grant
- 2002-01-22 CN CNB021020914A patent/CN1321531C/zh not_active Expired - Lifetime
-
2005
- 2005-03-04 JP JP2005061185A patent/JP4160960B2/ja not_active Expired - Lifetime
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- 2008-08-20 US US12/229,281 patent/US8966557B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8966557B2 (en) | 2001-01-22 | 2015-02-24 | Sony Computer Entertainment Inc. | Delivery of digital content |
US9483405B2 (en) | 2007-09-20 | 2016-11-01 | Sony Interactive Entertainment Inc. | Simplified run-time program translation for emulating complex processor pipelines |
JP2010033575A (ja) * | 2008-07-29 | 2010-02-12 | Sony Corp | コンテンツバーストを電子デバイスに効率的に送信するためのシステム及び方法 |
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US8458754B2 (en) | 2013-06-04 |
KR100570458B1 (ko) | 2006-04-13 |
KR20020062595A (ko) | 2002-07-26 |
EP1225767B1 (en) | 2016-10-05 |
EP2280545B8 (en) | 2017-08-30 |
US20020147979A1 (en) | 2002-10-10 |
EP1225767A2 (en) | 2002-07-24 |
CN1321531C (zh) | 2007-06-13 |
EP2280545A1 (en) | 2011-02-02 |
US8966557B2 (en) | 2015-02-24 |
JP4160960B2 (ja) | 2008-10-08 |
EP1225767A3 (en) | 2005-12-14 |
US20090070842A1 (en) | 2009-03-12 |
CN1371216A (zh) | 2002-09-25 |
JP2002335509A (ja) | 2002-11-22 |
EP2280545B1 (en) | 2017-06-14 |
JP4165686B2 (ja) | 2008-10-15 |
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