JP4571794B2 - オーディオ/ビジュアルコンポーネントを分解するための方法およびシステム - Google Patents
オーディオ/ビジュアルコンポーネントを分解するための方法およびシステム Download PDFInfo
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/169—Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
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Description
本発明は、A/Vコンポーネントを分解し、特定の場所の至る所で、または地理的に分散された区域において、このようなコンポーネントの遠隔の配置を可能にするためのシステムおよび方法を指向する。本発明は、コンポーネント間の実際の媒体に影響を受けない、ネットワーク通信プロトコルを用いることによって、ソースと行き先であるA/Vコンポーネントとの間の通信を提供する。
104 MP3を備えたPC
106 VCR
108 CD/DVDプレイヤ
110 チューナAM/FMソーススイッチャ
112 テレビジョン
114 サウンドプロセッサ
116 増幅器
118、232 左のチャンネルスピーカ
120、236 右のチャンネルスピーカ
202、402 DVDプレイヤ
204 チューナ/AMP
206 CDプレイヤ
208 パーソナルコンピュータ
210 第1型ブリック
212 第2型ブリック
214 第3型ブリック
216、 NIC
218 802.11アクセスポイント
220 IP通信クラウド
222 10/100スイッチ
224 DSLモデム
226 WAN/インターネット
228 タイムマスターシステム
230、234 第4型ブリック
238 第5型ブリック
240 ディスプレイ
302 電源
306 プロセッサ−IP−スタック
308 DAC
310 増幅器
404 デコーダ/DAC
406 PLL
408 スピーカコーン
510 クロック
512 DAC
Claims (15)
- オーディオ−ビジュアルシステムを分解するための方法であって、
非同一同期ネットワークのリンクを介しての通信のための1または2以上のデータパケットとして、ソースデバイスからオーディオ−ビジュアルストリームを提供するステップ、
前記非同一同期ネットワークを介して、前記1または2以上のデータパケットを送信するステップ、
前記データパケットを受信し、および前記オーディオ−ビジュアルストリームをその受信したデータパケットから取得するステップ、
ソースデバイスおよび多数の出力デバイスに時間情報を提供するステップであって、前記時間情報を、前記非同一同期ネットワークに接続されたタイムマスターから得るステップ、
前記時間情報を前記ソースデバイスおよび前記多数の出力デバイスで利用して、クロックの時間を同期して共通の時間を確立するステップであって、前記ソースデバイスから生じるデータパケットは時間の指示を含み、前記時間の指示は、出力デバイスがデータパケットのレンダリングをいつ開始すべきかを示すステップ、および
前記多数の出力デバイスの各々の前記レンダリングを制御するステップであって、前記時間の指示によって指示された時間に達するまで前記時間の指示に従って待機し、前記指示された時間に達した場合、前記多数の出力デバイスの各々を同期して前記データパケットを同時に再生するステップ
を備えることを特徴とする方法。 - 前記ソースデバイスおよび前記出力デバイスを、地理的に分散された場所に設置することを特徴とする請求項1記載の方法。
- 前記ソースデバイスおよび受信デバイスを、近接して設置し、およびローカルエリアネットワーク上で接続することを特徴とする請求項1記載の方法。
- 前記ネットワークは、IPネットワークであることを特徴とする請求項1記載の方法。
- 前記タイムマスターを識別するステップをさらに備えることを特徴とする請求項1記載の方法。
- オーディオ−ビジュアルシステムを分解するためのシステムであって、
非同一同期ネットワークを介して、オーディオ−ビジュアルストリームを1または2以上のデータパケットとして提供するオーディオ−ビジュアルソースデバイスと、
1または2以上のオーディオ−ビジュアル出力デバイスと、
前記オーディオ−ビジュアルソースデバイスおよび前記1または2以上のオーディオ−ビジュアル出力デバイスへ時間情報を提供するタイムマスターとを備え、
前記時間情報は、前記オーディオ−ビジュアルソースデバイスおよび前記1または2以上のオーディオ−ビジュアル出力デバイスのクロックを同期させて共通の時間を確立するために利用され、
前記オーディオ−ビジュアルソースデバイスから生じる前記オーディオ−ビジュアルストリームのデータパケットは時間の指示を含み、前記時間の指示は、オーディオ−ビジュアル出力デバイスがデータパケットのレンダリングをいつ開始すべきかを示し、
前記1または2以上のオーディオ−ビジュアル出力デバイスの各々のレンダリングの制御は、前記時間の指示によって指示された時間に達するまで前記時間の指示に従って待機し、前記指示された時間に達した場合、前記多数のオーディオ−ビジュアル出力デバイスの各々を同期して前記データパケットを同時に再生する
ことを特徴とするシステム。 - ネットワークインターフェースコンポーネントとオーディオ−ビジュアルコンポーネントとのプロトコルの変換によって、前記非同一同期コンピュータネットワークとオーディオ−ビジュアルシステムの回路との間のやり取りを提供するハードウェアおよびソフトウェアコンポーネントのグループの1または2以上のブリックをさらに備え、
前記多数のオーディオ−ビジュアル出力デバイスの各々は、前記ブリックの1つを介して、前記非同一同期コンピュータネットワークに接続される
ことを特徴とする請求項6記載のシステム。 - 前記1または2以上のブリックにより、前記1または2以上の出力デバイス上の前記オーディオ−ビジュアルストリームにタイミング同期を提供することを特徴とする請求項7記載のシステム。
- 前記1または2以上のブリックは、前記1または2以上のオーディオ−ビジュアル出力デバイスとは別個のコンポーネントであることを特徴とする請求項7記載のシステム。
- 前記1または2以上のブリックを、前記1または2以上のオーディオ−ビジュアル出力デバイスへ組込むことを特徴とする請求項7記載のシステム。
- 前記1または2以上のブリックは第1および第2のブリックを備え、
前記オーディオ−ビジュアルソースデバイスは、前記オーディオ−ビジュアルストリームを生成し、前記第1のブリックを介して前記ネットワークに結合され、
前記多数のオーディオ−ビジュアル出力デバイスは、第2のブリックを介して、前記ネットワークに接続される
ことを特徴とする請求項7記載のシステム。 - 前記第2のブリックにより、前記1または2以上のオーディオ−ビジュアル出力デバイス上の前記オーディオ−ビジュアルストリームに対してタイミング同期を提供することを特徴とする請求項11記載のシステム。
- プロセッサ、メモリおよびオペレーティング環境を有するコンピュータシステムをさらに備え、請求項1乃至5のいずれか記載の方法を実行可能な請求項6記載のシステム。
- 請求項1乃至5の何れか記載の方法を実行するためのコンピュータ実行可能命令を格納するコンピュータ可読記憶媒体。
- 請求項1乃至5の何れか記載の方法を実行するためのコンピュータ実行可能命令を有するコンピュータプログラム。
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US10/306,340 US7295548B2 (en) | 2002-11-27 | 2002-11-27 | Method and system for disaggregating audio/visual components |
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JP2004180323A JP2004180323A (ja) | 2004-06-24 |
JP2004180323A5 JP2004180323A5 (ja) | 2007-01-18 |
JP4571794B2 true JP4571794B2 (ja) | 2010-10-27 |
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US (1) | US7295548B2 (ja) |
EP (1) | EP1424827B1 (ja) |
JP (1) | JP4571794B2 (ja) |
KR (1) | KR100894202B1 (ja) |
CN (1) | CN1520118B (ja) |
AT (1) | ATE347226T1 (ja) |
BR (1) | BR0305280A (ja) |
DE (1) | DE60310017T2 (ja) |
HK (1) | HK1066355A1 (ja) |
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