JPH10500822A - 複数のデータストリームの統計的多重化方法 - Google Patents
複数のデータストリームの統計的多重化方法Info
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- JPH10500822A JPH10500822A JP7530375A JP53037595A JPH10500822A JP H10500822 A JPH10500822 A JP H10500822A JP 7530375 A JP7530375 A JP 7530375A JP 53037595 A JP53037595 A JP 53037595A JP H10500822 A JPH10500822 A JP H10500822A
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- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.通信チャネルへのアクセスについて競合する複数のデータストリームの統計 的多重化方法であって、 a)統計処理マルチプレクサのメモリにスタティックテーブルを設置するスタ ティックテーブル設置過程であって、前記スタティックテーブルが、所定の時間 間隔内に前記通信チャネル上を伝送され得る各データ単位に対するエントリを有 し、 i)前記スタティックテーブル内のエントリを、前記複数のデータストリー ムの1つに割り振る過程と、 ii)前記エントリが、可変レートのデータストリームに割り振りされた場 合、前記エントリに所定の符号を格納する過程と、 iii)前記エントリが、固定レートのデータストリームに割り振りされた 場合、前記エントリに、前記固定レートデータストリームを特定するポインタを 格納する過程と、 iv)前記スタティックテーブル内の各エントリに対し、i)からiii) までの各前記過程を反復する過程とを有する、 該スタティックテーブル設置過程と、 b)前記通信チャネル上に次のデータ単位を送る前記複数のデータストリーム のなかから1つのデータストリームを選択するために、前記スタティックテーブ ル内の各テーブルエントリを使用する過程とを有することを特徴とする複数のデ ータストリームの統計的多重化方法。 2.ダイナミックテーブルを設置する過程であって、 i)前記ダイナミックテーブル内のエントリを、A)前記複数のデータスト リームのなかの前記可変レートデータストリームの1つと、B)アイドルデータ 単位との何れかに割り振る過程と、 ii)前記エントリが前記可変レートデータストリームに割り振ら れるとき、前記可変レートデータストリームに対するポインタを、前記エントリ に格納する過程と、 iii)前記ダイナミックテーブル内の各エントリに対し、i)からii) までの各前記過程を反復する過程とを更に有することを特徴とする請求項1に記 載の複数のデータストリームの統計的多重化方法。 3.前記スタティックテーブル内の各エントリを使用する前記過程が、 前記所定の符号を含む前記スタティックテーブルにおけるエントリを検出した とき、前記ダイナミックテーブル内のエントリにアクセスして、前記通信チャネ ル上に次のデータ単位を送る前記複数のデータストリームのなかから1つの可変 レートデータストリームを選択する過程を更に含むことを特徴とする請求項2に 記載の複数のデータストリームの統計的多重化方法。 4.所定の範囲外に質測定値パラメータを有する各前記可変レートデータストリ ームのために、前記通信チャネル上を伝送すべく割り振られるデータ単位の数を 調節する過程を更に有することを特徴とする請求項3に記載の複数のデータスト リームの統計的多重化方法。 5.前記通信チャネル上を伝送すべく割り振られるデータ単位の、調節された前 記数を用いて、第2ダイナミックテーブルを設置する過程を更に有することを特 徴とし、 前記第2ダイナミックテーブルを設置する過程が、 i)前記第2ダイナミックテーブル内のエントリを、A)前記複数のデータ ストリームのなかの前記可変レートデータストリームの1つと、B)アイドルデ ータ単位との何れかに割り振る過程と、 ii)前記エントリが前記可変レートデータストリームに割り振られるとき 、前記可変レートデータストリームに対するポインタを、前記エントリに格納す る過程と、 iii)前記第2ダイナミックテーブル内の各エントリに対し、i)からi i)までの各前記過程を反復する過程とを更に有することを特徴とする請求項4 に記載の複数のデータストリームの統計的多重化方法。 6.前記ダイナミックテーブルから前記第2ダイナミックテーブルへの切替えを 行う過程を更に有することを特徴とする請求項5に記載の複数のデータストリー ムの統計的多重化方法。 7.前記ダイナミックテーブルを設置する過程が、1つのウィンドウにつき一回 実行されることを特徴とする請求項2に記載の複数のデータストリームの統計的 多重化方法。 8.各前記可変レートデータストリームのためにデータを収集し、前記可変レー トデータストリームを特徴づけるパラメータを生成する過程を更に有することを 特徴とする請求項3に記載の複数のデータストリームの統計的多重化方法。 9.前記可変レートデータストリームを特徴づける前記パラメータを、各可変レ ートデータストリームに対して生成する過程を更に含むことを特徴とする請求項 8に記載の複数のデータストリームの統計的多重化方法。 10.前記パラメータが、ひずみ測定値を含むことを特徴とする複数のデータス トリームの統計的多重化方法。 11.所定の範囲外に質測定値パラメータを用いて、各前記可変レートデータス トリームに対して前記通信チャネル上を伝送すべく割り振られるデータ単位の数 を調節する過程を更に有することを特徴とする請求項9に記載の複数のデータス トリームの統計的多重化方法。 12.前記所定の範囲の下限が、第1ヒステリシス係数とひずみパラメータとの 積であることを特徴とする請求項11に記載の複数のデータストリームの統計的 多重化方法。 13.前記所定の範囲の上限が、第2ヒステリシス係数とひずみパラメータとの 積であることを特徴とする請求項11に記載の複数のデータストリームの統計的 多重化方法。 14.前記可変レートデータストリームのそれぞれのために前記通信チャネル上 を伝送すべく割り振られるデータ単位の、調節された前記数を用いて、第2ダイ ナミックテーブルを設置する過程を更に有することを特徴とし、 前記第2ダイナミックテーブルを設置する過程が、 i)前記第2ダイナミックテーブル内のエントリを、A)前記複数のデータ ストリームのなかの前記可変レートデータストリームの1つと、B)アイドルデ ータ単位との何れかに割り振る過程と、 ii)前記エントリが前記可変レートデータストリームに割り振られるとき 、前記可変レートデータストリームに対するポインタを、前記エントリに格納す る過程と、 iii)前記第2ダイナミックテーブル内の各エントリに対し、i)からi i)までの各前記過程を反復する過程とを更に有することを特徴とする請求項1 1に記載の複数のデータストリームの統計的多重化方法。 15.前記ダイナミックテーブルから前記第2ダイナミックテーブルへの切替え を行う過程を更に有することを特徴とする請求項14に記載の複数のデータスト リームの統計的多重化方法。 16.前記複数のデータストリームが、符号化映像データストリームを含むこと を特徴とする請求項3に記載の複数のデータストリームの統計的多重化方法。 17.通信チャネルのアクセスを共有する複数の符号化データストリームの統計 的多重化方法であって、 前記複数の符号化データストリームの1つをそれぞれ発生する各可変 レートエンコーダにレートを割り当てる過程と、 割り当てられた前記レートを用いて、所定の数のエントリを有するテーブルを 設置する過程であって、前記テーブル内の各エントリが、(i)前記複数の符号 化データストリームと、(ii)アイドルパケットの何れか一方に割り振られる 、該テーブル設置過程と、 前記通信チャネルに次のパケットを送出する符号化データストリームを、前記 複数の符号化データストリームのなかから選択すべく、前記テーブルの各テーブ ルエントリを用いる過程とを有することを特徴とする複数の符号化データストリ ームの統計的多重化方法。 18.前記レートを割り当てる過程が初期化ステップにおいて実施され、各固定 レートエンコーダに実際のレートが割り当てられ、かつ各可変レートエンコーダ に保証レートが割り当てられることを特徴とする請求項17に記載の複数の符号 化データストリームの統計的多重化方法。 19.前記初期化ステップにおいて、各可変レートエンコーダにひずみ閾値が割 り当てられること特徴とする請求項18に記載の複数の符号化データストリーム の統計的多重化方法。 20.前記テーブル設置過程が、 i)前記エントリが、可変レートの符号化データストリームに割り振りされ た場合、前記エントリに所定の符号を格納する過程と、 ii)前記エントリが、固定レートの符号化データストリームに割り振りさ れた場合、前記エントリに、前記固定レートデータストリームを特定するポイン タを格納する過程と、 iii)前記スタティックテーブル内の各エントリに対し、i)からii) までの各前記過程を反復する過程とを更に含むことを特徴とする請求項18に記 載の複数の符号化データストリームの統計的多重化方法。 21.第2テーブルを設置する過程を更に有することを特徴とし、 前記第2テーブルを設置する過程が、 i)前記第2テーブル内のエントリを、A)前記複数の符号化データストリ ームのなかの複数の可変レート符号化データストリームの1つと、B)アイドル パケットとの何れかに割り振る過程と、 ii)前記エントリが前記可変レート符号化データストリームに割り振られ るとき、前記可変レート符号化データストリームに対するポインタを、前記エン トリに格納する過程と、 iii)前記第2テーブル内の各エントリに対し、i)からii)までの各 前記過程を反復する過程とを更に有することを特徴とする請求項20に記載の複 数の符号化データストリームの統計的多重化方法。 22.前記テーブルの各テーブルエントリを用いる前記過程が、 前記所定の符号を含む前記テーブルにおけるエントリを検出したとき、前記テ ーブル内のエントリにアクセスして、前記通信チャネル上に次のデータ単位を送 る前記複数のデータストリームのなかから1つの可変レートデータストリームを 選択する過程を更に含むことを特徴とする請求項21に記載の複数の符号化デー タストリームの統計的多重化方法。 23.可変レートエンコーダからの各可変レート符号化データストリームのため にデータを収集し、前記符号化データストリームを特徴づけるひずみパラメータ を生成する過程を更に有することを特徴とする請求項21に記載の複数の符号化 データストリームの統計的多重化方法。 24.前記可変レート符号化データストリームの質を特徴づける前記ひずみパラ メータを、各可変レート符号化データストリームに対して生成する過程を更に含 むことを特徴とする請求項23に記載の複数の符号化データストリームの統計的 多重化方法。 25.前記ひずみパラメータが所定の範囲外にあるとき、前記ひずみパ ラメータ用いて、各前記可変レート符号化データストリームに対して割り振られ るパケットの数を調節する過程を更に有することを特徴とする請求項24に記載 の複数の符号化データストリームの統計的多重化方法。 26.前記所定の範囲の下限が、第1ヒステリシス係数と前記ひずみ閾値との積 であることを特徴とする請求項25に記載の複数の符号化データストリームの統 計的多重化方法。 27.前記所定の範囲の上限が、第2ヒステリシス係数と前記ひずみ閾値との積 であることを特徴とする請求項25に記載の複数の符号化データストリームの統 計的多重化方法。 28.前記通信チャネル上を伝送すべく割り振られたパケットの調節された前記 数を用いて第3テーブルを設置する過程を更に有することを特徴とし、 前記第3テーブルを設置する過程が、 i)前記第3テーブル内のエントリを、A)前記複数の符号化データストリ ームのなかの前記複数の可変レート符号化データストリームの1つと、B)アイ ドルパケットとの何れかに割り振る過程と、 ii)前記エントリが前記可変レートデータストリームに割り振られるとき 、前記可変レート符号化データストリームに対するポインタを、前記エントリに 格納する過程と、 iii)前記第3テーブル内の各エントリに対し、i)からii)までの各 前記過程を反復する過程とを更に有することを特徴とする請求項25に記載の複 数の符号化データストリームの統計的多重化方法。 29.前記第2テーブルから前記第3テーブルへの切替えを行う過程を更に有す ることを特徴とする請求項28に記載の複数の符号化データストリームの統計的 多重化方法。 30.前記複数のデータストリームが、符号化データストリームを含む ことを特徴とする請求項21に記載の複数の符号化映像データストリームの統計 的多重化方法。 31.通信チャネルのアクセスを共有する複数の符号化データストリームの統計 的多重化方法であって、 可変レートエンコーダからの各可変レート符号化データストリームのために、 前記複数の符号化データストリームにデータを収集し、前記可変レート符号化デ ータストリームを特徴づけるひずみパラメータを生成する過程と、 前記可変レート符号化データストリームの質を特徴づける前記ひずみパラメー タを、各可変レート符号化データストリームに対して生成する過程と、 前記ひずみパラメータが所定の範囲外にあるとき、選択された時間間隔におい て、各前記可変レート符号化データストリームに対して割り振られるパケットの 数を調節する過程と、 割り振られた前記パケットの調節された前記数を用いてテーブルを設置する過 程であって、 i)前記テーブル内のエントリを、A)前記複数の符号化データストリーム のなかの複数の可変レート符号化データストリームにおける1つの可変レート符 号化データストリームと、B)アイドルパケットとの何れかに割り振る過程と、 ii)前記エントリが前記可変レート符号化データストリームに割り振られ るとき、前記可変レート符号化データストリームに対するポインタを、前記エン トリに格納する過程と、 iii)前記テーブル内の各エントリに対し、i)からii)までの各前記 過程を反復する過程とを含む、 該テーブルを設置する過程と、 統計処理マルチプレクサが、次のパケットを通信チャネルへ送る可変レート符 号化データストリームを決定するのに前記テーブルを用いるように、前記テーブ ルへの切替えを行う過程とを有することを特徴とする複数の符号化データストリ ームの統計的多重化方法。
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PCT/US1995/006136 WO1995032565A1 (en) | 1994-05-20 | 1995-05-19 | Method for dynamically allocating communication channel bandwidth between competing applications |
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- 1995-05-19 EP EP20050005560 patent/EP1542383A1/en not_active Ceased
- 1995-05-19 KR KR1019960706560A patent/KR100382690B1/ko not_active IP Right Cessation
- 1995-05-19 EP EP95919221A patent/EP0772927B1/en not_active Expired - Lifetime
- 1995-05-19 WO PCT/US1995/006136 patent/WO1995032565A1/en active Application Filing
- 1995-05-19 DE DE69535803T patent/DE69535803D1/de not_active Expired - Lifetime
- 1995-05-19 AU AU25166/95A patent/AU2516695A/en not_active Abandoned
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Cited By (7)
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JP2001078186A (ja) * | 1999-07-19 | 2001-03-23 | General Instr Corp | 統計的多重送信エンコーダ上での日和見データの実施 |
JP2005065268A (ja) * | 2003-08-13 | 2005-03-10 | Mitsubishi Electric Research Laboratories Inc | 複数のビデオを符号化する方法 |
JP2007235357A (ja) * | 2006-02-28 | 2007-09-13 | Nec Corp | 符号化装置および符号化ビットレート切り替え方法 |
JP4636267B2 (ja) * | 2006-02-28 | 2011-02-23 | 日本電気株式会社 | 符号化装置および符号化ビットレート切り替え方法 |
JP2012521126A (ja) * | 2009-03-19 | 2012-09-10 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | フレキシブル時分割多重化において複数の情報信号を伝送する装置および方法 |
US8804768B2 (en) | 2009-03-19 | 2014-08-12 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for transmitting a plurality of information signals in flexible time-division multiplexing |
JP2014187450A (ja) * | 2013-03-22 | 2014-10-02 | Hitachi Kokusai Electric Inc | 光伝送装置 |
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KR100382690B1 (ko) | 2003-08-02 |
KR970703662A (ko) | 1997-07-03 |
DE69535803D1 (de) | 2008-09-18 |
US5506844A (en) | 1996-04-09 |
CA2190115A1 (en) | 1995-11-30 |
WO1995032565A1 (en) | 1995-11-30 |
EP0772927B1 (en) | 2008-08-06 |
AU2516695A (en) | 1995-12-18 |
CA2190115C (en) | 2000-08-01 |
EP0772927A1 (en) | 1997-05-14 |
EP1542383A1 (en) | 2005-06-15 |
JP3233408B2 (ja) | 2001-11-26 |
EP0772927A4 (en) | 2002-08-28 |
MX9605759A (es) | 1998-10-31 |
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