JP2010527559A - 信号を符号化および復号する方法および装置 - Google Patents
信号を符号化および復号する方法および装置 Download PDFInfo
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Abstract
Description
本出願は、米国特許法第119条に基づいて、2007年5月16日付で米国に出願された仮特許出願第60/930683号、2007年5月17日付で米国に出願された仮特許出願第60/930591号、2007年6月20日付で米国に出願された仮特許出願60/936360号、さらに、2007年7月6日付で米国に出願された仮特許出願60/58581号の優先権を主張する。
G=(1 2) (28)
Claims (40)
- データ・セットを受信するステップ(1710)と、
前記データ・セットのサブセットを抽出するステップ(1720)と、
第1の符号化処理を使用して前記データ・セットの前記サブセットを符号化するステップ(1740)と、
前記データ・セットの前記符号化されたサブセットを前記データ・セットの残りの部分と組み合わせるステップ(1780)と、
第2の符号化処理を使用して前記付加されたサブセットを含む組み合わされたデータ・セットを符号化するステップ(1790)と、を含む方法(1700)。 - 前記第1の符号化処理がバイトコード符号化処理である、請求項1に記載の方法(1700)。
- 前記バイトコード符号化処理が、ガロア体生成行列を使用して前記データ・セットの前記サブセットにおける前記データを補足する、請求項2に記載の方法(1700)。
- 前記組み合わせるステップ(1780)が、前記データ・セットの前記符号化されたサブセットを、前記データ・セットの残りの部分に付加するステップを含む、請求項1に記載の方法(1700)。
- 前記第2の符号化処理がリード・ソロモン符号化処理である、請求項1に記載の方法(1700)。
- 前記第1の符号化処理を使用して符号化するステップ(1740)が、第1の符号化レートで符号化するステップを含む、請求項1に記載の方法(1700)。
- 前記データ・セットの第2のサブセットを抽出するステップ(1720)と、
前記第1の符号化処理を使用して前記データ・セットの前記第2のサブセットを符号化するステップ(1740)と、をさらに含み、前記第1の符号化処理を使用して前記第2のサブセットを符号化するステップが、第2の符号化レートで符号化するステップと、前記データ・セットの第2の符号化されたサブセットを前記組み合わされたデータ・セットに組み合わせるステップ(1790)と、を含む請求項6に記載の方法(1700)。 - 前記第1の符号化処理は、ガロア体上GF(256)上の直列連結型ブロック符号化(Serial Concatenated Block Coding)である、請求項1に記載の方法(1700)。
- 前記受信されたデータ・セットが、各々が187バイトのデータを含むパケットに配列される、請求項1に記載の方法(1700)。
- 前記組み合わされたデータを送信するステップ(1795)をさらに含む、請求項1に記載の方法(1700)。
- 前記組み合わせるステップ(1780)が、前記データ・セットの前記サブセットの少なくとも一部を前記データ・セットの残りの部分内に挿入するステップを含む、請求項1に記載の方法(1700)。
- テレビジョン放送システムに使用される、請求項1に記載の方法(1700)。
- 第1の符号化処理を使用した第1のデータ・セットを符号化するステップ(1740)と、
前記符号化された第1のデータ・セットを第2のデータ・セットに組み合わせて組み合わせられたデータ・セットを生成するステップ(1780)と、
第2の符号化処理を使用して前記組み合わせられたデータ・セットを符号化するステップ(1790)と、を含む(1700)方法。 - 前記第1の符号化処理がバイトコード符号化処理である、請求項13に記載の方法(1700)。
- 前記バイトコード符号化処理が、ガロア体生成行列を使用して前記第1のデータ・セットにおける前記データを補足する、請求項14に記載の方法(1700)。
- 前記第2の符号化処理がリード・ソロモン符号化処理である、請求項13に記載の方法(1700)。
- 前記第1の符号化処理を使用して符号化するステップ(1740)が、第1の符号化レートで符号化するステップを含む、請求項13に記載の方法(1700)。
- 前記第1の符号化処理を使用して、第2の符号化レートで第3のデータ・セットを符号化するステップ(1740)と、
前記第3の符号化されたデータ・セットを前記組み合わされたデータ・セットと組み合わせるステップ(1780)と、をさらに含む、請求項17に記載の方法(1700)。 - 前記組み合わせるステップ(1780)が、前記符号化された第1のデータ・セットを、前記第2のデータ・セットに付加するステップを含む、請求項13に記載の方法(1700)。
- 前記第1の符号化処理がガロア体上GF(256)上の直列連結型ブロック符号化(Serial Concatenated Block Coding)である、請求項13に記載の方法(1700)。
- 前記受信されたデータ・セットが、各々が187バイトのデータを含むパケットに配列される、請求項13に記載の方法(1700)。
- テレビジョン放送システムにおいて使用される、請求項13に記載の方法(1700)。
- データ・セットのサブセットを抽出する手段と、
第1の符号化処理を使用して前記データ・セットの前記サブセットを符号化する手段(504)と、
前記データ・セットの前記符号化されたサブセットを前記データ・セットの残りの部分と組み合わせる手段と、
第2の符号化処理を使用して前記付加されたサブセットを含む組み合わされたデータ・セットを符号化する手段(508)と、を含む装置(500)。 - 前記データ・セットの前記サブセットを符号化する手段(504)が第1の符号化レートと第2の符号化レートで前記データの前記サブセットを符号化する手段を含む、請求項23に記載の装置(500)。
- 第1の符号化処理を用いて第1のデータ・セットを符号化する手段(504)と、
前記符号化された第1のデータ・セットを第2のデータ・セットに組み合わせて組み合わせられたデータ・セットを生成する手段と、
第2の符号化処理を用いて前記組み合わせられたデータ・セットを符号化する手段(508)と、を含む装置(500)。 - 前記複数のパケットの前記サブセットを符号化する手段は、前記第1の符号化レートと前記第2の符号化レートで前記データの前記サブセットを符号化する手段を含む、請求項23に記載の装置(500)。
- 前記データ・セットを受信し、前記データ・セットからのデータのサブセットを識別するデータ識別器と、
前記データ識別器に結合され、前記データのサブセットを受信し、第1の符号化処理を使用して前記データのサブセットを復号する第1の復号器(2006)と、
前記第1の復号器(2006)に結合され、前記データのサブセットに前記データ・セットの残りの部分を組み合わせ、当該組み合わされたデータを第2の復号処理を使用して復号する第2の復号器(2008)と、を含む装置(2000)。 - 前記受信されたデータ・セットが、各々が207バイトのデータを含むパケットに配列される、請求項27に記載の装置(2000)。
- 前記データ・セットにおける前記データのサブセットがモバイル用放送データである、請求項27に記載の装置(2000)。
- 前記データ・セットの前記残りの部分のデータがテレビジョンのためのレガシーな放送データである、請求項27に記載の装置(2000)。
- 前記第1の復号処理がバイトコード復号処理である、請求項27に記載の装置(2000)。
- 前記第1の復号処理がガロア体上GF(256)上の直列連結型ブロックコード(Serial Concatenated Block Code)復号処理である、請求項27に記載の装置(2000)。
- 前記第2の復号処理がリード・ソロモン復号処理である、請求項27に記載の装置(200)。
- データ・セットを受信するステップと、
前記データ・セット内のデータのサブセットを識別するステップと、
第1の復号処理を使用して前記データのサブセットを復号するステップと、
前記復号されたサブセットを前記データ・セットの残りの部分と組み合わせるステップと、
第2の復号処理を使用して前記組み合わせられたデータを復号するステップと、を含む方法。 - 前記組み合わされ、復号されたデータを処理してモバイル用受信機のためのデータストリームを生成するステップをさらに含む、請求項34に記載の方法。
- 前記受信されたデータ・セットが、各々が207バイトのデータを含むパケットに配列される、請求項34に記載の方法。
- 前記データ・セットの前記残りの部分のデータがテレビジョンのためのレガシーな放送データである、請求項34に記載の方法。
- 前記第1の復号処理がバイトコード復号処理である、請求項34に記載の方法。
- 前記第1の符号化処理がガロア体上GF(256)上の直列連結型ブロックコード(Serial Concatenated Block Code)復号処理である、請求項34に記載の方法。
- 前記第2の復号処理がリード・ソロモン復号処理である、請求項34に記載の方法。
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