JP2010011491A - 受信性能を向上するためのデジタル放送用伝送ストリームパケットの構成方法とデジタル放送送信機およびその信号処理方法 - Google Patents
受信性能を向上するためのデジタル放送用伝送ストリームパケットの構成方法とデジタル放送送信機およびその信号処理方法 Download PDFInfo
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Abstract
【解決手段】 デジタル放送送信機は、ストリーム及び前記ストリームの処理に用いられる付加的な情報を含む伝送ストリームを構成するMUX部と、該伝送ストリームをRS符号化するRS符号化部と、該RS符号化された伝送ストリームをインターリービングするインターリービング部と、該インターリービングされた伝送ストリームをトレリス符号化するトレリス符号化部と、を含む。ストリームは、付加的な情報がストリーム内で定められた位置に配置される。
【選択図】 図10
Description
同図に示すように、デジタル放送送信機は、TS MUX310、TSポストMUX320、ランダム化部330、付加基準信号(SRS)挿入部340、RS符号化部350、データインターリービング部360、トレリス符号化部370、互換性パリティ生成部380、多重化部390を含む。
プログラムクロックレファレンス(PCR)(6バイト使用):52n+15、n=0
オリジナルプログラムクロックレファレンス(OPCR)(6バイト使用):52n+15、n=1
適応フィールド拡張長さ(2バイト使用):52n+15、n=3、4、5
マクロブロック数(1バイト使用):52n+19、n=0、1、2、3、4、5
図5のMPEGパケットの形態と図12に示されたMPEGパケットの位置配置は、SRS VSBを効率的に使用するために色々と変形された形態を有することができる。
120 リードソロモン(Reed−Solomon)符号化部
130 インターリービング部
140 トレリス符号化部
150 多重化部(MUX)
160 変調およびRF部
220 復調部
230 等化部
240 トレリス復号化部
250 デインターリービング部
260 RF復号化部
270 ランダム化部
310 TS MUX
320 TSポストMUX
330 ランダム化部
340 付加基準信号(SRS)挿入部
350 RS符号化部
360 インターリービング部
370 トレリス符号化部
380 互換性パリティ生成部
390 多重化部
420 TSポストMUX
430 ランダム化部
440 付加基準信号(SRS)挿入部
450 RS符号化部
460 インターリービング部
470 トレリス符号化部
480 互換性パリティ生成部
490 多重化部
Claims (8)
- ストリーム及び前記ストリームの処理に用いられる付加的な情報を含む伝送ストリームを構成するMUX部と、
前記伝送ストリームをRS符号化するRS符号化部と、
前記RS符号化された伝送ストリームをインターリービングするインターリービング部と、
前記インターリービングされた伝送ストリームをトレリス符号化するトレリス符号化部と、を含み、
前記ストリームは、前記付加的な情報が前記ストリーム内で定められた位置に配置されるように構成されたことを特徴とするデジタル放送送信機。 - 前記MUX部は、
前記伝送ストリームを構成するTS MUXと、
前記付加的な情報が前記インターリービング部のインターリービングの後、前記伝送ストリーム内の定められた位置に配置されるように、前記伝送ストリーム内で前記付加的な情報の挿入位置を調整するTSポストMUXと、
を含むことを特徴とする請求項1に記載のデジタル放送送信機。 - 前記付加的な情報は、付加基準信号であることを特徴とする請求項1又は請求項2に記載のデジタル放送送信機。
- 前記付加的な情報は、training Sequence、PCR、OPCR、splice countdown、transport private data length、adaptation field extension lengthのうち少なくとも一つであることを特徴とする請求項1又は請求項2に記載のデジタル放送送信機。
- ストリーム及び前記ストリームの処理に用いられる付加的な情報を含む伝送ストリームを構成するストリーム構成ステップと、
前記伝送ストリームをRS符号化するRS符号化ステップと、
前記RS符号化された伝送ストリームをインターリービングするインターリービングステップと、
前記インターリービングされた伝送ストリームをトレリス符号化するトレリス符号化ステップと、を含み、
前記ストリームは、前記付加的な情報が前記ストリーム内で定められた位置に配置されるように構成されたことを特徴とするデジタル放送送信機のストリーム処理方法。 - 前記ストリーム構成ステップは、
前記伝送ストリームを構成するステップと、
前記付加的な情報が前記インターリービングの後、前記伝送ストリーム内の定められた位置に配置されるように、前記伝送ストリーム内で前記付加的な情報の挿入位置を調整するステップと、
を含むことを特徴とする請求項5に記載のデジタル放送送信機のストリーム処理方法。 - 前記付加的な情報は、付加基準信号であることを特徴とする請求項5又は請求項6に記載のデジタル放送送信機のストリーム処理方法。
- 前記付加的な情報は、training Sequence、PCR、OPCR、splice countdown、transport private data length、adaptation field extension lengthのうち少なくとも一つであることを特徴とする請求項5又は請求項6に記載のデジタル放送送信機のストリーム処理方法。
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| US68330405P | 2005-05-23 | 2005-05-23 | |
| US60/683,304 | 2005-05-23 | ||
| US72489805P | 2005-10-11 | 2005-10-11 | |
| US60/724,898 | 2005-10-11 |
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| JP2009233603A Expired - Fee Related JP4839400B2 (ja) | 2005-05-23 | 2009-10-07 | 受信性能を向上するためのデジタル放送用伝送ストリームパケットの構成方法とデジタル放送送信機およびその信号処理方法 |
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| CA2562194C (en) | 2005-10-05 | 2012-02-21 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
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| KR101370889B1 (ko) * | 2005-12-28 | 2014-03-10 | 엘지전자 주식회사 | 디지털 방송 시스템 및 처리 방법 |
| WO2007091779A1 (en) | 2006-02-10 | 2007-08-16 | Lg Electronics Inc. | Digital broadcasting receiver and method of processing data |
| KR100793963B1 (ko) * | 2006-04-04 | 2008-01-16 | 삼성전자주식회사 | 디지털 방송시스템 및 그 데이터 처리방법 |
| KR100818229B1 (ko) * | 2006-04-04 | 2008-04-01 | 삼성전자주식회사 | 디지털 방송 송신 장치 및 그의 수신기 복조에 필요한 정보삽입 방법 |
| WO2007123302A1 (en) | 2006-04-25 | 2007-11-01 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| WO2007126196A1 (en) | 2006-04-29 | 2007-11-08 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
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| US7873104B2 (en) | 2006-10-12 | 2011-01-18 | Lg Electronics Inc. | Digital television transmitting system and receiving system and method of processing broadcasting data |
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| KR101414472B1 (ko) * | 2007-02-02 | 2014-07-04 | 삼성전자주식회사 | 멀티 전송 스트림 생성 장치 및 방법 그리고 디지털 방송송/수신 장치 및 방법 |
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| KR101285887B1 (ko) | 2007-03-26 | 2013-07-11 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
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