JP2010022040A - デジタル放送送信装置及びそのターボストリーム処理方法並びにそれを含むデジタル放送システム - Google Patents
デジタル放送送信装置及びそのターボストリーム処理方法並びにそれを含むデジタル放送システム Download PDFInfo
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Abstract
【解決手段】 デジタル放送送信機は、オーディオ信号及びビデオ信号を第1圧縮方式によって圧縮してノーマルデータストリームを構成する第1圧縮部と、オーディオ信号及びビデオ信号を第2圧縮方式によって圧縮して付加データストリームを構成する第2圧縮部と、ノーマルデータストリームと付加データストリームをマルチプレクシングして伝送ストリームを構成するTS構成部とを含む。
【選択図】 図2
Description
RSデコーダ433はデインターリービングされたノーマルストリームパケットをリードソロモンデコーディングしてエラーを訂正する。
ターボデコーダ441は等化されたデュアル伝送ストリームのうちターボストリームに対してのみターボデコーディングを行う。ターボデコーダ441はターボデコーディングが完了されれば、ターボストリームを再びデュアル伝送ストリームに挿入してデュアル伝送ストリームを再構成する。
20 第2圧縮部
100 TS構成部
110 H.264圧縮部
120 RSエンコーダ
130 プレースホルダメーカ
140 インターリーバ
150 TS MUX
200 TS処理部
201 ランダム化部
203 RSエンコーダ(Reed-Solomon encoder)
205 データインターリーバ
207 ターボ処理部
209 トレリスエンコーダ
211 MUX
213 パイロット挿入部
215 変調部
217 RF変換部
410 復調部
420 等化部
430 第1処理部
431 ビタビデコーダ
432 第1デインターリーバ
433 RSデコーダ
434 第1逆ランダム化部
440 第2処理部
441 ターボデコーダ
442 第2デインターリーバ
443 パリティ除去部
444 第2逆ランダム化部
445 ターボDEMUX
446 イレイジャーデコーダ
1000 デジタル放送送信装置
2000 デジタル放送受信装置
Claims (9)
- オーディオ信号及びビデオ信号を第1圧縮方式によって圧縮してノーマルデータストリームを構成する第1圧縮部と、
オーディオ信号及びビデオ信号を第2圧縮方式によって圧縮して付加データストリームを構成する第2圧縮部と、
前記ノーマルデータストリームと前記付加データストリームをマルチプレクシングして伝送ストリームを構成するTS構成部と、
を含むことを特徴とするデジタル放送送信機。 - 前記第1圧縮方式は、MPEG−2(Moving Picture Experts Group−2)、H.264、及びMPEG−4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に記載のデジタル放送送信機。
- 前記第2圧縮方式は、MPEG−2(Moving Picture Experts Group−2)、H.264、及びMPEG−4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に記載のデジタル放送送信機。
- 第1圧縮方式及び第2圧縮方式は、互いに異なる圧縮方式である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TS構成部は、
前記構成された付加データストリームをRSエンコーディングするRSエンコーダと、
前記RSエンコーディングされた付加データストリームにパリティ挿入領域を付加するプレースホルダメーカと、
前記パリティ挿入領域が付加された付加データストリームをインターリービングするインターリーバと、
前記インターリービングされた付加データストリーム及び前記構成されたノーマルストリームをマルチプレクシングするTS 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。 - オーディオ信号及びビデオ信号を第1圧縮方式によって圧縮してノーマルデータストリームを構成するステップと、
オーディオ信号及びビデオ信号を第2圧縮方式によって圧縮して付加データストリームを構成するステップと、
前記ノーマルデータストリームと前記付加データストリームをマルチプレクシングして伝送ストリームを構成するステップと、
を含む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。 - 前記第1圧縮方式は、MPEG−2(Moving Picture Experts Group−2)、H.264、及びMPEG−4のうち少なくとも一つであることを特徴とする請求項6に記載のデジタル放送送信機のストリーム処理方法。
- 前記第2圧縮方式は、MPEG−2(Moving Picture Experts Group−2)、H.264、及びMPEG−4のうち少なくとも一つであることを特徴とする請求項6に記載のデジタル放送送信機のストリーム処理方法。
- 前記伝送ストリームを構成するステップは、
前記構成された付加データストリームをRSエンコーディングするステップと、
前記RSエンコーディングされた付加データストリームにパリティ挿入領域を付加するステップと、
前記パリティ挿入領域が付加された付加データストリームをインターリービングするステップと、
前記インターリービングされた付加データストリーム及び前記構成されたノーマルストリームをマルチプレクシングするステップと、
を含むことを特徴とする請求項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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75241005P | 2005-12-22 | 2005-12-22 | |
| US60/752,410 | 2005-12-22 | ||
| KR1020060069389A KR100740206B1 (ko) | 2005-12-22 | 2006-07-24 | 디지털 방송 송신 장치 및 그의 터보 스트림 처리 방법그리고 그를 포함하는 디지털 방송 시스템 |
| KR10-2006-0069389 | 2006-07-24 |
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| JP2008547084A Division JP5116691B2 (ja) | 2005-12-22 | 2006-10-12 | デジタル放送送信装置及びそのターボストリーム処理方法並びにそれを含むデジタル放送システム |
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| JP2009233604A Expired - Fee Related JP5129798B2 (ja) | 2005-12-22 | 2009-10-07 | デジタル放送送信装置及びそのターボストリーム処理方法並びにそれを含むデジタル放送システム |
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| CN (2) | CN101305609B (ja) |
| CA (2) | CA2679572C (ja) |
| WO (1) | WO2007073033A1 (ja) |
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| KR101377450B1 (ko) | 2012-11-08 | 2014-03-25 | (주)청화테크 | 방송신호 포맷 변환을 통해 디지털 방송을 구현하는 지상파 방송 수신 시스템 |
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| KR101377450B1 (ko) | 2012-11-08 | 2014-03-25 | (주)청화테크 | 방송신호 포맷 변환을 통해 디지털 방송을 구현하는 지상파 방송 수신 시스템 |
Also Published As
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|---|---|
| JP5129798B2 (ja) | 2013-01-30 |
| CA2629998C (en) | 2015-08-11 |
| US20090052523A1 (en) | 2009-02-26 |
| US20090060025A1 (en) | 2009-03-05 |
| US8009704B2 (en) | 2011-08-30 |
| JP2009521183A (ja) | 2009-05-28 |
| WO2007073033A1 (en) | 2007-06-28 |
| CN101702776A (zh) | 2010-05-05 |
| CN101305609B (zh) | 2013-11-13 |
| US20090097574A1 (en) | 2009-04-16 |
| US20070147440A1 (en) | 2007-06-28 |
| CA2629998A1 (en) | 2007-06-28 |
| US20090063695A1 (en) | 2009-03-05 |
| US7920622B2 (en) | 2011-04-05 |
| CN101305609A (zh) | 2008-11-12 |
| US8275004B2 (en) | 2012-09-25 |
| CA2679572A1 (en) | 2007-06-28 |
| US20090060054A1 (en) | 2009-03-05 |
| CA2679572C (en) | 2016-05-17 |
| US8184695B2 (en) | 2012-05-22 |
| US8379673B2 (en) | 2013-02-19 |
| JP5116691B2 (ja) | 2013-01-09 |
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