KR100259441B1 - 디지틀 vtr의 신호처리장치 - Google Patents
디지틀 vtr의 신호처리장치 Download PDFInfo
- Publication number
- KR100259441B1 KR100259441B1 KR1019930011565A KR930011565A KR100259441B1 KR 100259441 B1 KR100259441 B1 KR 100259441B1 KR 1019930011565 A KR1019930011565 A KR 1019930011565A KR 930011565 A KR930011565 A KR 930011565A KR 100259441 B1 KR100259441 B1 KR 100259441B1
- Authority
- KR
- South Korea
- Prior art keywords
- block
- error
- recording
- blocks
- sync
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 18
- 230000006866 deterioration Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
- H04N5/94—Signal drop-out compensation
- H04N5/945—Signal drop-out compensation for signals recorded by pulse code modulation
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
- H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
- H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
- H04N5/9264—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction using transform coding
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Television Signal Processing For Recording (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Error Detection And Correction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims (4)
- (정정) 디지털화된 영상데이터를 복수개 수집하여 블록화하고, 복수의 필드를 단위로 하는 1페이지중에서 상기 블록을 m개 수집하여 압축블록을 구성하고, 상기 압축블록단위로 고능률부호화한 데이터를 저역성분과 고역성분으로 분리해서 n개의 기록블록에 삽입하고, 상기 저역성분을 상기 n개의 기록블록의 소정의 위치에 삽입하여 기록을 행하는 디지털영상신호의 기록재생장치에 있어서, 재생데이터의 에러를 정정하는 에러정정수단과; 상기 에러정정수단에 의해 정정이 불가능한 에러가 발생한 경우에, 정정이 불가능한 에러를 포함한 기록블록을 적어도 1페이지앞의 대응하는 기록블록으로 치환함으로써 에러를 수정하는 에러수정수단과; 상기 에러수정수단에 의해 수정된 기록블록 및 상기 에러수정수단에 의해 수정된 기록블록과 동일한 상기 압축블록을 고능률부호화한 데이터로 구성된 기록블록을 검출하는 검출수단과; 상기 검출수단에 의해 검출된 기록블록에 대해서 저역성분만을 복호화하는 고능률복호화수단을 구비한 것을 특징으로 하는 디지털 VTR의 신호처리장치.
- 제1항에 있어서, 상기 검출수단은, 상기 n개의 기록블록단위로 검출을 행하는 것을 특징으로 하는 디지털 VTR의 신호처리장치.
- 제1항에 있어서, 상기 고능률복호화수단은, 상기 검출수단에 의해 검출된 기록블록에 다중화된 복호정보에 의거하여 복호방법을 선택하는 것을 특징으로 하는 디지털 VTR의 신호처리장치.
- 제1항에 있어서, 상기 고능률부호화는 직교변환을 행하는 것을 특징으로 하는 디지털 VTR의 신호처리장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP92-167200 | 1992-05-25 | ||
JP16720092A JP2962053B2 (ja) | 1992-06-25 | 1992-06-25 | 信号処理装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940006118A KR940006118A (ko) | 1994-03-23 |
KR100259441B1 true KR100259441B1 (ko) | 2000-06-15 |
Family
ID=15845285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930011565A Expired - Fee Related KR100259441B1 (ko) | 1992-05-25 | 1993-06-24 | 디지틀 vtr의 신호처리장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5392129A (ko) |
EP (1) | EP0575997B1 (ko) |
JP (1) | JP2962053B2 (ko) |
KR (1) | KR100259441B1 (ko) |
DE (1) | DE69320707T2 (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0121301B1 (ko) * | 1992-09-30 | 1997-11-17 | 사또오 후미오 | 편집신호 디코딩 장치 |
US5815636A (en) * | 1993-03-29 | 1998-09-29 | Canon Kabushiki Kaisha | Image reproducing apparatus |
US6002837A (en) * | 1993-06-30 | 1999-12-14 | Canon Kabushiki Kaisha | Image reproducing apparatus reproducing coded image signals while concealing data which cannot be decoded |
KR0166725B1 (ko) * | 1993-06-30 | 1999-03-20 | 김광호 | 강제인트라-프레임부호화방법 |
US5612789A (en) * | 1993-09-03 | 1997-03-18 | Sony Corporation | Video signal recorder and video apparatus with internal clock index signal |
JPH0795538A (ja) * | 1993-09-17 | 1995-04-07 | Canon Inc | 画像記録再生装置 |
JPH07282549A (ja) * | 1994-04-12 | 1995-10-27 | Kodo Eizo Gijutsu Kenkyusho:Kk | 圧縮画像データ記録再生装置 |
JPH08212713A (ja) * | 1995-02-03 | 1996-08-20 | Sony Corp | データレコーダー |
WO1996037964A1 (en) * | 1995-05-22 | 1996-11-28 | Ntt Mobile Communications Network Inc. | Sound decoding device |
KR0165439B1 (ko) * | 1995-09-14 | 1999-03-20 | 김광호 | 디지탈 비디오 테이프 레코더의 화면 구성 장치 및 방법 |
US6052415A (en) * | 1997-08-26 | 2000-04-18 | International Business Machines Corporation | Early error detection within an MPEG decoder |
JP4066576B2 (ja) * | 1999-10-26 | 2008-03-26 | ソニー株式会社 | データ再生装置及び方法 |
US7159164B1 (en) * | 2000-06-05 | 2007-01-02 | Qualcomm Incorporated | Method and apparatus for recovery of particular bits of a frame |
US6728318B2 (en) | 2001-03-02 | 2004-04-27 | Redrock Semiconductor, Ltd. | Error recovery of corrupted MPEG-4 bitstreams using fuzzy decoding of start codes and resync markers |
JP4562520B2 (ja) * | 2004-12-28 | 2010-10-13 | 富士通テン株式会社 | デジタルデータ受信機 |
KR101013642B1 (ko) | 2005-12-21 | 2011-02-10 | 닛본 덴끼 가부시끼가이샤 | 부호 변환 장치 및 이에 이용되는 부호 변환 방법 및 그 프로그램이 기록되어 있는 컴퓨터 판독 가능 기록 매체 |
US8687301B1 (en) * | 2013-01-08 | 2014-04-01 | Lsi Corporation | Parallel no-sync-mark retry |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE890517A (fr) * | 1981-09-28 | 1982-01-18 | Staar Sa | Dispositif de memorisation d'images electroniques |
GB2121642B (en) * | 1982-05-26 | 1985-11-27 | Sony Corp | Error concealment in digital television signals |
EP0203773B1 (en) * | 1985-05-21 | 1992-07-15 | Sony Corporation | Apparatus for decoding error correcting code |
US5032927A (en) * | 1988-03-01 | 1991-07-16 | Fuji Photo Film Co., Ltd. | Image signal recording apparatus capable of recording compressed image data together with audio data |
JP3050553B2 (ja) * | 1988-04-08 | 2000-06-12 | ソニー株式会社 | データ再生装置 |
JPH0787013B2 (ja) * | 1988-10-26 | 1995-09-20 | ティアツク株式会社 | ドロップアウト検出回路 |
JP3018366B2 (ja) * | 1989-02-08 | 2000-03-13 | ソニー株式会社 | ビデオ信号処理回路 |
EP0415699B1 (en) * | 1989-08-29 | 1997-07-23 | Matsushita Electric Industrial Co., Ltd. | Digital video signal recorder and reproducer |
US5142380A (en) * | 1989-10-23 | 1992-08-25 | Ricoh Company, Ltd. | Image data processing apparatus |
JP2890740B2 (ja) * | 1990-08-09 | 1999-05-17 | 松下電器産業株式会社 | ディジタル映像信号再生装置 |
JPH0498987A (ja) * | 1990-08-16 | 1992-03-31 | Matsushita Electric Ind Co Ltd | 誤り修整方法 |
JPH04140084A (ja) * | 1990-09-28 | 1992-05-14 | Copal Electron Co Ltd | 直流モータ起動不良検出回路 |
JPH04271071A (ja) * | 1991-02-26 | 1992-09-28 | Matsushita Electric Ind Co Ltd | 誤り修整方法 |
JPH05114251A (ja) * | 1991-10-23 | 1993-05-07 | Matsushita Electric Ind Co Ltd | 誤り修整方法 |
JPH04358486A (ja) * | 1991-06-04 | 1992-12-11 | Toshiba Corp | 高能率符号化信号処理装置 |
JP3141896B2 (ja) * | 1991-08-09 | 2001-03-07 | ソニー株式会社 | ディジタルビデオ信号の記録装置 |
JPH05260438A (ja) * | 1991-11-12 | 1993-10-08 | Samsung Electron Co Ltd | 可変速再生のためのディジタル磁気テープ記録再生方法 |
-
1992
- 1992-06-25 JP JP16720092A patent/JP2962053B2/ja not_active Expired - Fee Related
-
1993
- 1993-06-24 KR KR1019930011565A patent/KR100259441B1/ko not_active Expired - Fee Related
- 1993-06-24 EP EP19930110060 patent/EP0575997B1/en not_active Expired - Lifetime
- 1993-06-24 DE DE69320707T patent/DE69320707T2/de not_active Expired - Fee Related
- 1993-06-25 US US08/083,052 patent/US5392129A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0575997A3 (en) | 1994-06-08 |
JPH0614294A (ja) | 1994-01-21 |
DE69320707T2 (de) | 1999-01-21 |
US5392129A (en) | 1995-02-21 |
KR940006118A (ko) | 1994-03-23 |
EP0575997A2 (en) | 1993-12-29 |
DE69320707D1 (de) | 1998-10-08 |
EP0575997B1 (en) | 1998-09-02 |
JP2962053B2 (ja) | 1999-10-12 |
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