KR20020095755A - 비디오 코덱의 메모리 액세스 장치 및 방법 - Google Patents
비디오 코덱의 메모리 액세스 장치 및 방법 Download PDFInfo
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- KR20020095755A KR20020095755A KR1020010033947A KR20010033947A KR20020095755A KR 20020095755 A KR20020095755 A KR 20020095755A KR 1020010033947 A KR1020010033947 A KR 1020010033947A KR 20010033947 A KR20010033947 A KR 20010033947A KR 20020095755 A KR20020095755 A KR 20020095755A
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- 230000015654 memory Effects 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000872 buffer Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
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- 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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
- H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
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- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- 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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
-
- 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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (4)
- 블록 기반의 비디오 코덱에서 엔코딩 및 디코딩을 수행함에 있어서, 픽셀 클럭을 입력받아 소정 배수의 고속 클럭을 생성하는 PLL부와; 상기 고속 클럭의 구간을 소정개의 구간으로 구분하고, 메모리 액세스가 필요한 코덱 내부의 각 기능 블록들을 상기 각 고속 클럭 구간에 할당하여 메모리에 접근할 수 있도록 하는 메모리 제어부 및 코딩 제어부를 포함하여 구성한 것을 특징으로 하는 비디오 코덱의 메모리 액세스 장치.
- 블록 기반의 비디오 코덱에서 엔코딩 및 디코딩을 수행함에 있어서, 메모리 액세스가 필요한 각 구성부의 입력으로 사용되는 픽셀 클럭의 정수배에 해당하는 고속의 클럭을 생성하고, 상기 고속 클럭을 상기 각 구성부에서 메모리를 액세스할 수 있도록 하는 소정개의 클럭 구간으로 구분하고, 상기 구분된 각각의 클럭 구간동안 상기 각 구성부에 메모리 액세스 권한을 주어 고속으로 액세스가 가능하도록 하여 하나의 외부 메모리를 공유하도록 이루어진 것을 특징으로 하는 비디오 코덱의 메모리 액세스 방법.
- 제2항에 있어서, 상기 픽셀 클럭의 정수배로 생성되는 고속 클럭은, 가로 ×세로가 8 ×8을 기반으로 하는 코덱일 경우, 픽셀 클럭의 8배인 클럭을 생성하도록 이루어진 것을 특징으로 하는 비디오 코덱의 메모리 액세스 방법.
- 제2항에 있어서, 상기 고속 클럭을 4개의 구간으로 구분할 경우, 8 픽셀 구간동안 고속 클럭에 의해 8번의 연속적인 메모리 액세스를 4번 수행하게 하는 것을 특징으로 하는 비디오 코덱의 메모리 액세스 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010033947A KR100779498B1 (ko) | 2001-06-15 | 2001-06-15 | 비디오 코덱의 메모리 액세스 장치 및 방법 |
Applications Claiming Priority (1)
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KR1020010033947A KR100779498B1 (ko) | 2001-06-15 | 2001-06-15 | 비디오 코덱의 메모리 액세스 장치 및 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20020095755A true KR20020095755A (ko) | 2002-12-28 |
KR100779498B1 KR100779498B1 (ko) | 2007-11-27 |
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KR1020010033947A KR100779498B1 (ko) | 2001-06-15 | 2001-06-15 | 비디오 코덱의 메모리 액세스 장치 및 방법 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7725641B2 (en) | 2006-11-15 | 2010-05-25 | Samsung Electronics Co., Ltd. | Memory array structure and single instruction multiple data processor including the same and methods thereof |
KR101097636B1 (ko) * | 2008-11-24 | 2011-12-22 | 엔비디아 코포레이션 | 데이터 스트림들의 인코딩시 최적 전력 이용 |
US8180195B2 (en) | 2007-02-27 | 2012-05-15 | Samsung Electronics Co., Ltd. | Memory structures and methods for video codec |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100201295B1 (ko) * | 1996-10-30 | 1999-06-15 | 윤종용 | 단일 메모리를 이용한 비디오 디코더 디스플레이회로 |
KR100246027B1 (ko) * | 1997-10-07 | 2000-03-02 | 구자홍 | 범용 메모리를 이용한 영상신호 저장 및 독출장치 |
KR100277679B1 (ko) * | 1997-10-24 | 2001-01-15 | 정선종 | 영상부호화및복호화시스템에서의메모리장치 |
JP2000078521A (ja) * | 1998-08-27 | 2000-03-14 | Hitachi Ltd | 画像復号表示装置 |
-
2001
- 2001-06-15 KR KR1020010033947A patent/KR100779498B1/ko not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7725641B2 (en) | 2006-11-15 | 2010-05-25 | Samsung Electronics Co., Ltd. | Memory array structure and single instruction multiple data processor including the same and methods thereof |
US8180195B2 (en) | 2007-02-27 | 2012-05-15 | Samsung Electronics Co., Ltd. | Memory structures and methods for video codec |
KR101097636B1 (ko) * | 2008-11-24 | 2011-12-22 | 엔비디아 코포레이션 | 데이터 스트림들의 인코딩시 최적 전력 이용 |
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KR100779498B1 (ko) | 2007-11-27 |
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