KR19980022997A - 디지탈 영상의 이산여현변환 블럭 지정장치 - Google Patents
디지탈 영상의 이산여현변환 블럭 지정장치 Download PDFInfo
- Publication number
- KR19980022997A KR19980022997A KR1019960042340A KR19960042340A KR19980022997A KR 19980022997 A KR19980022997 A KR 19980022997A KR 1019960042340 A KR1019960042340 A KR 1019960042340A KR 19960042340 A KR19960042340 A KR 19960042340A KR 19980022997 A KR19980022997 A KR 19980022997A
- Authority
- KR
- South Korea
- Prior art keywords
- discrete cosine
- block
- address
- coefficient data
- cosine transform
- Prior art date
Links
- 230000009466 transformation Effects 0.000 title 1
- 230000015654 memory Effects 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 230000009977 dual effect Effects 0.000 claims abstract description 17
- 230000003111 delayed effect Effects 0.000 claims abstract description 16
- 102100034033 Alpha-adducin Human genes 0.000 description 7
- 101000799076 Homo sapiens Alpha-adducin Proteins 0.000 description 7
- 101000629598 Rattus norvegicus Sterol regulatory element-binding protein 1 Proteins 0.000 description 7
- 230000001934 delay Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000013139 quantization Methods 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
-
- 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]
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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 Of Band Width Or Redundancy In Fax (AREA)
- Complex Calculations (AREA)
Abstract
Description
Claims (5)
- 하나의 이산여현변환 블럭의 어드레스 및 AC계수 데이타를 인가받아 각각 소정 지연시간동안 지연시켜 출력하는 지연수단; 상기 지연수단에 의해 한 클럭 지연된 이산여현변환 블럭의 어드레스 및 AC계수 데이타와 지연되지 않은 또 하나의 이산여현변환 블럭의 어드레스 및 AC계수 데이타를 라이트 인에이블 신호에 의해 인가받아 각 어드레스에 해당하는 영역에 각 AC계수 데이타를 저장하고, 한 블럭의 시간만큼 저장된 각 블럭의 AC계수 테이타를 램 클럭과 리드 어드레스에 의하여 리드하여 순차적으로 초기 스캘링 수단으로 출력하는 저장수단으로 구성함을 특징으로 하는 디지탈 영상의 이산여현변환 블럭 지연장치.
- 제1항에 있어서, 지연수단의 지연시간은 어드레스의 1클럭에 대한 시간인 것을 특징으로 하는 디지탈 영상의 이산여현변환 블럭 지연장치.
- 제1항 또는 제2항에 있어서, 지연수단은 디플립플롭으로 구성한 것을 특징으로 하는 디지탈 영상의 이산여현변환 블럭 지연장치.
- 제1항에 있어서, 저장수단에 인가되는 리드 어드레스는 지연되지 않은 이산여현변환 블럭의 어드레스인 것을 특징으로 하는 디지탈 영상의 이산여현변환 블럭 지연장치.
- 제1항 또는 제4항에 있어서, 저장수단은 듀얼 포트 메모리인 것을 특징으로 하는 디지탈 영상의 이산여현변환 블럭 지연장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960042340A KR100225347B1 (ko) | 1996-09-25 | 1996-09-25 | 디지탈 영상의 이산여현변환 블럭 지정장치(a delay apparatus for dct block) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960042340A KR100225347B1 (ko) | 1996-09-25 | 1996-09-25 | 디지탈 영상의 이산여현변환 블럭 지정장치(a delay apparatus for dct block) |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980022997A true KR19980022997A (ko) | 1998-07-06 |
KR100225347B1 KR100225347B1 (ko) | 1999-10-15 |
Family
ID=19475285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960042340A KR100225347B1 (ko) | 1996-09-25 | 1996-09-25 | 디지탈 영상의 이산여현변환 블럭 지정장치(a delay apparatus for dct block) |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100225347B1 (ko) |
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1996
- 1996-09-25 KR KR1019960042340A patent/KR100225347B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100225347B1 (ko) | 1999-10-15 |
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