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NO953193L - Fremgangsmåte og anordning for effektiv adressering av DRAM i en video dekompresjonsprossesor - Google Patents

Fremgangsmåte og anordning for effektiv adressering av DRAM i en video dekompresjonsprossesor

Info

Publication number
NO953193L
NO953193L NO953193A NO953193A NO953193L NO 953193 L NO953193 L NO 953193L NO 953193 A NO953193 A NO 953193A NO 953193 A NO953193 A NO 953193A NO 953193 L NO953193 L NO 953193L
Authority
NO
Norway
Prior art keywords
pixel data
decompression processor
storage
direct
stored
Prior art date
Application number
NO953193A
Other languages
English (en)
Other versions
NO953193D0 (no
Inventor
Chris Hoogenboom
Bao Vuong
Original Assignee
Gen Instrument Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gen Instrument Corp filed Critical Gen Instrument Corp
Publication of NO953193D0 publication Critical patent/NO953193D0/no
Publication of NO953193L publication Critical patent/NO953193L/no

Links

Classifications

    • 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
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
    • 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
    • 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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Color Television Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Pikseldata blir lagret og senere lest fra et dlrekte- 1 lager (22) l en vldeodekompresjonsprosessor (20) på en måte som reduserer det antall ganger forskjellige rader l direktelageret (22) må adresseres for uthentnlng av deler av pikseldata fra dette. Pikseldata fra et videodelbilde (70) blir lagret i direktelageret på en rekke sider. Hver side fyller så godt som en egen rad i direktelageret (22) og svarer til en egen seksjon av vldeodelbildet (70). En bevegelsesvektor (MV) blir dekodet for å bestemme posisjonen av et forutsigel- sesområde (90) innen vldeodelbildet (70). I tilfellet at forutslgelsesområdet (90) omfatter mer enn en av j sidene i videodelblldet (70), blir pikseldata hentet ut i fra en side om gangen, noe som reduserer det antall ! radvekslInger som er nødvendig ved adressering av direktelageret (22) for å hente ut data.
NO953193A 1994-08-15 1995-08-14 Fremgangsmåte og anordning for effektiv adressering av DRAM i en video dekompresjonsprossesor NO953193L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29037294A 1994-08-15 1994-08-15

Publications (2)

Publication Number Publication Date
NO953193D0 NO953193D0 (no) 1995-08-14
NO953193L true NO953193L (no) 1996-02-16

Family

ID=23115695

Family Applications (1)

Application Number Title Priority Date Filing Date
NO953193A NO953193L (no) 1994-08-15 1995-08-14 Fremgangsmåte og anordning for effektiv adressering av DRAM i en video dekompresjonsprossesor

Country Status (11)

Country Link
US (1) US5675387A (no)
EP (1) EP0697794B1 (no)
JP (1) JPH08195960A (no)
KR (1) KR100376207B1 (no)
CN (1) CN1110965C (no)
AU (1) AU688521B2 (no)
BR (1) BR9503640A (no)
CA (1) CA2155260C (no)
DE (1) DE69526470T2 (no)
NO (1) NO953193L (no)
TW (1) TW245871B (no)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT651574E (pt) * 1993-03-24 2002-02-28 Sony Corp Processo e aparelho para codiicar/descodificar um vector de movimento e processo para codificacao/descodificacao de um sinal de imagem
EP0710033A3 (en) * 1994-10-28 1999-06-09 Matsushita Electric Industrial Co., Ltd. MPEG video decoder having a high bandwidth memory
US5946044A (en) * 1995-06-30 1999-08-31 Sony Corporation Image signal converting method and image signal converting apparatus
EP0793389B1 (en) * 1996-02-27 2001-08-16 STMicroelectronics S.r.l. Memory reduction in the MPEG-2 main profile main level decoder
EP0793390A3 (fr) * 1996-02-28 1999-11-03 Koninklijke Philips Electronics N.V. Dispositif de décodage de signaux de type MPEG
KR100194039B1 (ko) * 1996-04-19 1999-06-15 윤종용 엠펙 시스템의 우선순위 처리회로
US5854757A (en) * 1996-05-07 1998-12-29 Lsi Logic Corporation Super-compact hardware architecture for IDCT computation
DE69614675T2 (de) * 1996-06-28 2001-12-06 Stmicroelectronics S.R.L., Agrate Brianza MPEG-2 Dekodierung mit reduziertem RAM Bedürfnis durch ADPCM Rekomprimierung vor der Speicherung von dekomprimierten MPEG-2 Daten, wahlweise nach einem Unterabtastungsalgorithmus
JP3825888B2 (ja) * 1996-07-19 2006-09-27 キヤノン株式会社 信号処理装置／方法及びメモリ記憶方法
CN1162010C (zh) * 1996-08-29 2004-08-11 松下电器产业株式会社 图象译码设备和图象存储器
US6028635A (en) * 1996-12-03 2000-02-22 Stmicroelectronics, Inc. Reducing the memory required for decompression by storing compressed information using DCT based techniques
US6005624A (en) * 1996-12-20 1999-12-21 Lsi Logic Corporation System and method for performing motion compensation using a skewed tile storage format for improved efficiency
US5883679A (en) * 1997-02-20 1999-03-16 C-Cube Microsystems, Inc. Scanning scheme for images stored in dynamic random access memory
GB2329802B (en) * 1997-06-28 1999-08-18 United Microelectronics Corp Adaptive-selection method for memory access priority control in MPEG processor
US6215822B1 (en) 1997-12-30 2001-04-10 Sony Corporation Motion compensated digital video decoding and buffer memory addressing therefor
US6088047A (en) * 1997-12-30 2000-07-11 Sony Corporation Motion compensated digital video decoding with buffered picture storage memory map
WO1999016252A1 (en) * 1997-09-19 1999-04-01 Sony Electronics Inc. Motion compensated digital video decoding with buffered picture storage memory map
NL1007453C2 (nl) * 1997-11-05 1999-05-07 United Microelectronics Corp Zich aanpassende kieswerkwijze voor het regelen van de geheugentoegangsprioriteit in een MPEG-processor.
US6104416A (en) * 1997-11-18 2000-08-15 Stmicroelectronics, Inc. Tiling in picture memory mapping to minimize memory bandwidth in compression and decompression of data sequences
US6028612A (en) * 1997-11-18 2000-02-22 Stmicroelectronics, Inc. Picture memory mapping to minimize memory bandwidth in compression and decompression of data sequences
US6198773B1 (en) * 1997-12-18 2001-03-06 Zoran Corporation Video memory management for MPEG video decode and display system
KR100282389B1 (ko) * 1997-12-31 2001-02-15 구자홍 에이치디티브이 비디오 디코더의 메모리 제어 방법
US6823016B1 (en) * 1998-02-20 2004-11-23 Intel Corporation Method and system for data management in a video decoder
CA2267870A1 (en) * 1998-04-01 1999-10-01 Scott Hartog A linear surface memory to spatial tiling algorithm/mechanism
US6310919B1 (en) * 1998-05-07 2001-10-30 Sarnoff Corporation Method and apparatus for adaptively scaling motion vector information in an information stream decoder
US6567981B1 (en) 1998-08-03 2003-05-20 Elysium Broadband Inc. Audio/video signal redistribution system
CN1266942C (zh) * 1998-12-15 2006-07-26 松下电器产业株式会社 图像处理装置
FR2787669B1 (fr) * 1998-12-22 2001-03-02 Thomson Multimedia Sa Procede d'adressage pour la memorisation de blocs d'image
US6115072A (en) * 1999-01-27 2000-09-05 Motorola, Inc. 16:9 aspect ratio conversion by letterbox method for an MPEG image
US6377713B1 (en) 1999-01-27 2002-04-23 General Instrument Corporation Synchronous DRAM bandwidth optimization for display downsizing of an MPEG-2 image
JP2001157204A (ja) * 1999-11-25 2001-06-08 Nec Corp 動画像復号化方法及び装置
KR100349058B1 (ko) * 2000-06-15 2002-08-21 (주)씨앤에스 테크놀로지 영상압축복원장치
US6724818B1 (en) * 2000-07-17 2004-04-20 Telefonaktiebolaget Lm Ericsson (Publ) Alternative block orders for better prediction
EP1185109A1 (de) * 2000-08-10 2002-03-06 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Speicherung von Videobildern sowie Mobilfunkgerät
US7225320B2 (en) * 2000-12-28 2007-05-29 Koninklijke Philips Electronics N.V. Control architecture for a high-throughput multi-processor channel decoding system
EP1231794A1 (en) * 2001-02-09 2002-08-14 STMicroelectronics S.r.l. A process for changing the resolution of MPEG bitstreams, a system and a computer program product therefor
EP1231793A1 (en) * 2001-02-09 2002-08-14 STMicroelectronics S.r.l. A process for changing the syntax, resolution and bitrate of MPEG bitstreams, a system and a computer program product therefor
TW515952B (en) * 2001-04-23 2003-01-01 Mediatek Inc Memory access method
US8401084B2 (en) * 2002-04-01 2013-03-19 Broadcom Corporation System and method for multi-row decoding of video with dependent rows
US8037261B2 (en) 2002-06-12 2011-10-11 International Business Machines Corporation Closed-loop system for dynamically distributing memory bandwidth
EP1602240A2 (en) 2003-03-03 2005-12-07 Mobilygen Corporation Array arrangement for memory words and combination of video prediction data for an effective memory access
US8428349B2 (en) * 2003-05-21 2013-04-23 Broadcom Corporation Method and apparatus for DRAM 2D video word formatting
US7715479B2 (en) * 2003-07-21 2010-05-11 International Business Machines Corporation Power-aware on-chip memory management for video coding algorithms
US7400683B2 (en) * 2003-11-18 2008-07-15 Lsi Corporation Device with virtual tilized image memory
KR20050078706A (ko) * 2004-01-31 2005-08-08 삼성전자주식회사 메모리 액세스 방법 및 메모리 액세스 장치
US8948263B2 (en) * 2004-02-03 2015-02-03 Broadcom Corporation Read/write separation in video request manager
US20050232355A1 (en) * 2004-04-15 2005-10-20 Srinivas Cheedela Video decoder for supporting both single and four motion vector macroblocks
US8861600B2 (en) * 2004-06-18 2014-10-14 Broadcom Corporation Method and system for dynamically configurable DCT/IDCT module in a wireless handset
JP4909779B2 (ja) * 2006-04-17 2012-04-04 パナソニック株式会社 画像データ転送方法、画像処理装置、及び撮像システム
JP2007300396A (ja) * 2006-04-28 2007-11-15 Matsushita Electric Ind Co Ltd 映像再生装置
US7768520B2 (en) * 2006-05-03 2010-08-03 Ittiam Systems (P) Ltd. Hierarchical tiling of data for efficient data access in high performance video applications
FR2902906A1 (fr) * 2006-06-21 2007-12-28 St Microelectronics Sa Gestion de donnes pour un traitement d'images
US20080158601A1 (en) * 2006-12-29 2008-07-03 Steven Tu Image memory tiling
US8127058B1 (en) * 2008-07-29 2012-02-28 Marvell International Ltd. System and method of video decoding using hybrid buffer
US8477146B2 (en) 2008-07-29 2013-07-02 Marvell World Trade Ltd. Processing rasterized data
KR101661931B1 (ko) * 2010-02-12 2016-10-10 삼성전자주식회사 3차원 그래픽스 랜더링 장치 및 그 방법
US9544587B2 (en) 2012-05-14 2017-01-10 Google Technology Holdings LLC Scalable video coding with enhanced base layer
US10085016B1 (en) 2013-01-18 2018-09-25 Ovics Video prediction cache indexing systems and methods
US9762919B2 (en) 2014-08-28 2017-09-12 Apple Inc. Chroma cache architecture in block processing pipelines
TWI681362B (zh) * 2018-03-01 2020-01-01 瑞昱半導體股份有限公司 有限記憶體頻寬系統及其動態限制圖形處理器的記憶體頻寬的方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03238990A (ja) * 1990-02-15 1991-10-24 Canon Inc メモリ制御回路
US5091782A (en) 1990-04-09 1992-02-25 General Instrument Corporation Apparatus and method for adaptively compressing successive blocks of digital video
US5068724A (en) 1990-06-15 1991-11-26 General Instrument Corporation Adaptive motion compensation for digital television
US5093720A (en) 1990-08-20 1992-03-03 General Instrument Corporation Motion compensation for interlaced digital television signals
JPH04139986A (ja) * 1990-09-29 1992-05-13 Victor Co Of Japan Ltd 画像信号の動き補償予測符号化／復号化装置
US5293593A (en) * 1990-10-11 1994-03-08 Hewlett-Packard Company Method and apparatus for the mapping of physically non-contiguous memory fragments to be linearly addressable
US5057916A (en) 1990-11-16 1991-10-15 General Instrument Corporation Method and apparatus for refreshing motion compensated sequential video images
JPH04207788A (ja) * 1990-11-30 1992-07-29 Sony Corp 画像信号符号化装置及び方法
CA2062200A1 (en) * 1991-03-15 1992-09-16 Stephen C. Purcell Decompression processor for video applications
AU657510B2 (en) * 1991-05-24 1995-03-16 Apple Inc. Improved image encoding/decoding method and apparatus
US5235419A (en) 1991-10-24 1993-08-10 General Instrument Corporation Adaptive motion compensation using a plurality of motion compensators
US5315388A (en) * 1991-11-19 1994-05-24 General Instrument Corporation Multiple serial access memory for use in feedback systems such as motion compensated television
US5379070A (en) * 1992-10-02 1995-01-03 Zoran Corporation Parallel encoding/decoding of DCT compression/decompression algorithms
US5386233A (en) * 1993-05-13 1995-01-31 Intel Corporation Method for efficient memory use
US5406311A (en) * 1993-08-25 1995-04-11 Data Translation, Inc. Storing a digitized stream of interlaced video image data in a memory in noninterlaced form
US5398072A (en) * 1993-10-25 1995-03-14 Lsi Logic Corporation Management of channel buffer in video decoders

Also Published As

Publication number Publication date
EP0697794A2 (en) 1996-02-21
DE69526470D1 (de) 2002-05-29
NO953193D0 (no) 1995-08-14
KR960009748A (ko) 1996-03-22
CA2155260A1 (en) 1996-02-16
US5675387A (en) 1997-10-07
KR100376207B1 (ko) 2003-05-01
AU2729195A (en) 1996-02-29
CN1110965C (zh) 2003-06-04
TW245871B (en) 1995-04-21
DE69526470T2 (de) 2002-12-19
EP0697794B1 (en) 2002-04-24
HK1012140A1 (en) 1999-07-23
AU688521B2 (en) 1998-03-12
JPH08195960A (ja) 1996-07-30
CA2155260C (en) 2001-12-04
BR9503640A (pt) 1996-05-28
EP0697794A3 (en) 1998-04-29
CN1121673A (zh) 1996-05-01

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