KR970004810A - 고선명 텔레비젼 엔코더의 레이트 콘트롤러 - Google Patents

고선명 텔레비젼 엔코더의 레이트 콘트롤러 Download PDF

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KR970004810A
KR970004810A KR1019950019181A KR19950019181A KR970004810A KR 970004810 A KR970004810 A KR 970004810A KR 1019950019181 A KR1019950019181 A KR 1019950019181A KR 19950019181 A KR19950019181 A KR 19950019181A KR 970004810 A KR970004810 A KR 970004810A
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sequence
outputting
ram
step size
quantizer
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KR1019950019181A
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KR0153671B1 (ko
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김성정
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배순훈
대우전자 주식회사
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Priority to KR1019950019181A priority Critical patent/KR0153671B1/ko
Priority to US08/671,187 priority patent/US5777680A/en
Priority to CNB961071729A priority patent/CN1183770C/zh
Priority to IN1192CA1996 priority patent/IN189975B/en
Priority to EP96304820A priority patent/EP0751687B1/en
Priority to DE69637873T priority patent/DE69637873D1/de
Priority to JP8191427A priority patent/JPH0974565A/ja
Publication of KR970004810A publication Critical patent/KR970004810A/ko
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Publication of KR0153671B1 publication Critical patent/KR0153671B1/ko

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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • 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
    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
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    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
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    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/16—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter for a given display mode, e.g. for interlaced or progressive display mode
    • H—ELECTRICITY
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • 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
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/23406—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving management of server-side video buffer
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    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
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    • H04N19/146—Data rate or code amount at the encoder output
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
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  • Compression Or Coding Systems Of Tv Signals (AREA)
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Abstract

본 발명은 고선명 텔레비젼 엔코더의 레이트 콘트롤러에 관한 것으로, 픽처 동기(Picture-sync)신호를 카운팅하여 출력하는 카운처(40)와; 상기 카운터(40)로부터 입력된 카운트값과 외부에서 입력된 픽처타입(Picture-type)신호에 따라 양자화기의 스텝 사이즈(Mqunat)를 계산하여 출력하도록 제어하는 시퀀스를 출력하는 스테이트 머쉰(50); 양자화기의 스텝 사이즈(Mquant)를 계산하기 위한 각 초기값, 활성도 (actj), 비트 발생량(Si, Sp, Sb), 부분 계산값을 상기 시퀀스에 따라 선택적으로 출력하는 멀티플렉서부(60); 상기 멀티플렉서부(60)로부터 입력된 각 초기값, 활성도(actj), 비트 발생량(Si,Sp, Sb), 부분 계산 값을 상기 시퀀스에 따라 라이트하거나 라이트된 값을 리드하여 출력하는 메모리부(70); 상기 메모리부(70)에서 출력된 값을 계산하여 출력하는 연산부(80) 및; 상기 시퀀스에 따라 상기 연산부(80)에서 계산된 양자화기의스텝 사이즈(Mquant) 출력하는 버퍼(90)를 포함하여 구성되어, 스테이트 머쉰(50)에서 출력된 시퀸스에 의해 양자화기의스텝 사이즈(Mquant)를 계산함에 따라 계산하기 쉬울뿐만 아니라 원칩으로 구현하기 용이한 것이다.

Description

고선명 텔레비젼 엔코더의 레이트 콘트롤러
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명에 따른 고선명 텔레비젼 엔코더의 레이트 콘트롤러의 블럭도, 제3도는 본 발명에 따른 스테이트 머쉰에서 출력되는 시퀀스의 구조도이다.

Claims (3)

  1. 양자화기의 스텝 사이즈(Mquant)를 제어하는 레이트 콘트롤러에 있어서, 픽처 동기 (Picture-sync)신호를카운팅하여 출력하는 카운터(40)와; 상기 카운터(40)로부터 입력된 카운트값과 외부에서 입력된 픽처 타입(Picture-type)신호에 따라 양자화기의 스텝 사이즈(Mqunat)를 계산하여 출력하도록 제어하는 시퀀스를 출력하는 스테이트 머쉰(50); 양자화기의 스텝 사이즈(Mquant)를 계산하기 위한 각 초기값(Xi,Xp,Xb,Ni,Np,Nb...), 활성도(actj), 비트 발생량(Si,Sp,Sb), 부분 계산값을 상기 시퀀스에 따라 선택적으로 출력하는 멀티플렉서부(60); 상기 멀티플렉서부(60)로부터 입력된 각 초기값(Xi,Xp,Xb,Ni,Np,Nb....), 활성도(actj), 비트 발생량(Si,Sp,Sb), 부분 계산값을 상기 시퀀스에 따라 라이트된 값을 리드하여 출력하는 메모리부(70); 상기 시퀀스에 따라 함수 선택을 하여 상기 메모리부(70)에서출력된 값을 선택된 함수에 따라 계산하여 출력하는 출력하는 연산부(80)및; 상기 시퀀스에 따라 상기 연산부(80)에서 계산된 양자화기의 스텝 사이즈(Mquant)출력하는 버퍼(90)를 포함하여 구성된 것을 특징으로 하는 고선명 텔레비젼 엔코더의 레이트 콘트롤러.
  2. 제1항에 있어서, 상기 메모리부(70)는, 분자와 양(+)의 성분을 저장하는 제1램(72)과, 분모와 음(-)의 성분을 저장하는 제2램(74)으로 이루어진 것을 특징으로 하는 고선명 텔레비젼 엔코더의 레이트 콘트롤러.
  3. 제1항에 있어서, 상기 스테이트 머쉰(50)에서 출력되는 시퀸스는, 픽처 타입(picture-type),함수 선택(function-select), 제1램 리드어드레스(radrs-left), 제2램 리드어드레스(radrs-right), 제1램 라이트어드레스(wadrs-left), 제2램 라이트어드레스(wadrs-right), 제1램 라이트인에이블신호(wren-left), 제2램 라이트인에이블신호(wren-right), 제1먹스 선택신호(muxsel-left), 제2먹스 선택신호(muxel-right),버퍼인에이블신호(enable)로 포맷된 코드로 구성된 것을 특징으로 하는 고선명 텔레비젼 엔코더의 레이트 콘트롤러.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950019181A 1995-06-30 1995-06-30 고선명 텔레비젼 엔코더의 레이트 콘트롤러 KR0153671B1 (ko)

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KR1019950019181A KR0153671B1 (ko) 1995-06-30 1995-06-30 고선명 텔레비젼 엔코더의 레이트 콘트롤러
US08/671,187 US5777680A (en) 1995-06-30 1996-06-27 Video signal encoding system controller for deciding an inter/intra mode, a field/frame DCT mode, and a quantization parameter
CNB961071729A CN1183770C (zh) 1995-06-30 1996-06-28 视频信号编码系统控制器
IN1192CA1996 IN189975B (ko) 1995-06-30 1996-06-28
EP96304820A EP0751687B1 (en) 1995-06-30 1996-06-28 Video signal encoding system controller
DE69637873T DE69637873D1 (de) 1995-06-30 1996-06-28 Steuervorrichtung für ein Videosignalkodierungssystem
JP8191427A JPH0974565A (ja) 1995-06-30 1996-07-01 映像信号符号化システム用コントローラ

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KR1019950019181A KR0153671B1 (ko) 1995-06-30 1995-06-30 고선명 텔레비젼 엔코더의 레이트 콘트롤러

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KR0153671B1 KR0153671B1 (ko) 1998-11-16

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US (1) US5777680A (ko)
EP (1) EP0751687B1 (ko)
JP (1) JPH0974565A (ko)
KR (1) KR0153671B1 (ko)
CN (1) CN1183770C (ko)
DE (1) DE69637873D1 (ko)
IN (1) IN189975B (ko)

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DE69637873D1 (de) 2009-04-30
EP0751687A3 (en) 1998-11-18
IN189975B (ko) 2003-05-24
EP0751687B1 (en) 2009-03-18
CN1143301A (zh) 1997-02-19
KR0153671B1 (ko) 1998-11-16
US5777680A (en) 1998-07-07
JPH0974565A (ja) 1997-03-18
EP0751687A2 (en) 1997-01-02
CN1183770C (zh) 2005-01-05

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