KR920013385A - 정보기록장치 - Google Patents

정보기록장치 Download PDF

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KR920013385A
KR920013385A KR1019910023826A KR910023826A KR920013385A KR 920013385 A KR920013385 A KR 920013385A KR 1019910023826 A KR1019910023826 A KR 1019910023826A KR 910023826 A KR910023826 A KR 910023826A KR 920013385 A KR920013385 A KR 920013385A
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recording
block
variable length
small
codeword
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KR1019910023826A
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KR950014669B1 (ko
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타쯔로 쥬리
마사카즈 니시노
히데끼 오오타카
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다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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    • 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
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to coding
    • 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
    • H04N19/10—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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H04N9/8047—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction using transform coding
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • 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
    • H04N19/149—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
    • 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
    • H04N19/15—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
    • 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
    • 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

Abstract

내용 없음

Description

정보기록장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예의 블록도, 제2도는 본 발명의 배열바꾸기의 블록도.

Claims (6)

  1. 화상 또는 음성정보를 복수화소씩 모아서 소블록을 구성하는 소블록화수단과, 상기 소블록화수단으로 얻게 된 소블록마다 직교성분으로 변환하는 직교변환 수단과, 상기 직교변환수단으로 얻게된 직교성분을 바꾸어 배열하는 배열바꾸기수단과, 상기 직교변환수단으로 얻게된 직교성분을 양자화하여 가변길이부호화하는 가변길이부호화수단과, 상기 소블록마다 고정길이의 기록블록을 정하고 상기 가변길이의 부호화수단으로 얻게된 소블록마다의 가변길이부호어를 상기 기록블록에 기록할때에, 상기 소블록의 가변길이부호어를 상기 기록블록의 앞에서 부터 기록해가고, 상기 기록블록의 소정의 위치까지 가변길이부호어를 기록하였을 경우에는, 그 이후의 가변길이부호어를 상기 기록블록에 기록하지 않고 한번 분리하는 가변길이부호어분리수단과, 상기 가변길이부호어분리수단에 의해서 발생하는 가소블록의 데이터가 기록되어있지않는 빈자리부분, 또는 상기 소블록의 기록블록에 모든 가변길이부호어가 기록된 후에 남아있는 빈자리부분에 대해서, 상기 분리된 가변길이 부호어를 복수의 소블록분을 모아서 기록해가는 빈자리부분기록수단을 구비하는 것을 특징으로 하는 기록장치.
  2. 제1항에 있어서, 상기 기록블록의 소정의 위치가, 상기 기록블록의 나머지의 비트수가 가변길이부호화수단으로 얻게되는 최대의 부호길이보다도 작게되는 위치인 것을 특징으로하는 기록장치.
  3. 제1항에 있어서, 가변길이부호화수단이, 1개의 부호어 또는 임의의 복수의 부호어의 연결에 대해서, 어느 특정한 비트패턴(이후 싱크패턴이라 호칭함)이 부호어의 최후의 부분밖에 발생하지 않는 부호어에 부호호화하는 것을 특징으로 하는 기록장치.
  4. 제1항에 있어서, 가변길이부호화수단이, 0의 값의 직교성분이 연속하는 길이와, 그 다음에 나타나는 직교 성분의 값의 2개의 요소를 통합해서 부호화하는 것을 특징으로 하는 기록장치.
  5. 제1항에 있어서, 배열바꾸기수단이, 직교성분을 시각상 중요한 순번으로 바꾸어 배열하는 것을 특징으로 하는 기록장치.
  6. 제1항에 있어서, 기록블록의 크기가 소블록에 입력되는 신호의 종류에 따라서 다른것을 특징으로 하는 기록장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910023826A 1990-12-21 1991-12-21 정보기록장치 KR950014669B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP90-404863 1990-12-21
JP2404863A JPH04221465A (ja) 1990-12-21 1990-12-21 記録装置

Publications (2)

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KR920013385A true KR920013385A (ko) 1992-07-29
KR950014669B1 KR950014669B1 (ko) 1995-12-13

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Country Link
US (1) US5272528A (ko)
EP (1) EP0492537B1 (ko)
JP (1) JPH04221465A (ko)
KR (1) KR950014669B1 (ko)
DE (1) DE69129653T2 (ko)

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DE19907729C2 (de) 1999-02-23 2001-02-22 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erzeugen eines Datenstroms aus Codeworten variabler Länge und Verfahren und Vorrichtung zum Lesen eines Datenstroms aus Codeworten variabler Länge
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Also Published As

Publication number Publication date
EP0492537A1 (en) 1992-07-01
EP0492537B1 (en) 1998-06-24
DE69129653T2 (de) 1999-01-28
US5272528A (en) 1993-12-21
DE69129653D1 (de) 1998-07-30
JPH04221465A (ja) 1992-08-11
KR950014669B1 (ko) 1995-12-13

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