KR920008722A - 디지탈화상신호의 자기기록방법 - Google Patents

디지탈화상신호의 자기기록방법 Download PDF

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KR920008722A
KR920008722A KR1019910017950A KR910017950A KR920008722A KR 920008722 A KR920008722 A KR 920008722A KR 1019910017950 A KR1019910017950 A KR 1019910017950A KR 910017950 A KR910017950 A KR 910017950A KR 920008722 A KR920008722 A KR 920008722A
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magnetic
magnetic recording
recording medium
block
image signal
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KR1019910017950A
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English (en)
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KR100201444B1 (ko
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가즈노부 지바
겐이찌 사또
유이찌 아리사까
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오오가 노리오
소니 가부시기가이샤
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00847—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks
    • G11B5/0086—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks using cyclically driven heads providing segmented tracks
    • 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
    • G11B20/00007—Time or data compression or expansion
    • 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
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1813—Pulse code modulation systems for audio signals by adding special bits or symbols to the coded information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/21—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being of ferrous sheet metal or other magnetic layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73931—Two or more layers, at least one layer being polyester
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73935—Polyester substrates, e.g. polyethylene terephthalate characterised by roughness or surface features, e.g. by added particles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • 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
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음

Description

디지탈화상신호의 자기기록방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일실시예에 있어서의 신호처리부의 기록측의 구성을 나타낸 블록도.
제2도는 신호처리부의 재생측의 구성을 나타낸 블록도.
제3도는 블록부호화를 위한 블록의 일예의 나타낸 약선도.

Claims (4)

  1. 입력디지탈화상신호를 복수의 화소데이터로 이루어지는 블록단위의 데이터로 변환하여 블록화하고, 이 블록화된 데이터를 블록단위로 압축부호화하고, 이 압축부호화된 데이터를 채널부호화하고, 이 채널부호화된 데이터를 회전드럼에 장착된 자기헤드에 의해 자기기록매체에 기록하도록 한 디지탈화상신호의 자기기록방법에 있어서, 상기 자기록매체는 비자성지지체위에 금속자성박막으로 이루어지는 자성층을 형성하여 이루어지며, 상기 자성층의 잔류자속밀도와 두께와 항자력(抗磁力)의 적(積)으로 이루어지는 에너지적은 100G·㎝·Oe이상이며, 상기 자기기록매체의 표면거칠기는 중심선 평균거칠기로 0.003㎛이하인 것을 특징으로 하는 디지탈화상신호의 자기기록방법.
  2. 입력디지탈화상신호를 복수의 화소데이터로 이루어지는 블록단위의 데이터로 변환하여 블록화하고, 이 블록화된 데이터를 블록 단위로 압축부호화하고, 이 압축부호화된 데이터를 채널부호화하고, 이 채널부호화된 데이터를 회전드럼에 장착된 자기헤드에 의해 자기기록매체에 기록하도록 한 디지탈화상신호의 자기기록방법에 있어서, 상기 자기기록매체는 비자성지지체위에 금속자성박막으로 이루어지는 자성층을 형성하여 이루어지며, 상기 자성층의 잔류자속밀도와 두께와 항자력의 적으로 이루어지는 에너지적은 100G·㎝·Oe이상이며, 상기 자기기록매체의 표면거칠기는 중심선평균거칠기로 0.003㎛이하이며, 갭근방에 포화자속밀도가 14kG 이상의 금속자성재료를 사용한 자기헤드에 의해 상기 자기기록매체에 디지탈화상신호를 기록하도록 한 것을 특징으로 하는 디지탈화상신호의 자기기록방법.
  3. 입력디지탈화상신호를 복수의 화소데이터로 이루어지는 블록단위의 데이터로 변환하여 블록화하고, 이블록화된 데이터를 블록단위로 압축부호화하고, 이 압축부호화된 데이터를 채널부호화하고, 이 채널부호화된 데이터를 회전드럼에 장착된 자기헤드에 의해 자기기록매체에 기록하도록 한 디지탈화상신호의 자기기록방법에 있어서, 상기 자기기록매체는 비자성지지체위에 금속자성박막으로 이루어지는 복수층의 자성층을 형성하여 이루어지며, 상기 자성층의 잔류자속밀도와 두께와 항자력의 적으로 이루어지는 에너지적은 100G·㎝·Oe이상이며, 상기 자기기록매체의 표면거칠기는 중심선평균거칠기로 0.003㎛이하인 것을 특징으로 하는 디지탈화상신호의 자기기록방법.
  4. 입력디지탈화상신호를 복수의 화소데이터로 이루어지는 블록단위의 데이터로 변환하여 블록화하고, 이블록화된 데이터를 블록단위로 압축부호화하고, 이 압축부호화된 데이터를 채널부호화하고, 이 채널부호화된 데이터를 회전드럼에 장착된 자기헤드에 의해 자기기록매체에 기록하도록 한 디지탈화상신호의 자기기록방법에 있어서, 상기 자기기록매체는 비자성지지체위에 금속자성박막으로 이루어지는 복수층의 자성층을 형성하여 이루어지며, 상기 자성층의 잔류자속밀도와 두께와 항자력의 적으로 이루어지는 에너지적은 100G·㎝·Oe이상이며, 상기 자기기록매체의 표면거칠기는 중심선평균거칠기로 0.003㎛이하이며, 갭근방에 포화자속밀도가 14kG 이상의 금속자성재료를 사용한 자기헤드에 의해 상기자기기록매체에 디지탈화상신호를 기록하도록 한 것을 특징으로 하는 디지탈화상신호의 자기기록방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910017950A 1990-10-31 1991-10-12 디지탈화상신호의 자기기록방법 KR100201444B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29467690A JP3104250B2 (ja) 1990-10-31 1990-10-31 ディジタル画像信号の磁気記録方法
JP90-294,676 1990-10-31

Publications (2)

Publication Number Publication Date
KR920008722A true KR920008722A (ko) 1992-05-28
KR100201444B1 KR100201444B1 (ko) 1999-06-15

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KR1019910017950A KR100201444B1 (ko) 1990-10-31 1991-10-12 디지탈화상신호의 자기기록방법

Country Status (5)

Country Link
US (1) US5253122A (ko)
EP (1) EP0483875B1 (ko)
JP (1) JP3104250B2 (ko)
KR (1) KR100201444B1 (ko)
DE (1) DE69125786T2 (ko)

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US6935225B2 (en) 2002-07-19 2005-08-30 Samsung Electronics Co., Ltd. Bread maker
KR101410249B1 (ko) * 2013-05-09 2014-06-20 주식회사 이노와이어리스 Ｃｒａｎ에서 ｄｕ와 ｒｕ간 ｉ/ｑ 데이터 압축 및 그 해제 방법

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JP3532221B2 (ja) * 1991-11-05 2004-05-31 ソニー株式会社 符号化方法
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US6977964B1 (en) 1994-04-12 2005-12-20 Mitsubishi Denki Kabushiki Kaisha Digital VTR for recording and replaying data depending on replay modes
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CN109857333B (zh) * 2017-11-30 2022-08-26 深圳市海思半导体有限公司 一种ssd介质的健康度处理方法、ssd控制器及磁盘阵列

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6935225B2 (en) 2002-07-19 2005-08-30 Samsung Electronics Co., Ltd. Bread maker
KR101410249B1 (ko) * 2013-05-09 2014-06-20 주식회사 이노와이어리스 Ｃｒａｎ에서 ｄｕ와 ｒｕ간 ｉ/ｑ 데이터 압축 및 그 해제 방법

Also Published As

Publication number Publication date
JP3104250B2 (ja) 2000-10-30
JPH04168607A (ja) 1992-06-16
EP0483875A2 (en) 1992-05-06
US5253122A (en) 1993-10-12
DE69125786D1 (de) 1997-05-28
KR100201444B1 (ko) 1999-06-15
EP0483875A3 (en) 1992-12-02
EP0483875B1 (en) 1997-04-23
DE69125786T2 (de) 1997-08-14

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