KR920703348A - Information recording method and magnetic recording medium - Google Patents

Information recording method and magnetic recording medium

Info

Publication number
KR920703348A
KR920703348A KR1019920700125A KR920700125A KR920703348A KR 920703348 A KR920703348 A KR 920703348A KR 1019920700125 A KR1019920700125 A KR 1019920700125A KR 920700125 A KR920700125 A KR 920700125A KR 920703348 A KR920703348 A KR 920703348A
Authority
KR
South Korea
Prior art keywords
heat treatment
recording medium
magnetic
magnetic recording
treatment portion
Prior art date
Application number
KR1019920700125A
Other languages
Korean (ko)
Inventor
기요시 호리에
Original Assignee
원본미기재
가부시키가이샤 씨에스케이
니혼 카드센터 가부시키가이샤
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
Priority claimed from JP2128926A external-priority patent/JPH0422696A/en
Priority claimed from JP2128927A external-priority patent/JPH0792891B2/en
Application filed by 원본미기재, 가부시키가이샤 씨에스케이, 니혼 카드센터 가부시키가이샤 filed Critical 원본미기재
Publication of KR920703348A publication Critical patent/KR920703348A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/125—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369—Magnetised or magnetisable materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/22—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for use in combination with accessories specially adapted for information-bearing cards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/12—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

내용 없음.No content.

Description

정보기록방법 및 자기기록매체Information recording method and magnetic recording medium

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 구체적인 실시예에 따라 정보기록 방법에 사용되는 자기기록 매체를 부분적인 단면으로 도시한 사시도.1 is a perspective view, partially in cross section, of a magnetic recording medium used in an information recording method according to a specific embodiment of the present invention;

제2도는 제1도의 열처리 부분의 출력파형을 도시한 차트, 제3도는 기록장치의 구체적인 실시예를 도시한 개략도.FIG. 2 is a chart showing the output waveform of the heat treatment portion of FIG. 1, and FIG. 3 is a schematic diagram showing a specific embodiment of the recording apparatus.

Claims (8)

데이터가 자기적으로 기록되는 자기층을 갖는 자기기록매체, 자기기록매체상에 정보를 부가적으로 기록하는 기록장치, 그리고 자기기록매체에 기록된 정보를 자기적으로 판독하는 판독장치로 구성되고, 적어도 자기층의 일부가 자화되는 열처리 부분이 자기기록매체에 제공되며, 그리고 이 매체가 열의 영향을 받지 않는 불투명한 코팅층으로 덮여지며, 상기 기록장치가 자기특성이 열에 의해 변화되는 열처리 마크를 갖는 자기기록매체의 열처리부분을 제공하는 열처리 마크형성장치를 가지며, 상기 판독장치가 상기 기록장치에 의해 쓰여진 자기 기록 매체상의 정보를 자기적으로 판독하는 것을 특징으로 하는 정보기록방법.A magnetic recording medium having a magnetic layer in which data is magnetically recorded, a recording device for additionally recording information on the magnetic recording medium, and a reading device for magnetically reading the information recorded on the magnetic recording medium, A heat treatment portion at least a part of the magnetic layer is magnetized is provided on the magnetic recording medium, and the medium is covered with an opaque coating layer which is not influenced by heat, and the recording apparatus has a magnet having heat treatment marks whose magnetic properties are changed by heat. And a heat treatment mark forming apparatus for providing a heat treatment portion of the recording medium, wherein the reading apparatus magnetically reads information on a magnetic recording medium written by the recording apparatus. 제1항에 있어서, 상기 기록장치에서 제공된 열처리 마크형성장치가 상기 자기기록매체의 열처리부분을 가열하기 위한 레이저, 선결된 패턴에 의하여 열처리부분에 레이저에 의해 생긴 레이저빔 유도용 시준기, 회전식 다각형 미러, 그리고 F-θ렌즈로 구성되는 것을 특징으로 하는 정보기록방법.The heat treatment mark forming apparatus provided in the recording apparatus includes: a laser for heating the heat treatment portion of the magnetic recording medium, a collimator for laser beam guidance generated by the laser on the heat treatment portion by a predetermined pattern, and a rotating polygon mirror. And an F-θ lens. 제1항에 있어서, 기록장치에 제공된 열처리 마크형성장치가 열에 의해 자기기록매체의 열처리부분을 압축하는 블레이드를 갖춘 압축틀이고, 그리고 상기 압축틀의 블레이드가 선결된 정보를 지시하는 적어도 패턴의 일부분과 같은 패턴으로 배열된 것을 특징으로 하는 정보기록방법.2. The heat treatment mark forming apparatus provided in the recording apparatus according to claim 1, wherein the heat treatment mark forming apparatus is a compression frame having a blade for compressing a heat treatment portion of the magnetic recording medium by heat, and at least a portion of the pattern in which the blade of the compression frame indicates predetermined information. Information recording method, characterized in that arranged in the same pattern. 제1항에 있어서, DC자화가 자기기록 매체의 자기층에 제공된 열처리부분에 실시되는 것을 특징으로 하는 정보기록방법.An information recording method according to claim 1, wherein the DC magnetization is performed on a heat treatment portion provided on the magnetic layer of the magnetic recording medium. 제1항에 있어서, 신호자화가 자기기록매체의 자기층의 제공된 열처리 부분에 실시되는 것을 특징으로 하는 정보기록방법.An information recording method according to claim 1, wherein the signal magnetization is performed on a provided heat treatment portion of the magnetic layer of the magnetic recording medium. 데이터가 자기적으로 기록되는 자기 층으로 형성된 데이타 기록부분을 갖는 자기기록매체에 있어서, DC자화 또는 신호자화된 열처리 부분이 적어도 자기층의 일부에 제공되고, 그리고, 자기특성이 열에 의해 변화되는 열처리마크가 열처리 부분에 선결된 간격으로 제공되는 것을 특징으로 하는 자기기록매체.In a magnetic recording medium having a data recording portion formed of a magnetic layer in which data is magnetically recorded, a heat treatment portion in which a DC magnetized or signal magnetized heat treatment portion is provided at least in part of the magnetic layer, and whose magnetic properties are changed by heat. A magnetic recording medium, characterized in that marks are provided at predetermined intervals on the heat treatment portion. 제6항에 있어서, 압축된 패턴이 열처리 마크로 형성되는 것을 특징으로 하는 자기기록매체.7. The magnetic recording medium of claim 6, wherein the compressed pattern is formed of heat treatment marks. 제6항 또는 제7항에 있어서, 열의 영향을 받지 않는 불투명한 코팅층이 자기층의 표면에 제공되는 것을 특징으로 하는 자기기록매체.8. A magnetic recording medium according to claim 6 or 7, wherein an opaque coating layer which is not affected by heat is provided on the surface of the magnetic layer. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920700125A 1990-05-18 1991-05-17 Information recording method and magnetic recording medium KR920703348A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP90-128,926 1990-05-18
JP2128926A JPH0422696A (en) 1990-05-18 1990-05-18 Magnetic recording medium
JP90-128,927 1990-05-18
JP2128927A JPH0792891B2 (en) 1990-05-18 1990-05-18 Information recording device
PCT/JP1991/000660 WO1991017895A1 (en) 1990-05-18 1991-05-17 Information recording system and magnetic recording medium

Publications (1)

Publication Number Publication Date
KR920703348A true KR920703348A (en) 1992-12-17

Family

ID=26464487

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920700125A KR920703348A (en) 1990-05-18 1991-05-17 Information recording method and magnetic recording medium

Country Status (2)

Country Link
KR (1) KR920703348A (en)
WO (1) WO1991017895A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950174A1 (en) * 1979-12-13 1981-06-19 Basf Ag, 6700 Ludwigshafen METHOD AND DEVICE FOR CHECKING THE AUTHENTICITY OF RECORDING CARRIERS TO BE SECURED AGAINST COUNTERFEITING
JPS61203478U (en) * 1985-06-11 1986-12-20

Also Published As

Publication number Publication date
WO1991017895A1 (en) 1991-11-28

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