WO1987004842A1 - Method of erasing information - Google Patents

Method of erasing information Download PDF

Info

Publication number
WO1987004842A1
WO1987004842A1 PCT/SU1987/000020 SU8700020W WO8704842A1 WO 1987004842 A1 WO1987004842 A1 WO 1987004842A1 SU 8700020 W SU8700020 W SU 8700020W WO 8704842 A1 WO8704842 A1 WO 8704842A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
slοy
ποlοsτ
inφορmatsii
slοya
Prior art date
Application number
PCT/SU1987/000020
Other languages
English (en)
French (fr)
Russian (ru)
Inventor
Vyacheslav Vasilievich Petrov
Nikolai Vasilievich Gorshkov
Alexandr Alexandrovich Antonov
Alexandr Petrovich Tokar
Andrei Andreevich Krjuchin
Semen Mikhailovich Shanoilo
Original Assignee
Institut Problem Modelirovania V Energetike Akadem
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 Institut Problem Modelirovania V Energetike Akadem filed Critical Institut Problem Modelirovania V Energetike Akadem
Priority to JP62501707A priority Critical patent/JPH0654540B2/ja
Priority to BR8705406A priority patent/BR8705406A/pt
Priority to HU871858A priority patent/HU200020B/hu
Priority to IN321/CAL/87A priority patent/IN168113B/en
Publication of WO1987004842A1 publication Critical patent/WO1987004842A1/ru

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0025Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cylinders or cylinder-like carriers or cylindrical sections or flat carriers loaded onto a cylindrical surface, e.g. truncated cones
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055Erasing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Definitions

  • the removal of the medium causes a change in the degree of crystallization of the registered layer of the information carrier / cm. ⁇ , ⁇ , 2482756 /. 15
  • the waste time requires a longer life due to the need to slowly heat up the carrier, and then accurately maintain the specified temperature.
  • P ⁇ e ⁇ mu s ⁇ s ⁇ b maya ⁇ iz- v ⁇ di ⁇ elen not ⁇ bes ⁇ echivae ⁇ ⁇ ebuem ⁇ y nadezhn ⁇ s ⁇ i ⁇ v ⁇ - n ⁇ y za ⁇ isi, ⁇ a ⁇ ⁇ a ⁇ ⁇ i ⁇ v ⁇ enii za ⁇ isi and s ⁇ i ⁇ anii u ⁇ ud- 20 shae ⁇ sya s ⁇ u ⁇ u ⁇ a ⁇ e ⁇ S ⁇ g ⁇ uscheg ⁇ sl ⁇ ya and eg ⁇ ⁇ lschina s ⁇ a- n ⁇ si ⁇ sya ne ⁇ avn ⁇ me ⁇ n ⁇ y. This cuts out the quantity of the recipe.
  • the main task of the invention is to create a system of the device. - 2 - Multiply register on the same optical information carrier.
  • the proposed method of installing information recorded on an optical media may be dependent on a non-removable media device
  • the optical information carrier supports the product, which, as a result of this, is made in the form of a cylinder I from the material, which is used for radiation - 3 - the quantized generator / is not shown on the drawing /, for example, from the glass.
  • Tsshshnd ⁇ I is complete, and on its internal side is used the registration layer 2 in the form of a tint film, for example, from or. .
  • the registration layer 2 in the form of a tint film, for example, from or. .
  • cylinder I there is a turntable 3 and 4, forming a turntable
  • Unit 3 is located on unit 6 for the extraction of gas from the mains and the consequent filling of gas that is inert to the tank and is non-corrosive.
  • the gas pressure in the pressurized area 5 is selected from the ⁇ - ⁇ 3 kPa range.
  • the gas pressure is below 10 kPa, which results in an excessively high velocity of the material that is damaged.
  • the most preferable is the gas pressure at around 5 with a magnitude of about 10 Pa, which is close to the ambient pressure.
  • giving the medium to be loaded with excess pressure can be both external and internal.
  • the cylindrical media of the information carrier is the most advantageous, since it is much less advantageous than the best to the best ⁇ the presence of gas in the area 5 makes it possible to reduce the excess
  • the information carrier is designed to operate externally, for example, it is heated by any known method. With this material, Layer 2 practically completely evaporates. Then heats up and, in turn, forms a registering layer, so that the information carrier is allowed to freeze. And
  • the source of the fluid is the non-refrigerated power supply of the The presence of an internal media carrier
  • the invention may be used in computing technology, in the video and audio devices, and in the storage and processing systems, in addition to the fact that the user is in charge of it.

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
PCT/SU1987/000020 1986-02-07 1987-02-05 Method of erasing information WO1987004842A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62501707A JPH0654540B2 (ja) 1986-02-07 1987-02-05 情報の消去方法
BR8705406A BR8705406A (pt) 1986-02-07 1987-02-05 Processo para apagar informacao
HU871858A HU200020B (en) 1986-02-07 1987-02-05 Method for erasing the information inscribed in the signal recording layer of information carrier unit of optical storage
IN321/CAL/87A IN168113B (en, 2012) 1986-02-07 1987-04-23

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU3134138/24 1986-02-07
SU863134138A SU1628081A1 (ru) 1986-02-07 1986-02-07 Носитель информации оптического запоминающего устройства

Publications (1)

Publication Number Publication Date
WO1987004842A1 true WO1987004842A1 (en) 1987-08-13

Family

ID=20928595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SU1987/000020 WO1987004842A1 (en) 1986-02-07 1987-02-05 Method of erasing information

Country Status (9)

Country Link
US (1) US4875204A (en, 2012)
EP (1) EP0256143A4 (en, 2012)
JP (1) JPH0654540B2 (en, 2012)
CN (1) CN1010442B (en, 2012)
HU (1) HU200020B (en, 2012)
IN (1) IN168113B (en, 2012)
SU (1) SU1628081A1 (en, 2012)
WO (1) WO1987004842A1 (en, 2012)
YU (1) YU17887A (en, 2012)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203599A1 (de) * 1981-02-05 1982-08-12 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Datenaufzeichnungsmaterial
US4403318A (en) * 1980-04-23 1983-09-06 Matsushita Electric Industrial Co., Ltd. Apparatus and method for recording, reproducing and erasing on optical recording discs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074282A (en) * 1976-05-13 1978-02-14 North American Philips Corporation Radiation-sensitive record with protected sensitive surface
DE3118058A1 (de) * 1980-05-14 1982-03-11 RCA Corp., 10020 New York, N.Y. Aufzeichnungstraeger und verfahren zum schreiben einer informationsspur sowie zum loeschen einer in dem traeger gespeicherten information
US4331966A (en) * 1980-10-06 1982-05-25 Storage Technology Corporation Information storage device and method of forming same
US4519061A (en) * 1983-06-27 1985-05-21 Eastman Kodak Company Sealed optical disk unit, apparatus and method for debris-suppressed recording
US4719615A (en) * 1983-08-22 1988-01-12 Optical Data, Inc. Erasable optical data storage medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403318A (en) * 1980-04-23 1983-09-06 Matsushita Electric Industrial Co., Ltd. Apparatus and method for recording, reproducing and erasing on optical recording discs
DE3203599A1 (de) * 1981-02-05 1982-08-12 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Datenaufzeichnungsmaterial

Also Published As

Publication number Publication date
IN168113B (en, 2012) 1991-02-09
SU1628081A1 (ru) 1991-02-15
HUT47756A (en) 1989-03-28
EP0256143A4 (de) 1988-09-19
EP0256143A1 (de) 1988-02-24
CN87101611A (zh) 1987-10-07
US4875204A (en) 1989-10-17
JPH0654540B2 (ja) 1994-07-20
CN1010442B (zh) 1990-11-14
JPS63503415A (ja) 1988-12-08
YU17887A (en) 1989-06-30
HU200020B (en) 1990-03-28

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