GB1093436A - Improvements in or relating to processes for recording and reproducing data on recording carriers - Google Patents

Improvements in or relating to processes for recording and reproducing data on recording carriers

Info

Publication number
GB1093436A
GB1093436A GB43547/65A GB4354765A GB1093436A GB 1093436 A GB1093436 A GB 1093436A GB 43547/65 A GB43547/65 A GB 43547/65A GB 4354765 A GB4354765 A GB 4354765A GB 1093436 A GB1093436 A GB 1093436A
Authority
GB
United Kingdom
Prior art keywords
recording
hydrogen
layer
selectively
oct
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB43547/65A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1093436A publication Critical patent/GB1093436A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/03—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

1,093,436. Electron beam irradiation apparatus. A. E. DE RUDNAY. Oct. 14, 1965 [Oct. 15, 1964], No. 43547/65. Heading H1D. [Also in Division G5] A record consists of a solid body or a thin layer of an inorganic material which is selectively reacted with a suitable gas to produce a surface able to modulate an impinging optical or particle reading beam. In a first example, a metal layer of the platinum group, preferably palladium is bombarded by electrons, positive ions or irradiated by infra-red radiation in an atmosphere of hydrogen the beam selectively heating the layer locally to a temperature at which the hydrogen is adsorbed. The recording beam, or some other beam, used at a lower intensity is used to read the record optically. Erasure is achieved by so adjusting the beam intensity that the hydrogen is expelled and positively removed by gettering means. In a second example, the layer is presaturated with hydrogen and recording is made by selective de-hydrogenation with the recording beam. In other examples, superoxides such as TiO 2 , MnO 2 are reduced to lower oxides by heating, or silver or copper layers may be selectively oxidized by bombardment with oxygen ions.
GB43547/65A 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers Expired GB1093436A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER0039014 1964-10-15
DER0039013 1964-10-15

Publications (1)

Publication Number Publication Date
GB1093436A true GB1093436A (en) 1967-12-06

Family

ID=25991829

Family Applications (2)

Application Number Title Priority Date Filing Date
GB43548/65A Expired GB1093437A (en) 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers
GB43547/65A Expired GB1093436A (en) 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB43548/65A Expired GB1093437A (en) 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers

Country Status (3)

Country Link
DE (2) DE1449851A1 (en)
FR (2) FR1450132A (en)
GB (2) GB1093437A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258460A1 (en) * 1986-02-07 1988-03-09 Institut Problem Modelirovania V Energetike Akademii Nauk Ukrainskoi Ssr Method and optical memorization device for recording and erasing of information on an optical carrier
BE1000802A4 (en) * 1987-08-06 1989-04-11 Akad Nauk Sssr Optical disc data recording technique - by use of laser to induce formation of deposit on photosensitive recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258460A1 (en) * 1986-02-07 1988-03-09 Institut Problem Modelirovania V Energetike Akademii Nauk Ukrainskoi Ssr Method and optical memorization device for recording and erasing of information on an optical carrier
EP0258460A4 (en) * 1986-02-07 1988-06-13 Akad Nauk Sssr Method and optical memorization device for recording and erasing of information on an optical carrier.
BE1000802A4 (en) * 1987-08-06 1989-04-11 Akad Nauk Sssr Optical disc data recording technique - by use of laser to induce formation of deposit on photosensitive recording medium

Also Published As

Publication number Publication date
DE1449852A1 (en) 1970-08-06
GB1093437A (en) 1967-12-06
FR1450132A (en) 1966-05-06
FR1450131A (en) 1966-05-06
DE1449851A1 (en) 1970-07-23

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