JPS5410841B2 - - Google Patents

Info

Publication number
JPS5410841B2
JPS5410841B2 JP10731772A JP10731772A JPS5410841B2 JP S5410841 B2 JPS5410841 B2 JP S5410841B2 JP 10731772 A JP10731772 A JP 10731772A JP 10731772 A JP10731772 A JP 10731772A JP S5410841 B2 JPS5410841 B2 JP S5410841B2
Authority
JP
Japan
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
JP10731772A
Other versions
JPS4965724A (ja
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 filed Critical
Priority to JP10731772A priority Critical patent/JPS5410841B2/ja
Priority to NL7314763A priority patent/NL7314763A/xx
Priority to DE2353808A priority patent/DE2353808C3/de
Publication of JPS4965724A publication Critical patent/JPS4965724A/ja
Publication of JPS5410841B2 publication Critical patent/JPS5410841B2/ja
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
    • 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
    • G11B7/0045—Recording
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP10731772A 1972-10-26 1972-10-26 Expired JPS5410841B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10731772A JPS5410841B2 (ja) 1972-10-26 1972-10-26
NL7314763A NL7314763A (ja) 1972-10-26 1973-10-26
DE2353808A DE2353808C3 (de) 1972-10-26 1973-10-26 Vorrichtung zur Aufzeichnung von Informationssignalen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10731772A JPS5410841B2 (ja) 1972-10-26 1972-10-26

Publications (2)

Publication Number Publication Date
JPS4965724A JPS4965724A (ja) 1974-06-26
JPS5410841B2 true JPS5410841B2 (ja) 1979-05-10

Family

ID=14455994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10731772A Expired JPS5410841B2 (ja) 1972-10-26 1972-10-26

Country Status (3)

Country Link
JP (1) JPS5410841B2 (ja)
DE (1) DE2353808C3 (ja)
NL (1) NL7314763A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61737Y2 (ja) * 1980-01-21 1986-01-11
JPH0110998Y2 (ja) * 1981-09-19 1989-03-30
JPH0236346Y2 (ja) * 1981-09-19 1990-10-03

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725384Y2 (ja) * 1974-08-27 1982-06-02
JPS5455810U (ja) * 1978-09-12 1979-04-18
JPS5687239A (en) * 1979-12-18 1981-07-15 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS57200912A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Information recording system
JPS59227039A (ja) * 1983-06-07 1984-12-20 Matsushita Electric Ind Co Ltd 記録再生用デイスク原盤作成装置
JPS605434A (ja) * 1984-05-11 1985-01-12 Canon Inc 信号再生装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287563A (en) * 1962-11-07 1966-11-22 Minnesota Mining & Mfg Spatial coherent reproducing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277344B (de) * 1964-07-06 1968-09-12 Siemens Ag Verfahren zur Informationsspeicherung und Gedaechtnisspeicher zur Durchfuehrung des Verfahrens
US3562422A (en) * 1968-04-12 1971-02-09 Columbia Broadcasting Systems Recording apparatus utilizing plane of polarization modulator
DE1903822C3 (de) * 1969-01-23 1973-12-13 Ted Bildplatten Ag Aeg-Telefunkenteldec, Zug (Schweiz) Vorrichtung zur Wiedergabe auf einem Trager gespeicherter Signale, Aufzeichnungs verfahren für einen Trager sowie Trager zur Wiedergabe mit der Vorrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287563A (en) * 1962-11-07 1966-11-22 Minnesota Mining & Mfg Spatial coherent reproducing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61737Y2 (ja) * 1980-01-21 1986-01-11
JPH0110998Y2 (ja) * 1981-09-19 1989-03-30
JPH0236346Y2 (ja) * 1981-09-19 1990-10-03

Also Published As

Publication number Publication date
JPS4965724A (ja) 1974-06-26
DE2353808B2 (de) 1981-06-25
NL7314763A (ja) 1974-05-01
DE2353808A1 (de) 1974-05-16
DE2353808C3 (de) 1982-03-25

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