IT8067451A0 - Sopporto di registrazione di informazioni del tipo a lettura ottica - Google Patents

Sopporto di registrazione di informazioni del tipo a lettura ottica

Info

Publication number
IT8067451A0
IT8067451A0 IT8067451A IT6745180A IT8067451A0 IT 8067451 A0 IT8067451 A0 IT 8067451A0 IT 8067451 A IT8067451 A IT 8067451A IT 6745180 A IT6745180 A IT 6745180A IT 8067451 A0 IT8067451 A0 IT 8067451A0
Authority
IT
Italy
Prior art keywords
type information
optical reading
reading type
recording support
recording
Prior art date
Application number
IT8067451A
Other languages
English (en)
Other versions
IT1128073B (it
Inventor
Josephus Johannes Maria Braat
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IT8067451A0 publication Critical patent/IT8067451A0/it
Application granted granted Critical
Publication of IT1128073B publication Critical patent/IT1128073B/it

Links

Classifications

    • 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
    • G11B7/24085—Pits
    • 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
IT67451/80A 1979-03-27 1980-03-24 Sopporto di registrazione di informauione del tipo a lettura ottica IT1128073B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7902363A NL7902363A (nl) 1979-03-27 1979-03-27 Registratiedrager met een optisch uitleesbare informa- tiestruktuur.

Publications (2)

Publication Number Publication Date
IT8067451A0 true IT8067451A0 (it) 1980-03-24
IT1128073B IT1128073B (it) 1986-05-28

Family

ID=19832872

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67451/80A IT1128073B (it) 1979-03-27 1980-03-24 Sopporto di registrazione di informauione del tipo a lettura ottica

Country Status (13)

Country Link
US (1) US4499574A (it)
JP (1) JPS55132538A (it)
AT (1) AT368311B (it)
AU (1) AU535939B2 (it)
BE (1) BE882425A (it)
CA (1) CA1164558A (it)
DE (1) DE3011176A1 (it)
ES (1) ES489885A0 (it)
FR (1) FR2452759A1 (it)
GB (1) GB2045997B (it)
IT (1) IT1128073B (it)
NL (1) NL7902363A (it)
SE (1) SE8002228L (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119363A (en) * 1980-12-17 1992-06-02 Matsushita Electric Industrial Company, Ltd. Optical disk having an index mark
EP0081138B1 (en) * 1981-12-01 1987-10-21 Matsushita Electric Industrial Co., Ltd. Optical recording and reproducing disc
JPS5919250A (ja) * 1982-07-21 1984-01-31 Hitachi Ltd 情報の記録再生装置
NL8500153A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur.
NL8500152A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van vooraf aangebrachte en optisch detekteerbare servospoorgedeelten en sektoradressen.
SE447313B (sv) * 1985-03-19 1986-11-03 Ericsson Telefon Ab L M Databerare i form av ett foretredesvis rektangulert kort med ett cirkulert omrade for tet optisk registrering av data
JPS6410463A (en) * 1987-07-01 1989-01-13 Sony Corp Magnetic disk
JPS648514A (en) * 1987-07-01 1989-01-12 Canon Kk Method and device for reproducing optical information and optical information recording medium
JPS6474411A (en) * 1987-09-16 1989-03-20 Yamaha Corp Position detector
JPH0253237A (ja) * 1988-08-16 1990-02-22 Ricoh Co Ltd 光学式情報記録媒体
US5229901A (en) * 1991-06-28 1993-07-20 Digital Equipment Corporation Side-by-side read/write heads with rotary positioner
US5452285A (en) * 1993-09-30 1995-09-19 Polaroid Corporation Uniformly distributed servo data for optical information storage medium
JP2003248168A (ja) * 2001-12-21 2003-09-05 Konica Corp 光ピックアップ装置、および光学素子

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7212015A (it) * 1972-09-04 1974-03-06
NL172111C (nl) * 1973-07-02 1983-07-01 Philips Nv Registratiedrager waarop informatie is vastgelegd in een optische struktuur en inrichting voor het inschrijven van een dergelijke registratiedrager.
US4118734A (en) * 1974-02-14 1978-10-03 U.S. Philips Corporation Optical videodisc with variable width tracks
FR2330108A1 (fr) * 1975-10-31 1977-05-27 Hitachi Ltd Appareil de restitution d'informations
JPS5369006A (en) * 1976-11-30 1978-06-20 Sony Corp Reproducer of disc form signal recording media
US4157460A (en) * 1977-09-22 1979-06-05 Cbs Inc. Apparatus for cutting audio disks
NL187413C (nl) * 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.

Also Published As

Publication number Publication date
AU535939B2 (en) 1984-04-12
JPS55132538A (en) 1980-10-15
US4499574A (en) 1985-02-12
ATA159880A (de) 1982-01-15
FR2452759A1 (fr) 1980-10-24
BE882425A (fr) 1980-09-25
FR2452759B1 (it) 1983-03-25
CA1164558A (en) 1984-03-27
GB2045997A (en) 1980-11-05
AT368311B (de) 1982-10-11
ES8100519A1 (es) 1980-11-01
SE8002228L (sv) 1980-09-28
NL7902363A (nl) 1980-09-30
DE3011176C2 (it) 1989-06-15
JPH0356037B2 (it) 1991-08-27
IT1128073B (it) 1986-05-28
ES489885A0 (es) 1980-11-01
DE3011176A1 (de) 1980-10-09
AU5671980A (en) 1980-10-02
GB2045997B (en) 1982-12-01

Similar Documents

Publication Publication Date Title
IT1022862B (it) Struttura portante di registrazione a lettura ottica per la memoria di informazioni
DE3583039D1 (de) Schreib/lesekopf fuer optische platten.
NL7804653A (nl) Optisch registratiemedium.
GB2005457B (en) Optically written information recording element
IT7969155A0 (it) Sopporto di registrazione ad incisione ottica
DE3882872D1 (de) Optische lesekopf.
DE69033550D1 (de) Medium für optische Datenspeicherung
BE862230A (nl) Optische leeskop
DE3580250D1 (de) Aufzeichnungsgeraet fuer optische platten.
DE68923777T2 (de) Medium für optische Aufzeichnung.
DE3874294T2 (de) Medium fuer optische datenaufzeichnung.
KR850000975U (ko) 광학식 기록정보 판독장치
FR2418514B1 (fr) Support d'enregistrement optique de l'information
IT8019492A0 (it) Mezzo per registrazione ottica.
IT8067451A0 (it) Sopporto di registrazione di informazioni del tipo a lettura ottica
DE3781926D1 (de) Medium fuer optische informationsaufzeichnung.
IT1099139B (it) Mezzo di registrazione,di tipo ottico
DE3787879D1 (de) Kassette für optische Datenplatten.
DE68925389D1 (de) Medium für optische Aufzeichnung
IT7968838A0 (it) Supporto di registrazione ottica dispositivo per la lettura di un avente una struttura d informazione atta a riflettere radiazioni
NL7702970A (nl) Optisch registratiemedium.
AT349077B (de) Fokkusierungs-system fuer optische aufzeichnungstraeger
IT7821384A0 (it) Apparecchiatura per leggere un supporto di registrazione riflettente radiazioni ottiche.
PL205453A1 (pl) Urzadzenie do odczytu nosnika zapisu odbijajacego promieniowanie
DE3784435D1 (de) Medium fuer optische informationsaufzeichnung.