NL7401858A - Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur. - Google Patents

Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur.

Info

Publication number
NL7401858A
NL7401858A NL7401858A NL7401858A NL7401858A NL 7401858 A NL7401858 A NL 7401858A NL 7401858 A NL7401858 A NL 7401858A NL 7401858 A NL7401858 A NL 7401858A NL 7401858 A NL7401858 A NL 7401858A
Authority
NL
Netherlands
Prior art keywords
indicated
information
optically readable
registration carrier
readable structure
Prior art date
Application number
NL7401858A
Other languages
English (en)
Dutch (nl)
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
Priority to NL7401858A priority Critical patent/NL7401858A/xx
Priority to ZA00750131A priority patent/ZA75131B/xx
Priority to DE19752503975 priority patent/DE2503975A1/de
Priority to CA219,532A priority patent/CA1047644A/en
Priority to GB5302/75A priority patent/GB1501141A/en
Priority to DK45475AA priority patent/DK138567B/da
Priority to AT98275A priority patent/AT338889B/de
Priority to CH156575A priority patent/CH592350A5/xx
Priority to BE153229A priority patent/BE825379A/xx
Priority to IT20089/75A priority patent/IT1031581B/it
Priority to ES434588A priority patent/ES434588A1/es
Priority to AU78025/75A priority patent/AU497709B2/en
Priority to NO750416A priority patent/NO750416L/no
Priority to SE7501407A priority patent/SE410808B/xx
Priority to FR7504326A priority patent/FR2260911B1/fr
Priority to JP50017757A priority patent/JPS50119517A/ja
Publication of NL7401858A publication Critical patent/NL7401858A/xx
Priority to US05/663,268 priority patent/US4084185A/en
Priority to ES452770A priority patent/ES452770A1/es

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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
    • 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
NL7401858A 1974-02-12 1974-02-12 Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur. NL7401858A (nl)

Priority Applications (18)

Application Number Priority Date Filing Date Title
NL7401858A NL7401858A (nl) 1974-02-12 1974-02-12 Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur.
ZA00750131A ZA75131B (en) 1974-02-12 1975-01-07 Record carrier on which information is stored in an optically readable structure
DE19752503975 DE2503975A1 (de) 1974-02-12 1975-01-31 Aufzeichnungstraeger, auf dem information in einer optisch auslesbaren struktur angebracht ist
CA219,532A CA1047644A (en) 1974-02-12 1975-02-06 Record carrier on which information is stored in an optically readable structure
GB5302/75A GB1501141A (en) 1974-02-12 1975-02-07 Optically readable record carrier and apparatus for reading same
DK45475AA DK138567B (da) 1974-02-12 1975-02-07 Registreringsbærer, hvorpå information er registreret i en optisk aflæselig struktur, samt apparat til aflæsning af en sådan registreringsbærer.
IT20089/75A IT1031581B (it) 1974-02-12 1975-02-10 Dispositivo di registrazione sulquale vengono immagazzinate informazioni secondo una struttura leggibile per via ottica ed apparecchiatura per effettuarne la lettura
CH156575A CH592350A5 (no) 1974-02-12 1975-02-10
BE153229A BE825379A (fr) 1974-02-12 1975-02-10 Porte-enregistrement sur lequel de l'information est enregistree dans une structure lisible par voie optique
AT98275A AT338889B (de) 1974-02-12 1975-02-10 Aufzeichnungstrager, auf dem informationen in einer optisch auslesbaren struktur angebracht sind, und vorrichtung zum auslesen dieser information
ES434588A ES434588A1 (es) 1974-02-12 1975-02-10 Un dispositivo portador de registro perfeccionado, en el queesta almacenada informacion, por ejemplo, informacion de vi-deo yno de audio.
AU78025/75A AU497709B2 (en) 1974-02-12 1975-02-10 Record carrier
NO750416A NO750416L (no) 1974-02-12 1975-02-10
SE7501407A SE410808B (sv) 1974-02-12 1975-02-10 Uppteckningsberare
FR7504326A FR2260911B1 (no) 1974-02-12 1975-02-12
JP50017757A JPS50119517A (no) 1974-02-12 1975-02-12
US05/663,268 US4084185A (en) 1974-02-12 1976-03-03 Record carrier on which information is stored in an optically readable structure
ES452770A ES452770A1 (es) 1974-02-12 1976-10-27 Un aparato para leer un portador de registro en el que esta almacenada informacion, por ejemplo, informacion de vidrio yno de audio.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7401858A NL7401858A (nl) 1974-02-12 1974-02-12 Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur.

Publications (1)

Publication Number Publication Date
NL7401858A true NL7401858A (nl) 1975-08-14

Family

ID=19820729

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7401858A NL7401858A (nl) 1974-02-12 1974-02-12 Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur.

Country Status (16)

Country Link
JP (1) JPS50119517A (no)
AT (1) AT338889B (no)
AU (1) AU497709B2 (no)
BE (1) BE825379A (no)
CA (1) CA1047644A (no)
CH (1) CH592350A5 (no)
DE (1) DE2503975A1 (no)
DK (1) DK138567B (no)
ES (2) ES434588A1 (no)
FR (1) FR2260911B1 (no)
GB (1) GB1501141A (no)
IT (1) IT1031581B (no)
NL (1) NL7401858A (no)
NO (1) NO750416L (no)
SE (1) SE410808B (no)
ZA (1) ZA75131B (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7510035A (nl) * 1975-08-26 1977-03-01 Philips Nv Registratiedrager met een optisch uitleesbare, langs sporen gerangschikte, informatiestruktuur en inrichting voor het uitlezen daarvan.
JPS5363002A (en) * 1976-11-18 1978-06-06 Sony Corp Signal recording system and disk type medium for recording signal
US4161752A (en) * 1977-06-28 1979-07-17 International Business Machines Corporation High density video disk having two pit depths
NL7803517A (nl) * 1978-04-03 1979-10-05 Philips Nv Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen.
JPS57103132A (en) * 1980-12-16 1982-06-26 Matsushita Electric Ind Co Ltd Recording information carrier and its recorder and reproducer
NL8100098A (nl) * 1981-01-12 1982-08-02 Philips Nv Registratiedrager met optisch uitleesbare informatiestruktuur.
GB8309447D0 (en) * 1983-04-07 1983-05-11 Combined Tech Corp Plc Optical data storage
US4623784A (en) * 1984-12-20 1986-11-18 Drexler Technology Corporation Laser recording apparatus with off-center lens and error detection
DE68923833T2 (de) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp Optischer Kopf mit Kippkorrekturservomechanismus.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314052A (en) * 1963-04-12 1967-04-11 Ibm Light modulation system
FR2014594B1 (no) * 1968-07-15 1974-02-22 Ibm
JPS5117405B2 (no) * 1972-05-15 1976-06-02

Also Published As

Publication number Publication date
CA1047644A (en) 1979-01-30
JPS50119517A (no) 1975-09-19
DK138567C (no) 1979-03-05
GB1501141A (en) 1978-02-15
AT338889B (de) 1977-09-26
SE7501407L (no) 1975-08-13
SE410808B (sv) 1979-11-05
ZA75131B (en) 1976-08-25
BE825379A (fr) 1975-08-11
ES452770A1 (es) 1977-10-01
IT1031581B (it) 1979-05-10
DE2503975A1 (de) 1975-08-14
FR2260911B1 (no) 1982-03-05
AU7802575A (en) 1976-08-12
CH592350A5 (no) 1977-10-31
NO750416L (no) 1975-08-13
FR2260911A1 (no) 1975-09-05
ATA98275A (de) 1977-01-15
DK138567B (da) 1978-09-25
ES434588A1 (es) 1977-03-16
AU497709B2 (en) 1979-01-04
DK45475A (no) 1975-10-06

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Legal Events

Date Code Title Description
BC A request for examination has been filed
BV The patent application has lapsed