NL7102863A - - Google Patents

Info

Publication number
NL7102863A
NL7102863A NL7102863A NL7102863A NL7102863A NL 7102863 A NL7102863 A NL 7102863A NL 7102863 A NL7102863 A NL 7102863A NL 7102863 A NL7102863 A NL 7102863A NL 7102863 A NL7102863 A NL 7102863A
Authority
NL
Netherlands
Application number
NL7102863A
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 NL7102863A priority Critical patent/NL7102863A/xx
Priority to ZA721137A priority patent/ZA721137B/xx
Priority to DE19722208379 priority patent/DE2208379C3/de
Priority to AU39454/72A priority patent/AU470672B2/en
Priority to CH509273A priority patent/CH552920A/xx
Priority to JP2068372A priority patent/JPS544603B1/ja
Priority to IT67654/72A priority patent/IT952884B/it
Priority to GB948772A priority patent/GB1391541A/en
Priority to AT166672A priority patent/AT342122B/de
Priority to NO646/72A priority patent/NO139905C/no
Priority to CH298372A priority patent/CH553522A/xx
Priority to BR1206/72*[A priority patent/BR7201206D0/pt
Priority to BE780146A priority patent/BE780146A/xx
Priority to CA136,033A priority patent/CA1023855A/en
Priority to ES400336A priority patent/ES400336A1/es
Priority to AR240808A priority patent/AR195275A1/es
Priority to FR7207419A priority patent/FR2128576B1/fr
Publication of NL7102863A publication Critical patent/NL7102863A/xx
Priority to AR247284A priority patent/AR203718A1/es
Priority to NO751183A priority patent/NO141672C/no
Priority to US05/618,215 priority patent/US4041530A/en
Priority to US05/801,018 priority patent/US4160269A/en
Priority to CA287,701A priority patent/CA1063241A/en
Priority to JP9746078A priority patent/JPS5452504A/ja

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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
NL7102863A 1971-03-04 1971-03-04 NL7102863A (sv)

Priority Applications (23)

Application Number Priority Date Filing Date Title
NL7102863A NL7102863A (sv) 1971-03-04 1971-03-04
ZA721137A ZA721137B (en) 1971-03-04 1972-02-21 Carrier provided with a spiral structure in which sound and/or image information is stored
DE19722208379 DE2208379C3 (de) 1971-03-04 1972-02-23 Optisch abtastbarer Aufzeichnungsträger und Vorrichtung zum Detektieren der in ihm gespeicherten Information sowie Herstellungsverfahren für den Aufzeichnungsträger N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande)
AU39454/72A AU470672B2 (en) 1971-03-04 1972-02-29 Carrier provided with a spiral structure in which sound and/or image information is stored
BR1206/72*[A BR7201206D0 (pt) 1971-03-04 1972-03-01 Um portador provido de uma estrutura em espiral na qual informacoes de audio e ou de imagem sao armazenadas e aparelho para detectar as informacoes armazenadas no dito portador
JP2068372A JPS544603B1 (sv) 1971-03-04 1972-03-01
IT67654/72A IT952884B (it) 1971-03-04 1972-03-01 Sopporto munito di una struttura a spirale in cui e immagazzinata informazione sonora e o visiva
GB948772A GB1391541A (en) 1971-03-04 1972-03-01 Information carrier of disc form for sound and/or video signals
AT166672A AT342122B (de) 1971-03-04 1972-03-01 Aufzeichnungstrager fur schall- und/oder bildinformation und vorrichtung zum detektieren der im aufzeichnungstrager gespeicherten information
NO646/72A NO139905C (no) 1971-03-04 1972-03-01 Informasjonsbaerer med spiralformet struktur
CH298372A CH553522A (de) 1971-03-04 1972-03-01 Aufzeichungstraeger fuer schall- und/oder bildinformationen.
CH509273A CH552920A (de) 1971-03-04 1972-03-01 Vorrichtung zum ablesen von in einem aufzeichnungstraeger gespeicherten informationen.
CA136,033A CA1023855A (en) 1971-03-04 1972-03-02 Carrier provided with a spiral structure in which sound and/or image information is stored
BE780146A BE780146A (fr) 1971-03-04 1972-03-02 Support d'information a structure en spirale dans laquelle on aemmagasine de l'information sonore et/ou de l'information
ES400336A ES400336A1 (es) 1971-03-04 1972-03-02 Perfeccionamientos introducidos en soportes o portadores deinformacion y en aparatos para detectar y reproducirla in- formacion almacenada en los mismos.
AR240808A AR195275A1 (es) 1971-03-04 1972-03-03 Portador provisto con una estructura espiral en la cual se almacena informacion de sonido y/o de imagen
FR7207419A FR2128576B1 (sv) 1971-03-04 1972-03-03
AR247284A AR203718A1 (es) 1971-03-04 1973-03-28 Aparato para detectar la informacion almacenada en un portador
NO751183A NO141672C (no) 1971-03-04 1975-04-07 Anordning for avlesning av en informasjonsbaerer med spesialformet struktur
US05/618,215 US4041530A (en) 1971-03-04 1975-09-30 Video disc with phase structure
US05/801,018 US4160269A (en) 1971-03-04 1977-05-27 Apparatus for optically reading a phase-modulated optical record carrier
CA287,701A CA1063241A (en) 1971-03-04 1977-09-28 Carrier provided with a spiral structure in which sound and/or image information is stored
JP9746078A JPS5452504A (en) 1971-03-04 1978-08-11 Regenerative apparatus for carrier provided with spiral structure that store sound and*or image information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7102863A NL7102863A (sv) 1971-03-04 1971-03-04

Publications (1)

Publication Number Publication Date
NL7102863A true NL7102863A (sv) 1972-09-06

Family

ID=19812612

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7102863A NL7102863A (sv) 1971-03-04 1971-03-04

Country Status (15)

Country Link
JP (2) JPS544603B1 (sv)
AR (2) AR195275A1 (sv)
AT (1) AT342122B (sv)
AU (1) AU470672B2 (sv)
BE (1) BE780146A (sv)
BR (1) BR7201206D0 (sv)
CA (1) CA1023855A (sv)
CH (2) CH553522A (sv)
ES (1) ES400336A1 (sv)
FR (1) FR2128576B1 (sv)
GB (1) GB1391541A (sv)
IT (1) IT952884B (sv)
NL (1) NL7102863A (sv)
NO (1) NO139905C (sv)
ZA (1) ZA721137B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197495A5 (sv) * 1972-08-25 1974-03-22 Thomson Csf
NL7212015A (sv) * 1972-09-04 1974-03-06
FR2235354A1 (en) * 1973-06-29 1975-01-24 Thomson Csf Photoelectric optical test sensor - measures displacement of a diffraction screen with constant spacing in the test sensor plane
NL7611567A (nl) * 1976-10-20 1978-04-24 Philips Nv Werkwijze voor het maken van copieen van informatiesporen op dragers.
BE871326A (fr) * 1978-10-23 1979-04-17 Mca Disco Vision Procede et dispositif d'enregistrement et de reproduction d'un signal video.

Also Published As

Publication number Publication date
ES400336A1 (es) 1975-06-16
CH553522A (de) 1974-08-30
FR2128576B1 (sv) 1980-03-14
AR203718A1 (es) 1975-10-15
CH552920A (de) 1974-08-15
AR195275A1 (es) 1973-09-28
NO139905C (no) 1979-05-30
DE2208379B2 (de) 1976-10-28
BR7201206D0 (pt) 1973-06-07
AU3945472A (en) 1973-08-30
JPS5452504A (en) 1979-04-25
AU470672B2 (en) 1973-08-30
IT952884B (it) 1973-07-30
NO139905B (no) 1979-02-19
DE2208379A1 (de) 1972-09-14
FR2128576A1 (sv) 1972-10-20
BE780146A (fr) 1972-09-04
ZA721137B (en) 1973-10-31
JPS5732409B2 (sv) 1982-07-10
GB1391541A (en) 1975-04-23
CA1023855A (en) 1978-01-03
JPS544603B1 (sv) 1979-03-08
ATA166672A (de) 1977-07-15
AT342122B (de) 1978-03-10

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Legal Events

Date Code Title Description
BI The patent application has been withdrawn