NO144551C - RECORDING CARRIER WITH INFORMATION RECORDED AS AN OPTICAL STRUCTURE AND APPARATUS FOR RECORDING INFORMATION ON SUCH RECORDER - Google Patents

RECORDING CARRIER WITH INFORMATION RECORDED AS AN OPTICAL STRUCTURE AND APPARATUS FOR RECORDING INFORMATION ON SUCH RECORDER

Info

Publication number
NO144551C
NO144551C NO742366A NO742366A NO144551C NO 144551 C NO144551 C NO 144551C NO 742366 A NO742366 A NO 742366A NO 742366 A NO742366 A NO 742366A NO 144551 C NO144551 C NO 144551C
Authority
NO
Norway
Prior art keywords
recording
information
recorder
optical structure
information recorded
Prior art date
Application number
NO742366A
Other languages
Norwegian (no)
Other versions
NO742366L (en
NO144551B (en
Inventor
Gijsbertus Bouwhuis
Josephus Johannes Maria Braat
Bernardus Antonius Joha Jacobs
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 NO742366L publication Critical patent/NO742366L/no
Publication of NO144551B publication Critical patent/NO144551B/en
Publication of NO144551C publication Critical patent/NO144551C/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085Pits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125Optical 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
NO742366A 1973-07-02 1974-06-28 RECORDING CARRIER WITH INFORMATION RECORDED AS AN OPTICAL STRUCTURE AND APPARATUS FOR RECORDING INFORMATION ON SUCH RECORDER NO144551C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7309174,A NL172111C (en) 1973-07-02 1973-07-02 REGISTRATION CARRIER ON WHICH INFORMATION IS STORED IN AN OPTICAL STRUCTURE AND DEVICE FOR REGISTERING SUCH REGISTRATION CARRIER.

Publications (3)

Publication Number Publication Date
NO742366L NO742366L (en) 1975-01-27
NO144551B NO144551B (en) 1981-06-09
NO144551C true NO144551C (en) 1981-09-16

Family

ID=19819188

Family Applications (1)

Application Number Title Priority Date Filing Date
NO742366A NO144551C (en) 1973-07-02 1974-06-28 RECORDING CARRIER WITH INFORMATION RECORDED AS AN OPTICAL STRUCTURE AND APPARATUS FOR RECORDING INFORMATION ON SUCH RECORDER

Country Status (16)

Country Link
JP (1) JPS5623221B2 (en)
AT (1) AT346096B (en)
BE (1) BE817188A (en)
BR (1) BR7405448D0 (en)
CA (1) CA1039402A (en)
CH (1) CH592349A5 (en)
DE (1) DE2429850C2 (en)
DK (1) DK137735B (en)
ES (1) ES427804A1 (en)
FR (1) FR2236240B1 (en)
GB (1) GB1479294A (en)
IT (1) IT1014438B (en)
NL (1) NL172111C (en)
NO (1) NO144551C (en)
SE (1) SE402368B (en)
ZA (1) ZA744185B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506495A (en) * 1975-06-02 1976-12-06 Philips Nv DEVICE FOR READING A REGISTRATION MEDIA.
JPS5242034U (en) * 1975-09-18 1977-03-25
NL7612070A (en) * 1975-10-31 1977-05-03 Hitachi Ltd DEVICE FOR READING INFORMATION.
US4097895A (en) * 1976-03-19 1978-06-27 Rca Corporation Multilayer optical record
JPS5363002A (en) * 1976-11-18 1978-06-06 Sony Corp Signal recording system and disk type medium for recording signal
JPS5369006A (en) * 1976-11-30 1978-06-20 Sony Corp Reproducer of disc form signal recording media
JPS54141604A (en) * 1978-04-27 1979-11-05 Nippon Columbia Optical disk and method of fabricating original disk of optical disk
CH636467A5 (en) * 1978-10-17 1983-05-31 Mca Disco Vision Method and device for recording a modulated electrical signal
NL7902363A (en) * 1979-03-27 1980-09-30 Philips Nv RECORD CARRIER WITH AN OPTICALLY READABLE INFORMASTRUCTURE.
JPH0335455Y2 (en) * 1986-01-10 1991-07-26

Also Published As

Publication number Publication date
JPS5034508A (en) 1975-04-02
IT1014438B (en) 1977-04-20
ZA744185B (en) 1976-02-25
DK137735C (en) 1978-10-02
FR2236240A1 (en) 1975-01-31
NL172111B (en) 1983-02-01
AU7074274A (en) 1976-01-08
CA1039402A (en) 1978-09-26
DK137735B (en) 1978-04-24
DE2429850A1 (en) 1975-01-30
NO742366L (en) 1975-01-27
AT346096B (en) 1978-10-25
DE2429850C2 (en) 1982-11-18
NL7309174A (en) 1975-01-06
FR2236240B1 (en) 1979-08-24
SE402368B (en) 1978-06-26
SE7408535L (en) 1975-01-03
GB1479294A (en) 1977-07-13
NO144551B (en) 1981-06-09
DK351274A (en) 1975-02-24
NL172111C (en) 1983-07-01
BR7405448D0 (en) 1975-04-15
ATA538774A (en) 1978-02-15
JPS5623221B2 (en) 1981-05-29
ES427804A1 (en) 1976-08-01
CH592349A5 (en) 1977-10-31
BE817188A (en) 1975-01-02

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