IT7968787A0 - Supporto di registrazione con struttura d informazione atta a riflettere le radiazioni e leggibile otticamente particolarmente per segnali televisivi - Google Patents

Supporto di registrazione con struttura d informazione atta a riflettere le radiazioni e leggibile otticamente particolarmente per segnali televisivi

Info

Publication number
IT7968787A0
IT7968787A0 IT7968787A IT6878779A IT7968787A0 IT 7968787 A0 IT7968787 A0 IT 7968787A0 IT 7968787 A IT7968787 A IT 7968787A IT 6878779 A IT6878779 A IT 6878779A IT 7968787 A0 IT7968787 A0 IT 7968787A0
Authority
IT
Italy
Prior art keywords
recording media
structure suitable
television signals
information structure
optically readable
Prior art date
Application number
IT7968787A
Other languages
English (en)
Other versions
IT1203307B (it
Inventor
Dil Jan Gerard
Jacobs Bernardus Anto Johannus
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 IT7968787A0 publication Critical patent/IT7968787A0/it
Application granted granted Critical
Publication of IT1203307B publication Critical patent/IT1203307B/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
    • G11B7/007—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
    • 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
    • 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
    • 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
    • G11B7/24076—Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Holo Graphy (AREA)
IT68787/79A 1978-09-11 1979-09-07 Supporto di registrazione con struttura d informazione atta a riflettere le radiazioni e leggibile otticamente particolarmente per segnali televisivi IT1203307B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7809227A NL7809227A (nl) 1978-09-11 1978-09-11 Registratiedrager met een optisch uitleesbare, stra- lingsreflekterende informatiestruktuur.

Publications (2)

Publication Number Publication Date
IT7968787A0 true IT7968787A0 (it) 1979-09-07
IT1203307B IT1203307B (it) 1989-02-15

Family

ID=19831518

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68787/79A IT1203307B (it) 1978-09-11 1979-09-07 Supporto di registrazione con struttura d informazione atta a riflettere le radiazioni e leggibile otticamente particolarmente per segnali televisivi

Country Status (20)

Country Link
US (1) US4230915A (it)
JP (1) JPS5542393A (it)
AR (1) AR220770A1 (it)
AT (1) AT365357B (it)
AU (1) AU526148B2 (it)
BE (1) BE878701A (it)
BR (1) BR7905763A (it)
CA (1) CA1134035A (it)
CH (1) CH651693A5 (it)
DE (1) DE2935789C2 (it)
DK (1) DK375779A (it)
ES (1) ES483998A1 (it)
FR (1) FR2435781B1 (it)
GB (1) GB2031214B (it)
IT (1) IT1203307B (it)
NL (1) NL7809227A (it)
NO (1) NO792922L (it)
NZ (1) NZ191504A (it)
SE (1) SE443888B (it)
ZA (1) ZA794396B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7810462A (nl) * 1978-10-19 1980-04-22 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare stralingsreflekterende informatiestruktuur
CA1165871A (en) * 1978-11-08 1984-04-17 Kornelis Bulthuis Optically inscribable record carrier
NL8100098A (nl) * 1981-01-12 1982-08-02 Philips Nv Registratiedrager met optisch uitleesbare informatiestruktuur.
US4359750A (en) * 1981-04-30 1982-11-16 Eastman Kodak Company Optical disc structure
JPS58221596A (ja) * 1982-06-17 1983-12-23 Matsushita Electric Ind Co Ltd スピ−カ用振動板
EP0100995A3 (en) * 1982-08-10 1985-10-16 Kabushiki Kaisha Toshiba Optical disk
JPS60131652A (ja) * 1983-12-20 1985-07-13 Matsushita Electric Ind Co Ltd 信号記録スタンパ−
NL8500152A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van vooraf aangebrachte en optisch detekteerbare servospoorgedeelten en sektoradressen.
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.
JPS6350933A (ja) * 1986-08-20 1988-03-03 Matsushita Electric Ind Co Ltd 平板状情報記録担体
JPS63107589A (ja) * 1986-10-23 1988-05-12 Nec Corp 光記録媒体
EP0302119B1 (en) * 1987-02-12 1996-10-30 Dai Nippon Insatsu Kabushiki Kaisha Method for recording and reproducing data for an optical card
US5234633A (en) * 1987-12-28 1993-08-10 Canon Kabushiki Kaisha Cast molding die and process for producing information recording medium using the same
JPH01189039A (ja) * 1988-01-22 1989-07-28 Mitsubishi Electric Corp 光学式情報記録担体
JPH0253237A (ja) * 1988-08-16 1990-02-22 Ricoh Co Ltd 光学式情報記録媒体
DE68921453T2 (de) * 1988-12-28 1995-07-13 Canon Kk Informationsaufzeichnungsträger.
JPH03142717A (ja) * 1989-10-27 1991-06-18 Ricoh Co Ltd 光ディスク
DE4201211C2 (de) * 1992-01-18 2001-04-26 Leybold Ag Beschichtungsanlage
US6352612B1 (en) * 1998-05-19 2002-03-05 Steag Hamatech, Inc. System for forming bonded storage disks with low power light assembly
US6570840B1 (en) * 2000-04-26 2003-05-27 Optical Disc Corporation Figure of merit in optical recording structures

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041530A (en) * 1971-03-04 1977-08-09 U.S. Philips Corporation Video disc with phase structure
NL7300724A (it) * 1973-01-18 1973-11-26
NL165316C (nl) * 1973-10-01 1981-03-16 Mca Disco Vision Werkwijze voor de vervaardiging van een schrijfvormige video-afdrukmatrijs uitgaande van een moederschijf.
US3931459A (en) * 1974-02-04 1976-01-06 Zenith Radio Corporation Video disc
US4118734A (en) * 1974-02-14 1978-10-03 U.S. Philips Corporation Optical videodisc with variable width tracks
DE2410740B2 (de) * 1974-03-06 1977-03-24 Polygram Gmbh, 2000 Hamburg Verfahren zur herstellung eines aus thermoplastischem kunststoff bestehenden informationsspeichers hoher speicherdichte
FR2288370A1 (fr) * 1974-10-18 1976-05-14 Thomson Brandt Perfectionnements aux supports d'information a lecture optique
DE2524473A1 (de) * 1975-06-03 1976-12-23 Ted Bildplatten Verfahren und einrichtung zum aufzeichnen von signalen
FR2325987A1 (fr) * 1975-09-29 1977-04-22 Thomson Brandt Dispositif de lecture optique d'un enregistrement

Also Published As

Publication number Publication date
GB2031214A (en) 1980-04-16
NO792922L (no) 1980-03-12
SE7907437L (sv) 1980-03-12
DE2935789C2 (de) 1986-03-27
GB2031214B (en) 1983-03-02
ZA794396B (en) 1981-04-29
CA1134035A (en) 1982-10-19
NZ191504A (en) 1982-06-29
FR2435781B1 (fr) 1985-07-12
BE878701A (fr) 1980-03-10
DK375779A (da) 1980-03-12
US4230915A (en) 1980-10-28
SE443888B (sv) 1986-03-10
AR220770A1 (es) 1980-11-28
CH651693A5 (de) 1985-09-30
JPS6319939B2 (it) 1988-04-25
FR2435781A1 (fr) 1980-04-04
ES483998A1 (es) 1980-04-01
AU526148B2 (en) 1982-12-16
BR7905763A (pt) 1980-05-20
AU5067779A (en) 1980-03-20
IT1203307B (it) 1989-02-15
JPS5542393A (en) 1980-03-25
ATA598179A (de) 1981-05-15
AT365357B (de) 1982-01-11
NL7809227A (nl) 1980-03-13
DE2935789A1 (de) 1980-03-20

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970930