AU564445B2 - Mastering machine - Google Patents

Mastering machine

Info

Publication number
AU564445B2
AU564445B2 AU51067/85A AU5106785A AU564445B2 AU 564445 B2 AU564445 B2 AU 564445B2 AU 51067/85 A AU51067/85 A AU 51067/85A AU 5106785 A AU5106785 A AU 5106785A AU 564445 B2 AU564445 B2 AU 564445B2
Authority
AU
Australia
Prior art keywords
mastering machine
mastering
machine
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
AU51067/85A
Other versions
AU5106785A (en
Inventor
John S. Winslow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discovision Associates
Original Assignee
Discovision Associates
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
Priority claimed from AU51236/79A external-priority patent/AU532569B2/en
Application filed by Discovision Associates filed Critical Discovision Associates
Priority to AU51067/85A priority Critical patent/AU564445B2/en
Publication of AU5106785A publication Critical patent/AU5106785A/en
Application granted granted Critical
Publication of AU564445B2 publication Critical patent/AU564445B2/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

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
    • G11B7/12—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
    • G11B7/128—Modulators
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • 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
    • G11B7/0045—Recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
AU51067/85A 1979-09-26 1985-12-10 Mastering machine Expired AU564445B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU51067/85A AU564445B2 (en) 1979-09-26 1985-12-10 Mastering machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU51236/79A AU532569B2 (en) 1979-09-26 1979-09-26 Mastering machine
AU532569 1979-09-26
AU51067/85A AU564445B2 (en) 1979-09-26 1985-12-10 Mastering machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU17939/83A Division AU555000B2 (en) 1979-09-26 1983-08-12 Mastering machine

Publications (2)

Publication Number Publication Date
AU5106785A AU5106785A (en) 1986-04-17
AU564445B2 true AU564445B2 (en) 1987-08-13

Family

ID=25629159

Family Applications (1)

Application Number Title Priority Date Filing Date
AU51067/85A Expired AU564445B2 (en) 1979-09-26 1985-12-10 Mastering machine

Country Status (1)

Country Link
AU (1) AU564445B2 (en)

Also Published As

Publication number Publication date
AU5106785A (en) 1986-04-17

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired