AU532569B2 - Mastering machine - Google Patents

Mastering machine

Info

Publication number
AU532569B2
AU532569B2 AU51236/79A AU5123679A AU532569B2 AU 532569 B2 AU532569 B2 AU 532569B2 AU 51236/79 A AU51236/79 A AU 51236/79A AU 5123679 A AU5123679 A AU 5123679A AU 532569 B2 AU532569 B2 AU 532569B2
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
AU51236/79A
Other versions
AU5123679A (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 to CA000336287A priority Critical patent/CA1153468A/en
Application filed by Discovision Associates filed Critical Discovision Associates
Priority to AU51236/79A priority patent/AU532569B2/en
Publication of AU5123679A publication Critical patent/AU5123679A/en
Priority to CA000404059A priority patent/CA1147057A/en
Priority to AU17940/83A priority patent/AU545332B2/en
Priority to AU17939/83A priority patent/AU555000B2/en
Application granted granted Critical
Publication of AU532569B2 publication Critical patent/AU532569B2/en
Priority to AU51067/85A priority 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
    • 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

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)
  • Optical Recording Or Reproduction (AREA)
AU51236/79A 1979-09-26 1979-09-26 Mastering machine Expired AU532569B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA000336287A CA1153468A (en) 1979-09-26 1979-09-25 Mastering machine
AU51236/79A AU532569B2 (en) 1979-09-26 1979-09-26 Mastering machine
CA000404059A CA1147057A (en) 1979-09-26 1982-05-28 Mastering machine
AU17940/83A AU545332B2 (en) 1979-09-26 1983-08-12 Mastering machine
AU17939/83A AU555000B2 (en) 1979-09-26 1983-08-12 Mastering machine
AU51067/85A AU564445B2 (en) 1979-09-26 1985-12-10 Mastering machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU51236/79A AU532569B2 (en) 1979-09-26 1979-09-26 Mastering machine

Related Child Applications (2)

Application Number Title Priority Date Filing Date
AU17940/83A Division AU545332B2 (en) 1979-09-26 1983-08-12 Mastering machine
AU17939/83A Division AU555000B2 (en) 1979-09-26 1983-08-12 Mastering machine

Publications (2)

Publication Number Publication Date
AU5123679A AU5123679A (en) 1981-04-02
AU532569B2 true AU532569B2 (en) 1983-10-06

Family

ID=3737693

Family Applications (1)

Application Number Title Priority Date Filing Date
AU51236/79A Expired AU532569B2 (en) 1979-09-26 1979-09-26 Mastering machine

Country Status (2)

Country Link
AU (1) AU532569B2 (en)
CA (1) CA1153468A (en)

Also Published As

Publication number Publication date
CA1153468A (en) 1983-09-06
AU5123679A (en) 1981-04-02

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Legal Events

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