AU545332B2 - Mastering machine - Google Patents

Mastering machine

Info

Publication number
AU545332B2
AU545332B2 AU17940/83A AU1794083A AU545332B2 AU 545332 B2 AU545332 B2 AU 545332B2 AU 17940/83 A AU17940/83 A AU 17940/83A AU 1794083 A AU1794083 A AU 1794083A AU 545332 B2 AU545332 B2 AU 545332B2
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
AU17940/83A
Other versions
AU1794083A (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 AU17940/83A priority Critical patent/AU545332B2/en
Publication of AU1794083A publication Critical patent/AU1794083A/en
Application granted granted Critical
Publication of AU545332B2 publication Critical patent/AU545332B2/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
    • 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)
AU17940/83A 1979-09-26 1983-08-12 Mastering machine Expired AU545332B2 (en)

Priority Applications (1)

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

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU532569 1979-09-26
AU51236/79A AU532569B2 (en) 1979-09-26 1979-09-26 Mastering machine
AU17940/83A AU545332B2 (en) 1979-09-26 1983-08-12 Mastering machine

Related Parent Applications (1)

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

Publications (2)

Publication Number Publication Date
AU1794083A AU1794083A (en) 1983-12-08
AU545332B2 true AU545332B2 (en) 1985-07-11

Family

ID=25617000

Family Applications (1)

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

Country Status (1)

Country Link
AU (1) AU545332B2 (en)

Also Published As

Publication number Publication date
AU1794083A (en) 1983-12-08

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Legal Events

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