ZA8202011B - Apparatus for recording and reading information tracks in an optical record carrier - Google Patents

Apparatus for recording and reading information tracks in an optical record carrier

Info

Publication number
ZA8202011B
ZA8202011B ZA822011A ZA8202011A ZA8202011B ZA 8202011 B ZA8202011 B ZA 8202011B ZA 822011 A ZA822011 A ZA 822011A ZA 8202011 A ZA8202011 A ZA 8202011A ZA 8202011 B ZA8202011 B ZA 8202011B
Authority
ZA
South Africa
Prior art keywords
recording
record carrier
reading information
optical record
information tracks
Prior art date
Application number
ZA822011A
Inventor
Willem Gerard Opheij
Gerard Eduard Van Rosmalen
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
Priority to NL8101932A priority Critical patent/NL8101932A/en
Application filed by Philips Nv filed Critical Philips Nv
Publication of ZA8202011B publication Critical patent/ZA8202011B/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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • 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
ZA822011A 1981-04-21 1982-03-24 Apparatus for recording and reading information tracks in an optical record carrier ZA8202011B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL8101932A NL8101932A (en) 1981-04-21 1981-04-21 Device for recording and reading information tracks in an optical record carrier.

Publications (1)

Publication Number Publication Date
ZA8202011B true ZA8202011B (en) 1983-11-30

Family

ID=19837384

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA822011A ZA8202011B (en) 1981-04-21 1982-03-24 Apparatus for recording and reading information tracks in an optical record carrier

Country Status (15)

Country Link
US (1) US4546463A (en)
JP (1) JPH0467261B2 (en)
AT (1) AT373424B (en)
AU (1) AU548804B2 (en)
BE (1) BE892901A (en)
CA (1) CA1193721A (en)
CH (1) CH660810A5 (en)
DE (1) DE3214188C2 (en)
ES (1) ES511506A0 (en)
FR (1) FR2504300B1 (en)
GB (1) GB2097150B (en)
IT (1) IT1210875B (en)
NL (1) NL8101932A (en)
SE (1) SE453542B (en)
ZA (1) ZA8202011B (en)

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Also Published As

Publication number Publication date
SE453542B (en) 1988-02-08
JPH0467261B2 (en) 1992-10-27
DE3214188C2 (en) 1992-10-08
CH660810A5 (en) 1987-06-15
FR2504300B1 (en) 1988-01-15
CA1193721A1 (en)
IT1210875B (en) 1989-09-29
GB2097150B (en) 1984-11-07
SE8202411L (en) 1982-10-22
FR2504300A1 (en) 1982-10-22
ATA155782A (en) 1983-05-15
JPS57181441A (en) 1982-11-08
GB2097150A (en) 1982-10-27
ES511506D0 (en)
AT373424B (en) 1984-01-25
ES511506A0 (en) 1983-03-16
BE892901A1 (en)
IT8220798D0 (en) 1982-04-16
ES8305144A1 (en) 1983-03-16
US4546463A (en) 1985-10-08
AU8281182A (en) 1982-10-28
AU548804B2 (en) 1986-01-02
NL8101932A (en) 1982-11-16
BE892901A (en) 1982-10-19
CA1193721A (en) 1985-09-17
DE3214188A1 (en) 1982-11-11

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