SE444872B - Uppteckningsberarkropp och uppteckningsberare for optiskt inskrivningsbar och avlesningsbar information och med ett optiskt detekterbart servospar samt apparater for informationsinskrivning i uppteckningsberarkroppen oc - Google Patents

Uppteckningsberarkropp och uppteckningsberare for optiskt inskrivningsbar och avlesningsbar information och med ett optiskt detekterbart servospar samt apparater for informationsinskrivning i uppteckningsberarkroppen oc

Info

Publication number
SE444872B
SE444872B SE7902223A SE7902223A SE444872B SE 444872 B SE444872 B SE 444872B SE 7902223 A SE7902223 A SE 7902223A SE 7902223 A SE7902223 A SE 7902223A SE 444872 B SE444872 B SE 444872B
Authority
SE
Sweden
Prior art keywords
servo
information
track
record carrier
writing
Prior art date
Application number
SE7902223A
Other languages
English (en)
Swedish (sv)
Other versions
SE7902223L (sv
Inventor
Rosmalen G E Van
W J Kleuters
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 SE7902223L publication Critical patent/SE7902223L/xx
Publication of SE444872B publication Critical patent/SE444872B/sv

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
    • G11B7/24—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
    • G11B7/24085—Pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/026—Electronic editing of analogue information signals, e.g. audio or video signals on discs
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optical Recording Or Reproduction (AREA)
SE7902223A 1978-03-16 1979-03-13 Uppteckningsberarkropp och uppteckningsberare for optiskt inskrivningsbar och avlesningsbar information och med ett optiskt detekterbart servospar samt apparater for informationsinskrivning i uppteckningsberarkroppen oc SE444872B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7802860A NL7802860A (nl) 1978-03-16 1978-03-16 Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen.

Publications (2)

Publication Number Publication Date
SE7902223L SE7902223L (sv) 1979-09-17
SE444872B true SE444872B (sv) 1986-05-12

Family

ID=19830504

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7902223A SE444872B (sv) 1978-03-16 1979-03-13 Uppteckningsberarkropp och uppteckningsberare for optiskt inskrivningsbar och avlesningsbar information och med ett optiskt detekterbart servospar samt apparater for informationsinskrivning i uppteckningsberarkroppen oc

Country Status (11)

Country Link
US (2) US4870508A (el)
JP (2) JPS54130103A (el)
BE (1) BE874918A (el)
CA (1) CA1143473A (el)
CH (1) CH662666A5 (el)
DE (1) DE2909770C2 (el)
FR (1) FR2420183B1 (el)
GB (1) GB2016747B (el)
IT (1) IT1111723B (el)
NL (1) NL7802860A (el)
SE (1) SE444872B (el)

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Also Published As

Publication number Publication date
GB2016747A (en) 1979-09-26
DE2909770C2 (de) 1987-05-07
US4972403A (en) 1990-11-20
JPH0381209B2 (el) 1991-12-27
JPS54130103A (en) 1979-10-09
FR2420183A1 (fr) 1979-10-12
US4870508A (en) 1989-09-26
BE874918A (fr) 1979-09-17
NL7802860A (nl) 1979-09-18
FR2420183B1 (fr) 1988-04-29
SE7902223L (sv) 1979-09-17
GB2016747B (en) 1982-09-08
IT7920945A0 (it) 1979-03-13
DE2909770A1 (de) 1979-09-20
IT1111723B (it) 1986-01-13
JPS6251043A (ja) 1987-03-05
CH662666A5 (de) 1987-10-15
CA1143473A (en) 1983-03-22
JPS6259373B2 (el) 1987-12-10

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