[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

AU497709B2 - Record carrier - Google Patents

Record carrier

Info

Publication number
AU497709B2
AU497709B2 AU78025/75A AU7802575A AU497709B2 AU 497709 B2 AU497709 B2 AU 497709B2 AU 78025/75 A AU78025/75 A AU 78025/75A AU 7802575 A AU7802575 A AU 7802575A AU 497709 B2 AU497709 B2 AU 497709B2
Authority
AU
Australia
Prior art keywords
record carrier
record
carrier
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
AU78025/75A
Other versions
AU7802575A (en
Inventor
H. D. Bouwhuis G Lang
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of AU7802575A publication Critical patent/AU7802575A/en
Application granted granted Critical
Publication of AU497709B2 publication Critical patent/AU497709B2/en
Expired legal-status Critical Current

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
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005Reproducing
    • 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
    • G11B7/09Disposition 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
    • G11B7/0938Disposition 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
    • 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085Pits
AU78025/75A 1974-02-12 1975-02-10 Record carrier Expired AU497709B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7401858A NL7401858A (en) 1974-02-12 1974-02-12 REGISTRATION CARRIER ON WHICH INFORMATION IS INDICATED IN AN OPTICALLY READABLE STRUCTURE.
NLNL7401858 1974-02-12

Publications (2)

Publication Number Publication Date
AU7802575A AU7802575A (en) 1976-08-12
AU497709B2 true AU497709B2 (en) 1979-01-04

Family

ID=19820729

Family Applications (1)

Application Number Title Priority Date Filing Date
AU78025/75A Expired AU497709B2 (en) 1974-02-12 1975-02-10 Record carrier

Country Status (16)

Country Link
JP (1) JPS50119517A (en)
AT (1) AT338889B (en)
AU (1) AU497709B2 (en)
BE (1) BE825379A (en)
CA (1) CA1047644A (en)
CH (1) CH592350A5 (en)
DE (1) DE2503975A1 (en)
DK (1) DK138567B (en)
ES (2) ES434588A1 (en)
FR (1) FR2260911B1 (en)
GB (1) GB1501141A (en)
IT (1) IT1031581B (en)
NL (1) NL7401858A (en)
NO (1) NO750416L (en)
SE (1) SE410808B (en)
ZA (1) ZA75131B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7510035A (en) * 1975-08-26 1977-03-01 Philips Nv REGISTRATION CARRIER WITH AN OPTICALLY READABLE, TRACK-SIZED, INFORMATION STRUCTURE AND DEVICE FOR READING THIS.
JPS5363002A (en) * 1976-11-18 1978-06-06 Sony Corp Signal recording system and disk type medium for recording signal
US4161752A (en) * 1977-06-28 1979-07-17 International Business Machines Corporation High density video disk having two pit depths
NL7803517A (en) * 1978-04-03 1979-10-05 Philips Nv RECORD CARRIER WITH AN OPTICALLY READABLE PHASE STRUCTURE AND DEVICE FOR READING.
JPS57103132A (en) * 1980-12-16 1982-06-26 Matsushita Electric Ind Co Ltd Recording information carrier and its recorder and reproducer
NL8100098A (en) * 1981-01-12 1982-08-02 Philips Nv RECORD CARRIER WITH OPTICALLY READABLE INFORMATION STRUCTURE.
GB8309447D0 (en) * 1983-04-07 1983-05-11 Combined Tech Corp Plc Optical data storage
US4623784A (en) * 1984-12-20 1986-11-18 Drexler Technology Corporation Laser recording apparatus with off-center lens and error detection
DE68923833T2 (en) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp Optical head with tilt correction servomechanism.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314052A (en) * 1963-04-12 1967-04-11 Ibm Light modulation system
DE1932164B2 (en) * 1968-07-15 1972-04-06 International Business Machines Corp , Armonk, NY (V St A ) PROCESS FOR INSERTING METAL IN PART AREAS OF A SUBSTRATE ESPECIALLY CONSISTING OF SEMICONDUCTOR MATERIAL
JPS5117405B2 (en) * 1972-05-15 1976-06-02

Also Published As

Publication number Publication date
CA1047644A (en) 1979-01-30
NL7401858A (en) 1975-08-14
DE2503975A1 (en) 1975-08-14
ZA75131B (en) 1976-08-25
SE410808B (en) 1979-11-05
BE825379A (en) 1975-08-11
IT1031581B (en) 1979-05-10
FR2260911B1 (en) 1982-03-05
AT338889B (en) 1977-09-26
GB1501141A (en) 1978-02-15
CH592350A5 (en) 1977-10-31
FR2260911A1 (en) 1975-09-05
ES452770A1 (en) 1977-10-01
DK45475A (en) 1975-10-06
DK138567B (en) 1978-09-25
ATA98275A (en) 1977-01-15
ES434588A1 (en) 1977-03-16
DK138567C (en) 1979-03-05
NO750416L (en) 1975-08-13
SE7501407L (en) 1975-08-13
JPS50119517A (en) 1975-09-19
AU7802575A (en) 1976-08-12

Similar Documents

Publication Publication Date Title
CA1034927A (en) Ski carrier
AU498992B2 (en) Record carrier
AU506849B2 (en) Multipackage carrier
AU506711B2 (en) Container carrier
AU505280B2 (en) Record carrier
AU467292B2 (en) Eye-bush
AU497709B2 (en) Record carrier
CA1030920A (en) Article carrier
JPS53127230A (en) Record carrier
AU498735B2 (en) Carrier regeneration
CA1031746A (en) Recorder pen
CA1022892A (en) Reusable wrap-basket carrier
CA1007039A (en) Pin-terminal carrier strip
AU479570B2 (en) Improved warp-knitteed tape
AU491482B2 (en) Improved cassette
KR790000666Y1 (en) Simplified phonograph
CA1008411A (en) Article carrier
AU495260B2 (en) Carrier
CA1013325A (en) Cassette scratch-strain recorder
AU482405B2 (en) Seco-prostaglandins
AU488592B2 (en) Tapemeasure
AU463759B2 (en) Cyclopentanediones
AU488720B2 (en) 2-deutero-3-fluoro-alanine
AU484632B2 (en) Aryloxyphenylpropylamines
AU489065B2 (en) B-cyproheptadine-n-oxide