HK18291A - Video recorder-playback machine - Google Patents

Video recorder-playback machine

Info

Publication number
HK18291A
HK18291A HK182/91A HK18291A HK18291A HK 18291 A HK18291 A HK 18291A HK 182/91 A HK182/91 A HK 182/91A HK 18291 A HK18291 A HK 18291A HK 18291 A HK18291 A HK 18291A
Authority
HK
Hong Kong
Prior art keywords
pour
lumière
faisceau
moyen
ledit
Prior art date
Application number
HK182/91A
Other languages
English (en)
French (fr)
Inventor
Richard L. Wilkinson
George Vitale
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
Application filed by Discovision Associates filed Critical Discovision Associates
Publication of HK18291A publication Critical patent/HK18291A/en

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
    • 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
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Traffic Control Systems (AREA)
  • Microscoopes, Condenser (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Vending Machines For Individual Products (AREA)
  • Television Signal Processing For Recording (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Holo Graphy (AREA)

Claims (3)

1. Ein Aufzeichnungs-Wiedergabegerät zum Aufzeichnen und zur Wiedergabe von Information aus einer Informationsspeicherplatte, in dem enthalten sind: ein "Schreib"-Laser (16), der an einer Maschinenbasis befestigt ist und ein erstes Lichtstrahlenbündel erzeugt, das längs eines ersten Pfades (11) verläuft, um bei der Aufzeichnung von Information auf der Platte (14) verwendet zu werden; ein "Lese"-Laser (80), der ein zweites Lichtstrahlenbündel erzeugt, das längs eines zweiten Pfades verlaüft, um bei der Wiedergabe von Information von der Platte (14) verwendet zu werden; Vorrichtungen (18), um die Platte drehbar zu haltern; ein optischer Aufzeichnungs-Wiedergabekopf (34), um die genannten ersten und zweiten Lichtstrahlenbündel auf der genannten Platte zu fokussieren; optische Vorrichtungen (32, 53), mit denen die genannten ersten und zweiten Lichtstrahlenbündel durch den genannten Kopf auf die genannte Platte gerichtet werden; Vorrichtungen (38), um den auf einem Schlitten montierten genannten Kopf in radialer Richtung bezüglich der genannten Platte (14) und im allgemeinen parallel zu einem Teil (28, 11, 32) des genannten ersten Pfades zu vermodulateur, la partie diffractee du faisceau definissant ledit faisceau auxiliare de lumiere.
3. Enregistreur/lecteur selon la revendication 1, caracterise en ce que ledit moyen modulateur (17) comprend un modulateur acousto-optique (24).
HK182/91A 1980-10-20 1991-03-14 Video recorder-playback machine HK18291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19869380A 1980-10-20 1980-10-20

Publications (1)

Publication Number Publication Date
HK18291A true HK18291A (en) 1991-03-22

Family

ID=22734403

Family Applications (1)

Application Number Title Priority Date Filing Date
HK182/91A HK18291A (en) 1980-10-20 1991-03-14 Video recorder-playback machine

Country Status (12)

Country Link
EP (3) EP0181428A3 (de)
JP (3) JPS5771534A (de)
KR (1) KR850001382B1 (de)
AT (1) ATE28767T1 (de)
AU (1) AU537421B2 (de)
BR (1) BR8104924A (de)
CA (1) CA1159150A (de)
DE (1) DE3176346D1 (de)
ES (1) ES504179A0 (de)
HK (1) HK18291A (de)
MX (1) MX149812A (de)
NO (1) NO163718C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488277A (en) * 1982-02-10 1984-12-11 North American Philips Corporation Control system for an optical data recording apparatus
JPS6171472A (ja) * 1984-09-14 1986-04-12 Pioneer Electronic Corp 記録デイスク演奏装置
CN1326607C (zh) * 2004-04-05 2007-07-18 中国科学院生态环境研究中心 过渡金属取代型六铝酸盐天然气燃烧催化剂的制备工艺

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860766A (en) * 1972-05-31 1975-01-14 Tokyo Shibaura Electric Co Optical signal reproducing apparatus
JPS51109851A (de) * 1975-03-24 1976-09-29 Japan Broadcasting Corp
NL178283C (nl) * 1975-08-28 1986-02-17 Philips Nv Afspeelinrichting, in het bijzonder videospeler.
JPS52119952A (en) * 1976-04-02 1977-10-07 Canon Inc Signal recorder using acousto/optic light modulator
GB1581551A (en) * 1976-08-24 1980-12-17 Atomic Energy Authority Uk Image reproduction systems
FR2419932A2 (fr) * 1978-03-17 1979-10-12 Roussel Uclaf Nouveaux esters d'acides cyclopropane carboxyliques comportant un substituant polyhalogene, procede de preparation et compositions insecticides les renfermant
US4145758A (en) * 1977-10-25 1979-03-20 Drexler Technology Corporation Error checking method and apparatus for digital data in optical recording systems
NL7801870A (nl) * 1978-02-20 1979-08-22 Philips Nv Optische platenspeler.
US4180822A (en) * 1978-04-13 1979-12-25 Rca Corporation Optical scanner and recorder
US4213158A (en) * 1978-06-28 1980-07-15 Xerox Corporation Optical data recording system utilizing acoustic pulse imaging to minimize image blur
GB2033132A (en) * 1978-11-02 1980-05-14 Mca Disco Vision Recording and playback
FR2462758A1 (fr) * 1979-08-03 1981-02-13 Thomson Csf Dispositif optique d'acces a une piste portee par un support d'information et systeme de memoire optique comportant un tel dispositif
US4339814A (en) * 1980-10-20 1982-07-13 Discovision Associates Spindle assembly for a video recorder-playback machine
US4337538A (en) * 1980-10-20 1982-06-29 Discovision Associates Drive assembly for a video recorder-playback machine

Also Published As

Publication number Publication date
ES8301564A1 (es) 1982-12-01
EP0050366B1 (de) 1987-08-05
JPS6226099B2 (de) 1987-06-06
CA1159150A (en) 1983-12-20
MX149812A (es) 1983-12-26
ES504179A0 (es) 1982-12-01
AU537421B2 (en) 1984-06-21
JPS5771534A (en) 1982-05-04
JPS62229543A (ja) 1987-10-08
JPS62229544A (ja) 1987-10-08
BR8104924A (pt) 1982-08-31
EP0181427A2 (de) 1986-05-21
KR850001382B1 (ko) 1985-09-24
EP0181428A2 (de) 1986-05-21
NO812079L (no) 1982-04-21
NO163718C (no) 1990-07-04
EP0050366A1 (de) 1982-04-28
ATE28767T1 (de) 1987-08-15
EP0181427A3 (en) 1986-08-13
EP0181428A3 (en) 1986-08-13
AU7247881A (en) 1982-04-29
DE3176346D1 (en) 1987-09-10
NO163718B (no) 1990-03-26

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Legal Events

Date Code Title Description
PE Patent expired