FR2322418A1 - DEVICE FOR OPTICAL READING OF A RECORD HOLDER - Google Patents

DEVICE FOR OPTICAL READING OF A RECORD HOLDER

Info

Publication number
FR2322418A1
FR2322418A1 FR7625819A FR7625819A FR2322418A1 FR 2322418 A1 FR2322418 A1 FR 2322418A1 FR 7625819 A FR7625819 A FR 7625819A FR 7625819 A FR7625819 A FR 7625819A FR 2322418 A1 FR2322418 A1 FR 2322418A1
Authority
FR
France
Prior art keywords
optical reading
record holder
record
holder
reading
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.)
Granted
Application number
FR7625819A
Other languages
French (fr)
Other versions
FR2322418B1 (en
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 FR2322418A1 publication Critical patent/FR2322418A1/en
Application granted granted Critical
Publication of FR2322418B1 publication Critical patent/FR2322418B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • 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
    • G11B7/005—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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
FR7625819A 1975-08-26 1976-08-26 DEVICE FOR OPTICAL READING OF A RECORD HOLDER Granted FR2322418A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7510035A NL7510035A (en) 1975-08-26 1975-08-26 REGISTRATION CARRIER WITH AN OPTICALLY READABLE, TRACK-SIZED, INFORMATION STRUCTURE AND DEVICE FOR READING THIS.

Publications (2)

Publication Number Publication Date
FR2322418A1 true FR2322418A1 (en) 1977-03-25
FR2322418B1 FR2322418B1 (en) 1981-09-25

Family

ID=19824353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625819A Granted FR2322418A1 (en) 1975-08-26 1976-08-26 DEVICE FOR OPTICAL READING OF A RECORD HOLDER

Country Status (17)

Country Link
JP (1) JPS5228303A (en)
AT (1) AT351819B (en)
AU (1) AU505280B2 (en)
BE (1) BE845468A (en)
CA (1) CA1082356A (en)
CH (1) CH612781A5 (en)
DE (1) DE2636464C2 (en)
DK (1) DK378976A (en)
ES (1) ES450938A1 (en)
FR (1) FR2322418A1 (en)
GB (1) GB1516285A (en)
IT (1) IT1071416B (en)
NL (1) NL7510035A (en)
NO (1) NO762892L (en)
NZ (1) NZ181831A (en)
SE (1) SE424235B (en)
ZA (1) ZA764771B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386884A1 (en) * 1977-04-08 1978-11-03 Xerox Corp OPTICAL DATA RECORDING AND RESTITUTION DEVICE
FR2441236A1 (en) * 1978-11-06 1980-06-06 Philips Nv CARRIER AS A MEDIUM FOR STORING DIGITAL INFORMATION AND WHICH CAN BE EXPLORED OPTICALLY
EP0048441A2 (en) * 1980-09-19 1982-03-31 Matsushita Electric Industrial Co., Ltd. Track searching arrangement for an optical information recording and reproducing apparatus
EP0055439B1 (en) * 1980-12-19 1986-11-12 Matsushita Electric Industrial Co., Ltd. Optical disks and recording and reproducing system using the same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2396379A1 (en) * 1977-07-01 1979-01-26 Thomson Brandt OPTICAL INFORMATION DISC READER EQUIPPED WITH AN AUTOMATIC INFORMATION ACCESS DEVICE
JPH0719377B2 (en) * 1982-11-01 1995-03-06 スタッフ・テクノロジー・パートナーズ・トウー Optical disk access-Fine movement for tracking-Coarse servo system
US4805162A (en) * 1982-11-01 1989-02-14 Storage Technology Partners Ii Fine and coarse servo system for access and tracking on an optical disk
NL8503411A (en) * 1985-12-11 1987-07-01 Philips Nv DEVICE FOR DETERMINING A CENTERING ERROR OF A ROUND TRACKED INFORMATION STRUCTURE IN AN OPTICAL REGISTRATION CARRIER WITH REGARD TO THE ROTATING AXIS OF A TURNTABLE ON WHICH THE REGISTRATION CARRIER IS INCLUDED IN A PURPOSE, INCLUDING ANY APPARATUS, INCLUDING ANY APPARATUS.
NL8600934A (en) * 1986-04-14 1987-11-02 Optical Storage Int OPTICAL REGISTRATION CARRIER AND DEVICE FOR READING THE REGISTRATION CARRIER.
US4945476A (en) * 1988-02-26 1990-07-31 Elsevier Science Publishing Company, Inc. Interactive system and method for creating and editing a knowledge base for use as a computerized aid to the cognitive process of diagnosis
DE69230168T2 (en) * 1991-12-02 2000-04-20 Koninkl Philips Electronics Nv Closed information system with copy protection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037800A1 (en) * 1970-07-30 1972-02-03 Wittmoser Sound or image plate
FR2248568A1 (en) * 1973-10-17 1975-05-16 Philips Nv

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7401858A (en) * 1974-02-12 1975-08-14 Philips Nv REGISTRATION CARRIER ON WHICH INFORMATION IS INDICATED IN AN OPTICALLY READABLE STRUCTURE.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037800A1 (en) * 1970-07-30 1972-02-03 Wittmoser Sound or image plate
FR2248568A1 (en) * 1973-10-17 1975-05-16 Philips Nv

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV202/73 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386884A1 (en) * 1977-04-08 1978-11-03 Xerox Corp OPTICAL DATA RECORDING AND RESTITUTION DEVICE
FR2441236A1 (en) * 1978-11-06 1980-06-06 Philips Nv CARRIER AS A MEDIUM FOR STORING DIGITAL INFORMATION AND WHICH CAN BE EXPLORED OPTICALLY
EP0048441A2 (en) * 1980-09-19 1982-03-31 Matsushita Electric Industrial Co., Ltd. Track searching arrangement for an optical information recording and reproducing apparatus
EP0048441A3 (en) * 1980-09-19 1982-08-04 Matsushita Electric Industrial Co., Ltd. Track locating system for optical recording and reproducing apparatus
EP0055439B1 (en) * 1980-12-19 1986-11-12 Matsushita Electric Industrial Co., Ltd. Optical disks and recording and reproducing system using the same

Also Published As

Publication number Publication date
BE845468A (en) 1977-02-24
CA1082356A (en) 1980-07-22
ZA764771B (en) 1978-03-29
DE2636464A1 (en) 1977-03-03
DE2636464C2 (en) 1984-04-05
ES450938A1 (en) 1977-12-01
IT1071416B (en) 1985-04-10
NZ181831A (en) 1980-09-12
JPS5228303A (en) 1977-03-03
CH612781A5 (en) 1979-08-15
AT351819B (en) 1979-08-10
ATA626776A (en) 1979-01-15
SE424235B (en) 1982-07-05
DK378976A (en) 1977-02-27
NL7510035A (en) 1977-03-01
GB1516285A (en) 1978-07-05
AU505280B2 (en) 1979-11-15
SE7609291L (en) 1977-02-27
NO762892L (en) 1977-03-01
AU1708076A (en) 1978-03-02
FR2322418B1 (en) 1981-09-25

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Legal Events

Date Code Title Description
ST Notification of lapse