FR2327607A1 - DEVICE ALLOWING THE EXPLORATION OF A DISC-SHAPED RECORD HOLDER - Google Patents

DEVICE ALLOWING THE EXPLORATION OF A DISC-SHAPED RECORD HOLDER

Info

Publication number
FR2327607A1
FR2327607A1 FR7339854A FR7339854A FR2327607A1 FR 2327607 A1 FR2327607 A1 FR 2327607A1 FR 7339854 A FR7339854 A FR 7339854A FR 7339854 A FR7339854 A FR 7339854A FR 2327607 A1 FR2327607 A1 FR 2327607A1
Authority
FR
France
Prior art keywords
exploration
disc
device allowing
shaped record
record holder
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
FR7339854A
Other languages
French (fr)
Other versions
FR2327607B1 (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 FR2327607A1 publication Critical patent/FR2327607A1/en
Application granted granted Critical
Publication of FR2327607B1 publication Critical patent/FR2327607B1/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
    • H04N5/7605—Television signal recording on discs or drums
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
FR7339854A 1972-11-11 1973-11-09 DEVICE ALLOWING THE EXPLORATION OF A DISC-SHAPED RECORD HOLDER Granted FR2327607A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7215306A NL7215306A (en) 1972-11-11 1972-11-11

Publications (2)

Publication Number Publication Date
FR2327607A1 true FR2327607A1 (en) 1977-05-06
FR2327607B1 FR2327607B1 (en) 1978-04-21

Family

ID=19817346

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339854A Granted FR2327607A1 (en) 1972-11-11 1973-11-09 DEVICE ALLOWING THE EXPLORATION OF A DISC-SHAPED RECORD HOLDER

Country Status (16)

Country Link
JP (1) JPS5531527B2 (en)
AT (1) AT330258B (en)
BE (1) BE807159A (en)
BR (1) BR7308761D0 (en)
CA (1) CA1005908A (en)
CH (1) CH588123A5 (en)
DE (1) DE2353673C2 (en)
DK (1) DK134875B (en)
ES (1) ES420411A1 (en)
FR (1) FR2327607A1 (en)
GB (1) GB1452330A (en)
IT (1) IT999742B (en)
NL (1) NL7215306A (en)
NO (1) NO141137C (en)
SE (1) SE395558B (en)
ZA (1) ZA738175B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346805A1 (en) * 1976-04-02 1977-10-28 Sony Corp SERVOMECHANICS FOR RECORDING AND READING DEVICES WITH SUPPORT

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1577132A (en) * 1976-03-19 1980-10-22 Rca Corp Compensation apparatus for a servo system with periodic command signals
CA1198766A (en) * 1981-04-20 1985-12-31 Atsuo Tanaka Magnetic rolls and a method of making the same
JPS5940241U (en) * 1982-09-04 1984-03-14 大豊工業株式会社 Axis of rotation
DE8322639U1 (en) * 1983-08-05 1983-12-01 Uranit GmbH, 5170 Jülich Guide rollers for paper, foil finishing and printing machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381086A (en) * 1962-08-16 1968-04-30 Minnesota Mining & Mfg Reproduction of television signals from photographic disc recordings
US3673412A (en) * 1970-03-02 1972-06-27 Trw Inc Radiant energy beam scanning method and apparatus
US3711641A (en) * 1971-03-22 1973-01-16 Rca Corp Velocity adjusting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346805A1 (en) * 1976-04-02 1977-10-28 Sony Corp SERVOMECHANICS FOR RECORDING AND READING DEVICES WITH SUPPORT

Also Published As

Publication number Publication date
NL7215306A (en) 1974-05-14
DE2353673C2 (en) 1982-05-27
NO141137C (en) 1980-01-16
DK134875C (en) 1977-06-20
DK134875B (en) 1977-01-31
ATA939773A (en) 1975-09-15
CH588123A5 (en) 1977-05-31
ES420411A1 (en) 1976-04-16
JPS5531527B2 (en) 1980-08-19
DE2353673A1 (en) 1974-05-16
AT330258B (en) 1976-06-25
BR7308761D0 (en) 1974-09-05
JPS50707A (en) 1975-01-07
FR2327607B1 (en) 1978-04-21
IT999742B (en) 1976-03-10
GB1452330A (en) 1976-10-13
ZA738175B (en) 1975-05-28
SE395558B (en) 1977-08-15
AU6231873A (en) 1975-05-15
NO141137B (en) 1979-10-08
CA1005908A (en) 1977-02-22
BE807159A (en) 1974-05-09

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Legal Events

Date Code Title Description
ST Notification of lapse