BE674554A - - Google Patents

Info

Publication number
BE674554A
BE674554A BE674554DA BE674554A BE 674554 A BE674554 A BE 674554A BE 674554D A BE674554D A BE 674554DA BE 674554 A BE674554 A BE 674554A
Authority
BE
Belgium
Prior art keywords
sep
disc
needle
recording
turns
Prior art date
Application number
Other languages
English (en)
French (fr)
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
Priority claimed from AU53477/64A external-priority patent/AU401715B2/en
Application filed filed Critical
Publication of BE674554A publication Critical patent/BE674554A/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K5/00—Methods or arrangements for verifying the correctness of markings on a record carrier; Column detection devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
BE674554D 1964-12-30 1965-12-30 BE674554A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU53477/64A AU401715B2 (en) 1964-12-30 Stylus and equipment testing record for record players
AU5582265 1965-03-02

Publications (1)

Publication Number Publication Date
BE674554A true BE674554A (de) 1966-05-16

Family

ID=25630080

Family Applications (1)

Application Number Title Priority Date Filing Date
BE674554D BE674554A (de) 1964-12-30 1965-12-30

Country Status (6)

Country Link
US (1) US3460841A (de)
BE (1) BE674554A (de)
DE (1) DE1447987B2 (de)
FR (1) FR1462631A (de)
GB (1) GB1134100A (de)
NL (1) NL6517067A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375095A (en) * 1981-01-05 1983-02-22 Rca Corporation Method and apparatus for testing styli
US4416144A (en) * 1982-04-21 1983-11-22 Sperry Corporation Apparatus for evaluating slider flying dynamics
US4541716A (en) * 1983-04-15 1985-09-17 Rca Corporation Detection of defects in a circular or spiral diffraction grating
US5163334A (en) * 1990-10-24 1992-11-17 Simonds Industries Inc. Circular saw testing technique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740296A (en) * 1952-12-11 1956-04-03 Permo Inc Phonograph needle comparator

Also Published As

Publication number Publication date
NL6517067A (de) 1966-07-01
US3460841A (en) 1969-08-12
FR1462631A (fr) 1966-12-16
DE1447987A1 (de) 1969-03-20
GB1134100A (en) 1968-11-20
DE1447987B2 (de) 1974-03-14

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