CA1095837A - Pointe de lecture du sillon d'un disque - Google Patents

Pointe de lecture du sillon d'un disque

Info

Publication number
CA1095837A
CA1095837A CA283,720A CA283720A CA1095837A CA 1095837 A CA1095837 A CA 1095837A CA 283720 A CA283720 A CA 283720A CA 1095837 A CA1095837 A CA 1095837A
Authority
CA
Canada
Prior art keywords
reading
planes
probing
arc
groove
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
CA283,720A
Other languages
English (en)
French (fr)
Inventor
Aalt-Jouk Van Den Hul
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.)
Individual
Original Assignee
Individual
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 CH1093876A external-priority patent/CH597667A5/de
Priority claimed from CH385277A external-priority patent/CH604311A5/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA1095837A publication Critical patent/CA1095837A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Magnetic Record Carriers (AREA)
CA283,720A 1976-08-27 1977-07-29 Pointe de lecture du sillon d'un disque Expired CA1095837A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH010938/76 1976-08-27
CH1093876A CH597667A5 (en) 1976-08-27 1976-08-27 Stereophonic or quadraphonic pick=up stylus
CH385277A CH604311A5 (en) 1977-03-23 1977-03-23 Stereophonic or quadraphonic pick=up stylus
CH003852/77 1977-03-23

Publications (1)

Publication Number Publication Date
CA1095837A true CA1095837A (fr) 1981-02-17

Family

ID=25694008

Family Applications (1)

Application Number Title Priority Date Filing Date
CA283,720A Expired CA1095837A (fr) 1976-08-27 1977-07-29 Pointe de lecture du sillon d'un disque

Country Status (10)

Country Link
US (1) US4365325A (enExample)
JP (1) JPS5329104A (enExample)
AT (1) AT358843B (enExample)
CA (1) CA1095837A (enExample)
DE (1) DE2732533C3 (enExample)
DK (1) DK161228C (enExample)
ES (1) ES230610Y (enExample)
FR (1) FR2363159A1 (enExample)
GB (1) GB1584747A (enExample)
NL (1) NL170779C (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159616U (ja) * 1982-04-21 1983-10-24 並木精密宝石株式会社 レコ−ド用再生針
FR2568711B1 (fr) * 1984-07-31 1989-06-16 Zafira Procede et dispositif pour la fabrication de diamants de lecture elliptiques et diamants elliptiques ainsi obtenus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544495A (en) * 1945-03-19 1951-03-06 Dictaphone Corp Stylus construction
FR920559A (fr) * 1945-03-19 1947-04-11 Dictaphone Corp Perfectionnement dans les méthodes de fabrication des styles transmetteurs de vibrations
DE1180156B (de) * 1961-09-20 1964-10-22 K H Dreher Fa Abtastorgan fuer Tonabnehmer
US3534968A (en) * 1969-02-06 1970-10-20 Bruce Diamond Corp Elliptical phonograph stylus
DE6949182U (de) * 1969-12-20 1971-01-28 Ernst Fr Weinz Weka Ohg Tonabnehmernadel mit edelsteinspitze
CH516205A (de) * 1970-03-09 1971-11-30 Bruce Diamond Corp Tonabnehmernadel
DE2023904B2 (de) * 1970-05-15 1972-02-03 Wilms, Hermann, 2400 Lübeck Abtastnadel
GB1383238A (en) * 1971-03-13 1975-02-05 Victor Company Of Japan Phonograph pickup stylus
US3871664A (en) * 1973-05-29 1975-03-18 Diamagnetics Inc Phonograph stylus
JPS5830641B2 (ja) * 1975-09-23 1983-06-30 オグラホウセキセイキコウギヨウ カブシキガイシヤ エンバンレコ−ドサイセイバリ

Also Published As

Publication number Publication date
NL170779C (nl) 1982-12-16
ES230610U (es) 1977-11-01
US4365325A (en) 1982-12-21
GB1584747A (en) 1981-02-18
FR2363159A1 (fr) 1978-03-24
NL170779B (nl) 1982-07-16
ATA521377A (de) 1980-02-15
DE2732533C3 (de) 1981-10-01
NL7709168A (nl) 1978-03-01
DK161228B (da) 1991-06-10
JPS5329104A (en) 1978-03-18
ES230610Y (es) 1978-03-01
DE2732533A1 (de) 1978-03-02
FR2363159B1 (enExample) 1984-04-27
DE2732533B2 (enExample) 1980-12-18
DK161228C (da) 1991-11-25
DK335077A (da) 1978-02-28
AT358843B (de) 1980-10-10

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Legal Events

Date Code Title Description
MKEX Expiry