FR2291571A1 - Aiguille de lecture de videodisques - Google Patents

Aiguille de lecture de videodisques

Info

Publication number
FR2291571A1
FR2291571A1 FR7535048A FR7535048A FR2291571A1 FR 2291571 A1 FR2291571 A1 FR 2291571A1 FR 7535048 A FR7535048 A FR 7535048A FR 7535048 A FR7535048 A FR 7535048A FR 2291571 A1 FR2291571 A1 FR 2291571A1
Authority
FR
France
Prior art keywords
videodisc
reading needle
needle
reading
videodisc 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
FR7535048A
Other languages
English (en)
Other versions
FR2291571B1 (fr
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2291571A1 publication Critical patent/FR2291571A1/fr
Application granted granted Critical
Publication of FR2291571B1 publication Critical patent/FR2291571B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus
    • 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
    • G11B3/48—Needles
FR7535048A 1974-11-18 1975-11-17 Aiguille de lecture de videodisques Granted FR2291571A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49926/74A GB1524032A (en) 1974-11-18 1974-11-18 Video disc stylus

Publications (2)

Publication Number Publication Date
FR2291571A1 true FR2291571A1 (fr) 1976-06-11
FR2291571B1 FR2291571B1 (fr) 1979-05-11

Family

ID=10454033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535048A Granted FR2291571A1 (fr) 1974-11-18 1975-11-17 Aiguille de lecture de videodisques

Country Status (6)

Country Link
US (1) US4031546A (fr)
JP (2) JPS5172403A (fr)
CA (1) CA1075810A (fr)
DE (1) DE2551794C3 (fr)
FR (1) FR2291571A1 (fr)
GB (1) GB1524032A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2371742A1 (fr) * 1976-11-17 1978-06-16 Victor Company Of Japan Pointe de lecture pour la reproduction de signaux enregistres sur un milieu d'enregistrement
FR2453462A1 (fr) * 1976-11-17 1980-10-31 Victor Company Of Japan Pointe de lecture pour la reproduction de signaux enregistres sur un milieu d'enregistrement
FR2480979A1 (fr) * 1980-04-21 1981-10-23 Rca Corp Procede de fabrication d'un style de lecture d'un disque contenant de l'information
FR2492569A1 (fr) * 1976-04-08 1982-04-23 Victor Company Of Japan

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491941A (en) * 1976-04-08 1985-01-01 Victor Company Of Japan, Ltd. Reproducing stylus for an information signal recording medium
GB1592361A (en) * 1976-09-13 1981-07-08 Rca Corp Stylus manufacture
US4497052A (en) * 1976-11-17 1985-01-29 Victor Company Of Japan, Ltd. Stylus for reproducing information signals recorded on a recording medium
US4273967A (en) * 1976-11-17 1981-06-16 Victor Company Of Japan, Limited Stylus for reproducing capacitive videodisc
JPS5395802U (fr) * 1977-01-06 1978-08-04
US4162510A (en) * 1977-03-25 1979-07-24 Rca Corporation Keel-tipped stylus for video disc systems
US4104832A (en) * 1977-03-25 1978-08-08 Rca Corporation Method for forming keel-tipped stylus for video disc systems
US4098030A (en) * 1977-03-28 1978-07-04 Rca Corporation Method for forming a narrowed-electrode pickup stylus for video disc systems
US4124867A (en) * 1977-03-28 1978-11-07 Rca Corporation Narrowed-electrode pickup stylus for video disc systems
JPS54141901U (fr) * 1978-03-25 1979-10-02
JPS57120247A (en) * 1981-12-07 1982-07-27 Victor Co Of Japan Ltd Reproducing stylus
JPS60370A (ja) * 1983-06-16 1985-01-05 Victor Co Of Japan Ltd 円盤状情報記録媒体の欠陥検査装置
JPH0523301A (ja) * 1991-07-24 1993-02-02 Kowa Co 視野計

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930117A (en) * 1974-11-14 1975-12-30 Rca Corp Video capacitive disc playback apparatus and stylus with dielectric coating therefor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"VIDEO DISC AIMS AT SIMPLE PLAYER UNIT", PAGES 30-31) *
ELECTRONICS", VOLUME 48, NO. 12, 12 JUIN 1975, NEW YORK *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492569A1 (fr) * 1976-04-08 1982-04-23 Victor Company Of Japan
FR2371742A1 (fr) * 1976-11-17 1978-06-16 Victor Company Of Japan Pointe de lecture pour la reproduction de signaux enregistres sur un milieu d'enregistrement
FR2453462A1 (fr) * 1976-11-17 1980-10-31 Victor Company Of Japan Pointe de lecture pour la reproduction de signaux enregistres sur un milieu d'enregistrement
FR2480979A1 (fr) * 1980-04-21 1981-10-23 Rca Corp Procede de fabrication d'un style de lecture d'un disque contenant de l'information

Also Published As

Publication number Publication date
DE2551794C3 (de) 1979-09-06
JPS5172403A (en) 1976-06-23
JPS5647601B2 (fr) 1981-11-11
DE2551794A1 (de) 1976-05-20
JPS5284724A (en) 1977-07-14
FR2291571B1 (fr) 1979-05-11
DE2551794B2 (fr) 1979-01-11
CA1075810A (fr) 1980-04-15
GB1524032A (en) 1978-09-06
US4031546A (en) 1977-06-21

Similar Documents

Publication Publication Date Title
NL7505170A (nl) Injectie-instrument.
NL7510553A (nl) Afleesinrichting.
FR2291571A1 (fr) Aiguille de lecture de videodisques
AT355451B (de) Schreibgeraet
SE426978B (sv) Lasanordning
AT347144B (de) Magentaufzeichnungsgeraet
FR2286461A1 (fr) Amplificateur de lecture a resistance
AT342885B (de) Aufnahme- oder wiedergabegerat
NL7509286A (nl) Schrijfinstrument.
FR2288369A1 (fr) Enregistrement magnetique
DK148399C (da) Reproduktionsapparat
NL7509215A (nl) Uitleesinrichting.
SE410808B (sv) Uppteckningsberare
AT341709B (de) Schreibtisch
BE784733A (fr) Aiguille de lecture de son
AT344005B (de) Aufzeichnungsgerat
TR19342A (tr) Okuma tertibati
NL7414155A (nl) Amplitude opnemer.
AT346091B (de) Nadelhalter
DK144088C (da) Skriveformular
AR213075A1 (es) Aparato registrador de tiempo
AR208305A1 (es) Fichas de registro
JPS5169723A (ja) Kahenbenchurishikikikaki
TR17476A (tr) Nematosid bilesim
AR201697A1 (es) Instrumento de escritura

Legal Events

Date Code Title Description
ST Notification of lapse