ES8106975A1 - Perfeccionamientos en aparatos sensores de la posicion de una aguja de videodismo - Google Patents

Perfeccionamientos en aparatos sensores de la posicion de una aguja de videodismo

Info

Publication number
ES8106975A1
ES8106975A1 ES497982A ES497982A ES8106975A1 ES 8106975 A1 ES8106975 A1 ES 8106975A1 ES 497982 A ES497982 A ES 497982A ES 497982 A ES497982 A ES 497982A ES 8106975 A1 ES8106975 A1 ES 8106975A1
Authority
ES
Spain
Prior art keywords
stylus
electrode
electrodes
carriage
video disc
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
ES497982A
Other languages
English (en)
Other versions
ES497982A0 (es
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
Priority claimed from US06/105,504 external-priority patent/US4313189A/en
Priority claimed from US06/116,249 external-priority patent/US4327434A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES8106975A1 publication Critical patent/ES8106975A1/es
Publication of ES497982A0 publication Critical patent/ES497982A0/es
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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/04—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08503—Control of drive of the head
    • G11B3/08506—Control of drive of the head for pivoting pick-up arms
    • G11B3/08516—Control of drive of the head for pivoting pick-up arms using magnetic detecting means
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/38—Guiding, e.g. constructions or arrangements providing linear or other special tracking characteristics

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

CIRCUITO SENSOR DE LA POSICION DE UNA AGUJA DE VIDEODISCO MONTADA EN UN CARRO DE DESPLAZAMIENTO RADIAL. DESDE UNA FUENTE DE ALTA FRECUENCIA (61) SE ALIMENTAN UNOS ELECTRODOS (76, 78) FIJOS CON EL CARRO (75), QUE FORMAN CONDENSADORES CON UN ELECTRODO (77) FIJO CON LA AGUJA (79), DE FORMA QUE AL VARIAR LA POSICION RELATIVA CARRO (75) AGUJA (79) VARIA LA CAPACIDAD DE LOS CONDENSADORES (76, 77, 77-78), QUE HARA PREDOMINAR UNA SEÑAL (68) U OTRA (74). UN POTENCIOMETRO (63) SIRVE PARA AJUSTAR EL NIVEL DE TENSION EN SUS BORNES (64, 64) Y, POR TANTO, LA POSICION AGUJA (79) CARRO (75). UNAS RESISTENCIAS, VARIABLES CON LA TENSION (69, 73), HACEN QUE LAS TENSIONES (68, 74) DE LOS ELECTRODOS (76, 78) SEAN COMPLEMENTARIAS, ACTUANDO EL DISPOSITIVO REGULADOR POR VALOR PROMEDIO DE DIFERENCIA.
ES497982A 1979-12-20 1980-12-19 Perfeccionamientos en aparatos sensores de la posicion de una aguja de videodismo Granted ES497982A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/105,504 US4313189A (en) 1979-12-20 1979-12-20 Stylus position sensor for video disc player apparatus
US06/116,249 US4327434A (en) 1980-01-28 1980-01-28 Video disc stylus position sensor system

Publications (2)

Publication Number Publication Date
ES8106975A1 true ES8106975A1 (es) 1981-09-16
ES497982A0 ES497982A0 (es) 1981-09-16

Family

ID=26802651

Family Applications (1)

Application Number Title Priority Date Filing Date
ES497982A Granted ES497982A0 (es) 1979-12-20 1980-12-19 Perfeccionamientos en aparatos sensores de la posicion de una aguja de videodismo

Country Status (13)

Country Link
KR (1) KR840000872B1 (es)
AT (1) AT374947B (es)
AU (1) AU6536480A (es)
DE (1) DE3048140C2 (es)
DK (1) DK542580A (es)
ES (1) ES497982A0 (es)
FI (1) FI803867L (es)
FR (1) FR2473210A1 (es)
GB (1) GB2071332B (es)
IT (1) IT1134742B (es)
NL (1) NL8006932A (es)
PL (1) PL131062B1 (es)
PT (1) PT72201B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326982A (en) * 1990-03-23 1994-07-05 Geotronics Ab Analogue displacement sensor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536892A (en) * 1944-12-30 1951-01-02 Rca Corp Reproducer stylus tracking device
FR1580472A (es) * 1968-07-12 1969-09-05
GB1361610A (en) * 1971-08-09 1974-07-30 Plessey Co Ltd Apparatus for playing disc records
US3917903A (en) * 1974-11-12 1975-11-04 Rca Corp Detachable pickup arm magnetic coupling
JPS5744536Y2 (es) * 1975-10-23 1982-10-01
DE2629994A1 (de) * 1976-07-03 1978-01-05 Ted Bildplatten Signalwiedergabegeraet
GB1599052A (en) * 1977-04-19 1981-09-30 Rca Corp Pickup cartridge for record disc players
JPS5936345B2 (ja) * 1977-04-28 1984-09-03 ソニー株式会社 直線移動型ト−ンア−ム装置
JPS54307U (es) * 1977-06-04 1979-01-05

Also Published As

Publication number Publication date
PL228598A1 (es) 1981-08-21
DK542580A (da) 1981-06-21
PT72201B (en) 1982-01-05
IT8026681A0 (it) 1980-12-16
GB2071332A (en) 1981-09-16
FR2473210A1 (fr) 1981-07-10
ATA626580A (de) 1983-10-15
GB2071332B (en) 1983-10-26
AT374947B (de) 1984-06-12
IT1134742B (it) 1986-08-13
PL131062B1 (en) 1984-09-29
DE3048140C2 (de) 1984-04-12
PT72201A (en) 1981-01-01
FI803867L (fi) 1981-06-21
DE3048140A1 (de) 1981-09-10
ES497982A0 (es) 1981-09-16
KR840000872B1 (ko) 1984-06-20
AU6536480A (en) 1981-06-25
NL8006932A (nl) 1981-07-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000201