FR2425690A1 - Assemblage de bras de lecture - Google Patents
Assemblage de bras de lectureInfo
- Publication number
- FR2425690A1 FR2425690A1 FR7911636A FR7911636A FR2425690A1 FR 2425690 A1 FR2425690 A1 FR 2425690A1 FR 7911636 A FR7911636 A FR 7911636A FR 7911636 A FR7911636 A FR 7911636A FR 2425690 A1 FR2425690 A1 FR 2425690A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- arm assembly
- reading arm
- polarization
- switch
- 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
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
- G11B3/02—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
- G11B3/08535—Driving the head
- G11B3/08564—Driving the head the head being driven by means independent of the record carrier driving means
- G11B3/08567—Driving the head the head being driven by means independent of the record carrier driving means for pivoting pick-up arms
- G11B3/0857—Driving the head the head being driven by means independent of the record carrier driving means for pivoting pick-up arms driven by means which support the pick-up arm
-
- 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
- G11B3/08512—Control of drive of the head for pivoting pick-up arms using optical 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
- G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
- G11B3/125—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using electric or magnetic means
Landscapes
- Control Of Linear Motors (AREA)
- Control Of Stepping Motors (AREA)
- Control Of Multiple Motors (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Moving Of Heads (AREA)
Abstract
A.ASSEMBLAGE DE BRAS DE LECTURE. B.ASSEMBLAGE CARACTERISE EN CE QUE LE PREMIER MOTEUR D'ENTRAINEMENT COMPORTE EN OUTRE UN CIRCUIT DE POLARISATION DU PREMIER CIRCUIT D'ASSERVISSEMENT POUR ALIMENTER LE PREMIER MOTEUR A UNE VITESSE PREDETERMINEE ET UN COMMUTATEUR ENTRE LE CIRCUIT DE POLARISATION ET LE PREMIER CIRCUIT D'ASSERVISSEMENT, CE COMMUTATEUR ETANT COMMANDE PAR LE SECOND SIGNAL DE SORTIE ELECTRIQUE DERIVE DU SECOND DETECTEUR DE FACON A COUPER LA LIAISON ENTRE LE PREMIER CIRCUIT D'ASSERVISSEMENT ET LE CIRCUIT DE POLARISATION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5430378A JPS54146606A (en) | 1978-05-08 | 1978-05-08 | Tone-arm device |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2425690A1 true FR2425690A1 (fr) | 1979-12-07 |
FR2425690B1 FR2425690B1 (fr) | 1986-11-28 |
Family
ID=12966795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7911636A Expired FR2425690B1 (fr) | 1978-05-08 | 1979-05-08 | Assemblage de bras de lecture |
Country Status (10)
Country | Link |
---|---|
US (1) | US4214757A (fr) |
JP (1) | JPS54146606A (fr) |
AT (1) | AT365799B (fr) |
AU (1) | AU523353B2 (fr) |
CA (1) | CA1109803A (fr) |
CH (1) | CH643672A5 (fr) |
DE (1) | DE2918526A1 (fr) |
FR (1) | FR2425690B1 (fr) |
GB (1) | GB2020474B (fr) |
NL (1) | NL7903612A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5611649A (en) * | 1979-07-10 | 1981-02-05 | Sony Corp | Record player |
JPS56170537U (fr) * | 1980-05-16 | 1981-12-16 | ||
US4614986A (en) * | 1983-10-31 | 1986-09-30 | Labudde Edward V | Magnetic servo with improved tracking system |
JPH0199486A (ja) * | 1987-10-12 | 1989-04-18 | Pioneer Electron Corp | ピックアップ駆動用リニアモータの制御装置 |
US7382713B2 (en) * | 2005-03-11 | 2008-06-03 | Graham Robert J | Method and apparatus for tone arm magnetic stabilization and damping system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52131705A (en) * | 1976-04-28 | 1977-11-04 | Sony Corp | Tone arm device |
JPS53131804A (en) * | 1977-04-22 | 1978-11-17 | Sony Corp | Tone arm device |
-
1978
- 1978-05-08 JP JP5430378A patent/JPS54146606A/ja active Granted
-
1979
- 1979-05-03 AU AU46712/79A patent/AU523353B2/en not_active Ceased
- 1979-05-03 CA CA326,845A patent/CA1109803A/fr not_active Expired
- 1979-05-07 CH CH423579A patent/CH643672A5/de not_active IP Right Cessation
- 1979-05-07 AT AT0341279A patent/AT365799B/de not_active IP Right Cessation
- 1979-05-08 GB GB7915758A patent/GB2020474B/en not_active Expired
- 1979-05-08 NL NL7903612A patent/NL7903612A/xx not_active Application Discontinuation
- 1979-05-08 US US06/036,993 patent/US4214757A/en not_active Expired - Lifetime
- 1979-05-08 FR FR7911636A patent/FR2425690B1/fr not_active Expired
- 1979-05-08 DE DE19792918526 patent/DE2918526A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JPS54146606A (en) | 1979-11-16 |
ATA341279A (de) | 1981-06-15 |
CH643672A5 (de) | 1984-06-15 |
CA1109803A (fr) | 1981-09-29 |
GB2020474B (en) | 1982-09-08 |
GB2020474A (en) | 1979-11-14 |
AT365799B (de) | 1982-02-10 |
AU523353B2 (en) | 1982-07-22 |
NL7903612A (nl) | 1979-11-12 |
FR2425690B1 (fr) | 1986-11-28 |
AU4671279A (en) | 1979-11-15 |
DE2918526A1 (de) | 1979-11-15 |
US4214757A (en) | 1980-07-29 |
JPS6248282B2 (fr) | 1987-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |