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FR2468966A1 - VIDEO DISC PREVIEW DEVICE - Google Patents

VIDEO DISC PREVIEW DEVICE

Info

Publication number
FR2468966A1
FR2468966A1 FR8022848A FR8022848A FR2468966A1 FR 2468966 A1 FR2468966 A1 FR 2468966A1 FR 8022848 A FR8022848 A FR 8022848A FR 8022848 A FR8022848 A FR 8022848A FR 2468966 A1 FR2468966 A1 FR 2468966A1
Authority
FR
France
Prior art keywords
carriage
arm
needle
preview device
drive signals
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.)
Pending
Application number
FR8022848A
Other languages
French (fr)
Inventor
Byron Kent Taylor
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 FR2468966A1 publication Critical patent/FR2468966A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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

  • Moving Of Heads (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

L'invention concerne un dispositif de pré-visualisation dans un tourne-vidéodisque, qui comprend une aiguille montée à une première extrémité d'un bras dont la seconde est reliée souplement à un chariot pour que l'aiguille puisse traverser le disque radialement, la vitesse du chariot étant déterminée par la sollicitation mécanique du bras par rapport au chariot. Selon l'invention, un moyen de translation 23, 26 est sensible aux signaux d'entraînement pour donner à l'aiguille, son mouvement de translation par rapport au chariot, un circuit 66, 67 produit des signaux d'entraînement à une fréquence prescrite et moyenne de récurrence afin que le moyen de translation produise une sollicitation métallique dont la moyenne est faite dans le temps, sur le bras, pour déterminer la vitesse de translation du chariot. L'invention s'applique notamment à la restitution de vidéodisques.A preview device in a video record player comprises a needle mounted at a first end of an arm, the second of which is loosely connected to a carriage so that the needle can pass radially through the disc, speed of the carriage being determined by the mechanical stress of the arm relative to the carriage. According to the invention, a translation means 23, 26 is responsive to the drive signals to give the needle its translational movement relative to the carriage, a circuit 66, 67 produces drive signals at a prescribed frequency and recurrence average so that the translation means produce a metallic stress averaged over time, on the arm, to determine the translation speed of the carriage. The invention applies in particular to the reproduction of videodiscs.

FR8022848A 1979-10-26 1980-10-24 VIDEO DISC PREVIEW DEVICE Pending FR2468966A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8853579A 1979-10-26 1979-10-26

Publications (1)

Publication Number Publication Date
FR2468966A1 true FR2468966A1 (en) 1981-05-08

Family

ID=22211932

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8022848A Pending FR2468966A1 (en) 1979-10-26 1980-10-24 VIDEO DISC PREVIEW DEVICE

Country Status (14)

Country Link
JP (1) JPS5674867A (en)
AT (1) ATA518280A (en)
AU (1) AU6349880A (en)
BE (1) BE885835A (en)
DE (1) DE3040249A1 (en)
DK (1) DK452180A (en)
ES (1) ES496247A0 (en)
FI (1) FI803276L (en)
FR (1) FR2468966A1 (en)
GB (1) GB2061568A (en)
IT (1) IT1133819B (en)
NL (1) NL8005871A (en)
PL (1) PL227471A1 (en)
ZA (1) ZA806490B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188340A (en) * 1982-04-28 1983-11-02 Sony Corp Optical reproducer
JPS5936069U (en) * 1982-08-30 1984-03-06 三菱電機株式会社 PCM disk playback device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2225804A1 (en) * 1973-04-11 1974-11-08 Ted Bildplatten
FR2282693A1 (en) * 1974-08-22 1976-03-19 Rca Corp DEVICE ALLOWING A READING NEEDLE OF A ROTATING DISC TO SELECTIVELY CHANGE SPINDLES
US3963864A (en) * 1974-11-12 1976-06-15 Rca Corporation Pickup arm assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2225804A1 (en) * 1973-04-11 1974-11-08 Ted Bildplatten
FR2282693A1 (en) * 1974-08-22 1976-03-19 Rca Corp DEVICE ALLOWING A READING NEEDLE OF A ROTATING DISC TO SELECTIVELY CHANGE SPINDLES
US3963864A (en) * 1974-11-12 1976-06-15 Rca Corporation Pickup arm assembly

Also Published As

Publication number Publication date
GB2061568A (en) 1981-05-13
IT1133819B (en) 1986-07-24
PL227471A1 (en) 1981-06-19
JPS5674867A (en) 1981-06-20
ZA806490B (en) 1981-10-28
ATA518280A (en) 1983-03-15
DK452180A (en) 1981-04-27
ES8201340A1 (en) 1981-12-01
FI803276A7 (en) 1981-04-27
DE3040249A1 (en) 1982-03-04
FI803276L (en) 1981-04-27
ES496247A0 (en) 1981-12-01
IT8024911A0 (en) 1980-09-25
NL8005871A (en) 1981-04-28
BE885835A (en) 1981-02-16
AU6349880A (en) 1981-04-30

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