FR2426953A1 - RECORDING / RESTITUTION DEVICE FACILITATING THE JUMPING OF Furrows - Google Patents

RECORDING / RESTITUTION DEVICE FACILITATING THE JUMPING OF Furrows

Info

Publication number
FR2426953A1
FR2426953A1 FR7912880A FR7912880A FR2426953A1 FR 2426953 A1 FR2426953 A1 FR 2426953A1 FR 7912880 A FR7912880 A FR 7912880A FR 7912880 A FR7912880 A FR 7912880A FR 2426953 A1 FR2426953 A1 FR 2426953A1
Authority
FR
France
Prior art keywords
pilot signal
needle
jumping
groove
furrows
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
FR7912880A
Other languages
French (fr)
Other versions
FR2426953B1 (en
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 US05/908,515 external-priority patent/US4183059A/en
Priority claimed from US05/908,516 external-priority patent/US4198658A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2426953A1 publication Critical patent/FR2426953A1/en
Application granted granted Critical
Publication of FR2426953B1 publication Critical patent/FR2426953B1/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
    • 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
    • G11B3/42—Arranging, supporting, or driving of heads or of transducers relatively to record carriers with provision for adaptation or interchange of heads
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/015—Protective gloves
    • A41D19/01547—Protective gloves with grip improving means
    • A41D19/01552—Protective gloves with grip improving means using hooks and loops fastening system
    • 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
    • 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
    • G11B21/06—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 the record carrier having mechanical means to ensure traverse movement of the head, e.g. grooves
    • 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
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • 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
    • G11B3/127—Providing horizontal force, e.g. anti-skating force
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/7605—Television signal recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/903—Television signal recording using variable electrical capacitive recording

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Textile Engineering (AREA)
  • Television Signal Processing For Recording (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

L'invention concerne un système de restitution de vidéodisques ayant un circuit couplé à la sortie de l'aiguille, pour restituer un signal pilote, et un circuit sensible aux écarts de la phase du signal pilote pour développer un signal d'erreur indiquant la grandeur et le sens d'une interruption de la progression régulière de l'aiguille le long d'un sillon en spirale, due à un glissement soudain de l'emplacement radial de l'aiguille. Selon l'invention, pour provoquer un saut sélectif d'un sillon, on prévoit un circuit sauteur de sillon 92 entre un filtre 88 du signal pilote, une boucle verrouillée en phase 90 et un tourne-disque 60. L'invention s'applique notamment aux tourne-vidéodisques.A video disc playback system having a circuit coupled to the output of the needle, for outputting a pilot signal, and a circuit responsive to phase deviations of the pilot signal for developing an error signal indicating the magnitude. and the sense of an interruption in the smooth progression of the needle along a spiral groove, due to a sudden slip of the radial location of the needle. According to the invention, to cause a selective jump of a groove, a groove jumping circuit 92 is provided between a filter 88 of the pilot signal, a phase-locked loop 90 and a record player 60. The invention applies. especially to video disc players.

FR7912880A 1978-05-22 1979-05-21 RECORDING / RESTITUTION DEVICE FACILITATING THE JUMPING OF Furrows Granted FR2426953A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/908,515 US4183059A (en) 1978-05-22 1978-05-22 Track skipper for a video disc player
US05/908,516 US4198658A (en) 1978-05-22 1978-05-22 Recording/playback apparatus facilitating track skip detection

Publications (2)

Publication Number Publication Date
FR2426953A1 true FR2426953A1 (en) 1979-12-21
FR2426953B1 FR2426953B1 (en) 1985-02-15

Family

ID=27129503

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912880A Granted FR2426953A1 (en) 1978-05-22 1979-05-21 RECORDING / RESTITUTION DEVICE FACILITATING THE JUMPING OF Furrows

Country Status (8)

Country Link
AT (1) AT371611B (en)
AU (1) AU530389B2 (en)
DE (1) DE2920794A1 (en)
FR (1) FR2426953A1 (en)
GB (1) GB2021841B (en)
IT (2) IT1192731B (en)
NL (1) NL7903997A (en)
PL (1) PL123496B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441900A1 (en) * 1978-11-16 1980-06-13 Rca Corp Video disc player - has track skipping device comprising electromagnet moving stylus radially across disc
FR2441901A1 (en) * 1978-11-16 1980-06-13 Rca Corp Video disc player - has track skipping device comprising coils and permanent magnet moving needle radially across disc
FR2468180A1 (en) * 1979-10-18 1981-04-30 Rca Corp DEVICE FOR TRANSLATION OF AN ADAPTATION READING NEEDLE
FR2468181A1 (en) * 1979-10-18 1981-04-30 Rca Corp DEVICE FOR EXPLORING THE INFORMATION, ON A VIDEODISK, AT A DIFFERENT RATE FROM NORMAL READING, AND MECHANISM FOR PREVIEWING THE INFORMATION
FR2490906A1 (en) * 1980-09-23 1982-03-26 Rca Corp DEVICE FOR CONTROLLING THE NEEDLE OF A VIDEODISK

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910168U (en) * 1982-07-12 1984-01-23 ソニー株式会社 disc playback device
GB2137010A (en) * 1983-03-21 1984-09-26 Rca Corp Disc player

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
US3963860A (en) * 1974-11-12 1976-06-15 Rca Corporation Locked groove detection and correction in video disc playback apparatus
US3963861A (en) * 1974-11-12 1976-06-15 Rca Corporation Disc record groove skipper apparatus

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
US3963860A (en) * 1974-11-12 1976-06-15 Rca Corporation Locked groove detection and correction in video disc playback apparatus
US3963861A (en) * 1974-11-12 1976-06-15 Rca Corporation Disc record groove skipper apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441900A1 (en) * 1978-11-16 1980-06-13 Rca Corp Video disc player - has track skipping device comprising electromagnet moving stylus radially across disc
FR2441901A1 (en) * 1978-11-16 1980-06-13 Rca Corp Video disc player - has track skipping device comprising coils and permanent magnet moving needle radially across disc
FR2468180A1 (en) * 1979-10-18 1981-04-30 Rca Corp DEVICE FOR TRANSLATION OF AN ADAPTATION READING NEEDLE
FR2468181A1 (en) * 1979-10-18 1981-04-30 Rca Corp DEVICE FOR EXPLORING THE INFORMATION, ON A VIDEODISK, AT A DIFFERENT RATE FROM NORMAL READING, AND MECHANISM FOR PREVIEWING THE INFORMATION
FR2490906A1 (en) * 1980-09-23 1982-03-26 Rca Corp DEVICE FOR CONTROLLING THE NEEDLE OF A VIDEODISK

Also Published As

Publication number Publication date
AU530389B2 (en) 1983-07-14
PL123496B1 (en) 1982-10-30
AT371611B (en) 1983-07-11
NL7903997A (en) 1979-11-26
AU4712279A (en) 1979-11-29
IT8219184A0 (en) 1982-01-19
PL215776A1 (en) 1980-05-05
ATA376579A (en) 1982-11-15
GB2021841A (en) 1979-12-05
FR2426953B1 (en) 1985-02-15
GB2021841B (en) 1982-06-30
IT1151352B (en) 1986-12-17
IT7922841A0 (en) 1979-05-18
IT1192731B (en) 1988-05-04
DE2920794A1 (en) 1979-11-29

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Legal Events

Date Code Title Description
ST Notification of lapse