FR2347743A1 - Dispositif d'enregistrement et/ou de reproduction, par exemple de signaux video et de signaux audio - Google Patents

Dispositif d'enregistrement et/ou de reproduction, par exemple de signaux video et de signaux audio

Info

Publication number
FR2347743A1
FR2347743A1 FR7710835A FR7710835A FR2347743A1 FR 2347743 A1 FR2347743 A1 FR 2347743A1 FR 7710835 A FR7710835 A FR 7710835A FR 7710835 A FR7710835 A FR 7710835A FR 2347743 A1 FR2347743 A1 FR 2347743A1
Authority
FR
France
Prior art keywords
recording
playback device
example video
signals
audio 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.)
Granted
Application number
FR7710835A
Other languages
English (en)
Other versions
FR2347743B1 (fr
Inventor
Hisao Kinjo
Keiji Ozawa
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 JP3880976A external-priority patent/JPS52123205A/ja
Priority claimed from JP12776776A external-priority patent/JPS52123222A/ja
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of FR2347743A1 publication Critical patent/FR2347743A1/fr
Application granted granted Critical
Publication of FR2347743B1 publication Critical patent/FR2347743B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/03—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles
    • G11B11/05—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles with reproducing by capacitive means
    • 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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
    • G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/026—Electronic editing of analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • 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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
FR7710835A 1976-04-08 1977-04-08 Dispositif d'enregistrement et/ou de reproduction, par exemple de signaux video et de signaux audio Granted FR2347743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3880976A JPS52123205A (en) 1976-04-08 1976-04-08 Video-signal recording and reproducing system
JP12776776A JPS52123222A (en) 1976-10-26 1976-10-26 Information disk reproducing system

Publications (2)

Publication Number Publication Date
FR2347743A1 true FR2347743A1 (fr) 1977-11-04
FR2347743B1 FR2347743B1 (fr) 1982-07-02

Family

ID=26378089

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7710835A Granted FR2347743A1 (fr) 1976-04-08 1977-04-08 Dispositif d'enregistrement et/ou de reproduction, par exemple de signaux video et de signaux audio
FR8116451A Expired FR2492569B1 (fr) 1976-04-08 1981-08-28

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR8116451A Expired FR2492569B1 (fr) 1976-04-08 1981-08-28

Country Status (6)

Country Link
US (1) US4331976A (fr)
CA (1) CA1130456A (fr)
DE (2) DE2715573C2 (fr)
FR (2) FR2347743A1 (fr)
GB (1) GB1585546A (fr)
NL (1) NL185738C (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384317A1 (fr) * 1977-02-09 1978-10-13 Victor Company Of Japan Dispositif d'enregistrement, notamment de signaux d'information, sur des supports tournants
FR2415403A1 (fr) * 1978-01-20 1979-08-17 Victor Company Of Japan Dispositif de reproduction pour appareil permettant de reproduire des signaux video enregistres sur un support d'enregistrement tournant
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
FR2489996A1 (fr) * 1980-09-09 1982-03-12 Victor Company Of Japan Circuit de detection de signaux periodiques dans un appareil reproducteur
FR2490437A1 (fr) * 1980-09-12 1982-03-19 Victor Company Of Japan Circuit de detection d'un signal periodique pour appareil de reproduction
FR2496953A1 (fr) * 1980-12-22 1982-06-25 Victor Company Of Japan Appareil de reproduction d'un support d'enregistrement tournant
FR2504301A1 (fr) * 1981-04-15 1982-10-22 Thomson Csf Support d'informations mobile et dispositif d'enregistrement-lecture comprenant un tel support
FR2509506A1 (fr) * 1981-05-18 1983-01-14 Victor Company Of Japan Dispositif de reproduction de signaux d'adresse pour un appareil de reproduction de support d'enregistrement tournant
FR2513789A1 (fr) * 1981-09-25 1983-04-01 Victor Company Of Japan Support d'enregistrement tournant
FR2523349A1 (fr) * 1982-03-12 1983-09-16 Thomson Csf Procede et dispositif optique de generation de signaux d'asservissements de la position d'une tache d'exploration des pistes d'un support d'information
EP0089816A2 (fr) * 1982-03-18 1983-09-28 Sony Corporation Appareil pour commander la position de piste d'une tête dans un appareil d'enregistrement ou de reproduction d'information
FR2536932A1 (fr) * 1982-11-25 1984-06-01 Sony Corp Systeme de cinema video utilisant un code de commande, lu en mode de lecture pour commander automatiquement la mise au point, les dimensions de l'ecran ou autres parametres
FR2543347A1 (fr) * 1983-03-23 1984-09-28 Xerox Corp Systeme suiveur de piste pour commande de disque optique
FR2613865A1 (fr) * 1982-03-12 1988-10-14 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
EP0369989A2 (fr) * 1982-03-12 1990-05-23 Thomson-Csf Support d'information mobile prégravé et dispositif optique de suivi de piste mettant en oeuvre un tel support

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846781B2 (ja) * 1976-10-14 1983-10-18 日本ビクター株式会社 回転記録媒体再生装置における信号トラツキング用カンチレバ−装置
DE2850363C2 (de) * 1977-11-22 1986-04-17 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Direktzugriffsanordnung für ein Gerät zur Wiedergabe von Information von einem rotierenden Aufzeichnungsmedium
NL7802860A (nl) * 1978-03-16 1979-09-18 Philips Nv Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen.
SE7813460L (sv) * 1978-03-27 1979-09-28 Mca Disco Vision Videoskivspelare
JPS54128303A (en) * 1978-03-29 1979-10-04 Victor Co Of Japan Ltd Optical reproducing device of information recording medium disc
JPS6114012Y2 (fr) * 1978-06-12 1986-05-01
JPS55113175A (en) * 1979-02-23 1980-09-01 Victor Co Of Japan Ltd Information signal recording medium and its recording system
GB2046480A (en) * 1979-03-27 1980-11-12 Tokyo Shibaura Electric Co Tracking servo and playback system for video disc
NL8000121A (nl) * 1980-01-09 1981-08-03 Philips Nv Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen van datainformatie in zo'n registratiedrager en inrichting voor het uitlezen van zo'n registratiedrager.
JPS56132073A (en) * 1980-03-21 1981-10-16 Victor Co Of Japan Ltd Reproducing device for disc-form information recording medium
JPS56134359A (en) * 1980-03-22 1981-10-21 Victor Co Of Japan Ltd Driving circuit of feeder direct current motor
JPS5765966A (en) * 1980-10-13 1982-04-21 Victor Co Of Japan Ltd Reproducing device for rotary information recording medium
JPS57105828A (en) * 1980-12-19 1982-07-01 Matsushita Electric Ind Co Ltd Optical disk recording and reproducing system
JPS57120272A (en) * 1981-01-14 1982-07-27 Victor Co Of Japan Ltd Reproducing device for discoid information recording medium
JPS57130240A (en) * 1981-02-05 1982-08-12 Olympus Optical Co Ltd Optical information recording and reproducing device and information recording medium for it
JPS57150173A (en) * 1981-03-12 1982-09-16 Victor Co Of Japan Ltd Reproducer for disc shape information recording medium
JPS57167172A (en) * 1981-04-07 1982-10-14 Victor Co Of Japan Ltd High density information recording and reproducing system
US4491877A (en) * 1981-05-09 1985-01-01 Pioneer Video Corporation Cross-talk detector in information-carrying disc player
JPS57186237A (en) * 1981-05-12 1982-11-16 Pioneer Video Corp Crosstalk eliminating device for recorded information reproducing device
JPS5812170A (ja) * 1981-07-14 1983-01-24 Victor Co Of Japan Ltd 円盤状情報記録媒体再生装置のジツタ補正回路
JPS5832274A (ja) * 1981-08-18 1983-02-25 Victor Co Of Japan Ltd 円盤状情報記録媒体再生装置のフイ−ド送り速度切換回路
JPS5853281A (ja) * 1981-09-26 1983-03-29 Victor Co Of Japan Ltd 円盤状情報記録媒体再生装置
US4443870A (en) * 1981-10-15 1984-04-17 Burroughs Corporation Optical memory system providing track following
DE3239857C2 (de) * 1981-10-27 1986-12-18 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Spursteuervorrichtung für eine Abtastvorrichtung
JPS59161555U (ja) * 1983-04-14 1984-10-29 日本ビクター株式会社 トラツキングサ−ボ回路
US4660100A (en) * 1983-05-12 1987-04-21 Victor Company Of Japan, Ltd. Rotary recording medium reproducing apparatus for reproducing pre-recorded signals from a rotary recording medium having track turns recorded with digital signal and track turns recorded with analog signal
US4827466A (en) * 1984-04-02 1989-05-02 Victor Company Of Japan, Ltd. Information signal recording medium electrostatic capacitance type
NL193159C (nl) * 1985-06-19 1998-12-04 Hitachi Ltd Voorgevormde registratiedrager voor het daarin met behulp van een lichtvlek schrijven van informatie.
JPS6260174A (ja) * 1985-09-10 1987-03-16 Mitsubishi Electric Corp デ−タ記録方法
JPH0354975A (ja) * 1989-03-30 1991-03-08 Victor Co Of Japan Ltd 静電潜像記録素子及び／又は再生素子

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Publication number Priority date Publication date Assignee Title
DE1881314U (de) * 1960-04-20 1963-10-24 Wilhelm Dr Ing Lepper Mikro-lichtspur-schalltraeger.
US3438050A (en) * 1965-01-06 1969-04-08 Itek Corp Laser data recorder
US3624284A (en) * 1966-09-01 1971-11-30 Battelle Development Corp Photographic record of digital information and playback system including optical scanner
US3593331A (en) * 1969-01-31 1971-07-13 Ncr Co Magnetic disc calibration track with diminishing apertures
US3673412A (en) * 1970-03-02 1972-06-27 Trw Inc Radiant energy beam scanning method and apparatus
GB1410015A (en) * 1971-12-16 1975-10-15 Emi Ltd Record transcription devices
JPS526609B2 (fr) * 1972-01-17 1977-02-23
US3826877A (en) 1972-09-06 1974-07-30 Rca Corp Information playback system stylus
US3872241A (en) * 1973-07-12 1975-03-18 Zenith Radio Corp Video disc pickup with capacitive tracking
US3919697A (en) * 1974-06-26 1975-11-11 Battelle Development Corp Data record tracking using track identifying information in the gaps between recorded data groups
CA1067997A (fr) * 1974-07-15 1979-12-11 Jacob De Boer Servomecanisme de positionnement de tete de lecture
GB1524032A (en) * 1974-11-18 1978-09-06 Rca Corp Video disc stylus
DE2615838C2 (de) * 1976-04-10 1985-02-07 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung zur Positionsregelung eines Schreib-Lesekopfes für Datenträger mit einer Magnetspeicherschicht

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2384317A1 (fr) * 1977-02-09 1978-10-13 Victor Company Of Japan Dispositif d'enregistrement, notamment de signaux d'information, sur des supports tournants
FR2415403A1 (fr) * 1978-01-20 1979-08-17 Victor Company Of Japan Dispositif de reproduction pour appareil permettant de reproduire des signaux video enregistres sur un support d'enregistrement tournant
FR2489996A1 (fr) * 1980-09-09 1982-03-12 Victor Company Of Japan Circuit de detection de signaux periodiques dans un appareil reproducteur
FR2490437A1 (fr) * 1980-09-12 1982-03-19 Victor Company Of Japan Circuit de detection d'un signal periodique pour appareil de reproduction
FR2496953A1 (fr) * 1980-12-22 1982-06-25 Victor Company Of Japan Appareil de reproduction d'un support d'enregistrement tournant
FR2504301A1 (fr) * 1981-04-15 1982-10-22 Thomson Csf Support d'informations mobile et dispositif d'enregistrement-lecture comprenant un tel support
FR2509506A1 (fr) * 1981-05-18 1983-01-14 Victor Company Of Japan Dispositif de reproduction de signaux d'adresse pour un appareil de reproduction de support d'enregistrement tournant
FR2513789A1 (fr) * 1981-09-25 1983-04-01 Victor Company Of Japan Support d'enregistrement tournant
FR2523349A1 (fr) * 1982-03-12 1983-09-16 Thomson Csf Procede et dispositif optique de generation de signaux d'asservissements de la position d'une tache d'exploration des pistes d'un support d'information
EP0089274A1 (fr) * 1982-03-12 1983-09-21 Thomson-Csf Support optique d'informations, dispositif de suivi de piste et dispositif optique de génération d'un signal d'erreur de focalisation
US4562564A (en) * 1982-03-12 1985-12-31 Thomson-Csf Process and optical device for generating signals controlling the position of a scanning spot of the tracks of a data carrier
FR2613865A1 (fr) * 1982-03-12 1988-10-14 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
EP0369989A2 (fr) * 1982-03-12 1990-05-23 Thomson-Csf Support d'information mobile prégravé et dispositif optique de suivi de piste mettant en oeuvre un tel support
EP0369989A3 (en) * 1982-03-12 1990-06-27 Thomson-Csf Pre-engraved mobile record carrier and optical tracking device therefor
EP0089816A2 (fr) * 1982-03-18 1983-09-28 Sony Corporation Appareil pour commander la position de piste d'une tête dans un appareil d'enregistrement ou de reproduction d'information
EP0089816A3 (en) * 1982-03-18 1985-12-18 Sony Corporation Apparatus for controlling the tracking position of a head in an apparatus for recording or reproducing information
FR2536932A1 (fr) * 1982-11-25 1984-06-01 Sony Corp Systeme de cinema video utilisant un code de commande, lu en mode de lecture pour commander automatiquement la mise au point, les dimensions de l'ecran ou autres parametres
FR2543347A1 (fr) * 1983-03-23 1984-09-28 Xerox Corp Systeme suiveur de piste pour commande de disque optique

Also Published As

Publication number Publication date
DE2715573A1 (de) 1977-10-20
CA1130456A (fr) 1982-08-24
US4331976A (en) 1982-05-25
NL185738C (nl) 1990-07-02
NL7703865A (nl) 1977-10-11
FR2347743B1 (fr) 1982-07-02
FR2492569A1 (fr) 1982-04-23
DE2759993C2 (fr) 1987-09-03
FR2492569B1 (fr) 1984-11-30
GB1585546A (en) 1981-03-04
DE2715573C2 (de) 1984-08-30

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