FR2398363A1 - Installation de reproduction par faisceau laser de signaux video enregistres sur un disque - Google Patents

Installation de reproduction par faisceau laser de signaux video enregistres sur un disque

Info

Publication number
FR2398363A1
FR2398363A1 FR7821566A FR7821566A FR2398363A1 FR 2398363 A1 FR2398363 A1 FR 2398363A1 FR 7821566 A FR7821566 A FR 7821566A FR 7821566 A FR7821566 A FR 7821566A FR 2398363 A1 FR2398363 A1 FR 2398363A1
Authority
FR
France
Prior art keywords
signals recorded
disk
laser beam
video signals
gain control
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
FR7821566A
Other languages
English (en)
Other versions
FR2398363B1 (fr
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2398363A1 publication Critical patent/FR2398363A1/fr
Application granted granted Critical
Publication of FR2398363B1 publication Critical patent/FR2398363B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/931—Regeneration of the television signal or of selected parts thereof for restoring the level of the reproduced signal

Landscapes

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

Abstract

Installation de reproduction de signaux enregistrés sur un support mobile. Installation caractérisée en ce qu'elle comporte un amplificateur à gain variable en fonction de la fréquence d'un signal qui lui est appliqué pour être amplifié, en étant relié à la sortie du circuit de commande de gain et en recevant le signal de commande gain créé dans la boucle de commande de gain automatique pour en commander le gain variable en fonction du signal de commande de gain ainsi qu'une sortie reliée à l'amplificateur de gain variable pour dériver le signal de lecture dont les variations de niveau sont compensées.
FR7821566A 1977-07-20 1978-07-20 Installation de reproduction par faisceau laser de signaux video enregistres sur un disque Expired FR2398363B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52086999A JPS5948447B2 (ja) 1977-07-20 1977-07-20 信号再生装置の利得補償回路

Publications (2)

Publication Number Publication Date
FR2398363A1 true FR2398363A1 (fr) 1979-02-16
FR2398363B1 FR2398363B1 (fr) 1985-09-20

Family

ID=13902563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821566A Expired FR2398363B1 (fr) 1977-07-20 1978-07-20 Installation de reproduction par faisceau laser de signaux video enregistres sur un disque

Country Status (9)

Country Link
US (1) US4165495A (fr)
JP (1) JPS5948447B2 (fr)
AT (1) AT356928B (fr)
AU (1) AU518805B2 (fr)
CA (1) CA1112360A (fr)
DE (1) DE2831504A1 (fr)
FR (1) FR2398363B1 (fr)
GB (1) GB2001509B (fr)
NL (1) NL7807652A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486272A1 (fr) * 1980-07-03 1982-01-08 Victor Company Of Japan Appareil de lecture d'un support d'enregistrement d'un signal d'information
FR2506981A1 (fr) * 1981-06-01 1982-12-03 Victor Company Of Japan Agencement de circuit destine a un electrophone pour la reproduction d'informations enregistrees prealablement sous la forme de microcuvettes

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813207A1 (de) * 1978-03-25 1979-10-04 Bosch Gmbh Robert System zur korrektur von signalen, welche frequenzmoduliert von einem aufzeichnungstraeger abgenommen werden
JPS5514726A (en) * 1978-07-19 1980-02-01 Hitachi Ltd Magnetic recorder/reproducer
US4459613A (en) * 1979-07-16 1984-07-10 Faroudja Y C Method and apparatus for automatic adjustment with pilot signal of television image processing system
US4340950A (en) * 1979-10-12 1982-07-20 Universal Pioneer Corporation Video disc player
JPS626580Y2 (fr) * 1979-11-17 1987-02-16
US4306257A (en) * 1979-12-21 1981-12-15 Persci, Inc. Processing read-back signals in magnetic disk systems
US4376956A (en) * 1980-10-14 1983-03-15 Rca Corporation Video disc player having timebase correction and constant angular velocity turntable
JPS57120207A (en) * 1981-01-19 1982-07-27 Pioneer Video Corp Reproducing device for multiple-recorded information
JPS5848209A (ja) * 1981-09-14 1983-03-22 Sony Corp 情報信号有無判別回路装置
JPS58124384A (ja) * 1982-01-20 1983-07-23 Sanyo Electric Co Ltd ビデオデイスクプレ−ヤの周波数特性調整回路
JPS58142614A (ja) * 1982-02-18 1983-08-24 Sony Corp 利得制御装置
JPS5930249A (ja) * 1982-08-12 1984-02-17 Canon Inc 光学的情報再生装置
US4525751A (en) * 1982-08-27 1985-06-25 Rca Corporation Disc record with tapered groove
US4565974A (en) * 1984-08-13 1986-01-21 At&T Bell Laboratories Optical receiver circuit with active equalizer
US5247399A (en) * 1989-05-15 1993-09-21 Mitsubishi Denki Kabushiki Kaisha Digital video recording and playback apparatus using different read and write operations for each individual memory
DE69126718T2 (de) * 1990-03-07 1998-01-15 Canon Kk System zum Aufzeichnen und Wiedergeben eines Bildsignals
US5301024A (en) * 1992-12-30 1994-04-05 Zenith Electronics Corp. Video signal peak compressor
US5390053A (en) * 1993-07-22 1995-02-14 Eastman Kodak Company Circuit for controlling the overall upper cutoff frequency of an amplifier stage
US6057976A (en) * 1994-04-28 2000-05-02 Canon Kabushiki Kaisha Apparatus for detecting rotational displacement information of a rotating object
US6362452B1 (en) * 1999-02-04 2002-03-26 Komag, Inc. Patterned laser zone texture
US7484899B2 (en) * 2006-11-01 2009-02-03 The Boeing Company Small-form-factor fiber optic transceiver module having built-in test capability and method
KR20160115223A (ko) * 2015-03-26 2016-10-06 삼성전자주식회사 광학디스크 장치 및 그 제어방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229048A (en) * 1962-07-24 1966-01-11 Rca Corp Recording system
US3643013A (en) * 1970-10-08 1972-02-15 Ampex Dual loop equalization for a frequency modulated signal system
FR2198313A1 (fr) * 1972-05-13 1974-03-29 Sony Corp
FR2261587A1 (fr) * 1974-02-15 1975-09-12 Philips Nv
FR2329122A1 (fr) * 1975-10-23 1977-05-20 Ted Bildplatten Appareil d'enregistrement ou de lecture d'un signal video

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541237A (en) * 1966-10-19 1970-11-17 Fernseh Gmbh Control arrangement for color television

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229048A (en) * 1962-07-24 1966-01-11 Rca Corp Recording system
US3643013A (en) * 1970-10-08 1972-02-15 Ampex Dual loop equalization for a frequency modulated signal system
FR2110302A1 (fr) * 1970-10-08 1972-06-02 Ampex
FR2198313A1 (fr) * 1972-05-13 1974-03-29 Sony Corp
FR2261587A1 (fr) * 1974-02-15 1975-09-12 Philips Nv
FR2329122A1 (fr) * 1975-10-23 1977-05-20 Ted Bildplatten Appareil d'enregistrement ou de lecture d'un signal video

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486272A1 (fr) * 1980-07-03 1982-01-08 Victor Company Of Japan Appareil de lecture d'un support d'enregistrement d'un signal d'information
FR2506981A1 (fr) * 1981-06-01 1982-12-03 Victor Company Of Japan Agencement de circuit destine a un electrophone pour la reproduction d'informations enregistrees prealablement sous la forme de microcuvettes

Also Published As

Publication number Publication date
NL7807652A (nl) 1979-01-23
GB2001509A (en) 1979-01-31
JPS5422120A (en) 1979-02-19
DE2831504C2 (fr) 1990-04-19
US4165495A (en) 1979-08-21
CA1112360A (fr) 1981-11-10
AT356928B (de) 1980-06-10
GB2001509B (en) 1982-01-20
AU518805B2 (en) 1981-10-22
ATA516078A (de) 1979-10-15
FR2398363B1 (fr) 1985-09-20
DE2831504A1 (de) 1979-02-01
JPS5948447B2 (ja) 1984-11-27
AU3807178A (en) 1980-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse