FR2362542A1 - Appareil de reproduction de signaux notamment video - Google Patents
Appareil de reproduction de signaux notamment videoInfo
- Publication number
- FR2362542A1 FR2362542A1 FR7725587A FR7725587A FR2362542A1 FR 2362542 A1 FR2362542 A1 FR 2362542A1 FR 7725587 A FR7725587 A FR 7725587A FR 7725587 A FR7725587 A FR 7725587A FR 2362542 A1 FR2362542 A1 FR 2362542A1
- Authority
- FR
- France
- Prior art keywords
- signal
- magnetic head
- envelope
- reproducing apparatus
- recording
- 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
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
- G11B5/592—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
Abstract
a. Appareil de reproduction de signaux notamment vidéo. b. Appareil caractérisé par un moyen de commande de l'entraînement du moyen de déviation, de façon intermittente, à une distance prédéterminée pendant que la tête magnétique balaie d'une des pistes d'enregistrement, un moyen pour former un premier signal enveloppe d'un signal reproduit par la tête magnétique lorsque la tête magnétique balaie les pistes d'enregistrement, un moyen pour former un second signal d'enveloppe du signal reproduit par la tête magnétique lorsque la tête magnétique balaie l'autre piste d'enregistrement et un moyen pour comparer le premier signal enveloppe et le second signal enveloppe pour creer un signal d'erreur, un moyen pour enregistrer le signal d'erreur et un moyen pour appliquer un signal de commande correspondant au signal d'erreur pour le moyen de déviation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51099962A JPS6030008B2 (ja) | 1976-08-20 | 1976-08-20 | 再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2362542A1 true FR2362542A1 (fr) | 1978-03-17 |
FR2362542B1 FR2362542B1 (fr) | 1982-05-21 |
Family
ID=14261292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7725587A Granted FR2362542A1 (fr) | 1976-08-20 | 1977-08-22 | Appareil de reproduction de signaux notamment video |
Country Status (7)
Country | Link |
---|---|
US (1) | US4148083A (fr) |
JP (1) | JPS6030008B2 (fr) |
CA (1) | CA1089092A (fr) |
DE (1) | DE2737561A1 (fr) |
FR (1) | FR2362542A1 (fr) |
GB (1) | GB1573064A (fr) |
NL (1) | NL7709173A (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2402914A1 (fr) * | 1977-09-08 | 1979-04-06 | Sony Corp | Dispositif de commande asservie d'alignement |
FR2420808A1 (fr) * | 1978-03-23 | 1979-10-19 | Ampex | Mise en position automatique d'une tete transductrice mobile |
FR2474220A1 (fr) * | 1980-01-17 | 1981-07-24 | Victor Company Of Japan | Dispositif de commande de suivi de piste pour un appareil de reproduction magnetique |
FR2493655A1 (fr) * | 1980-11-04 | 1982-05-07 | Victor Company Of Japan | Systeme de detection d'erreur de suivi de piste pour appareil de reproduction magnetique |
EP0051428A1 (fr) * | 1980-11-12 | 1982-05-12 | Sony Corporation | Dispositif d'enregistrement et de reproduction de signaux vidéo |
EP0083958A1 (fr) * | 1982-01-11 | 1983-07-20 | Sony Corporation | Procédé et appareil pour l'enregistrement de trames isolées sur bande vidéo |
EP0129298A2 (fr) * | 1983-06-17 | 1984-12-27 | Koninklijke Philips Electronics N.V. | Système pour reproduire des signaux enregistrés sur une bande magnétique |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4318142A (en) * | 1978-03-23 | 1982-03-02 | Ampex Corporation | Automatically compensated movable head servo circuit and method |
US4308560A (en) * | 1978-03-23 | 1981-12-29 | Ampex Corporation | Method of operating a signal reproducing apparatus for effecting synchronous reproduction of recorded signals |
JPS55102981A (en) * | 1979-01-31 | 1980-08-06 | Matsushita Electric Ind Co Ltd | Rotary-head type magnetic recording and reproducing device |
SU830917A1 (ru) * | 1979-08-16 | 1983-02-07 | Предприятие П/Я Р-6707 | Блок вращающихс магнитных головок |
JPS5683835A (en) * | 1979-12-07 | 1981-07-08 | Matsushita Electric Ind Co Ltd | Tracking device |
JPS5683836A (en) * | 1979-12-10 | 1981-07-08 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS5746318A (en) * | 1980-09-01 | 1982-03-16 | Matsushita Electric Ind Co Ltd | Tracking device |
US4451860A (en) * | 1980-10-09 | 1984-05-29 | Matsushita Electric Industrial Co., Ltd. | Tracking-error correcting system in a video reproducing apparatus |
US4470079A (en) * | 1981-02-13 | 1984-09-04 | Victor Company Of Japan, Ltd. | Tracking control system in a magnetic recording and reproducing apparatus |
JPS62330Y2 (fr) * | 1981-06-11 | 1987-01-07 | ||
JPS58147282A (ja) * | 1982-02-26 | 1983-09-02 | Nec Corp | 特殊再生装置 |
US4525750A (en) * | 1982-09-10 | 1985-06-25 | Rca Corporation | Automatic tracking system for multitrack recorders |
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 |
JPS6083478A (ja) * | 1983-10-14 | 1985-05-11 | Fuji Photo Film Co Ltd | 回転磁気記録体トラツキング装置 |
JPH0614723B2 (ja) * | 1984-07-27 | 1994-02-23 | 株式会社日立製作所 | Vtrのトラツキング制御方式 |
DE3440779A1 (de) * | 1984-11-08 | 1986-05-07 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Anordnung zur einregelung der spurlage bei der wiedergabe magnetisch aufgezeichneter frequenzmodulierter signale |
US4843496A (en) * | 1986-10-29 | 1989-06-27 | Eastman Kodak Company | Track-finding servomechanism utilizing the sampled output of an envelope comparison |
JPH01134501A (ja) * | 1987-11-19 | 1989-05-26 | Fanuc Ltd | Pcのプログラム編集方式 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3155830A (en) * | 1961-06-27 | 1964-11-03 | American Radiator & Standard | Self-searching, self-dithering servo system |
US3126535A (en) * | 1961-12-27 | 1964-03-24 | Transducer positioning system | |
DE1275580B (de) * | 1964-06-25 | 1968-08-22 | Grundig Max | Verfahren und Einrichtung zur Verminderung der Abweichung des Videokopfes von der Aufzeichnungsspur bei der Abtastung von Video-Magnetbandaufzeichnungen |
US3501586A (en) * | 1966-09-01 | 1970-03-17 | Battelle Development Corp | Analog to digital to optical photographic recording and playback system |
US3544718A (en) * | 1967-11-13 | 1970-12-01 | Zenith Radio Corp | Video playback systems |
JPS4920208A (fr) * | 1972-06-16 | 1974-02-22 | ||
JPS5633772B2 (fr) * | 1972-12-20 | 1981-08-06 | ||
DE2306196B1 (de) * | 1973-02-08 | 1974-08-08 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig, 8510 Fuerth | Anordnung zur automatischen Spursuche |
JPS5243362A (en) * | 1975-10-01 | 1977-04-05 | Fujitsu Ltd | Liquid growth method |
-
1976
- 1976-08-20 JP JP51099962A patent/JPS6030008B2/ja not_active Expired
-
1977
- 1977-08-17 GB GB34561/77A patent/GB1573064A/en not_active Expired
- 1977-08-18 NL NL7709173A patent/NL7709173A/xx not_active Application Discontinuation
- 1977-08-19 CA CA285,098A patent/CA1089092A/fr not_active Expired
- 1977-08-19 DE DE19772737561 patent/DE2737561A1/de active Granted
- 1977-08-19 US US05/826,199 patent/US4148083A/en not_active Expired - Lifetime
- 1977-08-22 FR FR7725587A patent/FR2362542A1/fr active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2402914A1 (fr) * | 1977-09-08 | 1979-04-06 | Sony Corp | Dispositif de commande asservie d'alignement |
FR2420808A1 (fr) * | 1978-03-23 | 1979-10-19 | Ampex | Mise en position automatique d'une tete transductrice mobile |
FR2474220A1 (fr) * | 1980-01-17 | 1981-07-24 | Victor Company Of Japan | Dispositif de commande de suivi de piste pour un appareil de reproduction magnetique |
FR2493655A1 (fr) * | 1980-11-04 | 1982-05-07 | Victor Company Of Japan | Systeme de detection d'erreur de suivi de piste pour appareil de reproduction magnetique |
EP0051428A1 (fr) * | 1980-11-12 | 1982-05-12 | Sony Corporation | Dispositif d'enregistrement et de reproduction de signaux vidéo |
EP0083958A1 (fr) * | 1982-01-11 | 1983-07-20 | Sony Corporation | Procédé et appareil pour l'enregistrement de trames isolées sur bande vidéo |
EP0129298A2 (fr) * | 1983-06-17 | 1984-12-27 | Koninklijke Philips Electronics N.V. | Système pour reproduire des signaux enregistrés sur une bande magnétique |
EP0129298A3 (en) * | 1983-06-17 | 1987-07-29 | N.V. Philips' Gloeilampenfabrieken | System for reproducing signals recorded on a magnetic tape |
Also Published As
Publication number | Publication date |
---|---|
GB1573064A (en) | 1980-08-13 |
DE2737561A1 (de) | 1978-02-23 |
DE2737561C2 (fr) | 1988-01-21 |
CA1089092A (fr) | 1980-11-04 |
JPS6030008B2 (ja) | 1985-07-13 |
NL7709173A (nl) | 1978-02-22 |
FR2362542B1 (fr) | 1982-05-21 |
JPS5325408A (en) | 1978-03-09 |
US4148083A (en) | 1979-04-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |