FR2418987A1 - Appareil de reproduction de signaux video comportant un dispositif de commande d'asservissement de poursuite - Google Patents
Appareil de reproduction de signaux video comportant un dispositif de commande d'asservissement de poursuiteInfo
- Publication number
- FR2418987A1 FR2418987A1 FR7905056A FR7905056A FR2418987A1 FR 2418987 A1 FR2418987 A1 FR 2418987A1 FR 7905056 A FR7905056 A FR 7905056A FR 7905056 A FR7905056 A FR 7905056A FR 2418987 A1 FR2418987 A1 FR 2418987A1
- Authority
- FR
- France
- Prior art keywords
- control device
- video signal
- pursuit
- reproducing apparatus
- apparatus including
- 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
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
- G04B37/1446—Means for suspending pocket-, or other types of watches, e.g. on small chains
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
- G04B3/08—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously by parts of the cases
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
- G04F3/02—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with mechanical driving mechanisms
-
- 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
- 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
- G11B5/52—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 simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
a. Appareil de reproduction de signaux vidéo comportant un dispositif de commande d'asservissement de poursuite. b. Appareil caractérisé en ce qu'il comporte un moyen de déviation portant le moyen de reproduction de signal vidéo, ce moyen de déviation comportant plusieurs parties susceptibles d'être déviées respectivement en réponse aux composantes de fréquence relativement différentes d un signal de commande de traçage créé par un générateur de signal de traçage fournissant un signal de commande de traçage ayant des composantes de fréquences relativement différentes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978026378U JPS6125071Y2 (fr) | 1978-03-03 | 1978-03-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2418987A1 true FR2418987A1 (fr) | 1979-09-28 |
FR2418987B1 FR2418987B1 (fr) | 1984-03-16 |
Family
ID=12191846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7905056A Granted FR2418987A1 (fr) | 1978-03-03 | 1979-02-27 | Appareil de reproduction de signaux video comportant un dispositif de commande d'asservissement de poursuite |
Country Status (8)
Country | Link |
---|---|
US (1) | US4251838A (fr) |
JP (1) | JPS6125071Y2 (fr) |
AT (1) | AT374941B (fr) |
CA (1) | CA1124853A (fr) |
DE (1) | DE2908125A1 (fr) |
FR (1) | FR2418987A1 (fr) |
IT (1) | IT1111043B (fr) |
NL (1) | NL7901600A (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54154309A (en) * | 1978-05-25 | 1979-12-05 | Sony Corp | Tracking servo device |
EP0037738B1 (fr) * | 1980-04-08 | 1983-08-17 | Minnesota Mining And Manufacturing Company | Dispositif automatique de commande d'asservissement de tracé pour magnétoscopes à balayage hélicoidal |
JPS56156924A (en) * | 1980-05-08 | 1981-12-03 | Sony Corp | Track following device |
US4470079A (en) * | 1981-02-13 | 1984-09-04 | Victor Company Of Japan, Ltd. | Tracking control system in a magnetic recording and reproducing apparatus |
JPS57203228A (en) * | 1981-06-09 | 1982-12-13 | Sony Corp | Tracking adjuster |
JPS6032110A (ja) * | 1983-08-03 | 1985-02-19 | Victor Co Of Japan Ltd | ヘツド位置制御装置 |
JPS61122960A (ja) * | 1984-11-20 | 1986-06-10 | Hitachi Ltd | 回転シリンダ装置 |
JPS61284820A (ja) * | 1985-06-11 | 1986-12-15 | Alps Electric Co Ltd | ヘツド位置制御方法 |
JPS623408A (ja) * | 1985-06-28 | 1987-01-09 | Pioneer Electronic Corp | 磁気記録再生装置 |
US4706135A (en) * | 1986-01-10 | 1987-11-10 | Tokai Television Broadcasting Company Limited | Video recording apparatus with editing and mixing of delayed monitored video signal using equidistant record, read and erase heads |
AT388822B (de) * | 1987-07-30 | 1989-09-11 | Philips Nv | Magnetkopf |
JP2531241B2 (ja) * | 1988-05-26 | 1996-09-04 | 三菱電機株式会社 | 回転ドラム装置 |
US4933784A (en) * | 1988-10-31 | 1990-06-12 | Ampex Corporation | Automatic head position tracking system for video signals recorded in a segmented format |
EP0591885B1 (fr) * | 1992-10-06 | 1998-01-28 | Matsushita Electric Industrial Co., Ltd. | Dispositif d'actionnement piézoélectrique pour tête |
JP2000298813A (ja) * | 1999-04-09 | 2000-10-24 | Sony Corp | 磁気ヘッド装置並びに信号の書き込み及び/又は読み出し方法 |
US6995956B2 (en) * | 2002-02-28 | 2006-02-07 | Tdk Corporation | Rotary head having an adjustable magnetic head and a magnetic recording/reproducing apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB832608A (en) * | 1955-02-07 | 1960-04-13 | Nat Res Dev | Improvements in or relating to piezo-electric transducers |
GB1328931A (en) * | 1972-03-23 | 1973-09-05 | Creed Co Ltd | Piezoelectric transducer motor arrangement |
FR2293118A1 (fr) * | 1974-11-26 | 1976-06-25 | Sony Corp | Installation de lecture de signaux video |
DE2741217A1 (de) * | 1976-09-13 | 1978-03-16 | Ampex | Bewegliche halterung mit antriebsvorrichtung fuer einen relativ zu einem aufzeichnungstraeger bewegbaren wandler |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126535A (en) * | 1961-12-27 | 1964-03-24 | Transducer positioning system | |
US3663763A (en) * | 1970-04-06 | 1972-05-16 | Ampex | Automatic tracking method and apparatus for rotary scan tape transport |
US4151570A (en) * | 1976-03-22 | 1979-04-24 | Ampex Corporation | Automatic scan tracking using a magnetic head supported by a piezoelectric bender element |
-
1978
- 1978-03-03 JP JP1978026378U patent/JPS6125071Y2/ja not_active Expired
-
1979
- 1979-02-27 FR FR7905056A patent/FR2418987A1/fr active Granted
- 1979-02-28 NL NL7901600A patent/NL7901600A/xx not_active Application Discontinuation
- 1979-03-01 IT IT7920674A patent/IT1111043B/it active
- 1979-03-02 AT AT0161679A patent/AT374941B/de not_active IP Right Cessation
- 1979-03-02 DE DE19792908125 patent/DE2908125A1/de not_active Withdrawn
- 1979-03-02 US US06/016,923 patent/US4251838A/en not_active Expired - Lifetime
- 1979-03-05 CA CA322,770A patent/CA1124853A/fr not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB832608A (en) * | 1955-02-07 | 1960-04-13 | Nat Res Dev | Improvements in or relating to piezo-electric transducers |
GB1328931A (en) * | 1972-03-23 | 1973-09-05 | Creed Co Ltd | Piezoelectric transducer motor arrangement |
FR2293118A1 (fr) * | 1974-11-26 | 1976-06-25 | Sony Corp | Installation de lecture de signaux video |
DE2741217A1 (de) * | 1976-09-13 | 1978-03-16 | Ampex | Bewegliche halterung mit antriebsvorrichtung fuer einen relativ zu einem aufzeichnungstraeger bewegbaren wandler |
Also Published As
Publication number | Publication date |
---|---|
AT374941B (de) | 1984-06-12 |
DE2908125A1 (de) | 1979-09-06 |
NL7901600A (nl) | 1979-09-05 |
FR2418987B1 (fr) | 1984-03-16 |
IT1111043B (it) | 1986-01-13 |
CA1124853A (fr) | 1982-06-01 |
IT7920674A0 (it) | 1979-03-01 |
US4251838A (en) | 1981-02-17 |
JPS6125071Y2 (fr) | 1986-07-28 |
ATA161679A (de) | 1983-10-15 |
JPS54130405U (fr) | 1979-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |