DE2918259A1 - Verfahren und vorrichtung zum beseitigen der remanenten auslenkung in einer piezokeramischen kopfhalterung eines video-rekorders - Google Patents
Verfahren und vorrichtung zum beseitigen der remanenten auslenkung in einer piezokeramischen kopfhalterung eines video-rekordersInfo
- Publication number
- DE2918259A1 DE2918259A1 DE19792918259 DE2918259A DE2918259A1 DE 2918259 A1 DE2918259 A1 DE 2918259A1 DE 19792918259 DE19792918259 DE 19792918259 DE 2918259 A DE2918259 A DE 2918259A DE 2918259 A1 DE2918259 A1 DE 2918259A1
- Authority
- DE
- Germany
- Prior art keywords
- piezoceramic
- signal
- holder
- oscillating signal
- during
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 6
- 206010044565 Tremor Diseases 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 18
- 230000004044 response Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
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- 230000001960 triggered effect Effects 0.000 description 2
- 101100286286 Dictyostelium discoideum ipi gene Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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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
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792918259 DE2918259A1 (de) | 1979-05-07 | 1979-05-07 | Verfahren und vorrichtung zum beseitigen der remanenten auslenkung in einer piezokeramischen kopfhalterung eines video-rekorders |
| FR7911792A FR2456365A1 (fr) | 1979-05-07 | 1979-05-09 | Procede et dispositif d'annulation de la deviation remanente du support de tete en ceramique piezoelectrique d'un enregistreur de signaux video et leur application aux magnetoscopes |
| NL7903691A NL7903691A (nl) | 1979-05-07 | 1979-05-10 | Videobandapparaat. |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792918259 DE2918259A1 (de) | 1979-05-07 | 1979-05-07 | Verfahren und vorrichtung zum beseitigen der remanenten auslenkung in einer piezokeramischen kopfhalterung eines video-rekorders |
| FR7911792A FR2456365A1 (fr) | 1979-05-07 | 1979-05-09 | Procede et dispositif d'annulation de la deviation remanente du support de tete en ceramique piezoelectrique d'un enregistreur de signaux video et leur application aux magnetoscopes |
| NL7903691A NL7903691A (nl) | 1979-05-07 | 1979-05-10 | Videobandapparaat. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2918259A1 true DE2918259A1 (de) | 1980-11-20 |
| DE2918259C2 DE2918259C2 (enrdf_load_stackoverflow) | 1988-12-08 |
Family
ID=27188019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792918259 Granted DE2918259A1 (de) | 1979-05-07 | 1979-05-07 | Verfahren und vorrichtung zum beseitigen der remanenten auslenkung in einer piezokeramischen kopfhalterung eines video-rekorders |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2918259A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2456365A1 (enrdf_load_stackoverflow) |
| NL (1) | NL7903691A (enrdf_load_stackoverflow) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2712504A1 (de) * | 1976-03-22 | 1977-10-06 | Ampex | Daten-aufzeichnungs- und wiedergabegeraet |
| DE2757400A1 (de) * | 1976-12-23 | 1978-06-29 | Sony Corp | Geraet zum aufnehmen und wiedergeben von videosignalen |
| US4165521A (en) * | 1975-10-14 | 1979-08-21 | Sony Corporation | Video signal reproducing system with moveable head for slow or stop tracking control |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB879824A (en) * | 1959-12-22 | 1961-10-11 | Gen Ultrasonics Company | Autopolarization of electrostrictive transducers |
| US4106065A (en) * | 1976-03-19 | 1978-08-08 | Ampex Corporation | Drive circuitry for controlling movable video head |
| GB1560023A (en) * | 1976-10-05 | 1980-01-30 | Sony Corp | Automatic magnetic-head scan tracking arrangements |
| JPS54127306A (en) * | 1978-03-27 | 1979-10-03 | Sony Corp | Tape recorder |
| NL7805804A (nl) * | 1978-05-29 | 1979-12-03 | Philips Nv | Inrichting voor het aanleggen van een stuurspanning over een pieezo-elektrisch positioneringselement. |
-
1979
- 1979-05-07 DE DE19792918259 patent/DE2918259A1/de active Granted
- 1979-05-09 FR FR7911792A patent/FR2456365A1/fr active Granted
- 1979-05-10 NL NL7903691A patent/NL7903691A/nl not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4165521A (en) * | 1975-10-14 | 1979-08-21 | Sony Corporation | Video signal reproducing system with moveable head for slow or stop tracking control |
| DE2712504A1 (de) * | 1976-03-22 | 1977-10-06 | Ampex | Daten-aufzeichnungs- und wiedergabegeraet |
| DE2757400A1 (de) * | 1976-12-23 | 1978-06-29 | Sony Corp | Geraet zum aufnehmen und wiedergeben von videosignalen |
Non-Patent Citations (2)
| Title |
|---|
| Lynse, P.C., Bartel, L.C.: "Electromechanical response of PZT 65/35 subjected to axial shock loading" In: Journal of Applied Physics, Vol. 46, Nr. 1, Januar 1975, S. 222-229 * |
| Poole, N.J.: "Effects of ageing and compressive stress on the properties of Batioceramics" In: Journal of Physics D: Appl. Phys., Vol. 8, 1975, S. 1140-1148 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2918259C2 (enrdf_load_stackoverflow) | 1988-12-08 |
| FR2456365A1 (fr) | 1980-12-05 |
| FR2456365B1 (enrdf_load_stackoverflow) | 1984-02-10 |
| NL7903691A (nl) | 1980-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |