CA1134506A - Magnetic head tracking control system - Google Patents
Magnetic head tracking control systemInfo
- Publication number
- CA1134506A CA1134506A CA000334976A CA334976A CA1134506A CA 1134506 A CA1134506 A CA 1134506A CA 000334976 A CA000334976 A CA 000334976A CA 334976 A CA334976 A CA 334976A CA 1134506 A CA1134506 A CA 1134506A
- Authority
- CA
- Canada
- Prior art keywords
- transducer
- signal
- tracks
- deflecting
- producing
- 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.)
- Expired
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 21
- 239000011295 pitch Substances 0.000 claims description 100
- 230000000875 corresponding effect Effects 0.000 claims description 34
- 230000010355 oscillation Effects 0.000 claims 4
- 230000004044 response Effects 0.000 abstract description 4
- 239000000306 component Substances 0.000 description 13
- 235000021251 pulses Nutrition 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 4
- 241000479907 Devia <beetle> Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- SFNPDDSJBGRXLW-UHFFFAOYSA-N (3-methylsulfanylbutan-2-ylideneamino) n-methylcarbamate Chemical compound CNC(=O)ON=C(C)C(C)SC SFNPDDSJBGRXLW-UHFFFAOYSA-N 0.000 description 1
- ODPOAESBSUKMHD-UHFFFAOYSA-L 6,7-dihydrodipyrido[1,2-b:1',2'-e]pyrazine-5,8-diium;dibromide Chemical compound [Br-].[Br-].C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 ODPOAESBSUKMHD-UHFFFAOYSA-L 0.000 description 1
- 239000005630 Diquat Substances 0.000 description 1
- 241000489861 Maximus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- JCYWCSGERIELPG-UHFFFAOYSA-N imes Chemical class CC1=CC(C)=CC(C)=C1N1C=CN(C=2C(=CC(C)=CC=2C)C)[C]1 JCYWCSGERIELPG-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229940086255 perform Drugs 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP110174/78 | 1978-09-07 | ||
| JP11017478A JPS5538649A (en) | 1978-09-07 | 1978-09-07 | Tracking unit of magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1134506A true CA1134506A (en) | 1982-10-26 |
Family
ID=14528917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000334976A Expired CA1134506A (en) | 1978-09-07 | 1979-09-04 | Magnetic head tracking control system |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4287538A (en, 2012) |
| JP (1) | JPS5538649A (en, 2012) |
| AT (1) | AT382993B (en, 2012) |
| AU (1) | AU530888B2 (en, 2012) |
| BR (1) | BR7905744A (en, 2012) |
| CA (1) | CA1134506A (en, 2012) |
| CH (1) | CH637257A5 (en, 2012) |
| DE (1) | DE2936083A1 (en, 2012) |
| DK (1) | DK149673C (en, 2012) |
| ES (1) | ES483939A1 (en, 2012) |
| FR (1) | FR2435777B1 (en, 2012) |
| GB (1) | GB2030346B (en, 2012) |
| IT (1) | IT1122997B (en, 2012) |
| NL (1) | NL7906680A (en, 2012) |
| SE (1) | SE437092B (en, 2012) |
| SU (1) | SU1068052A3 (en, 2012) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159681A (en) * | 1979-05-31 | 1980-12-11 | Sony Corp | Tracking unit for magnetic head |
| JPS56115084A (en) * | 1980-02-16 | 1981-09-10 | Sony Corp | Video signal reproducer |
| JPS56127925A (en) * | 1980-03-13 | 1981-10-07 | Sony Corp | Tracking device of magnetic head |
| US4485414A (en) * | 1980-07-07 | 1984-11-27 | Ampex Corporation | Servo system for positioning a movable transducing head assembly |
| JPS5727421A (en) * | 1980-07-23 | 1982-02-13 | Sony Corp | Track following device |
| JPS5733431A (en) | 1980-08-06 | 1982-02-23 | Sony Corp | Track following device |
| JPS5750189A (en) * | 1980-09-09 | 1982-03-24 | Sony Corp | Magnetic recording and playback device |
| JPS5780880A (en) * | 1980-11-07 | 1982-05-20 | Sony Corp | Video signal reproducing device |
| JPS57140083A (en) * | 1981-02-24 | 1982-08-30 | Sony Corp | Video signal reproducing device |
| JPS57135583A (en) * | 1981-02-14 | 1982-08-21 | Sony Corp | Video signal reproducing device |
| US4481544A (en) * | 1981-09-18 | 1984-11-06 | Ampex Corporation | Automatic tracking system with apparatus to prevent mistracking by a limited range transducer during stop motion |
| JPS5897984A (ja) * | 1981-12-04 | 1983-06-10 | Sony Corp | 映像信号再生装置 |
| US4544967A (en) * | 1982-04-02 | 1985-10-01 | Ampex Corporation | Automatic scan tracking servo system |
| US4679098A (en) * | 1982-09-17 | 1987-07-07 | Ampex Corporation | Video tape transport servo for variable tape speed control |
| DE3280426T2 (de) * | 1982-09-17 | 1993-05-13 | Ampex | Automatisches positionierungssystem fuer den rotierenden tonkopf in einem magnetbandgeraet fuer aufnahme und wiedergabe. |
| AT376860B (de) * | 1983-03-15 | 1985-01-10 | Philips Nv | System zum wiedergeben von auf einem magnetband gespeicherten informationssignalen |
| JPS6016774A (ja) * | 1983-07-08 | 1985-01-28 | Sony Corp | 映像信号再生装置 |
| JPS60158781A (ja) * | 1984-01-27 | 1985-08-20 | Sony Corp | ビデオテ−プレコ−ダ− |
| KR900000127B1 (ko) * | 1984-05-11 | 1990-01-20 | 마쯔시다덴기산교 가부시기가이샤 | 자기기록 재생장치 |
| US5189572A (en) * | 1984-08-16 | 1993-02-23 | Ampex Corporation | Magnetic control of a transducer signal transfer zone to effect tracking of a path along a record medium |
| JPH0677292B2 (ja) * | 1984-09-28 | 1994-09-28 | ソニー株式会社 | 自動トラツキング装置 |
| US4933784A (en) * | 1988-10-31 | 1990-06-12 | Ampex Corporation | Automatic head position tracking system for video signals recorded in a segmented format |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50103096A (en, 2012) * | 1974-01-23 | 1975-08-14 | ||
| GB1579854A (en) * | 1976-03-19 | 1980-11-26 | Ampex | Method and apparatus for producing time base altered effects in data recording and reproducing apparatus |
| GB1560023A (en) * | 1976-10-05 | 1980-01-30 | Sony Corp | Automatic magnetic-head scan tracking arrangements |
| US4163993A (en) * | 1978-03-23 | 1979-08-07 | Ampex Corporation | Continuous slow motion automatic tracking system |
-
1978
- 1978-09-07 JP JP11017478A patent/JPS5538649A/ja active Granted
-
1979
- 1979-09-04 CA CA000334976A patent/CA1134506A/en not_active Expired
- 1979-09-04 AU AU50543/79A patent/AU530888B2/en not_active Expired
- 1979-09-06 CH CH805579A patent/CH637257A5/fr not_active IP Right Cessation
- 1979-09-06 BR BR7905744A patent/BR7905744A/pt not_active IP Right Cessation
- 1979-09-06 SU SU792818555A patent/SU1068052A3/ru active
- 1979-09-06 ES ES483939A patent/ES483939A1/es not_active Expired
- 1979-09-06 GB GB7930961A patent/GB2030346B/en not_active Expired
- 1979-09-06 NL NL7906680A patent/NL7906680A/nl not_active Application Discontinuation
- 1979-09-06 DK DK372779A patent/DK149673C/da not_active IP Right Cessation
- 1979-09-06 DE DE19792936083 patent/DE2936083A1/de active Granted
- 1979-09-06 US US06/073,246 patent/US4287538A/en not_active Expired - Lifetime
- 1979-09-07 AT AT0592279A patent/AT382993B/de not_active IP Right Cessation
- 1979-09-07 FR FR7922471A patent/FR2435777B1/fr not_active Expired
- 1979-09-07 IT IT25556/79A patent/IT1122997B/it active
- 1979-09-07 SE SE7907460A patent/SE437092B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE7907460L (sv) | 1980-03-08 |
| DK372779A (da) | 1980-03-08 |
| ATA592279A (de) | 1986-09-15 |
| GB2030346A (en) | 1980-04-02 |
| IT7925556A0 (it) | 1979-09-07 |
| SE437092B (sv) | 1985-02-04 |
| US4287538A (en) | 1981-09-01 |
| AU5054379A (en) | 1980-03-13 |
| AU530888B2 (en) | 1983-08-04 |
| CH637257A5 (fr) | 1983-07-15 |
| AT382993B (de) | 1987-05-11 |
| DK149673B (da) | 1986-09-01 |
| DE2936083C2 (en, 2012) | 1988-08-04 |
| DE2936083A1 (de) | 1980-03-27 |
| SU1068052A3 (ru) | 1984-01-15 |
| IT1122997B (it) | 1986-04-30 |
| JPS5538649A (en) | 1980-03-18 |
| ES483939A1 (es) | 1980-04-01 |
| JPS6252991B2 (en, 2012) | 1987-11-09 |
| DK149673C (da) | 1987-05-11 |
| GB2030346B (en) | 1982-11-03 |
| BR7905744A (pt) | 1980-05-20 |
| FR2435777A1 (fr) | 1980-04-04 |
| NL7906680A (nl) | 1980-03-11 |
| FR2435777B1 (fr) | 1985-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |