FR2315142A1 - Transducer head guide system - using additional guide track associated with magnetic recording track - Google Patents
Transducer head guide system - using additional guide track associated with magnetic recording trackInfo
- Publication number
- FR2315142A1 FR2315142A1 FR7518837A FR7518837A FR2315142A1 FR 2315142 A1 FR2315142 A1 FR 2315142A1 FR 7518837 A FR7518837 A FR 7518837A FR 7518837 A FR7518837 A FR 7518837A FR 2315142 A1 FR2315142 A1 FR 2315142A1
- Authority
- FR
- France
- Prior art keywords
- guide
- track
- transducer head
- magnetic recording
- head
- 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
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
-
- 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
- G11B5/012—Recording on, or reproducing or erasing from, magnetic 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
- G11B5/58—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
- G11B5/596—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 disks
- G11B5/59677—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 disks with optical servo tracking
Landscapes
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Abstract
The guide system, for a magnetic transducer head, is used to guide the head relative to a planar recording medium, with one or more magnetic recording tracks for digital or analogue information. It uses one or more guide tracks associated with each of the recording tracks, to allow the head to be guide without contacting the recording medium. The transducer head may be guided optially by one or more light beams which are directed onto the reflective guide track, or the guide track may be transparent to allow the light beams to be detected directly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7518837A FR2315142A1 (en) | 1975-06-17 | 1975-06-17 | Transducer head guide system - using additional guide track associated with magnetic recording track |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7518837A FR2315142A1 (en) | 1975-06-17 | 1975-06-17 | Transducer head guide system - using additional guide track associated with magnetic recording track |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2315142A1 true FR2315142A1 (en) | 1977-01-14 |
FR2315142B1 FR2315142B1 (en) | 1977-12-02 |
Family
ID=9156609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7518837A Granted FR2315142A1 (en) | 1975-06-17 | 1975-06-17 | Transducer head guide system - using additional guide track associated with magnetic recording track |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2315142A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2336766A1 (en) * | 1975-12-26 | 1977-07-22 | Sony Corp | RECORDING MEDIA, ITS MANUFACTURING AND APPLICATION |
FR2347744A1 (en) * | 1976-04-10 | 1977-11-04 | Philips Nv | CARRIER OF INFORMATION EQUIPPED WITH A MAGNETIC STORAGE LAYER AND DEVICE FOR READING OR WRITING OF SUCH CARRIER |
FR2390800A1 (en) * | 1977-05-10 | 1978-12-08 | Philips Nv | MAGNETIC TAPE EQUIPPED WITH OPTICALLY OBSERVABLE MARKS AND PROCESS FOR THE MANUFACTURE OF SUCH TAPE |
EP0097774A2 (en) * | 1982-06-30 | 1984-01-11 | International Business Machines Corporation | Transducing system |
EP0113051A2 (en) * | 1982-12-30 | 1984-07-11 | International Business Machines Corporation | System for position detection on a rotating disk |
WO1985002933A1 (en) * | 1983-12-27 | 1985-07-04 | Ncr Corporation | Magnetic record medium and apparatus and method for tracking the same |
US4633451A (en) * | 1982-06-30 | 1986-12-30 | International Business Machines Corporation | Optical servo for magnetic disks |
US4816939A (en) * | 1986-08-21 | 1989-03-28 | Polaroid Corporation | Magnetic recording media and servo systems using light-transmitting optical gratings |
WO1990004846A1 (en) * | 1988-10-25 | 1990-05-03 | Siemens Aktiengesellschaft | Scanning unit for a magnetic disk |
US5462823A (en) * | 1992-11-16 | 1995-10-31 | Minnesota Mining And Manufacturing Company | Magnetic recording materials provided with a photosensitive layer |
WO2000030079A1 (en) * | 1998-11-13 | 2000-05-25 | Quantum Corporation | Optical apparatus for tracking a magnetic tape |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2335785B (en) | 1998-03-24 | 2002-09-18 | Quantum Corp | Multi-channel magnetic tape system having optical tracking servo |
US6741415B1 (en) | 1999-02-16 | 2004-05-25 | Quantum Corporation | Method of writing servo signal on magnetic tape |
WO2000049605A1 (en) | 1999-02-17 | 2000-08-24 | Quantum Corporation | Method of writing servo signal on magnetic tape |
US6558774B1 (en) | 1999-08-17 | 2003-05-06 | Quantum Corporation | Multiple-layer backcoating for magnetic tape |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1350194A (en) * | 1962-02-05 | 1964-01-24 | Sperry Rand Corp | Device for correctly positioning a transducer with respect to a recording track |
FR1468978A (en) * | 1964-12-21 | 1967-02-10 | Ibm | Positioning system for selective access device |
US3803350A (en) * | 1969-03-17 | 1974-04-09 | J Lemelson | Record card scanning apparatus |
-
1975
- 1975-06-17 FR FR7518837A patent/FR2315142A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1350194A (en) * | 1962-02-05 | 1964-01-24 | Sperry Rand Corp | Device for correctly positioning a transducer with respect to a recording track |
FR1468978A (en) * | 1964-12-21 | 1967-02-10 | Ibm | Positioning system for selective access device |
US3803350A (en) * | 1969-03-17 | 1974-04-09 | J Lemelson | Record card scanning apparatus |
Non-Patent Citations (9)
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2336766A1 (en) * | 1975-12-26 | 1977-07-22 | Sony Corp | RECORDING MEDIA, ITS MANUFACTURING AND APPLICATION |
FR2347744A1 (en) * | 1976-04-10 | 1977-11-04 | Philips Nv | CARRIER OF INFORMATION EQUIPPED WITH A MAGNETIC STORAGE LAYER AND DEVICE FOR READING OR WRITING OF SUCH CARRIER |
FR2390800A1 (en) * | 1977-05-10 | 1978-12-08 | Philips Nv | MAGNETIC TAPE EQUIPPED WITH OPTICALLY OBSERVABLE MARKS AND PROCESS FOR THE MANUFACTURE OF SUCH TAPE |
EP0097774A3 (en) * | 1982-06-30 | 1986-02-05 | International Business Machines Corporation | Transducing system |
EP0097774A2 (en) * | 1982-06-30 | 1984-01-11 | International Business Machines Corporation | Transducing system |
US4633451A (en) * | 1982-06-30 | 1986-12-30 | International Business Machines Corporation | Optical servo for magnetic disks |
EP0113051A2 (en) * | 1982-12-30 | 1984-07-11 | International Business Machines Corporation | System for position detection on a rotating disk |
EP0113051A3 (en) * | 1982-12-30 | 1986-09-03 | International Business Machines Corporation | System for position detection on a rotating disk |
WO1985002933A1 (en) * | 1983-12-27 | 1985-07-04 | Ncr Corporation | Magnetic record medium and apparatus and method for tracking the same |
US4816939A (en) * | 1986-08-21 | 1989-03-28 | Polaroid Corporation | Magnetic recording media and servo systems using light-transmitting optical gratings |
WO1990004846A1 (en) * | 1988-10-25 | 1990-05-03 | Siemens Aktiengesellschaft | Scanning unit for a magnetic disk |
US5462823A (en) * | 1992-11-16 | 1995-10-31 | Minnesota Mining And Manufacturing Company | Magnetic recording materials provided with a photosensitive layer |
WO2000030079A1 (en) * | 1998-11-13 | 2000-05-25 | Quantum Corporation | Optical apparatus for tracking a magnetic tape |
Also Published As
Publication number | Publication date |
---|---|
FR2315142B1 (en) | 1977-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |