JPS5750318A - Multielement magnetic head - Google Patents
Multielement magnetic headInfo
- Publication number
- JPS5750318A JPS5750318A JP12629480A JP12629480A JPS5750318A JP S5750318 A JPS5750318 A JP S5750318A JP 12629480 A JP12629480 A JP 12629480A JP 12629480 A JP12629480 A JP 12629480A JP S5750318 A JPS5750318 A JP S5750318A
- Authority
- JP
- Japan
- Prior art keywords
- bias
- terminal
- track
- boundaries
- tracks
- 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.)
- Pending
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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3945—Heads comprising more than one sensitive element
- G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
- G11B5/3958—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition
- G11B5/3961—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3945—Heads comprising more than one sensitive element
- G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
- G11B5/3958—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition
- G11B5/3961—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement
- G11B5/3964—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement for transducing on a single track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Magnetic Heads (AREA)
Abstract
PURPOSE:To reduce waveform distortion to improve a signal quality, by arranging terminals of the bias conductor of a three-terminal multielement magnetic head in boundaries and centers of tracks and by supplying the current of the bias conductor from the terminal placed on boundaries between tracks. CONSTITUTION:An MR element 9 is formed into a prescribed form, and an insulating layer is formed on it, and the insulating layer of a center terminal 11 of each track is removed, and a bias conductor 10 is formed on the MR element 9. Resistance RB/2 and RB are connected to the terminal on boundaries between respective tracks and terminals at both ends, and they are connected to a bias power source VB, thereby supplying a bias current. If the center terminal 11 of each track is grounded, the MR element 9 corresponding to each track is separated into two in the center, and separated elements are biased by bias magnetic fields which have an equal magnitude and directions opposite to each other, and the output of the MR element 9 separated into two is amplified differentially to obtain the output of each track. Thus, waveform distortion is reduced to improve a signal quality.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12629480A JPS5750318A (en) | 1980-09-11 | 1980-09-11 | Multielement magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12629480A JPS5750318A (en) | 1980-09-11 | 1980-09-11 | Multielement magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5750318A true JPS5750318A (en) | 1982-03-24 |
Family
ID=14931638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12629480A Pending JPS5750318A (en) | 1980-09-11 | 1980-09-11 | Multielement magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5750318A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59104720A (en) * | 1982-12-07 | 1984-06-16 | Matsushita Electric Ind Co Ltd | Thin film magnetic head |
-
1980
- 1980-09-11 JP JP12629480A patent/JPS5750318A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59104720A (en) * | 1982-12-07 | 1984-06-16 | Matsushita Electric Ind Co Ltd | Thin film magnetic head |
JPH0440775B2 (en) * | 1982-12-07 | 1992-07-06 | Matsushita Electric Ind Co Ltd |
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