JPS6446201A - Reproducing system of thin film magnetic head - Google Patents
Reproducing system of thin film magnetic headInfo
- Publication number
- JPS6446201A JPS6446201A JP20255887A JP20255887A JPS6446201A JP S6446201 A JPS6446201 A JP S6446201A JP 20255887 A JP20255887 A JP 20255887A JP 20255887 A JP20255887 A JP 20255887A JP S6446201 A JPS6446201 A JP S6446201A
- Authority
- JP
- Japan
- Prior art keywords
- nonlinearity
- center tap
- amplitude
- possessed
- circuit
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
Landscapes
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To decrease waveform distortions without providing a center tap to a magneto-resistance effect element (MR element) by using a nonlinear circuit having the nonlinearity of the reverse characteristic acting complementarily on the nonlinearity possessed by the resistivity/external magnetic field of the MR element which is not provided with the center tap. CONSTITUTION:The nonlinear circuit 7 having the nonlinearity of the reverse characteristic acting complementarily on the nonlinearity possessed by the characteristic curve of the MR element which is not provided with the center tap is provided. The intensity of the magnetic field acts on the MR element 1 connected to a current source circuit 3 and the distortion waveform which contains the DC component and is vertically asymmetrical in amplitude in correspondence to the nonlinearity of the rho-H curve possessed by the MR element 1 is blocked of the DC component by a capacitor 5 and is amplified to a required level by a preamplifier 6. The waveform is then passed in the nonlinear circuit 7 having the nonlinearity of the reverse characteristic which acts complementarily. The vertical asymmetry of the amplitude is thereby reverse corrected and is made approximately into symmetry. The reduction of the vertical asymmetry of the amplitude in the MR head of a two terminal type having no center tap within the circuit is thereby enabled and the signal quality at the time of signal reproduction is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20255887A JPS6446201A (en) | 1987-08-12 | 1987-08-12 | Reproducing system of thin film magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20255887A JPS6446201A (en) | 1987-08-12 | 1987-08-12 | Reproducing system of thin film magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6446201A true JPS6446201A (en) | 1989-02-20 |
Family
ID=16459486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20255887A Pending JPS6446201A (en) | 1987-08-12 | 1987-08-12 | Reproducing system of thin film magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6446201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004024372A1 (en) | 2002-09-10 | 2004-03-25 | Nikko Materials Co., Ltd. | Metal powder for powder metallurgy and iron-based sintered compact |
-
1987
- 1987-08-12 JP JP20255887A patent/JPS6446201A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004024372A1 (en) | 2002-09-10 | 2004-03-25 | Nikko Materials Co., Ltd. | Metal powder for powder metallurgy and iron-based sintered compact |
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