JPS63153703A - Magnetic recording method - Google Patents
Magnetic recording methodInfo
- Publication number
- JPS63153703A JPS63153703A JP30007886A JP30007886A JPS63153703A JP S63153703 A JPS63153703 A JP S63153703A JP 30007886 A JP30007886 A JP 30007886A JP 30007886 A JP30007886 A JP 30007886A JP S63153703 A JPS63153703 A JP S63153703A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- recording
- data
- track
- orientation
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 230000005415 magnetization Effects 0.000 abstract description 7
- 230000003405 preventing effect Effects 0.000 abstract description 5
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は磁気記録トラックの磁気配向の方向が該トラッ
ク方向に対して一定角度を有する磁気記録媒体の記録方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording method for a magnetic recording medium in which the direction of magnetic orientation of a magnetic recording track is at a constant angle with respect to the direction of the track.
［従来技術］
第２図は、従来の磁気記録方法を説明するための磁気カ
ードの模式図である。[Prior Art] FIG. 2 is a schematic diagram of a magnetic card for explaining a conventional magnetic recording method.
同図において、テレフォンカード等の磁気カード１は、
データトラック２の長手方向（矢印Ａ方向）に磁気配向
がなされている。そして、配向方向Ａに対して若干の角
度δをもってアジマス記録され（書込み方向Ｂ）、トラ
ンク２の垂直方向より傾いたデータビットパターン３が
形成されている：
このようにアジマス記録を行うことによって、トラック
２の垂直方向にギャップを有する通常の？１１１％へ７
１’ではデータの読取りが不可能となり、データの偽造
改ざん防止効果を高めている。In the figure, a magnetic card 1 such as a telephone card is
The data track 2 is magnetically oriented in the longitudinal direction (direction of arrow A). Then, azimuth recording is performed at a slight angle δ with respect to orientation direction A (writing direction B), forming a data bit pattern 3 that is inclined from the vertical direction of trunk 2: By performing azimuth recording in this way, Normal with vertical gap in track 2? 7 to 111%
1' makes it impossible to read the data, increasing the effect of preventing data forgery and tampering.
［発明が解決しようとする問題点］
しかしながら、上記従来の記録方法では、書込み方向Ｂ
が配向方向Ａに対して斜めになっているために、残留磁
化が不安定となり、また読取り出力が低下してしまうと
いう問題点を有していた。[Problems to be Solved by the Invention] However, in the above conventional recording method, the writing direction B
is oblique with respect to the orientation direction A, resulting in unstable residual magnetization and lower reading output.
そのために角度δの範囲が大きく制限され、データビッ
トパターンの傾きを任意に設定することができなかった
。Therefore, the range of the angle δ is greatly limited, and the inclination of the data bit pattern cannot be set arbitrarily.
［問題点を解決するための手段］
本発明による磁気記録方法は、磁気記録トランクの磁気
配向の方向が該トランク方向に対して一定角度を有し、
該配向方向と一致して記録再生用の磁界を印加すること
を特徴とする。[Means for Solving the Problems] The magnetic recording method according to the present invention is characterized in that the direction of magnetic orientation of the magnetic recording trunk has a certain angle with respect to the trunk direction,
It is characterized in that a magnetic field for recording and reproduction is applied in alignment with the orientation direction.
［作用コ
このように磁気記録トラックの配向方向と記録による残
留磁化の方向とが一致するために、読取り出力の低下が
なく、また残留磁化も安定となる。[Operation] Since the orientation direction of the magnetic recording track and the direction of residual magnetization due to recording match in this manner, there is no drop in read output and the residual magnetization is also stable.
〔実施例コ
以下、本発明の実施例を図面を参照しながら詳細に説明
する。[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は、本発明による磁気記録方法の一実施例の説明
図である。FIG. 1 is an explanatory diagram of an embodiment of the magnetic recording method according to the present invention.
同図において、磁気記録媒体である磁気カード１０１に
はデータトラック１０２が設けられ、その磁気の配向方
向Ａはデータトラック１０２の長手方向に対して角度θ
を有している。In the figure, a data track 102 is provided on a magnetic card 101 that is a magnetic recording medium, and the magnetic orientation direction A thereof is at an angle θ with respect to the longitudinal direction of the data track 102.
have.
このような磁気カード１０１を矢印Ｃ方向に搬送するこ
とで磁気ヘッド１０４により各データトラック１０２を
走査し、データビットパターン１０３を形成する。By conveying such a magnetic card 101 in the direction of arrow C, each data track 102 is scanned by the magnetic head 104 and a data bit pattern 103 is formed.
磁気ヘッド１０４のへラドギャップ１０５は、配向方向
Ａに対して垂直に設けられているために、配向方向Ａと
一致した方向でデータの書込み又は読取りが行われ、記
録ビットである残留磁化の安定化および読取り出力の低
下防止が達成される。このような磁気へラド１０４には
アジマスヘッド等を用いればよい。Since the spacing gap 105 of the magnetic head 104 is provided perpendicularly to the alignment direction A, data is written or read in a direction that coincides with the alignment direction A, and the residual magnetization of the recorded bits is stabilized. This achieves prevention of deterioration of reading power and reading power. An azimuth head or the like may be used for such a magnetic head 104.
また、配向方向Ａと一致した方向で記録が行われるため
に、データトラック１０２の長手方向に対して大きな傾
斜をもったデータビットパターン１０３を形成すること
も容易となり、データ偽造改ざん防止の効果を更に高め
ることができる。Furthermore, since recording is performed in a direction that coincides with the orientation direction A, it is easy to form a data bit pattern 103 that has a large inclination with respect to the longitudinal direction of the data track 102, which improves the effect of preventing data forgery and tampering. It can be further increased.
［発明の効果］
以上詳細に説明したように、本発明による磁気記録方法
は、磁気記録トラックの配向方向と記録による残留磁化
の方向とが一致するために、読取り出力の低下がなく、
また残留磁化も安定となり、磁気記録の信頼性が向上す
る。また高密度記録に有効である。[Effects of the Invention] As explained in detail above, in the magnetic recording method according to the present invention, since the orientation direction of the magnetic recording track and the direction of residual magnetization due to recording coincide, there is no decrease in read output.
In addition, residual magnetization becomes stable, improving the reliability of magnetic recording. It is also effective for high-density recording.
さらに広角度のアジマス記録が可能となるために、偽造
改ざん防止効果を高めることができる。Furthermore, since wide-angle azimuth recording becomes possible, the effect of preventing forgery and tampering can be enhanced.
第１図は５本発明による磁気記録方法の一実施例の説明
図、
第２図は、従来の磁気記録方法を説明するための磁気カ
ードの模式図である。
１０１舎Φ・磁気カード
１０２・ｅ・データトラック
１０３・・・データビットパターン
１０４自Φ・磁気ヘッド
１０５・・・ヘッドキャップ
Ａ−拳書磁気配向方向
代理人 弁理士 山 下 穣 子
弟１図
第２図FIG. 1 is an explanatory diagram of an embodiment of the magnetic recording method according to the present invention, and FIG. 2 is a schematic diagram of a magnetic card for explaining the conventional magnetic recording method. 101 Φ・Magnetic card 102・e・Data track 103...Data bit pattern 104 Self Φ・Magnetic head 105...Head cap A - Handwritten magnetic orientation direction Agent Patent attorney Jo Yamashita Child 1 Figure 2 figure
Claims (1)
向に対して一定角度を有し、該配向方向と一致して記録
再生用の磁界を印加することを特徴とする磁気記録方法
。(1) A magnetic recording method characterized in that the magnetic orientation direction of a magnetic recording track has a certain angle with respect to the track direction, and a magnetic field for recording and reproduction is applied in alignment with the orientation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30007886A JPS63153703A (en) | 1986-12-18 | 1986-12-18 | Magnetic recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30007886A JPS63153703A (en) | 1986-12-18 | 1986-12-18 | Magnetic recording method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63153703A true JPS63153703A (en) | 1988-06-27 |
Family
ID=17880438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30007886A Pending JPS63153703A (en) | 1986-12-18 | 1986-12-18 | Magnetic recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63153703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5450737A (en) * | 1993-03-04 | 1995-09-19 | Takigen Manufacturing Co., Ltd. | Removable lock handle assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921123A (en) * | 1972-06-14 | 1974-02-25 |
-
1986
- 1986-12-18 JP JP30007886A patent/JPS63153703A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921123A (en) * | 1972-06-14 | 1974-02-25 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5450737A (en) * | 1993-03-04 | 1995-09-19 | Takigen Manufacturing Co., Ltd. | Removable lock handle assembly |
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