JPS6177172A - Magnetic head positioning system of magnetic medium - Google Patents

Magnetic head positioning system of magnetic medium

Info

Publication number
JPS6177172A
JPS6177172A JP19664984A JP19664984A JPS6177172A JP S6177172 A JPS6177172 A JP S6177172A JP 19664984 A JP19664984 A JP 19664984A JP 19664984 A JP19664984 A JP 19664984A JP S6177172 A JPS6177172 A JP S6177172A
Authority
JP
Japan
Prior art keywords
magnetic head
magnetic
data
track
medium
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
Application number
JP19664984A
Other languages
Japanese (ja)
Inventor
Arahiro Kahara
渦原　新浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19664984A priority Critical patent/JPS6177172A/en
Publication of JPS6177172A publication Critical patent/JPS6177172A/en
Pending legal-status Critical Current

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
    • G11B5/48—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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To eliminate positional deviation of a magnetic head and improve interchangeability of the magnetic medium and reliability of data by providing a part in which positioning signals of magnetic head are written in the magnetic medium. CONSTITUTION:When reading data in a data track 3 or writing data in it, track number of the data track 3 is set in a magnetic head position controlling circuit 9, and a magnetic head 5 is shifted to the position of the data track 3 by a magnetic head driving circuit 8. When the magnetic head 5 is in the side of a magnetic track position adjusting signal writing track 2 due to the history of the magnetic medium, signals of magnetic head position adjusting signal writing tracks 2, 4 are reproduced by magnetic heard position detecting heads on both ends of the magnetic head, and applied to a signal level comparator circuit 7. The magnetic head 5 is shifted to the track 4 side by the magnetic head driving circuit 8 according to the output signal, and the head is positioned at the center of the data track 3.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、磁気記録再生系において、特に磁気媒体、磁
気記録再生装置の互換性を保ち、磁気記録再生データの
信頼性を向上させることに関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a magnetic recording/reproducing system, in particular to maintaining compatibility of a magnetic medium and a magnetic recording/reproducing device, and improving reliability of magnetically recorded/reproduced data. It is.

〔発明の背景〕[Background of the invention]

従来、記憶容量の少ない磁気記録再生装置において、磁
気ヘッドの位置決めは、磁気ヘッド駆動装置のみで行な
っていた。また精度的にも磁気ヘッド（データ読み書き
ヘッド）の両端にデータ消去へラドを設け、トラック方
向にデータの記録されていない部分を作シ磁気ヘッド位
置ずれによるデータ読み誤りに対し余裕をもたせていた
ため、磁気媒体に記録されたデータの位置による磁気ヘ
ッドの位置決めについては配慮されていなかった。なお
、この種の方式に関連するものには、例えば特開昭５９
−５４０２９　　号。Conventionally, in a magnetic recording/reproducing device with a small storage capacity, positioning of a magnetic head has been performed only by a magnetic head drive device. In addition, in terms of accuracy, a data eraser was installed at both ends of the magnetic head (data read/write head) to erase areas where no data was recorded in the track direction, allowing for margin against data reading errors due to positional deviation of the magnetic head. However, no consideration was given to the positioning of the magnetic head based on the position of data recorded on the magnetic medium. Incidentally, related to this type of method, for example, Japanese Patent Application Laid-open No. 59
-54029 No.

同５９−５４０３１　　号が挙げられる。No. 59-54031 is mentioned.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、磁気ヘッドと磁気媒体が密着してデー
タの記録再生を行なう系において磁気媒体に磁気ヘッド
位置決め信号を書き込んだ部分を設けることによυ、磁
気ヘッドの位置ずれをなくし磁気媒体の互換性およびデ
ータの信頼性を向上させることにある。An object of the present invention is to eliminate misalignment of the magnetic head by providing a portion on the magnetic medium in which a magnetic head positioning signal is written in a system in which a magnetic head and a magnetic medium are in close contact with each other to record and reproduce data. The goal is to improve compatibility and data reliability.

〔発明の概要〕[Summary of the invention]

従来の磁気ヘッド位置決めは、磁気ヘッド駆動装置によ
って決められていたため、データの記録位置は、磁気媒
体が最初にデータを書がれた磁気記録再生装置の磁気ヘ
ッド位置にのみ依存し、他の磁気記録再生装置に、この
磁気媒体を装着した場合、磁気記録再生装置間のバラツ
キによシ、データの書かれた位置とデータを読み出す磁
気ヘッドの位置がずれを生じる。このずれが大きいとデ
ータの読み誤シを生じ、何度データを読み返しても磁気
ヘッドは、位置ずれを生じたままで補正することは不可
能であった。Conventional magnetic head positioning was determined by a magnetic head drive device, so the data recording position depended only on the magnetic head position of the magnetic recording/reproducing device where the data was first written on the magnetic medium, and When this magnetic medium is installed in a recording/reproducing apparatus, due to variations between magnetic recording/reproducing apparatuses, the position where data is written and the position of the magnetic head from which the data is read may deviate. If this deviation is large, erroneous data reading occurs, and no matter how many times the data is read, the magnetic head remains in positional deviation and cannot be corrected.

そこで、本考案では、データの記録された磁気媒体のデ
ータ位置に応じて、磁気ヘッド自体の位置を補正すれば
、データの読み＃Ａシはなくなるという点に着目した。Therefore, in the present invention, attention has been focused on the point that if the position of the magnetic head itself is corrected according to the data position of the magnetic medium on which data is recorded, data reading #A can be eliminated.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

本実施例は、フロッピーディスクを例にとったものであ
る。This embodiment takes a floppy disk as an example.

磁気媒体１０の微小部分１１において、データトラック
５のデータを読み出す、あるいはデータを書き込む場合
、先ず磁気ヘッド５を磁気媒体１０の最外周へ磁気へヴ
ド駆動回路８によって移動させ磁気ヘッド位置制御回路
９のトラック番号を初期設定する。次に、データトラッ
ク３のトラック番号を磁気へ、シト位置制御回路９に設
定し、磁気ヘッド駆動回路８によりて磁気ヘッド５をデ
ータトラック３の位置へ移動させる。When reading or writing data on the data track 5 in the minute portion 11 of the magnetic medium 10, first the magnetic head 5 is moved to the outermost circumference of the magnetic medium 10 by the magnetic head drive circuit 8, and the magnetic head position control circuit Initialize track number 9. Next, the track number of the data track 3 is set to magnetic in the seat position control circuit 9, and the magnetic head drive circuit 8 moves the magnetic head 5 to the position of the data track 3.

この時、磁気媒体１０の来歴により、データトラ、ツク
３に対して、磁気ヘッド５が磁気ヘッド位置調整信号書
き込みトラック２側にある場合、磁気ヘッド５の両端に
ある磁気ヘッド位置検出ヘッドによって磁気ヘッド位置
調整信号書込みトラック２，４の信号を各々再生し、信
号レベル比較回路７に加える。そして、その出力信号を
磁気ヘッド駆動回路８に加え、出力信号の大小によシ磁
気ヘヅド５を磁気ヘッド位置調整信号書込みトラック４
側へ移動させ、データトラック３の中央に位置させる。At this time, due to the history of the magnetic medium 10, if the magnetic head 5 is on the magnetic head position adjustment signal writing track 2 side with respect to the data track 3, the magnetic head position detection heads at both ends of the magnetic head 5 The signals of the head position adjustment signal writing tracks 2 and 4 are respectively reproduced and applied to the signal level comparison circuit 7. Then, the output signal is applied to the magnetic head drive circuit 8, and depending on the magnitude of the output signal, the magnetic head 5 is moved to the magnetic head position adjustment signal writing track 4.
Move it to the side and position it at the center of the data track 3.

磁気ヘッド５の移動停止後データ記録再生回路６により
、データトラック５のデータを読み出す、あるいはデー
タを書き込む。After the magnetic head 5 stops moving, the data recording/reproducing circuit 6 reads or writes data on the data track 5.

本実施例によれば、どの様な来歴の磁気媒体も磁気ヘッ
ドの位置ずれによるデータ読み誤りは、大幅に減少する
という効果がある。According to this embodiment, data reading errors due to misalignment of the magnetic head can be significantly reduced regardless of the history of the magnetic medium.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、磁気ヘッドの位置ずれによるデータの
読みｖ４υは、大幅に減少し、さらに記録密度を向上さ
せられるため記憶密量は、大喝に増大するとｈう効果が
ある。According to the present invention, the data reading v4v due to the positional deviation of the magnetic head is significantly reduced, and the recording density is further improved, so that the storage density can be greatly increased.

【図面の簡単な説明】[Brief explanation of the drawing]

図は、磁気媒体（７０ツピ、−ディスク）と磁気ヘッド
の位置関係および磁気ヘッドの位置制御図である。 １．３・・・データトラック ２．４・・・磁気ヘッド位置調整信号書込みトラック５
・・・磁気ヘッド（磁気ヘッド位置検出ヘッド）６・・
・データ記録再生回路 ７・・・２．４の信号レベル比較回路 ８・・・磁気ヘッド駆ｌｔＩ＋回路 ９・・・磁気ヘッド位置制御回路 代唐人昶士高橋明夫 手続補正書（方式） １１塾件の表示 昭和５９年特許願第　１９６６４９　　吋発明の名称 臨気媒捧の磁気へ７ド７位ｌ決々六入 捕正をする者 １Ｉ１１との帆に　特許出願人 ？・　　杓・　　　　５１１１１１．ｉ式会＋ｌ：　　
　［Ｊ　　　立　　製　　作　　折代　　　理　　　人 ｌ）：所　　　　〒１（１）東京都千代田区丸の内−丁
目５番１号株式会Ｈ日ずｊ製作所内　電話　・５・・２
１２１１１１ｔ人代ム）図面 「＃Ｉ、１凶は磁気ｉ体（７”ツビーディスク）を示す
平圓図、第２図は磁気媒体と磁気ヘット°の位置関係お
よび泣直制御を行なうための構成を示す１０１２図であ
る。」 Ｚ　図面を別紙のとおり訂正する。 以上The figure is a diagram showing the positional relationship between a magnetic medium (70 disks) and a magnetic head, and the position control of the magnetic head. 1.3...Data track 2.4...Magnetic head position adjustment signal writing track 5
...Magnetic head (magnetic head position detection head) 6...
・Data recording and reproducing circuit 7...2.4 signal level comparison circuit 8...Magnetic head drive ltI+ circuit 9...Magnetic head position control circuit representative Shoji Tojin Akio Takahashi procedural amendment (method) 11 matters Indication of 1981 Patent Application No. 196649 2. Name of the Invention To the Magnetism of the Temperature Medium 7 Do 7 Place L Determined 6 Input Capturer 1I11 and the Sails Patent Applicant?・Ladle・511111. i ceremony + l:
[J Standing Manufacturer Oriyo Management Person L): Address: 1 (1) 5-1 Marunouchi-chome, Chiyoda-ku, Tokyo, H-Hizuj Manufacturing Co., Ltd. Telephone: ・5・・2
121111t) Drawing "#I, 1st figure is a flat circle diagram showing the magnetic body (7" disk), and Figure 2 shows the positional relationship between the magnetic medium and the magnetic head and the configuration for performing direct control. It is a 1012 diagram showing. ”Z Correct the drawing as shown in the attached sheet. that's all

Claims (1)

【特許請求の範囲】[Claims] 磁気媒体と密着する磁気ヘッドと磁気ヘッド駆動装置と
磁気媒体より成るシステムにおいて、磁気媒体上に磁気
ヘッド位置決め信号を設けたことを特徴とする磁気媒体
の磁気ヘッド位置決め方式A magnetic head positioning method for a magnetic medium, characterized in that a magnetic head positioning signal is provided on the magnetic medium in a system consisting of a magnetic head in close contact with the magnetic medium, a magnetic head drive device, and the magnetic medium.
JP19664984A 1984-09-21 1984-09-21 Magnetic head positioning system of magnetic medium Pending JPS6177172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19664984A JPS6177172A (en) 1984-09-21 1984-09-21 Magnetic head positioning system of magnetic medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19664984A JPS6177172A (en) 1984-09-21 1984-09-21 Magnetic head positioning system of magnetic medium

Publications (1)

Publication Number Publication Date
JPS6177172A true JPS6177172A (en) 1986-04-19

Family

ID=16361284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19664984A Pending JPS6177172A (en) 1984-09-21 1984-09-21 Magnetic head positioning system of magnetic medium

Country Status (1)

Country Link
JP (1) JPS6177172A (en)

Similar Documents

Publication Publication Date Title
US5825578A (en) Method and apparatus for compensating track position due to written-in runout error in a disc drive
US5606469A (en) Method for correcting offset in a magnetic disk including apparent offtrack cancellation
JPH0440790B2 (en)
US6768605B2 (en) Flexible disk device, disk formatting method, and recording/reproducing method
US5754354A (en) Magnetic disk drive unit with complex magnetic head of variable reading width
JP2943837B2 (en) Magnetic disk drive using data surface servo method
JPH1145524A (en) Disk device, track positioning method and position error signal generating method
JPS6177172A (en) Magnetic head positioning system of magnetic medium
JPS59218678A (en) Recording medium and track following method of said recording medium
EP0356938B1 (en) Rotary head assembly for substantially concurrent recording and monitoring of data on a magnetic tape cassette or the like
JP2639064B2 (en) Magnetic disk and magnetic disk device
JPS60117461A (en) Magnetic disc device
JP3074767B2 (en) Rotating head drum
JPS61294673A (en) Correction system for magnetic head position of magnetic recorrding and reproducing device
JP2576509B2 (en) Data recorder
JPS60117460A (en) Magnetic disc device
JPH09106635A (en) Data recording and reproducing apparatus and seek control in the same apparatus
JPH03280275A (en) Magnetic recording and reproducing device
JPS61264508A (en) Magnetic disc device
JPS61264569A (en) Magnetic disc device
JPH11232812A (en) Magnetic disk storage device
JPS62259264A (en) Recording and reproducing system for magnetic card reader
JPH06236504A (en) Magnetic recording and reproducing device
JPH0833976B2 (en) Recording and playback device
JPS6391883A (en) Magnetic disk device