JPS5870445A - Magnetic tape storage device - Google Patents
Magnetic tape storage deviceInfo
- Publication number
- JPS5870445A JPS5870445A JP56167903A JP16790381A JPS5870445A JP S5870445 A JPS5870445 A JP S5870445A JP 56167903 A JP56167903 A JP 56167903A JP 16790381 A JP16790381 A JP 16790381A JP S5870445 A JPS5870445 A JP S5870445A
- Authority
- JP
- Japan
- Prior art keywords
- writing
- magnetic tape
- data
- signal
- tape
- 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
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
- G11B15/08—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、データ処理装置等で使用される磁気テープ記
憶装置に関し、特に磁気テープの不良個所をスキップす
るための制御方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic tape storage device used in a data processing device and the like, and particularly to a control method for skipping defective parts of a magnetic tape.
従来の磁気テープ記憶装置は、磁気テープそのものの物
理的寿欠陥（テープの折れ、シンチング。Conventional magnetic tape storage devices suffer from physical longevity defects (tape bending, shinching, etc.) in the magnetic tape itself.
コーティングｍ］不良等）を検出する機能を備えていな
い。従って、磁気テープの欠陥個所にもその１まデータ
を書き込んでしまうという欠点がある。It does not have a function to detect coating defects, etc.). Therefore, there is a drawback that data is written even to a defective part of the magnetic tape.
テープの欠陥個所に書き込まれたデータによりデータ誤
りが発生することを防止するために、従来は磁気テープ
にデータを書き込む場合に、書き込んだデータを直後に
読出してチェックするというリード・アフタ・ライト・
チェックにより磁気テープ上に何らかの欠陥があると判
断して再データ書込み処理を行々い磁気テープ上の該当
個所をスキップし止しいデータを書き込む方式が採用さ
れている。しかし、そのためには、データ引込み誤シが
逆読取りによるテープボジショニング可能々ものである
必要がある。例えば極端々間違いの場合等は、テープボ
ジショニングが不可能でｈ’）、磁気テープ全体が媒体
不良として処理さｔｌ、その後使用することができない
。また、スキップおよび再書込みのためにテープの巻戻
し処理等複雑々制御が必要であるという欠点がある。さ
らに再試行処理時に誤った位置ヘポジショニングするこ
とによシネ良データを生成するおそれもある。In order to prevent data errors from occurring due to data written to defective areas on a tape, conventional read-after-write methods were used to read and check the written data immediately after writing data to a magnetic tape.
A method is adopted in which it is determined through a check that there is some kind of defect on the magnetic tape, and the data is rewritten to write data that is unlikely to be skipped at the corresponding location on the magnetic tape. However, in order to do so, it is necessary that data pull-in errors can be reversed to position the tape. For example, in the case of an extreme error, tape positioning is impossible (h'), the entire magnetic tape is treated as a medium defect, and cannot be used thereafter. Another drawback is that complicated controls such as tape rewinding processing are required for skipping and rewriting. Furthermore, there is a possibility that good cine data may be generated due to positioning to an incorrect position during retry processing.
本発明の目的は、上述の従来の欠点を解決し、磁気テー
プの欠陥をデータ書込み直前に検出し、欠陥個所を含む
相当長をイレーズ状態にしてスキップすることにより欠
陥個所へのデータ書込みを防止することができる４ｆθ
気テ一プ記憶装面を提供することにある。The purpose of the present invention is to solve the above-mentioned conventional drawbacks, detect defects in magnetic tape just before data is written, and prevent data from being written to the defective areas by erasing and skipping a considerable length that includes the defective areas. 4fθ that can be
The purpose of the present invention is to provide a tape memory device.
本発明の記憶装置に、磁気テープの走行面を照射する投
光器と、該投光器からの投射光が前記磁気テープの走行
面で反射された反射光を受光する受光器と、該受光器の
出力信号により磁気テープの物理的な欠陥を検出する欠
陥検出部とを備えて、該欠陥検出部の出力により前記磁
気テープへの書 ゛込みを禁止しテープの欠陥個所を
含む相当長をイレーズ状態にしてスキップすることを特
徴とする。The storage device of the present invention includes a light projector that illuminates a running surface of a magnetic tape, a light receiver that receives reflected light that is obtained by reflecting light projected from the light projector on the running surface of the magnetic tape, and an output signal of the light receiver. and a defect detection unit that detects physical defects in the magnetic tape, and according to the output of the defect detection unit, writing to the magnetic tape is prohibited and a considerable length of the tape including the defective part is erased. Characterized by skipping.
次に、本発明について、図面を参照して詳細に説明する
。Next, the present invention will be explained in detail with reference to the drawings.
第１図は、本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
す々わち、上位装置間インタフェース１によって、上位
装Ｍ（Ｖ／ＩＪえばデータ処理装置）から送られた書込
みデータおよび書込み命令が書込み／読取り情報転送制
御部２に入力すると、磁気テープ記憶装置制御部１６は
ギヤプスタン１８を起動すると共に磁気テープ欠陥検出
＋ｉｉ＋ １＜かＣ）の欠陥検出信号１５の監視動作に
入７．１ｏ甘た、テープ走行が一定速度に達すると、磁
気テープ１１１１億１ノ。That is, when write data and write commands sent from the host device M (data processing device in the case of V/IJ) are input to the write/read information transfer control unit 2 through the host device interface 1, the magnetic tape storage device The control unit 16 activates the gap stan 18 and starts the monitoring operation of the defect detection signal 15 of the magnetic tape defect detection + ii + 1 < or C). of.
置制御部１６の制Ｗ１１１により前記屓１込み／ ｊＰ
７１ｊ取り情報制御部２から書込みデータＩＮＮ月：３
がつ′−タ書込み制御部４に送出される。）Ｕ込み制御
ｌｌ 童−ＣＩ（４ｉｊ：、磁気テープ記憶装置ｆｌｉ
制御部１６の出力するデータ書込み制御部制御信号１０
によりＪ＝ Ｍｌ’：再込みデータ信号を磁気データ１
込み１１９号５にづゑゝ換して磁気テープヘッド６に供
給する。しかし、ｒｉｆｔ ？１： ４ｉ？’＆気テ一
プ記憶装置制御部１６が以前のデータ書込み命令処理時
における欠陥検出Ｍ ”ｉ Ｉ ５を保イ１していると
きは、磁気テープ配憶装置制御Ｔｉ１ｔ １６ ｉ１前
ｄ１２書込み制御部４の磁気データ書込み信号５の送出
を禁止し、代りにイレーズ４ｊ５号１７（ｒ−送出さ−
Ｖる。According to the control W111 of the position control unit 16, the above-mentioned
71j Write data from information control unit 2 INN Month: 3
The data is sent to the data write control section 4. ) U-integrated control ll Child-CI (4ij:, magnetic tape storage device fli
Data write control unit control signal 10 output from the control unit 16
J = Ml': Rewrite data signal to magnetic data 1
119 No. 5 and is supplied to the magnetic tape head 6. But rift? 1: 4i? '& When the tape storage device control unit 16 maintains the defect detection M ``i I 5 at the time of processing the previous data write command, the magnetic tape storage device control Ti1t 16 i1 previous d12 write control The transmission of the magnetic data write signal 5 of the unit 4 is prohibited, and the erase 4j No. 5 17 (r-sending-
Vru.
磁気テープヘッド６ｉｔ上記磁気データ■込みイＮ号５
又はイレーズ信号１７により磁気テープ２０にデータを
書き込みｊだ１相当長をスキップすＺ、。Magnetic tape head 6it above magnetic data ■Include No. 5
Or write data on the magnetic tape 20 using the erase signal 17 and skip a length corresponding to one length.
読取りのときけ、磁気テープヘッド６から出力された磁
気データ６り色取りイｉコ号７を読取シ制御部８に入力
させ、読取り制御部８は、磁気テープ記憶装Ｍ−１６の
制御信号９−＃によって上記読取り信号を書込み／読取
り情報転送制御部２およびインターフェースｌを介して
上位装荷へ送出する。At the time of reading, the magnetic data 6 and coloring number 7 outputted from the magnetic tape head 6 are inputted to the reading controller 8, and the reading controller 8 receives the control signal of the magnetic tape storage device M-16. 9-#, the read signal is sent to the host device via the write/read information transfer control unit 2 and interface l.
−万、前述の書込み動作時において、走行中のテープ２
０のベース面側を投光器１１によって照射し、その反射
光を受光器１２で電気信号１３に変換する。電気信号１
３はテープ２０の反射光に応じた出力でおり、テープに
欠陥がないときけ一定値を保っている。しかし、テープ
の折れ、シンチング、コーテイング面不良等の物理的欠
陥があるときけ、電気信号１３に変動を生じる。磁気テ
ープ欠陥検出部１４け電気信号１３が一定範囲にないと
ぎ、又は電気信号１３の急変等の検出により磁気テープ
の欠陥と判断し、て欠陥検出信号１５を出力する。第２
図は、−上述のテープ面１照射位置Ａと磁気ヘッド６の
位置との関係を示す。磁気テープ２０はテープガイド１
９に案内されてヘッド６に当接しガからギヤプスタン１
８Ｖｔ″よって矢印方向に走行する。ヘッド６のギャッ
プが磁気テープに当接する位置Ｂに対して図中イｊ側の
位ＩＺｔ Ａにおいて投光器１１０投光を反射し、受光
器１２で受光する。上記位置Ａ 、 ８間の距１１１ｆ
ｆ、 （ｔ、ｔ 、 書込み可能最大ブロック長より大
である。従って、書込み命令前において、以前の書込み
処理時に欠陥検出信号が出力されていガいとき＆：Ｔ
、テープ−］−の位置Ａ、Ｂ間には欠陥がないことが確
認されている。- 10,000, during the above write operation, the tape 2 in progress
A light emitter 11 illuminates the base surface side of the 0, and a light receiver 12 converts the reflected light into an electrical signal 13. electrical signal 1
3 is an output corresponding to the reflected light from the tape 20, and it maintains a constant value as long as there is no defect in the tape. However, if there is a physical defect such as folding of the tape, cinching, or defective coating surface, the electric signal 13 will fluctuate. The magnetic tape defect detection unit 14 determines that there is a defect in the magnetic tape by detecting that the electric signal 13 is not within a certain range or a sudden change in the electric signal 13, and outputs a defect detection signal 15. Second
The figure shows the relationship between the above-mentioned irradiation position A on the tape surface 1 and the position of the magnetic head 6. The magnetic tape 20 is the tape guide 1
9 and comes into contact with the head 6, and the gear press stan 1
8Vt'', it travels in the direction of the arrow.The light emitted by the light emitter 110 is reflected at a position IZt A on the A side in the figure with respect to the position B where the gap of the head 6 contacts the magnetic tape, and the light is received by the light receiver 12. Distance 111f between positions A and 8
f, (t, t is larger than the maximum writable block length. Therefore, before the write command, if a defect detection signal was output during the previous write process, &:T
It has been confirmed that there are no defects between positions A and B of the tape -]-.
このＳ会は直ちに書込みを開始しても書込みブロック内
にテープの欠陥１ｄ’ ｆｆｔいから＋Ｅ Ｌ〜いデー
タの書込みが可能である。以前の書込み処理時に欠陥検
出信号が出さねているときは、データの書込みが禁止さ
れ、代りにイレーズ（＝’”３によって相当長がスキッ
プされる。スギツブは、欠陥検出信号が消滅してからテ
ープかＡ、８間の距閉１だ＆−）走行する壕で打力われ
、その後磁気データ１込み信号５によってデータが曹き
込まれる。」二連の制御は（第１図の）前記磁気テープ
記憶装置制御 ＠Ｉｆ １６によって行なわれる。り前
のデータ書込み処理中に欠陥検出信号１５が出されたと
き、データ書込み終了後に、更に欠陥イ小出信号１５が
消滅してからテープがＡ、 Ｂ間の距離だけ走行する寸
でイレーズ信号１７を送出してスギツブ処理を済１せて
おけば、次の書込み命令によって直ちに書込み動作を行
なうことができる。この場合は、磁気テープ記憶装置６
制御部１６ Ｂ 、り前の欠陥検出信号を保有してれ−
か々くて良い７１以上のように、テープ欠陥部のスギツ
ブ制御の方法は各独者えられるが、要するに欠陥部を含
んだ相当長をスキップするようにすれば良い３゜
第３図および第４図（弓、投光器１１および受光２ま１
２を示す胴祝し１である。投光器１ ］ ＆：、ｔ、複
数の発光素子２１を一列に配列し、受光器１２は複数の
受光素子２２を一列に配列している。発光素子２１のそ
ハそれと、受光素子２２のそれぞれとけ１対Ｉ Ｔ対応
し、そわぞれテープ面子の１つのトラック位置に対応す
る。すなわち複数のトラックを有する磁気テープの欠陥
検出が可能である。Even if this S group starts writing immediately, it is possible to write data in the write block because there is a tape defect 1d'fft. If the defect detection signal has not been output during the previous write process, data writing is prohibited and a considerable length is skipped by erasing (='”3). The distance between the tape A and 8 is 1 &-) is struck by the traveling groove, and then the data is read in by the magnetic data 1 included signal 5. Magnetic Tape Storage Control @If 16 performs this. When the defect detection signal 15 is issued during the data writing process before data writing, the erase signal is issued when the tape has traveled the distance between A and B after the defect detection signal 15 disappears after the data writing is completed. If 17 is sent and the subprocessing process is completed, the write operation can be performed immediately by the next write command. In this case, the magnetic tape storage device 6
The control unit 16B retains the previous defect detection signal.
As mentioned above, each person can find their own way to control the tape defects, but in short, it is enough to skip a considerable length that includes the defective part. Figure 4 (bow, emitter 11 and light receiver 2 or 1)
This is the body celebration 1 which indicates the number 2. Light emitter 1] &:, t, a plurality of light emitting elements 21 are arranged in a line, and a light receiver 12 has a plurality of light receiving elements 22 arranged in a line. Each of the light-emitting elements 21 and the light-receiving element 22 correspond to each other, and each corresponds to one track position on the tape surface. That is, it is possible to detect defects in magnetic tapes having multiple tracks.
以上のように、本発明においては、磁気テープの貞込み
前に、テープからの反射光によって物理的欠陥を検出し
、欠陥個所を含む相当長に対してデータを書き込むこと
を未然に防１１−するように構成したから、磁気テープ
の書込みＪｉｅ４シをなくし、信頼度を向上させるとい
う効果がある。貰だ、データの再書込み処理等の＋Ｍ１
４１な操作が不要であシ、簡単な構成で提供できる。As described above, in the present invention, physical defects are detected by light reflected from the tape before the magnetic tape is inserted, and data is prevented from being written to a considerable length including the defective part. Since it is configured to do so, it has the effect of eliminating magnetic tape writing and improving reliability. I got it, +M1 for data rewriting processing, etc.
41 operations are not required and can be provided with a simple configuration.
第１図は本発明の一実施し０を示すブロック図で多）す
、第２図は上記実施しリにおける磁気テープの照射位ｆ
ｉｆｆｉとヘッド位１６′との関係をンドす図、第３図
は上記実施し１１における投光器を示−ｒ６ｉ’ｆ ：
ｔｌｌ、図、第４図は」−記実施例における受光器を示
す斜視図である。
図にお・いて、１・・・インタフニス、２・・・１４込
み／読取り情報転送制御部、３・・・書込みデータ信号
、４・・・書込み制御部、５・・・磁気データ１込み信
号、６・・・磁気テープヘッド、７・・・磁気データ読
取り信号、８・・・読取り制御Ｍ（＋、９・・・データ
読取り制御部制御信号、１０・・・データ書込み制御部
制御信号、１１・・・投光器、１２・・・受光器、１３
・・・電気信号、１４・・・磁気テープ欠陥検出部、１
５・・・欠陥検出信号、１６・・・磁気テープ記憶装置
制御部、１７・・・イレーズ信号、１８・・・キャプス
タン、１９・・・テープガイド、２ｏ・・・磁気テープ
、２１・・・発光素子、２２・・・受光素子。
代理人 弁理士 住 １）俊 筆FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing the irradiation position f of the magnetic tape in the above embodiment.
FIG. 3 is a diagram showing the relationship between iffi and the head position 16', and shows the projector in the above embodiment 11.
FIG. 4 is a perspective view showing the light receiver in the embodiment described above. In the figure, 1...Interface, 2...14 write/read information transfer control section, 3...Write data signal, 4...Write control section, 5...Magnetic data 1 write signal , 6... Magnetic tape head, 7... Magnetic data read signal, 8... Read control M(+, 9... Data read control section control signal, 10... Data write control section control signal, 11... Emitter, 12... Light receiver, 13
. . . Electrical signal, 14 . . . Magnetic tape defect detection unit, 1
5... Defect detection signal, 16... Magnetic tape storage device control unit, 17... Erase signal, 18... Capstan, 19... Tape guide, 2o... Magnetic tape, 21... - Light emitting element, 22... Light receiving element. Agent Patent Attorney Sumi 1) Shun Fude
Claims (1)
の投射光が前記磁気テープの走行面で反射された反射光
を受光する受光器と、該受光器の出力信号により磁気テ
ープの物理的な欠陥を検出する欠陥検出部とを備えて、
該欠陥検出部の出力により前記磁気テープへの書込みを
禁止しテープの欠陥個所を含む相当長をイレーズ状態に
してスキップすることを特徴とする磁気テープ記憶装置
。A light projector that illuminates the running surface of the magnetic tape; a light receiver that receives reflected light from the light projector that is reflected by the running surface of the magnetic tape; and an output signal from the light receiver that detects the physical and a defect detection section that detects defects,
A magnetic tape storage device characterized in that writing to the magnetic tape is inhibited based on the output of the defect detection unit, and a considerable length of the tape including the defective portion is set in an erased state and skipped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56167903A JPS5870445A (en) | 1981-10-22 | 1981-10-22 | Magnetic tape storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56167903A JPS5870445A (en) | 1981-10-22 | 1981-10-22 | Magnetic tape storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5870445A true JPS5870445A (en) | 1983-04-26 |
Family
ID=15858183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56167903A Pending JPS5870445A (en) | 1981-10-22 | 1981-10-22 | Magnetic tape storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5870445A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183455A (en) * | 1989-01-09 | 1990-07-18 | Nec Corp | Magnetic tape processor |
| JPH0492239A (en) * | 1990-08-06 | 1992-03-25 | Excel:Kk | Flaw detecting method for tape of video tape or the like and device used in the same |
| EP0666567A1 (en) * | 1994-02-03 | 1995-08-09 | Koninklijke Philips Electronics N.V. | Arrangement for determining the write quality during magnetic recording |
| US8630058B2 (en) | 2010-03-31 | 2014-01-14 | Fujitsu Limited | Drive apparatus, library apparatus, and control method thereof |
-
1981
- 1981-10-22 JP JP56167903A patent/JPS5870445A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183455A (en) * | 1989-01-09 | 1990-07-18 | Nec Corp | Magnetic tape processor |
| JPH0492239A (en) * | 1990-08-06 | 1992-03-25 | Excel:Kk | Flaw detecting method for tape of video tape or the like and device used in the same |
| EP0666567A1 (en) * | 1994-02-03 | 1995-08-09 | Koninklijke Philips Electronics N.V. | Arrangement for determining the write quality during magnetic recording |
| US8630058B2 (en) | 2010-03-31 | 2014-01-14 | Fujitsu Limited | Drive apparatus, library apparatus, and control method thereof |
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