JPS623608U - - Google Patents
Info
- Publication number
- JPS623608U JPS623608U JP9445385U JP9445385U JPS623608U JP S623608 U JPS623608 U JP S623608U JP 9445385 U JP9445385 U JP 9445385U JP 9445385 U JP9445385 U JP 9445385U JP S623608 U JPS623608 U JP S623608U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- control device
- detected
- position counter
- tape control
- 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
- 230000007547 defect Effects 0.000 claims description 2
- 230000002950 deficient Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000013102 re-test Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 1
Landscapes
- Digital Magnetic Recording (AREA)
Description
第１図はこの考案の一実施例による磁気テープ
制御装置の構成図、第２図はこの考案の磁気テー
プ制御方式による再生行列を説明する図、第３図
は従来の磁気テープ制御装置の構成図、第４図は
従来の磁気テープ制御方式による再試行例を説明
する図、である。
２は磁気テープ、３は記録再生ヘツド、６はキ
ヤプスタン、１２はプロセツサ、１８はパルスエ
ンコーダ、２５はテープ位置カウンタ、２６は欠
陥位置カウンタ、である。なお図中、同一符号は
同一、又は相当部分を示す。
FIG. 1 is a block diagram of a magnetic tape control device according to an embodiment of this invention, FIG. 2 is a diagram illustrating a reproduction matrix according to the magnetic tape control method of this invention, and FIG. 3 is a configuration diagram of a conventional magnetic tape control device. FIG. 4 is a diagram illustrating an example of a retry using a conventional magnetic tape control method. 2 is a magnetic tape, 3 is a recording/reproducing head, 6 is a capstan, 12 is a processor, 18 is a pulse encoder, 25 is a tape position counter, and 26 is a defect position counter. In the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
出するとともに、該エラー発生時に消去コマンド
を発行して消去動作した後、書込み再試験を行な
う磁気テープの制御装置において、上記磁気テー
プの欠陥位置を検出する機構と、該検出機構で検
出された欠陥位置まで上記消去動作を継続させる
手段と、を備えたことを特徴とする磁気テープの
制御装置。 (2) 上記検出機構が、上記磁気テープを移動さ
せるキヤプスタンの回転数を積算する手段と、上
記書込みエラーが検知された時点での上記積算値
を保持する手段と、から成る実用新案登録請求の
範囲第１項記載の磁気テープの制御装置。 (3) 上記積算手段が、パルスエンコーダと磁気
テープ位置カウンタとから成る実用新案登録請求
の範囲第２項記載の磁気テープの制御装置。 (4) 上記積算値保持手段が、上記書込み時の読
込みを行う手段と、該手段が上記書込みエラーを
検出したことを検出するプロセツサと、該プロセ
ツサにより上記エラー検出時にカウント停止する
欠陥位置カウンタと、から成る実用新案登録請求
の範囲第３項記載の磁気テープの制御装置。 (5) 上記読込み手段が、記録再生ヘツドと、リ
ードアンプ回路と、リードデータ復調回路と、か
ら成る実用新案登録請求の範囲第４項記載の磁気
テープの制御装置。 (6) 上記消去動作継続手段が、上記磁気テープ
位置カウンタが上記欠陥位置カウンタに等しくな
るまで消去動作を継続するものである実用新案登
録請求の範囲第４項記載の磁気テープの制御装置
。[Scope of Claim for Utility Model Registration] (1) In a magnetic tape control device that detects write errors while reading and checking them, issues an erase command when the error occurs, performs an erase operation, and then performs a write retest. A control device for a magnetic tape, comprising: a mechanism for detecting a defective position on a magnetic tape; and means for continuing the erasing operation up to the defective position detected by the detecting mechanism. (2) A claim for utility model registration in which the detection mechanism comprises means for accumulating the number of rotations of a capstan that moves the magnetic tape, and means for holding the accumulated value at the time when the writing error is detected. A magnetic tape control device according to scope 1. (3) The magnetic tape control device according to claim 2, wherein the integrating means comprises a pulse encoder and a magnetic tape position counter. (4) The integrated value holding means includes means for reading at the time of writing, a processor for detecting that the means has detected the writing error, and a defect position counter that stops counting when the error is detected by the processor. A magnetic tape control device according to claim 3 of the utility model registration claim. (5) The magnetic tape control device according to claim 4, wherein the reading means includes a recording/reproducing head, a read amplifier circuit, and a read data demodulation circuit. (6) The magnetic tape control device according to claim 4, wherein the erasing operation continuation means continues the erasing operation until the magnetic tape position counter becomes equal to the defective position counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9445385U JPS623608U (en) | 1985-06-24 | 1985-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9445385U JPS623608U (en) | 1985-06-24 | 1985-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS623608U true JPS623608U (en) | 1987-01-10 |
Family
ID=30652994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9445385U Pending JPS623608U (en) | 1985-06-24 | 1985-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS623608U (en) |
-
1985
- 1985-06-24 JP JP9445385U patent/JPS623608U/ja active Pending
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