JPS5830658B2 - Data processing method - Google Patents
Data processing methodInfo
- Publication number
- JPS5830658B2 JPS5830658B2 JP50115787A JP11578775A JPS5830658B2 JP S5830658 B2 JPS5830658 B2 JP S5830658B2 JP 50115787 A JP50115787 A JP 50115787A JP 11578775 A JP11578775 A JP 11578775A JP S5830658 B2 JPS5830658 B2 JP S5830658B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- power
- data processing
- processing method
- magnetic
- 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.)
- Expired
Links
Description
【発明の詳細な説明】
従来の磁気テープ装置においては、テープの位置がいか
なる状態であっても電源のオフが可能であるためテープ
磁性部分が読取り部等に露出した１昔外部諸悪条件下へ
釦かれることがあり、これがデーター保持の信頼性低下
を著しくする要因であった。[Detailed Description of the Invention] In conventional magnetic tape devices, the power can be turned off regardless of the position of the tape. This was a factor that significantly reduced the reliability of data retention.
本発明は前記欠点を取シ除き記録データー保持の信頼性
を向上させようとするものである。The present invention aims to eliminate the above-mentioned drawbacks and improve the reliability of recording data retention.
図は本発明の一実施例の概略図であり、Ｔは磁気テープ
でそのＭＴ部は磁性部で不透光性であり、ＬＴｌ、ＬＴ
２はテープリード部で透光性である。The figure is a schematic diagram of an embodiment of the present invention, where T is a magnetic tape, the MT part is a magnetic part and is non-transparent, and LTl, LT
2 is a tape lead portion which is transparent.
ＲＷは読取り、書込み等のためのテープ露出部である。RW is the tape exposure for reading, writing, etc.
Ｌは発光素子、Ｄは受光素子であり、ＴＳＤは受光素子
りからの信号を受けてテープ位置を検知するテープステ
ータデテクター、ＴＤＣｔｊテープ駆動回路Ｍはテープ
駆動用モーター、ＰＣは電源オンオフ制御部である。L is a light emitting element, D is a light receiving element, TSD is a tape stator detector that detects the tape position by receiving a signal from the light receiving element, TDCtj tape drive circuit M is a tape drive motor, and PC is a power on/off control unit. be.
今、テープ位置がＩＪ−ド部ＬＴ、ｔたはＬＴ２が発受
光素子Ｌ−Ｄ間にあるとする。Assume now that the tape position is that IJ-do part LT, t or LT2 is between the light emitting and receiving elements LD.
このとき電源オフスイッチＳ１を操作するとリレースイ
ッチＬＳ１ より電源オフ要求信号ＰＤがアントゲ−１
−Ａ１の一方に印加される。At this time, when the power off switch S1 is operated, the power off request signal PD is sent from the relay switch LS1 to the antgame 1.
−A1 is applied to one side.
またこのときデテクターＴＳＤはＬＴｌまたはＬＴ２を
検知するので、その検知信号Ｓはハイレベルとなシ、ア
ットゲートＡ１は開く。Also, at this time, the detector TSD detects LTl or LT2, so the detection signal S is at a high level and the at gate A1 is opened.
したがってその出力信号ＯＦによりリレースイッチＬＳ
２が開き、装置全体への電源供給が遮断される。Therefore, the output signal OF causes the relay switch LS to
2 opens, cutting off the power supply to the entire device.
ＬＤ間にテープの磁性部ＭＴがあるときはその不透光性
によりデテクターＴＳＤの検知信号Ｓはローレベルであ
る。When there is a magnetic part MT of the tape between the LDs, the detection signal S of the detector TSD is at a low level due to its non-transparent nature.
このとき電源オフスイッチＳ。を操作すると前同様に電
源オフ要求信号ＰＤが発生するが、今度はアントゲ−ト
Ａ１ は開かず、代りにアンドゲートＡ２ が開き、そ
の出力信号ＭＤがモーターＭの駆動回路ＴＤＣが起動し
、磁気テープＴが走行される。At this time, the power off switch S is pressed. When operated, the power off request signal PD is generated as before, but this time, the AND gate A1 is not opened, but instead, the AND gate A2 is opened, and the output signal MD starts the drive circuit TDC of the motor M, and the magnetic Tape T is run.
テープ走行が進行するとやがてテープのリード部ＬＴ１
−ｆたはＬＴ２がＬ−Ｄ間に到達する。As tape running progresses, the lead portion LT1 of the tape eventually
-f or LT2 arrives between LD.
すると前の作動同様に検知信号Ｓばハイレベルとなシ再
びアットゲートＡ１が開き。Then, like the previous operation, the detection signal S becomes high level and the at-gate A1 opens again.
またＡ２は閉じテープ走行は停止される。Further, A2 is closed and tape running is stopped.
この位置まで走行されると読取り部等の露出部ＲＷＥは
テープリード部ＬＴ１ｔたけＬＴ２が位置し、磁性部Ｍ
Ｔは非露出状態となる。When traveling to this position, the exposed part RWE such as the reading part has the tape lead part LT1t as much as LT2, and the magnetic part M
T becomes non-exposed.
筐たアンドゲートＡ１に出力信号ＯＦが生じるのでやは
り前同様にスイッチＬＳ２が開き、電源は遮断される。Since the output signal OF is generated in the AND gate A1, the switch LS2 is opened as before, and the power is cut off.
本発明は上述の如くテープの磁性部を非露出状態とした
後に装置の電源をオフさせる如く構成したから、テープ
磁性部の損傷、劣化、汚損全未然に防止できるものであ
る。Since the present invention is constructed so that the power to the apparatus is turned off after the magnetic part of the tape is made non-exposed as described above, damage, deterioration, and contamination of the magnetic part of the tape can be completely prevented.
図は本発明の一実施例である。
ＭＴ・・・・・・テープ磁性部、ＬＴｌ、 ＬＴ２”°
曲テープリード部、ＴＳＤ・・・・・・デテクター。
ＴＤＣ・・・・・・テープ駆動回路。The figure shows one embodiment of the invention. MT...Tape magnetic part, LTl, LT2"°
Song tape lead section, TSD...detector. TDC...Tape drive circuit.
Claims (1)
が読取り、書込み等の露出状態にあれば、非露出状態に
なる昔で走行させた後、装置電源をオフさせることを特
徴とするデータ処理方式。1. A data processing method characterized in that when the power switch is turned off, if the magnetic part of the magnetic tape is in an exposed state such as reading or writing, it becomes non-exposed, and after running the device, the device power is turned off. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50115787A JPS5830658B2 (en) | 1975-09-25 | 1975-09-25 | Data processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50115787A JPS5830658B2 (en) | 1975-09-25 | 1975-09-25 | Data processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5240106A JPS5240106A (en) | 1977-03-28 |
| JPS5830658B2 true JPS5830658B2 (en) | 1983-06-30 |
Family
ID=14671047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50115787A Expired JPS5830658B2 (en) | 1975-09-25 | 1975-09-25 | Data processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830658B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02123569A (en) * | 1988-11-02 | 1990-05-11 | Sharp Corp | Magnetic tape and data recording system using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4973107A (en) * | 1972-11-11 | 1974-07-15 |
-
1975
- 1975-09-25 JP JP50115787A patent/JPS5830658B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4973107A (en) * | 1972-11-11 | 1974-07-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5240106A (en) | 1977-03-28 |
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