JPS5647908A - Magnetic tape processor - Google Patents
Magnetic tape processorInfo
- Publication number
- JPS5647908A JPS5647908A JP12225479A JP12225479A JPS5647908A JP S5647908 A JPS5647908 A JP S5647908A JP 12225479 A JP12225479 A JP 12225479A JP 12225479 A JP12225479 A JP 12225479A JP S5647908 A JPS5647908 A JP S5647908A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- write operation
- specific pattern
- rewrite
- sends
- 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
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE: To facilitate corrections of a rewrite position of rewrite operation by additionally recording a special pattern when an error is detected during write operation.
CONSTITUTION: Unit 300 records groups of information bytes and also transfers them to processor 200. Transferred information byte groups are received by reception part 6 and stored in error signal memory part 7. When detecting error information being in memory part 7, processing control part 2 sends a specific pattern from specific pattern generation part 8 to magnetic tape unit 300, where it is recorded on a medium. As write operation becomes abnormal, processing part 2 sends the reposition indication to magnetic tape unit 300, which runs the magnetic tape backward and starts a read. From reception part 6, the specific pattern is detected as many as prescribed and when a backward run of the same distance with write operation is informed of from supervisory part 9, control part 2 indicates the end of positioning operation. Thus, corrections of a rewrite position can be facilitated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12225479A JPS5647908A (en) | 1979-09-21 | 1979-09-21 | Magnetic tape processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12225479A JPS5647908A (en) | 1979-09-21 | 1979-09-21 | Magnetic tape processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647908A true JPS5647908A (en) | 1981-04-30 |
Family
ID=14831394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12225479A Pending JPS5647908A (en) | 1979-09-21 | 1979-09-21 | Magnetic tape processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647908A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0140456A1 (en) * | 1983-11-02 | 1985-05-08 | Koninklijke Philips Electronics N.V. | Data processing system in which unreliable words in the memory are replaced by an unreliability indicator |
-
1979
- 1979-09-21 JP JP12225479A patent/JPS5647908A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0140456A1 (en) * | 1983-11-02 | 1985-05-08 | Koninklijke Philips Electronics N.V. | Data processing system in which unreliable words in the memory are replaced by an unreliability indicator |
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