JPS55108914A - Magnetic tape device control system - Google Patents
Magnetic tape device control systemInfo
- Publication number
- JPS55108914A JPS55108914A JP1561679A JP1561679A JPS55108914A JP S55108914 A JPS55108914 A JP S55108914A JP 1561679 A JP1561679 A JP 1561679A JP 1561679 A JP1561679 A JP 1561679A JP S55108914 A JPS55108914 A JP S55108914A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- medium
- counter
- data
- read
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To use a magnetic tape medium while skipping medium defective positions on the magnetic tape medium by providing a medium defective position detection means for the magnetic tape and a means which stores medium defective positions of the tape every volume of the magnetic tape.
CONSTITUTION: Though data is stored in data storage unit 5 for normal data, read errors are reported to medium defect recording circuit 9 if they are detected. Meanwhile, tachometer pulses from tachometer 6 are detected by sensor 7 and are sent to counter 8. In respect to medium defective positions, values of the counter are recorded onto recording ledger 10. When data is read by read circuit 3, skip control circuit 11 is started if the value of counter 8 agrees with the value of recording ledger 10. By this constitution, the magnetic tape can be used without abandonment even for a partial magnetic tape medium defect while skipping medium defective positions on the magnetic tape medium in a magnetic tape use time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1561679A JPS55108914A (en) | 1979-02-13 | 1979-02-13 | Magnetic tape device control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1561679A JPS55108914A (en) | 1979-02-13 | 1979-02-13 | Magnetic tape device control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55108914A true JPS55108914A (en) | 1980-08-21 |
Family
ID=11893634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1561679A Pending JPS55108914A (en) | 1979-02-13 | 1979-02-13 | Magnetic tape device control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55108914A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61115273A (en) * | 1984-11-10 | 1986-06-02 | Hitachi Ltd | Data recording system |
JPS61255568A (en) * | 1985-05-09 | 1986-11-13 | Nec Corp | Microprogram processor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52143808A (en) * | 1976-05-26 | 1977-11-30 | Hitachi Ltd | Data recording system |
JPS5350814A (en) * | 1976-10-20 | 1978-05-09 | Mitsubishi Electric Corp | Write correction system of magnetic tape |
-
1979
- 1979-02-13 JP JP1561679A patent/JPS55108914A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52143808A (en) * | 1976-05-26 | 1977-11-30 | Hitachi Ltd | Data recording system |
JPS5350814A (en) * | 1976-10-20 | 1978-05-09 | Mitsubishi Electric Corp | Write correction system of magnetic tape |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61115273A (en) * | 1984-11-10 | 1986-06-02 | Hitachi Ltd | Data recording system |
JPS61255568A (en) * | 1985-05-09 | 1986-11-13 | Nec Corp | Microprogram processor |
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