JPS55129953A - Slip check system in magnetic tape device - Google Patents
Slip check system in magnetic tape deviceInfo
- Publication number
- JPS55129953A JPS55129953A JP3683379A JP3683379A JPS55129953A JP S55129953 A JPS55129953 A JP S55129953A JP 3683379 A JP3683379 A JP 3683379A JP 3683379 A JP3683379 A JP 3683379A JP S55129953 A JPS55129953 A JP S55129953A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- output
- speed
- tachometer
- slip
- 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
Abstract
PURPOSE: To perform slip check more exactly by starting write modulation when the speed does not reach a fixed value and by comparing tachometer pulses at this time with data pulses.
CONSTITUTION: The output of tachometer 5 is counted as tachometer pulse intervals by tachometer pulse sensor 6 and the second counter 7, and the first and the second speeds are detected by speed detection means 9. When speed detection means 9 detects the first speed Va, modulating circuit 11 starts to start write. When written data reaches read head 4, the output is stored in register 15 through peak detector 13, etc. Meanwhile, the third counter 10 counts pulses only during the passage time of the tape through the head gap on the basis of the output of the second speed Vb and stops. Then, the output of the third counter 10 is applied to comparator circuit 21 together with data pulses through counter 14 and is compared with the reference value for no slip to detect slip. Thus, more exact check is possible.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3683379A JPS55129953A (en) | 1979-03-30 | 1979-03-30 | Slip check system in magnetic tape device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3683379A JPS55129953A (en) | 1979-03-30 | 1979-03-30 | Slip check system in magnetic tape device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55129953A true JPS55129953A (en) | 1980-10-08 |
Family
ID=12480739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3683379A Pending JPS55129953A (en) | 1979-03-30 | 1979-03-30 | Slip check system in magnetic tape device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55129953A (en) |
-
1979
- 1979-03-30 JP JP3683379A patent/JPS55129953A/en active Pending
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