JPS54100706A - Reference signal writing device for magnetic tape - Google Patents
Reference signal writing device for magnetic tapeInfo
- Publication number
- JPS54100706A JPS54100706A JP770278A JP770278A JPS54100706A JP S54100706 A JPS54100706 A JP S54100706A JP 770278 A JP770278 A JP 770278A JP 770278 A JP770278 A JP 770278A JP S54100706 A JPS54100706 A JP S54100706A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- signals
- capstan
- rotation
- angle
- 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.)
- Granted
Links
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
PURPOSE: To make it possible to measure the recording accuracy of a magnetic tape bu counting the signals corresponding to the angle of rotation of a capstan with the use of reference signals which are read out of the magnetic tape.
CONSTITUTION: The signals read out by magnetic heads 7 and 8 are amplified at 9 and 10 and shaped in their waveforms at 11 and 12 so that they are fed to a measuring device 13. The angle of rotation of a capstan 2 for driving a magnetic tape 1 is detected at 3 and changed into pulses at 5 so that the resultant pulse signals are multiplified at 6 and fed to the measuring device 13. The pulse signals corresponding to the angle of rotation of the capstan are counted on the basis of the intervals of the reference signals which are read out from the heads 7 and 8 so that the writing accuracy of the reference signals is measured.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP770278A JPS54100706A (en) | 1978-01-25 | 1978-01-25 | Reference signal writing device for magnetic tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP770278A JPS54100706A (en) | 1978-01-25 | 1978-01-25 | Reference signal writing device for magnetic tape |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54100706A true JPS54100706A (en) | 1979-08-08 |
JPS5751182B2 JPS5751182B2 (en) | 1982-10-30 |
Family
ID=11673078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP770278A Granted JPS54100706A (en) | 1978-01-25 | 1978-01-25 | Reference signal writing device for magnetic tape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54100706A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6166688U (en) * | 1984-10-06 | 1986-05-07 |
-
1978
- 1978-01-25 JP JP770278A patent/JPS54100706A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5751182B2 (en) | 1982-10-30 |
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