JPS5634136A - Test tape for tracking adjustment - Google Patents
Test tape for tracking adjustmentInfo
- Publication number
- JPS5634136A JPS5634136A JP10692679A JP10692679A JPS5634136A JP S5634136 A JPS5634136 A JP S5634136A JP 10692679 A JP10692679 A JP 10692679A JP 10692679 A JP10692679 A JP 10692679A JP S5634136 A JPS5634136 A JP S5634136A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video
- frequency signal
- recording
- tracks
- 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
- Magnetic Record Carriers (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
PURPOSE: To obtain the test tape which can perform the tracking adjustment simply with high accuracy, by respectively recording the single frequency signal of two kinds of difference on the adjacent video tracks and recording the control signal so that the video head can trace the intermediate part of the adjacent tracks.
CONSTITUTION: On the video tracks, the single frequency signal F1 in frequency f1 and the single frequency signal F2 in frequency signal f2 are alternately recorded and on the control track, the control signal C shifted by 1/2 vertical synchronizing period from the timing of signal recording is recorded. The signal C reproduced at the control head 9 of the test tape 1 drives the rotating cylinder mechanism 14 via the amplifier 9 and the servo circuit 16. The video heads 10a, 10b perform trace over two video tracks and display the level differences to the pitch width via the transformers 19a, 19b, amplifiers 20a, 20b, BPF24a, 24b and comparator 26. Accordingly, the amount of shift of the tape running location can accurately be grasped.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10692679A JPS5634136A (en) | 1979-08-22 | 1979-08-22 | Test tape for tracking adjustment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10692679A JPS5634136A (en) | 1979-08-22 | 1979-08-22 | Test tape for tracking adjustment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5634136A true JPS5634136A (en) | 1981-04-06 |
Family
ID=14446009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10692679A Pending JPS5634136A (en) | 1979-08-22 | 1979-08-22 | Test tape for tracking adjustment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5634136A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140521A (en) * | 1983-12-28 | 1985-07-25 | Metetsuku Kk | Position adjusting method of magnetic head |
JPS60182543A (en) * | 1984-03-01 | 1985-09-18 | Matsushita Electric Ind Co Ltd | Tape drive control method of video tape recorder |
JPH02168458A (en) * | 1988-12-22 | 1990-06-28 | Sharp Corp | Standard tape for tape running adjustment and tape running adjustment method |
-
1979
- 1979-08-22 JP JP10692679A patent/JPS5634136A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140521A (en) * | 1983-12-28 | 1985-07-25 | Metetsuku Kk | Position adjusting method of magnetic head |
JPS60182543A (en) * | 1984-03-01 | 1985-09-18 | Matsushita Electric Ind Co Ltd | Tape drive control method of video tape recorder |
JPH02168458A (en) * | 1988-12-22 | 1990-06-28 | Sharp Corp | Standard tape for tape running adjustment and tape running adjustment method |
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