JPS56148723A - Detector for height position of head in magnetic recording and reproducing device - Google Patents
Detector for height position of head in magnetic recording and reproducing deviceInfo
- Publication number
- JPS56148723A JPS56148723A JP5141480A JP5141480A JPS56148723A JP S56148723 A JPS56148723 A JP S56148723A JP 5141480 A JP5141480 A JP 5141480A JP 5141480 A JP5141480 A JP 5141480A JP S56148723 A JPS56148723 A JP S56148723A
- Authority
- JP
- Japan
- Prior art keywords
- rotary head
- tracks
- height position
- rotary
- head
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
PURPOSE:To enhance accuracy of the detection of height positions by scanning the intermediate position of the two tracks having previously been recorded and formed with an A rotary head, with a B rotary head to form a track, reproducing the reference signals and comparing the respective levels. CONSTITUTION:A and B rotary heads are put in such a height position relation by which they are deviated relatively by one track pitch. The two tracks t1, t3 having previously recorded and formed with the A rotary head are used as tracks on both sides to make the B rotary head scan the intermediate positio of these tracks and records and forms a track t4. In addition, the reference signal fp for detecting height position is recorded in the respective tracks t1, t3 by the A rotary head, and only in the prescribed period, the reference signals fp are reproduced with the B rotary head and their respective levels are compared. The detected error signal corresponding to the the deviation for the prescribed values of the relative height positions of the A and B rotary heads is taken out and is used as the height position detecting signal for the B rotary head. With such constitution, the information on the deviation of the height positions is obtained from the tracks on both sides and therefore it is detected with sufficiently high accuracy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5141480A JPS56148723A (en) | 1980-04-18 | 1980-04-18 | Detector for height position of head in magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5141480A JPS56148723A (en) | 1980-04-18 | 1980-04-18 | Detector for height position of head in magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56148723A true JPS56148723A (en) | 1981-11-18 |
Family
ID=12886261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5141480A Pending JPS56148723A (en) | 1980-04-18 | 1980-04-18 | Detector for height position of head in magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56148723A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0117753A2 (en) * | 1983-02-28 | 1984-09-05 | Sony Corporation | Methods of and apparatus for recording digital information signals |
EP0638894A2 (en) * | 1993-08-13 | 1995-02-15 | Sharp Kabushiki Kaisha | A magnetic recording/reproduction apparatus and method for adjusting head height therein |
-
1980
- 1980-04-18 JP JP5141480A patent/JPS56148723A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0117753A2 (en) * | 1983-02-28 | 1984-09-05 | Sony Corporation | Methods of and apparatus for recording digital information signals |
EP0638894A2 (en) * | 1993-08-13 | 1995-02-15 | Sharp Kabushiki Kaisha | A magnetic recording/reproduction apparatus and method for adjusting head height therein |
EP0638894A3 (en) * | 1993-08-13 | 1996-12-27 | Sharp Kk | A magnetic recording/reproduction apparatus and method for adjusting head height therein. |
US5870244A (en) * | 1993-08-13 | 1999-02-09 | Sharp Kabushiki Kaisha | Magnetic recording/reproduction apparatus and method for adjusting head height therein |
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