JPS6364831B2 - - Google Patents
Info
- Publication number
- JPS6364831B2 JPS6364831B2 JP16873382A JP16873382A JPS6364831B2 JP S6364831 B2 JPS6364831 B2 JP S6364831B2 JP 16873382 A JP16873382 A JP 16873382A JP 16873382 A JP16873382 A JP 16873382A JP S6364831 B2 JPS6364831 B2 JP S6364831B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- differentiating
- phase shift
- inverting
- 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.)
- Expired
Links
- 230000010363 phase shift Effects 0.000 claims description 21
- 230000004069 differentiation Effects 0.000 claims description 8
- 230000004886 head movement Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 18
- 238000001514 detection method Methods 0.000 description 13
- 230000003111 delayed effect Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
-
- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
- Control Of Velocity Or Acceleration (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16873382A JPS5958666A (ja) | 1982-09-28 | 1982-09-28 | 磁気ヘツド移動速度検出器 |
| US06/491,185 US4510537A (en) | 1982-05-04 | 1983-05-03 | Magnetic head moving velocity detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16873382A JPS5958666A (ja) | 1982-09-28 | 1982-09-28 | 磁気ヘツド移動速度検出器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5958666A JPS5958666A (ja) | 1984-04-04 |
| JPS6364831B2 true JPS6364831B2 (enrdf_load_stackoverflow) | 1988-12-13 |
Family
ID=15873406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16873382A Granted JPS5958666A (ja) | 1982-05-04 | 1982-09-28 | 磁気ヘツド移動速度検出器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5958666A (enrdf_load_stackoverflow) |
-
1982
- 1982-09-28 JP JP16873382A patent/JPS5958666A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5958666A (ja) | 1984-04-04 |
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