KR870011051U - 촛점 입력구동신호 발생기 - Google Patents
촛점 입력구동신호 발생기Info
- Publication number
- KR870011051U KR870011051U KR2019850017462U KR850017462U KR870011051U KR 870011051 U KR870011051 U KR 870011051U KR 2019850017462 U KR2019850017462 U KR 2019850017462U KR 850017462 U KR850017462 U KR 850017462U KR 870011051 U KR870011051 U KR 870011051U
- Authority
- KR
- South Korea
- Prior art keywords
- drive signal
- signal generator
- input drive
- focus input
- focus
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019850017462U KR890003586Y1 (ko) | 1985-12-24 | 1985-12-24 | 촛점 입력구동신호 발생기 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019850017462U KR890003586Y1 (ko) | 1985-12-24 | 1985-12-24 | 촛점 입력구동신호 발생기 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR870011051U true KR870011051U (ko) | 1987-07-15 |
| KR890003586Y1 KR890003586Y1 (ko) | 1989-05-27 |
Family
ID=19247473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019850017462U KR890003586Y1 (ko) | 1985-12-24 | 1985-12-24 | 촛점 입력구동신호 발생기 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR890003586Y1 (ko) |
-
1985
- 1985-12-24 KR KR2019850017462U patent/KR890003586Y1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890003586Y1 (ko) | 1989-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19961231 Year of fee payment: 9 |
|
| LAPS | Lapse due to unpaid annual fee |