KR100408024B1 - 디스크 드라이버의 트래킹 신호 검출장치 - Google Patents
디스크 드라이버의 트래킹 신호 검출장치 Download PDFInfo
- Publication number
- KR100408024B1 KR100408024B1 KR10-2001-0018611A KR20010018611A KR100408024B1 KR 100408024 B1 KR100408024 B1 KR 100408024B1 KR 20010018611 A KR20010018611 A KR 20010018611A KR 100408024 B1 KR100408024 B1 KR 100408024B1
- Authority
- KR
- South Korea
- Prior art keywords
- slider
- disk
- metal plate
- tracking
- detecting
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10305—Improvement or modification of read or write signals signal quality assessment
- G11B20/10388—Improvement or modification of read or write signals signal quality assessment control of the read or write heads, e.g. tracking errors, defocus or tilt compensation
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
- G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
- G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
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- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (6)
- 상부에서 입사광을 1차 집속시키는 제1집속렌즈 및 하면에서 상기 제1집속렌즈를 통해 1차 집속된 입사광을 2차 집속시켜 디스크에 근접장광을 조사시키는 제2집속렌즈로 이루어지는 광학계를 구비하여, 디스크가 회전할 경우에 부상되는 슬라이더와; 상기 슬라이더의 하면일측에 구비된 금속판과; 상기 금속판과 디스크사이의 이격간격 및 대향면적에 따라 가변하는 정전용량값을 통해 상기 슬라이더와 디스크사이의 이격간격 및 트래킹 에러를 감지하는 감지부를 구비하여 구성된 것을 특징으로 하는 디스크 드라이버의 트래킹 신호 검출장치.
- 삭제
- 제 1 항에 있어서, 상기 제2집속렌즈는 반구형 실을 적용한 것을 특징으로 하는 디스크 드라이버의 트래킹 신호 검출장치.
- 제 1 항에 있어서, 상기 슬라이더의 하면일측에 구비된 금속판은 슬라이더의 하면일측에 형성된 홈 형태의 공압패드의 바닥면에 구비된 것을 특징으로 하는 디스크 드라이버의 트래킹 신호 검출장치.
- 제 1 항 또는 제 4 항에 있어서, 상기 금속판은 서로 이격되는 3개의 금속판으로 구성되어 중앙의 금속판은 슬라이더와 디스크사이의 이격간격에 따른 정전용량값의 가변을 검출하며, 가장자리의 금속판은 슬라이더와 디스크의 트래킹에 따른 정전용량값의 가변을 검출하는 것을 특징으로 하는 디스크 드라이버의 트래킹 신호 검출장치.
- 제 1 항에 있어서, 상기 감지부는 리지드-암을 통해 보이스 코일 모터에 연결됨과 아울러 지지대를 통해 슬라이더에 연결되어 상기 금속판과 디스크사이의 이격간격 및 대향면적에 따라 가변하는 정전용량값을 통해 슬라이더의 부상높이 및 트래킹을 조절하는 변위조정기로 구성한 것을 특징으로 하는 디스크 드라이버의 트래킹 신호 검출장치.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0018611A KR100408024B1 (ko) | 2001-04-09 | 2001-04-09 | 디스크 드라이버의 트래킹 신호 검출장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0018611A KR100408024B1 (ko) | 2001-04-09 | 2001-04-09 | 디스크 드라이버의 트래킹 신호 검출장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020078296A KR20020078296A (ko) | 2002-10-18 |
| KR100408024B1 true KR100408024B1 (ko) | 2003-12-01 |
Family
ID=27700248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0018611A Expired - Fee Related KR100408024B1 (ko) | 2001-04-09 | 2001-04-09 | 디스크 드라이버의 트래킹 신호 검출장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100408024B1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100735110B1 (ko) * | 2006-01-09 | 2007-07-06 | 엘지전자 주식회사 | 근접장 기록용 렌즈 어셈블리 조립방법 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483392A (en) * | 1991-01-09 | 1996-01-09 | Sony Corporation | Magnetic recording and or reproducing apparatus and a recording medium thereof |
| JPH08212579A (ja) * | 1995-02-01 | 1996-08-20 | Sony Corp | 光ヘッド、光照射方法、記録媒体駆動装置 |
-
2001
- 2001-04-09 KR KR10-2001-0018611A patent/KR100408024B1/ko not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483392A (en) * | 1991-01-09 | 1996-01-09 | Sony Corporation | Magnetic recording and or reproducing apparatus and a recording medium thereof |
| JPH08212579A (ja) * | 1995-02-01 | 1996-08-20 | Sony Corp | 光ヘッド、光照射方法、記録媒体駆動装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020078296A (ko) | 2002-10-18 |
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