KR880000571Y1 - 광학식 디스크 플레이어의 슬라이드 회로 - Google Patents
광학식 디스크 플레이어의 슬라이드 회로 Download PDFInfo
- Publication number
- KR880000571Y1 KR880000571Y1 KR2019850009182U KR850009182U KR880000571Y1 KR 880000571 Y1 KR880000571 Y1 KR 880000571Y1 KR 2019850009182 U KR2019850009182 U KR 2019850009182U KR 850009182 U KR850009182 U KR 850009182U KR 880000571 Y1 KR880000571 Y1 KR 880000571Y1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- operational amplifier
- input terminal
- inverting input
- optical disc
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 7
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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
-
- 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
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
Description
Claims (1)
- 시스템부(1)로 모우터(M)를 제어하는 광학식 디스크플레이어에 있어서, 시스템부(1)의 출력측을 저항(R4)을 통해 연산증폭기(OP1)의 반전입력단자(-)에 접속함과 동시에 그 접속점을 저항(R5, R6)을 통해 연산증폭기(OP2)의 반전입력단자(-)에는 접속하여 그의 출력측을 트랜지스터(TR1, TR2), (TR3, TR4)의 베이스에 접속하고, 트랜지스터(TR1, TR2), (TR3, TR4)의 에미터는 모우터(M)의 양측단자(A)(B)에 접속함과 동시에 그 접속점을 상기 저항(R5, R6)의 접속점 및 연산증폭기(OP2)의 반전입력단자(-)측에 접속하여 구성함을 특징으로하는 광학식 디스크플레이어의 슬라이드회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019850009182U KR880000571Y1 (ko) | 1985-07-20 | 1985-07-20 | 광학식 디스크 플레이어의 슬라이드 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019850009182U KR880000571Y1 (ko) | 1985-07-20 | 1985-07-20 | 광학식 디스크 플레이어의 슬라이드 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870002815U KR870002815U (ko) | 1987-03-18 |
KR880000571Y1 true KR880000571Y1 (ko) | 1988-03-14 |
Family
ID=19244024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019850009182U KR880000571Y1 (ko) | 1985-07-20 | 1985-07-20 | 광학식 디스크 플레이어의 슬라이드 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR880000571Y1 (ko) |
-
1985
- 1985-07-20 KR KR2019850009182U patent/KR880000571Y1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR870002815U (ko) | 1987-03-18 |
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Date | Code | Title | Description |
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A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19850720 |
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UA0201 | Request for examination |
Patent event date: 19850720 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
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UG1501 | Laying open of application | ||
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19880122 |
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E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19880525 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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UR0701 | Registration of establishment |
Patent event date: 19880811 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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Payment date: 19931229 Start annual number: 7 End annual number: 7 |
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FPAY | Annual fee payment |
Payment date: 19941227 Year of fee payment: 8 |
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UC1903 | Unpaid annual fee |
Termination date: 19971210 Termination category: Default of registration fee |