CN1050637A - 检测电路 - Google Patents
检测电路 Download PDFInfo
- Publication number
- CN1050637A CN1050637A CN90108036A CN90108036A CN1050637A CN 1050637 A CN1050637 A CN 1050637A CN 90108036 A CN90108036 A CN 90108036A CN 90108036 A CN90108036 A CN 90108036A CN 1050637 A CN1050637 A CN 1050637A
- Authority
- CN
- China
- Prior art keywords
- signal
- door
- input end
- testing circuit
- light beam
- 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.)
- Granted
Links
Images
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
- G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Air Bags (AREA)
- Burglar Alarm Systems (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Enzymes And Modification Thereof (AREA)
- Electrophonic Musical Instruments (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Fire-Detection Mechanisms (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3932831.7 | 1989-09-30 | ||
DE3932831A DE3932831A1 (de) | 1989-09-30 | 1989-09-30 | Detektionsschaltung |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1050637A true CN1050637A (zh) | 1991-04-10 |
CN1020009C CN1020009C (zh) | 1993-03-03 |
Family
ID=6390658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN90108036A Expired - Lifetime CN1020009C (zh) | 1989-09-30 | 1990-09-28 | 检测电路 |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0494892B1 (zh) |
JP (1) | JP2854131B2 (zh) |
KR (1) | KR100227668B1 (zh) |
CN (1) | CN1020009C (zh) |
AT (1) | ATE119706T1 (zh) |
AU (1) | AU6418690A (zh) |
DD (1) | DD298325A5 (zh) |
DE (2) | DE3932831A1 (zh) |
ES (1) | ES2071829T3 (zh) |
FI (1) | FI921365A (zh) |
HK (1) | HK81796A (zh) |
HU (1) | HUT61118A (zh) |
MY (1) | MY107309A (zh) |
TR (1) | TR24612A (zh) |
WO (1) | WO1991005340A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1299270C (zh) * | 2000-11-07 | 2007-02-07 | 三洋电机株式会社 | 光盘装置 |
CN101652813B (zh) * | 2007-04-05 | 2011-10-05 | 皇家飞利浦电子股份有限公司 | 具有延迟跳层的光盘驱动器 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0538936B1 (en) * | 1991-10-23 | 1997-01-08 | Koninklijke Philips Electronics N.V. | Device for scanning a record carrier |
DE10062079A1 (de) * | 2000-12-13 | 2002-06-27 | Thomson Brandt Gmbh | Verfahren zum Spurzählen und entsprechendes Gerät zum Lesen und/oder Beschreiben eines optischen Aufzeichnungsträgers |
JP4245436B2 (ja) * | 2003-08-08 | 2009-03-25 | パナソニック株式会社 | ディフェクト検出装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4855977A (en) * | 1987-07-27 | 1989-08-08 | Laser Magnetic Storage International Company | Track seeking apparatus and method using sampled information |
-
1989
- 1989-09-30 DE DE3932831A patent/DE3932831A1/de not_active Withdrawn
-
1990
- 1990-09-20 KR KR1019920700709A patent/KR100227668B1/ko not_active IP Right Cessation
- 1990-09-20 EP EP90914170A patent/EP0494892B1/de not_active Expired - Lifetime
- 1990-09-20 WO PCT/EP1990/001595 patent/WO1991005340A1/de active IP Right Grant
- 1990-09-20 AU AU64186/90A patent/AU6418690A/en not_active Abandoned
- 1990-09-20 JP JP2513261A patent/JP2854131B2/ja not_active Expired - Lifetime
- 1990-09-20 HU HU9200995A patent/HUT61118A/hu unknown
- 1990-09-20 DE DE59008679T patent/DE59008679D1/de not_active Expired - Lifetime
- 1990-09-20 AT AT90914170T patent/ATE119706T1/de not_active IP Right Cessation
- 1990-09-20 ES ES90914170T patent/ES2071829T3/es not_active Expired - Lifetime
- 1990-09-28 MY MYPI90001677A patent/MY107309A/en unknown
- 1990-09-28 DD DD90344296A patent/DD298325A5/de not_active IP Right Cessation
- 1990-09-28 CN CN90108036A patent/CN1020009C/zh not_active Expired - Lifetime
- 1990-10-08 TR TR90/0923A patent/TR24612A/xx unknown
-
1992
- 1992-03-27 FI FI921365A patent/FI921365A/fi not_active Application Discontinuation
-
1996
- 1996-05-09 HK HK81796A patent/HK81796A/xx not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1299270C (zh) * | 2000-11-07 | 2007-02-07 | 三洋电机株式会社 | 光盘装置 |
CN101652813B (zh) * | 2007-04-05 | 2011-10-05 | 皇家飞利浦电子股份有限公司 | 具有延迟跳层的光盘驱动器 |
Also Published As
Publication number | Publication date |
---|---|
KR100227668B1 (ko) | 1999-11-01 |
KR920704281A (ko) | 1992-12-19 |
TR24612A (tr) | 1992-01-01 |
HK81796A (en) | 1996-05-17 |
MY107309A (en) | 1995-11-30 |
DD298325A5 (de) | 1992-02-13 |
HU9200995D0 (en) | 1992-06-29 |
AU6418690A (en) | 1991-04-28 |
WO1991005340A1 (de) | 1991-04-18 |
FI921365A0 (fi) | 1992-03-27 |
EP0494892B1 (de) | 1995-03-08 |
ATE119706T1 (de) | 1995-03-15 |
JPH05500577A (ja) | 1993-02-04 |
HUT61118A (en) | 1992-11-30 |
ES2071829T3 (es) | 1995-07-01 |
JP2854131B2 (ja) | 1999-02-03 |
FI921365A (fi) | 1992-03-27 |
CN1020009C (zh) | 1993-03-03 |
DE3932831A1 (de) | 1991-04-11 |
EP0494892A1 (de) | 1992-07-22 |
DE59008679D1 (de) | 1995-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiamen Matsushita Electronic Information Co., Ltd. Assignor: Matsushita Electric Industrial Co., Ltd. Contract fulfillment period: 2002.10.1 to 2010.9.28 Contract record no.: 2009990000028 Denomination of invention: Rotation speed measuring circuit for electric fan Granted publication date: 19930103 License type: Fen Xuke Record date: 20090113 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: SEPARATELY LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2002.10.1 TO 2010.9.28; CHANGE OF CONTRACT Name of requester: XIAMEN PANASONIC ELECTRONIC INFORMATION CO., LTD. Effective date: 20090113 |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiamen Matsushita Electronic Information Co., Ltd. Assignor: Matsushita Electric Industrial Co., Ltd. Contract fulfillment period: 2002.10.1 to 2010.9.28 Contract record no.: 2009990000028 Denomination of invention: Rotation speed measuring circuit for electric fan Granted publication date: 19930103 License type: Fen Xuke Record date: 20090113 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: SEPARATELY LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2002.10.1 TO 2010.9.28; CHANGE OF CONTRACT Name of requester: XIAMEN PANASONIC ELECTRONIC INFORMATION CO., LTD. Effective date: 20090113 |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20100928 Granted publication date: 19930303 |