DE69016089D1 - Gerät zur Ermittlung des Übersprechniveaus eines optischen Lesesignales. - Google Patents
Gerät zur Ermittlung des Übersprechniveaus eines optischen Lesesignales.Info
- Publication number
- DE69016089D1 DE69016089D1 DE69016089T DE69016089T DE69016089D1 DE 69016089 D1 DE69016089 D1 DE 69016089D1 DE 69016089 T DE69016089 T DE 69016089T DE 69016089 T DE69016089 T DE 69016089T DE 69016089 D1 DE69016089 D1 DE 69016089D1
- Authority
- DE
- Germany
- Prior art keywords
- determining
- optical reading
- reading signal
- crosstalk level
- crosstalk
- 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
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
- G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1116989A JP2572842B2 (ja) | 1989-05-10 | 1989-05-10 | 光学的読取り信号のクロストーク量検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69016089D1 true DE69016089D1 (de) | 1995-03-02 |
DE69016089T2 DE69016089T2 (de) | 1995-07-20 |
Family
ID=14700725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69016089T Expired - Fee Related DE69016089T2 (de) | 1989-05-10 | 1990-04-26 | Gerät zur Ermittlung des Übersprechniveaus eines optischen Lesesignales. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5402403A (de) |
EP (1) | EP0397354B1 (de) |
JP (1) | JP2572842B2 (de) |
DE (1) | DE69016089T2 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04216326A (ja) * | 1990-12-18 | 1992-08-06 | Pioneer Electron Corp | クロストーク量検出装置 |
ES2095965T3 (es) * | 1991-02-06 | 1997-03-01 | Blaupunkt Werke Gmbh | Procedimiento para la correccion de un angulo erroneo. |
DE69331163T2 (de) * | 1992-02-19 | 2002-04-18 | Sony Corp., Tokio/Tokyo | Optisches Aufzeichnungsmedium, Aufzeichnungs- und Wiedergabemethode, und Methode zur Erzeugung eines Spurfolgefehlersignals |
US5684783A (en) * | 1992-02-19 | 1997-11-04 | Sony Corporation | Reproducing apparatus having a detector for simultaneously scanning adjacent tracks of an optical recording medium |
JPH05250678A (ja) * | 1992-03-05 | 1993-09-28 | Pioneer Electron Corp | クロストーク検出装置 |
JPH05250680A (ja) * | 1992-03-05 | 1993-09-28 | Pioneer Electron Corp | クロストーク検出装置 |
JP3326946B2 (ja) * | 1994-01-10 | 2002-09-24 | ソニー株式会社 | 光ディスク再生装置及び光ディスク再生方法 |
JPH07334931A (ja) * | 1994-06-10 | 1995-12-22 | Pioneer Electron Corp | クロストーク除去装置 |
US5898654A (en) * | 1994-07-14 | 1999-04-27 | Matsushita Electric Industrial Co., Ltd. | Optical disk and optical disk apparatus having a predetermined pattern of marks on tracks such that a reproduced signal is caused to jitter |
DE69632267T2 (de) * | 1996-01-16 | 2004-08-26 | Matsushita Electric Industrial Co., Ltd., Kadoma | Optische platte |
US5748592A (en) * | 1996-02-07 | 1998-05-05 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus and disk storage medium for high density recording |
KR100327203B1 (ko) * | 1998-03-14 | 2002-05-09 | 윤종용 | 틸트검출패턴을가지는광디스크기록매체,그리고이에적합한틸트검출방법 |
EP1042749A1 (de) | 1998-08-10 | 2000-10-11 | Koninklijke Philips Electronics N.V. | Vorrichtung zur aufzeichnung auf einen optischen datenträger |
JP4287856B2 (ja) * | 2003-08-29 | 2009-07-01 | 富士通株式会社 | データ再生装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141047A (en) * | 1977-09-12 | 1979-02-20 | Sony Corporation | Method and apparatus for correcting tracking errors of a transducer which scans parallel record tracks |
JPS57186237A (en) * | 1981-05-12 | 1982-11-16 | Pioneer Video Corp | Crosstalk eliminating device for recorded information reproducing device |
JPS5812170A (ja) * | 1981-07-14 | 1983-01-24 | Victor Co Of Japan Ltd | 円盤状情報記録媒体再生装置のジツタ補正回路 |
JPS5940326A (ja) * | 1982-08-30 | 1984-03-06 | Hitachi Ltd | デイスク再生装置 |
JPS59145726U (ja) * | 1983-03-16 | 1984-09-28 | パイオニア株式会社 | 情報読取装置におけるサ−ボ装置 |
JPS609018U (ja) * | 1983-06-24 | 1985-01-22 | パイオニア株式会社 | 光学式記録情報読取装置 |
US4712204A (en) * | 1984-08-31 | 1987-12-08 | Matsushita Electric Industrial Co., Ltd. | Optical disk and method for reproducing reference signal therefrom |
GB2165687B (en) * | 1984-09-14 | 1988-06-08 | Pioneer Electronic Corp | Recording disk data playback apparatus |
JPH067413B2 (ja) * | 1985-07-03 | 1994-01-26 | 株式会社リコー | 光ピツクアツプのトラツキング制御方式 |
US4807055A (en) * | 1985-09-11 | 1989-02-21 | Pioneer Electronic Corporation | Multi-speed magnetic recording playback |
JPS62180568A (ja) * | 1986-02-04 | 1987-08-07 | Sony Corp | デイスク状記録媒体の欠陥検出装置 |
US5003414A (en) * | 1986-07-18 | 1991-03-26 | Pioneer Electronic Corporation | Digital signal reproducing apparatus having improved pilot level compensation control |
US4947272A (en) * | 1987-03-30 | 1990-08-07 | Pioneer Electronic Corporation | Signal reproducing device which offsets the tracking error signal for a digital tape player |
US5065253A (en) * | 1987-12-25 | 1991-11-12 | Pioneer Electronic Corporation | Disk player with disk tilt or pickup position responsive noise reduction |
DE68921173T2 (de) * | 1988-12-21 | 1995-09-21 | Matsushita Electric Ind Co Ltd | Datenaufzeichnungs-wiedergabegerät auf einer Aufzeichnungsscheibe. |
-
1989
- 1989-05-10 JP JP1116989A patent/JP2572842B2/ja not_active Expired - Fee Related
-
1990
- 1990-04-26 DE DE69016089T patent/DE69016089T2/de not_active Expired - Fee Related
- 1990-04-26 EP EP90304524A patent/EP0397354B1/de not_active Expired - Lifetime
-
1993
- 1993-06-18 US US08/077,948 patent/US5402403A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0397354A2 (de) | 1990-11-14 |
US5402403A (en) | 1995-03-28 |
JPH02297763A (ja) | 1990-12-10 |
DE69016089T2 (de) | 1995-07-20 |
EP0397354B1 (de) | 1995-01-18 |
JP2572842B2 (ja) | 1997-01-16 |
EP0397354A3 (de) | 1991-01-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |