NL8200208A - Inrichting voor het uitlezen van een schijfvormige registratiedrager. - Google Patents
Inrichting voor het uitlezen van een schijfvormige registratiedrager. Download PDFInfo
- Publication number
- NL8200208A NL8200208A NL8200208A NL8200208A NL8200208A NL 8200208 A NL8200208 A NL 8200208A NL 8200208 A NL8200208 A NL 8200208A NL 8200208 A NL8200208 A NL 8200208A NL 8200208 A NL8200208 A NL 8200208A
- Authority
- NL
- Netherlands
- Prior art keywords
- detector
- stage
- control signal
- signal
- difference
- 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
-
- 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
- G11B7/0901—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 track following only
- G11B7/0903—Multi-beam tracking systems
-
- 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
- G11B7/13—Optical detectors therefor
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8200208A NL8200208A (nl) | 1982-01-21 | 1982-01-21 | Inrichting voor het uitlezen van een schijfvormige registratiedrager. |
US06/365,716 US4446545A (en) | 1982-01-21 | 1982-04-05 | Apparatus for reading a disk-shaped record carrier |
GB08301154A GB2113872B (en) | 1982-01-21 | 1983-01-17 | Apparatus for reading a disk-shaped record carrier |
KR1019830000168A KR880001174B1 (ko) | 1982-01-21 | 1983-01-18 | 디스크형 기록캐리어 판독장치 |
IT19161/83A IT1167553B (it) | 1982-01-21 | 1983-01-18 | Apparato per la lettura di un supporto di registrazione a disco |
ES519100A ES519100A0 (es) | 1982-01-21 | 1983-01-19 | Un aparato para leer un portador de registro en forma de disco. |
BE0/209936A BE895655A (fr) | 1982-01-21 | 1983-01-19 | Dispositif de lecture d'un support d'information en forme de disque |
CA000419912A CA1194229A (en) | 1982-01-21 | 1983-01-20 | Apparatus for reading a disk-shaped record carrier |
DE19833301702 DE3301702A1 (de) | 1982-01-21 | 1983-01-20 | Anordnung zum lesen eines scheibenfoermigen aufzeichnungstraegers |
JP58006767A JPS58125243A (ja) | 1982-01-21 | 1983-01-20 | デイスク状記録キヤリヤ用読取装置 |
AU10635/83A AU552691B2 (en) | 1982-01-21 | 1983-01-20 | Optically reading a disk shaped record carrier |
FR8300906A FR2520145A1 (fr) | 1982-01-21 | 1983-01-21 | Dispositif de lecture d'un support d'information en forme de disque |
SG970/85A SG97085G (en) | 1982-01-21 | 1985-12-20 | Apparatus for reading a disk-shaped record carrier |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8200208 | 1982-01-21 | ||
NL8200208A NL8200208A (nl) | 1982-01-21 | 1982-01-21 | Inrichting voor het uitlezen van een schijfvormige registratiedrager. |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8200208A true NL8200208A (nl) | 1983-08-16 |
Family
ID=19839113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8200208A NL8200208A (nl) | 1982-01-21 | 1982-01-21 | Inrichting voor het uitlezen van een schijfvormige registratiedrager. |
Country Status (13)
Country | Link |
---|---|
US (1) | US4446545A (de) |
JP (1) | JPS58125243A (de) |
KR (1) | KR880001174B1 (de) |
AU (1) | AU552691B2 (de) |
BE (1) | BE895655A (de) |
CA (1) | CA1194229A (de) |
DE (1) | DE3301702A1 (de) |
ES (1) | ES519100A0 (de) |
FR (1) | FR2520145A1 (de) |
GB (1) | GB2113872B (de) |
IT (1) | IT1167553B (de) |
NL (1) | NL8200208A (de) |
SG (1) | SG97085G (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095766B1 (de) * | 1982-05-31 | 1986-10-22 | Hitachi, Ltd. | Servoschaltung für ein Gerät zur Wiedergabe von Signalen |
US4805162A (en) * | 1982-11-01 | 1989-02-14 | Storage Technology Partners Ii | Fine and coarse servo system for access and tracking on an optical disk |
WO1984004844A1 (en) * | 1983-05-27 | 1984-12-06 | Storage Technology Partners | Coarse position error signal generation in an optical disk storage system employing coarse servo tracks |
EP0145755A1 (de) * | 1983-06-13 | 1985-06-26 | Storage Technology Partners Ii | Verfahren zur erzeugung eines amplitudenmodulierten grobstellungsfehlersignals in einem optischen scheibenspeicher, mit verwendung von grobservofolgefurchen |
NL8303564A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager. |
JPS6070923U (ja) * | 1983-10-19 | 1985-05-20 | パイオニア株式会社 | 焦点誤差検出装置 |
JPS6070924U (ja) * | 1983-10-19 | 1985-05-20 | パイオニア株式会社 | 焦点誤差検出装置 |
DE3485675D1 (de) * | 1983-11-09 | 1992-05-27 | Sharp Kk | Servosystem zum positionieren eines optischen strahls. |
JPS60119641A (ja) * | 1983-12-01 | 1985-06-27 | Pioneer Electronic Corp | トラッキングエラ−信号発生装置 |
NL8400674A (nl) * | 1984-03-02 | 1985-10-01 | Philips Nv | Inrichting voor het inschrijven en/of uitlezen van informatie in een spoor van een reflekterende registratiedrager, met een fokusregeling met verminderde spot offsetgevoeligheid. |
NL8500059A (nl) * | 1985-01-11 | 1986-08-01 | Philips Nv | Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager. |
JPH06101127B2 (ja) * | 1985-03-13 | 1994-12-12 | シャープ株式会社 | 光学ヘツド |
US4959823A (en) * | 1985-07-30 | 1990-09-25 | Laser Magnetic Storage International Company | Tracking and seeking system for use with an optical record carrier having a wobbled track format |
US4879708A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using wobbled pits |
JP2888484B2 (ja) * | 1985-07-30 | 1999-05-10 | オプテイカル ストレツジ インターナシヨナル−ユーエス | 記録キャリア及び光データ読み書き装置 |
US4879707A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using discontinuities |
JP2786181B2 (ja) * | 1985-12-21 | 1998-08-13 | ソニー株式会社 | 光ディスク装置 |
USRE34769E (en) * | 1986-01-16 | 1994-11-01 | Mitsubishi Denki Kabushiki Kaisha | Current mirror amplifier for use in an optical data medium driving apparatus and servo-circuit |
US5004901A (en) * | 1987-06-04 | 1991-04-02 | Mitsubishi Denki Kabushiki Kaisha | Current mirror amplifier for use in an optical data medium driving apparatus and servo-circuit |
EP0234594A3 (en) * | 1986-02-28 | 1989-09-06 | Kabushiki Kaisha Toshiba | System capable of retrieving information from an optical memory |
US4864552A (en) * | 1986-08-29 | 1989-09-05 | Laser Magnetic Storage International Company | Driving signal for coarse servo employing sampled offset signal |
NL8602911A (nl) * | 1986-11-17 | 1988-06-16 | Philips Nv | Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager. |
JP2602019B2 (ja) * | 1987-03-12 | 1997-04-23 | 富士通株式会社 | 光デイスク装置 |
US4785167A (en) * | 1987-08-26 | 1988-11-15 | International Business Machines Corporation | Photodetector having cascaded photoelements |
US5031166A (en) * | 1988-01-25 | 1991-07-09 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor |
TW221074B (de) * | 1991-05-10 | 1994-02-11 | Philips Nv | |
JP3186221B2 (ja) * | 1992-06-02 | 2001-07-11 | パイオニア株式会社 | 光学式記録情報再生装置 |
KR100312104B1 (ko) * | 1997-11-28 | 2002-04-06 | 윤종용 | 밸런스게인튜닝장치 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE29963E (en) * | 1972-03-29 | 1979-04-10 | U.S. Philips Corporation | Servo system for reading from a disc-shaped record carrier containing signals coded in optical form |
US4005260A (en) * | 1972-11-11 | 1977-01-25 | U.S. Philips Corporation | Device for reading a disk-shaped record carrier with time base correction |
NL7315419A (nl) * | 1973-11-10 | 1975-05-13 | Philips Nv | Inrichting voor het uitlezen van een schijfvor- mige registratiedrager. |
US4037252A (en) * | 1973-11-10 | 1977-07-19 | U.S. Philips Corporation | Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking |
NL177780C (nl) * | 1974-02-28 | 1985-11-18 | Philips Nv | Inrichting voor het uitlezen van een op een draaitafel te plaatsen schijfvormige registratiedrager. |
US4001494A (en) * | 1974-11-01 | 1977-01-04 | Zenith Radio Corporation | Photoreceptor matrix for optical video playback system |
JPS52134704A (en) * | 1976-05-06 | 1977-11-11 | Teac Co | Optical recorder/reproducer unit |
GB1532345A (en) * | 1976-06-25 | 1978-11-15 | Hitachi Ltd | Information play-back apparatus |
JPS5320904A (en) * | 1976-08-11 | 1978-02-25 | Toshiba Corp | Optical information reader |
NL7810386A (nl) * | 1978-10-17 | 1980-04-21 | Philips Nv | Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager. |
NL7812111A (nl) * | 1978-12-13 | 1980-06-17 | Philips Nv | Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte. |
NL8001974A (nl) * | 1980-04-03 | 1981-11-02 | Philips Nv | Spoorvolginrichting. |
-
1982
- 1982-01-21 NL NL8200208A patent/NL8200208A/nl not_active Application Discontinuation
- 1982-04-05 US US06/365,716 patent/US4446545A/en not_active Expired - Fee Related
-
1983
- 1983-01-17 GB GB08301154A patent/GB2113872B/en not_active Expired
- 1983-01-18 KR KR1019830000168A patent/KR880001174B1/ko not_active IP Right Cessation
- 1983-01-18 IT IT19161/83A patent/IT1167553B/it active
- 1983-01-19 ES ES519100A patent/ES519100A0/es active Granted
- 1983-01-19 BE BE0/209936A patent/BE895655A/fr not_active IP Right Cessation
- 1983-01-20 JP JP58006767A patent/JPS58125243A/ja active Granted
- 1983-01-20 DE DE19833301702 patent/DE3301702A1/de active Granted
- 1983-01-20 CA CA000419912A patent/CA1194229A/en not_active Expired
- 1983-01-20 AU AU10635/83A patent/AU552691B2/en not_active Ceased
- 1983-01-21 FR FR8300906A patent/FR2520145A1/fr active Granted
-
1985
- 1985-12-20 SG SG970/85A patent/SG97085G/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE3301702A1 (de) | 1983-07-28 |
ES8400833A1 (es) | 1983-11-01 |
GB2113872A (en) | 1983-08-10 |
AU552691B2 (en) | 1986-06-12 |
AU1063583A (en) | 1983-07-28 |
KR880001174B1 (ko) | 1988-07-02 |
ES519100A0 (es) | 1983-11-01 |
FR2520145A1 (fr) | 1983-07-22 |
DE3301702C2 (de) | 1991-05-08 |
CA1194229A (en) | 1985-09-24 |
KR840003509A (ko) | 1984-09-08 |
GB8301154D0 (en) | 1983-02-16 |
GB2113872B (en) | 1985-09-25 |
IT8319161A0 (it) | 1983-01-18 |
SG97085G (en) | 1986-07-25 |
BE895655A (fr) | 1983-07-19 |
IT1167553B (it) | 1987-05-13 |
US4446545A (en) | 1984-05-01 |
FR2520145B1 (de) | 1984-12-28 |
JPH0332143B2 (de) | 1991-05-10 |
JPS58125243A (ja) | 1983-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL8200208A (nl) | Inrichting voor het uitlezen van een schijfvormige registratiedrager. | |
US4864118A (en) | Optical scanning unit with tracking error detection | |
US4358774A (en) | Apparatus and method for controlling focus in a recording system | |
US4006293A (en) | Apparatus for reading a flat record carrier with an optically readable information structure | |
US5768227A (en) | Optical information recording and or reproducing apparatus and method for irradiating a recording medium having a plurality of information tracks | |
JP3544847B2 (ja) | 光学的情報再生方法および装置 | |
US4357696A (en) | Optical scanning apparatus with focussing system | |
GB2141266A (en) | Apparatus for producing a tracking servo signal for use in an optical pick-up | |
US5109367A (en) | Optical information recording and reproducing apparatus performing focus and/or track control by normalized error signals | |
NL8101278A (nl) | Registratiestelsel. | |
JP2602019B2 (ja) | 光デイスク装置 | |
JP3720851B2 (ja) | 光学式走査装置 | |
KR850001654B1 (ko) | 기록시스템에서의 촛점 조절장치 | |
NL8105347A (nl) | Inrichting voor het optisch aftasten van een schijfvormige registratiedrager. | |
US6084835A (en) | Device for scanning optical discs using phase detection in a system with significant objective lens movement | |
HU199032B (en) | Apparatus for the playback of data | |
US4492856A (en) | Apparatus for effecting focus control for use in optical disc player | |
JPS5845630A (ja) | 情報読取装置における記録トラツクとピツクアツプとのトラツク直交方向相対位置制御装置 | |
JP2889236B2 (ja) | 光ディスク装置におけるトラッキングサーボ方式 | |
JPH011131A (ja) | 光ディスク装置におけるトラッキングサ−ボ方式 | |
JPH04502978A (ja) | 光学式走査装置 | |
JP2780185B2 (ja) | フォーカスサーチ方法 | |
JPS5853033A (ja) | 光学式記録情報再生装置 | |
JPH0770072B2 (ja) | 光学式情報記録再生装置 | |
JPH0770068B2 (ja) | 光学式情報記録再生装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1B | A search report has been drawn up | ||
BV | The patent application has lapsed |