CA1072679A - Apparatus for reading a flat record carrier with an optically readable information structure - Google Patents
Apparatus for reading a flat record carrier with an optically readable information structureInfo
- Publication number
- CA1072679A CA1072679A CA246,519A CA246519A CA1072679A CA 1072679 A CA1072679 A CA 1072679A CA 246519 A CA246519 A CA 246519A CA 1072679 A CA1072679 A CA 1072679A
- Authority
- CA
- Canada
- Prior art keywords
- detector
- read
- detectors
- radiation
- focussing
- 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
Links
- 230000005855 radiation Effects 0.000 claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 30
- 230000001154 acute effect Effects 0.000 claims 2
- 230000005693 optoelectronics Effects 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000011896 sensitive detection Methods 0.000 abstract 1
- 210000001747 pupil Anatomy 0.000 description 16
- 239000013598 vector Substances 0.000 description 12
- 108010068032 caltractin Proteins 0.000 description 4
- 229920000136 polysorbate Polymers 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 101150072084 BCAM gene Proteins 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000905957 Channa melasoma Species 0.000 description 1
- 241000272470 Circus Species 0.000 description 1
- 241000479907 Devia <beetle> Species 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 101000715490 Paramecium tetraurelia Caltractin ICL1f Proteins 0.000 description 1
- 102000017795 Perilipin-1 Human genes 0.000 description 1
- 108010067162 Perilipin-1 Proteins 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 101150105133 RRAD gene Proteins 0.000 description 1
- 101150026794 SHO1 gene Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- VREFGVBLTWBCJP-UHFFFAOYSA-N alprazolam Chemical compound C12=CC(Cl)=CC=C2N2C(C)=NN=C2CN=C1C1=CC=CC=C1 VREFGVBLTWBCJP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001360 synchronised effect 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
-
- 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
- G11B7/0908—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 focusing only
- G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Automatic Focus Adjustment (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7502373,A NL177157C (nl) | 1975-02-28 | 1975-02-28 | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestruktuur. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1072679A true CA1072679A (en) | 1980-02-26 |
Family
ID=19823273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA246,519A Expired CA1072679A (en) | 1975-02-28 | 1976-02-25 | Apparatus for reading a flat record carrier with an optically readable information structure |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4006293A (en, 2012) |
| JP (1) | JPS574016B2 (en, 2012) |
| AR (1) | AR208585A1 (en, 2012) |
| AT (1) | AT347149B (en, 2012) |
| AU (1) | AU505234B2 (en, 2012) |
| BE (1) | BE838982A (en, 2012) |
| BR (1) | BR7601175A (en, 2012) |
| CA (1) | CA1072679A (en, 2012) |
| CH (1) | CH601888A5 (en, 2012) |
| DE (1) | DE2606006C3 (en, 2012) |
| DK (1) | DK141184B (en, 2012) |
| FR (1) | FR2302646A1 (en, 2012) |
| GB (1) | GB1533888A (en, 2012) |
| IT (1) | IT1057601B (en, 2012) |
| NL (1) | NL177157C (en, 2012) |
| NO (1) | NO760631L (en, 2012) |
| NZ (1) | NZ180117A (en, 2012) |
| PL (1) | PL106758B1 (en, 2012) |
| SE (1) | SE411601B (en, 2012) |
| ZA (1) | ZA76172B (en, 2012) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2325987A1 (fr) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | Dispositif de lecture optique d'un enregistrement |
| JPS5274218A (en) * | 1975-12-17 | 1977-06-22 | Mansei Kogyo Kk | Device for controlling focal point of optical information reader |
| NL7600843A (nl) * | 1976-01-28 | 1977-08-01 | Philips Nv | Inrichting voor het uitlezen van een registratie- drager waarop informatie, bijvoorbeeld en/of ge- luidsinformatie, is aangebracht. |
| DE2652936C3 (de) * | 1976-11-22 | 1980-11-27 | Bts-Systementwicklungs Gmbh, 1000 Berlin | Audiovisuelles Wiedergabegerät |
| US4371899A (en) * | 1978-03-27 | 1983-02-01 | Discovision Associates | Time base error correction system for player |
| SE7813460L (sv) * | 1978-03-27 | 1979-09-28 | Mca Disco Vision | Videoskivspelare |
| US4370679A (en) * | 1978-03-27 | 1983-01-25 | Discovision Associates | Gain correction system for videodisc player apparatus |
| US4358796A (en) * | 1978-03-27 | 1982-11-09 | Discovision Associates | Spindle servo system for videodisc player |
| NL7803517A (nl) * | 1978-04-03 | 1979-10-05 | Philips Nv | Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen. |
| NL7803969A (nl) * | 1978-04-14 | 1979-10-16 | Philips Nv | Opto-elektronisch fokusfout-detektiestelsel. |
| NL7805069A (nl) * | 1978-05-11 | 1979-11-13 | Philips Nv | Inrichting voor puntsgewijze aftasting van een infor- matievlak. |
| NL7904724A (nl) * | 1979-06-18 | 1980-12-22 | Philips Nv | Optische aftastinrichting met fokusseerstelsel. |
| US4349901A (en) * | 1980-06-20 | 1982-09-14 | Eastman Kodak Company | Apparatus and method for reading optical discs |
| US4484319A (en) * | 1980-09-19 | 1984-11-20 | Matsushita Electric Industrial Co., Ltd. | Apparatus for locating a track on disc-like optical information carriers |
| JPS57105828A (en) * | 1980-12-19 | 1982-07-01 | Matsushita Electric Ind Co Ltd | Optical disk recording and reproducing system |
| JPS57111838A (en) * | 1980-12-27 | 1982-07-12 | Olympus Optical Co Ltd | Optical information reader |
| JPS57187071U (en, 2012) * | 1981-05-25 | 1982-11-27 | ||
| US4464567A (en) * | 1981-06-30 | 1984-08-07 | Storage Technology Corporation | Photoelectric information and focus detector |
| US4458144A (en) * | 1981-06-30 | 1984-07-03 | Storage Technology Corporation | Apparatus for reading information stored in a track pattern on a radiation reflecting record |
| JPS5856236A (ja) * | 1981-09-28 | 1983-04-02 | Hitachi Ltd | 光学的トラック位置検出装置およびそれを用いた光学的記録再生装置 |
| JPS59198542A (ja) * | 1983-04-26 | 1984-11-10 | Sony Corp | 光学デイスクプレ−ヤ |
| US4740940A (en) * | 1985-03-11 | 1988-04-26 | Matsushita Electric Industrial Co., Ltd. | Optical information read apparatus |
| JPH0640392B2 (ja) * | 1986-08-29 | 1994-05-25 | 三菱電機株式会社 | 光学式情報記録再生装置の集光スポツト位置検出装置 |
| JPH0777048B2 (ja) * | 1987-06-26 | 1995-08-16 | 三菱電機株式会社 | 記録媒体駆動装置 |
| US5179268A (en) * | 1987-07-22 | 1993-01-12 | Omron Tateisi Electronic Co. | Apparatus for detecting inclination of an optical card |
| DE3852350T2 (de) * | 1987-07-22 | 1995-07-27 | Omron Tateisi Electronics Co | Gerät zur Feststellung der Neigung einer optischen Karte. |
| US4998235A (en) * | 1987-11-17 | 1991-03-05 | Matsushita Electric Industrial Co., Ltd. | Focus detection system for an optical disk drive using photo sensor elements in the far field of information pits |
| US4958245A (en) * | 1988-04-07 | 1990-09-18 | Insite Peripherals, Inc. | Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities |
| US5121371A (en) * | 1990-06-18 | 1992-06-09 | Bernoulli Optical Systems Company | Optical servo system for magnetic disk |
| US5677903A (en) * | 1991-03-25 | 1997-10-14 | U.S. Phillips Corporation | Multi-layer information storage system with improved aberration correction |
| JP3063805B2 (ja) * | 1991-02-25 | 2000-07-12 | オリンパス光学工業株式会社 | 光学式情報再生装置および記録媒体 |
| JP3157873B2 (ja) * | 1991-11-15 | 2001-04-16 | パイオニア株式会社 | 光ピックアップ装置における焦点制御装置 |
| EP0582446B1 (en) * | 1992-07-31 | 2000-05-10 | Matsushita Electric Industrial Co., Ltd. | Optical data storage medium |
| JP2563747B2 (ja) * | 1993-05-31 | 1996-12-18 | 松下電器産業株式会社 | 光学ディスク装置 |
| JPH11501443A (ja) * | 1995-12-27 | 1999-02-02 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 光学的に読取可能な記録媒体を走査する装置 |
| DE69622023T2 (de) * | 1995-12-27 | 2003-03-06 | Koninklijke Philips Electronics N.V., Eindhoven | Gerät zur wiedergabe eines optisch lesbaren aufzeichnungsträgers |
| US8064055B2 (en) * | 2008-02-14 | 2011-11-22 | J.A. Woollam Co., Inc. | System and method of aligning a sample |
| US8638437B2 (en) | 2008-02-14 | 2014-01-28 | J.A. Woollam Co., Inc. | System and method of aligning a sample |
| JP5207240B2 (ja) * | 2008-08-11 | 2013-06-12 | 学校法人金井学園 | 光記録再生媒体の焦点誤差検出方法、およびそれに用いる発光装置のビーム分割調節器 |
| US8983787B1 (en) | 2008-12-12 | 2015-03-17 | Martin M. Liphardt | Method of evaluating data quality |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2266932B1 (en, 2012) * | 1973-03-02 | 1977-09-02 | Thomson Brandt | |
| US3919465A (en) * | 1974-01-14 | 1975-11-11 | Zenith Radio Corp | Optical system for directly detecting spatially recorded signals |
-
1975
- 1975-02-28 NL NLAANVRAGE7502373,A patent/NL177157C/xx not_active IP Right Cessation
- 1975-04-16 US US05/568,727 patent/US4006293A/en not_active Expired - Lifetime
-
1976
- 1976-01-13 ZA ZA760172A patent/ZA76172B/xx unknown
- 1976-02-11 AR AR262205A patent/AR208585A1/es active
- 1976-02-14 DE DE2606006A patent/DE2606006C3/de not_active Expired
- 1976-02-25 DK DK79576AA patent/DK141184B/da unknown
- 1976-02-25 CA CA246,519A patent/CA1072679A/en not_active Expired
- 1976-02-25 GB GB7415/76A patent/GB1533888A/en not_active Expired
- 1976-02-25 NO NO760631A patent/NO760631L/no unknown
- 1976-02-25 NZ NZ180117A patent/NZ180117A/xx unknown
- 1976-02-25 CH CH234276A patent/CH601888A5/xx not_active IP Right Cessation
- 1976-02-25 BR BR7601175A patent/BR7601175A/pt unknown
- 1976-02-25 AU AU11405/76A patent/AU505234B2/en not_active Expired
- 1976-02-25 SE SE7602296A patent/SE411601B/xx not_active IP Right Cessation
- 1976-02-25 IT IT67434/76A patent/IT1057601B/it active
- 1976-02-26 AT AT142276A patent/AT347149B/de not_active IP Right Cessation
- 1976-02-26 PL PL1976187533A patent/PL106758B1/pl unknown
- 1976-02-26 JP JP1948876A patent/JPS574016B2/ja not_active Expired
- 1976-02-26 BE BE164685A patent/BE838982A/xx not_active IP Right Cessation
- 1976-02-27 FR FR7605470A patent/FR2302646A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51110214A (en, 2012) | 1976-09-29 |
| DK79576A (en, 2012) | 1976-08-29 |
| DK141184B (da) | 1980-01-28 |
| FR2302646B1 (en, 2012) | 1982-05-07 |
| BE838982A (fr) | 1976-08-26 |
| SE411601B (sv) | 1980-01-14 |
| SE7602296L (sv) | 1976-08-30 |
| NL7502373A (nl) | 1976-08-31 |
| IT1057601B (it) | 1982-03-30 |
| FR2302646A1 (fr) | 1976-09-24 |
| JPS574016B2 (en, 2012) | 1982-01-23 |
| NO760631L (en, 2012) | 1976-08-31 |
| ATA142276A (de) | 1978-04-15 |
| DK141184C (en, 2012) | 1980-07-07 |
| DE2606006A1 (de) | 1976-09-09 |
| NL177157B (nl) | 1985-03-01 |
| AT347149B (de) | 1978-12-11 |
| AR208585A1 (es) | 1977-02-15 |
| BR7601175A (pt) | 1976-09-14 |
| ZA76172B (en) | 1977-08-31 |
| NL177157C (nl) | 1985-08-01 |
| PL106758B1 (pl) | 1980-01-31 |
| US4006293A (en) | 1977-02-01 |
| AU1140576A (en) | 1977-09-01 |
| GB1533888A (en) | 1978-11-29 |
| NZ180117A (en) | 1978-04-28 |
| DE2606006B2 (de) | 1978-01-26 |
| AU505234B2 (en) | 1979-11-15 |
| CH601888A5 (en, 2012) | 1978-07-14 |
| DE2606006C3 (de) | 1978-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |