DE69625627T2 - Detektionsschaltung für ein Lichtsignal - Google Patents
Detektionsschaltung für ein LichtsignalInfo
- Publication number
- DE69625627T2 DE69625627T2 DE69625627T DE69625627T DE69625627T2 DE 69625627 T2 DE69625627 T2 DE 69625627T2 DE 69625627 T DE69625627 T DE 69625627T DE 69625627 T DE69625627 T DE 69625627T DE 69625627 T2 DE69625627 T2 DE 69625627T2
- Authority
- DE
- Germany
- Prior art keywords
- detection circuit
- light signal
- light
- signal
- detection
- 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
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
-
- 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
- G11B7/131—Arrangement of detectors in a multiple array
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
- G11B11/10597—Adaptations for transducing various formats on the same or different 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
- G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/10515—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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Amplifiers (AREA)
- Optical Head (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1469195 | 1995-01-31 | ||
JP1469295 | 1995-01-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69625627D1 DE69625627D1 (de) | 2003-02-06 |
DE69625627T2 true DE69625627T2 (de) | 2003-09-11 |
Family
ID=26350706
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69615474T Expired - Fee Related DE69615474T2 (de) | 1995-01-31 | 1996-01-31 | Detektionsschaltung für ein optisches signal |
DE69625627T Expired - Fee Related DE69625627T2 (de) | 1995-01-31 | 1996-01-31 | Detektionsschaltung für ein Lichtsignal |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69615474T Expired - Fee Related DE69615474T2 (de) | 1995-01-31 | 1996-01-31 | Detektionsschaltung für ein optisches signal |
Country Status (6)
Country | Link |
---|---|
US (2) | US5805558A (de) |
EP (2) | EP0753848B1 (de) |
KR (1) | KR100406477B1 (de) |
CN (1) | CN1088233C (de) |
DE (2) | DE69615474T2 (de) |
WO (1) | WO1996024131A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3835653B2 (ja) * | 1998-04-23 | 2006-10-18 | ミツミ電機株式会社 | 光学ヘッドの出力制御回路 |
JP2000147021A (ja) * | 1998-11-11 | 2000-05-26 | Ando Electric Co Ltd | 電気光学サンプリングオシロスコープ用受光回路 |
KR100315637B1 (ko) * | 1999-03-31 | 2001-12-12 | 윤종용 | 씨디-알더블유의 재생/기록이 가능한 디브이디-롬 광학계 |
JP3478760B2 (ja) * | 1999-05-19 | 2003-12-15 | キヤノン株式会社 | 信号処理回路及びそれの駆動方法並びに放射線撮像システム |
JP4499265B2 (ja) * | 2000-09-26 | 2010-07-07 | 株式会社アドバンテスト | 光検出器 |
US6809596B2 (en) | 2002-12-20 | 2004-10-26 | Intel Corporation | DC offset cancellation circuit, system and method |
US6774728B2 (en) * | 2002-12-20 | 2004-08-10 | Intel Corporation | Transimpedance amplifier |
US6833762B2 (en) * | 2002-12-20 | 2004-12-21 | Intel Corporation | Transimpedance ampifier |
US6816010B2 (en) * | 2002-12-20 | 2004-11-09 | Intel Corporation | Transimpedance amplifier |
ITBO20040182A1 (it) * | 2004-04-01 | 2004-07-01 | Marposs Spa | Sistema e metodo per il controllo di pezzi meccanici, con trasmissioni di segnali via etere |
JP4972602B2 (ja) * | 2008-04-10 | 2012-07-11 | 株式会社日立製作所 | 光信号検出回路及びそれを用いた情報再生装置 |
CN101299638B (zh) * | 2008-06-27 | 2011-11-30 | 中兴通讯股份有限公司 | 一种光功率检测装置及方法 |
JP7327908B2 (ja) * | 2018-05-29 | 2023-08-16 | 浜松ホトニクス株式会社 | 光差分検出器及び検査装置 |
US10187948B1 (en) * | 2018-05-31 | 2019-01-22 | Pixart Imaging Inc. | Light control circuit and optical encoder system |
KR102075850B1 (ko) | 2018-12-17 | 2020-03-02 | 순천향대학교 산학협력단 | 세숫대야 |
KR102207002B1 (ko) * | 2019-04-19 | 2021-01-25 | 한화시스템 주식회사 | 광 검출 장치 |
FR3110000B1 (fr) * | 2020-05-06 | 2022-05-27 | Commissariat Energie Atomique | Capteur de courant basé sur l’effet Faraday dans un gaz atomique |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4691308A (en) * | 1984-04-19 | 1987-09-01 | Nippon Kogaku K. K. | Apparatus for reproducing information from magnetooptical recording medium |
JPH0651786B2 (ja) * | 1985-09-30 | 1994-07-06 | 株式会社東芝 | 半導体装置封止用エポキシ樹脂組成物 |
NL8602304A (nl) * | 1986-09-12 | 1988-04-05 | Optical Storage Int | Stralingsgevoelige detektieschakeling en optische uitlees- en/of registratie-inrichting voorzien van een dergelijke stralingsgevoelige detektieschakeling. |
US4785167A (en) * | 1987-08-26 | 1988-11-15 | International Business Machines Corporation | Photodetector having cascaded photoelements |
US5050144A (en) * | 1989-12-11 | 1991-09-17 | International Business Machines Corporation | Recording intensity modulated signals and polarization-modulated optical signals in the same area of a storage member |
US5105415A (en) * | 1989-12-11 | 1992-04-14 | International Business Machines Corporation | Detecting magnetooptic and intensity-modulated optical signals with the same detector |
KR920005116A (ko) * | 1990-08-31 | 1992-03-28 | 정용문 | 광검출신호의 잡음제거장치 |
US5136569A (en) * | 1990-09-28 | 1992-08-04 | International Business Machines Corporation | Optical disk recorder for diverse media types and having a predetermined initialization or start-up procedure |
JPH04205969A (ja) * | 1990-11-30 | 1992-07-28 | Canon Inc | 光学的情報記録再生装置 |
US5202875A (en) * | 1991-06-04 | 1993-04-13 | International Business Machines Corporation | Multiple data surface optical data storage system |
US5265085A (en) * | 1992-06-15 | 1993-11-23 | International Business Machines | Simultaneous MO and ROM optical disk signal detection |
EP0599387B1 (de) * | 1992-11-20 | 1998-05-13 | Koninklijke Philips Electronics N.V. | Vorrichtung zum magnetooptischen Lesen/Schreiben |
JPH06274924A (ja) * | 1993-03-24 | 1994-09-30 | Olympus Optical Co Ltd | 光学情報検出回路 |
-
1996
- 1996-01-31 WO PCT/JP1996/000190 patent/WO1996024131A1/ja active IP Right Grant
- 1996-01-31 KR KR1019960705157A patent/KR100406477B1/ko not_active IP Right Cessation
- 1996-01-31 EP EP96901501A patent/EP0753848B1/de not_active Expired - Lifetime
- 1996-01-31 EP EP01200724A patent/EP1102255B1/de not_active Expired - Lifetime
- 1996-01-31 CN CN96190174A patent/CN1088233C/zh not_active Expired - Fee Related
- 1996-01-31 DE DE69615474T patent/DE69615474T2/de not_active Expired - Fee Related
- 1996-01-31 US US08/704,721 patent/US5805558A/en not_active Expired - Fee Related
- 1996-01-31 DE DE69625627T patent/DE69625627T2/de not_active Expired - Fee Related
-
1998
- 1998-02-12 US US09/022,547 patent/US5910938A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1088233C (zh) | 2002-07-24 |
EP0753848A1 (de) | 1997-01-15 |
EP0753848B1 (de) | 2001-09-26 |
EP1102255B1 (de) | 2003-01-02 |
KR970701903A (ko) | 1997-04-12 |
DE69615474D1 (de) | 2001-10-31 |
DE69625627D1 (de) | 2003-02-06 |
KR100406477B1 (ko) | 2004-03-24 |
DE69615474T2 (de) | 2002-05-08 |
EP1102255A1 (de) | 2001-05-23 |
US5910938A (en) | 1999-06-08 |
US5805558A (en) | 1998-09-08 |
EP0753848A4 (de) | 1997-01-22 |
WO1996024131A1 (fr) | 1996-08-08 |
CN1148899A (zh) | 1997-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |