DE69931231T2 - Verstärkervorrichtung mit digital steuerbarer Verstärkung und Lesegerät für optische Platten mit einer solchen Vorrichtung - Google Patents
Verstärkervorrichtung mit digital steuerbarer Verstärkung und Lesegerät für optische Platten mit einer solchen Vorrichtung Download PDFInfo
- Publication number
- DE69931231T2 DE69931231T2 DE69931231T DE69931231T DE69931231T2 DE 69931231 T2 DE69931231 T2 DE 69931231T2 DE 69931231 T DE69931231 T DE 69931231T DE 69931231 T DE69931231 T DE 69931231T DE 69931231 T2 DE69931231 T2 DE 69931231T2
- Authority
- DE
- Germany
- Prior art keywords
- sources
- output
- current
- control
- switches
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims description 16
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 3
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 description 2
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 description 2
- 102100021133 Nuclear protein 1 Human genes 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- 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
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
Landscapes
- Analogue/Digital Conversion (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9812495 | 1998-10-06 | ||
| FR9812495A FR2784820B1 (fr) | 1998-10-06 | 1998-10-06 | Dispositif amplificateur a gain commandable numeriquement et appareil lecteur de disques optiques incorporant un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69931231D1 DE69931231D1 (de) | 2006-06-14 |
| DE69931231T2 true DE69931231T2 (de) | 2007-02-22 |
Family
ID=9531240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69931231T Expired - Lifetime DE69931231T2 (de) | 1998-10-06 | 1999-09-17 | Verstärkervorrichtung mit digital steuerbarer Verstärkung und Lesegerät für optische Platten mit einer solchen Vorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6184752B1 (enExample) |
| EP (1) | EP0993110B1 (enExample) |
| JP (1) | JP4755743B2 (enExample) |
| CN (1) | CN1158651C (enExample) |
| DE (1) | DE69931231T2 (enExample) |
| FR (1) | FR2784820B1 (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756576B1 (en) * | 2000-08-30 | 2004-06-29 | Micron Technology, Inc. | Imaging system having redundant pixel groupings |
| FR2820907A1 (fr) * | 2001-02-13 | 2002-08-16 | St Microelectronics Sa | Circuit de normalisation a tension d'erreur reduite |
| JP3857123B2 (ja) * | 2001-12-14 | 2006-12-13 | シャープ株式会社 | 受光アンプ回路及びそれを用いた光ディスク記録再生装置 |
| KR100524949B1 (ko) * | 2003-02-27 | 2005-11-01 | 삼성전자주식회사 | 광디스크의 배속에 따라 증폭이득을 제어하는 광신호변환장치 및 그의 증폭이득 제어방법 |
| JP4068590B2 (ja) * | 2004-05-06 | 2008-03-26 | 株式会社東芝 | 電流電圧変換回路 |
| JP2006279703A (ja) * | 2005-03-30 | 2006-10-12 | Matsushita Electric Ind Co Ltd | 可変利得増幅器並びにそれを用いたミキサ及び直交変調器 |
| CN100527609C (zh) * | 2005-10-26 | 2009-08-12 | 威盛电子股份有限公司 | 可变增益放大电路及相关方法 |
| JP4883674B2 (ja) * | 2006-01-05 | 2012-02-22 | 株式会社山武 | 受光アンプ |
| US7643573B2 (en) * | 2006-03-17 | 2010-01-05 | Cirrus Logic, Inc. | Power management in a data acquisition system |
| JP5924924B2 (ja) | 2011-12-15 | 2016-05-25 | キヤノン株式会社 | 電子回路 |
| JP5812959B2 (ja) * | 2011-12-15 | 2015-11-17 | キヤノン株式会社 | 撮像装置 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940760A (en) * | 1975-03-21 | 1976-02-24 | Analog Devices, Inc. | Digital-to-analog converter with current source transistors operated accurately at different current densities |
| US4064506A (en) * | 1976-04-08 | 1977-12-20 | Rca Corporation | Current mirror amplifiers with programmable current gains |
| US4250461A (en) * | 1979-04-20 | 1981-02-10 | Rca Corporation | Current mirror amplifier |
| US4439673A (en) * | 1981-08-27 | 1984-03-27 | Sprague Electric Company | Two terminal integrated circuit light-sensor |
| US4485301A (en) * | 1982-02-01 | 1984-11-27 | Sprague Electric Company | Linear two-terminal integrated circuit photo sensor |
| JPS61285808A (ja) * | 1985-06-11 | 1986-12-16 | Sharp Corp | 電流増幅回路 |
| JPH0348506A (ja) * | 1989-04-19 | 1991-03-01 | Nec Corp | 電流可変回路 |
| JP2882163B2 (ja) * | 1992-02-26 | 1999-04-12 | 日本電気株式会社 | 比較器 |
| JP2988795B2 (ja) * | 1992-05-29 | 1999-12-13 | シャープ株式会社 | 受光増幅装置 |
| US5373253A (en) * | 1993-09-20 | 1994-12-13 | International Business Machines Corporation | Monolithic current mirror circuit employing voltage feedback for β-independent dynamic range |
| WO1996007927A2 (en) | 1994-09-01 | 1996-03-14 | Philips Electronics N.V. | Transconductance amplifier having a digitally variable transconductance as well as a variable gain stage and an automatic gain control circuit comprising such a variable gain stage |
| FR2733098B1 (fr) * | 1995-04-11 | 1997-07-04 | Sgs Thomson Microelectronics | Amplificateur de courant |
| JPH1093436A (ja) * | 1996-09-19 | 1998-04-10 | Oki Electric Ind Co Ltd | デジタル・アナログ変換回路 |
| DE19644996A1 (de) | 1996-10-30 | 1998-05-07 | Thomson Brandt Gmbh | Eingangssignalverstärker |
| US5753903A (en) * | 1996-11-05 | 1998-05-19 | Medar, Inc. | Method and system for controlling light intensity in a machine vision system |
-
1998
- 1998-10-06 FR FR9812495A patent/FR2784820B1/fr not_active Expired - Fee Related
-
1999
- 1999-09-17 DE DE69931231T patent/DE69931231T2/de not_active Expired - Lifetime
- 1999-09-17 EP EP99402282A patent/EP0993110B1/en not_active Expired - Lifetime
- 1999-09-22 CN CNB991194179A patent/CN1158651C/zh not_active Expired - Fee Related
- 1999-10-05 JP JP28473299A patent/JP4755743B2/ja not_active Expired - Fee Related
- 1999-10-06 US US09/413,393 patent/US6184752B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2784820A1 (fr) | 2000-04-21 |
| DE69931231D1 (de) | 2006-06-14 |
| US6184752B1 (en) | 2001-02-06 |
| CN1158651C (zh) | 2004-07-21 |
| EP0993110A1 (en) | 2000-04-12 |
| EP0993110B1 (en) | 2006-05-10 |
| CN1250209A (zh) | 2000-04-12 |
| JP2000201037A (ja) | 2000-07-18 |
| FR2784820B1 (fr) | 2000-12-08 |
| JP4755743B2 (ja) | 2011-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |