CN100380497C - 信号处理装置以及信号处理方法 - Google Patents
信号处理装置以及信号处理方法 Download PDFInfo
- Publication number
- CN100380497C CN100380497C CNB038041049A CN03804104A CN100380497C CN 100380497 C CN100380497 C CN 100380497C CN B038041049 A CNB038041049 A CN B038041049A CN 03804104 A CN03804104 A CN 03804104A CN 100380497 C CN100380497 C CN 100380497C
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- CN
- China
- Prior art keywords
- signal
- mentioned
- input
- output
- control
- 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
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
-
- 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
- G11B7/0945—Methods for initialising servos, start-up sequences
-
- 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
- G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Analogue/Digital Conversion (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (24)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002064879 | 2002-03-11 | ||
JP64879/2002 | 2002-03-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1633691A CN1633691A (zh) | 2005-06-29 |
CN100380497C true CN100380497C (zh) | 2008-04-09 |
Family
ID=27764458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB038041049A Expired - Fee Related CN100380497C (zh) | 2002-03-11 | 2003-03-11 | 信号处理装置以及信号处理方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7215632B2 (zh) |
EP (1) | EP1345221A3 (zh) |
JP (1) | JP4081018B2 (zh) |
CN (1) | CN100380497C (zh) |
WO (1) | WO2003077248A1 (zh) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3996601B2 (ja) * | 2002-12-27 | 2007-10-24 | 松下電器産業株式会社 | 信号処理装置及び信号処理方法 |
KR20060019577A (ko) * | 2003-06-11 | 2006-03-03 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광 디스크 드라이브 장치 |
US7620101B1 (en) * | 2003-09-24 | 2009-11-17 | Cypress Semiconductor Corporation | Equalizer circuit, communication system, and method that is adaptive to varying launch amplitudes for reducing receiver error |
WO2005057575A1 (en) * | 2003-12-08 | 2005-06-23 | Koninklijke Philips Electronics N.V. | Method and system for controlling the level of a data signal read from an optical disc |
JP4079902B2 (ja) * | 2004-03-16 | 2008-04-23 | Necエレクトロニクス株式会社 | 光ディスク装置とそのトラッキング制御方法 |
US7440525B2 (en) * | 2004-08-27 | 2008-10-21 | Mindspeed Technologies, Inc. | Dynamic range signal to noise optimization system and method for receiver |
GB2422923B (en) * | 2005-02-03 | 2008-10-29 | Hewlett Packard Development Co | Diagnosis of a data read system |
US7668053B2 (en) | 2005-06-03 | 2010-02-23 | Zoran Corporation | Processing an information carrying signal |
KR100652432B1 (ko) | 2005-09-08 | 2006-12-01 | 삼성전자주식회사 | 광디스크 기록/재생 기기의 신호 처리 장치 및 신호 처리방법 |
US20070058502A1 (en) * | 2005-09-12 | 2007-03-15 | Chi-Pei Huang | Servo system and related method of adjusting the magnitude of detecting signals outputted from a pick-up head before utilizing the detecting signals to generate servo signals |
CN101061546A (zh) | 2005-09-28 | 2007-10-24 | 松下电器产业株式会社 | 光盘装置 |
JP4130831B2 (ja) * | 2005-10-07 | 2008-08-06 | 松下電器産業株式会社 | 動的dcオフセット除去装置及び動的dcオフセット除去方法 |
US20070086315A1 (en) * | 2005-10-19 | 2007-04-19 | Mediatek Inc. | Optical disc apparatuses |
US7684291B2 (en) * | 2006-06-05 | 2010-03-23 | Mediatek Inc. | Method and apparatus for blank detection of an optical disc |
US7796480B2 (en) * | 2006-06-05 | 2010-09-14 | Mediatek Inc. | Apparatus and methods for light spot servo signal detection |
US7724090B2 (en) * | 2006-06-05 | 2010-05-25 | Mediatek Inc. | Loop control apparatus and method thereof |
US20070280079A1 (en) * | 2006-06-05 | 2007-12-06 | Yuh Cheng | Asymmetry measurement apparatus |
CN101086854B (zh) * | 2006-06-05 | 2011-06-01 | 联发科技股份有限公司 | 回路控制装置及其方法 |
US8416845B1 (en) * | 2006-07-11 | 2013-04-09 | Altera Corporation | Decision feedback equalization for variable input amplitude |
JP4996612B2 (ja) * | 2006-09-19 | 2012-08-08 | パナソニック株式会社 | 光ディスク記録再生装置 |
US20080101795A1 (en) * | 2006-10-27 | 2008-05-01 | Craig Schulz | Data signal amplitude and cross-point detectors in an optical modulator control system |
JP2008167303A (ja) * | 2006-12-28 | 2008-07-17 | Fujitsu Ltd | データサンプリング回路及びデータサンプリング方法 |
US8095762B1 (en) | 2007-02-27 | 2012-01-10 | Nvidia Corporation | Low latency synchronous memory performance switching with drift refresh |
KR20100028655A (ko) * | 2007-06-27 | 2010-03-12 | 파나소닉 주식회사 | 신호 처리 장치 |
JP2009146491A (ja) * | 2007-12-13 | 2009-07-02 | Hitachi Ltd | 光ディスク装置 |
US8451949B2 (en) * | 2008-10-07 | 2013-05-28 | Realtek Semiconductor Corp. | Clock-data recovery and method for binary signaling using low resolution ADC |
JP2010147943A (ja) * | 2008-12-19 | 2010-07-01 | Sony Corp | 情報処理装置、及び信号伝送方法 |
JP4697298B2 (ja) * | 2008-12-19 | 2011-06-08 | ソニー株式会社 | コンパレータおよび光ディスク記録再生装置 |
WO2010123573A1 (en) | 2009-04-23 | 2010-10-28 | Maxlinear, Inc. | Channel-sensitive power control |
JP4941515B2 (ja) * | 2009-07-02 | 2012-05-30 | 富士通株式会社 | 受信回路、オフセット調整方法、及び送受信システム |
US8830808B1 (en) * | 2009-09-10 | 2014-09-09 | Marvell International Ltd. | Method and apparatus for zero offset and gain start |
US8081395B1 (en) * | 2009-12-15 | 2011-12-20 | Western Digital Technologies, Inc. | Continuous digital offset cancellation |
KR20120121779A (ko) * | 2011-04-27 | 2012-11-06 | 삼성전기주식회사 | 자기 검출 회로의 오프셋 보상 장치 및 그 방법 |
US8929017B2 (en) * | 2011-12-12 | 2015-01-06 | Lsi Corporation | Systems and methods for SNR measurement using equalized data |
KR101523168B1 (ko) * | 2014-01-27 | 2015-05-26 | 엘에스산전 주식회사 | 아날로그 입력모듈의 오프셋 및 게인 설정 시스템 및 방법 |
US11064446B2 (en) * | 2016-04-26 | 2021-07-13 | Anatog Devices, Inc. | Apparatus and methods for wideband receivers |
US9729132B1 (en) * | 2016-07-28 | 2017-08-08 | Nxp B.V. | Precise signal swing squelch detector |
JP2022059467A (ja) * | 2020-10-01 | 2022-04-13 | 豊田合成株式会社 | 位置検出装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06187654A (ja) * | 1992-12-18 | 1994-07-08 | Kenwood Corp | 光ディスク装置のディフェクト検出回路および光ディスク装置 |
JPH0896361A (ja) * | 1994-09-27 | 1996-04-12 | Nec Corp | 光ディスク装置における傷検出回路 |
JPH09259544A (ja) * | 1995-04-05 | 1997-10-03 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JPH1031821A (ja) * | 1996-07-16 | 1998-02-03 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JP2002015422A (ja) * | 2000-04-26 | 2002-01-18 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3067298B2 (ja) * | 1991-08-09 | 2000-07-17 | ソニー株式会社 | 光ディスクのデータ再生装置と再生方法 |
JP2889803B2 (ja) * | 1993-11-22 | 1999-05-10 | 三洋電機株式会社 | レベル設定回路 |
US5587975A (en) * | 1994-10-24 | 1996-12-24 | Sony Corporation | Magneto-optical disk reproducing apparatus with gain and offset controlled by a reference pattern read from the disk |
US5777967A (en) * | 1995-04-05 | 1998-07-07 | Matsushita Electric Industrial Co., Ltd. | Optical disk device |
EP0750306B1 (en) * | 1995-06-22 | 2002-06-05 | Matsushita Electric Industrial Co., Ltd. | A method of maximum likelihood decoding and a digital information playback apparatus |
US6069866A (en) * | 1997-10-23 | 2000-05-30 | Cirrus Logic, Inc. | System and method for coarse gain control of wide band amplifiers |
KR19990051851A (ko) * | 1997-12-20 | 1999-07-05 | 구본준 | 디스크 재생 장치의 리드 회로 |
US6104682A (en) * | 1998-07-23 | 2000-08-15 | Matsushita Electric Industrial Co., Ltd. | Disk apparatus having a data reproducing system using a digital PLL |
JP3856418B2 (ja) * | 1998-09-10 | 2006-12-13 | パイオニア株式会社 | 記録媒体プレーヤのサーボ装置 |
JP3486145B2 (ja) * | 2000-01-17 | 2004-01-13 | 松下電器産業株式会社 | デジタル記録データ再生装置 |
US6434098B2 (en) * | 2000-04-26 | 2002-08-13 | Matsushita Electric Industrial Co., Ltd. | Optical disc device |
JP2002319239A (ja) | 2001-04-20 | 2002-10-31 | Matsushita Electric Ind Co Ltd | 情報再生装置 |
-
2003
- 2003-03-11 JP JP2003575380A patent/JP4081018B2/ja not_active Expired - Fee Related
- 2003-03-11 EP EP03004984A patent/EP1345221A3/en not_active Withdrawn
- 2003-03-11 US US10/479,275 patent/US7215632B2/en not_active Expired - Fee Related
- 2003-03-11 WO PCT/JP2003/002835 patent/WO2003077248A1/ja active Application Filing
- 2003-03-11 CN CNB038041049A patent/CN100380497C/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06187654A (ja) * | 1992-12-18 | 1994-07-08 | Kenwood Corp | 光ディスク装置のディフェクト検出回路および光ディスク装置 |
JPH0896361A (ja) * | 1994-09-27 | 1996-04-12 | Nec Corp | 光ディスク装置における傷検出回路 |
JPH09259544A (ja) * | 1995-04-05 | 1997-10-03 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JPH1031821A (ja) * | 1996-07-16 | 1998-02-03 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JP2002015422A (ja) * | 2000-04-26 | 2002-01-18 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1345221A2 (en) | 2003-09-17 |
US7215632B2 (en) | 2007-05-08 |
US20040172148A1 (en) | 2004-09-02 |
JPWO2003077248A1 (ja) | 2005-07-07 |
EP1345221A3 (en) | 2007-12-26 |
JP4081018B2 (ja) | 2008-04-23 |
WO2003077248A1 (fr) | 2003-09-18 |
CN1633691A (zh) | 2005-06-29 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: KELAIBO INNOVATION CO., LTD. Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20141125 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Osaka Patentee after: Matsushita Electric Industrial Co.,Ltd. Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co.,Ltd. |
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TR01 | Transfer of patent right |
Effective date of registration: 20141125 Address after: California, USA Patentee after: Craib Innovations Ltd. Address before: Osaka Patentee before: Matsushita Electric Industrial Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 Termination date: 20170311 |
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CF01 | Termination of patent right due to non-payment of annual fee |