MXPA00012461A - Dispositivo para leer y/o escribir de un medio de grabacion optica. - Google Patents

Dispositivo para leer y/o escribir de un medio de grabacion optica.

Info

Publication number
MXPA00012461A
MXPA00012461A MXPA00012461A MXPA00012461A MXPA00012461A MX PA00012461 A MXPA00012461 A MX PA00012461A MX PA00012461 A MXPA00012461 A MX PA00012461A MX PA00012461 A MXPA00012461 A MX PA00012461A MX PA00012461 A MXPA00012461 A MX PA00012461A
Authority
MX
Mexico
Prior art keywords
scanning
writing
average value
reading
recording media
Prior art date
Application number
MXPA00012461A
Other languages
English (en)
Inventor
Kabutz Marten
Original Assignee
Thomson Brandt Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of MXPA00012461A publication Critical patent/MXPA00012461A/es

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
    • G11B7/004—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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor

Abstract

La presente invencion se refiere a un dispositivo para leer y/o escribir de un medio de grabacion optica (1) que tiene un explorador optico (2) para explorar el medio de grabacion (1) por medio de un haz de luz (3) y para generar senales de exploracion (HF) del haz reflejado (3), un seccionador de datos (5) para convertir una senal de exploracion (HF) transferida por el explorador optico (2) en una senal binaria (HP"), una unida de promediacion (6) para formar un valor promedio (M) de la senal de exploracion (HF, HF") como la senal de entrada del seccionador de datos (5), y una unidad de control '(14) para cambiar un parametro (T, OF) de la unidad de promediacion (6). El objeto de la presente invencion es proponer un dispositivo de este tipo y tambien un metodo adecuado para el mismo en el cual el valor promedio (M) se puede adaptar a disturbios durante la exploracion del medio de grabacion. De acuerdo con la invencion, esto se logra en virtud del hecho que la unida de control (14) tiene una unidad (8, 10) para transferir una unidad de comparacion (S, HFN) y un comparador (7, 11) para comparar el valor promedio (M) con este valor de comparacion (S, HFN), y acciona un cambio en el parametro (T, OF) en el caso de que el valor de comparacion se exceda o este sobresaliente.
MXPA00012461A 1999-12-20 2000-12-14 Dispositivo para leer y/o escribir de un medio de grabacion optica. MXPA00012461A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19961440A DE19961440A1 (de) 1999-12-20 1999-12-20 Gerät zum Lesen und/oder Schreiben optischer Aufzeichnungsträger

Publications (1)

Publication Number Publication Date
MXPA00012461A true MXPA00012461A (es) 2004-04-21

Family

ID=7933414

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA00012461A MXPA00012461A (es) 1999-12-20 2000-12-14 Dispositivo para leer y/o escribir de un medio de grabacion optica.

Country Status (12)

Country Link
US (1) US7369476B2 (es)
EP (1) EP1111597B1 (es)
JP (1) JP2001184448A (es)
KR (1) KR100682461B1 (es)
CN (1) CN1301501C (es)
DE (2) DE19961440A1 (es)
HK (1) HK1035252A1 (es)
ID (1) ID28663A (es)
MX (1) MXPA00012461A (es)
MY (1) MY142667A (es)
PL (1) PL196698B1 (es)
ZA (1) ZA200007712B (es)

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TW513702B (en) 2001-04-11 2002-12-11 Via Tech Inc Slicing level calibration method for track crossing signal and generation method of track crossing signal
JP2003338132A (ja) * 2002-05-20 2003-11-28 Teac Corp 信号処理回路
DE10357033A1 (de) * 2003-12-05 2005-06-30 Deutsche Thomson-Brandt Gmbh Aufzeichungs- und/oder Wiedergabegerät für optische Aufzeichnungsträger mit Mitteln zum Erhöhen der Auflösung eines Digital-Analog-Wandlers im Servoregelkreis
DE102004038370B4 (de) * 2004-08-06 2009-06-25 Austriamicrosystems Ag Adaptive Regelvorrichtung, Verwendung der Regelvorrichtung, Sensor mit einer derartigen Regelvorrichtung und adaptives Verfahren zur Selbstkompensation von Störsignalen eines Sensors
CN101310332B (zh) * 2005-11-14 2010-12-15 皇家飞利浦电子股份有限公司 一种用于检测光学载体上首标区域的方法和光驱
JP4586896B2 (ja) * 2008-06-24 2010-11-24 ソニー株式会社 光学モジュール及び光ピックアップ装置
US9626650B2 (en) 2011-04-14 2017-04-18 Elwha Llc Cost-effective resource apportionment technologies suitable for facilitating therapies
US10445846B2 (en) 2011-04-14 2019-10-15 Elwha Llc Cost-effective resource apportionment technologies suitable for facilitating therapies
US9770189B2 (en) 2011-08-16 2017-09-26 Elwha Llc Systematic distillation of status data relating to regimen compliance
US10340034B2 (en) 2011-12-30 2019-07-02 Elwha Llc Evidence-based healthcare information management protocols
US10528913B2 (en) 2011-12-30 2020-01-07 Elwha Llc Evidence-based healthcare information management protocols
US10679309B2 (en) 2011-12-30 2020-06-09 Elwha Llc Evidence-based healthcare information management protocols
US10475142B2 (en) 2011-12-30 2019-11-12 Elwha Llc Evidence-based healthcare information management protocols
US10552581B2 (en) 2011-12-30 2020-02-04 Elwha Llc Evidence-based healthcare information management protocols
US10559380B2 (en) 2011-12-30 2020-02-11 Elwha Llc Evidence-based healthcare information management protocols
US20130173294A1 (en) 2011-12-30 2013-07-04 Elwha LLC, a limited liability company of the State of Delaware Evidence-based healthcare information management protocols
KR102245293B1 (ko) 2012-04-10 2021-04-28 이덱스 바이오메트릭스 아사 생체정보의 감지

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EP0051343B1 (en) 1980-11-03 1986-02-12 North American Philips Corporation Signal processing for digital optical disc players
US4488277A (en) * 1982-02-10 1984-12-11 North American Philips Corporation Control system for an optical data recording apparatus
US4495529A (en) * 1982-05-07 1985-01-22 Digital Equipment Corporation Qualifier circuit
NL8303562A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
JP2807362B2 (ja) * 1991-09-30 1998-10-08 株式会社東芝 情報再生装置
JP3224181B2 (ja) * 1993-11-09 2001-10-29 富士通株式会社 光ディスクからのデータ再生システム
JP2885650B2 (ja) 1993-11-11 1999-04-26 株式会社東芝 ディスク再生装置
US6002538A (en) * 1994-03-18 1999-12-14 Fujitsu, Ltd. PRML regenerating apparatus having adjusted slice levels
US5568465A (en) * 1994-10-06 1996-10-22 International Business Machines Corporation Reading from record medium in either an inverted or non-inverted signal-processing mode
JP2638520B2 (ja) * 1994-11-22 1997-08-06 日本電気株式会社 光情報記録媒体再生装置
KR970002572A (ko) * 1995-06-17 1997-01-28 김광호 데이타 저장기기의 데이타 검출방법 및 장치
JP3367807B2 (ja) * 1995-10-27 2003-01-20 株式会社東芝 光ディスク再生装置
JPH09274770A (ja) * 1996-04-03 1997-10-21 Matsushita Electric Ind Co Ltd 光ディスク再生装置及び再生方法
US5901128A (en) * 1996-05-14 1999-05-04 Pioneer Electronic Corporation Recorded information reproducing apparatus
TW341415U (en) * 1997-04-08 1998-09-21 United Microelectronics Corp A digital data cutting circuit
DE19715275A1 (de) * 1997-04-12 1998-10-15 Thomson Brandt Gmbh Gerät zum Beschreiben oder Lesen optischer Aufzeichnungsträger
DE19748188A1 (de) * 1997-10-31 1999-05-06 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
JP3775914B2 (ja) * 1998-02-02 2006-05-17 三菱電機株式会社 光学的情報再生装置
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JP2001229617A (ja) * 2000-02-16 2001-08-24 Mitsubishi Electric Corp 光ディスク用信号検出回路

Also Published As

Publication number Publication date
US20010017834A1 (en) 2001-08-30
CN1301501C (zh) 2007-02-21
US7369476B2 (en) 2008-05-06
MY142667A (en) 2010-12-15
PL344636A1 (en) 2001-07-02
PL196698B1 (pl) 2008-01-31
KR100682461B1 (ko) 2007-02-15
ID28663A (id) 2001-06-21
DE19961440A1 (de) 2001-06-21
DE60039489D1 (de) 2008-08-28
EP1111597B1 (en) 2008-07-16
ZA200007712B (en) 2002-05-27
CN1301010A (zh) 2001-06-27
KR20010062470A (ko) 2001-07-07
EP1111597A1 (en) 2001-06-27
HK1035252A1 (en) 2001-11-16
JP2001184448A (ja) 2001-07-06

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