DE3173778D1 - Signal processing for digital optical disc players - Google Patents

Signal processing for digital optical disc players

Info

Publication number
DE3173778D1
DE3173778D1 DE8181201240T DE3173778T DE3173778D1 DE 3173778 D1 DE3173778 D1 DE 3173778D1 DE 8181201240 T DE8181201240 T DE 8181201240T DE 3173778 T DE3173778 T DE 3173778T DE 3173778 D1 DE3173778 D1 DE 3173778D1
Authority
DE
Germany
Prior art keywords
signal processing
optical disc
digital optical
disc players
players
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
Application number
DE8181201240T
Other languages
English (en)
Inventor
Albert Yiu-Cheung Chan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips North America LLC
US Philips Corp
Original Assignee
US Philips Corp
North American Philips Corp
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 US Philips Corp, North American Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of DE3173778D1 publication Critical patent/DE3173778D1/de
Expired legal-status Critical Current

Links

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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10203—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter baseline correction
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Manipulation Of Pulses (AREA)
DE8181201240T 1980-11-03 1981-11-02 Signal processing for digital optical disc players Expired DE3173778D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20310080A 1980-11-03 1980-11-03

Publications (1)

Publication Number Publication Date
DE3173778D1 true DE3173778D1 (en) 1986-03-27

Family

ID=22752510

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181201240T Expired DE3173778D1 (en) 1980-11-03 1981-11-02 Signal processing for digital optical disc players

Country Status (3)

Country Link
EP (1) EP0051343B1 (de)
JP (1) JPS57105830A (de)
DE (1) DE3173778D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59257A (ja) * 1982-06-25 1984-01-05 Pioneer Electronic Corp デイジタル変調信号読取装置
JPS59118112U (ja) * 1983-01-28 1984-08-09 アルパイン株式会社 磁気記録再生装置
FR2548814B1 (fr) * 1983-07-04 1986-05-02 Thomson Csf Procede et dispositif de remise en forme d'un signal de lecture de donnees enregistrees sur disque optique
JPS60187934A (ja) * 1984-03-07 1985-09-25 Toshiba Corp 光学的記録媒体の再生方式
GB8422754D0 (en) * 1984-09-08 1984-10-10 Lucas Ind Plc Transducer means
NL8702904A (nl) * 1987-12-03 1989-07-03 Philips Nv Werkwijze en inrichting voor het optekenen van informatie op een registratiedrager, alsmede een inrichting voor het lezen van de opgetekende informatie.
US5790495A (en) 1994-05-06 1998-08-04 Discovision Associates Data generator assembly for retrieving stored data by comparing threshold signal with preprocessed signal having DC component
AU741101B2 (en) * 1994-05-06 2001-11-22 Discovision Associates A method for retrieving data stored on a medium
US5894468A (en) * 1994-05-06 1999-04-13 Discovision Associates Data recovery with differentiation and partial integration stages to eliminate noises and DC offset level
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
WO1999063530A1 (en) 1998-06-02 1999-12-09 Seagate Technology, Inc. A magneto-optical recording system employing linear recording and playback channels
WO1999063539A1 (en) * 1998-06-02 1999-12-09 Seagate Technology, Inc. Efficient linearization of saturation channels
US6687205B1 (en) 1998-06-09 2004-02-03 Seagate Technology Llc Parallel coded spread spectrum communication for data storage
US6798725B1 (en) * 1998-10-27 2004-09-28 Matsushita Electric Industrial Co., Ltd. Wave-shaping apparatus and reproduction signal processing apparatus including the same
US6542443B1 (en) 1999-06-02 2003-04-01 Seagate Technology Llc Efficient linearization of saturation channels
JP2001155430A (ja) * 1999-10-26 2001-06-08 Matsushita Electric Ind Co Ltd 再生信号処理装置
DE19961440A1 (de) 1999-12-20 2001-06-21 Thomson Brandt Gmbh Gerät zum Lesen und/oder Schreiben optischer Aufzeichnungsträger
WO2003034592A1 (en) * 2001-10-17 2003-04-24 Optillion Ab Adaptive level binary logic
ATE269735T1 (de) 2001-10-18 2004-07-15 Pari Gmbh Inhalationstherapievorrichtung
US7250806B2 (en) 2005-03-02 2007-07-31 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Apparatus and method for generating an output signal that tracks the temperature coefficient of a light source

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588714A (en) * 1969-06-30 1971-06-28 Gen Motors Corp System for reconstructing a digital signal
DE2163247C3 (de) * 1971-12-20 1978-03-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vorrichtung zur Beseitigung der in einem Eingangssignal enthaltenen Störsignale
DE2208310C3 (de) * 1972-02-22 1982-07-29 Nixdorf Computer Ag, 4790 Paderborn Verfahren und Schaltungsanordnung zur Erzeugung einer Impulsfolge konstanter Impulsamplitude aus einer bivalenten Signalfolge veränderlicher Signalamplitude, der eine zeitlich veränderliche Gleichgröße überlagert ist

Also Published As

Publication number Publication date
EP0051343A2 (de) 1982-05-12
EP0051343B1 (de) 1986-02-12
EP0051343A3 (en) 1982-10-13
JPS57105830A (en) 1982-07-01

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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