FR2779263B1 - Procede et dispositif de correction automatique du seuil de detection des donnees enregistrees sur un disque optique numerique - Google Patents

Procede et dispositif de correction automatique du seuil de detection des donnees enregistrees sur un disque optique numerique

Info

Publication number
FR2779263B1
FR2779263B1 FR9806896A FR9806896A FR2779263B1 FR 2779263 B1 FR2779263 B1 FR 2779263B1 FR 9806896 A FR9806896 A FR 9806896A FR 9806896 A FR9806896 A FR 9806896A FR 2779263 B1 FR2779263 B1 FR 2779263B1
Authority
FR
France
Prior art keywords
threshold
detection
optical disc
data recorded
automatic correction
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
Application number
FR9806896A
Other languages
English (en)
Other versions
FR2779263A1 (fr
Inventor
Daniel Bec
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.)
Art Tech Gigadisc ATG
Original Assignee
Art Tech Gigadisc ATG
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 Art Tech Gigadisc ATG filed Critical Art Tech Gigadisc ATG
Priority to FR9806896A priority Critical patent/FR2779263B1/fr
Publication of FR2779263A1 publication Critical patent/FR2779263A1/fr
Application granted granted Critical
Publication of FR2779263B1 publication Critical patent/FR2779263B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; 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
    • G11B27/30Indexing; 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
    • G11B27/3027Indexing; 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1258Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1281Servo information
    • G11B2020/1282Servo information in embedded servo fields
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005Reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
FR9806896A 1998-06-02 1998-06-02 Procede et dispositif de correction automatique du seuil de detection des donnees enregistrees sur un disque optique numerique Expired - Lifetime FR2779263B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9806896A FR2779263B1 (fr) 1998-06-02 1998-06-02 Procede et dispositif de correction automatique du seuil de detection des donnees enregistrees sur un disque optique numerique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9806896A FR2779263B1 (fr) 1998-06-02 1998-06-02 Procede et dispositif de correction automatique du seuil de detection des donnees enregistrees sur un disque optique numerique

Publications (2)

Publication Number Publication Date
FR2779263A1 FR2779263A1 (fr) 1999-12-03
FR2779263B1 true FR2779263B1 (fr) 2000-08-25

Family

ID=9526927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9806896A Expired - Lifetime FR2779263B1 (fr) 1998-06-02 1998-06-02 Procede et dispositif de correction automatique du seuil de detection des donnees enregistrees sur un disque optique numerique

Country Status (1)

Country Link
FR (1) FR2779263B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204848A (en) * 1991-06-17 1993-04-20 International Business Machines Corporation Adjusting amplitude detection threshold by feeding back timing-data phase errors
JP2807362B2 (ja) * 1991-09-30 1998-10-08 株式会社東芝 情報再生装置
JP3015832B2 (ja) * 1995-06-27 2000-03-06 富士通株式会社 データ再生装置

Also Published As

Publication number Publication date
FR2779263A1 (fr) 1999-12-03

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