TW374903B - Disc drive - Google Patents
Disc driveInfo
- Publication number
- TW374903B TW374903B TW087103488A TW87103488A TW374903B TW 374903 B TW374903 B TW 374903B TW 087103488 A TW087103488 A TW 087103488A TW 87103488 A TW87103488 A TW 87103488A TW 374903 B TW374903 B TW 374903B
- Authority
- TW
- Taiwan
- Prior art keywords
- range
- data
- test
- error rate
- magnetic bulb
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1879—Direct read-after-write methods
-
- 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
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
- G11B20/1889—Methods for assignment of alternate areas for defective areas with discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- 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
- G11B7/0045—Recording
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05951597A JP3900577B2 (ja) | 1997-03-13 | 1997-03-13 | ディスク装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW374903B true TW374903B (en) | 1999-11-21 |
Family
ID=13115485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW087103488A TW374903B (en) | 1997-03-13 | 1998-03-10 | Disc drive |
Country Status (3)
Country | Link |
---|---|
US (1) | US5982718A (zh) |
JP (1) | JP3900577B2 (zh) |
TW (1) | TW374903B (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2863052B2 (ja) * | 1993-03-15 | 1999-03-03 | 松下電器産業株式会社 | デジタルデータ符号化方法、復号化方法、符号化装置および復号化装置 |
USRE39832E1 (en) | 1993-03-15 | 2007-09-11 | Matsushita Electric Industrial Co., Ltd. | Optical recording disk capable of resynchronization in digital encoding and decoding |
JP3519309B2 (ja) * | 1999-04-28 | 2004-04-12 | シャープ株式会社 | 光ディスク、光再生装置及び光記録装置 |
US6618337B2 (en) * | 2000-01-28 | 2003-09-09 | Matsushita Electric Industrial Co., Ltd. | Information recording and reproduction apparatus |
US6631108B1 (en) * | 2000-04-03 | 2003-10-07 | Hewlett-Packard Development Company, L.P. | Method for accurate positioning of data marks and spaces on an optical disc |
US20030079161A1 (en) * | 2001-10-22 | 2003-04-24 | Verboom Johannes J. | Optimized data storage system and method for optical storage system |
US7064913B2 (en) * | 2002-01-09 | 2006-06-20 | Quantum Corporation | Enhanced read margining using dither enhanced write marginalization for mass data storage applications |
JP2003257133A (ja) * | 2002-02-28 | 2003-09-12 | Canon Inc | 情報再生装置 |
US7372651B2 (en) | 2003-03-07 | 2008-05-13 | Quantum Corporation | Introducing a noise signal into a read-back signal when data is written to a removable data storage medium |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5502699A (en) * | 1993-05-14 | 1996-03-26 | Sony Corporation | Disc reproduction apparatus |
US5602814A (en) * | 1994-10-06 | 1997-02-11 | International Business Machines Corporation | Calibration of write-once disks using a single disk sector |
JP3503231B2 (ja) * | 1994-11-30 | 2004-03-02 | ソニー株式会社 | 記録装置 |
JPH0963221A (ja) * | 1995-08-18 | 1997-03-07 | Sony Corp | デイスク検査装置 |
US5864531A (en) * | 1996-09-24 | 1999-01-26 | Sony Corporation | DC level fluctuation correction by selecting a time constant coupled to a reproduced signal |
-
1997
- 1997-03-13 JP JP05951597A patent/JP3900577B2/ja not_active Expired - Fee Related
-
1998
- 1998-03-10 TW TW087103488A patent/TW374903B/zh not_active IP Right Cessation
- 1998-03-10 US US09/037,487 patent/US5982718A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH10255265A (ja) | 1998-09-25 |
JP3900577B2 (ja) | 2007-04-04 |
US5982718A (en) | 1999-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |