TW494402B - Focus control device, recording medium, and compact disc player - Google Patents

Focus control device, recording medium, and compact disc player Download PDF

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Publication number
TW494402B
TW494402B TW090104856A TW90104856A TW494402B TW 494402 B TW494402 B TW 494402B TW 090104856 A TW090104856 A TW 090104856A TW 90104856 A TW90104856 A TW 90104856A TW 494402 B TW494402 B TW 494402B
Authority
TW
Taiwan
Prior art keywords
signal
compact disc
focus
focus error
error signal
Prior art date
Application number
TW090104856A
Other languages
English (en)
Inventor
Toshikazu Kobayashi
Original Assignee
Sony Computer Entertainment Inc
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 Sony Computer Entertainment Inc filed Critical Sony Computer Entertainment Inc
Application granted granted Critical
Publication of TW494402B publication Critical patent/TW494402B/zh

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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Holo Graphy (AREA)

Description

494402 A8 B8 C8 D8 經濟部智慧財產局員工消費合作社印製 六、申請專利範圍 ，則上述尖峰檢出裝置於檢測到聚焦錯誤信號之尖峰後才 連接聚焦伺服。 6 ·如申請專利範圍第1至5項之任一項之聚焦控制 裝置，其中用於計算上述聚焦錯誤信號之基準値之基準値 計算裝置係用於在光碟再生前計算基準値者，而 上述聚焦錯誤信號之基準値係從上述物鏡之焦點對準 光碟之最下面記錄層之狀態到對準最上面記錄層之狀態爲 止之聚焦錯誤信號之每兩極最高之錯誤値爲基準算出。 7 . —種程式，其可在具有下列娛樂裝置上執行，該 裝置具備： 物鏡，用於對由多個信號記錄層所構成之光碟聚焦光 線， . 1 聚焦驅動裝置，用於使該物鏡移動至與光碟之記錄層 之正交方向， 光檢出裝置，用於檢測來自上述光碟之反射光，以及 聚焦錯誤信號產生裝置，根據該光檢出裝置之檢出信 號產生與上述光碟層相對之上述物鏡之散焦相對應之聚焦 錯誤信號， 其特徵爲令上述娛樂裝置執行： 尖峰檢出處理，用以檢測聚焦錯.誤信號之尖峰’ 基準値計算處理，依照該尖峰檢出處理之檢出信號計 算聚焦錯誤信號之基準値， 比較信號產生處理，用於比較聚焦錯誤信號與聚焦錯 誤信號之基準値，並根據其結果產生比較信號，以及 .I 裝 I 訂 — 11 !m (請先閎婧背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公A ) -3- 494402 A8 B8 C8 D8 ^、申請專利範圍 接受令上述物鏡之焦點位置移動之請求，並根據上述 尖峰檢出裝置之檢出信號與比較信號以產生及輸出用於控 制上述聚焦驅動裝置之信號之處理。 8 . —種記錄媒體，其記錄著申請專利解圍第7項所 述之程式並可由娛樂裝置所讀取。 9 . 一種光碟再生裝置，其具備申請專利範圍第1至 第6項之任一項所述之聚焦控制裝置。 (請先閎讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -4
TW090104856A 2000-03-03 2001-03-02 Focus control device, recording medium, and compact disc player TW494402B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000059345 2000-03-03
JP2001053801A JP2001319344A (ja) 2000-03-03 2001-02-28 フォーカス制御装置、記録媒体および光ディスク再生装置

Publications (1)

Publication Number Publication Date
TW494402B true TW494402B (en) 2002-07-11

Family

ID=26586765

Family Applications (1)

Application Number Title Priority Date Filing Date
TW090104856A TW494402B (en) 2000-03-03 2001-03-02 Focus control device, recording medium, and compact disc player

Country Status (13)

Country Link
US (1) US6744709B2 (zh)
EP (1) EP1202258B1 (zh)
JP (1) JP2001319344A (zh)
KR (1) KR100750797B1 (zh)
CN (1) CN1165041C (zh)
AT (1) ATE365961T1 (zh)
AU (1) AU3608301A (zh)
BR (1) BR0104782A (zh)
CA (1) CA2370719A1 (zh)
DE (1) DE60129089T2 (zh)
NZ (1) NZ515835A (zh)
TW (1) TW494402B (zh)
WO (1) WO2001065551A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI635662B (zh) * 2015-07-02 2018-09-11 英屬開曼群島商鴻騰精密科技股份有限公司 電連接器及其製造方法

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4089177B2 (ja) * 2000-10-25 2008-05-28 株式会社日立製作所 光ディスク装置及び層間ジャンプ方法
CN1191572C (zh) * 2001-06-13 2005-03-02 建兴电子科技股份有限公司 光驱的峰值检测聚焦跳层方法
EP1437716B1 (en) * 2001-10-19 2010-07-14 Sony Computer Entertainment Inc. Storage medium type identifying method
TW541518B (en) * 2001-12-13 2003-07-11 Acer Labs Inc Method for controlling jump layer braking of CD drive
KR100425318B1 (ko) * 2001-12-28 2004-03-31 삼성전자주식회사 광 매체의 레이어 절환 제어 방법 및 장치
JP2004039125A (ja) * 2002-07-04 2004-02-05 Sony Corp 光記録再生装置、焦点制御方法
US7206987B2 (en) * 2003-04-30 2007-04-17 Hewlett-Packard Development Company, L.P. Error detection and correction in a layered, 3-dimensional storage architecture
KR100520508B1 (ko) * 2003-09-27 2005-10-11 삼성전자주식회사 포커스 인입 장치 및 방법
KR100524996B1 (ko) * 2003-12-30 2005-10-31 삼성전자주식회사 광 디스크 시스템의 엑츄에이터 코일 손상 방지 장치 및그 방법
CN100447871C (zh) * 2004-03-18 2008-12-31 联发科技股份有限公司 光驱跳轨结束时目标轨的循轨误差信号极性判断装置
JP3992044B2 (ja) * 2004-04-22 2007-10-17 ソニー株式会社 再生装置、フォーカスジャンプ方法
KR100706468B1 (ko) * 2004-12-17 2007-04-10 주식회사 대우일렉트로닉스 홀로그래픽 롬 디스크의 기준광 포커스 서보 장치
JP2006277777A (ja) 2005-03-02 2006-10-12 Sony Corp 再生装置、レイヤジャンプ方法
TWI360118B (en) * 2006-11-14 2012-03-11 Princeton Technology Corp Device for layer jumping control of optical disc d
JP2010250901A (ja) * 2009-04-16 2010-11-04 Hitachi Ltd 光ディスク装置及び多層ディスクに対するフォーカスジャンプ方法
JP2011118959A (ja) * 2009-11-30 2011-06-16 Hitachi-Lg Data Storage Inc 光ディスク装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3413684B2 (ja) * 1994-12-16 2003-06-03 ソニー株式会社 多層光ディスク再生装置および方法
JP3561576B2 (ja) * 1995-09-07 2004-09-02 パイオニア株式会社 多層ディスク再生装置
JP2000200431A (ja) 1996-07-31 2000-07-18 Sanyo Electric Co Ltd フォーカスジャンプ方法
JPH1139665A (ja) 1997-07-15 1999-02-12 Pioneer Electron Corp 多層光記録媒体用フォーカス制御装置
JP3758347B2 (ja) 1997-12-25 2006-03-22 三菱電機株式会社 光ディスク装置におけるフォーカシング装置
JP4092774B2 (ja) 1998-05-07 2008-05-28 三菱電機株式会社 光ディスク装置におけるフォーカシング装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI635662B (zh) * 2015-07-02 2018-09-11 英屬開曼群島商鴻騰精密科技股份有限公司 電連接器及其製造方法

Also Published As

Publication number Publication date
ATE365961T1 (de) 2007-07-15
AU3608301A (en) 2001-09-12
EP1202258A4 (en) 2006-04-19
KR100750797B1 (ko) 2007-08-20
NZ515835A (en) 2003-09-26
CN1366661A (zh) 2002-08-28
WO2001065551A1 (fr) 2001-09-07
DE60129089T2 (de) 2008-02-28
KR20020012188A (ko) 2002-02-15
US20010024408A1 (en) 2001-09-27
EP1202258A1 (en) 2002-05-02
US6744709B2 (en) 2004-06-01
JP2001319344A (ja) 2001-11-16
DE60129089D1 (de) 2007-08-09
BR0104782A (pt) 2002-05-14
EP1202258B1 (en) 2007-06-27
CA2370719A1 (en) 2001-09-07
CN1165041C (zh) 2004-09-01

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