KR20010009421A - 광 기록재생기의 비기록 영역 검출 방법 - Google Patents
광 기록재생기의 비기록 영역 검출 방법 Download PDFInfo
- Publication number
- KR20010009421A KR20010009421A KR1019990027777A KR19990027777A KR20010009421A KR 20010009421 A KR20010009421 A KR 20010009421A KR 1019990027777 A KR1019990027777 A KR 1019990027777A KR 19990027777 A KR19990027777 A KR 19990027777A KR 20010009421 A KR20010009421 A KR 20010009421A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- header
- pll
- wobble
- optical
- Prior art date
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
- G11B7/09—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
-
- 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
- G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
-
- 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
- G11B27/22—Means responsive to presence or absence of recorded information signals
-
- 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
- G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- 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
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable 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
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
-
- 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
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/2575—DVD-RAMs
-
- 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
- G11B7/0901—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 track following 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
- G11B7/0945—Methods for initialising servos, start-up sequences
-
- 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0953—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
Abstract
Description
Claims (7)
- 기준 주파수를 인식할 수 있는 정보가 광 기록매체의 트랙 상에 워블링되어 존재하는 기록 가능한 데이터 영역 사이에는 상기 데이터 영역의 형상 구분을 위해 위상이 상이한 복수의 헤더 영역이 배치되어 있는 광 기록재생기의 비기록 영역 검출 방법에 있어서,상기 광 기록매체로부터의 광 반사 신호를 이용하여 리드채널 2 신호를 생성하고 상기 리드 채널 2 신호를 기 설정된 슬라이스 레벨로 슬라이스하여 제 1 헤더 검출 신호와 제 2 헤더 검출 신호를 생성하는 단계;상기 제 1, 제 2 헤더 검출 신호를 각각 일정 길이이상 지연시킨 후 논리곱하는 단계; 그리고상기 워블링된 신호에 위상 동기 루프(PLL)을 걸어 생성되는 PLL-워블 신호를 카운트하여 헤더 영역임을 나타내는 헤더 마스크 신호의 온 시점을 결정하고, 상기 단계에서 논리곱되어 출력되는 신호를 기준 신호로 이용하여 헤더 마스크 신호의 오프 시점을 결정하는 단계를 포함하여 이루어지는 것을 특징으로 하는 광 기록재생기의 비기록 영역 검출 방법.
- 제 1 항에 있어서, 상기 논리곱 단계는상기 지연되는 제 1, 제 2 헤더 검출 신호가 원래의 제 1, 제 2 헤더 검출 신호보다 더 길어지도록 지연 시간을 설정하는 것을 특징으로 하는 광 기록재생기의 비기록 영역 검출 방법.
- 제 1 항에 있어서, 상기 헤더 영역 검출 단계는상기 헤더 마스크 신호가 온되는 구간에서는 PLL-워블 신호를 이전 값으로 홀드시키는 것을 특징으로 하는 광 기록재생기의 비기록 영역 검출 방법.
- 제 1 항에 있어서, 상기 헤더 영역 검출 단계는상기 카운트되는 PLL-워블 신호가 기 설정된 일정 개수가 되면 헤더 마스크 신호를 온시키는 단계와,상기 헤더 마스크 신호가 온된 후 기준 신호가 입력되면 카운트되는 값을 0으로 리셋시키고 다시 카운트를 수행하는 단계와,상기 단계에서 다시 카운트되는 개수가 기 설정된 일정 개수가 되면 상기 헤더 마스크 신호를 오프시키는 단계로 이루어지는 것을 특징으로 하는 광 기록재생기의 비기록 영역 검출 방법.
- 제 4 항에 있어서,상기 단계에서 헤더 마스크 신호가 온된 후 기준 신호가 입력되지 않으면 카운트된 값을 이용하여 카운트되는 값을 0으로 리셋시키고 다시 카운트를 수행하는 것을 특징으로 하는 광 기록재생기의 비기록 영역 검출 방법.
- 제 4 항에 있어서,상기 기 설정되는 기준 개수를 변경시켜 헤더 마스크 신호의 온 시점과 오프 시점을 조절하는 것을 특징으로 하는 광 기록재생기의 비기록 영역 검출 방법.
- 제 1 항에 있어서, 상기 헤더 영역 검출 단계는상기 헤더 마스크 신호로부터 현재 기록재생되는 광 기록매체의 지점이 헤더 영역으로 판별되면 서보 에러 신호를 홀드하여 서보 제어를 수행하는 것을 특징으로 하는 광 기록매체의 비기록 영역 검출 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990027777A KR100595161B1 (ko) | 1999-07-09 | 1999-07-09 | 광 기록재생기의 비기록 영역 검출 방법 |
US09/612,544 US6747932B1 (en) | 1999-07-09 | 2000-07-07 | Apparatus and method for detecting non-recording regions of an optical recording medium |
JP2000207731A JP3507412B2 (ja) | 1999-07-09 | 2000-07-10 | 光記録媒体の非記録領域検出装置及びその方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990027777A KR100595161B1 (ko) | 1999-07-09 | 1999-07-09 | 광 기록재생기의 비기록 영역 검출 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010009421A true KR20010009421A (ko) | 2001-02-05 |
KR100595161B1 KR100595161B1 (ko) | 2006-07-03 |
Family
ID=19600700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990027777A KR100595161B1 (ko) | 1999-07-09 | 1999-07-09 | 광 기록재생기의 비기록 영역 검출 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6747932B1 (ko) |
JP (1) | JP3507412B2 (ko) |
KR (1) | KR100595161B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030021016A (ko) * | 2001-09-05 | 2003-03-12 | 엘지전자 주식회사 | 워블 위상 동기 루프에서의 위상 에러 보정장치 및 방법 |
KR100507563B1 (ko) * | 2001-09-17 | 2005-08-17 | 티아크 가부시키가이샤 | 신호처리회로 및 복조회로 |
KR100656647B1 (ko) * | 2000-01-26 | 2006-12-12 | 엘지전자 주식회사 | 광디스크의 기록가능 영역 판별방법 및 이를 이용한기록재생 제어장치 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100379399B1 (ko) * | 2000-10-02 | 2003-04-10 | 엘지전자 주식회사 | 광 기록매체의 헤더 영역 검출 방법 및 장치와 이를이용한 기록 재생 방법 |
GB0026105D0 (en) * | 2000-10-25 | 2000-12-13 | Lsi Logic Europ Ltd | Head detect configuration within a DVD-Ram read device and methods of acquiring and maintaining phase lock in a wobble phase lock loop |
JP2005332549A (ja) * | 2004-03-09 | 2005-12-02 | Teac Corp | 光ディスク装置 |
US7613093B2 (en) * | 2005-09-28 | 2009-11-03 | Mediatek Inc. | Duty ratio control apparatus for pre-pit detection or header detection of an optical storage medium |
US8023370B2 (en) * | 2005-10-25 | 2011-09-20 | Mediatek Inc. | Apparatus and method for converting groove/land polarity upon groove/land track change on optical medium |
US7903508B2 (en) * | 2006-01-26 | 2011-03-08 | Mediatek Inc. | System and method for determining groove/land switching points of an optical disc utilizing a motor rotating signal and original switching points |
US7961577B2 (en) * | 2006-03-10 | 2011-06-14 | Mediatek Inc. | System and method for generating an output signal indicating a specific area on an optical disc utilizing an adjustable specific time |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980061652A (ko) * | 1996-12-31 | 1998-10-07 | 배순훈 | 디지탈 비디오 디스크 레코더의 미 기록 영역 검출 방법 |
JPH10247325A (ja) | 1997-03-03 | 1998-09-14 | Toshiba Corp | データ記録装置と光ディスク装置のトラッキング方法と光ディスク装置の信号処理方法 |
TW451191B (en) * | 1997-03-19 | 2001-08-21 | Hitachi Ltd | Wobble signal detecting circuit, wobble abnormality detecting circuit, information processing apparatus using these circuit and method, and recording medium used in the apparatus or method |
JPH10320783A (ja) | 1997-03-19 | 1998-12-04 | Hitachi Ltd | ウォブル信号検出回路、ウォブル異常検出回路、これらを用いた情報処理装置及び情報処理方法、並びにこれらに用いる記憶媒体 |
JP3104222B2 (ja) * | 1997-05-19 | 2000-10-30 | ソニー株式会社 | 光ディスク装置 |
JPH11120564A (ja) | 1997-10-08 | 1999-04-30 | Toshiba Corp | 光ディスク装置及び光ディスク再生方法 |
JP4078696B2 (ja) * | 1997-11-28 | 2008-04-23 | 松下電器産業株式会社 | 記録許可判定装置及び情報記録装置 |
JPH11273249A (ja) * | 1998-03-20 | 1999-10-08 | Pioneer Electron Corp | 記録タイミング設定方法及び記録タイミング設定装置並びに情報記録方法及び情報記録装置 |
KR100300985B1 (ko) * | 1998-04-03 | 2001-09-06 | 윤종용 | 헤더 구간 검출장치 |
KR100300998B1 (ko) * | 1998-04-17 | 2001-09-06 | 윤종용 | 랜드/그루브 절환 신호 발생방법 및 장치 |
JP3999881B2 (ja) | 1998-07-14 | 2007-10-31 | 株式会社東芝 | 光ディスク装置とその制御回路 |
JP2000099952A (ja) * | 1998-09-17 | 2000-04-07 | Nec Corp | 光ディスク及び光ディスク装置 |
-
1999
- 1999-07-09 KR KR1019990027777A patent/KR100595161B1/ko not_active IP Right Cessation
-
2000
- 2000-07-07 US US09/612,544 patent/US6747932B1/en not_active Expired - Lifetime
- 2000-07-10 JP JP2000207731A patent/JP3507412B2/ja not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100656647B1 (ko) * | 2000-01-26 | 2006-12-12 | 엘지전자 주식회사 | 광디스크의 기록가능 영역 판별방법 및 이를 이용한기록재생 제어장치 |
KR20030021016A (ko) * | 2001-09-05 | 2003-03-12 | 엘지전자 주식회사 | 워블 위상 동기 루프에서의 위상 에러 보정장치 및 방법 |
KR100507563B1 (ko) * | 2001-09-17 | 2005-08-17 | 티아크 가부시키가이샤 | 신호처리회로 및 복조회로 |
Also Published As
Publication number | Publication date |
---|---|
US6747932B1 (en) | 2004-06-08 |
KR100595161B1 (ko) | 2006-07-03 |
JP2001034946A (ja) | 2001-02-09 |
JP3507412B2 (ja) | 2004-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5724325A (en) | Method for reducing lead in time in an optical disk recording or reproducing apparatus capable of processing data for multiple types of disks | |
KR100595161B1 (ko) | 광 기록재생기의 비기록 영역 검출 방법 | |
KR100943980B1 (ko) | 광기록 장치와 광재생 장치, 및 기록 매체 기록 방법과기록 매체 재생 방법 | |
JPH09204728A (ja) | 光ディスクシステムにおけるディスク自動判別方法及び装置 | |
KR19990016487A (ko) | 트랙판별 방법 및 장치 | |
JP2007149285A (ja) | 光ディスク記録・再生装置及びそのフォーカスサーボ制御方法 | |
TW512313B (en) | Disc drive apparatus | |
US7012861B1 (en) | Track jump method for a recording medium | |
KR100617208B1 (ko) | 광 기록재생기 및 트랙 점프 제어 방법 | |
KR100651996B1 (ko) | 광 기록 재생기 및 트랙 점프 방법 | |
JP2605421B2 (ja) | 光ディスク記録装置 | |
KR100628174B1 (ko) | 광 기록/재생 장치 및 트랙 점프 방법 | |
KR100617169B1 (ko) | 광 기록매체의 비기록 영역 검출 장치 | |
KR100587266B1 (ko) | 광 기록매체의 기록재생 방법 | |
KR100640916B1 (ko) | 광 기록재생기의 액츄에이터 방향 검출 방법 | |
JP4003345B2 (ja) | ディスクドライブ装置 | |
KR20010057845A (ko) | 광 기록 매체의 기록재생방법 | |
KR100698105B1 (ko) | 광 기록매체의 랜드/그루브 트랙 판별 방법 및 장치 | |
US7315492B2 (en) | Header mask signal generating track jump method for a recording medium | |
KR100617209B1 (ko) | 광 기록재생기 및 트랙 점프 방법 | |
KR20010057844A (ko) | 광 기록 매체의 기록재생방법 | |
JPH07334918A (ja) | 記録領域検出回路 | |
KR20010025992A (ko) | 광 기록재생기의 액츄에이터 방향 검출 방법 | |
KR20010057846A (ko) | 광 기록재생기의 트랙킹 제어 방법 | |
JPH0536095A (ja) | デイスク装置のカウント回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
N231 | Notification of change of applicant | ||
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130531 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20140529 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20160330 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20170330 Year of fee payment: 12 |
|
FPAY | Annual fee payment |
Payment date: 20180329 Year of fee payment: 13 |
|
FPAY | Annual fee payment |
Payment date: 20190327 Year of fee payment: 14 |
|
EXPY | Expiration of term |