TW583650B - Optical recording medium - Google Patents
Optical recording medium Download PDFInfo
- Publication number
- TW583650B TW583650B TW090125508A TW90125508A TW583650B TW 583650 B TW583650 B TW 583650B TW 090125508 A TW090125508 A TW 090125508A TW 90125508 A TW90125508 A TW 90125508A TW 583650 B TW583650 B TW 583650B
- Authority
- TW
- Taiwan
- Prior art keywords
- lead
- recording medium
- optical recording
- user data
- area
- Prior art date
Links
Classifications
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- 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
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- 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
- G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
- G11B20/1024—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation wherein a phase-locked loop [PLL] is used
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- 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
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- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
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- 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
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- 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
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- 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
- G11B7/00718—Groove and land recording, i.e. user data recorded both in the grooves and on the lands
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- 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
- G11B7/0079—Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
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- 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
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- 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
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- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
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- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24073—Tracks
- G11B7/24082—Meandering
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- 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
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- 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
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1238—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc track, i.e. the entire a spirally or concentrically arranged path on which the recording marks are located
- G11B2020/1239—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc track, i.e. the entire a spirally or concentrically arranged path on which the recording marks are located the track being a pregroove, e.g. the wobbled track of a recordable optical disc
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- 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
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1287—Synchronisation pattern, e.g. VCO fields
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- 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
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- 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
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
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- 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
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- 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
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- 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
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- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
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- 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
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
08335pifl.doc/012 修正日期:92年11月27日 爲第90125508號說明書無劃線修正本 玖、發明說明: 本發明是有關於一種光學記錄媒體,且特別是有關 於一種光學記錄媒體,其具有形成於使用者資料區與導出 (lead-out)區之溝槽之至少一個側表面上之擺動訊號 (wobble),且架構成使用者資料區與導出區間之擺動訊號 特徵不同。 一般’光學記錄媒體係廣泛用於非接觸型之光學讀 取裝置之記錄/再生資訊中之資訊記錄媒體,且根據資訊 記錄容量而分類成一般光碟(CD)與數位多功能光碟 (DVD)。甚至,能寫入、抹除與讀取資訊之DVD光碟片 係可再分類成數位多功能光碟-隨機存取記憶體(DVD-RAM) 與可重覆寫入數位多功能光碟片(DVD-RW)。 在此種DVD-RAM或DVD-RW光碟片中,如第1圖 所示,其包括:導入區1〇,其上記錄有唯讀資料,比如碟 片尺寸、在可讀平面上之軌道層數量或防止非法複製資 訊;使用者資料區20,其中使用者資料可重覆讀取及/或 寫入;以及導出區30,其中係記錄其他的碟片相關資訊。 如第1圖之”c”部份所示,其有溝槽(groove)23與平 面(land)25父替形成於使用者資料區2〇內,以沿著既定軌 道來進行記錄及/或再生資訊標記27。在第丨圖中,參考 付藏40代表再生光束。從導入區i〇(“a”)與導出區3〇(“b,,) 之放大部份,可確認其上形成有唯讀資料之實體凹處 (pit)15。在此,導出區3〇執行各種功能。比如,導出區3〇 使得讀取頭在進行記錄/再生時不會離開使用者資料區。 08335pifl.doc/012 修正日期:92年11月27曰 爲第90125508號說明書無劃線修正本 特別是,如第2圖所示,在具有相反軌道路徑之第一記錄 層L0與第二記錄層L1之雙層光學記錄媒體中,導出區30 允許讀取頭來持續進行循軌於從第一層L0之最外圈跳層 至第二層L1之最外圏而不能脫離軌道。相對軌道係依序 從第一記錄層L0之最內圏定位至其最外圈,接著從從第 二記錄層L1之最內圈定位至其最外圈。 在雙層之唯讀型(ROM)碟片中,當成導出區之區域係 根據第二層之再生法而改變。在具相對軌道路徑之雙層 ROM碟片中,中間區係分別提供於第一與第二記錄層之 最外圏。在可覆寫光學記錄媒體係單層碟片之情況中,可 使用凹槽(pit)與溝槽(groove)。然而,在雙層記錄媒體中, 在記錄資料時,記錄功率係被第一記錄層L0之實際形狀 所影響。也就是,當記錄於第二記錄層L1上時,記錄光 束通過第一記錄層L0,導致在凹槽圖樣與溝槽圖樣之穿 透率之差異。 光功率係測量於鏡射區,溝槽區,凹槽區與具標記 之溝槽區,以模擬相關於穿透率差異之光功率,根據第一 記錄層L0之各種條件,如第3A〜3D圖所示。在此,被雷 射光束透過透鏡所對準之軌道數量係考量進去。 實驗之輸入參數與項目係列於表1中。在表1中,Rc 代表記錄層之結晶部份之反射率而Ra代表記錄層之非結 晶部份之反射率。 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 修正日期:92年11月27日 表1 參數 條件 波長(nm) 400 數値孔徑(ΝΑ) 0.65/0.85 最小標記長度(//m) 0.275/0.194 調變 EFM+(EFM+) 軌道間距(//m) 0.30, 0.34, 0.38 反射率(%) Rc=25 , Ra=5 表2 項目 因素 舉例 雙記錄層 第一記錄層之架構 溝槽,凹槽… 高NA 雷射光束所對準之 軌道數量 對 0.65NA 是 85 對 0.85NA 是 160 雷射光束之入射角 度 對 0.65NA 是 40.5〇 對 0.85NA 是 58.2° 第4圖係顯示有關第3A〜3D圖之情況之穿透率之光 功率測量結果。根據模擬結果’在鏡射部份之光功率減少 係最小,光功率依次減少於平面部份’溝槽部份與溝槽標 記部份。在雙層碟片之情況中,穿透率係根據第一記錄層 L 0之貫際f曰狀而改變其影響在資料錄時之記錄功率。 因此,必需統一雙層碟片之第一記錄層L0之實際情況以 及重新定義導出區或中間區。 爲解決上述問題,本發明之目的係提供一種具有一 使用者資料區與一導出區之光學記錄媒體,其能避免讀取 修正日期:92年11月27曰 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 頭在資料記錄及/或再生時偏離於使用者資料區。 因此爲達上述目的,本發明提供一種具有一使用者 資料區與一導出區之光學記錄媒體,其中該使用者資料區 與該導出區各具有溝槽與平面形成於其上,擺動訊號係形 成於各溝槽之至少一個側表面上,且該導出區之該擺動訊 號所具有之特徵係不同於該使用者資料區之該擺動訊號之 特徵。 較好是,該導出區之擺動訊號係由將該使用者資料 區之該擺動訊號之頻率、周期、振幅與相位之至少一個特 徵調變而成。 同樣地,該導出區之該擺動訊號包括定址資訊或以 鎖相迴路(PLL)形式出現之參考時間資訊。 從該使用者資料區與從該導出區之該溝槽所讀出之 信號同步圖樣係不同。 既定記錄圖樣係記錄於該光學記錄媒體之最外圏上 以避免讀取頭在資料記錄及/或再生時偏離於該使用者資 料區。 同樣,兩個或多個記錄層係做爲多層記錄。 此兩個或多個記錄層具有不同記錄圖樣於其導出區 內。 該導出區之寬度係碟片偏心量之最大允許量之兩倍 或更多倍。 在本發明之另一觀點中,係提供一種具有一使用者 資料區與一導出區之光學記錄媒體,其中既定記錄圖樣係 修正日期:92年11月27日 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 記錄於該光學記錄媒體之最外圈上以避免讀取頭在資料記 錄及7或再生時偏離於該使用者資料區。 另外,本發明提供一種具有一使用者資料區與一導 出區之光學記錄媒體,其中該使用者資料區與該導出區各 具有溝槽與平面形成於其上,且不同類型之同步圖樣係使 用於該導出區與該使用者資料區內。 爲讓本發明之上述目的、特徵、和優點能更明顯易 懂,下文特舉較佳實施例,並配合所附圖式,作詳細說明 如下: 圖式之簡單說明: 第1圖繪示傳統光學記錄媒體之部份A、B與C之放 大圖; 第2圖繪示傳統光學記錄媒體之部份剖面圖; 第3A〜3D圖顯示傳統光學記錄媒體之各部份; 第4圖顯示各種例之光功率之實驗結果;以及 第5圖係根據本發明之光學記錄媒體之部份A、B與 C之放大圖。 標號說明= 10 :導入區 15 :凹處 20 :使用者資料區 23 :溝槽 25 :平面 27 :資訊標記 583650 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 修正日期:92年11月27日 30 :導出區 40 :再生光束 100 :導入區 105、135 :擺動訊號 110 :雷射光 120 :使用者資料區 123 :溝槽 125 :平面 130 :導出區 較佳實施例 請參照第5圖,依照本發明之光學記錄媒體包括導 入區100,使用者資料區120與導出區130,各區具有溝 槽123與平面125形成於其上。擺動訊號105與擺動訊號 135係形成於各溝槽123與平面125之至少一個側表面上。 在此,使用者資料區120之部份”E”與導出區130之部份”D” 係放大且示於第5圖。參考符號110代表雷射光。 如上述,導出區130係防止光讀取頭(未示出)在記錄 及/或再生資料時從使用者資料區120偏離,且可持續循 軌於從雙層碟片之最外圈進行層內跳軌之輔助。 在根據本發明之第一實施例之光學記錄媒體中,爲 執行輔助功能,不同於使用者資料區120內之擺動訊號係 形成於光學記錄媒體之既定直徑上之區域內。也就是,包 括擺動訊號105與擺動訊號135之周期、頻率、振幅與相 位之至少一種特徵係調變於使用者資料區120與導出區 12 583650 O8335pifl.doc/O12 修正日期:92年11月27日 爲第90125508號說明書無劃線修正本 130內。在調變擺動訊號1〇5與135之頻率之例中,導出 區130之擺動訊號135係可形成爲具有使用者資料區120 之擺動訊號105之基頻之n倍(n是自然數)。比如,爲當 成輔助,導出區130係架構成使得擺動訊號135具有使用 者資料區120之2倍頻率。 在調變擺動訊號周期Τ之例中,比如,使用者資料 區120之擺動訊號105與導出區130之擺動訊號135分別 具有200Τ與100Τ,使得導出區130可被分別。在完成碟 片製造後,待寫入之圖樣資料,如〇〇h可記錄於導出區130 中。因此,〇〇h圖樣資料係在記錄/再生時由通道l(chl)所 讀出,且擺動訊號頻率或周期係由通道2(ch2)所讀出,因 而允許導出區130之雙重分別。 在根據本發明之第二實施例之光學記錄媒體中,當 將光學媒體格式化時,既定之記錄圖樣係記錄於導出區130 內,因而分別出導出區130。 既定記錄圖樣可爲,比如,使用於使用者資料區120 內之記錄圖樣。也就是,在使用者資料區120所用之記錄 圖樣內,既定記錄圖樣,比如,00h圖樣係重覆記錄於導 出區130內,因而分別出導出區130。 另外,未使用於使用者資料區120內之記錄圖樣係 記錄於導出區130內,因而分別導出區130。比如,00h 圖樣係記錄於使用者資料區120內,且FFh圖樣等待寫入 之另一種圖樣係記錄於導出區130內。在此,00h與FFh 圖樣係根據10進位系統之記錄圖樣。 13 583650 修正日期:92年11月27曰 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 根據本發明之第三實施例,光學媒體包括使用者資 料區120與導出區130,各具有溝槽123與平面I25。不 同類型之同步圖樣係使用於使用者資料區120與導出區 13〇內。因此,導出區130係由分別同步圖樣而分辨,因 而避免讀取頭在記錄/再生時從使用者資料區120偏離。 在此,導出區130之寬度係可大等於碟片偏心量之 最大允許量之兩倍或更多,較好是100 #m。 另外,本發明提供具兩或多層記錄層之多層光學記 錄媒體。多層光學記錄媒體包括使用者資料區120與導出 區130,各具有溝槽123與平面125。擺動訊號1〇5與135 係形成於各平面125與溝槽123之至少一個側表面上。擺 動訊號105與135包括定位資訊或參考時間資訊’比如 pLL。爲避免讀取頭偏離於使用者資料區120’分別形成 於使用者資料區120與導出區130內之擺動訊號1〇5與135 可調變成兩種不同類型之擺動訊號。在具兩或多個記錄層 之多層光學記錄媒體中,不同記錄圖樣係形成於各記錄層 之各導出區上,因而分別出各記錄層。比如,在雙層記錄 媒體中,〇〇h圖樣係記錄於第一記錄層之導出區上,而FFh 圖樣係記錄於第二記錄層之導出區上。藉此,在對光學記 錄媒體進行資訊記錄或再生時,記錄圖樣係由通道Uchl) 所讀出,而根據擺動訊號調變之擺動訊號信號係由通道 2(ch2)所讀出。因此,讀取頭可避免偏離於使用者資料區 U0,而各記錄層可被分別。 爲在跳層時保持循軌,導出區130之寬度係可大等 14 583650 08335pifl.doc/012 修正日期:92年11月27日 爲第90125508號說明書無劃線修正本 於碟片偏心量之最大允許量之兩倍或更多。如果根據碟片 製程射出之碟片偏心量係約50// m,導出區130之寬度係 可爲100// m或更大。 根據本發明之另一實施例,爲在具兩個或多記錄層 之雙層光學記錄媒體內分別出各記錄層,不同的同步圖樣 可用於導出區130之各記錄層內,因而在相同於第一記錄 層之條件下可維持穿透率於相同等級。 在根據本發明之光學記錄媒體中,記錄可進行於溝 槽123或溝槽123與平面125之上。 如上所述,根據本發明,溝槽係形成於使用者資料 區與導出區,且不同類型擺動訊號係形成於使用者資料區 或導出區之一之溝槽上,因而避免讀取頭在資訊再生時從 使用者資料區偏離。同樣,在多層光學記錄媒體中,第一 記錄層之整個區域係架構成具相同條件,因而避免因爲第 一記錄層之穿透率差異之再生及/或記錄惡化。 綜上所述,雖然本發明已以數個較佳實施例揭露如 上,然其並非用以限定本發明,任何熟習此技藝者,在不 脫離本發明之精神和範圍內,當可作各種之更動與潤飾, 因此本發明之保護範圍當視後附之申請專利範圍所界定者 爲準。 15
Claims (1)
- 583650 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 修正日期:92年11月27日 拾、申請專利範圍: 1· 一種具有一使用者資料區與一導出區之光學記錄媒 體,其中該使用者資料區與該導出區各具有溝槽與平面形 成於其上,擺動訊號係形成於各溝槽之至少一個側表面 上,且該導出區之該擺動訊號所具有之特徵係不同於該使 用者資料區之該擺動訊號之特徵。 2·如申請專利範圍第1項所述之光學記錄媒體,其中該 導出區之擺動訊號係由將該使用者資料區之該擺動訊號之 頻率、周期、振幅與相位之至少一個特徵調變而成。 3·如申請專利範圍第1或2項所述之光學記錄媒體,其 中該導出區之該擺動訊號包括定址資訊或以鎖相迴路 形式出現之參考時間資訊。 4.如申請專利範圍第1或2項所述之光學記錄媒體,其 中從該使用者資料區與從該導出區之該溝槽所讀出之;信_ 同步圖樣係不同。 5·如申請專利範圍第1或2項所述之光學記錄媒體,_ 中既定記錄圖樣係記錄於該光學記錄媒體之最外_上& _ 免讀取頭在資料記錄及/或再生時偏離於該使用者育半斗 區。 6. 如申請專利範圍第1或2項所述之光學記錄媒體,其 中兩個或多個記錄層係做爲多層記錄。 7. 如申請專利範圍第6項所述之光學記錄媒體,其$ §彡 兩個或多個記錄層具有不同記錄圖樣於其導出區內。 8. 如申請專利範圍第7項所述之光學記錄媒體,其ψ言亥 16 583650 08335pifl.doc/012 爲第90125508號說明書無劃線修正本 修正日期:92年11月27日 導出區之寬度係碟片偏心量之最大允許量之兩倍或更多 倍。 9. 如申請專利範圍第1或2項所述之光學記錄媒體,其 中記錄係進行於溝槽及/或平面上。 10. —種具有一使用者資料區與一導出區之光學記錄媒 體,其中既定記錄圖樣係記錄於該光學記錄媒體之最外圈 上以避免讀取頭在資料記錄及/或再生時偏離於該使用者 資料區。 11. 如申請專利範圍第10項所述之光學記錄媒體,其中 該既定記錄圖樣係藉由重覆記錄該使用者資料區內所用之 該記錄圖樣而形成。 12. 如申請專利範圍第10項所述之光學記錄媒體,其中 該記錄圖樣係不同於該使用者資料區所用之記錄圖樣。 13. 如申請專利範圍第10〜12項之任一項所述之光學記 錄媒體,其中兩個或多個記錄層係做爲多層記錄。 14. 如申請專利範圍第13項所述之光學記錄媒體,其中 該兩個或多個記錄層各具有不同記錄圖樣。 15. 如申請專利範圍第14項所述之光學記錄媒體,其中 該導出區之寬度係碟片偏心量之最大允許量之兩倍或更多 倍。 16. 如申請專利範圍第14項所述之光學記錄媒體,其中 從該使用者資料區與從該導出區之該溝槽所讀出之信號同 步圖樣係不同。 17. 如申請專利範圍第14項所述之光學記錄媒體,其中 17 583650 O8335pifl.doc/O12 爲第90125508號說明書無劃線修正本 修正日期:92年11月27日 該兩個或多個記錄層之各導出區係具有不同的同步圖樣。 18. 如申請專利範圍第10〜12項之任一項所述之光學記 錄媒體,其中記錄係進行於該溝槽及/或平面上。 19. 一種具有一使用者資料區與一導出區之光學記錄媒 體,其中該使用者資料區與該導出區各具有溝槽與平面形 成於其上,且不同類型之同步圖樣係使用於該導出區與該 使用者資料區內。 20. 如申請專利範圍第15項所述之光學記錄媒體,其中 從該使用者資料區與從該導出區之該溝槽所讀出之信號同 步圖樣係不同。 21. 如申請專利範圍第15項所述之光學記錄媒體,其中 該兩個或多個記錄層之各導出區係具有不同的同步圖樣。18
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