TW200842846A - Optical disc deterioration detection method - Google Patents

Optical disc deterioration detection method Download PDF

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Publication number
TW200842846A
TW200842846A TW96140830A TW96140830A TW200842846A TW 200842846 A TW200842846 A TW 200842846A TW 96140830 A TW96140830 A TW 96140830A TW 96140830 A TW96140830 A TW 96140830A TW 200842846 A TW200842846 A TW 200842846A
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TW
Taiwan
Prior art keywords
record carrier
optical record
threshold
jitter
error rate
Prior art date
Application number
TW96140830A
Other languages
Chinese (zh)
Inventor
Yu Zhou
Tek Seow Loi
Original Assignee
Koninkl Philips Electronics Nv
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Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200842846A publication Critical patent/TW200842846A/en

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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
    • G11B7/002—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
    • G11B7/00375—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G11B19/041—Detection or prevention of read or write errors
    • 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
    • G11B20/1816—Testing
    • 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
    • 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
    • G11B20/1816—Testing
    • G11B2020/1823—Testing wherein a flag is set when errors are detected or qualified
    • 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
    • G11B2020/1869—Preventing ageing phenomena from causing data loss, e.g. by monitoring the age of record carriers or by recognising wear, and by copying information elsewhere when a record carrier becomes unreliable
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

A method (300) of determining a deterioration parameter of an optical record carrier (10) based on an optical record carrier characteristics signal parameter value obtained from multiple readout parameters upon inserting the optical record carrier (10) into a drive (100) is disclosed which is useful for optical discs such as CD's, DVD's and BD's, gives an early indication of optical record carrier deterioration and extends the lifetime of the optical record carrier (10).

Description

200842846 九、發明說明： 【發明所屬之技術領域】 本標的係關於光學碟片，而且更具體言之，其關於光學 碟片劣化之偵測。 【先前技術】 美國專利2006/015 8986揭示一種檢驗一相變類型光學記 錄媒體之方法。該方法使用一雷射功率在一磁執上重複執200842846 IX. INSTRUCTIONS: [Technical field to which the invention pertains] This standard relates to optical discs, and more particularly to the detection of optical disc degradation. [Prior Art] U.S. Patent No. 2006/015,8,986 discloses a method of testing a phase change type optical recording medium. The method uses a laser power to repeat the execution on a magnetic handle

行一重寫操作，該雷射功率高於在室溫使一再生信號之抖 動變成最小之功率值。該方法進一步要求 :定次數後測量該再生信號的一抖動值’而 里抖動值是^係等於或小於—參考值。該㈣值並未給予 記錄載體劣化的一良好指示，而且該等結果並不精確。 有利的係，具有一種精確地偵測記錄載體劣化之方法及 驅動器’其可用以延長該記錄載體之壽命。 【發明内容】 =示一種將該光學記錄載體插人至—驅動器時基於從多 〜貝出 &gt; 數所獲知的_光學記錄載體特徵信號參數值而決 疋一光學記錄載體的一劣&amp;參數之方法。 詈、種包括一劣化參數決定單元之光學驅動器，其配 用乂將6亥光學記錄載體***至該驅動器時基於從多重 一 &gt;斤獲彳于的一光學記錄載體特徵信號參數值而決定 一光學記錄載體的-劣化參數。 另外，可決定一 電腦程式實施。 光學記錄載體 的一劣化參數之方法與一 126331.doc 200842846 【實施方式】 一種圮錄載體（如DVD)包含依一連續螺旋形式或多個同 心圓形式之至少一磁執，其中資訊可依資料圖案之形式儲 存。該記錄載體可為一其中資訊可儲存或記錄之可記錄 (R)或可重寫（RW)類型，如 DVD+RW、DVD-RW、DVD+R、 BD_RE(單一及多層）。該資訊一般而言係藉由使用例如雷 射束之輻射束加以記錄/播放。 圖1係顯示一用於記錄/讀取一光學可重寫記錄載體丨〇之 範例驅動器1 00之結構的一方塊圖。該光學可重寫記錄載 體10係藉由一轉軸馬達12進行恆定角速度（CAV)控制或恆 定線性速度（CLV)控制。應注意，在全篇文件中，該參考 數字10指一光學可重寫記錄載體，而且該文件中揭示之標 的係關於光學可重寫記錄載體。 一光學拾取單元14藉由使用從一雷射二極體所發射之雷 射光（於一記錄功率值）將資料記錄在該光學記錄載體工〇 上。當已記錄該資料時，將其供應給一編碼器單元丨8，並 將藉由該編碼器單元1 8所編碼之資料供應給一雷射二極體 驅動單元16。該雷射二極體驅動單元16基於該已編碼資料 而產生一驅動器信號，並將該驅動器信號供應給該光學拾 取單元14之雷射二極體。此外，將來自一控制單元24的一 k制h號供應給該雷射二極體驅動單元16，以便藉由該控 制信號決定該記錄策略及記錄功率。 然而’當從該光學記錄載體1 0讀取資料時，該光學拾取 單元14之雷射二極體發射具有一讀取功率（讀取功率 &lt;記錄 126331.doc 200842846 功率）之雷射光，而且接收兮$汾本 、 按收該反射光將該接收之反射光In a rewrite operation, the laser power is higher than the power value at which the jitter of a reproduced signal is minimized at room temperature. The method further requires: measuring a jitter value of the reproduced signal after a predetermined number of times and wherein the jitter value is equal to or less than - a reference value. This (iv) value does not give a good indication of deterioration of the record carrier, and the results are not accurate. Advantageously, there is a method and driver&apos; that accurately detects degradation of the record carrier, which can be used to extend the life of the record carrier. SUMMARY OF THE INVENTION </ RTI> </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> <RTIgt; The method of the parameter. And an optical drive comprising a degradation parameter determining unit, configured to determine a parameter value of an optical record carrier characteristic signal obtained from the multiple one when the 6H optical record carrier is inserted into the driver - Degradation parameters of the optical record carrier. In addition, a computer program implementation can be determined. Method for degrading a parameter of an optical record carrier and a method for 126331.doc 200842846 [Embodiment] A recording carrier (such as a DVD) comprises at least one magnetic file in a continuous spiral form or a plurality of concentric circular patterns, wherein the information can be based on information The form of the pattern is stored. The record carrier can be of a recordable (R) or rewritable (RW) type in which information can be stored or recorded, such as DVD+RW, DVD-RW, DVD+R, BD_RE (single and multi-layer). This information is generally recorded/played by the use of a beam of radiation such as a laser beam. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the construction of an exemplary driver 100 for recording/reading an optical rewritable record carrier. The optical rewritable record carrier 10 is subjected to constant angular velocity (CAV) control or constant linear velocity (CLV) control by a spindle motor 12. It should be noted that throughout the document, the reference numeral 10 refers to an optically rewritable record carrier, and the subject matter disclosed in this document relates to an optically rewritable record carrier. An optical pickup unit 14 records data on the optical record carrier process by using laser light (at a recording power value) emitted from a laser diode. When the material has been recorded, it is supplied to an encoder unit 丨8, and the data encoded by the encoder unit 18 is supplied to a laser diode driving unit 16. The laser diode driving unit 16 generates a driver signal based on the encoded data and supplies the driver signal to the laser diode of the optical pickup unit 14. Further, a k-number h from a control unit 24 is supplied to the laser diode driving unit 16 to determine the recording strategy and recording power by the control signal. However, when reading data from the optical record carrier 10, the laser diode of the optical pickup unit 14 emits laser light having a read power (read power &lt; record 126331.doc 200842846 power), and Receiving 兮$汾本, receiving the reflected light to receive the reflected light

轉換成一電信號，而且獲得一靖 RConverted into an electrical signal, and get a Jing R

丄w 又付項取口琥。將該讀取RF 仏號供應給一 RF信號處理單元2〇。丄w also pays for the item. The read RF nickname is supplied to an RF signal processing unit 2A.

該RF信號處理單元2〇包括—等化器、二進制化單元、一 鎖相迴路（PLL)單元，而且將該讀取汉17信號二進制化、產 生同步時脈，並將此等信號供應給一解碼器單元22。該 解碼器單元22基於此等供應信號而解碼資料，並且輸出該 已解碼資料作為讀取資料。 亦將來自該職號處理單之讀取RF信號供應給該 控制單元24，用於評估該讀取信號品質。該驅動器1〇〇亦 包含一電路（用於資料讀出），其藉由分別產生一循軌誤差 信號或一聚焦誤差信號及在該光學可重寫記錄載體1〇上形 成的一擺動信號而控制聚焦伺服或循執伺服（例如用於位 址解調變或用於控制旋轉數目）。該等伺服控制結構與習 知驅動器系統中的一樣，因而不詳細加以說明。 圖1中所示之構造僅說明與該驅動器之通用操作相關之 部分。用於控制該光學拾取單元、該轉轴馬達、該滑動馬 達及該等控制電路的伺服電路的說明與詳細解釋則被省 略，因為其係以與習知系統中雷同的方式來建構。 該光學記錄載體10劣化率取決於該光學記錄載體製程及 所使用記錄層材料（例如用於相變可重寫記錄載體）。於大 量重寫後，該光學記錄載體10之微結構（尤其該記錄層）中 存在若干改變，例如在溝槽之中心存在充氣空隙。該記錄 載體劣化係反映在一 HF抖動信號增加、一區塊錯誤率計數 126331.doc 200842846 增加及一反射率信號（R14H)減少。The RF signal processing unit 2 includes an equalizer, a binarization unit, a phase locked loop (PLL) unit, and binarizes the read 17 signal, generates a synchronization clock, and supplies the signals to one Decoder unit 22. The decoder unit 22 decodes the material based on the supply signals and outputs the decoded material as the read data. A read RF signal from the job number is also supplied to the control unit 24 for evaluating the quality of the read signal. The driver 1 〇〇 also includes a circuit (for data reading) which generates a tracking error signal or a focus error signal and a wobble signal formed on the optical rewritable record carrier 1 分别, respectively. Control focus servo or slave servo (for example for address demodulation or for controlling the number of rotations). These servo control structures are the same as in the conventional drive system and will not be described in detail. The configuration shown in Figure 1 only illustrates the portions associated with the general operation of the drive. Descriptions and detailed explanations of the servo circuit for controlling the optical pickup unit, the spindle motor, the sliding motor, and the control circuits are omitted because they are constructed in the same manner as in the conventional system. The rate of deterioration of the optical record carrier 10 depends on the optical record carrier process and the recording layer material used (e.g., for phase change rewritable record carriers). After extensive rewriting, there are several variations in the microstructure (especially the recording layer) of the optical record carrier 10, such as the presence of inflatable voids in the center of the trench. The deterioration of the record carrier reflects an increase in the jitter signal of one HF, an increase in the block error rate count of 126331.doc 200842846, and a decrease in the reflectance signal (R14H).

圖2顯示隨著重寫及抹除次數之增加的一已記錄崎號 ㈣錯誤率、—HF抖動信號、―同位外部（p〇)不可校正錯U &gt;及-反射率信號（R14H•在徑向位置所測量之反射效率） 的-通用趨勢。直接重寫(D〇w)係可寫入及抹除一可重寫 光學記錄载體U)之次數。如圖2中所示，㈣塊錯誤率及 該HF抖動信號隨著直接重寫循環増加而增加，而且反射 率信號（RUH)位準隨著直接重寫循環增加而減少。當該 直接重寫循環達到某—料而且該可重寫光學記錄載體 1〇(參考圖1)表面已退化時，於資料讀出期間該可重寫光 學記錄載體1 0之退化開&amp;造成同位外部(P 0)不可校正錯 誤’其終將引起該驅動器1G()(參照圖υ無法讀取該特定 資料。 當在該SP模式（根據DVD視訊格式標準，sp指單一播放 圯錄模式，而且表示用於編碼視訊之位元率，其在4·5 GB 的單層DVD上提供兩小時之記錄時間）使用該可重寫光 子忑錄載體10記錄半小時片段時，於用完該整個資料區域 前，該可重寫光學記錄載體1〇已記錄四次。該使用者之感 头係已使用该可重寫光學記錄載體丨〇 一次，但實際上，已 更新.亥‘案系統四次。在一無效率之後端應用程式之情況 中，可更新該檔案系統二或三次以上，而導致十二次重 寫。此意謂’該檔案系統區域可能已達到1〇〇〇或更多之直 接重寫循ί展’卻可能寫入佔用大部分記錄載體空間之資料 區域）於500直接重寫循環。此外，相較於其他區域，該 126331.doc 200842846 槽案系統區域可能具有一記錄載體劣化問顯， ^ 阳且έ亥使用 者較宣告更早開始看見可重寫光學記錄載體1〇之讀取及寫 入問題。 … 已努力改良該光學可重寫記錄載體10(參照圖υ之直接 重寫（DOW)循環，其係可寫人及抹除—可重寫記錄載體之 次數。根據該DVD+RW標準，當以最佳記錄功率記錄時， 該可重寫記錄載體Π)應支援(當所有參數在其規定範圍内 ^最多至大約画直接重寫循環。用以增加可重寫記錄 載體直接重寫循環之努力已專注在策略改良及寫人功率減 少0 杲國專利2006/0158986中。，、 ^ ^ ^ …π S〜A K用科勳信號作為 W、彔載體4化的一指示器。單獨料 ^ ^ 科動並未給予該記錄載 體品皙 ΛΑ _ ώ b k J ^ ，”V 个而•丁 體品質劣化的—良好指示，而且該等結果不精確。 二月-種精確地伯測光學記錄載體劣化之方法300。該 /匕括當將該光學記錄載體10***至—驅動器 美 於從多重讀出參數所獲得 ' 值而、，定f的先予圮錄載體特徵信號參數 值：决疋-先學記錄载體10的一劣化參數。 早獨使用抖動之方法 警報。已知抖動w ((光予錢載體劣化之）假 能由於例如不良寫入策略或不Μ 統效症或不良記錄載體 ：不良糸 抖動位準並未隱含…種因素。應注意的係-高 然。使用多重嘈屮夾^ 午位羊，或者反之亦 可靠之結果。 予風體另化獒供較精確且 在一具體實施例中， Μ夕重靖出參數包含下列之至少 126331.doc 200842846 一 -HF抖動信號值；η)一&amp;塊錯誤率計數值；及 一反射率信號值，而且該至少—讀出參數係於啟動期間在 該光學記錄載體的-檔案系統區域中所決^。該三個作號 (亦即i)該HF抖動信號值Π)該區塊錯誤率計數值及出)= 射率信號值）係用作指示器，以評價該光學記錄载體劣 化。通常，該光學記錄載體由於可重複之重寫而變成劣 化，該已記錄HF抖動信號及該區塊錯誤率位準增加，而且 該記錄載體反射率（以％計）減少。使用該反射率信號 (R14H)增強決定該記錄載體劣化之精確度。 &quot; 此外，該HF抖動信號、該區塊錯誤率計數及該反射率 “號係於啟動期間在該光學記錄載體1〇的一檔案系統區域 中所決定。相較於該資料區域，該光學可重寫記錄載體⑺ 之檔案系統區域通常將更頻繁重寫三至四次。因此，決定 該光學記錄載體1 〇之檔案系統區域中之動信號、該區 塊錯誤率計數及該反射率信號確保該光學記錄載體劣化的 一可靠偵測及一早期指示。 在又另一具體實施例中，於該啟動期間決定該光學記錄 載體10之槽案系統區域中之HF抖動信號、該區塊錯誤率計 數及該反射率信號包含下列兩步驟： 步驟1 ··每毫秒從該光學記錄載體丨〇讀取 i) 一 HF抖動信號值 Π) —區塊錯誤率計數值及 iii) 一反射率信號值達一預定旋轉數目；以及 步驟2 ··使用每毫秒所獲得之讀取hf抖動信號值、該區塊 126331.doc 200842846 錯疾率計數值及該反射率信號值計算 i) 一平均HF抖動信號值 ii) 一平均區塊錯誤率計數值及 iii) 一平均反射率信號值。 该整個光學記錄載體劣化偵測係在一預定旋轉數目間連 續實現’並且考慮平均值。平均過遽出光學記錄載體缺陷 之影響，而且使該測量結果較精確。該預定旋轉數目可 大約十。 Ό馬 在又另一具體實施例中’該方法包含檢查一預定條件， 以決定該光學記錄載體劣化◊此包含決定該平均反射率作 號值是否少於-反射率臨限值；若為是，則決定是否收 平均HF抖動信號值大於一抖動臨限值並且Η)該平均區塊錯 誤率計數大於一區塊錯誤率計數臨限值；而且若為是，: 宣告該記錄載體為劣化。該光學記錄載體劣化檢查=一2 擬碼表示法給定如下·· 1 若（平均反射率信號 &lt;反射率臨限值） 則{若（（平均HF抖動信號〉抖動臨限值）且（平肖區塊錯誤 率計數 &gt; 區塊錯誤率計數臨限值）） 則{光學記錄載體劣化} } 用以蚊該光學記錄載體劣化之預定條件係基於該等研 究結果。頃發現’當該光學記錄載體10開始劣化時，該hf 抖動=該區塊錯誤率增加，而且該反射率信號減少。°當與 考慮單獨之抖動或單獨之區塊錯誤率比較時，使用入ϋ 者（該HF抖動、該區塊錯誤率計數及該反射率信號）=測= 126331.doc -12- 200842846 光學記錄載體劣化狀態係 高區塊錯誤率ά ^純低區塊錯誤率或 +仁低抖動可能由於驅動器不同所造成。此 外，某些情況中，該弁風卞林番 换扭崎玄〃 ^錄載體之相對較高抖動及高區 塊錯誤率伴奴反射率信號遠 ^^ .s ^ 疋牡呆伹早以上可能由於寫入策 略之差異（亦即不狗良好的寫入策旬所造成。因此，在所 ’於檢查該抖動及該區塊錯誤率位準前使用該 當與該抖動及該區塊錯誤率比較時，該反射 率^號對光學記錄載體劣彳卜私 、 _ 感。對於某些光學記錄 载體，该反射率信號值之減少並不明顯。為了精確地伯測 (此類媒體之）該光學記錄載體劣 、 4 一 執菔$化（基於研究結果）設定 一較局之抖動及區塊錯誤率臨限值位準。 &gt;在又另-具體實施例中，該方法包含決定該平均反射率 “遽值是否大於-反射率臨限值；若為是，則決定是否〇 =均HF抖動信號值A於大約14%並且Η)該平均區塊錯誤 體為：：於大：5°°;而且若為是’則宣告該光學記錄載 骽马名化。一虛擬碼表示法係給定如下·· 若（平均反射率信號 &gt;反射率臨限值）則 若（（平均HF抖動信號&gt;14%)且（平均區塊錯 &gt;500)) 則{光學記錄載體劣化} ★圖3顯示-說明該光學記錄載體劣化方法之詳細步驟之 流程圖的一範例，其係說明如下： =於步驟302,將該光學記錄載體1〇(參照叫***至該驅 動器1〇〇(參照圖D中，而且初始化該光學記錄载體劣化程 126331.doc 200842846 序。將該計數器初始化至零，而且在該光學記錄載體1〇上 執行一開始位置的一搜尋。 b)於步驟304，對於該光學記錄載體10之每一旋轉，致能 角度中斷，而且計數樣本數目。 Ο於步驟306，每毫秒從該驅動器1〇〇之解碼器暫存器讀回 一 HF抖動信號、一同位内部（PI)和、A1值（參照圖4)、A2 值（參照圖4)及該CALF值（參照圖4)。 d) 於步驟308，繼續該光學記錄載體1〇是否已完成十次旋 轉的一檢查。 e) 若該光學記錄載體10已完成十次旋轉，則於步驟31〇， 計算該平均HF抖動信號值、該平均區塊錯誤率計數及該平 均反射率信號值（R14H)。若該光學記錄載體1〇尚未完成十 次旋轉，則重複步驟306與308，直到該光學記錄載體1〇已 完成十次旋轉。 f) 於步驟3 12，若滿足一預定條件，則宣告該光學記錄載 體10為劣化。 本質上，於該啟動期間及於光學記錄載體辨識後，一光 學記錄載體劣化程序係在該檔案系統區域中進行（例如可 記錄及可重寫DVD之PSN 0x30000至0x34000。根據 DVD+R視訊格式規格，此位址範圍係保留用於寫入該槽案 系統）。該劣化係藉由測量該HF抖動信號、該區塊錯誤率 計數及該反射率信號所決定。每毫秒取樣該等信號達十次 旋轉，以便減少該測量雜訊。一旦該檔案系統區域之HF信 號符合該預定條件，則該光學記錄載體10具有一劣化之符 126331.doc -14· 200842846 號，而且該檔案系統可能不夠良好而無法再使用。 圖4示意性說明一範例DVD碟片之反射率信號值之決 定。如圖4中所示’該垂直軸代表該振幅，而且該水平車由 代表該時間。CALF係該HF信號之平均值，Alpeak係該HF 信號振幅之最大峰值，A2peak係該最小HF信號振幅，而且Figure 2 shows a recorded odd number (four) error rate, -HF jitter signal, "colocated external (p〇) uncorrectable error U &gt; and - reflectance signal with increasing rewriting and erasing times (R14H• The general trend of the reflection efficiency measured by the radial position. Direct overwrite (D〇w) is the number of times a rewritable optical record carrier U) can be written and erased. As shown in Fig. 2, the (iv) block error rate and the HF jitter signal increase as the direct overwrite cycle increases, and the reflectance signal (RUH) level decreases as the direct overwrite cycle increases. When the direct rewrite cycle reaches a certain level and the surface of the rewritable optical record carrier 1 (refer to FIG. 1) has deteriorated, the rewritable optical record carrier 10 is degraded during data reading. The co-located external (P 0) uncorrectable error 'will eventually cause the drive 1G () (refer to Figure υ can not read the specific data. When in the SP mode (according to the DVD video format standard, sp refers to the single play recording mode, Also, the bit rate for encoding video is provided, which provides two hours of recording time on a single layer DVD of 4·5 GB. When the rewritable photon recording carrier 10 is used to record a half hour segment, the entire time is used up. The rewritable optical record carrier 1 has been recorded four times before the data area. The user's sensory head has used the rewritable optical record carrier once, but in fact, has been updated. Four times. In the case of an inefficient post-application, the file system can be updated two or more times, resulting in twelve rewrites. This means that the file system area may have reached 1 or more. More direct rewrites It is possible to write to the data area that occupies most of the record carrier space. In addition, compared to other areas, the 126331.doc 200842846 trough system area may have a record carrier degradation, ^ yang and έhai users start to see the rewritable optical record carrier 1 较 earlier than the announcement And write problems. ... efforts have been made to improve the optical rewritable record carrier 10 (refer to the Direct Overwrite (DOW) cycle of the figure, which is the number of writeable and erased - rewritable record carriers. According to the DVD+RW standard, When recording at the optimum recording power, the rewritable record carrier 支援) should support (when all parameters are within their specified range ^ up to approximately draw a direct overwrite loop.) to increase the rewritable record carrier directly overwrite the loop Efforts have been focused on strategy improvement and writing power reduction 0 杲 专利 patent 2006/0158986., ^ ^ ^ ... π S ~ AK with Kexun signal as an indicator of W, 彔 carrier 4. Separate ^ ^ Contemporary Controls did not give the record carrier 皙ΛΑ ώ ώ bk J ^ , "V and the deterioration of the quality of the body" - good indication, and the results are not accurate. February - accurate accurate measurement of optical record carrier degradation Method 300. The method comprises: inserting the optical record carrier 10 into a drive-like device to obtain a value obtained from multiple readout parameters, and determining a characteristic value of the pre-recorded carrier characteristic signal of the f: Learning a degradation parameter of the record carrier 10. The method of jitter is used to alert. It is known that the jitter w ((the light is degraded by the money carrier) can be due to, for example, a bad write strategy or an unreasonable effect or a bad record carrier: bad 糸 jitter level is not implied... It should be noted that the system - Gao Ran. Use multiple clamps ^ noon sheep, or vice versa. The pre-winding is more accurate and in a specific embodiment, the parameters include The following at least 126331.doc 200842846 a-HF jitter signal value; η) a & block error rate count value; and a reflectivity signal value, and the at least - read parameter is during the start of the optical record carrier - In the file system area, the three numbers (i.e., i) the HF jitter signal value Π) the block error rate count value and the output) signal are used as indicators to evaluate the The optical record carrier is degraded. Typically, the optical record carrier becomes degraded due to reproducible overwriting, the recorded HF jitter signal and the block error rate level increase, and the record carrier reflectance (in %) is reduced. Use this reflectance signal (R14H The enhancement determines the accuracy of degradation of the record carrier. Further, the HF jitter signal, the block error rate count, and the reflectance "number" are in a file system area of the optical record carrier 1〇 during startup. Decide. The file system area of the optical rewritable record carrier (7) will typically be rewritten three to four times more frequently than the data area. Therefore, determining the dynamic signal in the file system area of the optical record carrier 1 , the block error rate count and the reflectance signal ensures a reliable detection and an early indication of degradation of the optical record carrier. In still another embodiment, determining the HF jitter signal, the block error rate count, and the reflectance signal in the slot system region of the optical record carrier 10 during the startup comprises the following two steps: Step 1 · Reading from the optical record carrier 每 every millisecond i) an HF jitter signal value Π) - block error rate count value and iii) a reflectance signal value up to a predetermined number of rotations; and step 2 · using every millisecond Obtain the read hf jitter signal value, the block 126331.doc 200842846 error rate count value and the reflectance signal value calculation i) an average HF jitter signal value ii) an average block error rate count value and iii) Average reflectance signal value. The entire optical record carrier degradation detection is continuously implemented between a predetermined number of rotations&apos; and an average value is considered. The average overshoot of the optical record carrier defects is made and the measurement results are more accurate. The predetermined number of rotations can be approximately ten. In another embodiment, the method includes: inspecting a predetermined condition to determine whether the optical record carrier is degraded, thereby determining whether the average reflectance value is less than a reflectance threshold; if And determining whether the average HF jitter signal value is greater than a jitter threshold and Η) the average block error rate count is greater than a block error rate count threshold; and if so,: declaring the record carrier as degraded. The optical record carrier deterioration check = a 2 pseudo code representation is given as follows: 1 if (average reflectance signal &lt; reflectance threshold) then {if ((mean HF jitter signal > jitter threshold) and ( Pingxiao block error rate count &gt; Block error rate count threshold)) Then {optical record carrier degradation} } The predetermined condition for the mosquito to degrade the optical record carrier is based on the results of the studies. It has been found that when the optical record carrier 10 begins to deteriorate, the hf jitter = the block error rate increases, and the reflectance signal decreases. ° When comparing with the individual jitter or the individual block error rate, the user is used (the HF jitter, the block error rate count and the reflectance signal) = measurement = 126331.doc -12- 200842846 Optical recording The carrier degradation state is a high block error rate ά ^ pure low block error rate or + kernel low jitter may be caused by different drivers. In addition, in some cases, the hurricane 卞 番 换 换 换 换 〃 〃 〃 〃 〃 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 载体 相对 载体 相对 载体 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对Due to the difference in the write strategy (that is, the dog is not well written), therefore, the use of the jitter and the error rate of the block before comparing the jitter and the block error rate level is compared. In this case, the reflectance ^ is inferior to the optical record carrier. For some optical record carriers, the decrease in the reflectance signal value is not significant. For accurate detection (such media) The optical record carrier is inferior, and the comparison is based on the results of the study to set a comparison jitter and block error rate threshold level. &gt; In yet another embodiment, the method includes determining the average The reflectivity "whether the value of 遽 is greater than the reflectance threshold; if YES, it is determined whether 〇 = the average HF jitter signal value A is about 14% and Η) The average block error body is:: large: 5° °; and if it is 'declared, the optical record is contained in the name of the horse. The code representation is given as follows: (If (average reflectance signal &gt; reflectance threshold), then ((mean HF jitter signal &gt; 14%) and (average block error &gt; 500)) {optical Record Carrier Degradation} Figure 3 shows an example of a flow chart illustrating the detailed steps of the optical record carrier degradation method, which is described as follows: = In step 302, the optical record carrier 1 is inserted (refer to the driver) 1 (refer to Figure D, and initialize the optical record carrier degradation process 126331.doc 200842846. The counter is initialized to zero and a search for a starting position is performed on the optical record carrier 1). In step 304, for each rotation of the optical record carrier 10, the enable angle is interrupted, and the number of samples is counted. In step 306, an HF jitter signal is read back from the decoder register of the driver 1 毫秒 every millisecond. , an in-position internal (PI) sum, an A1 value (refer to FIG. 4), an A2 value (refer to FIG. 4), and the CALF value (refer to FIG. 4). d) In step 308, whether the optical record carrier 1 is completed is completed. A check of ten rotations. e) If After the optical record carrier 10 has completed ten rotations, the average HF jitter signal value, the average block error rate count, and the average reflectance signal value (R14H) are calculated in step 31. If the optical record carrier 1 has not been After ten rotations are completed, steps 306 and 308 are repeated until the optical record carrier 1 has completed ten rotations. f) At step 312, if a predetermined condition is satisfied, the optical record carrier 10 is declared to be degraded. During the startup and after identification of the optical record carrier, an optical record carrier degradation program is performed in the file system area (eg, PSN 0x30000 to 0x34000 of recordable and rewritable DVDs). According to the DVD+R video format specification, this address range is reserved for writing to the slot system). The degradation is determined by measuring the HF jitter signal, the block error rate count, and the reflectance signal. The signals are sampled ten times per millisecond to reduce the measurement noise. Once the HF signal of the file system area meets the predetermined condition, the optical record carrier 10 has a degraded character 126331.doc -14. 200842846 and the file system may not be good enough to be used again. Figure 4 is a schematic illustration of the decision of the reflectance signal value of an exemplary DVD disc. As shown in Fig. 4, the vertical axis represents the amplitude, and the horizontal car represents the time. CALF is the average of the HF signal, Alpeak is the maximum peak amplitude of the HF signal, A2peak is the minimum HF signal amplitude, and

Al=Aipeak〜CALF ; A2 = A2peak〜CALF ; 該反射率信號R14H係藉由使用取樣之HF A1、A2及 CALF信號加以測量如下： R14H=I14H/DVD—MIRN—CALIBRATED，其中 I14H代表 該反射效率，而且Al=Aipeak~CALF; A2 = A2peak~CALF; The reflectance signal R14H is measured by using the sampled HF A1, A2 and CALF signals as follows: R14H=I14H/DVD—MIRN—CALIBRATED, where I14H represents the reflection efficiency ,and

R14H=(A1+CALF)/ DVD_MIRN_CALIBRATED 此處，DVD_MIRN—CABLIBRATED代表在一 MIRN碟片 上測量之平均I14H或平均反射效率。例如DVD-ROM、 DVD+RW、DVD+R DL之不同類型之碟片具有不同 DVD_MIRN_CALIBRATED值，而且應於該碟片生產造期 間以該對應鏡射DVD-ROM、DVD+RW、DVD+R DL碟片 加以校準。DVD_MIRN—CALIBRATED係於碟片生產期間 使用一 DVD鏡射碟片加以校準，並將其儲存於該驅動光學 拾取單元或EEPROM中。該校準之DVD_MIRN_CALIBRATED 值係用作計算以％計之碟片反射率的一參考。 在又另一具體實施例中，該抖動臨限值、該區塊錯誤率 計數臨限值及該反射率臨限值係按照i)該光學記錄載體10 ii)用以將該HF抖動信號值、該區塊錯誤率計數值及該反射 126331.doc -15- 200842846 率t號值解碼之解碼器22(參照圖丨）之特徵所決定。該抖動 及區塊錯誤率位準可基於該解碼器之設計而不同。因此， 基於„亥解碼器之設計而決定該抖動臨限值、該區塊錯誤率 計數臨限值及該反料臨限值將料㈣確之結果。 。亥等臨m值位準係於以下期間決冑：^該光學記錄载體 10生產期間’· ii)當調整該光學記錄載體1()之寫人策略之時 ::期間；及iii)當測試該光學記錄載體10上之直接重寫效 月b時期間。基於此資訊而決^每—光學記錄載體類型之臨 限值位準，並且減該光學記_細而將錢存於該驅 動器非揮發性記憶體中。通常，對於該等可重寫光學記錄 載體，於劣化前，該HF抖動信號、該區塊錯誤率及該反射 率信號R14H值係實質上一致，而且當該光學記錄載體開 始顯示劣化時，此等數值將迅速增加。該區塊錯誤率計數 可近似以綱計數以上增加；該_斗動信號可增加最多至 大約 &gt;咖’而且該反射率信號值Rmh可減少至低於該光 =錄：體規格要求的一位準。然而，對於某些光學記錄 載體’該反射率信號㈣慨減少並不明顯，而且 反射率信號RU值係由於基板厚度等所造成。因此，該反 =率信號R14H係用作判斷該光學記錄載體劣化之參=之 計數及該反射率臨限值係於同位 /°D免錯誤率 該光學記錄载體上之前予以決定。:不：正錯誤出現在 …、法使用同位外 校正錯誤’因為在當該槽案系統開始看見此類錯誤= 126331.doc 16 200842846 間，該驅動器100將無法用於讀 %崎取，而且無法再使用該光 學記錄載體10。該光學記錄載體次 戮餵4化方法應能夠於無法再 使用該光學§己錄載體1 〇前在一雜|卩比m上 ^ 稍早階段偵測該光學記錄載 體劣化。因此，於該使用者開始丢 4闭始耆見不可校正錯誤前在一 稍早階段設定該等臨限值（亦即該抖動臨限值、該區塊錯 誤率計數臨限值及該反射率臨限值）。此具有保留某些直 接重寫循環詩後續資料管理以延長該光學記錄載體壽命 之優點。 fR14H=(A1+CALF)/ DVD_MIRN_CALIBRATED Here, DVD_MIRN_CABLIBRATED represents the average I14H or average reflection efficiency measured on a MIRN disc. Different types of discs such as DVD-ROM, DVD+RW, DVD+R DL have different DVD_MIRN_CALIBRATED values, and should be mirrored during the production of the disc by DVD-ROM, DVD+RW, DVD+R DL The disc is calibrated. The DVD_MIRN-CALIBRATED is calibrated using a DVD lens during disc production and stored in the drive optical pickup unit or EEPROM. The calibrated DVD_MIRN_CALIBRATED value is used as a reference for calculating the reflectance of the disc in %. In still another embodiment, the jitter threshold, the block error rate count threshold, and the reflectance threshold are based on i) the optical record carrier 10 ii) for the HF jitter signal value The block error rate count value and the characteristics of the decoder 222331.doc -15- 200842846 rate t value decoded decoder 22 (see FIG. This jitter and block error rate level can vary based on the design of the decoder. Therefore, the jitter threshold, the block error rate count threshold, and the counter threshold are determined based on the design of the decoder, and the result is (4). The following period is determined: ^ during the production of the optical record carrier 10 '· ii) when adjusting the writer strategy of the optical record carrier 1 (): during; and iii) when testing the optical record carrier 10 directly Rewriting the period of the validity month b. Based on this information, the threshold value of each type of optical record carrier is determined, and the optical record is reduced and the money is stored in the non-volatile memory of the drive. Usually, For such rewritable optical record carriers, the HF jitter signal, the block error rate, and the reflectance signal R14H are substantially identical prior to degradation, and when the optical record carrier begins to exhibit degradation, such values Will increase rapidly. The block error rate count can be increased by more than the sum of the count; the _ turbulence signal can be increased up to about > coffee and the reflectance signal value Rmh can be reduced below the light = recorded body One of the specifications required. However, right Some optical record carriers 'the reflectance signal (4) is not significantly reduced, and the reflectance signal RU value is caused by the thickness of the substrate, etc. Therefore, the inverse rate signal R14H is used as a parameter for judging the deterioration of the optical record carrier. The count of = and the reflectance threshold are determined before the in-situ / °D error-free rate on the optical record carrier.: No: positive error occurs in ..., the method uses the same position to correct the error 'because in the slot The system begins to see such errors = 126331.doc 16 200842846, the drive 100 will not be able to read the % acquisition, and the optical record carrier 10 can no longer be used. The optical record carrier should be able to It is no longer possible to use the optical § record carrier 1 〇 before a miscellaneous | 卩 m m on the early stage to detect the deterioration of the optical record carrier. Therefore, before the user starts to lose 4 closed, see the uncorrectable error before The threshold is set at an earlier stage (ie, the jitter threshold, the block error rate count threshold, and the reflectance threshold). This has a reservation for retaining some direct rewrite loop poems. To extend the life of the optical recording carrier of advantages. F

在又另-具體實施例中’將該抖動臨限值、該區塊錯誤 率臨限值及該反射率臨限值儲存於複數個光學記錄载體類 型之驅動器100中。已觀察，該等光學記錄載體之約70% 具有相同特徵，而且該等光學記錄載體特徵之30%變化極 大。（在某些光學記錄載體中）使用所有光學記錄載體的一 組臨限值可導致光學記錄載體劣化之早期警報之問題。此 可影響δ亥光學記錄載體使用能力。因此，有利的係，設定 每一光學記錄載體之對應臨限值，以便可儘量多次地使用 相同類型之光學記錄載體。 光學記錄載體10(參照圖1)之壽命係藉由在從該驅動器 1〇〇(參照圖1)卸載該光學記錄載體10前將該光學記錄載體 1〇上之完整檔案系統區域位移及複製至該光學記錄載體1〇 上的一新區域而延長。可於決定該光學記錄載體1〇之劣化 參數時執行位移及複製。該方法能夠延長可重寫光學記錄 載體10壽命至少兩倍。此外，該位移及複製程序可由該驅 動器加以實現。 126331.doc -17- 200842846 〇x30_至Gx34_之所有存取可存取該新Μ。於彈μ 碟片前，將該新FSA之整個内容複製至該舊咖。此致能 該碟片在正常歸播放器上播放。在對於每—單—標題記 錄及彈出該碟片之事件中（亦即可怪定更新該fFSA)，該 冑”將劣化’直到其無法成功地讀回。當此發生時， ' $再可i於正* DVD播放11上播放，但所有記錄及播放操 作仍然可在該記錄器中使用該新FSA加以實現。有可能延 ( *該可重寫光學記錄載體之使用大約9GG至12GG直接重寫 循環。 參照圖1，可將該驅動器100調適成用以執行如以上具體 實施例所揭示之偵測光學記錄载體劣化之方法。為此目 的，該控制單元24係配置成用以決定如以上具體實施例中 所揭示之光學記錄載體10的一劣化參數。該控制單元以包 含一 HF抖動信號測量單元24A，其配置成用以測量該hf抖 動信號。該控制單元24進一步包含—區塊錯誤率計數測量 ( 皁兀24B，其配置成用以測量該讀取資料之區塊錯誤計 數。該控制單元24進一步包含一反射率信號測量單元 24C，其配置成用以測量該反射率信號值。此包含如圖斗中 所示之A1值、A2值及CALF值之測量。該控制單元24進一 步包含一光學記錄載體劣化參數決定單元24D，其配置成 基於該HF抖動信號值、該區塊錯誤率計數值及該反射率信 號值而決定該光學記錄載體劣化。 偵測光學記錄載體劣化之方法可應用於家用電子產品記 錄器。在一家用電子產品記錄器中，一般而言將該權案系 126331.doc -19 - 200842846 統區域分配於0x030000至〇x〇340〇〇之固定位置。此將在此 區域中引起，，早期”媒體劣化，而且可能引起無法再使用該 碟片進行重寫操作之問題。在一資料驅動器之情況中，該 檔案系統區域並非永遠固定於一區域中，而且不存在特定 區域，其將永遠具有較其他區域更多重寫次數。可適當分 散橫跨該碟片之直接重寫，而且將不致如家用電子產品中 的一 s己錄器般面對該檔案系統區域中之”早期，，媒體劣化之 問題。另外，即使該驅動器遭遇局部化媒體劣化的一問 題，要求之解決方案可能不同。在此一情節中，該驅動器 可利用例如DVD+MRW(m〇Unt rainer)格式的一替代缺陷管 理解決方案。 雖然已參照使用DVD碟片之具體實施例解釋該標的，但 其可應用於例如寫入多次可記錄類型（DVD_RW、 D VD+RW、藍光碟片）之所有類型記錄載體。其不限於一 一層單側記錄載體（亦即一雙層記錄載體）或一二層雙側記 錄載體（亦即一雙層雙側記錄載體）。熟習此項技術人士可 在軟體中或在硬體及軟體二者中實施偵測光學記錄載體劣 化之方法的所述具體實施例。熟習實現本文所聲稱之發明 的技術的人士於研讀圖式、揭示内容及隨附的申請專利範 圍之後，可瞭解且實現本文所揭示具體實施例之其他變 化。動詞’’包含”及其詞型變化的使用並不排除申請專利範 圍或說明中未提及之元件或步驟的存在。在元件或步驟前 使用不定冠詞” 一”或，，一個”並不排除複數個此元件或步驟 之存在。該等圖式及描述應僅視為說明性且不限制本標的 126331.doc -20- 200842846 之範疇。 【圖式簡單說明】 本文已在參考附圖之以上說明中進一步僅藉 本發明的態樣、特點及優點’該等圖式中相同參考數a: 示相同或類似部分，且其中·· 子心 /1顯示一用於從一光學記錄載體記錄/讀取資料之_ 器之一不意方塊圖的一範例； 圖2示意性說明一範例DVD碟片iHF信號 寫_w)循環時間； 此對直接重 圖3顯示一說明決定一光學記錄載體之一劣化參數之方 法之詳細步驟之流程圖的一範例；以及 圖4示意性說明一範例DVD碟片之反射率信號值之決 定0 【主要元件符號說明】 10 光學可重寫記錄載體 12 轉軸馬達 14 光學拾取單元 16 雷射二極體驅動單元 18 編碼器單元 20 RF信號處理單元 22 解碼器單元 24 控制單元 24A HF抖動信號測量單元 24B 區塊錯誤率計數測量單元 126331.doc -21 - 200842846 24C 反射率信號測量單元 24D 光學記錄載體劣化參數決定單元 100 驅動器 126331.doc •22-In still another embodiment, the jitter threshold, the block error rate threshold, and the reflectance threshold are stored in a plurality of optical record carrier type drivers 100. It has been observed that about 70% of the optical record carriers have the same characteristics and that the 30% variation of the characteristics of the optical record carriers is extremely large. The use of a set of thresholds for all optical record carriers (in some optical record carriers) can cause problems with early warning of degradation of the optical record carrier. This can affect the ability of the δ hai optical record carrier to be used. Advantageously, therefore, the corresponding threshold of each optical record carrier is set so that the same type of optical record carrier can be used as many times as possible. The life of the optical record carrier 10 (see FIG. 1) is shifted and copied to the complete file system area on the optical record carrier 1 by unloading the optical record carrier 10 from the driver 1 (see FIG. 1). The optical record carrier 1 is extended by a new area on the frame. Displacement and duplication can be performed when determining the degradation parameters of the optical record carrier 1〇. This method can extend the life of the rewritable optical record carrier 10 by at least two times. Furthermore, the displacement and copying procedure can be implemented by the drive. 126331.doc -17- 200842846 All accesses from 〇x30_ to Gx34_ can access the new Μ. Copy the entire contents of the new FSA to the old coffee before playing the μ disc. This enables the disc to play on the normal player. In the event that for each-single-title record and the disc is ejected (and the fFSA can be arbitrarily updated), the 胄" will degrade" until it cannot be successfully read back. When this happens, '$ can i plays on the DVD* 11, but all recording and playback operations can still be implemented in the recorder using the new FSA. It is possible to extend (* the rewritable optical record carrier uses approximately 9GG to 12GG directly Write cycle. Referring to Figure 1, the driver 100 can be adapted to perform the method of detecting degradation of an optical record carrier as disclosed in the above embodiments. For this purpose, the control unit 24 is configured to determine A degradation parameter of the optical record carrier 10 disclosed in the above embodiments. The control unit includes an HF jitter signal measurement unit 24A configured to measure the hf jitter signal. The control unit 24 further includes a block. An error rate count measurement (sapons 24B configured to measure a block error count of the read data. The control unit 24 further includes a reflectance signal measuring unit 24C configured to use The reflectance signal value is measured. This includes the measurement of the A1 value, the A2 value, and the CALF value as shown in the figure. The control unit 24 further includes an optical record carrier degradation parameter determining unit 24D configured to be based on the HF jitter. Determining the degradation of the optical record carrier by the signal value, the block error rate count value, and the reflectance signal value. The method of detecting degradation of the optical record carrier can be applied to a home electronic product recorder. In a home electronic product recorder, In general, the 126331.doc -19 - 200842846 area is assigned to a fixed position of 0x030000 to 〇x〇340〇〇. This will cause in this area, early "media degradation, and may cause no longer The problem of rewriting operations using the disc. In the case of a data drive, the file system area is not permanently fixed in an area, and there is no specific area, which will always have more rewrite times than other areas. Can be properly dispersed across the disc for direct rewriting, and will not face the file system area like a s-recorder in home electronics In the early days, the problem of media degradation. In addition, even if the drive suffers from a problem of localized media degradation, the required solution may be different. In this case, the driver can utilize, for example, DVD+MRW (m〇Unt An alternative defect management solution in the rainer format. Although the subject matter has been explained with reference to a specific embodiment using a DVD disc, it can be applied to, for example, writing multiple recordable types (DVD_RW, D VD+RW, Blu-ray disc). All types of record carriers. They are not limited to a single layer of single-sided record carrier (ie a double-layer record carrier) or a two-layer double-sided record carrier (ie a double-layered double-sided record carrier). The particular embodiment of the method of detecting degradation of an optical record carrier can be implemented in software or in both hardware and software. Other variations to the specific embodiments disclosed herein can be understood and effected by those skilled in the <RTIgt; The use of the verb ''comprise'' and its singular variations does not exclude the existence of the elements or steps that are not mentioned in the scope of the application or the description. The indefinite article "a" or "an" The existence of a plurality of such components or steps. These drawings and descriptions should be considered as illustrative only and do not limit the scope of this standard 126331.doc -20- 200842846. BRIEF DESCRIPTION OF THE DRAWINGS In the above description with reference to the accompanying drawings, the aspects, features, and advantages of the present invention are further described by the same reference numerals a: the same or similar parts, and wherein The heart/1 shows an example of an unintentional block diagram for recording/reading data from an optical record carrier; FIG. 2 schematically illustrates an example DVD disc iHF signal write_w) cycle time; Direct Weight Figure 3 shows an example of a flow chart illustrating the detailed steps of a method of determining a degradation parameter of an optical record carrier; and Figure 4 schematically illustrates the determination of the reflectance signal value of an exemplary DVD disc. DESCRIPTION OF SYMBOLS 10 Optical rewritable record carrier 12 Spindle motor 14 Optical pickup unit 16 Laser diode drive unit 18 Encoder unit 20 RF signal processing unit 22 Decoder unit 24 Control unit 24A HF jitter signal measurement unit 24B Block Error rate count measuring unit 126331.doc -21 - 200842846 24C Reflectance signal measuring unit 24D Optical record carrier deterioration parameter determining unit 100 Driver 126331.doc • 22 -

Claims (1)

200842846 十、申請專利範圍： 1· 一種方法（300)，其包括·· 將：光學記錄載體⑽***至一驅動器⑽)時基於從 多重讀出參數所獲得的一光學記錄载體特徵信號參數： 而決定該光學記錄載體（10)的一劣化參數。 2.如請求们之方法（300)，其中該多重讀出參數包括一册 抖動信號值、-區塊錯誤率計數值及—反射率信號值中 之至少-者，而且該至少一讀出參數係於啟動期間在該 光學記錄载體（1 0)的一檔案系統區域中予以決定。 3·如請求項2之方法，其進一步包括： 每毫秒從該光學記錄載體讀取_HF抖動信號值、⑴ 該區塊錯誤率計數值及Ui)該反射率信號值達一預定旋轉 數目；以及 使用每毫秒所獲得之讀取HF抖動信號值、讀取區塊錯 誤率計數值及讀取反射率信號值計算i卜平均HF抖動^ 號值、H)-平均區塊錯誤率計數值及叫_平均反射率作 號值。 。 4.如請求項3之方法，其進一步包括： =定，平均反射率信號值是否少於—反射率臨限值； 右為疋則决疋疋否〇該平均HF抖動信號值大於—抖 動臨限值及Π)該平均區塊錯誤率計數大於—區塊錯誤率 計數臨限值；以及 右為疋’則宣告該光學記錄載體(10)為劣化。 5·如請求項4之方法，其進一步包括： 126331.doc 200842846 二、:平均反射率^號值是否大於-反射率臨限值； 。:.疋則决定疋否〇該平均HF抖動信號值大於大約 。。及ιι)4平均區塊錯誤率計數大於大約_;以及 若為是’則宣告該光學記錄載體⑽為劣化。 6·如請求項4或5之方法，其進一步包括： 二；）忒光予记錄載體（1〇)之特徵及⑴用以將該抖 動仏就值、㈣塊錯誤率計數值及該反射率信號值解碼 的解碼裔（22)之特徵而決定該抖動臨限值、該區塊錯 誤率計數臨限值及該反射率臨限值。 7·如請求項6之方法，其進一步包括： 於同位外部不可校正錯誤出現在該光學記錄載體上之 前決定該抖動臨限值、該區塊錯誤率計數臨限值及該反 射率臨限值。 8. 如請求項7之方法，其進一步包括： 將一光學記錄载體類型之已決定抖動臨限值、已決定 區塊錯誤率計數臨限值及已決定反射率臨限值儲存於該 驅動器記憶體中；以及 將該光學記錄載體類型***至該驅動器（1〇〇)時使用儲 存之臨限值決定該光學記錄載體之劣化參數。 9. 如請求項1至5中任一項之方法，其中該光學記錄載體 (10)係一 DVD可重寫碟片。 10. 一種方法，其包括： 將該光學記錄載體（1〇)***至一驅動器（1〇〇)後藉由在 從該驅動器（1 〇〇)卸載該光學記錄載體前將該光學記錄載 126331.doc 200842846 體（ίο)上之完整檔案系統區域位移及複製至該光學記錄 載體上的一新區域而延長一光學記錄載體（1〇)之壽命。 11.如請求項10之方法，其中該光學記錄載體（1〇)係如請求 項1至5中任一項所使用之該光學記錄載體。 12· —種光學驅動器（1〇〇)，其包括： 劣化參數決定單元（24D)，其配置成用以將該光學 圮錄載體（10)***至該驅動器（1〇〇)時基於從多重讀出參 數獲得的光學記錄載體特徵信號參數值而決定一光學 吕己錄載體（1 〇)的一劣化參數。 月求項12之光學驅動器（100)，其中該光學驅動器係一 DVD驅動器或一 BD·動器。 存—電腦程式之電腦可讀取媒體，該電腦程 括用以執行一方法之程式碼構件，該方法包括·· 夕將口亥光學呂己錄載體（1〇)***至一驅動器（⑽）時基於從 多㈣出參數獲得的-光學記錄載體特徵信號參數值而 決定一光學記錄載體（1〇)的一劣化參數。 126331.doc200842846 X. Patent Application Range: 1. A method (300) comprising: • inserting an optical record carrier (10) into a driver (10) based on an optical record carrier characteristic signal parameter obtained from multiple readout parameters: A degradation parameter of the optical record carrier (10) is determined. 2. The method of claim (300), wherein the multiple readout parameter comprises a volume of jitter signal values, a block error rate count value, and a reflectivity signal value, and the at least one readout parameter The decision is made in a file system area of the optical record carrier (10) during startup. 3. The method of claim 2, further comprising: reading the _HF jitter signal value from the optical record carrier every millisecond, (1) the block error rate count value, and Ui) the reflectance signal value for a predetermined number of rotations; And using the read HF jitter signal value obtained per millisecond, the read block error rate count value, and the read reflectance signal value to calculate an average HF jitter value, H)-average block error rate count value, and Called _ average reflectivity as the value. . 4. The method of claim 3, further comprising: = determining whether the average reflectance signal value is less than - the reflectivity threshold; and if the right is 疋, then the average HF jitter signal value is greater than - jitter The limit and Π) the average block error rate count is greater than the block error rate count threshold; and the right is 疋' to declare the optical record carrier (10) to be degraded. 5. The method of claim 4, further comprising: 126331.doc 200842846 2. Whether the average reflectance value is greater than the reflectance threshold; :.疋 determines whether the average HF jitter signal value is greater than approximately. . And ιι) 4 the average block error rate count is greater than about _; and if YES, the optical record carrier (10) is declared to be degraded. 6. The method of claim 4 or 5, further comprising: 2;) a characteristic of the record carrier (1) and (1) a value for the jitter, a (four) block error rate count value, and the reflection The jitter threshold, the block error rate count threshold, and the reflectance threshold are determined by the characteristics of the decoded signal (22) of the signal value decoding. 7. The method of claim 6, further comprising: determining the jitter threshold, the block error rate count threshold, and the reflectance threshold before the co-located external uncorrectable error occurs on the optical record carrier . 8. The method of claim 7, further comprising: storing the determined jitter threshold, the determined block error rate count threshold, and the determined reflectance threshold of an optical record carrier type on the drive In the memory; and when the optical record carrier type is inserted into the driver (1〇〇), the degradation threshold of the optical record carrier is determined using the storage threshold. The method of any one of claims 1 to 5, wherein the optical record carrier (10) is a DVD rewritable disc. 10. A method comprising: inserting the optical record carrier (1〇) into a driver (1〇〇) by loading the optical record carrier 126331 before unloading the optical record carrier from the driver (1) .doc 200842846 The full file system area on the body is displaced and replicated to a new area on the optical record carrier to extend the life of an optical record carrier (1〇). 11. The method of claim 10, wherein the optical record carrier (1) is the optical record carrier as used in any one of claims 1 to 5. 12. An optical drive (1A) comprising: a degradation parameter decision unit (24D) configured to be based on multiple slaves when the optical record carrier (10) is inserted into the driver (1) A parameter of the optical record carrier characteristic signal obtained by the parameter is read to determine a degradation parameter of an optical recording carrier (1 〇). The optical drive (100) of item 12, wherein the optical drive is a DVD drive or a BD actuator. The computer-readable computer can read the medium, and the computer program includes a code component for executing a method, the method comprising: inserting a carrier (1〇) into a drive ((10)) A degradation parameter of an optical record carrier (1〇) is determined based on the optical record carrier characteristic signal parameter values obtained from the multiple (four) parameters. 126331.doc
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US4789974A (en) * 1986-09-16 1988-12-06 Matsushita Electric Industrial Co., Ltd. Optical information recording/reproducing apparatus
US6614735B2 (en) * 2000-03-23 2003-09-02 Matsushita Electric Industrial Co., Ltd. Method and apparatus for determining optical recording power used for recording onto an optical disk
US6882611B2 (en) * 2002-06-04 2005-04-19 Media Tek Inc. Method and apparatus for defect detection in optical disc drives
JP2004022136A (en) * 2002-06-19 2004-01-22 Sony Corp Data recording and reproducing device and method, and digital camera
JPWO2005057568A1 (en) * 2003-12-10 2007-07-05 Tdk株式会社 Information recording medium evaluation method and information recording medium evaluation apparatus
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