1325591 九、發明說明： 【發明所屬之技術領域】 ^發明係、關於-種功率控制方法，特別是關於一種應 用於光碟片燒錄之功率控制方法。 【先前技術】 科技的進步與網路的便捷，造成網路資訊大量地渴入1325591 IX. Description of the invention: [Technical field to which the invention pertains] ^Inventive system, relating to a power control method, and more particularly to a power control method applied to optical disk burning. [Prior Art] The advancement of technology and the convenience of the Internet have caused a great thirst for network information.
個=電腦巾，也使得儲存資料社光學記錄舰成為隨手 可得之工具。目前用來長期且大量儲存資料之光學記錄媒 體主要係利用燒錄機來將資料進行燒錄，以將資料完整地 儲存在光學記錄媒體之中。The = computerized towel also makes the storage of the optical record ship a handy tool. The optical recording medium currently used for long-term storage of large amounts of data mainly uses a burning machine to burn data to completely store the data in an optical recording medium.
請參照圖1所示，其係為習知一光碟機燒錄-光碟片 之-流程圖。在寫人使用者資料至光碟片<前，首先會先 對光碟機之-讀寫頭進行功率曲線校正（p。· Cum Calibration)，亦即以不同的電壓驅動光碟機之一讀寫頭之 雷射’並量測在各電壓下讀寫頭之雷射的輪出功率，藉以 取得讀寫頭之雷射驅動電壓與輸出功率之一功率曲線，以 供後續功率控制之用（步驟S11八接著進行一最佳化功率 校正（Optimum P0wer Calibration，OPC)，藉以得到燒錄光 碟片之最佳校正功率（步驟S12)。 元风則二步驟之後’讀取頭依據最佳校正功率對3 片進行燒錄，藉以將使用者資料寫入至光碟片上 〇 阳），直到⑽已完整地寫人至光碟片上而完成燒錄 驟 S14) 〇 6 1325591 然而 佳功率麟財，祕光碟片的最 材質的影響而產生改變。例如，^境因素及光碟片本身 的讀取賴欲維持相 ^溫度越尚時，光碟機 靜功率。此外★ °的仏質，則需要輸出較大的燒 “、 光碟機線速度的改變也會影塑最佳婷钎功 率的變化；再者，因氺《敢佳k錄功 相門蓉㉟片内相的塗料均勻或厚度不 ===以及光碟片材料特性差異等影響，亦會造 成取佳燒錄功率的改變。Please refer to FIG. 1 , which is a flow chart of a conventional CD-ROM burning-disc film. Before writing the user data to the disc piece, the power curve correction (p. · Cum Calibration) of the CD-ROM head is first performed, that is, the head of the CD-ROM drive is driven by different voltages. The laser 'measures the wheel power of the head of the head under each voltage, thereby obtaining a power curve of the laser driving voltage and the output power of the head for subsequent power control (step S11) Then, an Optimum P0wer Calibration (OPC) is performed to obtain the optimal correction power of the burned optical disc (step S12). After the second step, the read head is based on the optimal corrected power pair. The film is burned, so that the user data is written to the CD on the CD, until (10) the person has been completely written to the CD and the burning process is completed. S14) 〇6 1325591 However, the best power is the most expensive. The influence of the material changes. For example, the environment factor and the reading of the optical disc itself are required to maintain the phase. When the temperature is higher, the electrostatic power of the optical disc drive. In addition, the 仏 quality of the ★ °, you need to output a larger burn", the change of the speed of the disc machine will also affect the change of the best Ting solder power; in addition, because of the "Geng Jia k recorded the power of the door 35 tablets The uniformity of the internal phase of the coating or the thickness of the === and the difference in the characteristics of the material of the optical disc, etc., will also result in a change in the burning power.
疋以’當光碟片燒錄過程中最佳燒錄功率產生變動 不對其麟功料以職紐正，齡造成光碟片 的燒錄品貝產生差異或資料無法完整儲存，更甚者，會造 成光碟片燒錄完成後，資料的讀取不易或讀取失敗。 【發明内容】 有鑑於上述課題，本發明提供一種依據時基誤差回授 之功率控制方法。 又 、本發明揭露一種依據時基誤差回授之功率控制方 法’這個方法包含以下步驟：對-光碟片進行最佳二功率 j正，以取得一基準燒錄功率。然後，將基準燒錄功率與 一測試值分別相加及相減而得一第一寫入功率及一第二 寫入功率。接著，以第一寫入功率來燒錄光碟片之一第一 片段，並讀取光碟片之第一片段，以偵測—第—時基誤差 訊號。之後，以第二寫入功率來燒錄光碟片之一第二片 段，並讀取光碟片之第二片段，以偵測一第二時基誤:訊 7 1325591 號。以及 比孕父第一時基誤差訊號與第 大小’來調整基準燒錄功率 本發明亦揭露-種依據時基誤差回授之功率控制方 法，這種方法包含以下步驟：對—光碟片進行最佳化功率 ^正’以取得—基準燒錄功率。然後，將基準燒錄功率與 一測試值分別相加及相減而得一第一寫入功率及一第二 =入功率。接著’以第1人料來燒錄柄片之複触 個第-時基誤差訊號。之後=第;測複數 p . .. .^ _ u 弟一寫入功率來燒錄光碟 複數個第一片段，並讀取光碟片之複數個第二片段， 以債測複數個第二時基誤差訊I分別平均㈣第一時 誤差訊號與這些第二時基誤差訊號而得-第—誤差平;； 值與H差平均值。以及’比較第—誤差平均值盘第 一疾差平均值之大小，來調整基準燒錄功率。 、 【實施方式】 請：照圖：所示，係為本發明較佳實施例之依據時基 二口《功率控制方法之—流程圖。功率控制 含以下步驟S21〜S28。 承匕 首先對光碟機之一讀寫頭之雷射進行功 不同的電壓驅動光碟機之—2 ^各電壓下讀寫頭之雷射的輪出功率，藉以取 2 由射驅動祕與輸出功率之—功㈣線，㈣ 制之用（步驟則。然後對一光碟片進行 = 8 1325591 正，以取得一基準燒錄功率（P)(步驟S22)。將基準燒錄功 率（P)與一測試值（ΛΡ)相加而得一第一寫入功率（P1)，將 基準燒錄功率（P )與測試值（△ P )相減而得一第二寫入功 率（P2)(步驟S23)，這些寫入功率的計算如以下式1與式 2所示： P1=P+AP (式 ρ2=ρ- Δ Ρ (式 2) 然後’以第一寫入功率（Ρ1)燒錄光碟片之一第一片 段，以將資料寫入至第一片段上，並讀取光碟片之第一片 段’以偵測一第一時基誤差（Jitter)訊號（η)(步驟S24)。 接著’以第二寫入功率（J>2)燒錄光碟片之一第二片段，以 將資料寫入至第二片段上，並讀取光碟片之第二片段，以 偵測一第二時基誤差訊號（J2)(步驟S25)。之後，比較第 一時基誤差訊號（Π)與第二時基誤差訊號（J2)之大小，以 調整基準燒錄功率（？）從p為步驟S26)。然後，判斷 全部的資料疋否已寫入至光碟片上（步驟S27)。當資料已 寫入兀畢時，則結束燒錄光碟片（步驟s2〇。反之，當仍 有資料待寫入至光碟片肖，則再重回至步驟S23，並將已 調整之基準燒錄功率（p〇取代原基準燒錄功率（P)代入式 1與式2而更新第一寫入功率（ρι)及第二寫入功率（p2)， 然後再依序執行後續的步驟，藉讀讀寫狀雷射以更新 後的第一寫入功率（P1)及第二寫入功率（P2)燒錄光碟片 9 其他片段’因而後續的資料得以寫入至光碟片上。 士 η在本實施例中，於上述步驟S26中，當第—時基誤差 率於第二時基誤差訊號時（n<J2)，則調增基準燒錄功 (p調t後之基準燒錄功率（p/)介於原始的基準燒錄功率 號與第^ 一寫入功率（P1)之間（P>P);當第二時基誤差訊 率 /弟時基誤差訊號時（J2<J 1) ’則調減基準燒錄功 (p調整後之基準燒錄功率（厂）介於原始的基準燒錄功率 與第二寫入功率(P2)之間（p/<p);當第一時基誤差訊 戚等於第-* 坪一時基誤差訊號時（J1=J2),則維持基準燒錄功率 而不調整（P\p)。 一 此外’在本實施例中，於步驟S24中，讀寫頭先以第 2入功率（Pl)燒錄光碟片之第一片段，然後讀寫頭再重 新讀取第一片段並同時偵測第一時基誤差訊號（J1);同樣 地，於步驟S25之中，讀寫頭先以第二寫入功率（P2)燒錄 光碟片之第二片段，然後讀寫頭再重新讀取第二片段並同 時偵測第二時基誤差訊號（J2)。 再者’讀寫頭燒錄光碟片與偵測時基誤差訊號亦可同 時進行，並非必定要先後分別進行。例如於步驟S24中， 當讀寫頭以第一寫入功率（P1)燒錄光碟片時，亦同時偵測 第二時基誤差訊號（J2);同樣地’於步驟S25之中，當讀 寫頭以第二寫入功率（P2)燒錄光碟片時’亦同時偵測第一 時基誤差訊號（n) ° 並請參照圖3所示，係為本發明另一較佳實施例之依 據時基誤差回授之功率控制方法之一流程圖。本實施例之 1325591 功率控制方法包含以下步驟S31〜S39。 首先對光碟機之-讀寫頭進行功率曲線校正（料 S31)。然後對-光碟片進行最佳化功率校正，以取得一其 準燒錄功率〇>X步驟S3小將基準燒錄功率⑺與一測言$ 值UP)—H寫人功率（Ρ1)，將基準燒錄功率 0>)與測試值UP)相減而得一第二寫入功率⑽(步驟 S33)’步驟S3卜S33係與前述實施例之步驟s2；i〜s23相同。 接著，以第-寫入功率（P1)燒錄光碟片之複數個第— 片段’以將資料寫入至這些第—片段上，並讀取光碟片之 逆些第->|段’則貞測這些第―片段分別對應之複數個第 一時基誤差訊號（J1)(㈣S34)。接著，u第二寫入功率 (P2)燒錄光碟片之複數個第二片段，以將㈣寫人至這些 第-片段上’並讀取光碟片之這些第二片段，則貞測這些 第二片段分別對應之複數個第二時基誤差訊號（12)(步驟 幻5)。若在光碟片i ’各第—片段與各第二片段係交錯的 ，接，讀寫頭則交替地燒錄第一月段與第二片段，藉以將 =料寫入至第片&與第二片段。另外，在步驟S34與S35 中，亦類似於前述實施例之步驟S24與奶，讀寫頭燒錄 光碟片與制時基誤差訊號可先後分別進行，亦可同時進 行。 一然後，分別平均這些第一時基誤差訊號（π)及這些第 時基誤差訊號（J2)而得一第一誤差平均值（JK)與一第 誤差平均值（J2 )(步驟S36)。之後，比較第一誤差平均 值（π )與第一誤差平均值（Jr)之大小，1 頂整基準燒錄 11 功率由P為ρχ步驟S37)。 之後’判斷全部的資料是否寫光 S38)，當資料 已寫先碟片上(步驟 S39U 寫畢時，則結束燒錄光碟片（步驟 之，當仍有資料待寫入至光碟片時，則再重回$ 錄功率⑻代Λ Γ么2:燒錄功率⑻取代原基準燒 二京入…式與式更新第—寫人功率（Ρ1)及第 1 ”'(Ρ2)’然後再依序執行後續的步驟 寫頭以更新後的第一寫入功率⑽及第二寫入：率： 燒錄光碟片的其他片段，因而後續的資料得以寫入至光碟 片上。 ’、 此外，在前述的二實施例中，本方法中所使用之光碟 片為可寫一次型光碟（CD_R)、可重覆讀寫型光碟 (CD-RW)、可寫—次型數位影音光碟（DVD R)、可重覆 讀寫型數位影音光碟（DVD-RW，DVD+RW)、以及動離 隨機記憶數位影音光碟（DVD-RAM)、高解晰度數位視訊 衫碟（HD-DVD)、藍光光碟（Biue_raydisc)。 綜上所述，因本發明之依據時基誤差回授之功率控制 方法係利用比較第一 /第二寫入功率於燒錄光碟片中之不 同片段所横測到之第一/第二時基誤差訊號的大小，來調整 於光碟片進行最佳化功率校正步驟中所得之基準燒錄功 率，藉以避免於光碟片燒錄過程中，因最佳燒錄功率產生 變動而造成光碟片的燒錄品質差、資料無法完整儲存、資 料讀取不易或讀取失敗之情況發生。 以上所述僅為舉例性’而非為限制性者。任何未脫離 12 1325591 本發明之精神與範疇，而對其進行之等效修改或變更，均 應包含於後附之申請專利範圍中。 【圖式簡單說明】 ·· 圖1為一種習知光碟機燒錄光碟片之一流程圖； 圖2為依據本發明較佳實施例之依據時基誤差回授之 功率控制方法之一流程圖；以及 圖3為依據本發明另一較佳實施例之依據時基誤差回 授之功率控制方法之一流程圖。 元件符號說明：疋When the best burning power in the process of burning the disc is changed, the difference is not the result of the work. After the disc is burned, the reading of the data is not easy or the reading fails. SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a power control method based on time base error feedback. Moreover, the present invention discloses a power control method based on time-base error feedback. This method includes the following steps: performing optimal two-power j-positivity on the optical disc to obtain a reference burning power. Then, the reference burn power and the test value are respectively added and subtracted to obtain a first write power and a second write power. Then, the first segment of the optical disc is burned at the first write power, and the first segment of the optical disc is read to detect the -first time base error signal. Then, the second segment of the optical disc is burned at the second write power, and the second segment of the optical disc is read to detect a second time base error: No. 7 1325591. And adjusting the reference burning power according to the first time base error signal and the first size of the pregnant parent. The invention also discloses a power control method based on the time base error feedback, the method comprising the following steps: performing the most on the optical disc Jiahua power ^ positive 'to obtain - benchmark burning power. Then, the reference burn power and the test value are respectively added and subtracted to obtain a first write power and a second = input power. Then, the first person is used to burn the handle to touch the first-time base error signal. After = first; test complex number p . . . . ^ _ u brother write power to burn a plurality of first fragments of the disc, and read a plurality of second fragments of the disc, to measure a plurality of second time base The error signal I averages (4) the first time error signal and the second time base error signal respectively - the first error is equal to; the value and the H difference average. And comparing the magnitude of the first difference value of the first error average to adjust the reference burning power. [Embodiment] Please, as shown in the figure: is based on the time base of the preferred embodiment of the present invention. The power control includes the following steps S21 to S28. Cheng Hao firstly drives the optical disc drive with different voltages for the laser of one of the CD players. 2 ^ The power of the laser of the head under each voltage, so as to take the 2 drive and the output power - (4) line, (4) system (steps. Then a disc is made = 8 1325591 positive to obtain a reference burning power (P) (step S22). The reference burning power (P) and one The test values (ΛΡ) are added to obtain a first write power (P1), and the reference burn power (P) is subtracted from the test value (ΔP) to obtain a second write power (P2) (step S23). The calculation of these write powers is as shown in the following Equations 1 and 2: P1 = P + AP (Expression ρ2 = ρ - Δ Ρ (Expression 2) Then 'Write the disc with the first write power (Ρ1) One of the first segments to write data onto the first segment and read the first segment of the optical disk to detect a first time base error (Jitter) signal (η) (step S24). Burning a second segment of the optical disc at a second write power (J>2) to write the data onto the second segment and reading the second segment of the optical disc to detect a a second time base error signal (J2) (step S25). Thereafter, the first time base error signal (Π) and the second time base error signal (J2) are compared to adjust the reference burning power (?) from p Step S26). Then, it is judged whether all the data has been written to the optical disc (step S27). When the data has been written, the burning of the optical disc is ended (step s2 〇. Conversely, when there is still data To be written to the optical disc, return to step S23 and update the first write power by substituting the adjusted reference burn power (p〇 instead of the original reference burn power (P) into Equations 1 and 2. (ρι) and the second write power (p2), and then performing the subsequent steps in sequence, reading the read-write laser to update the first write power (P1) and the second write power (P2) Burning the disc 9 other segments' thus the subsequent data is written onto the disc. In the present embodiment, in the above step S26, when the first-time base error rate is at the second time base error signal (n<;J2), then increase the benchmark burning work (p/) after the t-switched t-sampling power (p/) is between the original benchmark burning Between the power number and the first write power (P1) (P >P); when the second time base error rate / the time base error signal (J2 < J 1) 'reduction of the reference burning work ( The adjusted reference burning power (factory) is between the original reference burning power and the second writing power (P2) (p/<p); when the first time base error signal is equal to the -* When the base time error signal (J1=J2) is used, the reference burning power is maintained without adjustment (P\p). In addition, in the present embodiment, in step S24, the head is first input with the second input power. (Pl) burning the first segment of the optical disc, then reading and writing the header and re-reading the first segment and simultaneously detecting the first time base error signal (J1); likewise, in step S25, the read/write head is first The second segment of the optical disc is burned at the second write power (P2), and then the read/write head re-reads the second segment and simultaneously detects the second time base error signal (J2). Furthermore, the reading and writing of the optical disc and the detection of the time base error signal can be performed simultaneously, and it is not necessarily necessary to perform the separate operations. For example, in step S24, when the head is burning the optical disc at the first write power (P1), the second time base error signal (J2) is also detected; likewise, in step S25, when reading When the write head burns the optical disc at the second write power (P2), the first time base error signal (n) ° is also detected at the same time. Referring to FIG. 3, it is another preferred embodiment of the present invention. A flow chart of a power control method based on time base error feedback. The 1325591 power control method of this embodiment includes the following steps S31 to S39. First, the power curve correction is performed on the CD-ROM head (material S31). Then, the optimized power correction is performed on the optical disc to obtain a quasi-burning power 〇 > X step S3, the reference burning power (7) and a measurement value (UP) - H writing human power (Ρ 1), The reference burn-in power 0>) is subtracted from the test value UP) to obtain a second write power (10) (step S33) 'Step S3' S33 is the same as steps s2; i to s23 of the foregoing embodiment. Then, the plurality of first-segments of the optical disc are burned at the first-write power (P1) to write the data onto the first--segments, and the inverse of the --[section] of the optical disc is read. The plurality of first time base error signals (J1) corresponding to the first segments are measured ((4) S34). Then, the second second write power (P2) burns a plurality of second segments of the optical disc to write (4) to the first segment and read the second segments of the optical disc, and then speculates the second The segments respectively correspond to a plurality of second time base error signals (12) (step magic 5). If the first segment of the optical disc i' is interlaced with each of the second segments, the read/write head alternately burns the first month segment and the second segment, thereby writing the material to the slice & The second fragment. In addition, in steps S34 and S35, similar to the step S24 of the foregoing embodiment and the milk, the head-and-burning optical disc and the time-base error signal may be separately performed, or may be performed simultaneously. Then, the first time base error signal (π) and the time base error signals (J2) are respectively averaged to obtain a first error average value (JK) and a first error average value (J2) (step S36). Thereafter, the magnitude of the first error average (π) and the first error average (Jr) are compared, and 1 is the top reference burn 11 power from P to ρ (step S37). After that, 'determine whether all the data is written to light S38), when the data has been written on the first disc (when step S39U is completed, the burning of the optical disc is finished (step, when there is still data to be written to the optical disc, then Then return to the record power (8) on behalf of the Γ 2 2: burn power (8) instead of the original benchmark burnt two into the form and update the first - write power (Ρ 1) and 1 "' (Ρ 2) ' and then in order Performing the subsequent steps to write the header to the updated first write power (10) and the second write rate: burning other segments of the optical disc, so that subsequent data can be written onto the optical disc. ', In addition, in the foregoing In the second embodiment, the optical disc used in the method is a write-once optical disc (CD_R), a re-readable optical disc (CD-RW), a writable-sub-digital audio-visual disc (DVD R), Repeated reading and writing digital audio and video discs (DVD-RW, DVD+RW), as well as moving random random digital video discs (DVD-RAM), high resolution digital video discs (HD-DVD), Blu-ray disc (Biue_raydisc). In summary, the power control method based on the time base error feedback of the present invention is compared The first/second write power is used to adjust the size of the first/second time base error signal measured by different segments in the burned optical disc to adjust the reference burned in the optimized power correction step of the optical disc. The recording power can be used to avoid the situation that the quality of the optical disc is poorly burned, the data cannot be stored completely, the data is not easily read, or the reading fails due to the change of the optimal burning power. The description is intended to be illustrative only and not a limitation of the scope of the invention, and the equivalents and modifications of the invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a conventional optical disc drive recording optical disc; FIG. 2 is a flow chart of a power control method according to a time base error feedback according to a preferred embodiment of the present invention; 3 is a flow chart of a power control method according to time base error feedback according to another preferred embodiment of the present invention.
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