1363342 100年1Z月13日修正替換頁 發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種資訊記錄裝置，尤其涉及一種資訊記錄 裝置的最佳功率校正方法》 【先前技術】 [0002] 近些年來’可記錄型光碟（DVD-R/Rff、DVD + R/RW或 CD+R/RW)等資訊記錄介質作爲記錄資訊的載體，由於其 存儲容量大及便搖性等特點而得到越來越廣泛的使用。 用來s己錄h訊至s己錄介質的資訊記錄裝置，由於可提供 使用者自主燒錄資訊而受到使用者的歡迎。相應的資訊 記錄技術也得到了迅速的發展。通常，資訊記錄裝置採 用光學讀取單元（optical pick-up unit，〇pu)發 出一雷射光束會聚至資訊記錄介質上，當輸出的雷射功 率達到一給定值時，資訊被記錄在資訊記錄介質上。為 了為實際燒錄資料過程提供一最佳燒錄功率在執行實 際燒錄過程之前，通常會執行一最佳功率校纟（〇ptimal power calibration，0PC)過程。在執行〇pc過程時 ’光學讀取單元發出具有不同功率值的雷射光束燒錄校 正資料於光碟的功率校正區域（p〇wer caHbl_atic)n area，PCA) ’然後根據從光碟反射回來的反射光束來 判斷該不同功率值中得哪一功率值為最佳功率值。 [0003] 由於PCA通常位於光碟内圈的導入區，其所在軌道的半徑 小於外圈軌道，在執行.過程時採用的燒錄速度會受到 限制’必須以相對較低的倍數進行。在執行外圈軌道的 燒錄時，其燒錄倍數相對較高，而通常燒騎數越高所 095130418 表單編號A0101 第3頁/共30頁 1003460506-0 1363342 100年12另13日梭正替換頁 需的燒錄功率越高，因此進行高倍數燒錄時所需的燒錄 功率不同於執行0PC過程時得到的最佳功率。傳統的調整 方式是在PCA過程中獲得的最佳功率值的基礎上進行推算 求得高倍數燒錄時所需的燒錄功率。但是該等推算而得 _ 的最佳功率值常常存在誤差。 【發明内容】 [0004] 有鑒於此，實有必要提供一種最佳功率校正方法。 [0005] 此外，提供一種使用最佳功率校正方法的資訊記錄裝置 〇 [0006] 一種最佳功率校正方法，包括如下步驟： [0007] 在位於光碟内圈區域的第一校正區以第一燒錄倍數執行 第一最佳功率校正過程得到一對應該第一燒錄倍數的第 一最佳燒錄功率； [0008] 在位於光碟外圈區域的第二校正區以第二燒錄倍數執行 第二最佳功率校正過程，得到一對應該第二燒錄倍數的 第二最佳燒錄功率，該第二燒錄倍數高於該第一燒錄倍 數; · [0009] 在該第二校正區以第三燒錄倍數執行第二最佳功率校正 過程，得到一對應該第三燒錄倍數的第三最佳燒錄功率 ，該第三燒錄倍數高於該第二燒錄倍數； [0010] 在實際燒錄資料至光碟時決定當前燒錄倍數； [0011] 判斷該當前燒錄倍數位於該第一燒錄倍數與該第二燒錄 倍數之間還是位於該第二燒錄倍數與該第三燒錄倍數之 1003460506-0 095130418 表單编號A0101 第4頁/共30頁 1363342 100年.12月13日按正替换頁 間； [0012] 若該當前繞錄倍數位於該第一燒錄倍數與該第二燒錄倍 數之間’根據該第-最佳燒錄功率與該第二最佳燒錄功 率線性内插得到當前燒錄功率； [0013] 若該當前燒錄倍數位於該第二燒錄倍數與該第三燒錄倍 數之間’根據該第二最佳燒錄功率與該第三最佳燒錄功 率線性内插得到當前燒錄功率。 [0014] 訊記錄裝置’包括—光學讀取單it…類比訊號 • 處理器’―數位訊號處理器及一㈣。該光學讀取單元 用於發出雷射光束至—柄以記錄資訊至該光碟並接 收k4光碟反射回來的反射光束產生電訊號輸出至該類 比訊號處理器。該類比訊號處理器用於根據該電訊號生 成射頻訊料心該數位簡處⑽。職位訊號處理 器用於將該射頻訊號轉換為數位訊號。該㈣與該數位 • 095130418 §號<理器相連’用於輸出指令經該數位訊號處理器轉 換為舰錢後㈣m料讀取較财位於光碟内圈 ^域之第-校正區以第—燒錄倍數，在位於光碟外圈區 域之第—校正11以第二燒錄倍數輸出雷射光束執行最佳 一#ϋ㈣’在—二校正區以第三燒錄倍數執行第 最佳力率校正過程，得到一對應該第三燒錄倍數的第 三最佳燒錄功率，該第三燒錄倍數高於該第二燒錄倍數 在實際燒錄資料至先碟時決定當前燒錄倍數并判斷該 田前燒錄倍數位於該第—燒錄倍數與該第二燒錄倍數之 間還f該第二燒錄倍數與該第三燒錄倍數之間，若 表二繞錄倍數位於該第一燒錄倍數與該第二燒錄倍數 表單編號A0101 » , _ ^ 30 1 1003460506-0 1363342 100年12月13日按正替換頁 之間，則根據該第一最佳燒錄功率與該第二最佳燒錄功 率線性内插得到當前燒錄功率；若該當前燒錄倍數位於 該第二燒錄倍數與該第三燒錄倍數之間，根據該第二最 佳燒錄功率與該第三最佳燒錄功率線性内插得到當前燒 錄功率^ [0015] 上述最佳功率校正方法與所述資訊記錄裝置，在光碟外 圏區域執行高倍速功率校正，解決了傳統最佳功率校正 方法之對應高倍速的最佳功率預測不準確的問題。 【實施方式】 [0016] 請參閱圖1，本發明的第一實施方式資訊記錄裝置1用於 燒錄資料至光碟18，其包括一光學讀取頭（optical pick-up unit, 0PU) 10，一類比訊號處理器（ ana- log signal processor, ASP) 12 ’ 一與ASP 12相連 之數位訊號處理器（digital signal processor, DSP) 14 ’及一與DSP相連之韌體16 » [0017] 請一併參閱圖2所示，為OPU 10的内部光路示意圖。〇pu 10 包括一雷射二極體（laser diode, LD) 1〇〇，一光 電二極體（photo diode, PD) 1〇2，及一前置監測二 極體（front monitor diode, FMD) 104。LD 100發 出一雷射光束並經分光鏡（未標示）及物鏡（未標示） 會聚至光碟18上以記錄資料至光碟18上或再現光碟18上 存儲之資料。光碟18反射入射光束，該反射光束經物鏡 及分光鏡後照射至PD102上。PD 1〇2用於檢測從光碟18 反射回來的光束並將其轉換為電訊號。為便於描述，LD 100發出的雷射光束下簡稱為發射光束，從光碟18反射回 095130418 1003460506-0 表單编號A0I01 第6頁/共30頁 13633421363342 100 years 1Z 13th revised replacement page invention description: [Technical field of invention] [0001] The present invention relates to an information recording apparatus, and more particularly to an optimal power correction method for an information recording apparatus [Prior Art] [0002] In recent years, information recording media such as recordable optical discs (DVD-R/Rff, DVD+R/RW or CD+R/RW) have been used as carriers for recording information due to their large storage capacity and ease of shaking. Get more and more widely used. The information recording device used for recording the information to the s recording medium is popular among users because it can provide users with self-burning information. The corresponding information recording technology has also been rapidly developed. Generally, the information recording device uses an optical pick-up unit (〇pu) to emit a laser beam onto the information recording medium. When the output laser power reaches a given value, the information is recorded in the information. On the recording medium. In order to provide an optimal programming power for the actual programming process, an optimal power calibration (0PC) process is usually performed before the actual programming process is performed. When performing the 〇pc process, the optical reading unit emits laser beam correction data having different power values in the power correction area of the optical disc (p〇wer caHbl_atic) n area, PCA) 'and then based on the reflection reflected from the optical disc The beam determines which of the different power values is the best power value. [0003] Since the PCA is usually located in the lead-in area of the inner circumference of the disc, the radius of the track is smaller than that of the outer ring track, and the burning speed used in the execution process is limited' must be performed at a relatively low multiple. When performing the programming of the outer ring track, the burning ratio is relatively high, and the higher the number of burning rides is, the higher the number is 095130418. Form No. A0101 Page 3/Total 30 pages 1003460506-0 1363342 100 years 12 other 13th shuttle is being replaced The higher the burning power required for the page, the higher the burning power required for high-multiple programming is different from the optimum power obtained when the 0PC process is performed. The traditional adjustment method is based on the optimal power value obtained in the PCA process to calculate the burning power required for high-multiple programming. However, there are often errors in the optimal power values of these estimates. SUMMARY OF THE INVENTION [0004] In view of this, it is necessary to provide an optimal power correction method. Further, there is provided an information recording apparatus using an optimum power correction method. [0006] An optimum power correction method includes the following steps: [0007] The first correction area located in the inner circumference of the optical disc is first burned Performing the first best power correction process to obtain a first best burn power that should be the first burn-through multiple; [0008] performing the second burn-in multiple in the second correction zone located in the outer circumference of the optical disc a second best power correction process, obtaining a second best programming power that should be a second programming multiple, the second programming multiple being higher than the first programming multiple; [0009] in the second correction area Performing a second optimal power correction process at a third burn-through multiple to obtain a third optimum burn-in power that should be a third burn-through multiple, the third burn-through multiple being higher than the second burn-through multiple; [0010 [0011] determining whether the current programming frequency is between the first programming multiple and the second programming multiple or the second programming multiple The third burning multiple is 1003460506-0 095130418 Form No. A0101 Page 4 / Total 30 Page 1363342 100 years. December 13th, the page is replaced by the positive; [0012] If the current recording multiple is located in the first burning multiple and the second burning multiple Inter-sequentially interpolating according to the first best burning power and the second optimal burning power to obtain the current burning power; [0013] if the current programming multiple is located in the second burning multiple and the third burning The current recording power is obtained by linearly interpolating according to the second best programming power and the third best programming power. [0014] The recording device 'includes an optical reading unit i... analog signal • a processor' - a digital signal processor and one (four). The optical reading unit is configured to emit a laser beam to the handle to record information to the optical disc and receive the reflected light beam reflected from the k4 optical disc to generate an electrical signal output to the analog signal processor. The analog signal processor is configured to generate the digital signal (10) based on the electrical signal. The job signal processor is used to convert the RF signal into a digital signal. The (4) is connected to the digits • 095130418 § No. <lt; the output command is converted into the ship by the digital signal processor (4) m material reading is located in the inner area of the optical disc - the correction area is - Burning multiple, in the first area of the disc outer area - correction 11 to output the laser beam at the second burning multiple to perform the best one #四(四)' in the -two correction area to perform the third best recording rate correction a process, obtaining a third best burning power that should be the third burning multiple, the third burning multiple is higher than the second burning multiple to determine the current burning multiple and actually determine the actual burning data to the first disc The field burning multiple is located between the first-burning multiple and the second burning multiple, and between the second burning multiple and the third burning multiple, if the table two recording multiple is located in the first The burning multiple and the second burning multiple form number A0101 », _ ^ 30 1 1003460506-0 1363342 between December 13 and 100, according to the first best burning power and the second Linear interpolation of the best programming power to obtain the current burning power; if the current burning The multiple is located between the second programming multiple and the third programming multiple, and linearly interpolates according to the second optimal programming power and the third optimal programming power to obtain the current burning power. [0015] The good power correction method and the information recording device perform high-speed power correction in the outer region of the optical disc, and solve the problem that the optimal power prediction method of the conventional optimal power correction method is inaccurate. [Embodiment] Referring to FIG. 1, an information recording apparatus 1 according to a first embodiment of the present invention is used for burning data to an optical disc 18, which includes an optical pick-up unit (POP) 10, An analog signal processor (ASP) 12' is a digital signal processor (DSP) 14' connected to the ASP 12 and a firmware 16 connected to the DSP. [0017] Please Referring to FIG. 2, it is a schematic diagram of the internal optical path of the OPU 10. 〇pu 10 includes a laser diode (LD) 1〇〇, a photodiode (PD) 1〇2, and a front monitor diode (FMD). 104. The LD 100 emits a laser beam and condenses it onto the optical disk 18 via a beam splitter (not shown) and an objective lens (not shown) to record data onto the optical disk 18 or to reproduce the data stored on the optical disk 18. The optical disk 18 reflects the incident light beam, and the reflected light beam is irradiated onto the PD 102 through the objective lens and the beam splitter. PD 1〇2 is used to detect the light beam reflected from the optical disk 18 and convert it into an electrical signal. For convenience of description, the laser beam emitted by the LD 100 is simply referred to as the emitted light beam, which is reflected back from the optical disk 18. 095130418 1003460506-0 Form No. A0I01 Page 6 of 30 1363342
100年12月13日接正替換頁 來的光束下簡稱為反射光束。PD 102可為四象限，或八 象限。以四象限PD為例，PD 102產生的電訊號包括a，β ，C，D四組訊號。該四組訊號用來作為資訊記錄裝置1運 作時的控制訊號。例如：A，B兩組訊號的和值減去c，D 兩組訊號的和值的差值用作傾角控制訊號來修正光碟18 相對於發射光束的傾角；A，C兩組訊號的和值減去b，d 兩組訊號的和值的差值用作聚焦控制訊號來修正發射光 束投射在光碟18上的位置誤差。FMD 104用於監測LD 10 0發出的雷射光束功率並據此產生一FMD訊號發送至 ASP 12。ASP 12根據該FMD訊號調整LD 100發出的雷射 光束功率》The light beam from the replacement page on December 13, 100 is referred to as the reflected beam. The PD 102 can be four quadrants, or eight quadrants. Taking the four-quadrant PD as an example, the electrical signals generated by the PD 102 include four groups of signals a, β, C, and D. The four sets of signals are used as control signals when the information recording apparatus 1 is operated. For example, the sum of the signals of the two groups A and B minus the sum of the sum of the signals of the two groups of c and D is used as the tilt control signal to correct the tilt angle of the optical disc 18 relative to the emitted light beam; the sum of the two groups of signals A and C Subtracting the difference between the sum values of the two sets of signals b and d is used as a focus control signal to correct the position error of the emitted light beam projected on the optical disk 18. The FMD 104 is used to monitor the laser beam power from the LD 10 0 and generate an FMD signal to the ASP 12 accordingly. ASP 12 adjusts the laser beam power emitted by LD 100 according to the FMD signal.
[0018] ASP 12 包括一射頻（radio frequency, RF )電路 120 及一自動功率控制（automatic power control，APC )電路122。其中RF電路120與PD 102相連，用於接收 PD 102產生的電訊號並據此產生rf訊號傳送至DSP 14。 RF訊號為上述a，B，C，D四組訊號的和值。APC電路122 用於自動根據FMD 104輸出的FMD訊號自動調整LD 1〇〇 發出的雷射光束的功率。 [0019] DSP 14用於控制ASP 12調整發射光束的功率，其包括一 類比/數位（analog-to-digital，A/D)轉換器 140及 一數位/類比模（digital-to-analog，D/A)轉換器 142。A/D轉換器140與RF電路120相連用於將RF訊號轉 換為第一數位訊號傳送至韌體16。D/A轉換器142用於從 勒體16接收第二數位訊號並將該第二數位訊號轉換為類 比訊號傳送至ASP 12,以控制ASP 12調整雷射光束的功 095130418 表單编號A0101 第7頁/共30頁 1003460506-0 1363342 100年.12月13日按正替换頁 〇 率 [0020] 勤體16用於控制LD 100發出最佳功率的雷射光束，其包 括一沒量測單元160，一最佳功率校正（0ptimai power calibration, OPC)單元 162，及一高倍數校 正單元164。汐量測單元160用於計算沒的值。其中石為 一種對稱性參數，用來評價某一特定功率值是否為最佳 功率值。RF訊號的波形包括一高振幅A1與一低振.幅A2。 石即為RF訊號波形的對稱性參數，其滿足公式：沒 = (A1-A2)/(A1+A2)。不同的光碟其最佳召值亦可能不 相同，每一光碟的最佳沒值均記錄在光碟中。最佳的石 # 值對應的功率為最佳功率。 [0〇21] 0PC單元162用於以相對較低的燒錄倍數執行一第一〇pc 過程，尚倍數校正單元164用於以相對較高的燒錄倍數執 行一第二0PC過程。從而，〇PC單元162輸出適用於較低 的燒錄倍數的最佳功率值，而高倍數校正單元輸出適用 於較高燒錄倍數的最佳功率值。 [0022][0018] The ASP 12 includes a radio frequency (RF) circuit 120 and an automatic power control (APC) circuit 122. The RF circuit 120 is connected to the PD 102 for receiving the electrical signal generated by the PD 102 and transmitting the rf signal to the DSP 14 accordingly. The RF signal is the sum of the four groups of signals a, B, C, and D above. The APC circuit 122 is for automatically adjusting the power of the laser beam emitted by the LD 1 根据 based on the FMD signal output from the FMD 104. [0019] The DSP 14 is configured to control the ASP 12 to adjust the power of the transmitted beam, which includes an analog-to-digital (A/D) converter 140 and a digital-to-analog (D). /A) Converter 142. The A/D converter 140 is coupled to the RF circuit 120 for converting the RF signal to the first digital signal for transmission to the firmware 16. The D/A converter 142 is configured to receive the second digital signal from the body 16 and convert the second digital signal into an analog signal to be transmitted to the ASP 12 to control the function of the ASP 12 to adjust the laser beam. 095130418 Form No. A0101 No. 7 Page / Total 30 pages 1003460506-0 1363342 100 years. December 13th according to the positive replacement page rate [0020] The body 16 is used to control the LD 100 to emit the best power of the laser beam, which includes a measurement unit 160 An optimum power correction (OPC) unit 162 and a high multiple correction unit 164. The measurement unit 160 is used to calculate a value that is not. The stone is a symmetry parameter used to evaluate whether a particular power value is the best power value. The waveform of the RF signal includes a high amplitude A1 and a low vibration amplitude A2. The stone is the symmetry parameter of the RF signal waveform, which satisfies the formula: no = (A1-A2) / (A1 + A2). The optimal recall of different discs may also be different, and the best value of each disc is recorded on the disc. The best stone # value corresponds to the power of the best power. [0〇21] The 0PC unit 162 is for performing a first 〇pc process at a relatively low burn-through multiple, and the doubling correction unit 164 is for performing a second OPC process at a relatively high burn-through multiple. Thus, the 〇PC unit 162 outputs an optimum power value suitable for a lower burn-through multiple, and the high-magnification correction unit outputs an optimum power value suitable for a higher burn-through multiple. [0022]
通常，第一0PC過程在光碟的内圈執行，而第二〇pc過程 在光碟的外圈執行》以下分別以兩種不同的光碟為例說 明光碟上用來執行第一及第二〇Pc過程的區域。請一併參 閱圖3與圖4所示，為兩種不同光碟的結構示意圖。圖3為 DVD-R光碟18A的結構示意圖，而圖4為])〇+1?光碟l8B的 結構示意圖。光碟18A包括-燒錄訊息區域，—導入區， 一可記錄資料區及-導出區。其中燒錄訊息區域用於存 儲光碟燒錄相關訊息，其包括—功率校正區域 095130418 calibration area，PCA)與一記錄管理區域 表單编號 A0101 % 8 I/# go f re- 1003460506-0 1100年.12月138修正 /ing management area，rma)等。其中該功率校 區域包括用於執行第-0PC過程的第-PCA 30與-碟廢商使用之PCA »可記錄資料區用於執行實際燒錄過 +時承載燒錄資料之區域。導出區用於存儲指示可記錄 資料區、”束的特定代碼。通常，沒有特別的規定要求該 寺疋代碼寫滿整個導出區^因此在本案實施例中，將該 導出區t的特域碼縮短—特定長度，從而在導出區得 到—空白區域用於執行第二_過程。該用來執行第二 〇pc過程的空白區域被稱為第二ραGenerally, the first 0PC process is performed on the inner circumference of the optical disc, and the second 〇pc process is performed on the outer circumference of the optical disc. The following describes two different optical discs as an example for explaining the first and second 〇Pc processes on the optical disc. Area. Please refer to FIG. 3 and FIG. 4 together for a schematic diagram of the structure of two different optical discs. Fig. 3 is a schematic view showing the structure of the DVD-R disc 18A, and Fig. 4 is a schematic view showing the structure of the 〇+1? The optical disk 18A includes a burn-in message area, a lead-in area, a recordable data area, and a lead-out area. The burning message area is used for storing the information related to the burning of the optical disc, which includes a power calibration area 095130418 calibration area (PCA) and a recording management area form number A0101 % 8 I/# go f re- 1003460506-0 1100. December 138 correction / ing management area, rma) and so on. The power calibration area includes a PCA for the execution of the -PCA 30 and a PCA for the disc waste merchant. The recordable data area is used to execute the area where the actual burned data is loaded. The lead-out area is used to store a specific code indicating the "recordable data area," bundle. Generally, there is no special requirement that the temple code fills the entire lead-out area. Therefore, in the present embodiment, the special area code of the lead-out area t is used. Shortened—a specific length to be obtained in the lead-out area—the blank area is used to perform the second _ process. The blank area used to perform the second 〇pc process is called the second ρα
_]柄_包括一内圈驅動區域（inner 靠）， 導入區’一可s己錄資料區，一導出區及一外圈驅動 區域（outer drive area)。其中内圈驅動區域包括 —用於執行第-0PC過程的第-PCA區域4〇與一記錄執行 第一0PC過程的次數的計數區。該外圏驅動區域包括一用 於執行第二opc過程的第二PCA區域42與一記錄執行第二 0PC過程的次數的計數區。 [0024]請參閲圖5所示，本發明較佳實施方式之最佳功率校正方 法在執厅實際燒錄前的校正流程圖。首先，步驟，在 第一 PCA區域30/40執行第一 〇pc過程。在該第一 〇pc過程 中，LD 100被控制發出具有不同功率值的雷射光束至光 碟18上，從而，校正資料以第一燒錄倍數被記錄在第一 PCA 30/40。從光碟18返回的反射光束被pd 1〇2接收轉 換為電訊號傳送至RF電路120 » RF電路120根據該電訊號 產生RF訊號傳送至DSP 14的A/D轉換器140轉換為第一數 位訊號。卢量測單元160根據該第一數位訊號計算出0值 095130418 表單編號A0101 第9頁/共30頁 1003460506-0 1363342 [0025] [0026] [0027] [0028] |Ϊ00年12月13日梭正替^ °對應每一功率值，召量測單元1 6 〇計算出一沒值。通過 比較各功率值對應的冷值來找出第一最佳功率值。第— 燒錄倍數可為4倍數，亦可為2倍數。資訊記錄裝置1執行 燒錄時的燒錄速度為燒錄倍數與資訊記錄行業所規定的 基礎燒錄速度的乘積》 其次，步驟52，基於第一OPC過程所得到的第一最佳功率 值汁具執行實際燒錄時的燒錄功率值。例如，若第一燒 錄倍數為4倍數，執行實際燒錄時的燒錄倍數為8倍數， 則執行實際燒錄時的功率值為第一最佳功率值與實際燒 錄倍數相對第一燒錄倍數的比率值（即8χ/4χ )的乘積β _ 接著，步驟54，根據步驟52計算得到的燒錄功率值設置 燒錄功率與燒錄策略表。每一資訊記錄裝置都會預存有 燒錄策略表。當執行實際燒錄時，資訊記錄裝置〗會先從 燒錄策略表中讀取適當的燒錄功率作為當前燒錄功率。 接著，步驟56，根據在第一OPC過程中得到的τε訊號及 FE訊號修正光碟18相對雷射光束的傾角及聚焦誤差。 然後’步驟58，在第二PCA 32/42執行第二0PC過程。 續 類似於第一OPC過程，LD 100在APC電路122的控制下 發出具有不同功率值的雷射光束至光碟18上，從而校正 資料以第二燒錄倍數被記錄在第二PCA 32/42。對應各 功率值的冷值在万量測單元162計算得到後，比較各功率 值對應的石值找到對應該第二燒錄倍數的第二最佳功率 值。之後，重複一次第二OPC過程’以第三燒錄倍數燒錄 校正資料在第二PCA 32/42,得到對應該第三燒錄倍數 095130418 表單编號A0101 第10頁/共30頁 1003460506-0 1363342 100年.12月13 B修正雜頁 的第三最佳功率值。可選地，第二燒錄倍數可為8倍數， 第三燒錄倍數可為16倍數。該第二燒錄倍數與第三燒錄 倍數可根據資訊記錄裝置1的可達到的最高燒錄倍數進行 調整。第三燒錄倍數可略小於最高燒錄倍數，而第二燒 錄倍數可為第一燒錄倍數與第三燒錄倍數的中間值。 [0029] 最後，步驟510，根據步驟58中得到的第二最佳功率值與 第三最佳功率值調整燒錄策略表。 [0030] 請參閱圖6所示，為本發明較佳實施方式之最佳功率校正 方法在執行實際燒錄時的校正流程圖。首先，步雜60， 對應光碟18上某一綠定的資料記錄位置，破定一合適的 燒錄倍數。通常資訊記錄裝置所採用的燒錄模式包括等 線速度（constant linear velocity, CLV)模式與 等角速度（constant angular velocity, CAV)模式 。在CLV模式中’資訊記錄的速度與資料記錄點在光碟18 上的相對位置無關，始终保持一恆定的速度。而在CAV模 式中，光碟18的轉速是恆定的，資訊記錄的速度隨資料 記錄點相對光碟18中心的距離等比變化。在靠近光碟18 中心的區域，資訊記錄的速度較低，而離光碟18中心越 遠的區域，資訊記錄的速度越高。由於靠近光碟18中心 區域的軌道半控相對較小，資訊記錄的速度相對受限， 故CAV模式下記錄同量的資訊在同一光碟上所花的時間相 對CLV模式較少。因此，CAV模式更為廣泛第應用在當今 資訊。己錄裝置中。在本實施例中，以CAV模式為例進行說 月月併參閱圖7所示，在CAV模式下的記錄速度與資 料己錄點相對光碟18中心的距離成正比。假定在導入區 095130418 表單编號AOlOi 第11頁/共30頁 1003460506-0 1363342 [0031] [0032] [0033] [0034] [0035] 100年.12月13日梭正替换Ί 的燒錄倍數（第一燒錄倍數）作為起始燒錄速度，則在 某一特定點的燒錄倍數可通過線性内插的方式求得。 其次’步驟62 ’將光碟18按照記錄速度被劃分為兩個記 錄區。第一區域為從導入區至對應於第二燒錄倍數的資 料記錄位置，第二區域為從對應於第二燒錄倍數的資料 記錄位置至對應於第三燒錄倍數的資料記錄位置。 接著，步驟64，根據步驟6〇中計算得到的燒錄倍數判斷 當前資料記錄點位於哪一資料記錄區。 然後，步驟66，若當前資料記錄點位於第一資料記錄區 ，則當則燒錄功率Ps可通過如下線性内插公式求得： Ps = (〇P2-OPl)(Rs-Rl)/(R2_R1)+〇p卜其中 〇ρι 為第 一最佳功率值，OP2為第二最佳功率值，R1為第一燒錄倍 數’ R2為第二燒錄倍數，Rs為當前資料記錄點的燒錄倍 數。 最後，步驟68，若當前資料記錄點位於第二資料記錄區 ，則當前燒錄功率Pt可通過如下線性内插公式求得： Pt = (OP3-OP2)(Rt-R2)/(R3-R2)+OP2，其中〇P2為第 癱 二最佳功率值，OP3為第三最佳功率值，R2為第二燒錄倍 數，R3為第三燒錄倍數，Rt為當前資料記錄點的燒錄倍 數。 上述實施例中，不僅僅在位於光碟内圈區域的第一pCA 30/40執行低倍數0PC過程，還在位於光碟外圏區域的第 二PCA 32/42執行高倍數OPC過程，從而提高高倍數下最 佳功率預測的準確性》 095130418 表單編號A0101 第12頁/共30頁 1003460506-0 [0036] 100年.12月13日修正_頁| 請參閲圖8與圖9所示，分&丨或一， ----1 刀乃i為南倍速燒錄時採用傳統最 # 佳功率校正方法與採用上述最佳功率校正方法下的㈣ 線圖。橫減代表轉記錄點所在的物理祕數，物理 扇區數越大，表Μ料記錄點所在的位置離光的中 心越遠。縱座標代表㈣值，其中線細代表最佳錄 。通常如果對燒錄功率預測越準確1相對最佳功率值 的波動幅度越小，資料燒錄越穩定。报明顯，圖9中沒值 波動幅度城圖〇小，因錢明_本發明最佳功率校 正方法可提间高倍數燒錄時功率的預測準雜，減小 石值波動的幅度，提高燒錄穩定性。 剛請參M1G«U所示，分㈣傳統最佳功率校正方法 與採用上述最佳功率校正方法下的燒錄錯誤 (parity inner error, PIE) φ線圖。piEs燒錄過程中出現的 錯誤數量’通常錯誤越少表示資料越正確。橫座標代表 資料記錄點所在的物理扇區數，縱座標代表piE的值。很 月顯圖11中PIE的值相較圖1〇中小很多，因此說明採用 本發月最佳功率校正方法，可提高資料記錄正破性。 0)038]在上述實施例中，執行第.二〇pc過程的次數可不僅僅限於 還可以夕於或少於2次，如1次，3次，4次等。超過2 人時，在第二0PC過程中得到的最佳功率值也不限於2個 相應的光碟18的記錄區數量也不限於2個。 [0039] 、’τ、上所述，本發明符合發明專利要件，爰依法提出專利 申明。惟，以上所述者僅為本發明之較佳實施例，舉凡 亥'〜本案技藝之人士，在援依本案創作精神所作之等效 095130418 修飾或變化，皆應包含於以下之申請專利範圍内。 表單編號A0101 第13頁/共30頁 1003460506-0 1363342 100年12月13日梭正替換頁 [0040] [0041] [0042] [0043] [0044] [0045] [0046] [0047] [0048] [0049] [0050] [0051] [0052] [0053] 【圖式簡單說明】 圖1係本發明的較佳實施方式資訊記錄裝置的方框圖，該 資訊記錄裝置包括一光學讀取單元。 圖2係圖1中光學讀取單元内部光路圖。 圖3係DVD-R光碟結構示意圖。 圖4係DVD + R光碟結構示意圖。 圖5係本發明的較佳實施方式最佳功率校正方法在執行實 際燒錄的校正流程圖。 圖6係本發明的較佳實施方式最佳功率校正方法在執行實 際燒錄時的校正流程圖。 圖7係圖6中所示的流程中計算在光碟上某一特定位置燒 錄資料所需的最佳燒錄功率的示意圖。 圖8係傳統最佳功率校正方法下万的波動曲線圖。 圖9係採用本發明最佳功率校正方法下石的波動曲線圖。 圖10係傳統最佳功率校正方法下資料錯誤數量的波動曲 線圖。 圖11係採用本發明最佳功率校正方法下資料錯誤數量的 波動曲線圖。 【主要元件符號說明】 資訊記錄裝置：1 A/D轉換器：140 OPU ： 10 095130418 表單编號A0101 第14頁/共30頁 1003460506-0 1363342 100年.12月13日核正替換頁 [0054] D/A轉換器：142 [0055] LD ： 100 [0056] 韌體：16 [0057] PD ： 102 [0058] /8量測單元：16 0 [0059] FMD ： 104 [0060] 0PC單元：162 Φ [0061] ASP ： 12 [0062] 高倍速校正單元：164 [0063] RF電路：120 [0064] 光碟：18 [0065] APC 電路：120 [0066] 第一PCA : 30，40 Φ [0067] DSP ： 14 [0068] 第二PCA : 32，42 [0069] 燒錄前流程步驟：50〜510 [0070] 燒錄中流程步驟：60〜68 [0071] 最佳值：80 095130418 表單編號A0101 第15頁/共30頁 1003460506-0 .The _] shank _ includes an inner ring driving area (inner), the lead-in area _ a recorded data area, a lead-out area and an outer drive area. The inner ring driving area includes - a - PCA area 4 for performing the -0 PC process and a counting area for recording the number of times the first 0PC process is performed. The outer drive driving area includes a second PCA area 42 for performing the second opc process and a count area for recording the number of times the second 0PC process is performed. [0024] Referring to FIG. 5, a flow chart of the correction of the preferred power correction method of the preferred embodiment of the present invention before the actual burning of the hall is performed. First, the step of executing the first 〇pc process in the first PCA area 30/40. In the first 〇pc process, the LD 100 is controlled to emit laser beams having different power values onto the optical disk 18, whereby the correction data is recorded at the first PCA 30/40 at the first recording multiple. The reflected light beam returned from the optical disk 18 is converted into an electrical signal by the pd 1 〇 2 and transmitted to the RF circuit 120. The RF circuit 120 generates an RF signal according to the electrical signal and transmits it to the A/D converter 140 of the DSP 14 to convert it into a first digital signal. . Lu measuring unit 160 calculates 0 value 095130418 according to the first digital signal. Form No. A0101 Page 9/Total 30 Page 1003460506-0 1363342 [0025] [0027] [0028] | December 13, 00 For each power value, the measurement unit 1 6 〇 calculates a value. The first optimum power value is found by comparing the cold values corresponding to the respective power values. The first - the burning multiple can be 4 times or 2 times. The information recording apparatus 1 performs the burning speed at the time of burning as the product of the burning ratio and the basic burning speed specified by the information recording industry. Next, in step 52, the first optimum power value juice obtained based on the first OPC process The burning power value when performing actual burning. For example, if the first programming multiple is 4 times, and the burning multiple when performing the actual burning is 8 times, the power value when the actual burning is performed is the first optimal power value and the actual burning multiple is relative to the first burning. The product of the ratio value of the recording multiple (i.e., 8 χ / 4 χ ) β _ Next, in step 54, the burning power and the programming strategy table are set based on the calculated burning power value calculated in step 52. Each information recording device will pre-store a burning strategy table. When the actual burning is performed, the information recording device first reads the appropriate burning power from the programming strategy table as the current burning power. Next, in step 56, the tilt angle and focus error of the optical disc 18 relative to the laser beam are corrected based on the τ ε signal and the FE signal obtained in the first OPC process. Then 'step 58, the second OPC process is performed at the second PCA 32/42. Continuing Similar to the first OPC process, the LD 100 emits laser beams having different power values onto the optical disk 18 under the control of the APC circuit 122, so that the correction data is recorded at the second PCA 32/42 at the second programming multiple. After the cold values corresponding to the respective power values are calculated by the tens measuring unit 162, the stone values corresponding to the respective power values are compared to find a second optimum power value corresponding to the second programming multiple. Thereafter, the second OPC process is repeated once. The correction data is burned at the second PCA 32/42 by the third programming multiple, and the corresponding third burning frequency 095130418 is obtained. Form No. A0101 Page 10/Total 30 Page 1003460506-0 1363342 100 years. December 13 B Corrected the third best power value of the page. Alternatively, the second programming multiple may be 8 multiples, and the third programming multiple may be 16 multiples. The second programming frequency and the third programming frequency can be adjusted according to the highest achievable multiple of the information recording apparatus 1. The third programming multiple may be slightly smaller than the highest programming multiple, and the second burning multiple may be an intermediate value between the first programming multiple and the third programming multiple. [0029] Finally, in step 510, the programming strategy table is adjusted according to the second optimal power value and the third optimal power value obtained in step 58. Please refer to FIG. 6 , which is a flow chart of correcting the best power correction method according to a preferred embodiment of the present invention when performing actual programming. First, step 60, corresponding to a certain green data recording position on the optical disc 18, breaks a suitable burning multiple. Generally, the programming modes used by the information recording apparatus include a constant linear velocity (CLV) mode and a constant angular velocity (CAV) mode. In the CLV mode, the speed of the information recording is independent of the relative position of the data recording point on the optical disk 18, and always maintains a constant speed. In the CAV mode, the rotational speed of the optical disk 18 is constant, and the speed of the information recording varies in accordance with the distance of the data recording point from the center of the optical disk 18. In the area near the center of the optical disc 18, the speed of information recording is low, and the farther away from the center of the optical disc 18, the higher the speed of information recording. Since the track half-control near the center of the optical disk 18 is relatively small, the speed of information recording is relatively limited, so that the same amount of information recorded in the CAV mode takes less time on the same optical disk than the CLV mode. Therefore, the CAV model is more widely used in today's information. In the recorded device. In the present embodiment, the CAV mode is taken as an example. Referring to Fig. 7, the recording speed in the CAV mode is proportional to the distance of the recorded point from the center of the optical disk 18. Assume that in the lead-in area 095130418 Form No. AOlOi Page 11/Total 30 Page 1003460506-0 1363342 [0031] [0034] [0035] 100 years. On December 13th, the shuttle is replacing the burnt multiple of Ί (First Burning Multiple) As the initial burning speed, the burning factor at a certain point can be obtained by linear interpolation. Next, the 'step 62' divides the optical disc 18 into two recording areas in accordance with the recording speed. The first area is a data recording position from the lead-in area to a second recording frequency, and the second area is a data recording position corresponding to the second recording multiple to a data recording position corresponding to the third burning multiple. Next, in step 64, it is determined according to the programming multiple calculated in step 6〇, which data recording area the current data recording point is located. Then, in step 66, if the current data recording point is located in the first data recording area, then the programming power Ps can be obtained by the following linear interpolation formula: Ps = (〇P2-OPl)(Rs-Rl)/(R2_R1 ) 〇 卜 卜 〇 ι ι 为 为 is the first best power value, OP2 is the second best power value, R1 is the first programming multiple ' R2 is the second burning multiple, Rs is the current data recording point burning multiple. Finally, in step 68, if the current data recording point is located in the second data recording area, the current programming power Pt can be obtained by the following linear interpolation formula: Pt = (OP3-OP2)(Rt-R2)/(R3-R2 ) +OP2, where 〇P2 is the second best power value, OP3 is the third best power value, R2 is the second programming multiple, R3 is the third programming multiple, and Rt is the current data recording point. multiple. In the above embodiment, not only the low-order 0PC process is performed on the first pCA 30/40 located in the inner ring area of the optical disc, but also the high-multiple OPC process is performed on the second PCA 32/42 located in the outer peripheral area of the optical disc, thereby increasing the high multiple Accuracy of the best power prediction 095130418 Form No. A0101 Page 12 of 30 1003460506-0 [0036] 100 years. December 13th revision _ page | Please refer to Figure 8 and Figure 9, point &丨 or one, ----1 Knife is the (four) line drawing of the traditional best power correction method and the best power correction method described above. The horizontal subtraction represents the physical secret of the record point. The larger the number of physical sectors, the farther the position of the record record point is from the center of the light. The ordinate represents the (four) value, with the line fine representing the best record. Generally, if the prediction of the burning power is more accurate, the smaller the fluctuation range of the relative optimal power value, the more stable the data burning. It is obvious that the volatility of the city is small in Figure 9. Because Qian Ming _ the best power correction method of the present invention can predict the power of the high-multiple-burning, predict the quasi-mixing of the power, reduce the fluctuation of the stone value, and improve the burning. stability. Just refer to M1G«U, sub- (4) traditional best power correction method and the use of the best power correction method (parity inner error (PIE) φ line diagram. The number of errors that occur during the piEs burn process' usually the fewer errors indicate the more accurate the data. The abscissa represents the number of physical sectors in which the data is recorded, and the ordinate represents the value of piE. The value of PIE in the monthly chart 11 is much smaller than that in Figure 1〇, so it shows that the best power correction method in this month can improve the data record breaking. 0) 038] In the above embodiment, the number of times the second PC process is performed may not be limited to one or less than two times, such as one time, three times, four times, and the like. When there are more than 2 persons, the optimum power value obtained in the second 0PC process is not limited to two, and the number of recording areas of the corresponding optical discs 18 is not limited to two. [0039], 'τ, above, the invention meets the requirements of the invention patent, and the patent declaration is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the equivalent of 095130418 modification or change made by the person in the spirit of the present invention should be included in the following patent application. . Form No. A0101 Page 13/Total 30 Page 1003460506-0 1363342 December 13th, 2014 Shuttle Replacement Page [0040] [0044] [0044] [0046] [0047] [0048] BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of an information recording apparatus of the present invention, the information recording apparatus including an optical reading unit. [0051] FIG. Figure 2 is a diagram showing the internal optical path of the optical reading unit of Figure 1. Figure 3 is a schematic diagram of the structure of a DVD-R disc. Figure 4 is a schematic diagram of the structure of a DVD + R disc. Fig. 5 is a flow chart showing the correction of the actual power correction method in the preferred embodiment of the preferred embodiment of the present invention. Figure 6 is a flow chart showing the correction of the preferred power correction method of the preferred embodiment of the present invention when performing actual programming. Figure 7 is a schematic illustration of the optimum burn-in power required to calculate data for burning at a particular location on a disc in the flow shown in Figure 6. Fig. 8 is a graph showing the fluctuation curve of the conventional best power correction method. Figure 9 is a graph showing the fluctuation of the rock using the optimum power correction method of the present invention. Figure 10 is a graph showing the fluctuation of the number of data errors under the traditional best power correction method. Figure 11 is a graph showing fluctuations in the number of data errors using the optimum power correction method of the present invention. [Main component symbol description] Information recording device: 1 A/D converter: 140 OPU : 10 095130418 Form number A0101 Page 14 of 30 page 1003460506-0 1363342 100 years. December 13th nuclear replacement page [0054 D/A converter: 142 [0055] LD: 100 [0056] Firmware: 16 [0057] PD: 102 [0058] / 8 measuring unit: 16 0 [0059] FMD: 104 [0060] 0PC unit: 162 Φ [0061] ASP : 12 [0062] High-speed correction unit: 164 [0063] RF circuit: 120 [0064] Optical disc: 18 [0065] APC circuit: 120 [0066] First PCA: 30, 40 Φ [0067 ] DSP : 14 [0068] Second PCA: 32, 42 [0069] Process steps before burning: 50~510 [0070] Process steps in burning: 60~68 [0071] Best value: 80 095130418 Form number A0101 Page 15 of 30 Page 1003460506-0 .