13828twf.doc/c 200539116 九、發明說明： 【發明所屬之技術領域】 本發明是關於-種數位多功能光碟種類判斷方法，且 特別是關於-種區分唯讀式、單次燒錄式、以及多次燒錄 式的數位多功能光碟種類判斷方法。 【先前技術】 數位多功能光碟（digital versatile disc，簡稱為DVD) 已經是非常普遍的資料儲存格式。最早是用於存放影片， 後來逐漸躲儲存其他資料，例如使用於個人電腦上的程 式和槽案。傳_唯讀式光碟並不能滿^備份程式和播案 的需求’因此衍生了許多種可燒錄資料的數位多功能光 碟，目前常見的種類如下： 1·唯讀式數位多功能光碟，簡稱為DVD R〇M，其 中ROM表示唯讀記憶體，也就是read 〇nly mem〇ry。這 種光碟只能讀取，不能用來燒錄資料。 。 2·單次燒錄式數位多功能光碟，分為DVD_R與 DVD+R兩種規格，其中r表示。顧名思義， 這種光碟只能燒錄一次。 3·夕-人燒錄式數位多功能光碟，分為dvd_RW與 DVD+RW兩種規格，其中Rw表示r㈣出滅。這種/光 碟可以重複燒錄資料，使用起來最方便。 為了方便使用者，各家廠商都有推出相容於多種數位 多功能光碟的光碟機，然而每一種數位多功能光碟的讀寫 方式都不一樣，因此使用者放入光碟之後的第一件事，就 200539^8½ 麵’也就是區分唯讀式、單次燒錄式、以 及夕久燒錄式的數位多功能光碟。 傳統的方法是以兩個階段判斷光碟種類 階段是 2聚焦誤JUfbcus e叫訊號的振幅’先分離出多次燒 錄式數位多功能光碟。先打開光碟機的雷射光束，然後上 ::”頭（pick_up head，簡稱為PUH)，就會產生 …、誤差A號I焦誤差訊號的振幅與光碟的反射率 nm)成正tb ’而且Μ魏錢位多功能光碟的 iti 的’因此可_較小㈣驗差訊號振幅將 它分離出來。 日=參”謂1 ’ H吳差訊號是標示為的曲線，脱 2讀式與單次燒錄式數位多功能光碟的極限值，103是 j燒錄式數W魏光_紐值。只要聚賴差訊號 ，峰對峰電壓(peak_t0_peak voltage)小於多次燒錄式數位 2能光碟的極限值103,就可以判斷目前放入的光碟是 夕-人燒錄式數位多功能光碟。 分出多次燒錄式數位多功能光碟之後，傳統方法的第 階段是利用DVD_R與DVD_RW特有的凸紋預設孔資13828twf.doc / c 200539116 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a kind of digital multi-function disc type judgment method, and more particularly to a kind of distinguished read-only type, single-write type, and Multi-burning digital multi-function disc type judgment method. [Previous Technology] Digital versatile disc (DVD) is a very common data storage format. It was first used to store videos, but later it gradually disappeared to store other data, such as programs and slots used on personal computers. Biography_Read-only discs cannot meet the requirements of backup programs and broadcasts', so many types of digital multi-function discs can be burned. The common types are as follows: 1. Read-only digital multi-function discs, referred to as It is DVD ROM, in which ROM represents read-only memory, which is read 〇nly mem〇ry. This disc can only be read and cannot be used to burn data. . 2. Single-write digital multi-function discs are divided into two specifications: DVD_R and DVD + R, where r represents. As the name implies, this disc can only be burned once. 3. · Xi-man-burning digital multi-function disc, divided into dvd_RW and DVD + RW specifications, where Rw means r㈣ out. This / disc can be re-burned and is the most convenient to use. For the convenience of users, various manufacturers have introduced optical disc drives that are compatible with a variety of digital versatile discs. However, each digital versatile disc reads and writes in different ways, so the first thing that users do after inserting a disc "On the 200539 ^ 8½ side", that is, a digital multi-function disc that distinguishes read-only, single-write, and yiuku-write. The traditional method is to judge the type of the disc in two stages. The stage is 2 focusing errors. The amplitude of the JUfbcus e-call signal ’is first separated into a multi-burning digital multi-function disc. First turn on the laser beam of the optical disc player, and then put on the ":" head (pick_up head, referred to as PUH), it will produce ..., the amplitude of the error A and I focus error signal and the reflectivity of the optical disc nm) are positive tb ' Wei Qianwei's multi-function disc's iti's can therefore be separated by a smaller amplitude of the differential signal. Day = Refer to the "1" H Wu differential signal is marked as a curve, de-reading and single burning The limit value of the recording digital multi-function disc, 103 is the number of j burning type W Weiguang_New value. As long as the difference signal is used and the peak-to-peak voltage (peak_t0_peak voltage) is less than the limit value 103 of the multi-burning digital 2-energy disc, it can be judged that the currently inserted disc is an evening-person burning digital multi-function disc. After the multi-burning digital multi-function disc is released, the first stage of the traditional method is to use the embossed preset holes unique to DVD_R and DVD_RW.
只、and pre_pit information)，以及 DVD+R 與 DVD+RW 特有的預設槽位址資料（address in、pre_gr〇〇ve =f〇nnatlon) ’來區分出唯讀式與單次燒錄式的數位多功 ^光碟夕_人燒錄式的數位多功能光碟已經在第一階段區 二出來’在這個階段不用考慮。因此，只要能讀出凸紋預 政孔資料或預設槽位址資料的，就是單次燒錄式數位多功 20053^4., 能光碟，否則就是唯讀式數位多功能光碟。 至於傳統判斷方法的詳細步驟，請參照圖2。首先， 步驟202會打開雷射光束，上下移動讀寫頭，以產生聚焦 誤差訊號，然後步驟204會偵測聚焦誤差訊號的最大值與 最小值，步驟206會檢查聚焦誤差訊號的峰對峰電壓是^ 小於無光碟片的極限值。如果是，步驟208會判斷光碟機 内並沒有置放光碟片。 μ 如果聚焦誤差訊號的峰對峰電壓大於或等於無光碟片 的極限值，接下來的步驟21〇會檢查聚焦誤差訊號的峰對 峰，壓是否小於多次燒錄式數位多功能光碟的極限值。如 果是，步驟212會判斷放入的光碟片為多次燒錄式數位多 功能光碟。 區分出多次燒錄式數位多功能光碟之後，步驟214會 進行校正(calibration)與循軌(tracking)等動作，這是為f ，面的，取資料作準備。接著步驟216會檢查置入的光碟 是否可讀出凸紋預設孔資料或預設槽位址資料，如果可 以’步驟218會觸置人的光碟為單次燒錄式數位多功能 ^碟，否則步驟220會判斷置入的光碟為唯讀式數位多功 能光碟。 傳統的判斷方法有不少缺點，其一是當讀寫頭品質不 佳時’讀取的聚該差喊品質摘之降低(如訊號振幅 大小之偏移）’因此提高誤判機率。其二是偶爾會出現反 射率特別高的多錢錄式數位多功能光碟，或反射率特別 低的唯核或單錢錄式触乡功能光碟，此時傳統方法 200539116 13828twf.doc/c =r判。其三’如果因為硬體或韋刃體上的問題，使 槽位址資料不易讀取，單次燒錄 u^人式數位夕魏絲就很可能賴判為唯讀式 數位夕功能光碟。第四項缺點，讀取凸 設f紐資料的步驟，是位於啟動程序(一二:) S此唯讀式數㈣魏光碟必驗過許多步驟才 而在判斷出碟片種類之後，還要重新進入 間。主；^對碟片進行讀取等動作，這樣會浪費不少時 由以上說明可知，我們需要更好的方法以克 提高判斷的準確度，並且縮短判叫 本發明提供-種數位多功能光碟種類判斷方法 2 f ΐ技術的問題’克服碟片與讀寫頭品質等變心影 ;碟==準確度’並且縮短判斷唯讀式數位多功能 本發明提出-種數位多功能光碟種類判斷方法， 二驟為·自—數位多魏光碟讀取-循執誤差訊號，若循 之振?大於一第-預設數值，則判斷上述的數 夕^光碟為單錢錄歧位乡魏絲；賴 夕=CD 5ίι號’若RECD訊號為零，則判斷上述的數位 碟為空白的多次燒錄式數位多功能柄； 訊號，若總和強度訊號大於—第二預設數 判斷上述數位多功能光碟為唯讀式數位多功能光碟， 200539116 13828twf.doc/c 種，方法，分別包含下列;=:種== =判:據數？功能光碟是否购 如後面的較佳實關所述，本發明使_卿依據與 先則技術不同’所絲判_訊餘不易受到則與讀寫 頭品質等Μ影響1且本㈣提出的方法，能在啟動程 ^的開頭齡辨出唯讀式數位多功能光碟，不似先前技 術，而要花費時間進行循軌與校正等步驟。因此能克服先 ，技，的缺點，有極高的觸準確度，並且能大幅縮短判 斷唯讀式數位多功能光碟所需的時間。 為讓本發明之上述和其他内容、特徵和優點能更明顯 易懂’下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 下面以較佳實施例，說明本發明提出的數位多功能光 碟（digital versatile disc，縮寫為DVD)種類判斷方法。 本實施例是以三個階段來區分唯讀式數位多功能光碟 (DVD ROM，ROM 為 read only memory 的縮寫）、單次Only, and pre_pit information), and the unique slot address information (address in, pre_gr〇〇ve = f〇nnatlon) unique to DVD + R and DVD + RW to distinguish between read-only and single-write Digital multi-function ^ disc evening _ people burn-in digital multi-function discs have come out in the first stage zone 'no need to consider at this stage. Therefore, as long as the embossed pre-drilled hole data or the preset slot address data can be read, it is a single-write digital multi-function 20053 ^ 4., An optical disc, otherwise it is a read-only digital multi-function disc. As for the detailed steps of the traditional judgment method, please refer to FIG. 2. First, step 202 turns on the laser beam, moves the read-write head up and down to generate a focus error signal, then step 204 detects the maximum and minimum values of the focus error signal, and step 206 checks the peak-to-peak voltage of the focus error signal. Yes ^ is less than the limit of no disc. If yes, step 208 determines that no optical disc is placed in the optical disc drive. μ If the peak-to-peak voltage of the focus error signal is greater than or equal to the limit of the disc-less disc, the next step 21 is to check whether the peak-to-peak voltage of the focus error signal is less than the limit of the multi-burning digital multi-function disc value. If yes, step 212 determines that the inserted disc is a multi-burning digital multi-function disc. After distinguishing the multi-burning digital multi-function disc, step 214 will perform operations such as calibration and tracking. This is for f, surface, and data preparation. Next, step 216 will check whether the inserted disc can read the embossed preset hole data or the preset slot address data. If it can, 'the step 218 will touch the disc as a single-burning digital multi-function ^ disc, Otherwise, step 220 determines that the inserted optical disc is a read-only digital multi-function disc. The traditional judgment method has many disadvantages. One is that when the quality of the read-write head is not good, the quality of the reading is reduced (such as the deviation of the signal amplitude), so the probability of misjudgment is increased. The second is that occasionally a multi-money recording digital multi-function disc with a particularly high reflectance, or a nuclear-only or single-money recording home-function disc with a particularly low reflectance is used. At this time, the traditional method 200539116 13828twf.doc / c = r Sentence. Thirdly, if the slot address data is difficult to read because of problems with the hardware or the blade, a single-burning u ^ human digital Xi Weisi is likely to be judged as a read-only digital Xi Yu disc. The fourth disadvantage, the step of reading the convex f button data is located in the start-up procedure (12: 2) S This read-only number: Wei CD must go through many steps before judging the disc type, but also Re-enter the room. Master; ^ perform actions such as reading the disc, which will waste a lot of time. From the above description, we need a better method to improve the accuracy of judgment and shorten the judgment. The present invention provides a digital multi-function disc Type determination method 2 f ΐTechnical issues 'overcome changing quality of discs and read / write heads; disc == accuracy' and shorten the judgment of read-only digital multi-function The present invention proposes a digital multi-function disc type determination method, The second step is to read the self-compliance error signal from the digital multi-Wei disc. If the following value is greater than the first preset value, it is judged that the above-mentioned number disc is a single-money recording Weiwei township; Lai Evening = CD 5ί ′ 'If the RECD signal is zero, the digital disc is judged to be a blank multi-burning digital multi-function handle; if the total intensity signal is greater than the second preset number, the digital multi-function disc is judged This is a read-only digital multi-function disc, 200539116 13828twf.doc / c. The methods include the following; =: species == = judgment: data? Whether or not a functional optical disc is purchased is described in the following better facts. The present invention enables _Qing to judge based on a difference from the prior art _ Xun Yu is not easily affected by the M and the quality of the read and write head1 and the method proposed here. It can identify the read-only digital multi-function disc at the beginning of the startup process. Unlike the prior art, it takes time to perform tracking and correction steps. Therefore, it can overcome the disadvantages of advanced technology, high touch accuracy, and greatly reduce the time required to judge a read-only digital multi-function disc. In order to make the above and other contents, features, and advantages of the present invention more comprehensible, the preferred embodiments will be described below in detail with reference to the accompanying drawings, as follows. [Embodiment] The following describes a method for judging the type of a digital versatile disc (abbreviated to DVD) according to the present invention in a preferred embodiment. This embodiment uses three stages to distinguish between a read-only digital multi-function disc (DVD ROM, ROM is an abbreviation of read only memory),
20053H 燒錄式數位多功能光碟（DVD-R與DVD+R)、以及多次 燒錄式數位多功能光碟（DVD-RW與DVD+RW)。以下 分別說明這三個階段。 第一個階段是利用尚未完成鎖軌時的循轨誤差 (tracking error)訊號的振幅大小，區分出單次燒錄式數位 多功能光碟。循軌誤差訊號有兩種產生方式，預設的產生 方式是差異式推拉(differential push-pull，DPP)，是根據 讀寫頭(pick-up head)上各區域讀取到的反射光束強度差 異，計算出循軌誤差訊號。另一種方式是差異式相位偵測 (differential phase detection，DPD)，是根據讀寫頭各區域 讀取到的反射光束相位差異，計算出循軌誤差訊號。這二 種方式(DPP與DPD)都是習知技術，在此不再詳述。 根據二個種類DVD之規格’唯讀式數位多功能光碟 的執距很小，接近正圓形，因此產生出來的循軌誤差訊號 非常小。多次燒錄式數位多功能光碟，由於反射率 (reflectivity)低，以及初始增益設定(initial gains setting)的 關係，產生出來的循轨误差訊號也非常小。然而單次燒錄 式數位多功能光碟的循執誤差訊號，比其他兩種大很多。 因此很容易就能正確判斷出單次燒錄式數位多功能光碟。 本實施例的第二個階段，是利用RECD訊號區分出 空白的多次燒錄式數位多功能光碟。在此，RECD訊號係 為一種藉由偵測自光碟片所反射回來之雷射光所產生的訊 號。由於儲存資料與否會改變光碟片中儲存資料部份之特 性，因此儲存有資料光碟片所產生之RF訊號會比沒有儲 20053ftU4< 存資料之光碟片來得大。藉此，可以利用分析自光碟片之 RF訊號的大小來產生RECD訊號，若RF訊號值大於一 預定值便將RECD訊號設為”high”或其值為一，反之則設 為’’low”或其值為零。藉此，本實施例便可以透過RECD 訊號，直接區分是否為空白的多次燒錄式數位多功能光 碟。 本實施例的第三個階段，是利用總和強度(RF level) 訊號，也就是讀寫頭各區域所讀取到的反射強度總和，來 區分唯讀式和已經燒錄資料的多次燒錄式數位多功能光 碟。因為燒錄過程會改變DVD表面之材料的性質，因此 有沒有燒錄過之DVD的反射率差別很大，造成已經燒錄 >料的夕-人燒錄式數位多功能光碟的總和強度訊號，比唯 頃式數位多功能光碟要小很多，因此很容易就能準確區分20053H Burnable digital versatile discs (DVD-R and DVD + R), and multi-burnable digital versatile discs (DVD-RW and DVD + RW). The three phases are explained below. The first stage is to use the amplitude of the tracking error signal before the track is locked to distinguish the single-burning digital multi-function disc. There are two ways to generate the tracking error signal. The default method is differential push-pull (DPP), which is based on the difference in reflected beam intensity read by each area on the pick-up head. To calculate the tracking error signal. Another method is differential phase detection (DPD), which calculates the tracking error signal based on the phase difference of the reflected beam read from each area of the head. Both of these methods (DPP and DPD) are known technologies and will not be described in detail here. According to the specifications of the two types of DVD's, the read-only digital multi-function disc has a small grip and is close to a perfect circle, so the tracking error signal generated is very small. Due to the low reflectivity and the initial gains setting, the multi-burning type digital multi-function optical disc has a very small tracking error signal. However, the one-shot digital multi-function disc's compliance error signal is much larger than the other two. Therefore, it is easy to correctly determine a single-write digital versatile disc. The second stage of this embodiment is to distinguish blank blank multi-burning digital multi-function discs using the RECD signal. Here, the RECD signal is a signal generated by detecting laser light reflected from the optical disc. Because the stored data will change the characteristics of the stored data in the optical disc, the RF signal generated by the stored optical disc will be greater than the optical disc without the 20053ftU4 < stored data. In this way, the RECD signal can be generated by analyzing the size of the RF signal from the optical disc. If the RF signal value is greater than a predetermined value, the RECD signal is set to "high" or its value is one, otherwise it is set to "low" Or its value is zero. In this way, this embodiment can directly distinguish whether it is a blank multi-burning digital multi-function disc through the RECD signal. The third stage of this embodiment is to use the total intensity (RF level ) Signal, that is, the sum of the reflection intensities read from each area of the read / write head, to distinguish between read-only and multi-burning digital multi-function discs with recorded data. Because the burning process will change the material on the DVD surface Due to the nature of the DVD, there is a large difference in the reflectivity of DVDs that have not been burned, resulting in the sum of the intensity signals of already-burned & material-burning digital multi-function discs, which are higher than those of digital-only digital multi-function discs. Much smaller so it's easy to distinguish accurately
圖3為本貫化例的洋細流程。首先，步驟go]會從需 要判斷種類的數位多功能光碟讀取循軌誤差訊號，二後步 驟304會檢查循軌誤差訊號的振幅是否大於某—預設數 ,。，步驟306會決定判斷結果為單次燒錄式數位 多功能光碟。到這裡為止，就是上述的第— 。 如果不是單次燒錄式數位多功能光碟 上述的數位多功能光碟讀取RECD訊號 會檢查RECD訊號是否為零。如果是，$ 步驟308會從 然後步驟310 步驟312會決定 20053 Qisl^oc/c 判斷、，果為空白的多次燒錄式數位多功能光碟。從步驟 308到這裡為止，就是上述的第二個階段。 如果不是空白的多次燒錄式數位多功能光碟，步驟 314會從上述的數位多功能光碟讀取總和強度訊號，然後 步驟316會檢查總和強度訊號是否大於某一預設數值，這 個預設數值和步驟304的不同。如果是，步驟318會決定 判斷結果為唯讀式數位多功能光碟，否則步驟32〇^^夫定 判斷結果為已經燒錄資料的多次燒錄式數位多功能^碟。 攸步驟314到這裡為止，就是上述的第三個階段。 由以上實施例的說明可知，本發明的判斷根據是循軌 誤差訊號、RECD訊號、以及總和強度訊號，和先前技術 所使用的完全不同，這三種訊號較不易受到碟片與讀寫頭 品質等變因影響，並且在不同種類DVD碟片之間的訊號 大小差別也較為明顯。而且本發明所使用的訊號都是與雷 射自碟片反射之訊號本身大小等有關，而不像習知技術所 使用之凸紋預設孔資料與預設槽位址資料需透過進一步解 析自光碟片反射之訊號才能獲知，因此本發明能在啟動程 序(servo_on process)的開頭就分辨出唯讀式數位多功能光 碟’不似先則技術’需要花費時間進行循執(tracking)與校 正(calibration)等步驟。因此本發明能克服先前技術的缺 點，有極高的判斷準確度，並且能大幅縮短判斷唯讀式數 位多功能光碟所需的時間。 另外’雖然上述實施例是依序使用循執誤差訊號、 RECD訊號、以及總和強度訊號來區分判斷光碟片之種 12 2o〇539116 13828twf.doc/c 類，但是本發明並不限於此。本發明之其它實施例，也可 以分別只使用循執誤差訊號、RECD訊號或總和強度訊號 來判定光碟片種類，或是以任何順序使用上述三個訊號之 至少二個來判斷光碟片之種類。少數的差別是，使用的訊 號種類越多，便可以將光碟片的種類判斷的更精確；還有， 以不同順序使用相同的訊號時，可能判斷的效果會有差 別。FIG. 3 is a detailed flowchart of the present embodiment. First, step go] will read the tracking error signal from the digital multi-function disc that needs to be judged. Second, step 304 will check whether the amplitude of the tracking error signal is greater than a certain number. In step 306, it is determined that the judgment result is a single-write digital multi-function disc. So far, this is the first —. If it is not a single-write digital versatile disc, the above-mentioned digital versatile disc reads the RECD signal and checks whether the RECD signal is zero. If yes, step 308 will be followed by step 310 and step 312 will be decided 20053 Qisl ^ oc / c. If it is blank, the multi-burning digital multi-function disc will be blank. From step 308 to here, this is the second stage described above. If it is not a blank multi-burning digital multi-function disc, step 314 will read the total intensity signal from the above-mentioned digital multi-function disc, and then step 316 will check whether the total intensity signal is greater than a preset value. This preset value Different from step 304. If it is, step 318 determines that the judgment result is a read-only digital multi-function disc, otherwise step 32 is determined to be a multiple-burning digital multi-function disc that has recorded data. Step 314 here is the third stage described above. As can be seen from the description of the above embodiments, the judgment basis of the present invention is the tracking error signal, the RECD signal, and the total intensity signal, which are completely different from those used in the prior art. These three signals are less susceptible to the quality of the disc and the read / write head. The effect of changes, and the signal size difference between different types of DVD discs is also more obvious. Moreover, the signals used in the present invention are all related to the size of the signal reflected by the laser from the disc, unlike the embossed preset hole data and preset slot address data used in conventional technology, which need to be further analyzed from Only the signal reflected by the optical disc can be known, so the present invention can distinguish the read-only digital multifunctional disc 'unlike the prior art' at the beginning of the servo_on process. It takes time to track and correct ( calibration) and other steps. Therefore, the present invention can overcome the shortcomings of the prior art, has extremely high judgment accuracy, and can greatly shorten the time required for judging a read-only digital multi-function disc. In addition, although the above embodiment uses the non-compliance error signal, the RECD signal, and the total intensity signal in order to distinguish the type of the disc 12 2o〇539116 13828twf.doc / c, the present invention is not limited to this. In other embodiments of the present invention, it is also possible to use only the non-compliance error signal, the RECD signal, or the total intensity signal to determine the type of the optical disc, or to use at least two of the three signals in any order to determine the type of the optical disc. The few differences are that the more types of signals are used, the more accurate the disc type can be judged; moreover, when the same signals are used in different orders, the effect of the judgment may be different.
雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 和範圍内，當可作些許之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1為聚焦誤差訊號的示意圖。 圖2為先前技術的數位多功能光碟種類判斷方法流程 圖3為本發明提出的數位多功能光碟種類判斷方法的 實施例的流程圖。Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be determined by the scope of the attached patent application. [Schematic description] Figure 1 is a schematic diagram of a focus error signal. FIG. 2 is a flow chart of a method for determining a type of a digital multi-function disc according to the prior art. FIG. 3 is a flowchart of an embodiment of a method for determining a type of a digital multi-function disc according to the present invention.
【主要元件符號說明】 1〇1 :聚焦誤差訊號 102 :唯讀式與單次燒錄式數位多功能光 103 ·多次燒錄式數位多功能光碟的極限值 202 :產生聚焦誤差訊號 204 :偵測聚焦誤差訊號的大小 206 ·峰對峰電壓小於無光碟片的極限值？ 13 2005393^, 208 :無光碟片 210 ·峰對峰電壓小於多次燒錄式數位多功能光碟 極限值？ 212 ·多次燒錄式數位多功能光碟 214 :校正與循軌等動作 216 ·可讀出凸紋預設孔資料或預設槽位址資料？ 218 ·單次燒錄式數位多功能光碟 220 ·唯讀式數位多功能光碟 302 :讀取循執誤差訊號 304 ·循軌誤差訊號之振幅大於預設數值？ 306 ·單次燒錄式數位多功能光碟 308 :讀取RECD訊號 310 ： RECD = 〇? 312 :空白的多次燒錄式數位多功能光碟 314 :讀取總和強度訊號 316 :總和強度訊號大於預設數值？ 318 :唯讀式數位多功能光碟 320 ·已燒錄資料的多次燒錄式數位多功能光碟[Description of main component symbols] 101: focus error signal 102: read-only and single-write digital multi-function light 103 · limit value of multiple-write digital multi-function disc 202: focus error signal 204: Detecting the size of the focus error signal 206 · Peak-to-peak voltage is less than the limit of no disc? 13 2005393 ^, 208: No disc 210 · Peak-to-peak voltage is less than the limit of multi-burning digital multi-function disc? 212 · Multi-burning digital multi-function disc 214: Correction and tracking actions 216 · Can read embossed preset hole data or preset slot address data? 218 · Single-write digital multi-function disc 220 · Read-only digital multi-function disc 302: Read the compliance error signal 304 · The amplitude of the tracking error signal is greater than the preset value? 306 · Single-burning digital multi-function disc 308: Reading the RECD signal 310: RECD = 〇? 312: Blank multiple-burning digital multi-function disc 314: Reading the total intensity signal 316: The total intensity signal is greater than the pre-recorded Set value? 318: Read-only digital multi-function disc 320Multi-burning digital multi-function disc with recorded data