TW200539114A - Method for type determination of digital versatile discs - Google Patents

Method for type determination of digital versatile discs Download PDF

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Publication number
TW200539114A
TW200539114A TW93127819A TW93127819A TW200539114A TW 200539114 A TW200539114 A TW 200539114A TW 93127819 A TW93127819 A TW 93127819A TW 93127819 A TW93127819 A TW 93127819A TW 200539114 A TW200539114 A TW 200539114A
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Taiwan
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peak
dvd
value
wobble signal
type
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TW93127819A
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Chinese (zh)
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TWI340964B (en
Inventor
Chang-Ricky
Allen Lu
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Via Tech Inc
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Priority to US10/908,745 priority Critical patent/US7746745B2/en
Priority to US10/908,746 priority patent/US7626907B2/en
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Publication of TWI340964B publication Critical patent/TWI340964B/en

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    • 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
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark

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  • Optical Recording Or Reproduction (AREA)

Abstract

A method for type determination of digital versatile discs (DVD), which is used for classifying DVD- and DVD+. The main steps of the method include: Initialize related parameters, read a general wobble signal from a DVD, and then calibrate the magnitude to a predetermined standard value. After the calibration, read the peak/bottom hold values of the general wobble signal and derive the peak-to-peak voltage from the peak/bottom hold values. Finally, if the peak-to-peak voltage is greater than a predetermined threshold value, the DVD is classified as a DVD-, otherwise it is classified as a DVD+.

Description

200539114 13829twf.doc/006 九、發明說明： 【發明所屬之技術領域】 本發明是關於-種判斷數位多功能光碟麵的方法， 邱㈣DVD-與DVD+光碟片的方法。 【先前技術】 時下已經非$普及的數位多功能光碟（dimity versatile disc ’簡稱為DVD) ’除了只能用來讀取資料的DVD_R〇M (後面的“ROM”代表唯讀式記憶體，也就是—_ memory)以外，也有可供燒錄資料的種類。而可供燒錄 資料的DVD，因為規格不同，又分為〇¥1)_與1)¥1)+兩 種。目前大部分的DVD光碟機都相容於多種不同規格， 因此判斷使用者放人的光碟片種類，就成為—項重要技 術。 目前的方法是使用預設槽擺動訊號（pre_gr〇〇ve wobble signal，以下簡稱擺動訊號）内含的位置資訊來判 斷DVD種類。根據DVD的規格，dvd_r〇m沒有擺動 訊號’而DVD〜與DVD+除了 一般軌道之外，還會有擺 動訊號，其來源請參照圖1。當光碟片在DVD光碟機裡 面旋轉時Y讀寫頭1〇1會循著軌道102向外滑出。如圖所 不，此時項寫頭101的Photo diode 1C (感光二極體積體電 路)之A、B、C、D四個區域排列如圖丨所示，會各自感 應到不同強度的訊號，而擺動訊號係根據如下之公式獲 得： G x [ gi X (A + D) - g2 X (B + C)] 200539114 13829twf.doc/006 其中G、gi與g2皆為可調整之增益值(gain)。 DVD—與DVD+各有一套定位方式是混在擺動訊號 之内，可經由邏輯運算電路經解譯後取得目前位置資訊。 圖2繪示DVD+的擺動訊號，在擺動訊號201之中含有 多個相變區202，此擺動訊號經邏輯電路運算解譯後，可 以取得位置資訊。至於DVD —的擺動訊號請參照圖3， 在擺動訊號301之中含有多個凸紋預設孔(land prei)it) 302，同理位置資訊可經由邏輯電路運算解譯後。由圖2 與圖3可知，DVD+與DVD—的擺動訊號不同，邏輯運 算電路的解譯功能也不同，因此可用來判斷DVD種類。 圖4為目前使用的數位多功能光碟種類判斷方法的流 程圖。首先步驟402會先猜測使用者放入的光碟片為 DVD+，因此設定DVD+使用的相關參數，然後步驟4〇4 會嘗試讀取目前位置資訊，如果讀取成功，步驟4〇6會判 斷光碟片的種類為DVD+。否則，接下來的步驟408會猜 ，光碟片為DVD—,並設定DVD —使用的相關參數，然 後步驟410會再度嘗試讀取目前位置資訊，如果成功，步 驟412會判斷光碟片的種類為DVD —，否則步驟414會 判斷光碟片的種類為 DVD-ROM 〇 攻種方法的缺點是DVD+與DVD —使用的相關參 數’必須能涵蓋大多數的光碟片，特別是燒錄過資料的光 碟片^上面的位置資訊品質會變差，經常容易誤判。因此， 我們為要—種方法來解決這個問題，以降低DVD+與 DVD〜的誤判機率。 doc/006 20053JH4 【發明内容】 ，以克 一光碟200539114 13829twf.doc / 006 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a method for judging the surface of a digital multi-function optical disc, a method for a DVD-DVD and a DVD + disc. [Previous technology] Nowadays, the digital versatile disc (dimmed versatile disc 'for short' DVD) which has not been widely used now, except for DVD_ROM which can only be used to read data ("ROM" in the following stands for read-only memory, That is, besides —_ memory), there are also types of data that can be burned. The DVDs that can be used for recording materials are divided into two types: 0 ¥ 1) _ and 1) ¥ 1) + because of different specifications. At present, most DVD players are compatible with a variety of different specifications, so judging the type of discs that users put in has become an important technology. The current method is to use the position information contained in a pre-groove wobble signal (hereinafter referred to as a wobble signal) to determine the type of DVD. According to DVD specifications, dvd_r0m has no wobble signal, and DVD ~ and DVD + have wobble signals in addition to normal tracks. Please refer to Figure 1 for the source. When the disc is rotated inside the DVD drive, the Y head 101 slides out along the track 102. As shown in the figure, at this time, the four areas A, B, C, and D of the photo diode 1C (photodiode volume body circuit) of the item writing head 101 are arranged as shown in Figure 丨, which will each sense signals of different strengths. The swing signal is obtained according to the following formula: G x [gi X (A + D)-g2 X (B + C)] 200539114 13829twf.doc / 006 where G, gi, and g2 are all adjustable gain values (gain ). DVD- and DVD + each have a set of positioning methods that are mixed in the wobble signal, and the current position information can be obtained after interpretation by logical operation circuits. Figure 2 shows the wobble signal of DVD +. The wobble signal 201 contains a plurality of phase change regions 202. After the wobble signal is interpreted by a logic circuit operation, position information can be obtained. As for the wobble signal of the DVD-, please refer to FIG. 3. The wobble signal 301 includes a plurality of land prei its 302. Similarly, the position information can be interpreted through logic circuit operations. As can be seen from Fig. 2 and Fig. 3, the wobble signals of DVD + and DVD- are different, and the interpretation function of the logic operation circuit is also different, so it can be used to judge the type of DVD. Fig. 4 is a flowchart of a method for judging the type of a digital multi-function disc currently used. First, step 402 will guess the disc inserted by the user as DVD +, so set the relevant parameters used by DVD +. Then step 404 will try to read the current location information. If the reading is successful, step 406 will judge the disc. The type is DVD +. Otherwise, the next step 408 will guess that the disc is DVD—, and set the relevant parameters used by DVD — and then step 410 will try to read the current location information again. If it succeeds, step 412 will determine that the disc type is DVD — Otherwise, step 414 will judge the type of the disc is DVD-ROM 〇 The disadvantage of this method is DVD + and DVD —The relevant parameters used must be able to cover most of the discs, especially the discs with recorded data ^ The quality of the location information above will deteriorate and it is often easy to misjudge. Therefore, we want to-a way to solve this problem, in order to reduce the probability of misjudgment of DVD + and DVD ~. doc / 006 20053JH4 [Content of the invention], a gram of a disc

服杰ϊϊΓΐ供—種數位多功能光碟種類判斷方法 服先刚技術谷易誤判的缺點，提高DVD+與DVD 片的正確判斷率。 、去施例為—龍位多功能光碟種類判斷方 失數自先設定相關參數，然後根據已設定之 參；自：數位多功能光碟讀取-泛擺動訊號(包含一擺動 可以同時讀取之其它訊號），並調整擺動訊號之 ”預③標準值。校正擺動訊號的大小後，讀取泛擺 動心虎的最大持續值與最小持續值，據以求得峰對峰電愿 值(通常為舰轉触狀絲）。最後，料料電壓值 =-預設臨界值，則判斷此數位多功能光碟之種類為 DVD-，關判斷此數位多功能光碟之種類為DvD+e 當然，若峰對峰電壓值為零或小於另—倾臨界值，可以 判斷此數位多功能光碟之種類為DVD-ROM。 、本發明之[實糊為-魏位乡魏柄麵判斷 方法’其主要步驟為：先設定DVD —使帛的相關參數， 然後自-數位多魏光碟讀取—獅峨，並調整擺動訊 ，之大小至—預設鮮值。·，使用-最大最小值擷取 裝^，讀取擺動訊號之最大持續值與最小持續值，並且根 據這兩樣數據，求得擺動訊號之峰對峰電壓 比轉數位後之結果)。最後，根據峰對彻值(的::類 在DVD〜與DVD+之間判斷數位多功能光碟之種類。 本發明提出的數位多功能光碟種類判斷方法，是根據 2〇〇53?Π4〇〇6 擺動δίΐ號的峰對峰電壓值大小，以分辨dvd—與DVD+ 這兩種數位多功能光碟，並非根據先前技術所倚賴的内含 於擺動訊號中的目前位置資訊，因此足以克服先前技術的 缺點，提尚DVD光碟片種類的正確判斷率。 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】 下面以實施例，說明本發明提出的數位多功能光碟種 類判斷方法。 ▲本發明之一實施例的關鍵是讀取泛擺動訊號（包含擺 動訊號與可以一併讀取之其它訊號)並找出其最大持續值 (peak hold value)與最小持續值(bottom hold value)，然後 求得擺動訊號的峰對峰電壓值(peak_t〇-peak v〇ltage)(例如 =一最大持續值與相鄰之一最小持續值之間的差距，並通 书為類比轉數位後之結果），並且根據峰對峰電壓值的大 小以區分DVD+和DVD —(甚至DVD_R〇M)。至於這兩 種DVD的峰對峰電壓值有何不同，請參照圖2與圖$。 圖2繪示DVD+的泛擺動訊號，其僅包含一擺動訊 ，，此擺動訊號之最大持續值在圖中標示為2〇4而最小持 績值在圖中標示為2〇5。兩個持續值分別為擺動訊號加 的最上緣與最下緣，而峰對峰電壓值2〇3就是最大持續值 2〇4減去最小持續值2〇5，也就是擺動訊號2〇1本身的大 J區間。當然，為求簡化，峰對蜂電壓值203可以是相鄰 2〇〇5313?Π4/006 之一最上緣與一最下緣之間的差距。 至於圖3繪示的DVD—的擺動訊號，就比較複雜。 如圖所示，因為DVD—之泛擺動訊號同時包含了一擺動 訊號301以及依附於擺動訊號301之凸紋預設孔(land pre-pit) 302 ， 因此最大持續值 305 係位於上方的凸紋預設孔 尖端，而最小持續值306位於下方的凸紋預設孔尖端。也 因為這樣，兩個持續值的差距，也就是峰對峰電壓值3〇4， 會比擺動訊號301本身的大小區間303還要大。當然，為 求簡化，峰對峰電壓值203可以是相鄰之一位於上方的凸 紋預設孔與一位於下方的凸紋預設孔之間的差距。 如前面所言，本實施例就是根據DVD+的峰對峰電 壓值203與DVD—的峰對峰電壓值304之間的大小差異， 來判斷區分DVD+與DVD—。在此，利用DVD—之泛 擺動訊號會有凸紋預設孔而DVD+之泛擺動訊號沒有凸紋 預設孔，可以讓DVD —與DVD+之峰對峰電壓值有明顯 之不同，而提供識別數位多功能光碟之種類的管道。特別 是本實施例還可以將來自不同數位多功能光碟之泛擺動訊 號中之擺動訊號的大小調整到一預設標準值附近，藉以消 除不同數位光碟所引起的大小差異，更可以讓峰對峰電壓 值的差別幾乎都是由於凸紋預設孔的存在而產生，而明顯 地較習知技術易於區別DVD—與DVD+。 本發明之另一實施例的詳細流程，請參照圖5。 首先，假設未知的光碟片種類為DVD—，因此步驟 502會設定DVD—使用的相關參數； 200539114 13829twf.doc/006 然後步驟504會使用步驟502所設定之相關參數，自 未知的光碟片上讀取泛擺動訊號； 緊接著步驟506會調整泛擺動訊號中之擺動訊號的大 小至一標準值，其用意是校正擺動訊號的大小區間，讓不 同廠牌型號的光碟片（甚至不同光碟機所讀取的）都能使用 共同的判斷標準。 校正過擺動訊號之後，步驟508會讀取擺動訊號的最 大持續值與最小持續值。 然後，步驟510會根據這兩個持續值，求得擺動訊號 的峰對峰電壓值。此時如果未知的光碟片確實為DVD一， 由於凸紋預設孔影響，峰對峰電壓值會大於標準值(如〇·3 伏特）的擺動訊號大小，如圖3所示，否則峰對峰電壓值 就等於標準值，如圖2所示。因此步驟512會判斷峰對峰 電壓值是否大於一個預設的臨界值，如果是，步驟514會 判斷未知的光碟片種類為DVD—，否則步驟516會判斷 未知的光碟片種類為DVD+。 由以上說明可知，本發明提出的數位多功能光碟種類 判斷方法，是根據擺動訊號的峰對峰電壓值大小，以分辨 DVD—與DVD+這兩種數位多功能光碟，並非根據先前 技術所倚賴的内含於擺動訊號中的目前位置資訊，因此足 以克服先前技術的缺點，提高DVD光碟片種類的正確判 斷率。 並且，進一步地，利用DVD-ROM沒有擺動訊號， 亦即其擺動訊號之大小振幅為零的特徵，本發明之另一實 200539114 13829twf.doc/〇〇6 把例還可以修改圖5之流程到如圖6所示，當步驟Μ)發 現峰對峰電壓值小於第—臨界值後，不立刻判斷其為 DVO+，而是再進行步驟518之判斷峰對峰電壓值是否大 於第二臨界值（小於第—臨界值並且可以是驅近於零，如 0·03伏特），若不小於則判斷為DVD+，而若小於便於 驟520判斷為DVD-ROM。 十雖然本發明已以較佳實施例揭露如上，然其並非用以 限=本發明’任何熟習此技藝者，在不麟本發明之精神 和範圍内，當可作些許之更動與潤飾，因此本發明之保謹 範圍當視_之ψ請專郷麟界定者為準。 【圖式簡單說明】 圖1為擺動訊號的來源示意圖。 圖2為DVD+的擺動訊號示意圖。 圖3為DVD、的擺動訊號示意圖。 =位多功能光碟種類判斷方法流程圖。 -實施_流程圖陳㈣功能辅_騎方法的 另一實施;出的數位多功能光碟種類判斷方法的 【圖式標記說明】 A、B、C、D:光碟機讀寫頭的四個區域 101:DVD光碟機的讀寫頭 102 : DVD光碟片上的轨道 200539114 13829twf.doc/006 201 ： 202 203 204 205 301 302 303 304 305 306 402 404 406 408 410 412 414 502 504 506 508 510 512 DVD+的擺動訊號 DVD+的擺動訊號内含的相變區 DVD+的擺動訊號的大小區間與峰對峰電壓值 DVD+的擺動訊號的最大持續值 DVD+的擺動訊號的最小持續值 DVD—的擺動訊號 DVD—的擺動訊號内含的凸紋預設孔 DVD—的擺動訊號的大小區間 DVD —的擺動訊號的峰對峰電壓值 DVD—的擺動訊號的最大持續值 DVD—的擺動訊號的最小持續值 設定DVD+使用的相關參數 是否讀取到目前位置？ DVD+ 設定DVD —使用的相關參數 是否讀取到目前位置？ DVD-Serving ϊϊΓ——A kind of digital multi-function disc type judgment method The shortcomings of Miscellaneous Technology Valley are prone to misjudgment and improve the correct judgment rate of DVD + and DVD films. The examples are:-Long-bit multi-function disc type to determine the number of errors, first set the relevant parameters, and then according to the set parameters; from: digital multi-function disc read-pan wobble signal (including a wobble can be read at the same time) Other signals), and adjust the "pre-③" standard value of the wobble signal. After correcting the size of the wobble signal, read the maximum and minimum duration values of the pan-swing heart tiger to obtain the peak-to-peak electricity willingness value (normally The ship turns the contact wire). Finally, the material voltage value = -preset critical value, then the type of the digital multi-function disc is judged as DVD-, and the type of the digital multi-function disc is judged as DvD + e. Of course, if the peak For a peak voltage value of zero or less than another critical tilt value, it can be judged that the type of this digital multi-function optical disc is DVD-ROM. [The actual step of the present invention [the actual method is-Wei Wei Xiang Wei Wei noodle surface judging method 'The main steps are : First set the DVD-related parameters, and then read the lion from the digital multi-wei disc, and adjust the size of the wobble signal to the default value. ·, Use the maximum and minimum values to retrieve the installation ^, Read the maximum continuous value of the wobble signal The minimum continuous value, and based on these two data, find the result of the peak-to-peak voltage ratio of the wobble signal after a number of digits.) Finally, according to the peak-to-to-to-the-value value Types of optical discs. The method for determining the types of digital multi-function optical discs proposed by the present invention is based on the magnitude of the peak-to-peak voltage value of the swinging δίΐ number in order to distinguish between the two types of digital multi-functions: DVD- and DVD +. The optical disc is not based on the current position information contained in the wobble signal, which is relied on in the prior art, so it is sufficient to overcome the shortcomings of the prior art and improve the correct judgment rate of the type of DVD discs. In order to allow the above and other contents and features of the present invention The advantages and advantages can be more clearly understood, and the preferred embodiments will be described in detail below in conjunction with the accompanying drawings. [Embodiments] The following describes the method for determining the type of a digital multi-function optical disc proposed by the present invention with an embodiment. ▲ The key of an embodiment of the present invention is to read the pan-sway signal (including the wobble signal and other signals that can be read together) and find its maximum continuous value (peak hold value) and minimum hold value, and then obtain the peak-to-peak voltage (peak_t〇-peak v〇ltage) of the swing signal (for example, between a maximum hold value and an adjacent minimum hold value) And the book is the result after analog to digital conversion), and according to the magnitude of the peak-to-peak voltage value to distinguish between DVD + and DVD — (even DVD_ROM). As for the peak-to-peak voltage value of these two DVDs Different, please refer to Figure 2 and Figure $. Figure 2 shows the DVD + pan wobble signal, which contains only one wobble signal. The maximum continuous value of this wobble signal is marked as 204 in the figure and the minimum performance value is shown in the figure. It is marked as 20.5 in the middle. The two continuous values are the upper and lower edges of the swing signal plus the peak value, and the peak-to-peak voltage value 203 is the maximum continuous value 204 minus the minimum continuous value 205. It is the large J interval of the wobble signal 201. Of course, for simplicity, the peak-to-bee voltage value 203 may be the difference between one of the uppermost edges and one of the lowermost edges of the adjacent 2005313? Π4 / 006. As for the wobble signal of DVD-shown in FIG. 3, it is more complicated. As shown in the figure, because the pan-wobble signal of DVD- includes both a wobble signal 301 and a land pre-pit 302 attached to the wobble signal 301, the maximum continuous value 305 is the convex pattern located above. The tip of the hole is preset, and the minimum duration 306 is at the tip of the embossed preset hole below. Because of this, the difference between the two continuous values, that is, the peak-to-peak voltage value of 304, will be larger than the size range 303 of the swing signal 301 itself. Of course, for simplicity, the peak-to-peak voltage value 203 may be a gap between an adjacent convex preset hole located above and a convex preset hole located below. As mentioned above, this embodiment is to distinguish between DVD + and DVD- according to the magnitude difference between the peak-to-peak voltage value 203 of DVD + and the peak-to-peak voltage value 304 of DVD-. Here, the use of DVD—the pan wobble signal will have embossed preset holes, and the DVD + pan wobble signal has no embossed preset holes, which can make DVD—and DVD + have a distinct difference in peak-to-peak voltage values, providing identification. Digital multi-disc type of pipe. In particular, in this embodiment, the size of the wobble signal in the pan wobble signal from different digital multi-function discs can be adjusted to a preset standard value, so as to eliminate the size difference caused by different digital discs, and also make the peak-to-peak The difference in voltage values is almost always due to the existence of the embossed preset holes, and it is obviously easier to distinguish DVD- and DVD + than the conventional technology. For a detailed process of another embodiment of the present invention, please refer to FIG. 5. First, assume that the unknown disc type is DVD—, so step 502 will set the relevant parameters used by DVD— 200539114 13829twf.doc / 006 Then step 504 will use the relevant parameters set in step 502 to read from the unknown disc Pan wobble signal; immediately after step 506, the size of the wobble signal in the pan wobble signal is adjusted to a standard value, which is intended to correct the size range of the wobble signal, so that different brands of optical discs (or even different optical disc drives can read ) Can use common criteria. After the wobble signal is corrected, step 508 reads the maximum and minimum duration values of the wobble signal. Then, in step 510, the peak-to-peak voltage value of the wobble signal is obtained based on the two continuous values. At this time, if the unknown disc is indeed DVD-1, the peak-to-peak voltage value will be larger than the standard value (such as 0.3 V) due to the effect of the embossed preset hole, as shown in Figure 3, otherwise the peak pair The peak voltage value is equal to the standard value, as shown in Figure 2. Therefore, step 512 determines whether the peak-to-peak voltage value is greater than a preset threshold value. If so, step 514 determines that the unknown disc type is DVD—, otherwise step 516 determines that the unknown disc type is DVD +. As can be seen from the above description, the method for determining the type of a digital multi-function optical disc proposed by the present invention is based on the peak-to-peak voltage value of the wobble signal to distinguish the two types of digital multi-function optical discs—DVD— and DVD +, which are not relying on the prior art. The current position information contained in the wobble signal is sufficient to overcome the shortcomings of the prior art and improve the correct judgment rate of DVD disc types. In addition, using the feature that the DVD-ROM does not have a wobble signal, that is, the magnitude and amplitude of the wobble signal are zero, another embodiment of the present invention 200539114 13829twf.doc / 〇〇6 The example can also modify the flow chart of FIG. 5 to As shown in FIG. 6, when step M) finds that the peak-to-peak voltage value is less than the first critical value, it is not immediately judged as DVO +, but then proceeds to step 518 to determine whether the peak-to-peak voltage value is greater than the second critical value ( Less than the first critical value and can be driven close to zero, such as 0. 03 volts), if it is not less than, it is judged as DVD +, and if it is less than 520, it is judged as DVD-ROM. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to be limited to the present invention. Anyone skilled in the art can make some modifications and decorations within the spirit and scope of the present invention. The pledged scope of the present invention should be treated as ψ, which is specifically defined by Lin. [Schematic description] Figure 1 is a schematic diagram of the source of the wobble signal. FIG. 2 is a schematic diagram of a wobble signal of a DVD +. Figure 3 is a schematic diagram of a wobble signal of a DVD. = Flow chart of the method for judging the type of multi-function disc. -Implementation_Flowchart Chen Yi Function Auxiliary_Another implementation of the riding method; [Schematic mark description] of the method for judging the type of digital multi-function disc A, B, C, D: Four areas of the optical disk drive read / write head 101: Read / write head of DVD player 102: Track on DVD disc 200539114 13829twf.doc / 006 201: 202 203 204 205 301 302 303 303 304 305 306 402 404 406 408 410 412 414 502 504 506 508 510 512 DVD + swing The phase change region of the wobble signal of the signal DVD + The range of the wobble signal and the peak-to-peak voltage value of the wobble signal of DVD + The maximum duration of the wobble signal of DVD + The minimum duration of the wobble signal of DVD—the wobble signal of DVD—the wobble signal of Built-in embossed preset hole DVD—the range of the wobble signal of the DVD—the peak-to-peak voltage value of the wobble signal of the DVD—the maximum duration of the wobble signal of the DVD—the minimum duration of the wobble signal of the DVD—settings related to the use of DVD + Does the parameter read to the current position? DVD + Set DVD —Relevant parameters used Read to current position? DVD-

DVD-ROM 設定DVD —使用的相關參數 讀取一擺動訊號 調整擺動訊號之大小至標準值 讀取擺動訊號之最大持續值與最小持續值 求得擺動訊號之峰對峰電壓值 峰對峰電壓值大於臨界值？ 12 2〇〇5mi 514 ： DVD-516 ：DVD+DVD-ROM setting DVD — Use the related parameters to read a wobble signal and adjust the size of the wobble signal to the standard value. Read the maximum and minimum continuous values of the wobble signal to obtain the peak-to-peak voltage value of the wobble signal. Greater than the threshold? 12 2005mi 514: DVD-516: DVD +

518 :峰對峰電壓值大於另一臨界值？ 520 ： DVD-ROM518: The peak-to-peak voltage value is greater than another critical value? 520: DVD-ROM

1313

Claims (1)

200539114 13829twf.doc/006 十、申請專利範圍： • 1.一種數位多功能光碟種類判斷方法，包括下列步 驟： （!)接收一泛擺動訊號，該泛擺動訊號至少包含 -擺動訊號，並可再包含在自職位多 動訊號時可以-併被讀取之訊號； (b)求得該泛擺動訊號之峰對峰電壓值；以及 功能光碟數位多 判斷利範圍第1項所述之方法’其+步鄉(〇係 綱該數位乡魏辆係為DVD-絲係為DVD+。 包括3:.如巾請專利翻第1顧述之方法，其中步驟⑷更 斷辞^ Ϊ該峰對峰電壓值大於—第—職臨界值，則判 功能光碟之種類為DVD—，否關斷該數位 夕力月b光碟之種類為DVD+。 包括4:·如申請專利範圍帛1項所述之方法，其中步驟(c)更 斷物該峰對峰電壓值小於一第二預設臨界值，則判 斷該f位多功能光碟之種類為誦麵。 申叫專利範圍第1項所述之方法，更包含在步驟 I、步―)之間’進行步驟(d): 調整該擺動訊號之大小至一預設標準值。 •申請專利範圍第5項所述之方法，其中該預設標 200539114 13829twf.doc/006 準約為0·3伏特。 7·如申請專利範圍第5項所述之方法，尚可將該泛擺 動汛號中之其它訊號依照該擺動訊號之調整比例，等比例 調整。 8·如申請專利範圍第1項所述之方法，步驟(b)更包 括· 讀取該擺動訊號之一最大持續值以及一最小持續 值；以及200539114 13829twf.doc / 006 10. Scope of patent application: 1. A method for judging the type of digital multi-function disc, including the following steps: (!) Receive a pan-oscillation signal, the pan-oscillation signal contains at least a -oscillation signal, and can be Contains the signals that can be-and read when the multi-motion signal from the post; (b) finds the peak-to-peak voltage value of the pan-oscillation signal; and the method described in item 1 of the functional disc digital multi-judgment range 'its + Bu Xiang (〇 The outline of this digital township is the DVD-Si line is the DVD +. Including 3: If the patent please refer to the method described in the first paragraph, where step ⑷ more broken words ^ Ϊ the peak-to-peak voltage If the value is greater than the -threshold threshold, the type of the functional disc is judged as DVD-, and whether the type of the digital Xi Liyue b disc is turned off is DVD +. Including 4: · As described in the scope of patent application 帛 1, In step (c), if the peak-to-peak voltage value of the broken object is less than a second preset threshold, it is judged that the type of the f-bit multi-function disc is a surface reading method. Contained between step I, step ― 'to perform step (d): Adjust the size of the wobble signal to a preset standard value. • The method described in item 5 of the scope of patent application, wherein the preset target 200539114 13829twf.doc / 006 must be approximately 0.3 volts. 7. According to the method described in item 5 of the scope of the patent application, the other signals in the pan-tilt flood signal can still be adjusted according to the proportion of the wobble signal adjustment. 8. The method as described in item 1 of the scope of patent application, step (b) further comprises: · reading one of the maximum duration value and a minimum duration value of the wobble signal; and 根據該最大持續值與該最小持續值之間的差距， 求得該擺動訊號之峰對峰電壓值。 处如申請專利範圍第丨項所述之方法，當該數位多功 能，碟為DVD-時，該峰對♦電壓值係為該擺動訊號中 ^-上方凸紋職孔與相臨之—下方凸紋賊孔之間的相 差信。Based on the difference between the maximum duration value and the minimum duration value, a peak-to-peak voltage value of the wobble signal is obtained. For the method described in item 丨 of the scope of patent application, when the digital is multifunctional and the disc is a DVD-, the peak value is the peak value of the oscillating signal ^-the upper convex hole and the adjacent one-the lower Contrast letters between embossed thieves. Λ 1〇.如申請專利範圍第1項所述之方法，當該數位多 j光碟為DVD+時，該峰對峰電壓值⑽讎動訊號中 最上緣與相鄰之一最下緣之間的相差值。 11.如申請專利範㈣1項所述之方法，更包含在步 驟⑷之前，先進行步驟(e): 設定相關參數，峨該數位多功能錢讀取該泛擺動 .η.如申請專利範圍第u項所述之方法，步雜(e〉更包 設定DVD-使㈣相關參數，以從_數位多功 15 oc/006 2〇〇53mi 能光碟讀取該擺動訊號。 • 13·種數位乡功能種類判斷方法，包括下列步 驟· θ)自數位多功能光碟求得一擺動訊號之峰對 峰電壓值；以及 7 (b)根據該峰對峰電壓值，在一第一類型與一 二類型之間判斷該數位多功能光碟之種類。 14·如申請專利範圍第13項所述之方法，其中該第一 類型為DVD—，且該第二類型為1)¥1；)+。 15·如申請專利範圍第13項所述之方法，步驟⑼更包 括： 若該峰對峰電壓值大於一預設臨界值，則判斷該 數位多功能光叙種縣該第—類型，爛觸該數位^ 功能光碟之種類為該第二類型。 16. 如申請專利範圍第13項所述之方法，步驟⑷更包 括： 設定該第一類型使用的相關參數； …自該數位多功能光碟讀取該擺動訊號，並調整該 擺動訊號之大小至一預設標準值； 讀取該擺動訊號之一最大持續值與一最小持續 值；和 1”^^最大制健該最小賴值，求得該擺動 祝5虎之峰對峰電壓值。 17. 如申請專利範圍第16項所述之方法，其中該預設 200539114 13829twf.doc/006 標準值約為0.3伏特。 18. 如申請專利範圍第16項所述之方法，該峰對峰電 壓值係為依附於該擺動訊號中之一上方凸紋預設孔與相臨 之一下方凸紋預設孔的相差值。 19. 如申請專利範圍第16項所述之方法，該峰對峰電 壓值係為該擺動訊號中一最上緣與相鄰之一最下緣的相差 值。Λ 1〇. According to the method described in item 1 of the scope of patent application, when the digital multi-j disc is DVD +, the peak-to-peak voltage value is between the uppermost edge of the signal and the lowermost edge of the adjacent one. a. 11. The method described in paragraph 1 of the patent application, further including step (e) before step :: Set the relevant parameters, such as the digital multifunctional money, to read the pan swing. Η. The method described in item u, step (e>) also includes setting DVD-related parameters to read the wobble signal from the _digital multi-function 15 oc / 006 2053mi energy disc. • 13 · Digital Township A method for determining a function type includes the following steps: θ) Obtaining a peak-to-peak voltage value of a wobble signal from a digital multi-function disc; and 7 (b) According to the peak-to-peak voltage value, in a first type and a one or two type Judge the type of the digital versatile disc between them. 14. The method according to item 13 of the scope of patent application, wherein the first type is DVD-, and the second type is 1) ¥ 1;) +. 15. The method as described in item 13 of the scope of patent application, step ⑼ further includes: if the peak-to-peak voltage value is greater than a preset threshold value, judging the first type of the digital multi-functional light seeding county, bad touch The type of the digital ^ function disc is the second type. 16. The method as described in item 13 of the scope of patent application, wherein step ⑷ further includes: setting relevant parameters used by the first type;… reading the wobble signal from the digital multi-function disc and adjusting the size of the wobble signal to A preset standard value; read one of the maximum duration value and a minimum duration value of the wobble signal; and 1 ”^^ the maximum control value and the minimum value, to obtain the peak-to-peak voltage value of the tiger 5 The method described in item 16 of the scope of patent application, wherein the preset 200539114 13829twf.doc / 006 standard value is about 0.3 volts. 18. The method described in item 16 of the scope of patent application, the peak-to-peak voltage value It is the phase difference between the upper embossed preset hole in one of the wobble signals and the lower embossed preset hole in the adjacent one. 19. The peak-to-peak voltage according to the method described in item 16 of the patent application range. The value is the difference between the uppermost edge of the wobble signal and the lowermost edge of the adjacent one. 1717
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US7995434B2 (en) 2003-10-31 2011-08-09 Tian Holdings, Llc Method and apparatus for generating absolute time in pregroove data
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US7746745B2 (en) 2004-05-25 2010-06-29 Ricky Chang Method for determining the type of digital versatile disc

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