1261241 丑、發明說明（1) 【發明所屬之技術領域】 ‘ 本發明有關一種光碟片資料軌距之判別方法，尤其關 於利用資料傳輸頻率值或軸承轉速值量測光碟片軌距的光 碟片資料執距之判別方法。 【先前技術】 有些傳統的光碟片將標準執距縮小以增加光碟片記憶 容量，為避免光碟機誤判或無法判讀光碟片的種類產生才4 •片。傳統量測光碟片軌距的方法是對未知軌距的光碟片 (假設執距為d )，讀取一固定資料段長度X，則讀取資料面 積A = x ·(!。由另一面看，如果固定資料段長度X起點的半 徑為Rs，終點的半徑為Re，則固定資料段長度X之圓環面 積另可表示為資料面積A=7T(Rs2-Re2)，由前述兩相等面積 A，推得軌距d = 7Γ ( R s2 - R e2 ) / X。然而根據所得公式5必須偵 測起點半徑Rs和終點半徑Re才可計算出光碟片執距d。目 前採用偵測半徑的方法係利用旋轉碟片一圈，偵測碟片資 料框架數換算圓周長，再換算成所對應半徑長度。這種方 法的缺點是半徑長度不易精確且便利取得，因為資料框架 ^數正確性有賴於該執整段資料解碼之穩定度。而且執距的 取得需要經過一連牟的換算，各次轉換的精確度皆會影響 到軌距的誤差程度與運算複雜度。因此，如何簡化光碟片 執距的量測，讓結果更為直接準確，同時也更方便取得， 將是光碟機業者念茲在茲所盼望的。 【發明内容】 本發明之目的在提供一種資料軌距之判別方法，藉由1261241 ugly, invention description (1) [Technical field to which the invention pertains] The present invention relates to a method for discriminating the track distance of an optical disc, and more particularly to an optical disc data using a data transmission frequency value or a bearing rotational speed value to measure a track gauge The method of discriminating the distance. [Prior Art] Some conventional optical discs reduce the standard distance to increase the memory capacity of the optical disc, in order to avoid the misjudgment of the optical disc drive or the inability to interpret the type of the optical disc. The traditional method of measuring the track gauge of an optical disc is to disco a disc with an unknown gauge (assuming a distance d), and read a fixed data segment length X, then read the data area A = x · (!. Viewed from the other side If the radius of the starting point length X of the fixed data segment is Rs and the radius of the ending point is Re, the ring area of the length X of the fixed data segment can be expressed as the data area A=7T (Rs2-Re2), and the two equal areas A are , the gauge d = 7 Γ ( R s2 - R e2 ) / X. However, according to the formula 5, the starting radius Rs and the ending radius Re must be detected to calculate the disc distance d. Currently, the method of detecting the radius is adopted. The system uses a rotating disc to detect the number of disc data frames and converts the circumference length into a corresponding radius length. The disadvantage of this method is that the radius length is not easy and accurate, because the correctness of the data frame depends on The stability of the decoding of the data in the segment is determined. The acquisition of the distance needs to be converted through a series of conversions, and the accuracy of each conversion will affect the error degree and computational complexity of the gauge. Therefore, how to simplify the disc distance Measurement, let the results be more In order to be directly accurate and at the same time more convenient to obtain, it will be expected by the optical disk player. [Invention] The object of the present invention is to provide a method for discriminating data track distance by
第6頁 1261241 茗、發明說明（2) --------- 建立一資料傳輪頻 的資料傳輸頻率佶丰數據或軸承轉速值數據，量娜光碟 算出該光碟片的資承轉速值，配合内插法或近似、去 本發明另；=以轉換才能得到軌趣的：：起點半 定線速率下，量測光供一種資料軌距之判別方法， 本發光碟片軌距。 口轴承轉速值 定角速率下’量二s J 3:種資料軌距之判別方法，在 輸頻率數據，計算料傳輸頻率後，配合資料傳 為了達到前轨距。 別方法，包括下列步的目2，一種光碟片資料軌距之判 下=測裂置，分別在定角的資料鎖相迴 里测一光碟片預 弋線速率的狀況 承轉速值，即特、疋貝科&位置的資料傳 據，以θ I特徵值，接著查詢特徵值盥ί輪頻率值或軸 =配&内插法或近似法=磔軚距的關係數 1錢磓方式】 '"出先碟片軌距。 _ 有關本發明A ;查4、U、〇·、 功效，兹舉較佳實施例，采用气技術手段及其 圖。本發明光二;=:明如下。 如m先碟片la的執距為dl ，内含 # #〜輕料面積示意 為C中的長度X的資料段⑴，；；=二資料段"(展開 ! 1 即光碟規格書所制定之資枓F向趑點半徑1 2長度 11终點半徑u長度聰，資；緣：經，而資料段 ------ 貧料段面積A 1。 1261241 丑、發明說明（3) "^-- 由於資料段1 1面積A1為資料段丨丨的長度χ乘上光碟片軌距 il，即Al=x。dl。同時，若是以光碟片的資料段丨丨起點半 徑長度Rs與終點半徑長度R1作計算，則資料段面積ai為冗 (Rl2-Rs2) ’ 即面積 Al^x8 dl=7(Ri2_Rs2)， 得到執距dl= ττ (Rl2-Rs2)/ χ。同理，第11}圖中，光碟片η 的軌距為d2，内含一長度X的資料段16(展開如圖 X的資料段16)，該資料段16起點半徑17長度為Rs，即 I規格書所制定之資料區内緣半徑，而資料段16终點卩 長度為R2，形成一資料段面積A2，其資料段積a" +杬8 =TT(R22-RS2)， 償“十 d2 得到執距d2= ;r(R22-Rs2)/ x。 因此，就光碟片1 a與光碟片j b相比較，當兩組 的資料段1丨與16長度同為X，且起點半徑“同為光碟先業片 書所制定之資料區内緣半徑時，因為資料段面積“為1袼 dl) ’貧料段面積A2為（X . d2)，若是執距。大於軌^ · 則資料段面積A1大於資料段面積Α2， α2 5 =川12-Rs2)> π⑽-Rs2)。由於資料段"糾起 >12與17長度同為。，推得R1〉R2 ;所以不同資料執距+趣 ，碟片在相同資料段X位置處有不同半徑，大軌距的 對應較大的半徑，小執距的光碟片對應較小的半押堞 本發明的第一實施例，係利用光碟機在定角速^。 constant Angular Velocity，CAV)的運轉模式下 二Z 2碟機以相同轉速轉動光碟片，軌距較大 ，也 问-貝料段X位置處所對應之半徑較長，具有較大的線公在Page 6 1126241 茗, invention description (2) --------- Establish a data transmission frequency data transmission frequency 佶feng data or bearing speed value data, the amount of the film to calculate the speed of the optical disc Value, with interpolation or approximation, go to the invention; = can be converted to get the track:: at the starting half-sizing rate, the measuring light is used to determine the method of the track gauge, the track distance of the light plate. The bearing speed value of the mouth bearing is determined by the angle s J 3: the method for judging the track gauge of the data. After the frequency data is calculated and the material transmission frequency is calculated, the data is transmitted to achieve the front gauge. Another method, including the following steps, the second step, a disc data track gauge = measurement split, respectively, in the fixed-angle data lock phase back to measure the condition of the disc pre-twist rate rate, that is, Data of the position of the 疋 科 & 位置 , , 以 θ 特征 特征 特征 特征 特征 特征 特征 特征 特征 特征 特征 特征 特征 特征 特征 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 频率 频率 频率 轮 轮 轮 轮 频率 频率 频率 频率 轮 轮 轮】 '" Out of the disc track. _ related to the present invention A; check 4, U, 〇 ·, efficacy, the preferred embodiment, using gas technology and its diagram. The light of the present invention; =: as clearly as follows. For example, if the distance of the first disc piece la is dl, the area containing the ##~ light material is indicated as the data length of the length X in C (1),; == two data segments "(Expand! 1 is the specification of the optical disc The 枓F 趑 半径 radius 1 2 length 11 end radius u length Cong, capital; edge: Jing, and data section ------ poor material section area A 1. 1261241 ugly, invention description (3) " ;^-- Since the data segment 1 1 area A1 is the length of the data segment χ multiplied by the optical disk gauge il, ie Al=x.dl. At the same time, if the data segment of the optical disk is the starting radius length Rs and When the end radius length R1 is calculated, the data segment area ai is redundant (Rl2-Rs2)', that is, the area Al^x8 dl=7(Ri2_Rs2), and the distance dl= ττ (Rl2-Rs2)/ 得到 is obtained. Similarly, the first 11} In the figure, the track of the optical disc η is d2, and contains a data segment 16 of length X (expanding the data segment 16 as shown in FIG. X), and the starting radius 17 of the data segment 16 is Rs, that is, the I specification book. The radius of the data area is defined, and the length of the data segment 16 is R2, forming a data segment area A2, and its data segment product a" +杬8 = TT(R22-RS2), paying "10 d2 to get the distance D2= ;r(R22-Rs2)/ x Therefore, when the optical disc 1 a is compared with the optical disc jb, when the data segments 1 丨 and 16 of the two groups are the same X, and the starting radius is the same as the radius of the data area defined by the optical disc first book Because the area of the data segment is “1袼dl”, the area of the poor material section A2 is (X.d2), if it is the distance. If it is larger than the rail ^ · the area of the data section A1 is larger than the area of the data section Α2, α2 5 = Chuan 12-Rs2 )> π(10)-Rs2). Since the data segment "correction>12 is the same as the length of 17, the R1>R2 is derived; therefore, the different data is distance + interesting, and the disc has different positions in the same data segment X position. Radius, large gauge corresponding to a larger radius, small-distance optical disc corresponding to a smaller half-beat. The first embodiment of the present invention utilizes an optical disc at a constant angular velocity. Constant Angular Velocity (CAV) In the operation mode, the two Z 2 disc drives rotate the disc at the same speed, and the gauge distance is large. Also, the radius corresponding to the X position of the block is longer, and the line is larger.
第8頁 1261241 丑、發明說明（4) ,。由於光碟機讀取頭 " ^ 1年鎖相迴路會產生與讀取=所f光碟資料刻錄訊號時，資 。光碟機單位時間碟資料刻錄訊號同 2早位％間讀取的光碟片弧、的貝料刻錄訊號代表光碟 點的線速率，其線逮率二、’，時也代表光碟片在被讀 二值而求得。因此，其頻率=1测該位置的資料傳輸頻 =。所以，利用一些已知 =2小，可反應出線速率變 枓段X位置處，在定角 =的光碟片，於一預定相同資 $輪頻率值’如圖2所示，、制AV )模式下，可記錄其資料 輪頻率數據。 衣成以軌距值做索引的資料傳 未知執距的光碟片 值，即定角速率下的資^ =二測預定資料段义位置之特徵 傳輸頻率對應的數據，杳=頻率值F，由執距值及資料 插法或近似法即可驊:珣資料傳輪頻率數據，再配合内 請參考第3圖，又本于/執距大小D。 步驟21 I步驟22 步驟23 步驟2 4 開始光碟機運作 進仃定角速率運動； 石貝取頭3北勤$ ^ 利用資料鎖相。進行偵測的資料段x位置； 位置的資料傳輸頻率=迴路偵測預定進行偵測的資料段X 步驟2 5 :將步驟2 4 〜， 輸頻率數據相比侍到的資料傳輸頻率值與一個資料傳 步驟2 6 :結束 乂’利用内插法或近似法獲得資料軌距； 距流程圖，其步驟說明、如^下例之等角速率下量測光碟片執 第9頁 1261241 五、發明說明（5) -於頻=攄本Γ:;由已知軌距光碟片所建立的-資料傳 二木下，接供1斤且碟機具有的資料鎖相迴路，在不增加 該光碟片軌距。且資方法，以内插法與近似法計算出 資料框架數，但是運t鎖相迴路的精確度不亞於偵測碟片 述所建立的一資料傳雜度與成本卻非常低。同理，前 軌距做成列表，以内j率數據，亦可以資料傳輸頻率對 • 彻的第二實施例與= = 該光碟片軌距。Page 8 1261241 Ugly, invention description (4),. Since the CD player read head " ^ 1 year phase-locked loop will generate and read = the f-disk data burning signal. The CD-ROM data recorded by the CD-ROM unit per unit time is the same as that of the 2nd position. The disc recording signal represents the line rate of the disc point. The line capture rate is 2, ', which also means the disc is being read. Find the value. Therefore, its frequency = 1 measures the data transmission frequency of the position =. Therefore, using some known = 2 small, can reflect the line rate change in the X position, in the fixed angle = the disc, in a predetermined same capital $ round frequency value ' as shown in Figure 2, AV) In mode, its data wheel frequency data can be recorded. The data indexed by the track value is transmitted to the disc value of the unknown distance, that is, the data corresponding to the characteristic transmission frequency of the fixed data rate at the fixed angular rate, 杳 = frequency value F, by The distance value and the data interpolation method or approximation method can be used: 珣 data transmission frequency data, please refer to the third figure, and the distance/D distance. Step 21 I Step 22 Step 23 Step 2 4 Start the operation of the CD player. Enter the fixed angular rate motion; Shibei take the head 3 Beiqin $ ^ Use data lock phase. Data segment x position for detection; data transmission frequency for position = loop detection for data segment scheduled to be detected X Step 2 5: Step 2 4 ~, the frequency data is compared with the data transmission frequency value of the service Data transmission step 2 6: End 乂 'Using interpolation or approximation to obtain the data gauge distance; from the flow chart, the description of the steps, such as the following example, the isotactic rate measurement of the optical disc, page 9 12612241 V. Invention Description (5) - Yu frequency = 摅本Γ:; established by the known gauge optical disc - data transmission under the second wood, connected to 1 kg and the data lock phase loop of the disc player, without increasing the disc track distance. In addition, the number of data frames is calculated by interpolation and approximation, but the accuracy of the phase-locked loop is as low as that of the data collected by the disc. Similarly, the front gauge is made into a list, and the data is transmitted within the j rate. It is also possible to transmit the frequency of the data to the second embodiment and == the disc track.
Lmiar Velocity, CLV ) (C-stant ^的轉速轉動光碟片，讓光碟片的每―^是光碟機以 的線速率，則同資料段貝枓處具有相同 、測衣置係利用電磁感應或光路明暗方式，光碟機轉速 疋轉一圈會發出預定複數個脈衝訊號，萨旦光碟機軸承 1承轉連值來反應角速率變化情形。因上，^，則出光碟機 二已知軌距的光碟片，於一預定相 所不， ς :，复速率（CLV)模式下，分別記錄其=位置 ►值衣成以軌距值做索引的軸承轉速值數據。承轉逮 未知執距的光碟片藉由量測預定資料段 即定線速率下的軸承轉速值β，由執距值 之特徵 =應的數據，查詢軸承轉速值，再配合 4承轉逮 可獲得其執距大小D。 插去或近似法即 參考第5圖，本發明之等線速率下量測光^ H ^ L %圖，其步驟說明如下： 先樂片軌距Lmiar Velocity, CLV ) (C-stant ^ rotates the disc, so that each disc of the disc is at the line rate of the disc, the same as the data section, the measuring device is made of electromagnetic induction or optical path. In the light and dark mode, a predetermined number of pulse signals will be emitted when the speed of the optical disk drive is rotated one turn, and the bearing value of the Sadan optical disk drive 1 is converted to reflect the angular rate change. Because of the above, the optical disk drive has two known gauges. The disc is not in a predetermined phase, ς :, in the multi-rate (CLV) mode, the bearing speed value data of the = position ► value is indexed by the gauge value. The optical disc of the unknown distance is captured. By measuring the predetermined data segment, that is, the bearing rotational speed value β at the linear velocity, the characteristic of the distance value = the data to be inquired, the bearing rotational speed value is queried, and the bearing distance D can be obtained by matching with the four bearing. The de-or approximation method refers to FIG. 5, and the isoline rate measurement of the present invention is performed by measuring the H ^ L % graph. The steps are as follows:
第10頁 1261241 玉、發明說明（6) 步驟3 1 :開始 ‘步驟3 2 :光碟 步驟3 3 :讀取 步驟3 4 :利用 值，等同於偵 步驟3 5 :將步 列表相比較， I步驟3 6 :結束 因此，本 速债測裝置， 料鎖相迴路的 算複雜度與成 的一轴承轉速 速，可以用内 一些非規定執 研發人員得以 明著實具備發 性，故依法提 > 以上所述 例，本發明之 做的任何變更 請專利之範圍 光碟機運作； 機進行定線速率運動； 頭跳執至預定資料段X位置； 轉速偵測裝置偵測預定資料位置的軸承轉速 測該位置的角速率； 驟3 4所得到的軸承轉速值與一個軸承轉速值 利用内插法或近似法獲得資料軌距； 〇 實施例利用光碟機必備的資料鎖相迴路和轉 在不增加成本下，提供一簡易判別方法。資 精確度不亞於偵測碟片資料框架數，但是運 本卻非常低。也藉由已知軌距光碟片所建立 值列表，配合量測未知軌距光碟片的軸承轉 插法與近似法計算出該光碟片軌距。在面臨 距碟片，本發明提供一種快速判片機制5讓 採用本方法提升此特殊片之效能。因此本發 明專利所要求的新穎性、進步性與產業利用 出申請。 者5僅為用以方便說明本發明之較佳實施 範圍不限於該等較佳實施例5凡依本發明所 5於不脫離本發明之精神下，皆屬本發明申Page 10 1126241 Jade, invention description (6) Step 3 1 : Start 'Step 3 2 : Disc Step 3 3 : Read Step 3 4 : Use value, equivalent to Detect step 3 5 : Compare step list, I step 3 6 : The end, therefore, the speed of the debt measuring device, the calculation complexity of the material phase-locked loop and the speed of a bearing, can be used by some non-regulatory developers to be clearly aware of the nature, so according to the law In the above example, any change made by the present invention requires the operation of the optical disk drive; the machine performs the linear velocity movement; the head jumps to the predetermined data segment X position; and the rotational speed detecting device detects the bearing rotational speed of the predetermined data position. The angular velocity of the position; the bearing rotational speed value obtained in step 3 4 and the bearing rotational speed value are obtained by interpolation or approximation to obtain the data gauge distance; 〇 the embodiment utilizes the necessary data phase-locked loop of the optical disk drive and rotates without increasing the cost. , providing a simple method of identification. The accuracy is no less accurate than detecting the number of disc data frames, but the cost is very low. The track gauge of the disc is also calculated by the bearing interpolation method and the approximation method for measuring the track of the unknown track disc by the value list established by the known track gauge disc. In the case of facing discs, the present invention provides a fast discriminating mechanism 5 which allows the method to improve the performance of the special strip. Therefore, the novelty, advancement and industrial use required by the patent of the present invention apply. The present invention is not limited to the preferred embodiments of the present invention.
第11頁 1261241 圖式簡單說明 【圖式簡單說明】 •第 1 圖為 本 發 明 光 碟 片 執 距 與 資料 面 積 不 意 圖 〇 第 2 圖為 本 發 明 第 — 實 施 例 軌 距值 及 資 料 傳 輸 頻 率 之 對 應 數 據 圖 〇 第 3 圖為 本 發 明 第 實 施 例 之 定角 速 度 下 量 測 光 碟 片 執 距 流 程 圖 〇 第 4 圖本 發 明 第 二 實 施 例 軌 距 值及 抽 承 轉 速 之 對 應 數 據 圖 〇 第 5 圖為 本 發 明 之 定 線 速 度 下 量測 光 碟 片 軌 距 流 程 圖 〇 [ 主要元件符號說明】 la lb 光碟片 1 卜1 6 資 料 段 12 17 資 料 段 起 點 半 徑 1 3、1 8 資 料 段 終 點 半 徑 步 驟21 開 始 步 驟2 2 定 角 速 率 運 動 步 驟2 3 跳 執 至 預 定 資 料 段X位置 步 驟2 4 資 料 鎖 相 迴 路 偵 測 資 料傳 輸 頻 率 值 步 驟2 5 查 詢 資 料 傳 輸 頻 率 列 表； 利 用 内 插 或 近 似 法 獲 得 資 料 執 距 步 驟2 6 結 束 步 驟31 開 始 步 驟3 2 定 線 速 率 運 動 步 驟3 3 跳 執 至 預 定 資 料 段 X位置 步 驟3 4 轉 速 偵 測 裝 置 得 出 軸 承轉 速 值 步 驟3 5 查 詢 轴 承 轉 速 值 列 表 ;利 用 内 插 或 近 似 法 獲 得 資Page 111261241 Brief description of the drawing [Simple description of the drawing] • The first drawing is not intended for the disc position and data area of the present invention. FIG. 2 is the correspondence between the gauge value and the data transmission frequency of the first embodiment of the present invention. FIG. 3 is a flow chart of the distance measurement of the optical measuring disc at the fixed angular velocity according to the first embodiment of the present invention. FIG. 4 is a diagram showing the corresponding data of the gauge value and the drawing speed of the second embodiment of the present invention. Flow chart of measuring optical disc gauge at the line speed of the present invention 〇 [Main component symbol description] la lb Optical disc 1 Bu 1 6 Data segment 12 17 Data segment starting radius 1 3, 1 8 Data segment end radius Step 21 Start Step 2 2 Fixed-angle rate motion step 2 3 Jump to the predetermined data segment X position Step 2 4 Data phase-locked loop detection data Transmit frequency value Step 2 5 Query data transmission frequency list; Obtain data distance by interpolation or approximation Step 2 6 End step 31 Start step 3 2 Alignment rate movement step 3 3 Jump to the predetermined data segment X position Step 3 4 The speed detecting device obtains the bearing speed value. Step 3 5 Query the bearing speed value list; use the interpolation or approximation method to obtain the capital
第12頁 1261241 圖式簡單說明 料執距 步驟3 6 結束Page 12 1261241 Simple description of the material Material distance Step 3 6 End
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