丄训927 - 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種光碟機控制方法；尤指在光碟機在 燒錄功能方面的控制方法。 【先前技術】 由於電子化資訊時代的來臨，對於具有高容量之可攜式 • 數位儲存媒體之需求也與日俱增，早期普遍被使用之軟碟 • (fl〇PPy disk)所能提供之儲存容量已不敷需求。因此，具 . 有高儲存容量、便於攜帶等特性之光學儲存媒體及儲存裝 置便迅速地被廣泛使用，如光碟機（CD_R〇M dHve)、燒錄 機（CD-R drive，DVD-R driver)及 LD(Laser Disc)播放器 等等。 在上述之光學儲存媒體中，數位資料均是被記錄在一圓 盤狀之光碟片（Optical Disk)上，此種光碟上具有成同心 • 螺旋狀之資料執（1肘〇1'1^1:丨0111'1^〇1〇，數位資料即藉由在 資料轨上形成具有不同光學反差（Optical Contrast)性質 -之區段加以記錄。在資料執上讀取或寫入資料時，光碟機 .或燒賴會將光則補，並藉由光學讀寫頭（pick up head)之透鏡（丨⑽在資料執上投射及吸收光束⑴咖 beam)而進行資料之讀取或寫入。 在彔光儲存媒體（〇pHcal 脱以⑽），諸如光 碟（compact disk，CD)、可讀寫光碟（CD_RW)、數位影音 0608-A40501TWF2 5 1320927 光碟（digital versatile disk，DVD)、可讀寫數位影音 光碟（DVD-RW ’ DVD+RW，DVD-RAM)以及超級聲音光碟（super audio compact disk，SACD)時，若進行燒錄之光碟機被 碰撞或是被搖晃時，光碟機内之光學感測器可感測出讀寫 頭與光碟片上之資料執相對位置偏差，進而產生出循軌誤 差信號（Tracking Error，TE)或聚焦誤差信號（F〇cus丄 927 927 - IX, invention description: [Technical field of the invention] The present invention relates to a disc drive control method, and more particularly to a control method for an optical disc drive in a burn-in function. [Prior Art] Due to the advent of the electronic information age, the demand for portable digital storage media with high capacity is also increasing. The storage capacity that can be provided by the early popular floppy disk (fl〇PPy disk) has been Not enough demand. Therefore, optical storage media and storage devices with high storage capacity and portability are rapidly being widely used, such as CD-ROM (CD_R〇M dHve) and CD-R drive (DVD-R driver). ) and LD (Laser Disc) player and so on. In the above optical storage medium, the digital data is recorded on a disc-shaped optical disc having concentricity and spiral information (1 cubit 1'1^1). :丨0111'1^〇1〇, the digital data is recorded by forming segments with different optical contrasts on the data track. When reading or writing data on the data, the optical disk drive Or burnt light will make up the light, and read or write the data by the lens of the optical pickup head (丨(10) projecting on the data and absorbing the beam (1) coffee beam). Optical storage media (〇pHcal (10)), such as compact disk (CD), readable and writable CD (CD_RW), digital audio and video 0608-A40501TWF2 5 1320927 digital versatile disk (DVD), readable and wable digital audio and video disc (DVD-RW 'DVD+RW, DVD-RAM) and super audio compact disk (SACD), if the CD player that is being burned is bumped or shaken, the optical sensor in the CD player can be Sensing the data on the head and the disc Relative positional deviation, which in turn produces a tracking error (TE) or focus error signal (F〇cus
Error, FE) 〇般來說，循執誤差信號是來自於光冑^ 平的晃動，而聚焦誤差信號是來自垂直（上下）的 了避免晃動時燒錄到其他資料執，造成光碟片壞軌 光碟機會暫停燒錄。 但當欲燒錄之空白光碟片上有缺陷（defect)時 產生循軌縣錢或Μ誤差錢，因料致碑^ 台發生震動（祕)之情W酬停錢錄^ 上，先碟片上有些微缺陷仍繼續燒錄並不影響燒錄實 但若因光碟片缺陷而停止燒錄，則會延長燒 蝥 的時間。 化費 【發明内容】 為了辨別聚焦誤差信號及/ _動或是光碟片缺陷，本=== 之方法。 ’、差異 用以控制一讀寫碩是 本發明提出一種燒錄控制方法， 0608-A40501TWF2 6 1320927 ' 否將資料燒錄於一光碟片上。此燒錄控制方法包括：偵測 一燒錄狀態信號之振幅是否發生改變；以及當偵測到上述 燒錄狀態信號之振幅發生改變時，在一特定時間内，若一 射頻位準訊號在上述特定時間内振幅改變範圍小於上述特 定範圍，則判斷為系統震動，並發出一燒錄中斷信號。 - 在本發明的一實施例中，上述燒錄狀態信號可為聚焦 - 誤差信號或為循軌誤差信號。當上述聚焦誤差信號或循軌 • 誤差信號之振幅變化超過最大振幅10°/。以上（例如最大振幅 為1伏特時，振幅變化超過0. 1伏特，以下亦同）時，觀察 特定時間内上述射頻位準訊號之振幅是否亦變化大於或等 於最大振幅50%以上（例如射頻位準信號之最大振幅為2伏 特時，振幅變化超過1伏特，以下亦同）。若上述射頻位準 訊號之振幅變化大於或等於最大振幅50%以上，則判斷為 系統震動，並發出一燒錄中斷信號。 • 為使本發明之上述目的、特徵和優點能更明顯易懂，下 • 文特舉一較佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 • 第1圖顯示依據本發明實施例之燒錄機控制系統10之 示意圖。光碟片11具有複數螺旋狀之資料軌。微調器15 根據讀寫頭13之光學感測器131所傳回的訊號判斷讀寫頭 13所發出之雷射光與資料軌中心之位置偏差量，而產生循 0608-A40501TWF2 7 1320927 '執誤差仏Error Signal，TE)及聚焦誤差信號 (Focus Error Signal，FE)。射頻電路17亦根據光學感測 器131的輸出產生一射頻位準訊號RF UL，並將此射頻位 準訊號傳至控制器19。 光學感測器接收光碟片的反射光線後，經射頻放大器 轉換為射頻位準訊號。第2圖顯示光碟片與射頻位準訊號 ·之相對關係示意圖。若光碟片為正常無缺陷的情形下，此 _ 射頻位準訊號會維持—高準位（H)。但當讀寫頭讀/寫到一 缺陷（defect)區域時，由於光碟片無法正常反射雷射光， 故此射頻位準訊號之電壓會下降為低準位（L)。高低準位之 電壓可根據實驗求得，或根據預設電壓決定。 射頻位準訊號可為來自光學感測器131之感光元件主 要光束（main beam)或次要光束（side beam)。第3圖顯示 光學感測器内之感光元件内部主要光束與次要光束之配置 •示:¾圖°由A、B、C、D等四個感^^件接收到的反射光線 .稱為主要光束，而由E、F、G、H等四個感光元件接收到的 '反射光線則稱為次要光束。在本實施例中，以次要光束之 強度總和送入射頻電路Π以產生射頻位準訊號。在其他的 實&例中’亦可根據主要光束強度之總和送入射頻電路， 以產生射頻位準訊號。 H微調器可根據A、c兩感光元件接收到的反射光 0608-A40501TWF2 8 1320927 線強度之總和產生聚焦誤差信號，而根據B、c兩感光元件 接收到的反射光線強度之差產生循轨誤差信號。 第4a圖顯示燒錄模式下燒錄機台震動時，聚焦/循執 誤差信號與射頻位準訊號的時序圖。當燒錄系統1〇震動 (shock)，可能造成聚焦誤差或循轨誤差信號之位準上下改 變超過-變動$_，舉例來說，若振幅變化達聚焦循軌誤 •差信號之最大擺幅約10%以上。由於射頻位準訊號是反射 ·*線的總和’故不會隨著燒錄機台震動而改變位準。控制 器19根據射頻位準訊號判斷出此次聚焦或循軌誤差信號 的波動是來自燒錄機台震動，故送出燒錄中斷脈衝信號， 以通知讀寫頭暫停燒錄。由於燒錄機台震動時，讀寫頭可 能會將資料寫入其他的資料執，造成此光碟片在此處無法 .讀取，故必須於燒錄機台震動時暫停燒錄。在本實施例中， 當聚焦/循執誤差信號改變位準時，控制器㈣測在此5〇 擊微秒Us)内射頻位準訊號之位準變化是否超過一射頻位準 .信號最大擺幅之咖以上。若無的話，則控制器判斷為控 .制⑽㈣動。值得注意的是，上述之健誤差或猶執誤 ，號之位移、_時間等之數據祕定本實施例所提之 耗圍’其數值可隨各㈣統執行環境不同而調整。 第4b圖顯示燒錄模式下光碟片有缺陷時，聚焦/循執 誤差信號與射頻位準訊號的時序圖。當光碟片上有水漬、 0608-A40501TWF2 9 二、貼紙等缺陷造成聚焦誤差或循軌誤差信號之位準上 2移達聚焦循執誤差信號之最大擺鴨約⑽以上，射頻 準訊號之準位亦跟著下降。控㈣19根據射頻訊號之位 相斷出此次聚焦或循軌誤差信號的波動是來自光碟片缺 :’故不發出燒錄中斷脈衝信號’使讀寫頭繼續燒錄。在 0實施例中’當聚焦/減誤差信號改變位準若振幅變化達 A焦猶執誤差信號之最大擺幅約10%以上，控制器㈣測 在50微秒Us)内射頻位準訊號之位準變化是否超過娜以 ^。若有的話’則控制器判斷為光碟片缺陷。同樣的，上 ，之聚焦或循軌誤差信號之位移、偵測時間等之數據不限 ^本實施朗提之，其數值可隨各㈣統執行環境不 同而調整。由於本實_巾可依㈣焦縣或循執誤差信 破之位準以及射頻訊號之為準，故可判斷出系統目前之狀 ’兄為震動或是碟片缺陷。在本發明其他的實施例中，控制 器偵測射頻位準信號的時間長度可能為5〇微秒（^幻至2〇 亳秒（ms)之間。舉例來說，控制器偵測在2〇毫秒（ms)内射 頻位準訊號之位準變化是否超過5〇%以上。若有的話，則 控制器判斷為光碟片缺陷。 第5圖顯示依據本發明實施例之燒錄控制方法之流程 圖。首先在步驟S501中，偵測燒錄狀態信號是否發生改 變。在本實施例中，以聚焦誤差信號或循軌誤差信號來當 0608-A40501TWF2 10 1320927 r 做燒錄狀態信號，並以聚焦誤差或循執誤差信號之位準上 下偏移達聚焦循執誤差信號之最大擺幅約1〇%以上定義為 燒錄狀態信號改變。當偵測燒錄狀態信號有改變時，表示 此時系統發生震動或是欲燒錄的光碟片有缺陷。隨即觀察 射頻位準訊號在50//S内是否有變動，如步驟S5〇2。在本 實施例中，射頻位準訊號可為來感光元件接收之主要光束 或次要光束。 • 若在步驟％〇2中，射頻位準訊號在5〇/US有變動的話， 則進入到步驟S503。步驟中判斷聚焦誤差信號或循執誤差 4¾5虎之波動是由光碟片缺陷所引起的，故使光學讀寫頭繼 續燒錄。 • 若在步驟S502中’射頻位準訊號在5〇//S内沒有變動 的話’則進入到步驟S504。步驟S504判斷聚焦誤差信號 或循執誤差信號之波動是源於系統震動，於是發出燒錄中 鲁 斷脈衝信號，並使系統暫停燒錄。 . 在本發明中，可以判斷出聚焦/誤差循執訊號振動之成 因。若為系統震動，則可暫停燒錄；若為光碟片缺陷時， 由於此時暫停燒錄也不能改善光碟片上有缺陷之事實，故 缺陷不大時|發明提供之系統及方法可使燒錄系統繼續 燒錄’二縮短燒錄所需時間。雖然，燒錄資料於有缺陷之 碟片可月…成貝料某種程度上毀損，但輕微的資料毀損可 0608-A40501TWF2 11 1320927 v 由後端之錯誤更正碼處理器補回缺失之資料。 " 本發明雖以較佳實施例揭露如上，然其並非用以限定本 發明，任何熟習此項技藝者，在不脫離本發明之精神和範 圍内，當可做些許的更動與潤飾，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】 第1圖顯示依據本發明實施例之燒錄機控制系統之示 • 意圖。 第2圖顯示光碟片與射頻位準訊號之相對關係示意 圖。 第3圖顯示感光元件内部主要光束與次要光束之配置 . 示意圖。 第4a圖顯示燒錄模式下燒錄機台震動時，聚焦/循執 誤差信號與射頻位準訊號的時序圖。 • 第4b圖顯示燒錄模式下光碟片有缺陷時，聚焦/循執 誤差信號與射頻位準訊號的時序圖。 : 第5圖顯示依據本發明實施例之燒錄控制方法之流程 ' 圖。 【主要元件符號說明】 10〜燒錄機控制系統之示意圖；11〜光碟片； 13〜讀寫頭；131〜光學感測器； 0608-A40501TWF2 12 1320927 15〜微調器；TE〜循軌誤差信號； FE〜聚焦誤差信號；17〜射頻電路； RF LvL〜射頻位準訊號；19〜控制器； A、B、C、D、E、F、G、H〜感光元件0Error, FE) In general, the tracking error signal is from the sway of the diaphragm, and the focus error signal is from the vertical (up and down) to avoid the sloshing when burning other data, causing the bad track of the disc The disc opportunity to pause burning. However, when there is a defect on the blank disc that is to be burned, it will result in the tracking of the county money or the error money, because the news will cause the vibration of the monument (the secret) to stop the money on the record, on the first disc. Some micro-defects continue to burn and do not affect the burn-in. However, if the burn-in is stopped due to a defect in the disc, the burn time will be prolonged. [Explanation] In order to distinguish the focus error signal and / _ motion or optical disc defects, the method of ===. The difference is used to control a reading and writing master. The present invention proposes a burning control method, 0608-A40501TWF2 6 1320927 'No data is burned on a disc. The programming method includes: detecting whether a amplitude of a burned state signal changes; and detecting a change in the amplitude of the burned state signal, if a radio frequency level signal is in the above specified time If the amplitude change range is smaller than the above specific range within a certain time, it is judged that the system is vibrated, and a burn-in interrupt signal is issued. In an embodiment of the invention, the burn-in status signal may be a focus-error signal or a tracking error signal. When the above-mentioned focus error signal or tracking • the amplitude of the error signal changes by more than 10 ° / maximum amplitude. When the above (for example, when the amplitude is more than 1 volt, the amplitude changes more than 0.1 volt, the same applies hereinafter), it is observed whether the amplitude of the radio frequency level signal also changes by more than or equal to 50% of the maximum amplitude (for example, the radio frequency position). When the maximum amplitude of the quasi-signal is 2 volts, the amplitude changes by more than 1 volt, the same applies hereinafter. If the amplitude change of the radio frequency level signal is greater than or equal to 50% of the maximum amplitude, it is determined that the system is vibrating and a burn-in interrupt signal is issued. In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. A schematic diagram of a burner control system 10 in accordance with an embodiment of the present invention. The optical disk 11 has a plurality of helical data tracks. The trimmer 15 determines the positional deviation between the laser light emitted by the head 13 and the center of the data track according to the signal returned by the optical sensor 131 of the head 13 to generate an error of 0608-A40501TWF2 7 1320927. Error Signal, TE) and Focus Error Signal (FE). The RF circuit 17 also generates an RF level signal RF UL based on the output of the optical sensor 131 and transmits the RF level signal to the controller 19. The optical sensor receives the reflected light from the optical disc and converts it into an RF level signal via a radio frequency amplifier. Figure 2 shows the relative relationship between the optical disc and the RF level signal. If the disc is normal and defect-free, the _ RF level signal will remain at the high level (H). However, when the read/write head reads/writes to a defect area, since the optical disc cannot reflect the laser light normally, the voltage of the radio frequency level signal drops to a low level (L). The voltage at the high and low levels can be determined experimentally or based on a preset voltage. The radio frequency level signal can be the main beam or the side beam of the photosensitive element from the optical sensor 131. Figure 3 shows the configuration of the main beam and the secondary beam inside the photosensitive element in the optical sensor. • Display: 3⁄4Fig. Reflected light received by four sensing elements A, B, C, D, etc. The main beam, while the reflected light received by four photosensitive elements E, F, G, H, etc. is called the secondary beam. In this embodiment, the sum of the intensities of the secondary beams is fed into the RF circuit to generate a radio frequency level signal. In other real-amp; examples, the sum of the main beam intensities can also be sent to the RF circuit to generate an RF level signal. The H trimmer can generate a focus error signal according to the sum of the line intensities of the reflected light 0608-A40501TWF2 8 1320927 received by the two photosensitive elements A and c, and the tracking error is generated according to the difference between the reflected light intensity received by the two photosensitive elements B and c. signal. Figure 4a shows the timing diagram of the focus/circulation error signal and the RF level signal when the burner is vibrated in the programming mode. When the programming system 1 is shocked, it may cause the focus error or the tracking error signal to change up and down by more than - change $_, for example, if the amplitude changes to the maximum swing of the focus tracking error/difference signal About 10% or more. Since the RF level signal is the sum of the reflection * lines, it does not change the level as the table is shaken. The controller 19 determines, according to the radio frequency level signal, that the fluctuation of the focus or tracking error signal is from the vibration of the burning machine, so that the programming interrupt pulse signal is sent to notify the head to pause the burning. When the burning machine is vibrating, the head may write the data to other data, so that the disc cannot be read here, so it must be paused when the burning machine vibrates. In this embodiment, when the focus/circumvention error signal changes the level, the controller (4) measures whether the level change of the radio frequency level signal in the 5 sniper microseconds) exceeds a radio frequency level. The maximum swing of the signal More than coffee. If not, the controller judges that the control (10) (four) moves. It is worth noting that the above-mentioned data of the error or the erroneous error, the displacement of the number, the time of the _ time, etc., and the numerical value of the present embodiment can be adjusted according to the execution environment of each (four) system. Figure 4b shows the timing diagram of the focus/circumference error signal and the RF level signal when the disc is defective in the programming mode. When there is water stain on the disc, 0608-A40501TWF2 9 Second, the sticker and other defects cause the focus error or the tracking error signal level 2 to reach the maximum of the focus of the tracking error signal (10) or more, the radio frequency quasi-signal level Also followed by a decline. Control (4) 19 According to the position of the RF signal, the fluctuation of the focus or tracking error signal is caused by the lack of the optical disc: 'There is no burning interrupt pulse signal' to make the head continue to burn. In the embodiment 0, when the focus/subtraction error signal changes level, if the amplitude changes up to about 10% of the maximum swing of the A-focus error signal, the controller (4) measures the RF level signal within 50 microseconds. Whether the level change exceeds Na to ^. If any, the controller determines that the disc is defective. Similarly, the data of the displacement, detection time, etc. of the focus or tracking error signal are not limited. In this implementation, the value can be adjusted according to the implementation environment of each (4) system. Since the actual _ towel can be based on (4) Jiaoxian County or the level of error signal and the RF signal, it can be judged that the current state of the system is a vibration or a disc defect. In other embodiments of the present invention, the length of time that the controller detects the radio frequency level signal may be 5 〇 microseconds (^ illusion to 2 〇亳 seconds (ms). For example, the controller detects at 2 Whether the level change of the radio frequency level signal in the millisecond (ms) exceeds 5% or more. If any, the controller determines that the optical disc defect is present. FIG. 5 shows the burning control method according to an embodiment of the present invention. First, in step S501, it is detected whether the burn-in status signal is changed. In the embodiment, the focus error signal or the tracking error signal is used as the burn-in status signal by 0608-A40501TWF2 10 1320927 r, and The focus error or the offset error signal is shifted up and down to the maximum swing of the focus-cycle error signal. About 1〇% or more is defined as the burn-in status signal change. When the detection burn-in status signal changes, it indicates that this time The system is vibrating or the disc to be burned is defective. Then observe whether the RF level signal changes within 50//S, as in step S5〇2. In this embodiment, the RF level signal can be used for sensitization. Main light received by the component Or a secondary beam. • If the RF level signal changes in 5〇/US in step %〇2, proceed to step S503. In the step, determine the focus error signal or the tracking error 43⁄45 tiger fluctuation is caused by the disc. If the chip defect is caused, the optical head continues to be burned. • If the 'RF level signal does not change within 5 〇//S' in step S502, the process proceeds to step S504. Step S504 determines the focus error signal. Or the fluctuation of the tracking error signal is caused by the system vibration, so the burst signal is output in the programming, and the system is paused for burning. In the present invention, the cause of the focus/error circulation signal vibration can be judged. In the case of system vibration, the programming can be paused; if the disc is defective, the fact that the disc is not burned at this time cannot improve the defect on the disc, so the defect is not large. The system and method provided by the invention can make the burning system Continue to burn the 'second time to shorten the burning time. Although, burning the data on the defective disc can be ... the shell material is damaged to some extent, but the slight data damage can be 0608-A40501TWF2 11 132092 7 v is backed up by the error correcting code processor of the back end. The present invention has been disclosed in the preferred embodiment as above, but it is not intended to limit the present invention, and anyone skilled in the art can The scope of protection of the present invention is defined by the scope of the appended claims. The first embodiment shows the implementation according to the present invention. Example of the burner control system. Intention. Figure 2 shows the relative relationship between the optical disc and the RF level signal. Figure 3 shows the configuration of the main beam and the secondary beam inside the photosensitive element. Fig. 4a shows Timing diagram of focus/cycle error signal and RF level signal when the machine is vibrating in the programming mode. • Figure 4b shows the timing diagram of the focus/circumference error signal and the RF level signal when the disc is defective in the programming mode. Fig. 5 is a view showing the flow of the burning control method according to an embodiment of the present invention. [Main component symbol description] 10~ schematic diagram of the burner control system; 11~optical disc; 13~ read/write head; 131~ optical sensor; 0608-A40501TWF2 12 1320927 15~ trimmer; TE~ tracking error signal ; FE ~ focus error signal; 17 ~ RF circuit; RF LvL ~ RF level signal; 19 ~ controller; A, B, C, D, E, F, G, H ~ photosensitive element 0
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