TWI251226B - Adaptive writing method for high-density optical recording apparatus and circuit thereof - Google Patents
Adaptive writing method for high-density optical recording apparatus and circuit thereof Download PDFInfo
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1251226 五、發明說明ο) 發明背景 【發明所屬之技術領域】 本發明係有關於一種適合使兩於高密度光學記錄裝置 的寫入方法和電路,更特別的,有關於一種適合用於使光 源之光能理想化的寫入方法,舉例言之,如雷射二極體, 可適用於記錄裝置之特性和電路。 【先前技術】 由於多媒體時代需要高容量記錄媒體,光學記錄系統 使兩高容量記錄媒體’正如磁性光碟裝置(Μ〇D D )或 使用隨機存取記憶體之數位多用途磁碟裝置(D V D — R AM),都已被廣泛使用。因為記錄密度增加,所以光學 記錄系統要求理想化及高精密度的狀態。一般言之,伴隨 著記錄密度的增加,在資料定義域中的暫時波動(歸因於 在下文中提及的『突波』)也增加。因此,為了達成高密 度的記錄’將突波減到最小是非常重要的。 照慣例,一次寫入脈衝的形成詳述在表示於圖1 ( b ) 的DVD — RAM格式手冊中,關於輸入NRZI (NO N — Return to Zero Inversion 譯為:對零點反轉無反射)的資料有3 T,5 T和1 1 T (T代表波段時序週期)的標示區,表示在圖1 ( a )中。 在这兒’ N R Z I貧料被區分為標不區和空白區。空白區 表示位在複寫的抹除能階中。所有標示區之一次寫入脈衝 的波形等於或大於3T的標示區,也就是說,3T,4T ,…1 1 T和1 4 T被包含在一個第一次脈衝,一個最後BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing method and circuit suitable for two high-density optical recording devices, and more particularly to a suitable light source. The ideal method of writing light, for example, a laser diode, can be applied to the characteristics and circuits of a recording device. [Prior Art] Since the multimedia era requires high-capacity recording media, the optical recording system enables two high-capacity recording media 'like a magnetic optical disk device (Μ〇DD) or a digital multi-purpose disk device using a random access memory (DVD-R). AM) has been widely used. Since the recording density is increased, the optical recording system requires an idealized and high-precision state. In general, as the recording density increases, temporary fluctuations in the data definition domain (due to the "surge" mentioned below) also increase. Therefore, it is very important to minimize the glitch in order to achieve a high density record. Conventionally, the formation of a write pulse is detailed in the DVD-RAM format manual shown in Figure 1 (b), regarding the input NRZI (NO N - Return to Zero Inversion) There are 3 T, 5 T and 1 1 T (T stands for the band timing period), which is indicated in Figure 1 (a). Here, the 'N R Z I poor material is divided into a standard area and a blank area. The blank area indicates that the bit is in the erasing erase level. The waveform of one write pulse of all the marked areas is equal to or larger than the marked area of 3T, that is, 3T, 4T, ... 1 1 T and 1 4 T are included in one first pulse, one last
1251226 ------ 五 '發明說明(2) 脈衝和一個多脈衝序列中 的脈衝數是根據標示區i在這兒,只有在多脈衝序列中 換句話說,寫入听2小而可變的。 圖1 ( c),即尖峰能量、或^波形被包含在一個讀取能量( 量或抹除能量(圖i ( d f入能量(圖1 ( d))和偏倚能 信號表示在圖丄C, D的組合。在這兒,相關的能量 。 和1 E中都是低電位動作的信號 寫入脈衝的波形和根 AM產生的規袼相同。》-代2· 6GB DVd〜r D V D - R a M的賴格,T說,根據第-代2 . 6 G B 一次脈衝,一個冬晰徐良寫入脈衝的波形被包含在—個第 m ^ V 4L ^ 、衝序列和一個最後脈衝中。雖然第一 ^ 升邊緣或最後脈衝的下降邊緣可以從一個領先 的區域中被讀取,但是適合的寫入是不可能的因為寫入脈 衝是被固定不變的。 因而’當一次寫入動作藉由形成一次寫入脈衝表示如 圖1 B而被執行時,嚴重的熱干擾可能引起相位的向後或 向前相關於根據輪入N R Z J資料的標示區。換句話說, 當一個標示區是長的及一個空白區是短的或不良的傾斜時 ,突波更加嚴重。這是降低系統效率的一個主要原因。同 樣的,這也使得將此系統應用到高密度D V D — R A M s 變得不可能,舉例言之,如第二代4 * 7 G B D v D ~ R A M s。 【發明内容】 為解決上述問題,這是本發明的一個目的’提供一個1251226 ------ Five 'invention description (2) The number of pulses in a pulse and a multi-pulse sequence is based on the labeled area i here, only in the multi-pulse sequence, in other words, the write is small and variable of. Figure 1 (c), that is, the peak energy, or ^ waveform is included in a reading energy (quantity or erase energy (Figure i (df into energy (Figure 1 (d)) and bias energy signal is shown in Figure C, The combination of D. Here, the related energy. The waveform of the signal write pulse that is low-potential action in 1 E is the same as that generated by the root AM." - 2 GB 6 DVd~r DVD - R a M Reig, T said that according to the first-generation 2. 6 GB pulse, the waveform of a winter-sweet Xuliang write pulse is included in the -m ^ V 4L ^, the rush sequence and a last pulse. A falling edge or a falling edge of the last pulse can be read from a leading region, but suitable writing is not possible because the write pulse is fixed. Thus, when a write operation is performed by When a write pulse is formed to be performed as shown in Fig. 1 B, severe thermal interference may cause the backward or forward phase of the phase to be related to the marked area according to the rounding of the NRZJ data. In other words, when a marked area is long and When a blank area is short or bad, the glitch is more serious This is one of the main reasons for reducing system efficiency. Similarly, this makes it impossible to apply this system to high-density DVD-RAMs, for example, the second generation 4 * 7 GBD v D ~ RAM s SUMMARY OF THE INVENTION In order to solve the above problems, it is an object of the present invention to provide a
第9頁 1251226 ——------- 五、發明說明(3) 一 =方法’ ί: 一個寫入脈衝,是根據輸入資料時 的。 飞)洛後的空白區的大小所產生 另一個本發明的目的,县茲 時構示區的大小及領先和ΐ產生一個根據輸入資料 合的寫入脈衝,以使得雷射=後的空白區的大小之適 度光學記錄裝置提供一個適=理想化,為高密 波形被包含ϋ第第次::的丄2 f提供-個方法藉由 錄媒體上,這適合的方在-個光學記 t白示區的大小及領先和(或)落後的 S窝入iis的寫入脈衝,及藉此適合的寫入脈 衝寫入輸入資料在光學記錄媒體上。 為了達到第二個目的,這裏提俣一個裝置,藉由一個 冩入脈衝,它的波形是被包含在一個第一次脈衝,一個最 後脈衝和一個多脈衝序列中,來寫入輸入資料在一個光學 兄錄媒體上,這適合的寫入電路包含一個鑑別器,以鐘二 輪入資料時標示區的大小及領先和(或)落後的空白區的 大小,一個波形產生器以控制寫入脈衝的波形,這寫入脈 衝是根據輸入資料時,標示區的大小及領先和(或)落後 的空白區的大小來產生適合的寫入脈衝,和一個驅動器夢 由轉換適合的寫入脈衝成為一個根據分別波段之驅動能階 的電路信號來驅動光源。Page 9 1251226 ——------- V. Description of the invention (3) A = method ' ί: A write pulse is based on the input data. The size of the blank area after the fly is generated by another object of the present invention. The size and lead of the display area of the county are generated by a write pulse according to the input data, so that the blank area after the laser = The modest optical recording device of the size provides a suitable = idealized, high-density waveform is included for the first time:: 丄 2 f provides a method by recording the media, this suitable square is in an optical t white The size of the display area and the lead and/or the backward S-sink into the iis write pulse, and the appropriate write pulse to write the input data on the optical recording medium. In order to achieve the second purpose, here is a device for writing an input data in a first pulse, a last pulse and a multi-pulse sequence by means of an intrusion pulse. In the optical brother media, the suitable write circuit includes a discriminator that controls the write pulse by the size of the marked area and the size of the leading and/or trailing blank area when the clock is wheeled into the data. Waveform, this write pulse is based on the size of the marked area and the size of the leading and/or backward blank area to generate a suitable write pulse, and a drive dream is converted by a suitable write pulse into a basis The circuit signals of the drive level of the respective bands are used to drive the light source.
第10頁 1251226 --—- 五、發明說明(4) 【實施方式 、在下文中,關於高密度光學記錄裝置 方法和電路的一個較佳實施例將被描述並 ^合的寫入 根據本發明的一個適合的寫入電路,类Γ1附圖s 含—個資料鐘別器1 〇 2,-個寫乂波〇 =在圖2,包 -個微電腦i 〇 6,一個寫入脈衝產生器1器1 0 4, 路驅動器1 1 〇。換句話說,資料鑑 3 8和-個電 的N R 2 I資料。寫人波形控制器2 〇 ^ ^鑑別輸入 1 〇 2和接地/固定信號產生的鑑別结果貧料鑑別器 ::皮形。冑電腦i 〇 6初始化寫入波形控制=寫入脈衝 制儲存在寫入波形控制器1 0 4中的:資料::〇 4 ’或 而被更新。寫入脈衝產生器工〇 =根據寫入狀態 1 〇 4的輸出來產生一個適合的 $寫入波形控制器 1 〇轉換由寫入脈衝產生器1 〇8產、電路驅動器1 ’成為根據各別波段之光的能階 的:2合的寫入脈衝 。 ^吩旧旎,以驅動光源 接下來,表示在圖2之裝置的 圖3到圖7。 動作將破描述並請參考 在圖二,資料鑑別器丄〇 2 時的寫入脈衝(參考當時銓別私示區的大小符合當Page 10 1251226 ---- V. DESCRIPTION OF THE INVENTION (4) [Embodiment, hereinafter, a preferred embodiment of a high-density optical recording device method and circuit will be described and described in accordance with the present invention. A suitable write circuit, class 1 s contains a data clock 1 〇 2, - write 〇 wave = in Figure 2, package - a microcomputer i 〇 6, a write pulse generator 1 1 0 4, the road drive 1 1 〇. In other words, data sheet 38 and - electricity N R 2 I data. Write waveform controller 2 〇 ^ ^Identification input 1 〇 2 and ground/fixed signal generated discrimination result poor material discriminator ::Skin shape.胄Computer i 〇 6 Initialize write waveform control = Write pulse The program is stored in the write waveform controller 1 0 4: Data::〇 4 ’ or is updated. Write pulse generator work = generate a suitable $ write waveform controller according to the output of write state 1 〇 4 〇 conversion by write pulse generator 1 〇 8 production, circuit driver 1 ' becomes different The energy level of the band: 2-input write pulse. ^The old 旎 to drive the light source Next, Fig. 3 to Fig. 7 of the apparatus of Fig. 2 are shown. The action will break the description and please refer to the write pulse in Figure 2, data discriminator ( 2 (refer to the size of the private display area at the time)
料中前半段空白區的;從輸入NRZU (參考領先的空白區,在下文"^、工白區的第一次脈衝 大小符合當時的空白區的最後脈栴’ t及後半段空白區的 ,並且應用領先和落後空白& >考落後的空白區) 白&及當時的標示區的大小來寫 1251226 五、發明說明(5) 入波形控制 及當時的標 超過1 0 0 脈衝的上升 和記憶體是 本發明中, 白區的大小 群組,當時 使兩作為區 寫入波 使向後和向 和當時標示 緣,使向後 ,如此去形 標不區的多 就是說,〇 器 1 0 4。 示區的大小 〇種組合。 邊緣和最後 必要的,使 輸入N R z ’被區分成 才示不區和領 分之依據。 形控制器1 前是根據由 區的大小而 和向前是根 成一個最理 脈衝序列使 • 5 T。 在這兒,領先和落後空白區的大小 可能的範圍從3 丁到;[4 丁。可能 因此,為了得到在所有狀況第一次 脈衝的下降邊緣變動的總數,電路 得系統和硬體更為複雜。因此,在 I資料當時標示區和領先及落後空 短脈衝群組、中脈衝群組和長脈衝 先及落後空白區被區分的大小,被 0 4改變第一次脈衝的上升邊緣, 鑑別器1 〇 2所提供領先空白區, 決定,或是改變最後脈衝的下降邊 據當時標示區和落後空白區的大小 想光能的寫入波形。在這兒,一個 用與圖3B中表示相同的形式,也 〇同樣的,寫入波形控制器1 0 4可以更正當時的標示 區的第一次脈衝的上升邊緣,和當時的標示區的最後脈衝 的下降邊緣成為不同值’在接地線路或固定電位線路上是 ,據外部供應接地/固定信號(LAN[) /GR〇〇VE指出輸入 〜N R Z I資料。這是為了形成一個寫入波形,而考慮到 根據接地或固定電位的不同最理想的光能。最理想的光能 在接地和固定電位之間有1 — 2 m W的差距,可以藉由設 计說明書來被特殊的設定或使用。因此,寫入波形控制器In the first half of the blank area of the material; from the input NRZU (refer to the leading blank area, in the following " ^, the first pulse size of the Gongbai area meets the last pulse of the blank area at the time and the blank area of the second half And apply the leading and trailing blanks &> the blank area behind the test) White & and the size of the marked area at that time to write 1251226 V. Invention description (5) Into the waveform control and the current standard exceeds 100 pulses The rise and the memory are the size groups of the white area in the present invention. At that time, the two areas are written into the wave so that the backward and the direction are marked with the edge, so that the backward direction, so that the shape is not the same, that is, the device 1 0 4. The size of the display area. The edge and finally necessary, so that the input N R z ' is divided into the basis for the absence of the zone and the collar. The shape controller 1 is based on the size of the zone and the forward is rooted into a most optimal pulse sequence to make • 5 T. Here, the size of the leading and trailing blank areas may range from 3 to 3; [4 D. Therefore, in order to get the total number of changes in the falling edge of the first pulse in all conditions, the circuit is more complicated by the system and hardware. Therefore, in the I data at the time the marked area and the leading and trailing short burst group, the middle pulse group and the long pulse and the trailing blank area are distinguished by the size of 0 4, the rising edge of the first pulse, discriminator 1 〇2 provides the leading blank area, decides, or changes the falling edge of the last pulse according to the size of the current marking area and the backward blank area. Here, in the same form as that shown in Fig. 3B, the same is true, the write waveform controller 104 can correct the rising edge of the first pulse of the current marked area, and the last pulse of the marked area at that time. The falling edge becomes a different value 'on the ground line or fixed potential line is, according to the external supply ground / fixed signal (LAN [) / GR 〇〇 VE pointed input ~ NRZI data. This is to form a write waveform, taking into account the optimum light energy depending on the ground or fixed potential. The most ideal light energy has a gap of 1 - 2 m W between the ground and the fixed potential, which can be specially set or used by the design specification. Therefore, the write waveform controller
第12頁 1251226 五、發明說明(6) 1 0 4可以用一個記憶體或一個邏輯電路來組成,在記憶 體中貧料被儲存的,相當於根據當時輸入N r z I資料的 標示區的大小,和領先及落後空白區的大小,而得到的第 一次脈衝的上升邊緣的變動值,和最後脈衝的下降邊緣的 變動值。在此情況下,寫入波形控制器1 〇 4是由一個記 憶體所組成’第一次脈衝和最後脈衝的寬度是由波段時序 (T )加減一個資料值(變動值)決定並儲存在記憶體中 。相同的’在記憶體中,對於每一個接地和固定電位之標 不區的弟一及最後脈衝的變動值也可以被儲存。儲存第一 次脈衝的上升邊緣的變動值的表格,和儲存最後脈衝的下 降邊緣的變動值的表格可以被合併。兩個分開的表格可被 準備的任擇其一地表示在圖6和圖7。 ^微電腦1 0 6初始化寫入波形控制器1 〇 4或控制第 Γ次t f或最後脈衝的變動值根據記錄狀態被更新。特別 地7υ "^可以根據零位改變或第一和最後脈衝的變動值可 根據零位被重設。 用來控制寫入脈衝之波形的脈衝寬度資料,被提供給 脈衝產生器1 08。寫入脈衝產生器1 〇8產生一個 i二::ΐ Γ ΐ ·示在圖3 F,是根據脈衝寬度資料用 形控制器10 4提供之寫入脈衝的波形, 嘀人:;制信號表示在圖3 c,3 D及3 Ε,以控制此 3:巧::衝之各別波段(即讀取,尖峰和偏倚波段) 的電二、二並輸入到電流驅動器1 1 0。 一 L _動為1 1 0轉換各別波段(即讀取,尖峰和偏Page 12 1251226 V. Description of invention (6) 1 0 4 can be composed of a memory or a logic circuit. The poor material stored in the memory is equivalent to the size of the marked area according to the input of N rz I data at that time. , and the size of the leading and trailing blank areas, and the variation of the rising edge of the first pulse and the variation of the falling edge of the last pulse. In this case, the write waveform controller 1 〇4 is composed of one memory. The width of the first pulse and the last pulse is determined by the band timing (T) plus or minus a data value (variable value) and stored in the memory. In the body. In the same memory, the variation values of the first and last pulses for each of the ground and fixed potentials can also be stored. A table storing the variation values of the rising edge of the first pulse, and a table storing the variation values of the falling edge of the last pulse can be combined. Two separate tables that can be prepared are optionally shown in Figures 6 and 7. ^Microcomputer 1 0 6 Initializes the write waveform controller 1 〇 4 or controls the fluctuation value of the first t t or last pulse to be updated according to the recording status. In particular, 7υ "^ can be reset according to the zero position or the fluctuation values of the first and last pulses can be reset according to the zero position. The pulse width data used to control the waveform of the write pulse is supplied to the pulse generator 108. The write pulse generator 1 〇8 generates an i 2::ΐ Γ ΐ · shown in Fig. 3 F, which is the waveform of the write pulse supplied by the shape controller 104 according to the pulse width data, 嘀人:; In Figure 3 c, 3 D and 3 Ε, to control the 3:2: and the respective bands (ie, the read, spike and bias bands) are input to the current driver 1 1 0. An L _ move is a 1 1 0 conversion of the individual bands (ie reading, spikes and partial
第13頁 1251226 五、發明說明(7) 倚波段)之光能的驅動能階成為電流, 控制各別波段之電流,去允許此電流流 制信號相同,因此適量的熱被應兩在記 連續的開關動作或光總量上的改變。這 義域表示在圖3( g)是在記錄中的媒體 圖3( a)表示輸入NRZ I資料, 和空白區。圖3(b)表示一個基本的寫 脈衝之第一次脈衝的上升邊緣較當時標 血0 · 5T。圖3(c)表示適合之寫^ 量的波形’圖3 ( d )表示適合之寫入脈 的波形,以及圖3 ( e )表示適合之寫入 量的波形。圖3 ( f )表示本發明提出的 波形。適合的寫入脈衝之寫入波形的第 緣,根據領先空白區的大小和當時標示 能向後或向前偏移。任意一個能量彳^ 取能量或寫入能量)在相當於此偏移$ 樣地,適合的寫入脈衝之寫入波形的最 ’根據當時標示區的大小和落後空白區 向後或向前偏移。相同的,紅立 ,°° 任思一個能 一個t買取能篁或寫入能量)在 者 甘4曰备於此 用。 任擇其一地,最後脈衝的下降中 的大小可能向前或向後偏移,盥卷日± 1 的大小無關。相同地,說的更恰^ ^ & 花費的控制時間與 過雷射二極體的控 錄中的媒體,|軎@ 兒,一個記錄的定 被形成的。 它被區分為標示區 入波形,其中寫入 示區的上升邊緣落 脈衝的一個讀取能 衝的一個尖峰能量 脈衝的一個偏倚能 適合的寫入脈衝之 一次脈衝的上升邊 區的大小的組合可 長指的是,一個讀 期間内被應用。同 後脈衡的下降邊緣 的大小的組合可能 量(這裏指的是, 偏移的期間内被應 緣根據當時標示區 示區的落後空白區 偏移第一次脈衝的Page 131251226 V. Description of invention (7) The driving energy level of the light energy of the band is the current, and the current of each band is controlled to allow the current to flow the same signal, so the appropriate amount of heat should be recorded continuously. The switching action or the change in the total amount of light. This domain is represented in Figure 3(g) as the media in the record. Figure 3(a) shows the input NRZ I data, and the blank area. Figure 3(b) shows that the rising edge of the first pulse of a basic write pulse is 0 · 5T from the current standard blood. Fig. 3(c) shows a waveform suitable for writing. Fig. 3(d) shows a waveform suitable for the write pulse, and Fig. 3(e) shows a waveform suitable for the write amount. Fig. 3(f) shows the waveform proposed by the present invention. The first edge of the write waveform for a suitable write pulse can be shifted backwards or forwards depending on the size of the leading blank area and the current indication. Any energy 彳 ^ energy or write energy) is equivalent to this offset $ sample, the most suitable write pulse waveform of the write pulse is shifted backward or forward according to the size of the marked area at the time and the trailing blank area . The same, red, ° ° Ren Si can buy a can or write energy. Alternatively, the size of the last pulse drop may be shifted forward or backward, irrespective of the size of the roll day ±1. Similarly, it is more appropriate to say that the control time spent with the media in the control of the laser diode, |軎@儿, a record is formed. It is divided into a labeled area-input waveform, in which a combination of a rising energy of a rising energy pulse of a rising edge of the writing region of the writing region can be adapted to a combination of the size of the rising edge of the pulse of the write pulse. The long finger is that it is applied during a reading period. The combined possibility of the size of the falling edge of the same pulse balance (herein, the offset is offset by the first pulse according to the backward blank area of the marked area at the time of the offset)
第14頁 1251226 五、發明說明(8) 上升邊緣和 可能被偏移 向後實行, 圖4描 組。在第一 指標是1 2 組的標不區 4 丁。在第 組指標是11 衝群組的標 1 1 T 和 1 組指標二者 組可依各別 邊緣都 向前或 例的群 尚群組 脈衝群 區是1 個高群 5中脈 示區是 和高群 最後脈衝的下降邊緣,任何一個脈衝的 口相同地,觀察偏移的方向,偏移可能 只能向前或只能向後。 述輸入NRZ ];資料的群組,表示出兩 例中’如果一個低群組指標是3及一個 此時短脈衝群組的標示區是3 丁,中 是從4 丁到丄丄丁,長脈衝群組的標示 二例中,如果一個低群組指標是4及一 ’此時短脈衝群組的標示區是3T和4 T 示區從5 T到1 〇 T,長脈衝群組的標 4 T。正如以上敘述,因為低群組指標 都被使用,所以實用效率被加強。同樣 的零位而被不同地實行。 圖5描述由領先和落後之空白區,和當時標示區的、級 合所決定的多種情況,在將輸入N R Z I資料使兩群叙j 標分類成三群組的條件下,表示在圖4。圖6描述〜询S 格表,示由領先空白區的大小和當時標示區的大小所決〜 的第一次脈衝之上升邊緣的變動值。圖7描述一個表格, 表示由當時標示區的大小和落後空白區的大小所決定的最 後脈衝之下降邊緣的變動值。 圖8是/個流程圖描述一個本發明的適合之寫八方、、| 的實施例。首先,一個寫入的模式被設定(步驟s 101 )= 如果寫入模式已被設定’便決疋疋否是一個合適的寫入方 法(步驟S102 )。如果在步驟sl〇2已決定這寫入模式是、Page 14 1251226 V. INSTRUCTIONS (8) The rising edge and possibly the offset are implemented backwards, Figure 4 depicts. In the first indicator is the 1 2 group of the standard area 4 D. In the first group of indicators, the 11 1 T and 1 group indicators of the 11-group are grouped according to the respective edges, or the group is still grouped. The group group is 1 high group 5 and the middle pulse region is The falling edge of the last pulse of the high group, the mouth of any one pulse is the same, the direction of the offset is observed, and the offset may only be forward or only backward. The input NRZ]; the group of data indicates that in two cases, 'If a low group indicator is 3 and one is short, the marked area of the short pulse group is 3 □, and the middle is from 4 □ to 丄丄, long pulse In the two cases of group identification, if a low group indicator is 4 and a 'the short pulse group's marked area is 3T and 4 T display area from 5 T to 1 〇T, the long pulse group's standard 4 T . As explained above, practical efficiency is enhanced because low group indicators are used. The same zero is implemented differently. Fig. 5 depicts various cases determined by the combination of leading and trailing blank areas, and the current marking area, which is shown in Fig. 4 under the condition that the N R Z I data is input to classify the two groups into three groups. Figure 6 depicts a query S grid table showing the variation of the rising edge of the first pulse determined by the size of the leading blank area and the size of the current marking area. Figure 7 depicts a table showing the variation of the falling edge of the last pulse determined by the size of the current marked area and the size of the trailing blank area. Figure 8 is a flow chart depicting an embodiment of a suitable writing method of the present invention. First, a write mode is set (step s 101) = if the write mode has been set, then it is determined to be a suitable write method (step S102). If in step sl1, it has been decided that this write mode is,
第15頁 1251226 少 乡且指標便被設 標所決定的一 白V群組表格, 電位的表格。 的零位的表格 的變動值,是 示在圖6之表 邊緣的變動值 從表示在圖7 (步驟S107 ) 變動值而被控 生之適合的寫 個寫入的動作 據本發明之適 波。它已被瞭 序列的底部能 偏倚能量是5 衝,時所產生 的寫入脈衝時 • 2公尺的速 五、發明說明(9) 個適合的寫入棋式’ 一個群 。然後,由這設定的群組指 擇(步驟S104 )。這被選擇 標同樣可反映出接地/固定 是一個可反映出記錄中媒體 第一次脈衝之上升邊緣 和當時標示區的組合,從表 驟Sl〇5),最後脈衝之下降 不區和落後空白區的組合, (步驟S106 )。 適合的寫入脈衝被產生 衝和最後脈衝是根據讀取的 %波段之光的能量用於被產 ’尖峰和倫翁能量,是被控 0 8 )以在光碟上執行一 式不是一個適合的寫入模式 生在步驟S107。 圖9是一張圖比較由根 平常的寫入方法所產生的突 光能是9 · 5mW,多脈衝 ’冷卻能量是1 · 2 m W和 據本發明寫入適合的寫入脈 般的寫入方法,寫入固定 定(步觯Sl〇3 ) 個群組表格被選 是/個和群組指 被選擇的表格也 〇 根據領先空白區 格中被讀取(步 ,是根據當時標 之表格中被讀取 ,其中第一次脈 制的。然後’各 入脈衝,即讀取 制來驅動一個雷射二換體(步 。如果這寫入模 個平常的寫入脈衝會被產 合的寫入方法和 解的,假設尖峰 量是1 · 2 m W * 2 m W,當根 的突波要比根據 所產生的突波為 度,抹除能量7 初 始化的情況是每秒4Page 15 1251226 Less than the township and the indicator is determined by the label of a white V group table, the table of potentials. The variation value of the table of the zero position is the appropriate value of the write value indicated by the change value at the edge of the table of FIG. 6 from the change value shown in FIG. 7 (step S107). . It has been subjected to the bottom of the sequence. The energy of the bias is 5 rushes, when the write pulse is generated. • The speed of 2 meters. V. Description of invention (9) Suitable for writing chess ‘a group. Then, the group set by this is designated (step S104). This selection criterion also reflects that the grounding/fixing is a combination that reflects the rising edge of the first pulse of the recording medium and the current marking area, from the table S1), the last drop of the pulse and the backward blank. Combination of zones, (step S106). The appropriate write pulse is generated and the last pulse is based on the energy of the read % band of light used to produce the 'spike and ronon energy, which is controlled 0 8 ) to perform on the disc is not a suitable write The entry mode is generated in step S107. Figure 9 is a graph comparing the projection energy produced by the usual writing method to 9.5 mW, the multi-pulse 'cooling energy is 1 · 2 m W and writing a suitable write-like write according to the present invention. Entry method, write fixed (step S1〇3) group table is selected as / and group refers to the selected table is also read according to the leading blank space (step, according to the current standard The table is read, which is the first pulse. Then 'input pulse, that is, read system to drive a laser two-body (step. If this writes a normal write pulse will be produced) The writing method and solution, assuming that the peak amount is 1 · 2 m W * 2 m W, when the root of the glitch is greater than the generated spur wave, the erasing energy 7 is initialized at 4 per second.
第16頁 1251226 五、發明說明(ίο) • 2mW和1 0 〇次的寫入動作。 換句話說,根據本發明,當適當地變動寫入脈衝的標 示區,第一次脈衝的上升邊緣會適當地偏移,根據輸入i'T R Z I資料領先空白區的大小,和當時標示區的大小去控 制寫入脈衝的波形,和/或最後脈衝的下降邊緣會適當地 偏移’根據輸入N R Z I貧料當時標不區的大小’和洛後 空白區的大小去控制寫入脈衝的波形,因此使突波減到最 小。同樣地,根據接地/固定信號寫入脈衝的波形可以趨 於完善 ° 相同地’在本發明中’群組或許可以根據各別的 零位不同地實行,使用群組指標。 根據本發明的一個新的適合之寫入方法可被採用在大 多數使用適合的寫入脈衝的高密度光學記錄裝置。 正如以上敘述,一個寫入脈衝的第一次和/或最後脈 衝的寬度是可變的,根據輸入N R Z I資料當時標示區的 大小》和領先或落後空白區的大小’因此使得突波減到最 小以加強系統的可靠度和效率。相同地,一個寫入脈衝的 寬度被控制的,藉由組合當時標示區的大小,和領先或落 後空白區的大小,因此縮小了硬體的尺寸。Page 16 1251226 V. Description of the invention (ίο) • Write operation of 2mW and 1 0 〇. In other words, according to the present invention, when the marked area of the write pulse is appropriately changed, the rising edge of the first pulse is appropriately shifted, and the size of the blank area is led according to the input i'T RZI data, and the time of the marked area. The size of the waveform to control the write pulse, and / or the falling edge of the last pulse will be appropriately shifted 'according to the size of the input NRZI poor material at the time of the standard area' and the size of the blank space to control the waveform of the write pulse, Therefore, the glitch is minimized. Similarly, the waveform of the write pulse according to the ground/fixed signal may tend to be perfect. Similarly, in the present invention, the group may be implemented differently according to the respective zeros, using the group indicator. A new suitable writing method in accordance with the present invention can be employed in most high density optical recording devices that use suitable write pulses. As described above, the width of the first and/or last pulse of a write pulse is variable, and the burst is minimized based on the size of the labeled area at the time of the input NRZI data and the size of the leading or trailing blank area. To enhance the reliability and efficiency of the system. Similarly, the width of a write pulse is controlled by combining the size of the current marked area and the size of the leading or falling blank area, thereby reducing the size of the hardware.
第17頁 1251226 圖式簡單說明 【圖示之簡單說明】 本發明的上述目的及優點藉由詳細描述一個較佳實施 例並參考明顯的附圖將變得更明顯: 圖1 A到1 E是平常的寫入脈衝的波形圖。 圖2是一個適合的寫入電路的方塊圖用於根據本發明 的一個實施例的一個高密度光學記錄裝置。 圖3 A到3 G是一個適合的寫入脈衝的波形圖,該寫 入脈衝是由圖2表示之適合的寫入電路所記錄。 圖4是輸入資料組合之圖例說明 ° 圖5表列說明由表示於圖4之資料組合所產生的脈衝 組合。 圖6表列說明根據本發明的第一次脈衝的上升邊緣變 動值。 圖7表列說明根據本發明的最後脈衝的下降邊緣變動 值。 圖8是根據本發明的一個實施例的一個適合的寫入方 法的流程圖。 圖9是圖示比較由本發明之適合的寫入方法和平常的 寫入方法所產生的突波之不同。 【圖號說明】 1 0 2資料鑑別器 1 0 4寫入波形控制器 1 0 6微電腦 1 0 8寫入脈衝產生器BRIEF DESCRIPTION OF THE DRAWINGS [0009] The above objects and advantages of the present invention will become more apparent from the detailed description of the preferred embodiments. The waveform of the usual write pulse. Figure 2 is a block diagram of a suitable write circuit for a high density optical recording device in accordance with one embodiment of the present invention. Figures 3A through 3G are waveform diagrams of a suitable write pulse that is recorded by a suitable write circuit as shown in Figure 2. Figure 4 is a graphical illustration of the combination of input data. Figure 5 shows a combination of pulses generated by the combination of data shown in Figure 4. Figure 6 is a table showing the rising edge transition values of the first pulse in accordance with the present invention. Figure 7 is a table showing the falling edge variation of the last pulse in accordance with the present invention. Figure 8 is a flow diagram of a suitable writing method in accordance with one embodiment of the present invention. Fig. 9 is a view showing a comparison of the glitch generated by comparing the writing method and the usual writing method of the present invention. [Description of the number] 1 0 2 data discriminator 1 0 4 write waveform controller 1 0 6 microcomputer 1 0 8 write pulse generator
第18頁 1251226 圖式簡單說明 110電路驅動器 ΙΗΙϋΙ 第19頁Page 18 1251226 Schematic description of the circuit 110 circuit driver ΙΗΙϋΙ page 19
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KR19970077746 | 1997-12-30 | ||
KR1019980004071A KR19990069679A (en) | 1998-02-11 | 1998-02-11 | Adaptive recording method and apparatus for high density optical recording device |
KR1019980029732A KR100354737B1 (en) | 1997-12-30 | 1998-07-23 | Adaptive writing method for high density optical recording equipment and circuit thereof |
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TW92118018A TWI251229B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
TW92118015A TWI251226B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
TW088112489A TWI251216B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
TW92118016A TWI251227B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
TW92118017A TWI251228B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
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TW92118016A TWI251227B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
TW92118017A TWI251228B (en) | 1997-12-30 | 2000-01-04 | Adaptive writing method for high-density optical recording apparatus and circuit thereof |
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TW200306539A (en) | 2003-11-16 |
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TW200306540A (en) | 2003-11-16 |
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