1227472 A7 五、發明説明（1 / 本發明是有關配合供記錄的資料，形成複數種記錄標 記來執行多階段記錄的光記錄方法及共通於該光記錄方法 的光記錄媒體。 如習知的光記錄媒體般，有關對於利用多段改變再生 號的長度（反射信號調制部的長度）而記錄資料的方法 ’多數是利用多段切換再生信號的深度（反射信號的調制 度）’在相同長度的各信號記錄複數資料的方法的硏究。 根據此光記錄方法，由於只要與利用有無凹坑來說明 2値資料做比較，就能在深度方向記錄複數的資料，故可 增加分配在一定長度的信號量，因而能提高線記錄密度。 多段切換再生信號的深度的方法，一般是多段切換雷射束 的功率，形成任何一種不同的記錄標記。現在提案一其記 錄媒體是利用雷射攝影或記錄層爲多層者。 再者，在此記錄著反射信號的調制度爲互不相同的複 數種記錄資料乃稱爲多階段記錄。 一方面，有關該些多階段記錄的光記錄方法，會有隨 著記錄時的雷射束的功率變大，亦即隨著所形成的反射信 號的深度變深，再生時的信號品質劣化的問題。此理由就 連目前也不是很淸楚。 例如，利用習知手法，爲了記錄媒體的記錄資訊量的 高密度化而縮短記錄標記，其中在多段切換雷射束的功率 進行多階段記錄時，其信號品質劣化變得很明顯。就是採 用多階段記錄，記錄標記的高密度化變得很困難，具有不 相容缺點的問題。 本紙張尺度適用中國國家標準（CNS)A4規格（210X297公董） (請先閱讀背面之注意事項再填寫本頁) 一裝· 訂 經濟部智慧財產局員工消費合作社印製 -4 1227472 A7 B7 五、發明説明（2 ) 又階段式地切換習知雷射束的功率來執行多階段記錄 的光記錄方法的思想，前提是記錄標記長要比記錄時的聚 光光束（光束寬度）的直徑大。 一般聚光光束的直徑是以Κλ/ΝΑ (K ··定數、λ :雷射波長、N A :透鏡的數値口徑）表示。被利用在 CD 的拾波器，一般 λ = 78〇ηπι、ΝΑ 二 〇 . 45， 聚光光束的直徑約爲1 . 6 // m。此時記錄標記長變爲 1 . 6 // m左右的話，上述信號劣化的問題就很明顯，利 用改變雷射束功率的方法執行5階段以上的多階段記錄就 變得很困難。 認爲以上問題是雷射束的功率設定、記錄媒體的特性 等所有要素錯綜複雜的結果，但本發明人所知的程度，其 原因目前尙不淸楚，高密度的多階段記錄實際情形包括其 記錄方法均尙未達成。 本發明是有鑑於上述問題的發明，提案一種新的多階 段記錄方法，目的在於達成高密度的多階段記錄。 本發明人針對光記錄媒體重新刻意硏究，於此發現多 階段記錄的記錄方法，確認可藉由此記錄方法，對光記錄 媒體進行5階段以上的高密度多階段記錄。 即可藉由以下的本發明達成上述目的。 (1 ) 一種光學記錄方法，乃屬於在光透過性基板上 針對具備記錄層的光學記錄媒體利用雷射束的照射形成記 錄標記的光學記錄方法，其特徵爲：將與前述雷射束的相 對移動方向的任意單位長度以及與此垂直的方向的任意單 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) •裝_ 經濟部智慧財產局員工消費合作社印製 -5- 1227472 A7 B7 五、發明説明（3 ) 位寬度的虛擬記錄單元，沿著前述移動方向連續的規定在 前記錄層，前述雷射束的照射功率是將淸除功率、待機功 率、爲了形成前述記錄標記的記錄功率的至少3階段按此 順序而變大地加以設定，將利用針對前述虛擬記錄單元的 前述記錄功率的記錄照射時間設定爲5階段以上’以前述 淸除功率從利用前述記錄功率的照射結束的時間到經過所 定時間的期間來照射前述虛擬記錄單元，更以前述待機功 率從利用該淸除功率的照射結束的時間到開始利用前述記 錄功率的照射的期間來照射下一個前述虛擬記錄單元，且 藉由針對複數的前述虛擬記錄單元，形成5階段以上調制 並照射利用前述記錄功率的記錄照射時間，形成至少5種 大小不同的記錄標記，根據相對於該虛擬記錄單元的前述 記錄標記的面積比來調制光反射率，而對資訊進行多階段 記錄。 (2 )於上述（1 )中，前述記錄層是經由前述記錄 功率照射雷射束而成爲非晶質，同時採用藉由前述待機功 率照射雷射束照射而成爲結晶質的相變化記錄層，就可針 對前述虛擬記錄單元重複進行多階段記錄爲特徵爲光記錄 方法。 (3 )於上述（1 )或（2 )中，利用前述淸除功率 的照射時間經常保持一定爲特徵的光記錄方法。 (4 )於上述（1 ) 、（ 2 )或（3 )中，設定成利 用先行的前述記錄功率的前述記錄照射時間愈長利用前述 待機功率的照射時間就愈短爲特徵的光記錄方法。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） ' (請先閱讀背面之注意事項再填寫本頁) -裝·1227472 A7 V. Description of the invention (1 / The present invention relates to an optical recording method for performing multi-stage recording by forming a plurality of types of recording marks in cooperation with data for recording, and an optical recording medium common to the optical recording method. Regarding a recording medium, the method of recording data by changing the length of the reproduction number (the length of the reflection signal modulation section) by using multiple segments 'mostly uses multiple stages to switch the depth of the reproduction signal (the modulation degree of the reflection signal)' for each signal of the same length Research on the method of recording plural data. According to this optical recording method, as long as the data can be recorded in the depth direction as long as it is compared with the use of the presence or absence of pits to describe 2 data, the amount of signals allocated to a certain length can be increased. Therefore, the linear recording density can be improved. The method of switching the depth of the reproduced signal in multiple stages is generally to switch the power of the laser beam in multiple stages to form any kind of different recording marks. Now the first proposal is to use laser photography or a recording layer as In addition, the modulation of the reflected signals is different from each other. This kind of recording data is called multi-stage recording. On the one hand, the optical recording method of these multi-stage recording will increase with the power of the laser beam during recording, that is, with the depth of the reflected signal formed. It becomes deeper and the signal quality deteriorates during reproduction. This reason is not even so clear at present. For example, the conventional method is used to shorten the recording mark in order to increase the recording information volume of the recording medium. When the laser beam power is used for multi-stage recording, the signal quality degradation becomes very obvious. That is, with multi-stage recording, the high-density recording marks become difficult and have the problem of incompatibility. This paper scale is suitable for China National Standard (CNS) A4 Specification (210X297 public director) (Please read the precautions on the back before filling this page) One Pack · Order Printed by the Intellectual Property Bureau Staff Consumer Cooperatives-4 1227472 A7 B7 V. Invention Description (2 ) The idea of the optical recording method of performing multi-stage recording by switching the power of the conventional laser beam step by step is also provided that the recording mark length is longer than that during recording. The diameter of the light beam (beam width) is large. The diameter of a general condensing beam is represented by κλ / ΝΑ (K ·· constant number, λ: laser wavelength, NA: number of apertures of the lens). It is used in CD pickup Device, generally λ = 78〇ηπι, ΝΑ 20.45, the diameter of the condensing beam is about 1.6 // m. At this time, if the record mark length becomes about 1.6 // m, the above signal degradation problem Obviously, it is difficult to perform multi-stage recording with more than 5 stages by changing the laser beam power. It is considered that the above problems are the intricate results of all the factors such as the laser beam power setting and the characteristics of the recording medium, but The extent to which the inventors are aware of this is not clear at present, and the actual situation of high-density multi-stage recording, including its recording method, has not been achieved. The present invention has been made in view of the above-mentioned problems, and proposes a new multi-stage recording method, which aims to achieve high-density multi-stage recording. The present inventors re-examined the optical recording medium deliberately, and found a recording method of multi-stage recording, and confirmed that the high-density multi-stage recording of 5 stages or more can be performed on the optical recording medium by this recording method. The above object can be achieved by the following invention. (1) An optical recording method is an optical recording method for forming a recording mark on a light-transmitting substrate by using laser beam irradiation on an optical recording medium having a recording layer, which is characterized in that Any unit length in the moving direction and any single paper size perpendicular to this are applicable to the Chinese National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page) Printed by the Intellectual Property Bureau's Consumer Cooperatives -5- 1227472 A7 B7 V. Description of the Invention (3) The virtual recording unit with a bit width is continuously specified in the front recording layer along the aforementioned moving direction. The irradiation power of the aforementioned laser beam is At least three stages of the erasing power, the standby power, and the recording power for forming the recording mark are set in this order, and the recording irradiation time using the recording power for the virtual recording unit is set to 5 or more stages. The erasing power is irradiated from the time when the irradiation with the recording power is completed to the lapse of a predetermined time. Shooting the virtual recording unit, and irradiating the next virtual recording unit with the standby power from the end time of the irradiation using the erasing power to the start of the irradiation with the recording power, and using a plurality of the virtual recordings The unit forms a recording irradiation time using five or more stages of modulation and irradiation, and forms at least five recording marks of different sizes. The light reflectance is modulated according to the area ratio of the recording marks with respect to the virtual recording unit, and Information is recorded in multiple stages. (2) In the above (1), the recording layer is made amorphous by irradiating a laser beam through the recording power, and a phase change recording layer that becomes crystalline by irradiating the laser beam with standby power, The multi-stage recording can be repeated for the aforementioned virtual recording unit, which is characterized by an optical recording method. (3) In the above-mentioned (1) or (2), the irradiation time using the foregoing erasing power is often maintained with a certain characteristic optical recording method. (4) In the above (1), (2), or (3), the optical recording method is set such that the longer the recording irradiation time using the preceding recording power is, the shorter the irradiation time using the standby power is. This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) '(Please read the precautions on the back before filling this page) -Packing ·
、1T 經濟部智慧財產局員工消費合作社印製 -6 - 1227472 A7 B7 五、發明説明（4 ) (5 )於上述（4 )中，分配到虛擬記錄單元的前述 記錄照射時間是在前述5階段以上中至少最長時間的情形 下’利用其後的前述待機功率的照射時間略設定爲零爲特 徵的光記錄方法。 (6 )於上述（1 )至（5 )的任一項中，於被記錄 在前述虛擬記錄單元的記錄標記，至少包括比前述雷射束 的聚束光點尺寸小的記錄標記。 (7 ) —種光記錄媒體，乃屬於在光透過性基板上具 備有記錄層，對該記錄層照射雷射束而形成記錄標記的光 記錄媒體，其特徵爲：利用上述（1 )至（6 )的任一項 所記載的光記錄方法，針對複數的前述虛擬記錄單元形成 5種以上大小不同的記錄標記。 本發明人不是調制記錄時的雷射束功率，而是藉由調 制雷射束照射時間的新發想，而發現能執行多階段記錄。 此結果能飛躍性地提高記錄密度。 但光是單純地藉由調制照射時間來形成記錄標記，明 確判定是無法確實讀取其記錄標記的。 針對虛擬記錄單元形成多階段的記錄標記的高密度多 階手法’其最終目標在於能精度良好的設定各虛擬記錄單 元的光反射率。因而根據本發明人的解析時，並沒有爲了 形成記錄標記積極照射雷射束的期間，其他時間帶照射雷 射束（就是沒有形成記錄標記目的時的照射）微妙的影響 (錯開）到虛擬記錄單元的光反射率的可能性昇高是可理 解的。認爲此乃降低從光記錄媒體讀取資訊時的確實性的 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） I--------裝—ί* I (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 -7 - 1227472 A7 B7 五 '發明説明（5 ) 主要原因之一。 就是已描述之虛擬記錄單元連續的設定在被照射雷射 束的相對移動方向的情形，但爲連續的關係所以能忽視相 對的虛擬記憶單元的影響。 例如先行的虛擬記錄單元的記錄標記是利用最大累計 光量（記錄照射時間爲最長）而記錄的情形，其記錄完成 時所具有的雷射熱量，明顯的比藉由最小累計光量（記錄 照射時間是最小）所記錄的情形大。再加上，針對先行的 虛擬記錄單元，利用最大累計光量形成記錄標記的情形下 ’從其記錄完成後到在下一個虛擬記錄單元進行照射的定 時的時間，與在先行的虛擬記錄單元利用最小累計光量而 記錄的情形等比較縮短的緣故，得不到充分釋放前述熱量 的時間，對下一個虛擬記錄單元而言記錄變得很不穩定。 於是本發明作爲雷射束的照射功率，除了欲積極形成 記錄標記的記錄功率外，還設定待機功率與淸除功率的2 値。藉由記錄功率對虛擬記錄單元形成記錄標記後，利用 最弱的淸除功率（就是對光反射率的影響爲最小的功率） 進行照射，就能將該虛擬記錄單元的光反射率收束在所定 値。假設以某種程度的大功率進行照射時，就會偏離所希 望的光反射率。 更因爲藉由淸除功率進行所定時間照射後，切換到比 淸除功率更高功率的待機功率進行照射，所以對下一個虛 擬記錄單元而言，能馬上令雷射束的供給能量上昇到記錄 功率。此結果就連該虛擬記錄單兀也能確保正確的光反射 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） ---------^裝 l· — (請先閲讀背面之注意事項再填寫本頁) 、11 經濟部智慧財產局員工消費合作社印製 -8- 1227472 A7 B7 五、發明説明（6 ) (請先閲讀背面之注意事項再填寫本頁) 率。假如利用淸除功率過度淸除光記錄媒體及雷射兩者的 話，到達下一個記錄功率的前緣發生不穩定的延遲’有無 法獲得所希望的光反射率的可能性。 如以上針對多階段記錄以淸除功率、待機功率、記錄 功率爲所謂合理的思想下利用「以高精度來設定虛擬記錄 單元的光反射率」，就能實際對虛擬記錄單元設定5階段 以上的光反射率。 也由此種理由得知’根據本申g靑人揭不在其他的申g靑 案中，也一倂採用將殘留在先行的虛擬記錄單元的熱量利 用在對下一個虛擬記錄單元進行記錄的方法（延遲儲存） 時，更能得到所希望的結果。 再者，上述光記錄媒體的記錄層是以包含有機染料所 構成的爲佳，經由本發明人確認實際可達成5階段以上的 多階段記錄。 再者，上述本發明也可附加如下的構成。 經濟部智慧財產局員工消費合作社印製 根據針對形成在前述虛擬記錄單元內的記錄標記的該 虛擬記錄單元的面積佔有率，來調制在該虛擬記錄單元全 體的光反射率，進行5階段以上多階段記錄資訊的光學記 錄方法。 沿著前述記錄層設有雷射束引導用的溝槽，前述虛擬 記錄單元是設定在前述溝槽內，且前述單位寬度略等於前 述溝槽的寬度爲特徵的光學記錄媒體。 在前述虛擬記錄單元記錄表示多階段記錄媒體的特定 資訊爲特徵的光學記錄媒體。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -9 - 1227472 A7 五、發明説明（7 ) 沿著前述記錄層設有雷射束引導用的溝槽，該溝_ ^ 〜部分被中途切開爲特徵的光學記錄媒體。 以下參照圖面詳細地說明本發明的實施形態例。 適用有關本發明的實施形態例的光學記錄方法的光_ 記錄媒體（碟片）1 〇是種在記錄層1 2使用染料的c D —R，或利用相變化材料的C D - R W。c D - R的情形 下’例如由包括：由透明基材所製成的基板1 4 ;和由覆 蓋並塗佈於被形成在該基板1 4其中一面（第1圖中的上 面）的雷射束引導用的溝槽1 6的染料所製成的前述記錄 層1 2 ;和利用濺鍍等形成在該記錄層1 2上側的金或銀 等的反射膜1 8 ;覆蓋在該反射膜1 8外側的保護層2 〇 所形成。C D - R W的情形下，例如由包括：覆蓋溝槽 (請先閱讀背面之注意事項再填寫本頁) 裝. 訂 經濟部智慧財產局員工消費合作社印製 1 6而至少經由成膜所形成的下部保護層（ 由相變化材料所製成的記錄層、上部保護層 、包括光反射層，覆蓋光反射層的保護層2 0 前述記錄層1 2所採用的染料則有：哇 次曱基系染料及其衍生物、苯硫酚金屬錯體 萘酞菁染料、偶氮染料等有機染料，相變化 的GeSbTe系、AgInSbTe系等。 對前述光學記錄媒體1 〇進行多階段記 2圖所示的光學記錄裝置3 0來實行。 該光學記錄裝置3 伺服器3 1利用主軸馬達3 2，使光學記錄 1 0以一定的線速條件旋轉驅動，藉由來自 誘電体層）、 (誘電体層） 所形成。 啉藍、份菁、 、酞菁染料、 材料則是一般 錄，是藉由第 是指CD — R記錄器，介著主軸 媒體（碟片） 雷射裝置3 6 本紙張尺度適用中國國家榡準（CNS ) A4規格（210Χ297公釐） -10- 1227472 A7 ____ B7 五、發明説明（8 ) 的雷射束’於光學記錄媒體（碟片）1 Q上記錄資訊者。 (請先閲讀背面之注意事項再填寫本頁} 雷射驅動器3 8是配合可記錄的資訊，來控制第1圖 所示的虛擬記錄單元（詳細後述）4 0的相當一個雷射束 的照射時間’例如輸入前述雷射裝置3 6的雷射脈衝數。 更且’雷射驅動器3 8可將雷射束的照射功率設定成 淸除功率C、待機功率τ、記錄功率K的至少3階段。在 此設定成C < T < K。再者，利用上述記錄功率κ照射雷 射束時’針對虛擬記錄單元4 0實際形成記錄標記48八 〜4 8 G 〇 第2圖的符號4 2是指包括：物鏡4 2 A及稜鏡4 2 B的記錄光學系統。物鏡4 2 A是利用聚焦尋軌伺服器 4 4控制雷射束聚光在碟片1 〇的記錄層1 2。又，物鏡 4 2A與稜鏡4 2 B是利用運送伺服器4 6與碟片1 0的 旋轉同步的由其內周側至外周側以所定速度被移動控制。 前述主軸伺服器3 1、聚焦尋軌伺服器4 4、運送伺 服器4 6是利用控制裝置5 0被控制的。可記錄在記錄層 1 2的資料（資訊）會輸入到該控制裝置5 0。 經濟部智慧財產局員工消費合作社印製 如第3圖詳細所示，雷射驅動器3 8包括：照射時間 控制裝置3 9。該照射時間控制裝置3 9具備有：單元時 間設定部6 0、和記錄照射時間設定部6 2、和分配處理 部6 4、和冷却時間設定部6 6、和待機時間算出部6 8 〇 單元時間設定部6 0是連續的規定所定的單元時間T (T1、T2、T3、T4、T5'T6 .......)。此 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 一 -11 - 1227472 A7 B7 五、發明説明（9 ) (請先閲讀背面之注意事項再填寫本頁) 結果例如針對雷射裝置3 6的光學記錄媒體1 0的移動速 度（線速度）爲v的場合下，在該光學記錄媒體1 〇上連 續的規定長度Η爲「v X T」的虛擬記錄單元4〇。 記錄照射時間設定部6 2是在上述單元時間Τ以內規 定5階段以上（在此爲Α〜G的7段）的基準照射時間Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 1T-1227472 A7 B7 V. Description of the invention (4) (5) In the above (4), the aforementioned recording exposure time allocated to the virtual recording unit is in the aforementioned 5 stages In the case of at least the longest time above, an optical recording method is characterized in that the irradiation time using the aforementioned standby power is set slightly to zero. (6) In any one of the above (1) to (5), the recording mark recorded in the virtual recording unit includes at least a recording mark smaller than a spot size of the beam spot of the laser beam. (7) An optical recording medium is an optical recording medium provided with a recording layer on a light-transmitting substrate and irradiating the recording layer with a laser beam to form a recording mark, which is characterized by using the above (1) to ( 6) The optical recording method according to any one of the above items, wherein five or more types of recording marks having different sizes are formed for the plurality of virtual recording units. The present inventors did not modulate the laser beam power at the time of recording, but discovered that it is possible to perform multi-stage recording by adjusting the laser beam irradiation time. As a result, the recording density can be dramatically improved. However, the recording mark is simply formed by modulating the irradiation time, and it is clearly determined that the recording mark cannot be read reliably. The ultimate goal of a high-density, multi-stage method of forming multi-stage recording marks for virtual recording units is to set the optical reflectance of each virtual recording unit with high accuracy. Therefore, according to the analysis by the present inventor, there is no period in which the laser beam is actively irradiated to form a recording mark, and the laser beam is irradiated at other times (that is, the irradiation when the recording mark is not formed). The possibility of an increase in the light reflectance of the unit is understandable. This paper considers that this paper reduces the reliability when reading information from optical recording media. This paper applies the Chinese National Standard (CNS) A4 specification (210X297 mm) I -------- 装 —ί * I (Please Read the notes on the back before filling this page) Order printed by the Intellectual Property Bureau's Consumer Cooperatives of the Ministry of Economics-7-1227472 A7 B7 One of the main reasons for the 5 'invention (5). It is described that the virtual recording unit is continuously set in the relative moving direction of the irradiated laser beam, but it is a continuous relationship so the influence of the relative virtual memory unit can be ignored. For example, the recording mark of the preceding virtual recording unit is recorded by using the maximum cumulative light amount (the longest recorded irradiation time). The laser heat at the time of recording is significantly higher than the minimum cumulative light amount (the recorded irradiation time is Minimal) The situation recorded is large. In addition, in the case of forming a recording mark using the maximum accumulated light amount for the preceding virtual recording unit, the time from the completion of its recording to the timing of irradiation at the next virtual recording unit uses the minimum accumulation with the preceding virtual recording unit. For the reason that the amount of light recording is relatively short, the time for which the aforementioned heat is not sufficiently released cannot be obtained, and the recording becomes unstable for the next virtual recording unit. Therefore, in the present invention, as the irradiation power of the laser beam, in addition to the recording power to actively form a recording mark, the standby power and the erasing power are set to 2 値. After the recording mark is formed on the virtual recording unit by the recording power, the weakest erasing power (that is, the power with the smallest effect on the light reflectance) is irradiated to condense the light reflectance of the virtual recording unit.値 定 値. It is assumed that, when irradiated with a certain amount of high power, the desired light reflectance will deviate. Furthermore, after the irradiation is performed for a predetermined time with the erasing power, the irradiation is switched to the standby power with a higher power than the erasing power for irradiation. Therefore, for the next virtual recording unit, the laser beam supply energy can be immediately increased to the record. power. This result ensures that even the virtual recording unit can correctly reflect the light. The paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) --------- ^ 装 l · — (Please Read the notes on the back before filling this page), 11 Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -8- 1227472 A7 B7 V. Description of the invention (6) (Please read the notes on the back before filling this page) Rate . If both the optical recording medium and the laser are removed by using the erasing power excessively, an unstable delay occurs at the leading edge of the next recording power, and there is a possibility that the desired light reflectance cannot be obtained. As described above, for the multi-stage recording, the erasing power, standby power, and recording power are the so-called reasonable ideas. Using "setting the light reflectance of the virtual recording unit with high accuracy", you can actually set the virtual recording unit to more than 5 stages Light reflectivity. From this reason, it is also known that according to the present application, people are not exposed in other applications, and the method of using the heat remaining in the previous virtual recording unit to record the next virtual recording unit is also used. (Delayed storage), you can get the desired result. The recording layer of the optical recording medium is preferably composed of an organic dye, and the inventors have confirmed that multi-stage recording of 5 or more stages can be actually achieved. The present invention described above may be added with the following configuration. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints the light reflectance of the entire virtual recording unit based on the area occupancy of the virtual recording unit with respect to the recording mark formed in the aforementioned virtual recording unit. Optical recording method of phase recording information. A groove for guiding a laser beam is provided along the recording layer, and the virtual recording unit is an optical recording medium that is set in the groove and has a unit width that is slightly equal to the width of the groove. An optical recording medium characterized by specific information representing a multi-stage recording medium is recorded in the aforementioned virtual recording unit. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -9-1227472 A7 V. Description of the invention (7) A groove for guiding the laser beam is provided along the aforementioned recording layer, and the groove _ ^ ~ An optical recording medium characterized by being partially cut in half. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The optical recording medium (disc) 10 to which the optical recording method according to the embodiment of the present invention is applied is a CD D-R using a dye in the recording layer 12 or a CD D-R W using a phase change material. In the case of c D-R, for example, it includes: a substrate 14 made of a transparent substrate; and a thunder covered and coated on one surface of the substrate 14 (the upper surface in FIG. 1). The above-mentioned recording layer 12 made of the dye for the beam guiding groove 16; and a reflective film 18 made of gold or silver formed on the recording layer 12 by sputtering or the like; and covering the reflective film 18 is formed by a protective layer 20 on the outside. In the case of CD-RW, for example, it includes: covering grooves (please read the precautions on the back before filling this page). The order is printed at least 16 by the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and formed by film formation. Lower protective layer (recording layer made of phase change material, upper protective layer, including light reflecting layer, protective layer covering light reflecting layer 2 0 The dyes used for the aforementioned recording layer 12 are: Dyes and their derivatives, organic dyes such as thiophenol metal complex naphthalocyanine dyes, azo dyes, phase-change GeSbTe-based, AgInSbTe-based, etc. The optical recording medium 10 described above is shown in FIG. The optical recording device 30 is implemented. The optical recording device 3 and the server 31 use the spindle motor 32 to rotate and drive the optical recording device 10 at a constant line speed. Formed. The cyanocyanine, cyanocyanine, phthalocyanine dyes, and materials are general records. The CD-R recorder refers to the CD-R recorder, and the spindle media (disc). (CNS) A4 specification (210 × 297 mm) -10- 1227472 A7 ____ B7 5. The laser beam of invention description (8) 'records information on an optical recording medium (disc) 1 Q. (Please read the precautions on the back before filling out this page} The laser driver 38 is controlled by the recordable information to control the irradiation of a laser beam equivalent to the virtual recording unit shown in Figure 1 (described in detail below). For example, 'time' is input the number of laser pulses of the aforementioned laser device 36. Furthermore, 'laser driver 38 can set the irradiation power of the laser beam to at least three stages of erasing power C, standby power τ, and recording power K. Here, it is set to C < T < K. In addition, when the laser beam is irradiated with the above-mentioned recording power κ, a recording mark is actually formed for the virtual recording unit 4 0 48 to 4 8 G 〇 Symbol 4 in FIG. 2 Reference numeral 2 refers to a recording optical system including: an objective lens 4 2 A and 稜鏡 4 2 B. The objective lens 4 2 A is a recording layer 12 for controlling a laser beam to be focused on a disc 10 by a focusing tracking server 44. In addition, the objective lenses 4 2A and 稜鏡 4 2 B are moved and controlled at a predetermined speed from the inner peripheral side to the outer peripheral side by the transport server 46 in synchronization with the rotation of the disc 10. The above-mentioned spindle servo 3 1. Focus The tracking server 44 and the transport server 46 are controlled by the control device 50. The data (information) recorded in the recording layer 12 will be input to the control device 50. The print is printed in detail in Figure 3 by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The laser driver 38 includes: the irradiation time control device 3 9. The irradiation time control device 3 9 includes a unit time setting unit 60, a recording irradiation time setting unit 6, 2, a distribution processing unit 6, 4, a cooling time setting unit 6, 6, and a standby time calculation unit 6 8 〇Unit time setting unit 60 is the unit time T (T1, T2, T3, T4, T5'T6 ...) which is continuously specified. This paper standard is applicable to Chinese National Standard (CNS) Α4 (210X297 mm) 1-11-1227472 A7 B7 V. Description of the invention (9) (Please read the precautions on the back before filling this page) Results For example, the moving speed of the optical recording medium 10 of the laser device 3 6 ( When the linear velocity) is v, the virtual recording unit 40 having a predetermined length Η “v XT” continuously on the optical recording medium 10 is set. The recording irradiation time setting unit 6 2 specifies the time within the unit time T 5 Stage above (7 in Α ~ G here Segment) reference exposure time
1 A........ t G。此場合下，是將基準照射時間t A ........t G事先記錄在記憶體中，讀出照射時間加以 規定亦可，又讀取寫入光學記錄媒體1 〇中的基準照射時 間資訊加以規定亦可。 分配處理部6 4是用來調制儲存在控制裝置5 0的原 資訊，用以設定多階段記錄用的位元系列，並分配在各單 元時間T。該多階用的位元系列，在此例中存在7段（A 、B、C、D、E、F、G )的記錄標記例如{ B、E、 D、C ' G、G.......}等。該各數値是指形成在各記 錄單元4 0的記錄標記的級數的意思。因而配合上述位元 系列的各級數而在各單元時間Τ 1、T 2…分配上述記錄 照射時間t A〜t G。 經濟部智慧財產局員工消費合作社印製 冷却時間設定部6 6是連續的在分配到各虛擬記錄單 元4 0的記錄照射時間t A〜t G來規定所定的冷却時間 R。該冷却時間R可以讀出事先記錄於準備在雷射驅動器 3 8的記憶體，而且也可以讀出事先記錄在光記錄媒體 1 ◦的資訊。 待機時間算出部6 8是從各冷却時間R結束時到下一 個虛擬記錄單元4 0的記錄照射時間t A〜t G開始時爲 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -12- 1227472 A7 B7 五、發明説明（10 ) 止的期間來設定待機時間g。 (請先閲讀背面之注意事項再填寫本頁) 對光學記錄媒體1 0，乃如第1圖所示，在前述溝槽 1 6內將虛擬記錄單元4 0連續的規定在碟片3 4的旋轉 方向亦即圓周方向S。各虛擬記錄單元40的圓周方向S 的單位長度爲Η，如第4圖所示，設定在比光束直徑（光 束寬度 直徑）D短的長度。又，與上述單位長度Η (二 ν X Τ )垂直的方向的單位寬度爲W。對每個虛擬記錄單 元4 0照射雷射束，配合可記錄的資訊形成模式性例示的 記錄標記4 8 Α〜4 8 G。 具體上是包括以下的步驟來形成記錄標記4 8 A〜 4 8 G 〇1 A ........ t G. In this case, the reference irradiation time t A ........ t G is recorded in the memory in advance, and the irradiation time may be read out and specified, and the reference written in the optical recording medium 1 〇 may be read. The irradiation time information may be specified. The allocation processing unit 64 is used to modulate the original information stored in the control device 50, to set the bit series for multi-stage recording, and to allocate the time T in each unit. For this multi-level bit series, in this example, there are 7 segments (A, B, C, D, E, F, G) record marks such as {B, E, D, C 'G, G ... ....}Wait. Each number 値 means the number of levels of a recording mark formed in each recording unit 40. Therefore, in accordance with the number of levels of the above-mentioned bit series, the above-mentioned record irradiation times t A to t G are allocated at each unit time T 1, T 2 .... Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The cooling time setting unit 66 continuously sets the predetermined cooling time R at the recording irradiation time t A to t G allocated to each virtual recording unit 40. This cooling time R can read out information previously recorded in the memory prepared in the laser drive 38, and also can read out information previously recorded in the optical recording medium 1 ◦. The standby time calculation unit 68 is the recording irradiation time t A ~ t G from the end of each cooling time R to the next virtual recording unit 40. The Chinese national standard (CNS) A4 specification (210X297 mm) is applied to the paper size at the beginning. ) -12- 1227472 A7 B7 V. Description of the invention (10) to set the standby time g. (Please read the precautions on the back before filling in this page.) For the optical recording medium 10, as shown in Figure 1, the virtual recording unit 40 is continuously specified in the groove 16 on the disc 3 4 The direction of rotation is the circumferential direction S. The unit length in the circumferential direction S of each virtual recording unit 40 is Η, and is set to a length shorter than the beam diameter (beam width diameter) D as shown in FIG. 4. The unit width in a direction perpendicular to the unit length Η (two ν X T) is W. Each virtual recording unit 40 is irradiated with a laser beam, and recording marks 4 8 Α to 4 8 G are exemplarily formed in accordance with recordable information. Specifically, the following steps are included to form the recording marks 4 8 A to 4 8 G.
實際資訊記錄在光學記錄媒體1 0時，設定單元時間 T，如已描述地連續的規定虛擬記錄單元4 0，針對此虛 擬記錄單元4 0來設定雷射束的基準照射時間t A〜t G ο 其結果如第5圖的時間圖所不，配合調制原資訊而獲 得的位元歹[J { Β、Ε、D、C、G、G.......丨，對各 經濟部智慧財產局員工消費合作社印製 單元時間Τ 1、Τ 2、Τ 3......分配記錄照射時間{ tB、 tE、 tD、 tC、 tG、 tG、......}。再者 ’此例是表示由各單元時間T的前頭，來設定記錄照射時 間t (就是前端基準），但在各單元時間T的中央，來設 定記錄照射時間（中間基準），或以各單元時間τ的後側 爲基準，來設定記錄照射時間（後端基準）亦可。 其次，規定所定的冷却時間R，而連續的附加在於各 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -13- 1227472 A7 __ B7 ___ 五、發明説明（11 ) 記錄照射時間t之後。 (請先聞讀背面之注意事項再填寫本頁) 更在該些記錄照射時間t與冷却時間R以外的所用空 白時間，設定待機時間g。 就是本實施形態的待機時間{ g 1、g 2，g 3 ’ g 4，g 5，g 6.......}是從各單元時間丨T 1， T 1 ，τ 3，T 4，T 5，T 6 .......丨減去記錄照射 時間{ t Β，t Ε，t D，t C，t G，t G }及冷却時 間丨R，R，R，R，R，R }的結果，成爲 { Τ - ( t Β + R ) ，T—(tE+R) ，T—(tD + R ) ，T—(tC + R) ，T— (tG + R)， T 一（ t G + R )丨。結局成爲記錄照射時間t A〜t G 愈長待機時間g愈短的設定。 結果就可獲得如第6圖所示的時間圖。按此該時間圖 ，針對記錄照射時間t ，以記錄功率K來照射雷射束，實 際形成記錄標記4 8 A〜4 8 G，如果冷却時間R以淸除 功率C進行照射，待機時間g以待機功率T進行照射，就 能將各記錄單元4 0設定在希望的光反射率。 經濟部智慧財產局員工消費合作社印製 再者，該記錄標記4 8A〜4 8 G不是形成在雷射束 的聚束光點全體，而是形成在中心部（雷射束爲圓形，但 因一邊旋轉碟片1 0 —邊照射雷射束，所以記錄標記配合 照射時間成爲長圓形）。 其原因是所聚焦的雷射束一般是呈高斯分佈，但就記 錄層1 2來看，因爲只用超過雷射束的照射能量的臨限値 的部分來執行記錄，所以能由中心依序向外側擴張地形成 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇χ297公着） -14- 1227472 A7 B7 五、發明説明（12 ) (請先閱讀背面之注意事項再填寫本頁) 記錄標記4 8 A〜4 8 G。藉此例如第4圖所示，可針對 虛擬記錄單元4 0而形成佔有率不同的7段記錄標記4 8 A 〜4 8 G 〇 此時’記錄標4 8 A〜4 8 G的各大小，是設定成 讀出虛擬記錄單元4 0，照射雷射束時的反射光的光反射 率爲7段。前述光反射率則是記錄標記愈小反射率愈大， 未形成記錄標記的虛擬記錄單元成爲最大的反射率，形成 最大記錄標記4 8 G的虛擬記錄單元成爲最小的反射率。 更詳細是認爲前述光反射率也包括各記錄標記4 8 A〜 4 8 G的光透過率，並以相對於虛擬記錄單元4 0的佔有 率而決定的。 再者，記錄標記4 8 A〜4 8 G本身的光透過率會因 構成記錄層1 2的材料經由雷射束的照射而分解變質，且 會因其折射率變化的情形，或記錄層1 2厚度方向的變化 量而異。如果所形成的記錄標記部分的光透過率爲零，就 不考慮這部分，只按照上述佔有率。 經濟部智慧財產局員工消費合作社印製 如果按照上述實施形態的記錄手法就能控制照射時間 ，達成5階段以上的多階段記錄。因爲更在所分配的各記 錄照射時間t A〜t G之後，設定利用淸除功率c來照射 雷射束的冷却時間R，所以供給到各虛擬記錄單元4 0的 熱量會馬上減少而使光反射率收束的所希望的數値中。此 乃能針對各級數的目標光反射率減低實際的光反射率誤差 的意思。 又，因爲經過所定的冷却時間R後，利用比淸除功率 ^氏張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -15- 1227472 A7 B7 _ -- ------------ … — __________ ----- - ______ _ 一 五、發明説明（13 ) C更大的待機功率τ，於待機時間g中照射雷射束，所以 能防止雷射裝置3 6極端的降低溫度。其結果，下一個記 錄照射時間t A〜t G的照射開始時的雷射束的功率的前 緣變快，會馬上移行到記錄功率K。 由以上觀點即知，冷却時間R會在雷射裝置3 6變爲 所定的溫度臨限値以下的時候而結束，然後可用待機功率 T來維持其溫度。 因而在事先準備在光記錄媒體1 〇的內周側的測試記 錄區域，可變地設定冷却時間R而重複進行記錄試驗，就 可在記錄實際資訊之前，恰當的設定可獲得良好光反射率 的冷却時間。 再者，此例是表示在各階段的照射時間t A〜t G之 後’設設冷却時間R和待機時間g的情形，但認爲連帶提 尚記錄密度，單兀時間T變短的話，至少利用最長的記錄 照射時間t G和冷却時間R，單元時間寸變得剛剛好。此 時待機時間g可設定爲零。 按照以上抑制光反射率誤差（偏移）的話，級數的階 段寬度變小，就能增加總合級數數量（此例爲A〜G 7段 )，提高光學記錄媒體的記錄密度。 又’本實施形態例主要是針對光記錄媒體1 〇的記錄 層1 2是用有機染料材料所構成，用來執行c D - R功能 的情形做一說明，但使用記錄層是採用相變化記錄層的 C D - R W型的光記錄媒體的情形下，例如利用記錄功率 K的雷射束照射使記錄層變化爲非晶質，且利用淸除功率 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ' (請先閱讀背面之注意事項再填寫本頁) 装·When the actual information is recorded on the optical recording medium 10, the unit time T is set. As described, the virtual recording unit 40 is continuously specified. For this virtual recording unit 40, the reference irradiation time t A to t G of the laser beam is set. ο The results are as shown in the time chart in Figure 5. The bits obtained by modulating the original information 歹 [J {Β, Ε, D, C, G, G ....... 丨, Intellectual Property Bureau employee consumer cooperative printing unit time T1, T2, T3 ... Allocation record exposure time {tB, tE, tD, tC, tG, tG, ...}. Furthermore, 'this example shows that the recording irradiation time t (the front end reference) is set from the head of each unit time T, but the recording irradiation time (intermediate reference) is set at the center of each unit time T, or each unit The rear side of time τ is used as a reference, and the recording irradiation time (back-end reference) may be set. Second, the prescribed cooling time R is specified, and the continuous addition is that each paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -13- 1227472 A7 __ B7 ___ V. Description of the invention (11) Recording the irradiation time after t. (Please read the precautions on the reverse side before filling out this page.) In addition, record the blank time other than the irradiation time t and cooling time R, and set the standby time g. That is, the standby time {g 1, g 2, g 3 'g 4, g 5, g 6 ....} of this embodiment is the time from each unit 丨 T 1, T 1, τ 3, T 4 , T 5, T 6... 丨 minus the recorded irradiation time {t Β, t Ε, t D, t C, t G, t G} and cooling time 丨 R, R, R, R, The result of R, R} becomes {Τ-(t Β + R), T— (tE + R), T— (tD + R), T— (tC + R), T— (tG + R), T one (t G + R) 丨. The ending is a setting in which the standby time g is shorter as the recording irradiation time t A to t G is longer. As a result, the timing chart shown in FIG. 6 is obtained. According to this time chart, for the recording irradiation time t, the laser beam is irradiated with the recording power K, and the recording marks 4 8 A to 4 8 G are actually formed. If the cooling time R is irradiated with the erasing power C, the standby time g is When the standby power T is irradiated, each recording unit 40 can be set to a desired light reflectance. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the record marks 4 8A to 4 8 G are not formed at the entire spot of the laser beam, but are formed at the center (the laser beam is circular, but (Because the disc 10 is rotated while illuminating the laser beam, the recording mark becomes oblong in accordance with the irradiation time). The reason for this is that the focused laser beam generally has a Gaussian distribution. However, as far as the recording layer 12 is concerned, since only the part exceeding the threshold value of the irradiation energy of the laser beam is used for recording, it can be sequentially performed from the center. Expansion of the terrain cost to the outside of the paper scale applies Chinese National Standard (CNS) A4 specifications (21 × 297297) -14- 1227472 A7 B7 V. Description of the invention (12) (Please read the precautions on the back before filling this page) Record Mark 4 8 A ~ 4 8 G. In this way, for example, as shown in FIG. 4, seven segments of recording marks 4 8 A to 4 8 G with different occupancy rates can be formed for the virtual recording unit 40. At this time, the sizes of the recording marks 4 8 A to 4 8 G, It is set to read out the virtual recording unit 40 and the light reflectance of the reflected light when the laser beam is irradiated is 7 steps. The aforementioned light reflectance means that the smaller the recording mark, the greater the reflectance. The virtual recording unit without the recording mark becomes the maximum reflectance, and the virtual recording unit forming the maximum recording mark 4 8 G becomes the smallest reflectance. In more detail, it is considered that the light reflectance also includes the light transmittance of each of the recording marks 4 8 A to 4 8 G, and is determined by the occupation ratio with respect to the virtual recording unit 40. In addition, the light transmittance of the recording marks 4 8 A to 4 8 G itself may be decomposed and deteriorated due to the material constituting the recording layer 12 being irradiated by the laser beam, and the refractive index may change, or the recording layer 1 may change. 2The amount of change in the thickness direction varies. If the light transmittance of the formed recording mark portion is zero, this portion is not considered and only the above-mentioned occupancy ratio is used. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs If the recording method according to the above-mentioned embodiment can be used to control the exposure time, a multi-stage recording of more than 5 stages can be achieved. Since the cooling time R for irradiating the laser beam with the erasing power c is set after the assigned recording irradiation time t A to t G, the heat supplied to each virtual recording unit 40 will be reduced immediately and the light will be reduced. The desired number of reflectance bunches. This is to reduce the actual light reflectance error for the target light reflectance of each level. In addition, after the specified cooling time R, the power is used to divide the power ^ 's scale to apply the Chinese National Standard (CNS) A4 specification (210X297 mm) -15- 1227472 A7 B7 _-------- -----… — __________ ------______ _ 15. Explanation of the invention (13) C. Larger standby power τ, which irradiates the laser beam during the standby time g, so it can prevent the laser device 3 6 Extremely reduced temperature. As a result, the leading edge of the laser beam power at the start of the next recording irradiation time t A to t G becomes faster, and immediately moves to the recording power K. From the above point of view, it is known that the cooling time R ends when the laser device 36 becomes below a predetermined temperature threshold, and then the standby power T can be used to maintain its temperature. Therefore, in the test recording area on the inner peripheral side of the optical recording medium 10 is prepared in advance, the cooling time R is variably set and the recording test is repeated, and before the actual information is recorded, the appropriate setting can obtain a good light reflectance. Cooling time. In addition, this example shows a case where the cooling time R and the standby time g are set after the irradiation time t A to t G in each stage. However, it is considered that the recording density is increased and the unit time T becomes shorter. With the longest recording irradiation time t G and cooling time R, the unit time becomes just right. At this time, the standby time g can be set to zero. By suppressing the optical reflectance error (offset) as described above, the width of the number of stages becomes smaller, and the total number of stages can be increased (in this example, A to G 7 stages), and the recording density of the optical recording medium can be increased. Also, this embodiment is mainly directed to the case where the recording layer 12 of the optical recording medium 10 is made of an organic dye material and is used to perform the c D-R function, but the phase change recording is used for the recording layer. In the case of a CD-RW optical recording medium with a single layer, for example, the recording layer is changed to an amorphous state by laser beam irradiation with a recording power K, and the erasing power is used. (210X297mm) '(Please read the precautions on the back before filling this page)
、1T 經濟部智慧財產局員工消費合作社印製 -16 - 1227472 A7 ___B7__ 五、發明説明（14 ) C的照射’在記錄層沒有發生任變化，更設定成利用待機 功率T的雷射束照射使記錄層變成結晶質的話，依然會發 生上述的優點，進行追記式多階段記錄資訊。理所當然的 本發明也可爲C D - R/RW以外的光記錄媒體。 又，本實施形態例乃如第4圖所示，就算形成讀取雷 射的聚光光束的直徑D以下的長度的記錄標記（此例是所 有的記錄標記4 8 A〜4 8 G )也能充分地讀取資料。此 結果與習知做比較能飛躍性地提高相當於單位面積的記錄 密度。 再者’本實施形態例是表示所有的記錄標記爲聚光光 束的直徑D以下，但本發明並不限於此，也包括只有記錄 標記的一部分爲直徑D以下，或者所有的記錄標記爲聚光 光束直徑D以上。 又’上述光記錄裝置3 0是表示利用雷射驅動器3 8 來設定雷射裝置3 6的雷射束照射功率，或設定其照射時 間的情形’但本發明只要結果能控制雷射束的「照射」就 足夠’例如也可使用能調制聚束光的透過情形的遮斷器來 控制雷射束。 上述實施形態例中，記錄層1 2是採用 啉藍等有機 染料’但本發明並不限於此，也可爲上述以外的有機染料 或無機材料，而且也可適當使用其他的材料。但使用如上 所述的有機染料時，配合雷射束爲5階段以上的照射功率 ’確貫改變記錄標記的大小就能記錄，還能用極高的精度 來讀取。 本紙張尺度適用中國國家標準（CNS ) A4規格( 210X297公釐） ' • 17 - (請先閲讀背面之注意事項再填寫本頁) .裝· 加 經濟部智慧財產局員工消費合作社印製 1227472 A7 ___B7 五、發明説明（15) (請先閲讀背面之注意事項再填寫本頁) 更又在利用上述光學記錄裝置3 0形成記錄標記時， 叹定在記錄層1 2上的虛擬記錄單元4 0的尺寸，並不限 於實施形態例。尤其只要能將雷射束的光束寬度縮得更小 ’長度等於溝槽1 6的寬度即可。其中一方，在8階段等 更多段記錄著記錄標記的情形下，也可設定在雷射束寬度 以上。此時，某一部分的記錄標記可爲光束寬度以上的大 小。理所當然本發明也適用於D V D構造的碟片，甚至連 沒有溝槽1 6的光學記錄媒體也適用本發明。 又，前述雷射束在記錄層1 2的位置是呈圓形，但這 是如第7圖所示，例如在物鏡4 2 A加上光束整形稜鏡 4 2 C或光圈（圖示省略），光束形狀可成爲記錄媒體 1 0的移送方向短，與此垂直的方向長的長圓形狀或線狀 。此時，記錄標記4 9變短，虛擬記錄單元就變得更短。 亦即可提高記錄密度。 經濟部智慧財產局員工消費合作社印製 更且，該光學記錄媒體1 0於第1圖中是以符號5 2 表示，可事先設有配合信號調制的段數數量的反射率不同 的複數凹坑，或者也可事先在該光學記錄媒體的一部分， 利用本發明的光學記錄方法來執行多階段記錄。可在該些 複數凹坑5 2及/或多階段記錄過的部分的記錄標記5 4 ，記錄個別識別該記錄媒體的資訊、識別多階段記錄用光 學記錄媒體的資訊、供決定記錄再生該記錄媒體的雷射束 的記錄照射時間的資訊、決定待機時間的資訊等等的特定 資訊。於該光學記錄媒體再生及/或記錄時讀入該特定資 訊，藉此確實地識別多階段記錄用光學記錄媒體，或者個 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -18- 1227472 Α7 Β7 經濟部智慧財產局員工消費合作社印製 五、發明説明（16 ) 別識別該些，就能更確實的執行多階段記錄、再生。 通常CD — R/ rW和DVD — r/rw用的媒體， 是能令sH錄溝槽蛇行（蛇行軌）而輸入信號。該信號稱爲 位址信號’記錄裝置是讀取該信號，朝向決定記錄磁頭的 位置移動。 例如C D - R / R W時，在該位址信號記錄著將位置 置換爲時間的分、秒時間代碼。記錄裝置是讀取該時間代 碼，將磁頭移動到讀入部分，讀取各種資料。 本發明的多階光學記錄媒體是使用應用C D - R / R W的記錄裝置（記錄、再生）時，可採用經由蛇行軌引 起的位址信號。但通常與C D - R / R W的時間代碼相異 ’是採用位址代碼等信號方式。通常記錄裝置不會讀取與 C D - R / R W相異的位址信號，不會將磁頭移動到所定 位置。（此時，多階段記錄光媒體可由記錄裝置排出）一 方面，配合多階段記錄的記錄裝置，只要是可辨識地設定 該特殊的位址，就能將磁頭移動到讀入部分，讀出信號。 就是多階光學記錄媒體是採用與平常相異的位址，藉 此與其他光學記錄媒體做一區分。 利用上述蛇行軌的記錄，例如像是第8圖所示，是藉 由調制光學記錄媒體1 0的讀入區1 0 2的溝槽1 0 4 A 〜1 0 4 C的蛇行軌所完成。 具體是如第9圖所示，蛇行軌的振幅w b不變，改變 各溝槽1 04A、1 04B、1 04C的蛇行軌周期Τα、 Τ β、T c。例如以第8圖所示的使用者區域1 〇 6的溝槽 本紙張尺度適用中國國家標準（CNS ) Α4規格（210 X 297公釐） Γ請先閑讀背面之注意事項再填寫本頁) 裝· 訂 加 1227472 A 7 B7 五、發明説明（17) 1 6的蛇行軌周期T。爲基本周期，載入表示比基本周期長 的蛇行軌周期τ B爲「1」、短的蛇行軌周期T A、T C爲 「0」的2値信號，來記錄上述各種資訊。因而，例如蛇 行軌周期，如上所述，從光學記錄媒體的內周側爲「0」 、「1」、「0」時，該光學記錄媒體1 0是表示多階段 記錄用的媒體。 又，如上所述，以事·先決定的資訊做爲記錄開始位置 資訊，根據該資訊從使用者區域1 0 6的所定位置開始記 錄。此亦成爲虛擬記錄單元4 0的開始位置的資訊。 又，上述各種資訊的其他記錄方法之例子，乃如第 1 0圖所示，上述各種資訊載置於形成在各溝槽1 6間的 凸軌1 7的凸軌前置凹坑1 7 A，例如凸軌前置凹坑間的 周期短時爲「1」，長時爲「0」來進行2値記錄，更且 ，其他例子，乃如第9圖或第1圖中以符號5 6所示，中 途切開溝槽1 6 ，中途切開的溝槽長度例如短時以「1」 表示、長時以「0」表示。 利用上述第8圖、第1 0圖、第1 1圖所示的資訊記 錄手段所產生的資訊，就連利用習知的2値記錄型的再生 裝置也能進行讀取，藉此就算該多階光學記錄媒體有誤， 塡裝在2値記錄型的再生及/或記錄裝置，也很容易就能 判明此爲多階型。 更且，上述各種資訊，例如像是第1 2圖所示，能事 先對讀入區1 0 2進行多階段記錄。此時，於第1 2圖中 ，可利用最初的5個虛擬記錄單元4 0 1〜4 0 5的記錄 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) •裝· 、11 經濟部智慧財產局員工消費合作社印製 -20- 1227472 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（18 ) 標記，利用多階段記錄媒體及多階段記錄的段數、下5個 虛擬記錄單元4 0 6〜4 1 0的記錄標記各別記錄進行記 錄或再生的建議雷射功率等。該些方法可單獨或組合利用 〇 按照有關本發明的光學記錄方法及光學記錄媒體，就 能配合提供記錄的資料進行多階段記錄，更能令來自其記 錄標記的讀取信號的特性變良好。 【圖面說明】 第1圖是表示有關本發明的實施形態例的光學記錄媒 體的主要部分的一部分斷面的立體圖。 第2圖是表示對同一光學記錄媒體利用雷射束來記錄 資訊的光學記錄裝置的方塊圖。 第3圖是表示包括在同一光學記錄裝置的照射指示裝 置的構成的方塊圖。 第4圖是表示利用同一光學記錄裝置在記錄層形成記 錄標記時的該記錄標記與虛擬記錄單元及其光反射率的關 係的模式圖。 第5圖是表示利用同一光學記錄裝置在記錄層形成記 錄標記時的雷射束照射的時間圖的產生過程的線圖。 第6圖是利用同光學記錄裝置在記錄層形成記錄標記 時的雷射束照射的最終時間圖。 第7圖是表示照射虛擬記錄單元的雷射束爲其他形狀 的略示立體圖。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 一 ---- (請先閱讀背面之注意事項再填寫本頁) 裝· 訂 -21 - 1227472 A7 B7 五、發明説明（19) 第8圖是放大表示事先記錄本發明的光記錄媒體的各 種資訊的蛇行軌的模式圖。 第9圖是表示同蛇行軌的蛇行軌周期與2値信號的關 係的線圖。 第1 0圖是表示記錄本發明的光記錄媒體的各種資訊 的凸軌前置凹坑與2値信號的關係的模式圖。 第1 1圖是表示記錄本發明的光記錄媒體的各種資訊 而中途切開的蛇行軌的長度與2値信號關係的模式圖。 第1 2圖是表示記錄本發明的光記錄媒體的各種資訊 的虛擬記錄單元與記錄標記的模式圖。 (請先聞讀背面之注意事項再填寫本頁) •裝· 【符號說明】 10 12 14 16 18 2〇 、?! 經濟部智慧財產局員工消費合作社印製 3 2 3 4 3 6 3 8 光記錄媒體（碟片） 記錄層 基板 溝槽 反射膜 保護層 光記錄裝置 主軸伺服器 主軸馬達 碟片 雷射裝置 雷射驅動器 本紙張尺度適用中國國家榡準（CNS ) A4規格（210X 297公釐） -22- 1227472 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（20 ) 3 9 照 射 時 間控 制 裝 置 4 〇 虛 擬 記 錄單 元 4 2 記 錄 光 學系 統 4 2 A 物 4 2 B 稜 鏡 4 2 C 光 束 整 形稜 鏡 4 4 聚 焦 尋 軌伺 服 器 4 6 運 送 伺 服器 4 8 A 〜4 8 G 記 錄 標 記 4 9 記 錄 標 記 5 〇 控 制 裝 置 5 2 凹 坑 5 4 記 錄 標 記 6 0 單 元 時 間設 定 部 6 2 基 準 昭 J ^ NN 射時 間 設 定部 6 4 分 配 處 理部 6 6 冷却 時 間算 出 部 6 8 待 機 時 間算 出 部 1 〇 2 讀 入 區 1 〇 6 使 用 者 區域 4 〇 1 〜4 1 0 虛 擬 記 錄單 元 (請先閲讀背面之注意事項再填寫本頁) 裝· 訂 .加 本紙張尺度適用中國國家標準（CNS )娜⑺0X297公羞）—23 _Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -16-1227472 A7 ___B7__ 5. Description of the Invention (14) The irradiation of C has not changed in the recording layer, and is set to use the laser beam irradiation with standby power T to make When the recording layer becomes crystalline, the above-mentioned advantages will still occur, and multi-stage recording information will be recorded. Naturally, the present invention may be an optical recording medium other than CD-R / RW. In this embodiment, as shown in FIG. 4, even if a recording mark having a length equal to or smaller than the diameter D of the focused laser beam for reading the laser is formed (in this example, all the recording marks 4 8 A to 4 8 G) are formed. Able to fully read the data. This result can dramatically increase the recording density equivalent to a unit area compared with the conventional one. Furthermore, in this embodiment, all the recording marks are smaller than the diameter D of the focused light beam, but the present invention is not limited to this. It also includes that only a part of the recording marks is smaller than the diameter D, or that all the recording marks are focused. Beam diameter D or more. It is also said that the above-mentioned optical recording device 30 is a case where the laser driver 36 is used to set the laser beam irradiation power or the irradiation time of the laser device 36, but as long as the result of the present invention can control the laser beam " "Irradiation" is sufficient. For example, a laser beam can be controlled using a shutter that can modulate the transmission of the focused light. In the above-mentioned embodiment, the recording layer 12 is made of an organic dye such as phospholine blue. However, the present invention is not limited to this. It may be an organic dye or an inorganic material other than the above, and other materials may be used as appropriate. However, when using an organic dye as described above, it is possible to record with a laser beam having an irradiation power of 5 steps or more, and it is possible to read with extremely high accuracy. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) '• 17-(Please read the precautions on the back before filling out this page). Packing · Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Consumption Cooperative, 127472 A7 ___B7 V. Description of the invention (15) (Please read the notes on the back before filling in this page) And when using the optical recording device 3 0 to form the recording mark, the virtual recording unit 4 0 on the recording layer 12 The dimensions are not limited to the embodiment examples. In particular, as long as the beam width of the laser beam can be reduced, the length is equal to the width of the groove 16. One of them may be set to a laser beam width or more when recording marks are recorded in eight or more stages. At this time, a certain portion of the recording mark may be a size larger than the beam width. It is a matter of course that the present invention is also applicable to a disc having a D V D structure, and even the optical recording medium without the groove 16 is also applicable to the present invention. The position of the laser beam in the recording layer 12 is circular, but as shown in FIG. 7, for example, an objective lens 4 2 A is added with a beam shaping 稜鏡 4 2 C or an aperture (not shown). The shape of the light beam may be an oblong shape or a linear shape in which the transfer direction of the recording medium 10 is short and the direction perpendicular thereto is long. At this time, the recording mark 49 becomes shorter, and the virtual recording unit becomes shorter. That is, the recording density can be increased. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The optical recording medium 10 is represented by the symbol 5 2 in the first figure. A plurality of pits with different reflectances can be provided in advance in accordance with the number of segments to be modulated by the signal Alternatively, the optical recording method of the present invention may be used to perform multi-stage recording on a part of the optical recording medium in advance. The plurality of pits 5 2 and / or the recording marks 5 4 of the recorded portions may be used to record information that individually identifies the recording medium, to identify information of the optical recording medium for multi-stage recording, and to determine the recording and reproduction of the recording. The laser beam of the media records specific information such as irradiation time information, information determining the standby time, and the like. When the optical recording medium is reproduced and / or recorded, the specific information is read in, so as to reliably identify the multi-stage recording optical recording medium, or the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm)- 18- 1227472 Α7 Β7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (16) Do not identify these, you can more accurately perform multi-stage recording and reproduction. Usually CD-R / rW and DVD-r / rw use sH to record grooves (snake track) and input signals. This signal is called an address signal. The recording device reads this signal and moves it toward the position that determines the recording head. For example, in the case of CD-R / RW, a time code of minute and second in which the position is replaced by time is recorded at the address signal. The recording device reads the time code, moves the magnetic head to the reading portion, and reads various data. When the multi-level optical recording medium of the present invention uses a recording device (recording, reproduction) using CD-R / RW, an address signal caused by a meandering track can be used. However, it is usually different from the time code of CD-R / RW. It is a signal method such as an address code. Normally, the recording device does not read address signals different from CD-R / R W and does not move the magnetic head to a predetermined position. (At this time, the multi-stage recording optical medium can be ejected by the recording device.) On the one hand, with the multi-stage recording recording device, as long as the special address is identifiably set, the magnetic head can be moved to the reading portion and the signal can be read out. . That is, the multi-level optical recording medium adopts an address different from usual, thereby distinguishing it from other optical recording media. Recording using the above-mentioned meandering track is performed, for example, as shown in FIG. 8 by modulating the meandering track 1 0 4 A to 1 0 4 C of the read-in area 10 of the optical recording medium 10. Specifically, as shown in FIG. 9, the amplitude w b of the meandering track does not change, and the meandering track periods τα, Τβ, and Tc of each of the grooves 104A, 104B, and 104C are changed. For example, the grooves in the user area 1 06 shown in Figure 8 are in accordance with the Chinese National Standard (CNS) A4 size (210 X 297 mm). Γ Please read the precautions on the back before filling in this page.) Assembling and ordering 1227472 A 7 B7 V. Description of invention (17) 16 Snake track period T. It is a basic period, and a 2 値 signal indicating that the meandering period τ B longer than the basic period is “1” and the short meandering period T A, T C is “0” is loaded to record the above-mentioned various kinds of information. Therefore, for example, in the meandering cycle, when the inner peripheral side of the optical recording medium is "0", "1", and "0" as described above, the optical recording medium 10 is a medium for multi-stage recording. As described above, the information determined first is used as the recording start position information, and recording is started from a predetermined position in the user area 106 based on the information. This also becomes the information of the start position of the virtual recording unit 40. In addition, as shown in FIG. 10, examples of other recording methods of the above-mentioned various kinds of information are described above. The above-mentioned various kinds of information are placed on the pre-pits 1 7 A of the projections of the projections 17 formed between the grooves 16 For example, the period between the pre-pits of the track is "1" for a short time and "0" for a long time to perform 2 値 recording, and other examples are shown in Figure 9 or Figure 1 with the symbol 5 6 As shown in the figure, the trench 16 is cut halfway, and the length of the cut halfway is, for example, "1" for short time and "0" for long time. Using the information generated by the information recording means shown in Figs. 8, 10, and 11 described above, it is possible to read even a conventional 2 値 record-type reproduction device. There is an error in the high-order optical recording medium, and it is easy to determine that this is a multi-stage type when it is mounted in a 2 値 recording type reproduction and / or recording device. In addition, the above-mentioned various kinds of information, for example, as shown in FIG. 12, can be recorded in a multi-stage in the read-in area 102 beforehand. At this time, in the 12th picture, the first 5 virtual recording units 4 0 1 to 4 0 5 can be used. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the back first) Please pay attention to this page and fill in this page again) • Equipment · 11 Printed by the Consumers 'Cooperative of the Intellectual Property Bureau of the Ministry of Economics -20- 1227472 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economy A7 B7 The number of segments of the stage recording medium and multi-stage recording, the recommended laser power of the next 5 virtual recording units 406 to 4 10, and the respective recording marks for recording or reproduction. These methods can be used singly or in combination. According to the optical recording method and the optical recording medium of the present invention, multi-stage recording can be performed in conjunction with providing the recorded data, and the characteristics of the read signal from the recording mark can be made better. [Description of Drawings] Fig. 1 is a perspective view showing a partial cross section of a main part of an optical recording medium according to an embodiment of the present invention. Fig. 2 is a block diagram showing an optical recording device for recording information using a laser beam on the same optical recording medium. Fig. 3 is a block diagram showing a configuration of an irradiation instruction device included in the same optical recording device. Fig. 4 is a schematic diagram showing the relationship between a recording mark and a virtual recording unit and its light reflectance when a recording mark is formed on a recording layer by the same optical recording device. Fig. 5 is a line chart showing a generation process of a time chart of laser beam irradiation when a recording mark is formed on a recording layer by the same optical recording device. Fig. 6 is a graph showing the final timing of laser beam irradiation when a recording mark is formed on a recording layer using the same optical recording device. Fig. 7 is a schematic perspective view showing that the laser beam irradiating the virtual recording unit has another shape. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) I ---- (Please read the precautions on the back before filling this page) Binding · Order -21-1227472 A7 B7 V. Description of the invention (19 FIG. 8 is a schematic diagram showing an enlarged meandering track in which various information of the optical recording medium of the present invention is recorded in advance. Fig. 9 is a graph showing the relationship between the meandering period of the meandering orbit and the 2 値 signal. Fig. 10 is a schematic diagram showing the relationship between the track pre-pits and the 2 値 signal in which various information of the optical recording medium of the present invention is recorded. FIG. 11 is a schematic diagram showing the relationship between the length of a meandering track cut in the middle and the 2 値 signal when various information of the optical recording medium of the present invention is recorded. Fig. 12 is a schematic diagram showing a virtual recording unit and recording marks for recording various information of the optical recording medium of the present invention. (Please read the precautions on the back before filling out this page) • Equipment · [Symbols] 10 12 14 16 18 2〇,?! Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 3 2 3 4 3 6 3 8 Light Recording medium (disc) Recording layer substrate groove reflective film protective layer optical recording device spindle server spindle motor disk laser device laser driver This paper size applies to China National Standard (CNS) A4 (210X 297 mm) -22- 1227472 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (20) 3 9 Irradiation time control device 4 〇 Virtual recording unit 4 2 Recording optical system 4 2 A object 4 2 B 稜鏡 4 2 C Beam shaping 稜鏡 4 4 Focus tracking server 4 6 Transport server 4 8 A ～ 4 8 G Record mark 4 9 Record mark 5 〇 Control device 5 2 Pit 5 4 Record mark 6 0 Unit time setting section 6 2 Reference Zhao J NN Shooting time setting unit 6 4 Distribution processing unit 6 6 Cooling time calculation 6 8 Standby time calculation unit 1 〇2 Read-in area 1 〇6 User area 4 〇1 ~ 4 1 0 Virtual recording unit (please read the precautions on the back before filling out this page) China National Standards (CNS) Na⑺0X297 Public shame) — 23 _