TW200834557A - Unstructured multilayer optical discs and recording method - Google Patents
Unstructured multilayer optical discs and recording method Download PDFInfo
- Publication number
- TW200834557A TW200834557A TW96134055A TW96134055A TW200834557A TW 200834557 A TW200834557 A TW 200834557A TW 96134055 A TW96134055 A TW 96134055A TW 96134055 A TW96134055 A TW 96134055A TW 200834557 A TW200834557 A TW 200834557A
- Authority
- TW
- Taiwan
- Prior art keywords
- record carrier
- recording
- data
- layer
- unstructured
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
- G11B7/0903—Multi-beam tracking systems
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24047—Substrates
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
200834557 九、發明說明： 【發明所屬之技術領域】 本發明係關於多層光碟，且更明確言之，係關於非結構 化多層光碟。 【先前技術】 美國專利第5646932號揭示一光碟、一循執誤差信號產 生裝置及一循軌控制裝置，其中循軌誤差信號可能易於在 一其中磁軌間距變得比藉由讀取雷射束形成之一光點的直200834557 IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The present invention relates to multilayer optical discs and, more specifically, to unstructured multilayer optical discs. [Prior Art] U.S. Patent No. 5,664,932 discloses an optical disc, a tracking error signal generating device and a tracking control device, wherein the tracking error signal may be prone to a track pitch in which the scanning beam is read by Forming a straight spot
ϋ 徑更窄的狀悲中產生。在多層可記錄光碟之情況下，係需 要複製軌溝用於循軌目的。需要在極薄之分離層中複製槽 紋。该等分離層係微米之量級，使其難以將執溝複製進入 記錄層内。 較佳係具有一種記錄載體，其允許易於形成該等記錄 層。較佳係具有一種用於在此一記錄載體上記錄資料的方 法。 【發明内容】 所描述之一種記錄載體包含一光碟基板，其在該記錄載 體之至少一側上具有一或多個記錄層，其中該一或多個記 錄層係用於記錄資料之非結構化。 本發明描述一種在一記錄載體上記錄資料的方法。該記 錄載體包含-光碟基板’其在該記錄載體之至少一侧上具 有一或多個記錄層’其中該—或多個記錄層係用於記㈣ 料之非結構化。記錄㈣之枝包含以1定速率旋轉該 δ己錄載體，且在該記錄載體旋轉時使用一光束之主光點在 124876.doc 200834557 該非結構化的記錄層上寫人資料濾度（bHnd)。該方法進— 步包含當實質上完成該記錄載體之一轉數時藉由光束的一 衛星光點擷取該已寫人資料。該方法進-步包括在藉由該 光束之衛星光點擷取該已寫入資料後，持續使用該光束之 主光點寫入該資料。 【實施方式】The narrower path of sorrow produces. In the case of multi-layer recordable discs, it is necessary to duplicate the rails for tracking purposes. It is necessary to duplicate the grooves in the extremely thin separation layer. The separation layers are on the order of microns, making it difficult to replicate the grooves into the recording layer. It is preferred to have a record carrier which allows easy formation of the recording layers. Preferably, there is a method for recording data on such a record carrier. SUMMARY OF THE INVENTION A record carrier as described includes a disc substrate having one or more recording layers on at least one side of the record carrier, wherein the one or more recording layers are used to unstructure the recorded data . The present invention describes a method of recording data on a record carrier. The record carrier comprises - a disc substrate 'having one or more recording layers on at least one side of the record carrier' wherein the or more recording layers are used to unstructure the material. The branch of record (4) comprises rotating the δ record carrier at a constant rate, and using the main spot of a beam while the record carrier is rotating at 124876.doc 200834557 writing the data filter (bHnd) on the unstructured recording layer . The method further comprises extracting the written person data by a satellite spot of the light beam when substantially completing one of the number of revolutions of the record carrier. The method further includes, after extracting the written data by the satellite spot of the beam, continuously writing the data using the main spot of the beam. [Embodiment]
-種記錄載體(如跑、藍光光碟)包含依一連續螺旋形 式或多個同心圓形式之至少一磁軌，纟中資訊可依資料型 樣之形式儲存。該記錄載體可為—其中資訊可儲存或記錄 之可記錄（R)或可重寫（RW)類型，如dvd+rw、dvd RW、DVD+R、bd_re(依單層及多層形式）。 夕層可纪錄光碟具有用於循軌目的之執溝。該等轨溝需 要在極薄的分離層中複製。該等分離層對於藍光光碟（如 目前每一BD標準）係數十微米之量級。一般而言，對於 DVD及藍光光碟，一螺旋係藉由複製技術來定義。此係藉 著使用一含有該螺旋之模由壓力成型該光碟來進行。該^ 旋在ROM光碟之情況下可由訊坑組成，或在可記錄及可重 寫光碟之情況下為一連續執溝。在成型後，數層係沈積在 該螺旋結構上。所使用之層種類及沈積方法取決於光碟類 型。在藍光光碟之情況下，第二（所謂分離）層中之螺旋係 自一模藉由UV固化該UV可固化漆將其複製而製成。此係 一困難程序，因為必須保證分離層之平坦度用於讀出及記 錄。在完成複製程序前，該光碟需要用一保護層塗布。在 某些情況（如DVD)，兩半部（即，記錄層）係膠黏在一起。 124876.doc 200834557 此外，分離層中之螺旋的複製（在光碟製造期間）係困難 且麻煩。用於近場記錄之分離層將變得小許多，即僅數微 米而非數十微米厚。此可能使其難以將該螺旋複製至記錄 層内’同時仍保持層厚度在其極限内。因此，較佳將會是 具有一種允許易於形成記錄層的記錄載體。 A錄載體係經描述包含一光碟基板，其在該記錄載體之 至少一側上具有一或多個記錄層，其中該一或多個記錄層 係用於記錄資料之非結構化。 Ο u 業經提出不使用該預定義螺旋（預浮雕結構），而係將非 結構化的層（即無執溝的平坦層）用於可記錄及可重寫光 碟。此使得更容易實現多層光碟。光碟可藉由僅在一基板 上濺錢及旋塗该圮錄及分離層來產生。基板本身可仍具有 預疋義螺旋或可為平坦。 圖1概要說明一種四層記錄載體2之範例，其中該光碟基 板sb係非結構化（即，平坦無軌溝卜如圖1中顯示，該四個 記錄層L0、L1、LUL3係分別藉由分離層spi、sp2及咖 分離。-覆蓋層Cl係佈置於該頂部記錄扣上用於保護。 可從圖！觀察到’基板sb係平坦無軌溝。該等記錄層L〇、 L1、I^L3亦係非結構化（即平坦無執溝）。因此，該等記 錄層L0、LI、L2及L3的複製變得更容 T又谷易。此外，複製在 此係指在記錄載體製造期間複製記錄層之程序。 說:一種四層記錄載體2之另例。，其中光碟 土板吣、有軌溝。基板上之軌溝係用於循軌 板係藉由複製製造，其意指在基板 '"土 锻Τ I造一執溝係容易。 124876.doc- A record carrier (such as a running, Blu-ray disc) comprising at least one track in a continuous spiral or a plurality of concentric circles, the information in which the information can be stored in the form of a data type. The record carrier can be of the recordable (R) or rewritable (RW) type in which information can be stored or recorded, such as dvd+rw, dvd RW, DVD+R, bd_re (in single and multi-layer form). The eve-recordable disc has a ditch for tracking purposes. These rails need to be replicated in an extremely thin separation layer. The separation layers are on the order of ten micrometers for Blu-ray discs (as currently BD standards). In general, for DVDs and Blu-ray discs, a spiral is defined by replication techniques. This is carried out by pressure molding the optical disc using a mold containing the spiral. The ^ can be composed of a pit in the case of a ROM disc, or a continuous ditch in the case of a recordable and rewritable disc. After molding, several layers are deposited on the spiral structure. The type of layer used and the method of deposition depend on the type of disc. In the case of a Blu-ray disc, the spiral in the second (so-called separation) layer is made by replicating it by UV curing the UV curable lacquer. This is a difficult procedure because the flatness of the separation layer must be guaranteed for reading and recording. The disc needs to be coated with a protective layer before the copying process is completed. In some cases (such as DVD), the two halves (ie, the recording layer) are glued together. 124876.doc 200834557 Furthermore, the replication of the helix in the separation layer (during the manufacture of the disc) is difficult and cumbersome. The separation layer used for near-field recording will be much smaller, i.e., only a few micrometers rather than tens of micrometers thick. This may make it difficult to copy the spiral into the recording layer while still maintaining the layer thickness within its limits. Therefore, it would be preferable to have a record carrier which allows easy formation of a recording layer. The A-record carrier is described as comprising a disc substrate having one or more recording layers on at least one side of the record carrier, wherein the one or more recording layers are used to record the unstructured material. Ο u has proposed not to use this predefined spiral (pre-relief structure), but to use an unstructured layer (ie, a flat layer without a groove) for recordable and rewritable discs. This makes it easier to implement a multi-layer disc. The optical disc can be produced by splashing and spin coating the recording and separation layers on only one substrate. The substrate itself may still have a pre-spinning helix or may be flat. 1 schematically illustrates an example of a four-layer record carrier 2 in which the optical disk substrate sb is unstructured (ie, a flat trackless groove is shown in FIG. 1, and the four recording layers L0, L1, and LUL3 are separated by separation, respectively. The layers spi, sp2 and coffee are separated. The cover layer C1 is arranged on the top recording buckle for protection. It can be observed from the figure! 'The substrate sb is flat and no track groove. The recording layers L〇, L1, I^L3 It is also unstructured (that is, flat and unobtrusive). Therefore, the replication of the recording layers L0, LI, L2, and L3 becomes more T and easy. In addition, copying here refers to copying during the manufacture of the record carrier. The procedure of the recording layer. A further example of a four-layer record carrier 2, wherein the optical disk is sturdy and has a track groove. The track groove on the substrate is used for the tracking plate system to be manufactured by copying, which means that the substrate is '"土锻Τ I make it easy to build a ditch. 124876.doc
C 200834557 吏用土板中之執溝，循軌係容易且光碟機可使用具有軌溝 /執來進行些杈準(如可測量必須施加多少電壓以橫 越數個磁軌來沿循該磁執。當光碟機係在非具有軌溝層中、 寫入磁執時可使用該測量，以調整電壓傾斜以使其產生相 冋於有軌溝之基板具有的磁軌間距)。如圖2中顯示，四個 記錄層L0、L1、L2AL3係分別藉由分離層⑻、啦及邮 分離。一覆蓋層Cl係佈置於頂部記錄層L3上用於保護。可 從圖2觀察到，即該等記錄層U、L2及L3亦係非結構化（即 平坦無執溝）。因此，該等記錄層LI、L2及L3的複製變得 更容易。 圖3概要說明一光碟機j(如藍光光碟機）之一範例，其適 合將貧訊寫至記錄載體2上（參考圖1/g[2)(其典型為藍光光 碟）。為了旋轉記錄載體2,光碟機丨具有一馬達〇該馬達 典型係固定在一定義一旋轉軸5之框架。& 了容納並固持 記錄載體2’ ％碟機i可由—轉台或夾緊轂6構《，其在一 轉軸馬達4之情況中係安裝於馬達4的旋轉轴7上。光碟心 係用於記錄/讀取來自記錄載體2之資料。 光碟機!具有一光學系統3〇 ’其用於藉由一光束來掃描 記錄載體2之磁軌。更明確言之，光學系統3〇具有一光產 生器31(如雷射二極體)，其係配置以產生一光束32a。光束 32&通過一分光器33及一物鏡34。物鏡34將光束32b聚隹於 記錄載體2上。光束32b自記錄載體2反射（反射光束32e)並 通過物鏡34及分光器33(光束32d)，以到達一光學偵洌号 124876.doc 200834557 為了達到及維持光束32b正確聚焦在一所需位置上（記錄 載體2上），物鏡34係軸向可位移地安裝。另外，光碟機1 之致動器系統40包含下列各項： 1· 一徑向致動器41，其用於控制物鏡34之徑向位置； 2· 一聚焦致動裔42，其用於相對於記錄載體2之記錄表 考平面軸向地位移物鏡34 ;及 3. 一傾斜致動器43，其用於相對於記錄載體2樞轉物鏡 34 ° 應進一步注意，可將徑向致動器41、聚焦致動器42、及 傾斜致動器43實施為一整合式3D致動器。 光碟機1具有一控制電路90,其具有一第一輸出92，其 係連接至馬達4之一控制輸入；一第二輸出93，其係耦合 至徑向致動器41之一控制輸入；一第三輸出94，其係麵合 至聚焦致動器42之一控制輸入；一第四輸出95，其係輕合 至傾斜致動器43之一控制輸入。控制電路9〇係設計以產生 下列各項： 1 ·在其第一輸出92處產生一用於控制馬達4的控制信號 ScM ; 2.在其第二輸出93處產生一用以控制徑向致動器41之控 制信號SCR ; 3·在其第三輸出94處產生一用於控制聚焦致動器42之控 制信號SCF ;及 4·在其第四輸出95處產生一用於控制傾斜致動器43之控 制信號ScT。 124876.doc -9- 200834557 "亥控制電路90進一步具有一讀取信號輸入91，用以接收 來自光學偵測器35之一讀取信號Sr。 圖4说明光學偵測器35包含複數個偵測器片段，在此情 况下，四個偵測器片段35a、35b、35c及35d能提供個別偵 測器k號A、B、C及D，其分别指示入射在四個偵測器象 限之各者的光量。一中心線P將第一及第四片段35&及3兄 與第二及第三片段35b及35c分離。此外，光學偵測器35包 含兩個偵測器片段35e及35f，其可提供個別偵測器信號E 及F ’以指示入射在偵測器片段（即35e及35f)之各者上之光 量。再者，光學偵測器35包含兩個偵測器片段35g&35h， 其可提供個別偵測器信號G及Η，以指示入射在偵測器片 段（即35g及35h)之各者上之光量。圖4亦說明控制電路9〇之 讀取信號輸入91具有四個輸入91a、91b、91c、91d,其係 分別用於接收個別偵測器信號A、B、C及D。資料及控制 資訊係由個別偵測器信號導出，如熟習此項技術人士將會 明瞭。舉例來說，一資料信號、一循執信號及一聚焦誤差 信號可獲得如下： 資料=(A+B + C+D) 循執=[(A+D)-(B + C)]-k[(E+G)-(F+H)]，其中 k係一乘法因 子， 聚焦=(A+C)—(B+D)。 推挽方法及三個光束方法業經用作在記錄載體2上記錄 資料之伺服循軌方法。在該等方法中，一典型方法係一差 分推挽方法。 124876.doc -10- 200834557 差刀推挽方法之原理係在圖5中概要地說明。^—由光產 生器31產生的光束被分離成一主光束及側光束。該主光束 係聚焦成主光點Μ内而側光束被聚焦成記錄載體2上之側 光點S!及S2。此外，如圖5中顯示，記錄載體2上之主光點 Μ係藉由光接收區域a至D形成；側光點心係藉由光接收區 域E及F形成；且側光點心係藉由光接收區域〇及η形成。 來自主光點Μ及側光點§1與S2的反射光束係藉由光學偵測 ΟC 200834557 吏 吏 土 , , , 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 This measurement can be used when the optical disk drive is in a non-tracked layer and written to the magnetic pole to adjust the voltage tilt so that it produces a track pitch relative to the substrate of the track. As shown in Fig. 2, the four recording layers L0, L1, and L2AL3 are separated by a separation layer (8), a post, and a post, respectively. A cover layer C1 is disposed on the top recording layer L3 for protection. It can be observed from Fig. 2 that the recording layers U, L2 and L3 are also unstructured (i.e., flat without a groove). Therefore, the copying of the recording layers LI, L2 and L3 becomes easier. Figure 3 schematically illustrates an example of an optical disc drive j (e.g., a Blu-ray disc drive) that is suitable for writing poor traffic to the record carrier 2 (refer to Figure 1/g [2] (which is typically a Blu-ray disc). In order to rotate the record carrier 2, the optical disk drive has a motor which is typically fixed to a frame defining a rotary shaft 5. The accommodating and holding of the record carrier 2'% of the disk drive i can be constructed by the turret or the clamping hub 6, which is mounted on the rotary shaft 7 of the motor 4 in the case of the spindle motor 4. The disc heart is used to record/read data from the record carrier 2. The optical disk drive has an optical system 3' for scanning the magnetic track of the record carrier 2 by a light beam. More specifically, the optical system 3 has a light generator 31 (e.g., a laser diode) configured to generate a light beam 32a. The beam 32& passes through a beam splitter 33 and an objective lens 34. The objective lens 34 converges the light beam 32b on the record carrier 2. The light beam 32b is reflected from the record carrier 2 (reflected light beam 32e) and passes through the objective lens 34 and the beam splitter 33 (light beam 32d) to reach an optical detector number 124876.doc 200834557 in order to achieve and maintain the correct focus of the light beam 32b at a desired position. (on the record carrier 2), the objective lens 34 is axially displaceably mounted. Additionally, the actuator system 40 of the optical disk drive 1 includes the following: 1. A radial actuator 41 for controlling the radial position of the objective lens 34; 2. a focus actuating 42 for relative The objective lens 34 is axially displaced on the recording surface of the record carrier 2; and 3. a tilt actuator 43 for pivoting the objective lens 34 with respect to the record carrier 2. Further attention should be paid to the radial actuator. 41. The focus actuator 42 and the tilt actuator 43 are implemented as an integrated 3D actuator. The optical disk drive 1 has a control circuit 90 having a first output 92 coupled to a control input of the motor 4 and a second output 93 coupled to a control input of the radial actuator 41; A third output 94 is coupled to one of the control inputs of the focus actuator 42; a fourth output 95 that is coupled to one of the control inputs of the tilt actuator 43. The control circuit 9 is designed to produce the following: 1 - a control signal ScM for controlling the motor 4 is generated at its first output 92; 2. a radial effect is generated at its second output 93 The control signal SCR of the actuator 41; 3) generates a control signal SCF for controlling the focus actuator 42 at its third output 94; and 4 generates a control for tilt actuation at its fourth output 95 The control signal ScT of the device 43. 124876.doc -9- 200834557 " The sea control circuit 90 further has a read signal input 91 for receiving a read signal Sr from one of the optical detectors 35. 4 illustrates that the optical detector 35 includes a plurality of detector segments, in which case four detector segments 35a, 35b, 35c, and 35d can provide individual detectors K, A, B, C, and D, It indicates the amount of light incident on each of the four detector quadrants, respectively. A center line P separates the first and fourth segments 35 & and 3 brothers from the second and third segments 35b and 35c. In addition, optical detector 35 includes two detector segments 35e and 35f that provide individual detector signals E and F' to indicate the amount of light incident on each of the detector segments (ie, 35e and 35f) . Furthermore, the optical detector 35 includes two detector segments 35g & 35h that provide individual detector signals G and Η to indicate incident on each of the detector segments (ie, 35g and 35h). The amount of light. Figure 4 also illustrates that the read signal input 91 of the control circuit 9 has four inputs 91a, 91b, 91c, 91d for receiving individual detector signals A, B, C and D, respectively. Data and Control Information is derived from individual detector signals, as will be apparent to those skilled in the art. For example, a data signal, a circulatory signal and a focus error signal can be obtained as follows: Data = (A + B + C + D) Circulation = [(A + D) - (B + C)] - k [(E+G)-(F+H)], where k is a multiplication factor, focus = (A + C) - (B + D). The push-pull method and the three-beam method are used as servo tracking methods for recording data on the record carrier 2. Among these methods, a typical method is a differential push-pull method. 124876.doc -10- 200834557 The principle of the differential knife push-pull method is schematically illustrated in FIG. ^—The light beam generated by the light generator 31 is separated into a main beam and a side beam. The main beam is focused into the main spot and the side beam is focused to the side spots S! and S2 on the record carrier 2. Further, as shown in FIG. 5, the main spot on the record carrier 2 is formed by the light receiving regions a to D; the side light dessert is formed by the light receiving regions E and F; and the side light snack is by light The receiving areas 〇 and η are formed. The reflected beam from the main spot and the side spot §1 and S2 is optically detected.
器35光電轉換，使得推挽信號可針對光點μ、81及1獲 知。經光電轉換的信號係用於獲得光碟機1所需要之資料 及伺服信號，例如徑向、聚焦、及傾斜控制信號。須注意 在此之”主光點”指一中央光點或首要光點，而，，側光點，，指 衛星光點或子光點或次要光點。此外，光碟機丨之光學系 統30可適當地修改以形成主光點Μ及側光點&及h。 或者是，可根據一高頻相位偵測方法導出一循執信號。 來自元件35a及35c之偵測器信號被相加且放大。經放大輸 出係饋入-截fli中。截剪器債測該輸人信號之位準交越 點。來自元件35ba及35d之偵測器信號被相加且放大。經 放大輸出係饋入-截剪器中。截剪器之輸出信號被饋入一 相位比較H，其取決於該比較器的兩個輸人中之脈衝間的 相位產生-輸出信號。比較器之輸出信號係藉由一濾波器 遽波的低通1輸出信號係根據對角時差（dtd)方法 的循執信號。 2上記錄 1記錄载 -種根據本發明纟一範例非結構化之記錄 貝料的方法6000，係顯示在圖6中。在步驟6〇 124876.doc 200834557 旋轉’且當記錄_轉時係使用-光 = ::::):5:資料一無循“為沒 U)f必者D 非結構化（即平坦無軌溝）記錄層 L0(參考圖1)上。力 /θ 方式致動，_/_ 期間，徑向飼服係依一前授 #數後光點已偏移過—磁軌間距。在 步驟604中，各告傲L a ^ 資料係藉由二二記錄载體的一轉數時，已寫入 先束之—術星光點s丨擷取（參考圖5)。在步驟The device 35 is photoelectrically converted so that the push-pull signal can be known for the spots μ, 81 and 1. The photoelectrically converted signal is used to obtain the data and servo signals required by the optical disk drive 1, such as radial, focus, and tilt control signals. It should be noted that the "main spot" herein refers to a central spot or a primary spot, and, a side spot, refers to a satellite spot or a sub-spot or a secondary spot. In addition, the optical system 30 of the optical disk drive can be suitably modified to form a primary spot and side spots & Alternatively, a circulatory signal can be derived based on a high frequency phase detection method. The detector signals from components 35a and 35c are summed and amplified. The amplified output is fed into the cut-off fli. The clipper measures the position of the input signal. The detector signals from components 35ba and 35d are summed and amplified. The amplified output is fed into the clipper. The output signal of the clipper is fed to a phase comparison H which depends on the phase generation-output signal between the pulses of the two inputs of the comparator. The output signal of the comparator is a pass-through signal of the diagonal time difference (dtd) method by a filter chopping low-pass 1 output signal. 2 Recording 1 Recording - A method 6000 of an exemplary unstructured recording of a beaker according to the present invention is shown in FIG. In step 6〇124876.doc 200834557 Rotate 'and when the record_turn time is used - light = ::::): 5: data is not followed "is not U" f must be D unstructured (ie flat untracked trench The recording layer L0 (refer to FIG. 1) is actuated by the force/θ mode, and during the _/_ period, the radial feeding system is offset by the track number after the first number is granted. In step 604 , each arrogant L a ^ data is written by the second record carrier when the number of revolutions has been written into the first bundle - the star point s (refer to Figure 5).
Z人該貧料係使用光束之主光點Μ繼續。在步驟 光束之何生光點Si沿循所掏取之已寫入資料（夫考 圖5)。相同步驟係用來在該等記錄及 二 料。 W貝The Z-needs use the main spot of the beam to continue. In the step light beam, the light spot Si follows the captured data (cf. Fig. 5). The same steps are used for the recording and the second materials. W shell
C 在所揭示的方法中’已提出使用非結構化（即平坦無執 溝)記錄層及開始寫入螺旋"遽度”。寫入該螺旋遽度涉及在 -轉數後擷取該螺旋遽度及用—衛星光點沿循其。基本 士’開始寫入資料係無徑向循轨信號。循轨伺服係用於一 前授方式，以致在-轉數後該主光點係偏移過—磁軌間 距。聚焦信號係可用且在寫入時用於聚焦之伺服迴路係關 。在第一轉後’第一磁執的已寫入資料係藉由尾端衛星 光點擷取，其將產生用來關閉循軌伺服迴路的循軌信號。 圖7顯示一指示所揭示記錄方法如何運作的一圖框序 列。第一圖框顯示一空（空白）記錄載體2(參考圖丨/圖之）。 第二圖框顯示當物鏡34(參考圖3)使光點移動至右邊時在第 一磁軌上寫入如何發生。記錄載體之旋轉方向係用箭頭7A 指示。在已完成第一磁執後，第—磁軌係藉由衛星光點& 124876.doc -12· 200834557 :員取’如第二圖框中顯示。在完成一完整轉數後，係獲得 取後圖框，其顯不該等磁執由於藉由衛星光點^循執而彼 此整齊併排地寫人，如第四圖框中顯示。 應注意的係當寫人第-磁執時，應沒有外部干擾作用在 物鏡34上（參考圖3)，因為在該時間週期期間物鏡係依一開 放迴路方式中控制。 該想法係要在-無任何結構之邮白）光碟（即無軌溝或 無任何預浮雕結構)上開始寫入。在光碟之第一轉數期 間’致動器40(參考圖3)需要加以致動，使得在完成第一轉 數後，主光點Μ(參考_)已前進約—磁軌。此可藉由將 -傾斜電壓施加於致動器4〇(參考圖3)來達到。該傾斜之斜 率係藉由致動器特徵與所需循軌間距一起決定。在記錄期 間，必須使用聚焦致動器42(參考圖3)來保持焦點。 第一轉數後’第一已寫入磁軌係藉由一衛星光點S丨擷取 (參考圖5)，其在以衛星光點循軌時係對準使得寫入光點保 持在-磁軌間距之-距離p處（參考圖5)。此可藉由使用單 -光點推挽、差分相位偵測(DPD)或其他循執信號達到， 且可關於-根據主光點及衛星光點間之徑向距離之某一偏 移。 循軌誤差信號將僅在第一磁軌已寫入後才產生。關於偏 移（聚焦偏移、傾斜偏移、徑向偏移），此等係在光學讀取 單元（OPU)製造期間決定的參數且係置於一記憶體内。此 等偏移係由於製造公差造成。其一例外係近場記錄之情 况，其中對於致動器之聚焦動作的情況，會使用一空氣間 124876.doc -13- 200834557 隙^號。因此，在該情況下（而非聚焦 ) 還鏡底部表® * 光碟之間的距離係受控制。將光點聚隹 一、 …、仗5己錄層卜可轉 改變物鏡之共軛距離達到。一信號係 彳稭由 ^ ^在*己錄層上將 主光點聚焦。可將徑向信號用於具有軌溝或資恭 體。此無法用於—非結構化之記錄載體2(即ml 考圖U圖2)。但仍可從0PU製造期間測量有特0構的二 碟來決定-起點。在操作期間’此可藉由考慮已寫入資料C In the disclosed method, it has been proposed to use an unstructured (ie, flat, unobstructed) recording layer and to start writing a spiral. The writing of the helical twist involves taking the spiral after the number of revolutions.遽度和用—satellite light point follows it. The basics 'starts writing data system without radial tracking signal. The tracking servo system is used for a pre-delivery mode, so that the main light point is biased after the number of revolutions Shift-track spacing. The focus signal is available and is used to focus the servo loop when writing. After the first turn, the 'first magnet's written data is captured by the tail satellite spot. It will generate a tracking signal for turning off the tracking servo loop. Figure 7 shows a sequence of frames indicating how the disclosed recording method works. The first frame shows an empty (blank) record carrier 2 (see Figure 丨 / The second frame shows how the writing on the first track occurs when the objective lens 34 (refer to Figure 3) moves the spot to the right. The direction of rotation of the record carrier is indicated by arrow 7A. After a magnetic hold, the first track is by satellite light spot & 124876.doc -12· 2008 34557: The member takes 'as shown in the second frame. After completing a complete number of revolutions, the system obtains the post-frame, which shows that the magnets are neatly arranged side by side by satellite light points. Person, as shown in the fourth box. It should be noted that when writing the first magnet, there should be no external interference on the objective lens 34 (refer to Figure 3), because the objective lens is in an open loop during this time period. Control in mode. The idea is to start writing on a disc with no structure (ie no track or any pre-relief structure). During the first revolution of the disc, the actuator 40 (reference diagram) 3) It needs to be actuated so that after the first number of revolutions is completed, the main spot 参考 (reference_) has advanced about the track. This can be applied to the actuator 4 by applying a tilt voltage (refer to Figure 3). The slope of the tilt is determined by the actuator characteristics along with the required tracking pitch. During recording, the focus actuator 42 (refer to Figure 3) must be used to maintain the focus. After the first number of revolutions' The first written track is captured by a satellite spot S (refer to Figure 5), which is in satellite light When tracking, the alignment is such that the write spot remains at the -p distance of the track spacing (refer to Figure 5). This can be done by using single-spot push-pull, differential phase detection (DPD) or other The signal is reached, and can be related to - according to the radial distance between the main spot and the satellite spot. The tracking error signal will only be generated after the first track has been written. About the offset (focus Offset, tilt offset, radial offset), which are parameters determined during the manufacture of the optical reading unit (OPU) and placed in a memory. These offsets are due to manufacturing tolerances. The exception is the case of near-field recording, where for the case of the focus action of the actuator, an air between 124876.doc -13 - 200834557 gap is used. Therefore, in this case (rather than focusing), the distance between the bottom table and the * disc is controlled. Convergence of light spots, ..., 仗 5 recorded layers can be changed to change the conjugate distance of the objective lens. A signal system is focused by ^ ^ on the * recorded layer to focus the main spot. Radial signals can be used to have rails or squadrons. This cannot be used for the unstructured record carrier 2 (ie ml map U Figure 2). However, it is still possible to determine the starting point from the measurement of the two discs with a special configuration during the 0PU manufacturing. During operation, this can be considered by considering the data that has been written.
L· 之品質來精細調諧。此係類似於執行用於記錄系統之最佳 功率控制。在本文描述的系統中，可用循轨信號之品質在 已寫入第一磁執後來調整焦點。 、 推挽、差分相位傾測（DPD)及差分時間侦測（MW係业 型用來產生循執信號。推挽依靠徑向方向中之光衍射及可 用於具軌溝光碟及ROM光碟上。在徑向及切線方向中之行 射次序（即（]，]);(]]);〇，])及（卜⑶係用於卿 及DTD。此意即需要_資料龍以產生此等信號。資料型 樣在一未寫入執溝光碟上不存在且因此無法使用DpD及 DTD。在所揭示方法中，循執信號係在第一磁執已寫入後 產生’其意指資料存在且因此可使用Dpd及DTD。 在一具體實施例中，磁執間距係藉由主光點及衛星光點 間之距離及連接此等光點的線及該等磁執間之角度決定。 磁執間距之決定係顯示在圖8中。參考圖8，主光點M及衛 星光點S!與S2間的距離係由磁執間距決定。主光點μ及衛 星光點S!間之距離^係決定為 SiM = tp/d;及tp = d 124876.doc -14- 200834557 為 在相同線上 主光點M及衛星光點S2間之距離旬係決定The quality of L· is fine tuned. This is similar to performing optimal power control for a recording system. In the system described herein, the quality of the tracking signal can be used to adjust the focus after the first magnetic hold has been written. Push-pull, differential phase dump (DPD) and differential time detection (MW system is used to generate the circulatory signal. Push-pull relies on light diffraction in the radial direction and can be used on tracked discs and ROM discs. The order of the shots in the radial and tangential directions (ie (],]); (]]); 〇,]) and (b (3) are used for Qing and DTD. This means that _ data dragon is needed to generate this Signal. The data type does not exist on an unwritten ditch disc and therefore cannot use DpD and DTD. In the disclosed method, the circumvention signal is generated after the first magnetic sing has been written. Thus, Dpd and DTD can be used. In one embodiment, the magnetic spacing is determined by the distance between the primary spot and the satellite spot and the line connecting the spots and the angle between the magnets. The decision of the pitch is shown in Figure 8. Referring to Figure 8, the distance between the main spot M and the satellite spot S! and S2 is determined by the magnetic spacing. The distance between the main spot μ and the satellite spot S! ^ is determined to be SiM = tp / d; and tp = d 124876.doc -14- 200834557 is the distance between the main spot M and the satellite spot S2 on the same line Fixed
Sln01 — tpl / dl ;及 tpi = d! Sinq ; 應注意到，該磁執間距可能不是常數。 在另-具體實施例中，在非結構化的記錄層上寫入資料 ;慮度包括依-具有自記錄載體之中心至記錄載體之外緣之 增加半徑的螺旋形式寫入資料濾度。Sln01 — tpl / dl ; and tpi = d! Sinq ; It should be noted that this magnetic pitch may not be constant. In another embodiment, the data is written on the unstructured recording layer; the degree of inclusion includes a data filter in a spiral form having an increased radius from the center of the record carrier to the outer edge of the record carrier.
般而έ，根據所揭示方法寫入的螺旋相對於光碟中之 孔將會係離心。此可針對已允許之離心距在光碟及光碟機 、成更嚴格要求’以致能自一記錄器取出且置回一光碟 (且仍可項取或可寫人），而亦能讀取在另—記錄器中寫入 的光碟。 雖然本發明已藉由使用四層藍光光碟的具體實施例解 釋，但本發明係可應用於所有類型的記錄載體，例如，寫 :次媒體及寫多次可記錄類型（DVD_RW、dvd+rw、藍 光光碟)。本發明並不限於兩層一側光碟(即雙層光碟），及 兩層雙側光碟(即雙層雙側光碟）。熟習此項技術人士可在 軟體中或硬體及軟體兩者中實施記錄資料之方法的所述具 體實施例。熟習實現本文所聲稱之發明的技術的人士於研 讀圖式、揭示内容及隨附的申請專利範圍之後，可瞭解且 實現本文所揭示具體實施例之其他變化。動詞"包含"的使 用並不排除申請專利範圍或說明中未提及之元件的存在。 在元件或步驟前使用之不定冠詞”一"或"一個"並不排除複 數個此等元件或步驟之存在。該等圖式及描述應僅視為說 124876.doc 15 200834557 明性且不限制本發明。 總而言之…記錄制係揭示包含—光碟基板， 錄載體之至少一側上且右一 $夕加> μ ° W上具有或多個記錄層，其中該一或多 個記錄層係用於記錄資料之非結構化。 【圖式簡單說明】 本文已在參考附圖之以上說明中進_步舉例解說本發明 :此等及其他方面、特點及優點，該等圖式中相同參考數 子指示相同或類似部分，且其中： 圖1概要說明一種四層記錄載體之範例，其具有一無執 溝基板及在該無軌溝基板之頂部上之記錄層； 圖2概要說明一種四層記錄載體之另一範例，其具有一 有執溝基板及在該有軌溝基板之頂部上之記錄層； 圖3概要說明一範例性光碟機；及 圖4係顯示一範例性光偵測器電路之概要方塊圖； 圖5概要說明在一差分推挽方法中之一主光點及一側光 點間之位置關係； 圖6顯示一說明依據本發明記錄之方法的步驟之範例性 流程圖； 圖7概要說明在依據本發明之範例性非結構化記錄載體 上s己錄資料的方法；及 圖8概要說明依據本發明之磁軌間距的決定。 【主要元件符號說明】 1 光碟機 2 記錄载體 124876.doc -16 - 200834557 4 馬達 5 旋轉軸 6 轉台或夾緊轂 7 旋轉軸 30 光學系統 31 光產生器 32a 光束 32b 光束 32c 反射光束 32d 光束 33 分光器 34 物鏡 35 光學偵測器 35a 偵測器片段 35b 偵測器片段 35c 偵測器片段 35d 偵測器片段 35e 偵測器片段 35f 偵測器片段 35g 偵測器片段 35h 偵測器片段 40 致動器系統 41 徑向致動器 42 聚焦致動器 124876.doc -17- 200834557 43 傾斜致動器 90 控制電路 91 讀取信號輸入 91a 輸入 91b 輸入 91c 輸入 91d 輸入 92 第一輸出 93 第二輸出 94 第三輸出 95 第四輸出 cl 覆蓋層 L0 記錄層 LI 記錄層 L2 記錄層 L3 記錄層 M 主光點 Si 側光點 S2 側光點 sb 光碟基板 sp 1 分離層 sp2 分離層 sp3 分離層 124876.doc -18-As a general rule, the spiral written according to the disclosed method will be centrifuged relative to the hole in the disc. This can be used for more precise requirements on the disc and the disc drive, so that it can be taken out of a recorder and returned to a disc (and still can be selected or writable), but can also be read in another - A disc written in the recorder. Although the present invention has been explained by a specific embodiment using a four-layer Blu-ray disc, the present invention is applicable to all types of record carriers, for example, write: secondary media and write multiple recordable types (DVD_RW, dvd+rw, Blu-ray disc). The present invention is not limited to two-layer optical discs (i.e., double-layer optical discs), and two-layer double-sided optical discs (i.e., double-layer double-sided optical discs). The specific embodiments of the method of recording data can be implemented in software or in both hardware and software. Other variations to the specific embodiments disclosed herein can be understood and effected by those skilled in the <RTIgt; The use of the verb "include" does not exclude the existence of a component not mentioned in the scope of the patent application or the description. The indefinite article "a" or "an" or "an" does not exclude the <RTI ID=0.0> </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; And not limited to the invention. In summary, the recording system reveals that the optical disc substrate has at least one side of the record carrier and has one or more recording layers on at least one of the right side, wherein the one or more records The layer is used to record the unstructured data. [Brief Description of the Drawings] The present invention has been described herein with reference to the above description of the drawings: these and other aspects, features and advantages, in the drawings The same reference numerals indicate the same or similar parts, and wherein: FIG. 1 schematically illustrates an example of a four-layer record carrier having a non-grooved substrate and a recording layer on top of the trackless trench substrate; FIG. 2 schematically illustrates a Another example of a four-layer record carrier having a grooved substrate and a recording layer on top of the tracked substrate; FIG. 3 schematically illustrates an exemplary optical disk drive; and FIG. 4 shows an exemplary optical inspection A schematic block diagram of a circuit; FIG. 5 schematically illustrates the positional relationship between one of the main spots and one of the spots in a differential push-pull method; FIG. 6 shows an exemplary flow of the steps of the method of recording in accordance with the present invention. Figure 7 is a schematic diagram showing a method of recording data on an exemplary unstructured record carrier in accordance with the present invention; and Figure 8 is a schematic illustration of the determination of the track pitch in accordance with the present invention. 2 Record carrier 124876.doc -16 - 200834557 4 Motor 5 Rotary shaft 6 Turntable or clamping hub 7 Rotary shaft 30 Optical system 31 Light generator 32a Beam 32b Beam 32c Reflected beam 32d Beam 33 Beam splitter 34 Objective lens 35 Optical detection 35a detector segment 35b detector segment 35c detector segment 35d detector segment 35e detector segment 35f detector segment 35g detector segment 35h detector segment 40 actuator system 41 radial Actuator 42 Focus Actuator 124876.doc -17- 200834557 43 Tilt Actuator 90 Control Circuit 91 Read Signal Input 91a Input 91b Input 91c Input 9 1d input 92 first output 93 second output 94 third output 95 fourth output cl overlay layer L0 recording layer LI recording layer L2 recording layer L3 recording layer M main spot Si side spot S2 side spot sb optical disk substrate sp 1 Separation layer sp2 separation layer sp3 separation layer 124876.doc -18-
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06120548 | 2006-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200834557A true TW200834557A (en) | 2008-08-16 |
Family
ID=38895946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW96134055A TW200834557A (en) | 2006-09-13 | 2007-09-12 | Unstructured multilayer optical discs and recording method |
Country Status (2)
| Country | Link |
|---|---|
| TW (1) | TW200834557A (en) |
| WO (1) | WO2008032269A2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635076A (en) * | 1985-03-14 | 1987-01-06 | Minnesota Mining And Manufacturing Company | Two-sided optical recording medium |
| JP2722723B2 (en) * | 1989-10-23 | 1998-03-09 | ブラザー工業株式会社 | Optical recording medium |
| EP1324326B1 (en) * | 2001-12-18 | 2005-11-30 | Matsushita Electric Industrial Co., Ltd. | Information recording medium and method for producing the same |
| JP3869378B2 (en) * | 2003-03-12 | 2007-01-17 | 株式会社東芝 | Optical recording medium |
| JP4271116B2 (en) * | 2004-09-29 | 2009-06-03 | 株式会社東芝 | Optical recording / reproducing device |
-
2007
- 2007-09-12 WO PCT/IB2007/053666 patent/WO2008032269A2/en active Application Filing
- 2007-09-12 TW TW96134055A patent/TW200834557A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008032269A3 (en) | 2008-06-12 |
| WO2008032269A2 (en) | 2008-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101667431B (en) | Optical pickup device and optical disc apparatus | |
| JP4410177B2 (en) | Information recording / reproducing method and information recording / reproducing apparatus | |
| JP2004039125A (en) | Optical recording/reproducing device and method for controlling focus | |
| JP4903081B2 (en) | Optical disc medium and tracking method | |
| JP2006302326A (en) | Method and device for recording and reproducing information | |
| JP2002092935A (en) | Optical pickup unit, optical disk device and method for detecting track discrimination signal | |
| EP1806742B1 (en) | Optical disc device | |
| JP4329364B2 (en) | Optical head, recording and / or reproducing device | |
| JP4685754B2 (en) | Tracking method | |
| WO2001001405A1 (en) | Optical disk recording and/or reproducing device, and focusing servomechanism | |
| JP4234109B2 (en) | Optical pickup device and information recording device using the same | |
| US7701813B2 (en) | Method for recording to and reproducing from an optical recording medium, optical recording medium, and recording and reproduction apparatus for the same | |
| TW200834557A (en) | Unstructured multilayer optical discs and recording method | |
| JP4023365B2 (en) | Recording and / or reproducing apparatus, optical head, and track error signal detection method | |
| JP2007080423A (en) | Optical pickup and its adjustment method | |
| JP5140131B2 (en) | Optical recording medium, optical recording / reproducing apparatus, and reproducing apparatus | |
| JP2001189025A (en) | Optical pickup device, optical disk unit and method for detecting track discriminating signal | |
| JPH1186310A (en) | Optical disk device | |
| JP4626691B2 (en) | Optical disc apparatus and optical disc discrimination method | |
| JP2009266285A (en) | Optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method, and optical information recording medium | |
| WO2008110972A1 (en) | Optical scanning device | |
| WO2013111382A1 (en) | Optical disk device | |
| JPH09293275A (en) | Optical recording medium | |
| JP2006024257A (en) | Optical recording/reproducing device | |
| JPH1116174A (en) | Optical disk device |