TW200522017A - Method of and apparatus for recording data on write-once disc, method of and apparatus for reproducing data from write-once disc, and write-once disc therefor - Google Patents

Abstract

A method and apparatus recording and/or reproducing data on/from a write-once disc, and a write-once disc therefor, the write-once disc having at least one recording layer including: a plurality of update areas in which predetermined updated information is recorded; and at least one access information area in which access information indicating an update area in which final recorded updated information is recorded. Reducing access time for reading the updated information using a location of predetermined updated information. Also, when a plurality of update areas for writing updated information required to use the write-once disc exist, a recording apparatus or a reproducing apparatus can quickly and easily determine an update area in which final updated information is recorded among the plurality of update areas.

Description

200522017 15761pif.doc IX. Description of the Invention: This application claims the Korean Patent Application No. 20003_96223 filed to South Korea on December 24, 2003. 2. The month of the Intellectual Property Office to the Korean Intellectual Property Office The priority of Korean patent = Errang-6471, which was filed in the application, is disclosed in this specification. 1 合 糸 元 [Technical field to which the invention belongs] The present invention relates to a method for recording and writing data to and regenerating data from the disc, and particularly to a method for recording and storing data on a jingjing-time disc. Fetch information for faster access to Yunwei's write-once disc information, and write-once discs using the methods and devices described above. [Prior art] New information can be repeatedly recorded on a rewritable disc on which information has been recorded. But 'when new information is recorded on a writer-timer disc, since the recorded information can neither be erased nor repeatedly recorded at the location where the information has been recorded, in order to update the recorded information, a new location must be allocated . Often, only the information that is eventually updated makes sense. Therefore, in order to read the information that is finally updated, an update area must be allocated to the data area. The disc drive detects the finally updated information by searching the update area of the record update information. When a large amount of information is recorded in this update area, it takes a lot of time to guess the expected information. On a write-once disc with defect management performed by the drive, when a write-once disc is in use, an area for recording defect management information 200522017 15761pif.doc is generated and there is an instruction to write to the write-once disc Information on the status of film recording. Unlike J-writable discs, which are based on the characteristics of write-once discs, when missing management information needs to be updated, the update information cannot be repeatedly recorded in locations where negative λ is recorded. The updated information must be recorded in vacant position. Therefore, a relatively wide update area is required. Normally, the update area is allocated to the lead-in area or the lead-in area. However, 'sometimes, in order to increase the update count according to the user's designation', the update area may be allocated to the data area. : When using the write-once disc, the information that is finally updated is recorded in the update area of the distribution data area. When the information that is finally updated includes the information of the update area of the === material area and indicates the location of the update area. 〇〇 寺 ρ has found the allotted or allocated area of the lead-in area or the lead-out area. The information that was finally updated or records the information that was finally updated. [Inventive Content] The type of write-once disc has When recorded on a disc: the time-lapse structure can reduce the access time used by the write-time method and the present; also: Γ: ί 更: Γ. And devices can reduce access time when using write-once discs, new methods. … Being modified by the invention The invention again proposes a kind of data reproduction and device which can reduce the use of write-once tablet fashion; 2 this method access time for new information. ° Beijing's proposed by the U.S.-a write-once disc, with at least one record 200522017 15761pif.doc f 'The disc includes: rural update area, which is marked in its fingerprints; Access to Yuxun, the record indicates the most ,,,; updated-the access information of the update area where Beixun is located. == A method for recording data on a write-once disc includes: recording predetermined update information in one of the update areas assigned to the writer-timer shirt; in the news assigned to the writer_ film Access information is recorded in the area, and this access information indicates the update area where the final updated information is recorded. The write / read unit that records data on a write-once disc, and writes information on the write-once disc; the controller 'controls the write / read unit to be assigned to the write-once disc. One of the multiple update areas of the disc records the scheduled update information: two = at least one access information area allocated to write-once discs is recorded in the access information. This access information indicates the final update of the financial records. Update area. • The present invention further proposes a method for reproducing and writing a secondary disc, including: · It is obtained from at least _ access information areas of the i-distributor-sub-disc, and the updated access information is finally updated; The final updated access information acquisition instruction includes the final update of the information in the update area where the access information is located. This final update access information is recorded in a plurality of update areas allocated to the write-once disc. The present invention further proposes a device for reproducing a write-once disc, including a reader, which reads in data recorded on the write-once disc; and controls, which controls the reader from allocating to the write-once disc At least one of the access area has access to the last updated access information, and from the last updated access information 200522017 15761pif.doc to get instructions indicating that there is access to the latest updated access area information. This final update The access data for has been recorded in multiple update areas assigned to the writer's one-time disc. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments in combination with related formulas in detail as follows. [Embodiment] Now, the embodiment of the invention of Yangshencaicai will be shown in the example of Guanli's. Among them, the similar participation scale refers to the phase element. The embodiments are described below to explain the present invention by referring to the figures. 1A and 1B are structures of a write-once disc according to an embodiment of the present invention. Head 1A is the structure of a writer-secondary disc having a single recording layer, and Fig. 1B is the structure of a writer-secondary disc having a double recording layer. The writer-time disc with a single § recorded layer includes: a lead-in area, a data area, and a lead-out area arranged from the inner circle to the outer circle. A write-once disc having a double recording layer has a first recording layer L0 and a second recording layer L1, each of which includes: a lead-in area, a data area, and a lead-out area arranged from the inner circle to the outer circle. Fig. 2 is a detailed structure of a write-once disc having a single recording layer according to an embodiment of the present invention. 2, the lead-in area includes a first disc management area (DMA1), a second disc management area (DMA2), a first temporary disc management area (TDMA1), an access information area (AIA), and recording conditions. Test a-type area. The lead-out area includes the third disc management area (DMA3) and the fourth disc management area (DMA4). In addition, the lead-out area may further include at least one temporary 200522017 15761pif.doc defect management area, recording condition test area, and AIA. That is, there is at least one of AIA, DMA, TDMA, and recording condition test areas in at least one of a lead-in area and a lead-out area. 3A and 3B are detailed structures of a write-once disc having a double recording layer according to an embodiment of the present invention. Fig. 3A shows the structure of the first recording layer L (), and Fig. 3B shows the structure of the second recording layer L1. The structure of the first recording layer L0 shown in Fig. 3A is the same as that of the write-once disc having a single recording layer shown in Fig. 2. The structure of the second recording layer L1 shown in Fig. 3B is similar to that of the first recording layer L0. However, in the structure of the second recording layer u, AIA is not allocated to the internal area of the younger one, and two TDMAs are allocated to the second data area. A write-once disc having a double recording layer includes five TDMA's TDMA1 to TDMA5. The positions and sizes of TDMA1 and TDMA2 are well-known recording and reproducing devices. However, when the disc initialization is performed using a write-once disc having a double recording layer, TDMA3, TDMA4, and TDMA5 are allocated to the data area by a user or a recording device and / or a reproduction device. When the temporary disc management structure (TDMS) is recorded from TDMA1, the temporary disc defect structure (TDDS) is recorded in TDMA1. This TDDS includes the size and position of the TDMA allocated to the data area. 4A and 4B are detailed structures of a write-once disc having a double layer of Lu Jilu according to another embodiment of the present invention. Fig. 4a shows the structure of the first-recorded layer L0, and Fig. 4B shows the structure of the second recording layer L1. The write-once disc having the double recording layer shown in Figs. 仏 and 4B is allocated 200522017 15761pif.doc TDMA1 'TDMA2 and TDMA5. That is, in addition to the known roMA and TDMA2, when performing disc initialization using a write-once disc with a dual recording layer, only TDMA5 is allocated to the second data area by a user or a recording device and / or a reproduction device. . An area such as TDMA allocated to a write-once disc and a method of recording data in the area will now be described. TDMA: Before the write-once disc is initialized, the area where the TDMS for write-once disc management is located is recorded. The finalization of write-once discs prevents the write-once discs from being recorded again. The $ user option can no longer record data on write-once discs, or when additional data cannot be recorded on write-once discs, the write-once disc is terminated. TDMS includes temporary defect list (tdfl), TDDS, and free bitmap (SBM). The TDFL includes information indicating the area where the defect occurs and information indicating the replacement area. TDDS manages TDFL, including location indicators that indicate where DFLs are located, location indicators that indicate where SBMs are located, and information on the location and size of the remaining areas allocated to the data area.

° Where ’information indicates the location and size of the TDMA allocated to the data area. The SBM table does not write data of the state of the bitmap of a one-time disc record by assigning different bit values to the cluster. This cluster includes the clusters of data recorded in the cluster unit, that is, the data recording unit, and the A cluster of recorded data. When a write-once disc is loaded into a recording device and / or a reproduction device, in order to use the write-once disc in the device, the final TDMS, especially TDDS, which will be updated by 11 200522017 15761pif.doc will soon be needed. In general, when a write-once disc is loaded into a recording device or a playback device, the recording device and the playback device determine how to manage the write-once disk 'and how to read information from the lead-in area / lead-out area by Record or reproduce information. If the amount of information recorded in the lead-in area / export area is large, more time is required to prepare for recording or reproduction after loading a write-once disc. Therefore, with TDMS, TDMS generated when data is recorded on a write-once disc or reproduced from it is recorded in TDMA, which separates TDMA from defect management and allocates it to the lead-in area / lead-out area. When the write-once disc is finished, since the recording or reproduction device is allowed to read only meaningful information from the defect management area, only the final meaningful information in Tdfl and TDDS is stored, and it is updated and recorded multiple times in the DMA. Therefore, it is possible to quickly use write-once discs for information access, and TDMS recorded in TDMA, that is, TDFL and TDDS are finally recorded in DMA. FIG. 5 illustrates a method for recording data in a user data area and a remaining area according to an embodiment of the present invention. 5, A indicates a user profile area, and B indicates a remaining area. The methods for recording user data in the user data area include continuous recording mode and random recording mode. In the continuous recording mode, user information is continuously and sequentially recorded and in the random recording mode, it is recorded randomly. Areas ① to ⑦ indicate the unit to be verified after the recording is performed. The recording device writes the user data in area ①, and verifies whether the user data is written normally or a defect occurs in area ①. If a defect is found that results in a part of 12 200522017 15761pif.doc, this part is designated as a defect area, ie defect No.-. The other 2 are located in the remaining area to rewrite the user information that has been written in the No. 1 defect. 2 The part of the user information that is written in the No. 1 defect is called the second 9th generation. ° § The recorded device is in the area ② Write the user information in it, and verify that the user has been written normally or has a defect in area ②. If a ^^ defect of I is found, this part is designated as a defective area, that is, the second missing one: What? Produces a second replacement that corresponds to the second defect. In addition, product, = li 'produces the second defect and the third replacement. In the area ④, there is no “defective” points because of “>”, so there is no defect area. After the user data is written and verified, if it is finished, if the user presses “Eject, button, or point record ^ 2 The user data has been recorded, and the recording device is in Guli = No. 2 Defect, No. 2 Defect, and No. 3 Defect Information: No. TDDS, these defects are in the areas ① to ④, Rizha wrote for his brother in Lan A Entry management — tdfl management ^ [Another ^ 卜 'Π The recording operation is the purpose of the household or the recording worker = ^ Gonggong as early as 70 in this embodiment' The recording operation instruction is :, loading and writing The time of the recording of the secondary disc and the execution of the predetermined information is from the time when the recording of the secondary disc is completed to the removal of the recording unit. a…… when a human-writer disc is loaded again, the second recording operation is started. The recording conditions are in the recording condition measurement, based on the test and M data. That is, in the second recording operation, the = enter user type writes the user data in the area ⑤ to ⑦ Xiang :, \\ 第: == Fang Shuai, Fei Lai, and Wu Wuyi. When the second riding operation ends 200522017 15761pif.doc, the recording device writes information on the fourth defect and the fifth defect in the TDMA t as the second TDFL. In addition, the management structure for managing the first TDFL is written in the TDMA as the second tdds. As shown in FIGS. 2 to 4, when a write-once disc is allocated with a plurality of TDMA and remaining areas, the TDMA and remaining areas are used in a predetermined order. For example, as shown in FIG. 3, when the data writing path applied to a write-once disc with a double-layer recording layer is the opposite magnetic path, that is, the path is afraid, and the data is from the first recording Recorded from the first inner area of layer L0 to the first outer area of first recording layer L0, from the second inner area of second recording layer u to the second outer area of first recording layer L1, at this time, the remaining The area data is recorded from the first remaining area of the first recording layer L0. When the first remaining area is full, the second remaining area, the third remaining area, and the fourth remaining area are used in order. Similarly, TDMS is recorded from TDMA1 of the first recording layer 10. When TDMA1 is full, the updated TDMS is recorded in TDMA2 allocated to the second internal area from the second recording layer li. When TDMA2 is full, the newly updated TDMS is recorded in TDMA3 allocated to the first data area from the first recording layer L0. In this embodiment, for write-once discs, TDMA1 and TDMA2 allocated to the internal area of the recording layer are better. However, the TDMA allocated to the data area may or may not be allocated by the user option. Therefore, when the internal area allocated to the recording layer is full, TDMA allocated to the data area is used. When the finally updated TDMS is written in the TDMA allocated to the data area, the write-once disc is unloaded and reloaded into the recording device. 200522017 15761pif.doc In order to use write-once discs, the recording device must obtain the final updated TDMS. However, the TDMS is recorded in the TDMA allocated to the data area, and the disc drive cannot recognize the fact that the TDMS is recorded in the tdMA allocated to the data area until the disc drive accesses the TDDS included in the TDMS. To solve this problem, AIA is individually assigned to a predetermined position of the write-once disc of the present invention. Record access information (AI) in AIA. AI indicates where the updated information such as TDMS has been recorded. In addition, the update information indicates information that must be recognized and / or reproduced in order to use the write-once disc in the initial period. The initial period is when a write-once disc is loaded into a recording and / or reproducing device. In addition, the area where the update information is recorded is called an update area. In this embodiment, the representative update message is TDMS, and the representative update area is TDMA. As shown in Figures 2 to 4

...... Assigning ΑΙΑ to the lead-in area or internal area is not necessary. In addition, it is better to pass

The number of Ai and the number of Ai updates at L 4 in the morning are minimized to limit the size of AiA, but it is not necessary, because if there is more than AiA, you need to call the scale to get Ai large or allocate data G is = the first-implementation of the present invention The access information (AI) of the example is shown in Figure 2. The TDMA of the update area of the household sentence as the update information and the AI in the disc of Figure 3 are shown in Figure 3. With reference to Fig. 6, the AI header includes the data as AI, and the AI update count, the AI identification symbol, which indicates the following, which indicates the AI update count. 15 200522017 15761pif.doc The AI includes the total number of TDMA allocated to the write-once disc, indicating the information of the TDMA where the final TDDS is recorded, and the information of the TDMA location. Each TDMA position information may include information indicating the start position and end position of each TDMA, or information indicating the start position and size of each TDMA. Since the TDDS includes a pointer indicating the position of the corresponding TDFL, the AI includes information indicating where the final TDDS is recorded. § When a write-once disc according to the present invention is loaded into a disc drive, the disc drive can identify the TDMA where the final TDDS is recorded by accessing the AIA in a known location and obtaining the final updated AI, The disc drive gets the final TDDS from TDMA. In order to reduce the access time required to get the final AI recorded in the AIA, it is better that the AI is continuously recorded in the AIA with continuous recording branches, and the number of Ai updates is minimized, but this is not necessary. According to the embodiment of the present invention ', in order to minimize the number of AI updates, the AI is updated whenever the TDMA change where the final TDDS is recorded is recorded. In addition, when the information of the number of TDMA that is not allocated to the write-once disc and the position of π) ΜΑ are included in the AI, it is also updated when a new tdma is assigned or the information of the TDMA position is changed. AI. In addition, it is better to repeatedly record the same AI so as to be prepared when an error occurs in the recorded AI, but this is not necessary. Since the AI to be updated is continuously recorded after the previous ai, even if the detailed address where the final TDDS is located is not recorded, the information is not included in the AI. The RF signal obtained from the recorded data area and the non-recorded data are 200522017 15761pif There is a difference between the RF signals obtained in the .doc data area. The recording device and / or the reproduction device can identify the boundary between the recorded data area and the non-recorded data area, and use the track jump method to quickly find the final TDDS location. s position.

Fig. 7 is a data structure of access information according to a second embodiment of the present invention. The AI shown in FIG. 6 includes information indicating the position of all TDMAs and information indicating the TDMA where the final TDDS is recorded. However, the AI shown in FIG. 7 includes information indicating the TDMA location where the final TDDS is recorded. The information indicating the TDMA location where the final TDDS user is recorded can be represented by the address of the first physical sector of the first cluster of TDMA and the address of the first physical sector of the last cluster of TDMA. However, any person skilled in the art can make various changes to this representation method without departing from the spirit and scope of the present invention. This method is to indicate the information of the TDMA location where the final TDDS is recorded.

Fig. 8 is a data structure of access information (AI) according to a third embodiment of the present invention. The AI data structure shown in Figure 8 is the same as the data structure of TDDS. That is, to use TDDS as AI, there is no need to define a separate AI data structure. In order to use TDDS as AI, an information column indicating the TDMA location where the final TDDS is recorded must be added to the TDDS. Fig. 9 is a data structure of access information (AI) according to a fourth embodiment of the present invention. The AI data structure shown in FIG. 9 is the same as that of the TDDS described in the third embodiment. However, unlike the third embodiment, a flag indicating the position of the TDMA where the final TDDS is recorded is further included in the TDDS. In this embodiment, the flag is composed of 8 bits. The 5 bits from b0 to 17 200522017 15761pif.doc b4 indicate the TDMA where the final TDDS is recorded. The 3 bits from b5 to b7 are reserved bits. yuan. For example, when b0 to b4 are "00001b", it can be defined that the final TDDS is recorded in TDMA1, when b0 to M is "00001b", when it is recorded in TDMA2, when b0 to b4 When it is "00100b", it is recorded in TDMA3, when b0 to b4 is "01000b," it is recorded in TDMA4, and when b0 to b4 is "10000b", it is recorded in TDMA5. According to this embodiment, a plurality of TDMAs allocated to a write-once disc are continuously used based on the data recording direction. Therefore, considering multiple TDMAs physically as one continuous tdmA, one continuous TDMA can be divided into multiple virtual TDMAs. FIG. 10 is a data structure obtained by dividing a complete TDMA into a plurality of virtual TDMAs. For example, in a write-once disc with a dual recording layer, when using TDMA in the order of TDMA1, TDMA2, TDMA3, TDMA4, TDMA5, if each of TDMA1 and TDMA2 includes 2048 clusters' TDMA3 and TDMA4 _ Each includes 4096 clusters, TDMA5 includes 8192 clusters, and the entire TDMA includes 20480 clusters. If the entire tDma is divided into 512 cluster units, 1024 cluster units, and 2048 cluster units, the entire TDMA can be divided into 40, 20, or 10 virtual TDMA. If the size of TDMA3 in TDMA1 to TDMA5 allocated to a write-once disc is very large, if the final TDDS is recorded in TDMA3 ', the recording / reproducing device recognizes from the aj that the final ^ is still recorded in TDMA3, The final 18 200522017 15761pif.doc TDDS was obtained by searching for TDMA3. However, when TDMA3 is very large, it takes a long time to find TDMA3 in order to get the final TDDS. Therefore, in order to solve this problem, the above-mentioned concept of virtual TDMA is utilized. The size of each virtual TDMA can be the same as that shown in FIG. However, the size of each virtual TDMA is not limited to this embodiment. The recording / reproducing device divides the entire TDMA into a plurality of virtual TDMAs, and updates the AI when recording the changes of the virtual TDMA where the final TDDS is located. Each of the data structures according to the third to fourth embodiments can be used as the AI data structure of this embodiment. However, the AI in this embodiment includes information indicating the virtual TDMA where the final TDDS is recorded, or information indicating the location of the virtual TDMA where the final TDDS is recorded. FIG. 11 is a block diagram of a recording apparatus according to an embodiment of the present invention. Referring to FIG. 11, the recording apparatus includes a write / read unit 丨, a controller 2 and a dk body 3. The write / read unit 1 writes data on the write-once disc 100, reads the recorded data, and verifies whether the recorded data is defective. The AIA according to the present invention is allocated to a write-once disc 100. In order to manage the defects, the controller 2 uses the "check-after-write" method. This% method is to detect the parts that have defects by writing people in the preview unit and check the recorded data. The controller 2 checks the Write and verify user data where defects occur in each record operation unit, and generate a defect list indicating where the defect area exists as a check result, store the generated defect list in memory 3, and collect multiple defects List, multiple defect lists are stored in the update area assigned to the write-on-human disc in the morning, that is, the T-shaped breast A is stored as TDFL 'Progressively written to TDDS for management records in TDMA 19 200522017 15761pif. Doc muscles. 纟 During a recording operation, check at least after writing; usually the agency. After performing the write check, _ = exists in memory 3, and when it ’s done, it ’s 7 when it ’s read, and when it ’s 3 TDFL. , And provide it with a command to write / data S 1 to Fenzaki "-time early = TDMA morning write TDFL. When the data can no longer be recorded in the write-secondary disc 1 () (), or the user ^ wishes to write the person's information in the data area (when the writer-secondary disc 2 is not completed), the controller 2 will TDFL and Ding Qing recorded in TDMA write to the dma share allocated to write-once disc 100. ^ According to the present invention, the controller 2 controls the write / read unit to have a data structure = data. That is, 'controller 2 controls the write increment unit to write pre-information in one of the multiple update areas allocated to the write-type disc survey; Λ includes the tdms of the approximate or · s, and when the update is needed, The AI written in the rule for the write-once disc 100. Shan Er's detailed description of the method of §self-recording AI proposed by the present invention in the above-mentioned structure of recording farms'. A flowchart of a recording method according to an embodiment of the present invention will be shown. = When the sub-disc carries people to the recording device, the controller 2 only writes 6 and buys early 1 and writes it for n gigabytes. During the recording operation, write at least once ^, ', and ° to determine whether to generate updated information. In this embodiment 200522017 15761pif.doc, the information to be updated indicates a TDMS. When TDMs are generated, the TDMS is temporarily stored in the memory 3. When the recording operation is completed, the controller 2 reads the TDFL stored in the memory 3, and supplies the TDFL to the write / read order f, the write / read unit! In operation 75, the TDFL is written in one of a plurality of update areas allocated to the write-once type, slice 100. A TDMA is indicated in the Ben Fen = morning update area. , 2 = 77 in the operation in the other to determine the existence - of the recording operation, if another recording operation exists, operations 71 to 77 is repeated. ... if there is no other wait operation, the controller 2 updates the AI in operation 79. In this embodiment, when the final TDMS is recorded, the TDMA where the host is located changes, when a new μ AT ′ is allocated or when the information indicating the existing TDMA location is changed, the AI is updated. The reading unit 1 at which it is located will instruct to record the final update information = at least one of the multiple update areas in the update area ΑΙwriter ΑΙΑ 9 allocated to the writer-subordinate disc in operation 81. A better :: ί $ record in ΑΙ produces an error, it is not necessary to record the same A1 repeatedly. Printed anchor "If the ai indicating the position where the final tdms is recorded is the aia of the Γ〇〇i duo disc 100, when the write-once disc is worn, a recording device or a reproducing device, a recording device or a reproducing device can be used. Faster and easier access to the final TDDS. The device of FIG. T re-entry-time disc 100 (not released) has a similar structure to the recording device. This disc 100 includes the AIA according to 21 200522017 15761pif.doc However, since this is a reproduction device, including a reader but not a write / read unit, it includes a write-once disc 100 of the AIA where the AI is recorded, and decides whether the data is to be recorded or not. Whether the one-shot disc 100 is finished. If the write-once disc ι〇〇, there are ,, ... ,,,, α, the playback device accesses ΑΙΑ, and obtains the final ΑΙ. The recording device or playback device identifies the TDi ^ A where the final TDDS is recorded from the final A1. From the description of the write-once disc 100 and its recording device% including AIA, those skilled in the art can easily understand that based on this Operation of the invented regeneration device. The write-once disc 100 is an empty disc that has not been initialized, and the data is not recorded in the AIA at all. In order to use the writer-secondary disc 100, a recording device performs initialization on it. When the write-once disc 100 is initialized, according to the above-mentioned various embodiments, the first AI having a data structure is recorded in the first recording cluster of the AIA. As described above, according to the embodiment of the present invention, when using a writer-time disc that updates and records job information at a new location, the access time for updating information can be reduced. In addition, when there is an update area for writing the required update information in order to use the write-once disc, the recording device or the reproduction device can quickly and easily determine from which update information to record the final update information. Update area. Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The scope of protection of the invention 22 200522017 15761pif.doc [Brief Description of the Drawings] Figures 1A and 1B show the structure of a write-once disc according to an embodiment of the present invention. Fig. 2 is a detailed structure of a write-once disc having a single recording layer according to an embodiment of the present invention. 3A and 3B are detailed structures of a write-once disc having a dual recording layer according to an embodiment of the present invention. 4A and 4B are detailed structures of a write-once disc having a dual recording layer according to another embodiment of the present invention. FIG. 5 illustrates a method for recording data in a user data area and a remaining area according to an embodiment of the present invention. Fig. 6 is a data structure of access information according to the first embodiment of the present invention. 7 is a data structure of access information according to a second embodiment of the present invention. Fig. 8 is a data structure of access information according to a third embodiment of the present invention. Fig. 9 is a data structure of access information according to a fourth embodiment of the present invention. FIG. 10 is a data structure obtained by dividing a complete TDMA (Temporary Disc Management Area) into a plurality of virtual TDMA. FIG. 11 is a block diagram of a recording apparatus according to an embodiment of the present invention. 23 200522017 15761pif.doc FIG. 12 shows a flowchart of a recording method according to an embodiment of the present invention. [Description of main component symbols] L0: first recording layer L1: second recording layer 1: write / read unit 2: controller

3: Memory 71: Write data on write-once discs

I 73: Has the information to be updated been generated? 75: Write update information to one of multiple update areas 77: Is there any recording operation? 79: Do I need to update the AI?

81: Update AI 100: Write-once disc 24

Claims (1)

200522017 15761pif.doc 10. Scope of patent application 1. A write-once disc with at least one recording layer includes: a plurality of update areas in which a predetermined update information is recorded; and at least one access information area ( AIA), in which an access information (AI) is recorded, the AI indicates an update area, in which the finally updated information is recorded. 2. The write-once disc with at least one recording layer as described in item 1 of the scope of the patent application, wherein the AI includes at least two of the update areas, or at least one position of the update areas.一 信息。 One information. 3. The write-once disc having at least one recording layer as described in item 2 of the scope of patent application, wherein the information indicating the position of at least one of the update areas includes a start position and an end of each update area position. 4. The write-once disc with at least one recording layer as described in item 2 of the scope of the patent application, wherein the information indicating the location of at least one of the update areas includes the start position of each update area And size. 5. The write-once disc having at least one record drawer as described in item 2 of the scope of patent application, wherein the information indicating the position of at least one of the update areas includes the end position and size of each update area . 6. The write-once disc with at least one record as described in item 1 of the scope of the patent application, wherein the AI is only updated when the update area is changed: the final update information is recorded in the update area. T7. As described in item 2 of the scope of the patent application, there is at least one write-time disc, which is updated when a new update area is added. It is described that there is at least one write-once disc, and when the information indicating at least L of the update areas ^ 25 200522017 15761pif.doc location is updated, the eighth is updated. The write-man-made disc having at least one recording layer as described in the first item of the patent scope, wherein the AI is repeatedly recorded in the AIA. 10. A write-once disc having at least one recording layer as described in item i of the scope of patent application, wherein the AI is a flag indicating an update area where the information finally updated is recorded. u • A write-once disc with at least one recording layer as described in item 1 of the declared patent scope, wherein the update areas are physical areas. For example, please have at least one record as described in item i of the patent scope: Physical 'where the update areas are logically divided into multiple i3. As described in item 1 of the patent scope, have at least one record = two : Film, where the predetermined update information is-temporary disc), and the update area is-temporary disc management area = =-has at least one record as described in item 5 of the scope of patent 5: writing of recording layer The f two-in-time disc in J is a method with a single guide-or export == distribution information-export area, each recording layer == there is a method of writing material on a human-type disc, including: 26 200522017 15761pif.doc records predetermined update information in one of a plurality of update areas allocated to the write-once disc; and at least one access information area (AIA) allocated to the write-once disc ) Records an access information (AI) of an update area where the latest updated information is recorded. 17. The method for recording data on a write-once disc as described in item 16 of the scope of patent application, wherein the AI includes at least one of the update areas or indicates the location of at least one of the update areas一 信息。 One information. 18. The method of recording data on a write-once disc as described in item 17 of the scope of the patent application, wherein the information indicating the position of at least one of the update areas includes the start position and End position. 19. The method for recording data on a write-once disc as described in item 17 of the scope of patent application, wherein the information indicating the position of at least one of the update areas includes the start position and size of each update area . 20. The method for recording data on a write-once disc as described in item 17 of the scope of patent application, wherein the information indicating the position of at least one of the plurality of update areas includes an end position and a size of each update area. 21. The method of recording data on a write-once disc as described in item 16 of the scope of the patent application, wherein the record of the AI includes: 'Only when one of the update areas changes, the updated Al A changed update area is indicated, and the last update is recorded in these update areas. 22. The method for recording data on a write-once disc as described in item 17 of the scope of patent application, wherein the record of the Ai includes: ^ 27 200522017 15761pif.doc when a new update area is added to the write When the disc is inserted once, the AI is recorded, where the AI includes at least one of the changed update areas or the information indicating the location of the added update area. 23. The method of recording data on a write-once disc as described in item 17 of the scope of the patent application, wherein the record of the AI includes when the information indicating the position of at least one of the update areas changes, Record the AI, where the AI includes the information indicating the location of the change. 24. The method for recording data on a write-once disc as described in item 16 of the scope of the patent application, wherein the record of the AI includes: I The AI is repeatedly recorded in the AIA. 25. The method for recording data on a write-once disc as described in item 16 of the scope of patent application, wherein the AI is a flag indicating the update area where the information of the last update is recorded. 26. The method for recording data on a write-once disc as described in item 16 of the scope of patent application, wherein the update areas are physical areas. 27. The method for recording data on a write-once disc as described in item 16 of the scope of the patent application, wherein the update areas are obtained by logically dividing a plurality of physical areas. 28. The method for recording data on a write-once disc as described in item 16 of the scope of patent application, wherein the predetermined update information is a temporary disc defect structure (TDDS), and the update in which the final updated information is recorded is recorded. The area is a temporary disc management area (TDMA). 29. The method for recording data on a write-once disc as described in item 16 of the scope of patent application, wherein the write-once disc has a single record 28 200522017 15761pif.doc layer, including a lead-in area, a data area, and Lead-out area, assign at least one AIA to the lead-in area or lead-out area. 30. The method for recording data on a write-once disc as described in item 16 of the scope of patent application, wherein the write-once disc has a double recording layer, and each recording layer includes an internal area, a data area, and an external area. Zone, assign at least one AIA to the inner zone or the outer zone. 31 · —A device for recording data on a write-once disc, including: a write / read unit that writes information to or reads information from the write-once disc; and a controller, which controls The write / read unit records a predetermined update information in one of a plurality of update areas allocated to the write-once disc, and at least one access information area (AIA) allocated to the write-once disc. The access information (AI) is recorded here, and this access information indicates the update area where the latest updated information is recorded. 32. The device for recording data on a write-once disc as described in item 31 of the scope of the patent application, wherein the AI includes the update areas or information indicating the location of the update areas. 33. As described in item 32 of the scope of patent application, write-once discs, data is touched, and the information indicating the positions of the update areas includes the start position and end position of each update area. 34. The device for recording data on write-once as described in item 32 of the scope of the patent application, wherein "indicating the positions of the update areas" includes the starting position and size of each update area. Application for a device for recording the data on the 32nd form of Wei Wei on the sub-disc 29 200522017 15761pif.doc, which indicates that the more audible bits include the end position and size of each update area. 36. Such as The device for recording data on writing according to item 31 of the scope of the patent application, wherein the controller controls the write / read unit to change the update area only when the update area that records the last update changes. The updated AI .... Enter 4: 37. The device for recording data on the writer as described in item 32 of the scope of the patent application, wherein when the new update area is added to the disc: the disc, the control continues to control The writer / writer of the outline / reading unit should: enter: times ^ includes Xu Qianyu's update area, or indicates the location of the update area ^ 38. Device for recording data on the writer as described in item 32 of the scope of patent application ， 其 巾 # indicates multiple update areas When the information of the position of the second handle is changed, the controller controls the written AI, including the ordinary input indicating the changed position. 39. Record the data on the writer-time as described in item 31 of the scope of patent application. Look at 'Where the control and control are written 2 pieces of AI in the AIA. The stomach is hard and hard 40 :, record the information in the writer — described in the 31st of the scope of patent application', where the information AI is a flag indicating the update area where the last update of the recording is recorded. Jinbei 41: As described in the scope of patent application 帛 31, the device that records data on the first, the update areas are physical Area. ', 42. As described in item 31 of the scope of patent application, write-once disc 30 200522017 15761pif.doc = ¾: where the update areas are logically divided by multiple μ ^ 2 ^! ° patent application The write-once disc trap structure described in item 31 of the scope: two splits) The scheduled update information is temporary disc shortage. The update area is the temporary disc management area (TDMA). The writer's handle in the recording layer of a one-time disc as described in item 31; One-time discs have a single entry to the lead-in or lead-out area and at least the points and the lead-out area are described in the above-mentioned = °! ^ Special benefit = 31 described in "Writing-Recording Layer I Recording Layer" The write-once disc has a double record. A one-person disc, each recording layer includes an internal area, data Em, and at least one aia is allocated to the internal area and the Bubu area. Beta " Λ, a method for reproducing a write-once disc, including: ατΓϋ writes at least one access information area for a write-once disc " Youtian pays to an updated access information (AI ); And °° in the ==== instruction record—finally updated the newer areas of the dwelling disc :; is recorded in the allocation assigned to the write once 47. If the scope of the patent application is private a: ί .; Ⅰ " ΑΙ -------- Reproduction writer of the film description _time type disc dagger ^ does not record the information of the location of the update area of the final updated AI at 200522017 15761pif.doc. The location of the update area where the write-once disc is located. Write-once disc 49. The method for regenerating a film as described in the first item of the patent application scope, wherein the information indicating the location of the AI that is finally updated is recorded, including the start position and end of the update area. The method for reproducing a film according to item 46, wherein the update areas are physical areas. The write-once disc has multiple physical areas, and 51. The method for reproducing a disc as described in the 46th scope of the patent application, the update areas are logically divided. The method of rewriting a one-time disc, as summarized in Article 46, where the scheduled update information is the temporary disc missing wheel 1 is the temporary disc 53. A kind of re-writing one-time disc 褒Settings, including: and a reader's data recorded on the writer-slave disc; I, controls the reader from allocating to the write-once disc (where the final AI is located) —Ϋι 4 recorded the news that the final update allocation was recorded in the location of the update area. The AI where m is located 32 200522017 15761pif.doc 55. Reproduction writer as described in item 54 of the patent application difficulty-times Type disc = device 'where the recording of the location information of the update area where the final update force AI is located includes the silk position and the end position of the update area. 56. Rewrite once as described in claim 54 of the scope of patent application Disc device 'wherein the update areas are physical areas. 57. The write-once disc as described in item 54 of the scope of patent application Slice device, wherein the update areas are obtained by logically dividing a plurality of physical areas. 58. The device for rewriting a write-once disc as described in item 54 of the scope of patent application, wherein the predetermined update information is a temporary disc defect structure (TDDS), and the update area where the final updated AI is recorded is a temporary disc Slice management area (TDMA). '59. A write-once disc having at least one recording layer as described in item 13 of the scope of the patent application, wherein the AI includes information indicating all tdMA locations and information indicating the TDMA where the final TDDS is recorded. 60. The write-once disc having at least one recording layer as described in item 59 of the scope of patent application, wherein the information indicating the TDMA location where the final TDDS is recorded is the address of the first physical sector of the first cluster of TDMA And the address of the first physical sector of the last cluster of TDMA. 61. The write-once disc with at least one recording layer as described in item 13 of the scope of the patent application, wherein the TDDS is used as the AI without defining a separate AI data structure. 62. A write-once disc having at least one recording layer as described in item 1 of the scope of the patent application, wherein the access time of the disc is reduced by using update information of a predetermined 33 200522017 15761pif.doc recorded in a new location . 63. The device for recording data on a write-once disc as described in item 43 of the scope of patent application, wherein the TDMA is divided into a plurality of virtual TDMAs, and the AI is updated when the virtual TDMA with the final TDDS changes. 34