TWI390511B - Method and apparatus for correcting errors in data rom optical disc - Google Patents
Method and apparatus for correcting errors in data rom optical disc Download PDFInfo
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Description
本發明係關於光碟播放技術領域,尤其係關於一種光碟資料錯誤校正方法及裝置。The present invention relates to the field of optical disc playback technology, and in particular to a method and apparatus for correcting optical disc data errors.
光碟不如磁碟那樣處在保護套之保護中,其難免受到各種各樣之損壞,而在碟面上形成諸如刮痕、汙跡、變形等影響光碟資料讀取之印記。此等印記輕則使光碟播放裝置讀取之光碟資料錯誤,重則可能使光碟資料無法讀取。因此,在光儲存技術領域中,對光碟遭到損壞後所讀取之光碟資料進行錯誤校正係一項十分重要之研究內容。The optical disc is not in the protection of the protective cover like the magnetic disc, and it is inevitably subjected to various kinds of damage, and the imprint such as scratches, stains, deformation and the like which affect the reading of the optical disc data is formed on the disc surface. These marks are used to make the disc information read by the disc playback device incorrect, and the disc data may be unreadable. Therefore, in the field of optical storage technology, the error correction of the optical disc data read after the optical disc is damaged is an important research content.
在先前技術中,對光碟資料錯誤進行修正之措施一般係藉由錯誤校正算法來完成的。例如在光碟播放裝置前端對ECC(Error Correction Code)資料塊之線上錯誤校正等。若自光碟上讀取之資料中有若干字節的資料被破壞,則可根據與其相鄰之未被破壞之資料來推算及恢復,或直接以模糊資料(如馬賽克資料)來取代被破壞之資料,以使光碟播放能夠繼續進行而不致中斷。In the prior art, the correction of the disc data error is generally accomplished by an error correction algorithm. For example, an error correction on the line of an ECC (Error Correction Code) data block is performed at the front end of the optical disc playback apparatus. If several bytes of data in the data read from the disc are destroyed, it can be estimated and restored based on the undestroyed data adjacent to it, or directly replaced with corrupted data (such as mosaic data). Information so that the disc playback can continue without interruption.
通常,一種錯誤校正算法適合於一類特定資料錯誤類型,而一光碟播放裝置不可能安裝所有的錯誤校正算法,面對千差萬別之光碟資料出錯的類型,光碟播放裝置中之區域錯誤校正資源未免疲於應付。為解決錯誤校正算法之不足,現有之網路光碟播放裝置可藉由鏈接網路來查找適合之錯誤校正算法以解決相應之光碟資料錯誤。但此種網路錯誤校正技術仍然無法避免錯誤校正算法之侷限性,因為除適合特定類型之資料錯誤外,錯誤校正算法一般只能適用於被破壞之資料量比較少的情況,對於有大段的連續資料被破壞之情況,錯誤校正算法只能望洋興嘆。另外,根據錯誤校正算法推算及恢復之資料一般亦難以將被破壞之資料完全恢復如初,因此亦無法使光碟之播放效果達成應有之程度。Usually, an error correction algorithm is suitable for a specific type of data error type, and it is impossible for a CD player to install all the error correction algorithms. In the face of a variety of types of optical disk data errors, the area error correction resources in the optical disk playback device are not exhausted. Handle. In order to solve the problem of the error correction algorithm, the existing network CD player can find a suitable error correction algorithm by using a link network to solve the corresponding disc data error. However, such network error correction technology still cannot avoid the limitation of the error correction algorithm, because in addition to being suitable for a specific type of data error, the error correction algorithm can generally only be applied to the case where the amount of data destroyed is relatively small, for a large segment. In the case where the continuous data is destroyed, the error correction algorithm can only be sighed. In addition, the data estimated and restored according to the error correction algorithm is generally difficult to completely restore the damaged data to the original level, and therefore it is impossible to achieve the desired effect of the playback of the optical disc.
而對於以模糊資料掩蓋被破壞之資料的措施,在被破壞之資料較少時,光碟播放畫面之些微跳躍或不連續尚不致影響整體播放效果,但若被破壞之資料比較多,則大段大段之資料被馬賽克資料取代,光碟播放效果將會十分惡劣。For the measures to cover up the damaged data with obscured data, when there is less information to be destroyed, the slight jump or discontinuity of the disc playback screen does not affect the overall playback effect, but if there is more information to be destroyed, the large segment The large section of the data is replaced by mosaic data, and the disc playback effect will be very bad.
由上可知,無論係用錯誤校正算法推算被破壞之資料,亦係用模糊資料掩蓋被破壞之資料,均難以保證使光碟資料恢復至盡善盡美之地步,相應的光碟播放效果就不可避免受影響,尤其係在光碟資料被破壞比較嚴重之情況下,光碟可能不能被播放。It can be seen from the above that whether the corrupted data is used to estimate the corrupted data, and the corrupted data is used to cover up the corrupted data, it is difficult to ensure that the optical disc data is restored to the perfection level, and the corresponding disc playback effect is inevitably affected. Especially in the case that the disc data is damaged, the disc may not be played.
因此需要提供一種光碟資料錯誤校正方法及裝置,以能夠對各種類型之資料錯誤進行修復,並使播放效果能夠達成資料未被破壞前所能達成之播放效果。Therefore, it is necessary to provide a method and device for correcting the error of the optical disc data, so as to be able to repair various types of data errors, and enable the playback effect to achieve the playback effect that can be achieved before the data is destroyed.
本發明要解決之問題係提供一種光碟資料錯誤校正方法及裝置,以克服先前技術中之不足。The problem to be solved by the present invention is to provide a method and apparatus for correcting optical disc data errors to overcome the deficiencies in the prior art.
根據本發明之一實施例,提供一種光碟資料錯誤校正之方法,包括步驟:獲取自一光碟上所讀取之錯誤資料之描述資訊;根據該描述資訊向一網路伺服器發出錯誤校正請求資訊,該網路伺服器中儲存有與該光碟上之資料相對應的備份資料,該錯誤校正請求資訊包括請求下載與該錯誤資料相對應的備份資料;及用下載的該備份資料對應置換該錯誤資料,以用於播放該光碟。According to an embodiment of the present invention, a method for error correction of optical disc data is provided, comprising the steps of: obtaining description information of an error data read from a disc; and sending an error correction request information to a network server according to the description information. The network server stores backup data corresponding to the data on the optical disc, the error correction request information includes requesting to download backup data corresponding to the error data; and replacing the error by using the downloaded backup data correspondingly Information for playing the disc.
根據本發明之一實施例,提供一種光碟資料錯誤校正之裝置,包括:一獲取裝置,用於獲取自一光碟上所讀取之錯誤資料的描述資訊;一請求裝置,用於根據該描述資訊向一網路伺服器發出錯誤校正請求資訊,該網路伺服器中儲存有與該光碟上之資料相對應的備份資料,該錯誤校正請求資訊包括請求下載與該錯誤資料相對應的備份資料;及一置換裝置,用以將下載之該備份資料相應的置換該錯誤資料,以用於播放該光碟。According to an embodiment of the present invention, there is provided an apparatus for error correction of optical disc data, comprising: an obtaining means for acquiring description information of an error data read from a disc; and a requesting means for using the description information according to the description Sending error correction request information to a network server, wherein the network server stores backup data corresponding to the data on the optical disk, and the error correction request information includes requesting to download backup data corresponding to the error data; And a replacement device, configured to replace the downloaded backup data with the error data for playing the optical disc.
藉由下文中參照隨附圖式對本發明所作之描述及申請專利範圍,本發明之其他目的及成就將顯而易見,並可對本發明有全面之理解。Other objects and attainments of the present invention will be apparent from the description and appended claims appended claims
隨網路技術之發展,網路伺服器已經完全可為發行之光碟建立資料備份,而在資料傳輸頻寬及時間允許之情況下亦能夠向用戶端傳輸較大量的資料。基於此,本發明之構思如下:首先,獲取被破壞之光碟資料的描述資訊,例如錯誤資料之儲存位址或播放時間(對於錯誤之ECC block而言係位址資訊)等。然後,向網路伺服器請求下載與錯誤資料相對應的備份資料,以替代自光碟上讀取之錯誤資料。下載的備份資料連同自光碟上讀取之正確資料,將一並被向後傳送進行相應的資料處理以播放光碟。藉由此技術方案,光碟資料之完整及準確性可保證,光碟播放可達成光碟資料沒有被破壞之效果。With the development of network technology, the network server can completely establish data backup for the released optical disc, and can transmit a larger amount of data to the user terminal when the data transmission bandwidth and time permit. Based on this, the concept of the present invention is as follows: First, the description information of the damaged optical disc data, such as the storage address or the playing time of the erroneous data (the address information for the wrong ECC block) is obtained. Then, the network server is requested to download the backup data corresponding to the error data to replace the error data read from the optical disc. The downloaded backup data, together with the correct data read from the disc, will be sent back to the corresponding data processing to play the disc. With this technical solution, the integrity and accuracy of the optical disc data can be guaranteed, and the disc playback can achieve the effect that the optical disc data is not destroyed.
圖1係根據本發明之一實施例之光碟播放系統示意圖。光碟110具有一獨有之識別資訊(ID)。藉由此識別資訊,光碟服務提供商可判斷該光碟110是否由其發行或應由其提供服務。光碟110上亦包括為該光碟110之使用提供服務的光碟服務提供商之網路鏈接資訊。藉由相應的網路鏈接資訊,光碟播放裝置120(如藍光光碟播放器等網路光碟播放裝置)可與相應的伺服器相鏈接,以進行相應的資訊及資料之交流。1 is a schematic diagram of a disc playback system in accordance with an embodiment of the present invention. The optical disc 110 has a unique identification information (ID). By identifying the information thereby, the optical disc service provider can determine whether the optical disc 110 is issued by or should be served by it. The optical disc 110 also includes web link information for the optical disc service provider that provides service for the use of the optical disc 110. With the corresponding network link information, the CD player 120 (such as a Blu-ray disc player and other network CD player) can be linked with the corresponding server to communicate the corresponding information and materials.
在光碟110被插入至光碟播放裝置120後,裝置120讀取光碟110上之資料資訊,並且對所讀取之光碟資料進行錯誤偵測。After the optical disc 110 is inserted into the optical disc playback device 120, the device 120 reads the information information on the optical disc 110 and performs error detection on the read optical disc data.
若偵測到讀取之光碟資料有錯誤,並且該資料錯誤超出了區域錯誤校正資源(例如區域的或下載至區域的錯誤校正算法等)所能修復之範圍,例如因被嚴重破壞而無法讀出,則光碟播放裝置120將根據光碟110上提供之光碟服務提供商之鏈接資訊,藉由網路130與網路伺服器140鏈接,請求下載與光碟110上被破壞資料相對應的備份資料,以修復被破壞之資料。If it is detected that there is an error in the read disc data, and the data error exceeds the range that can be repaired by the regional error correction resource (such as the area or the error correction algorithm downloaded to the area), for example, it cannot be read due to serious damage. The disc playback device 120 will link to the web server 140 via the network 130 according to the link information of the optical disc service provider provided on the optical disc 110, and request to download the backup data corresponding to the corrupted data on the optical disc 110. To repair damaged data.
網路伺服器140收到光碟播放裝置120之錯誤校正請求後,先根據光碟之識別資訊(ID)對光碟110進行識別,以判斷該光碟110是否屬於可提供服務之光碟。若光碟110屬於可提供服務之光碟,則伺服器140將在光碟資料備份庫150中,擷取與光碟110對應的資料庫,然後根據用戶端,即光碟播放裝置120之請求發送與錯誤資料相對應的備份資料。光碟服務提供商可根據用戶端之請求及所提供之服務向用戶收取相應的成本。After receiving the error correction request from the optical disc playback device 120, the network server 140 first discriminates the optical disc 110 according to the identification information (ID) of the optical disc to determine whether the optical disc 110 belongs to a serviceable optical disc. If the optical disc 110 belongs to a disc that can provide a service, the server 140 will retrieve the database corresponding to the optical disc 110 in the optical disc data backup library 150, and then send and error data according to the request of the user terminal, that is, the optical disc playback device 120. Corresponding backup data. The disc service provider can charge the user the corresponding cost according to the request of the client and the service provided.
光碟播放裝置120用接收到之備份資料置換自光碟上讀出之被破壞之錯誤資料,然後將其連同讀出之正確資料以及區域錯誤校正資源可修復之錯誤資料一起進行等資料播放處理,以播放光碟。區域錯誤校正資源可修復之資料包括相應地錯誤偵測裝置不能偵測出之資料錯誤。The disc playback device 120 replaces the corrupted error data read from the optical disc with the received backup data, and then performs the data playback processing together with the correct data read out and the error data that can be repaired by the regional error correction resource. Play the disc. The area error correction resource can repair the data including the corresponding error detection device can not detect the data error.
根據光碟被破壞程度不同,以及用戶端光碟播放裝置錯誤校正能力不同,用戶端請求下載之用於錯誤校正之備份資料量不一樣。若傳輸之資料量較大而頻寬較小,就可能使備份資料的下載不能與光碟播放進度相一致,而影響播放效果,可能導致播放不連續。因此,在用戶端,即光碟播放裝置120中可設置一緩衝裝置,用來對光碟資料進行預先下載,以使替代錯誤資料之備份資料能夠提前下載至該緩衝裝置中備用,以免影響光碟播放進程。Depending on the degree of damage to the disc and the error correction capability of the user-side disc playback device, the amount of backup data requested by the client for error correction is different. If the amount of data transmitted is large and the bandwidth is small, the download of the backup data may not be consistent with the progress of the disc playback, which may affect the playback effect, which may result in discontinuous playback. Therefore, a buffer device can be disposed in the user terminal, that is, the optical disc playback device 120, for pre-downloading the optical disc data, so that the backup data of the substitute error data can be downloaded to the buffer device for backup in advance, so as not to affect the disc playing process. .
藉由以上之措施,就可在要求下載的資料量較大及頻寬不十分寬裕之情況下,保證光碟之播放效果。With the above measures, the playback effect of the optical disc can be guaranteed under the condition that the amount of data to be downloaded is large and the bandwidth is not very wide.
圖2係根據本發明之一實施例的光碟資料錯誤校正之方法流程圖。首先,光碟播放裝置讀取光碟上之資料(步驟S210)。光碟播放裝置中之驅動裝置自光碟上讀取的光碟資料一般係錯誤校正代碼ECC(Error Correction Code)資料塊。ECC塊係對節目資料進行壓縮後之添加校驗碼的資料塊,藉由其可在傳輸時間對資料進行錯誤校正,並且允許一定之容錯率。2 is a flow chart of a method for error correction of optical disc data according to an embodiment of the present invention. First, the disc playback device reads the material on the optical disc (step S210). The optical disc data read by the drive device in the disc playback device from the optical disc is generally an error correction code ECC (Error Correction Code) data block. The ECC block is a block of data added with a check code after compression of the program material, whereby the data can be error-corrected at the transmission time and a certain fault tolerance rate is allowed.
然後,對所讀取之光碟資料進行錯誤偵測(步驟S220)。因為光碟播放裝置之前端所讀取之ECC資料塊能夠根據其中之校驗碼被線上校正,所以在偵測到一ECC資料塊存在錯誤時,若該錯誤在ECC容錯率允許之範圍內,則光碟播放裝置之驅動裝置將對ECC塊進行線上錯誤校正,並將被校正過之ECC塊被標記為正確資料。而對於具有超過其容錯率之錯誤之ECC塊,則標記為錯誤資料。按照通常之做法,若一ECC資料塊被標記為錯誤資料塊,則該資料塊將被直接丟棄,而在本發明中將採用置換之方法對其進行修正。Then, error detection is performed on the read disc data (step S220). Because the ECC data block read by the front end of the optical disc playback device can be corrected online according to the check code therein, when an error occurs in an ECC data block, if the error is within the allowable range of the ECC fault tolerance rate, then The drive of the disc playback device will perform an online error correction on the ECC block and mark the corrected ECC block as the correct material. For ECC blocks with errors that exceed their fault tolerance, they are marked as error data. As a general rule, if an ECC data block is marked as an erroneous data block, the data block will be directly discarded, and in the present invention, the replacement method will be used to correct it.
接著,根據所偵測到之錯誤資料,光碟播放裝置將獲取該錯誤資料之描述資訊(步驟S230)。每一被標記為錯誤之ECC資料塊,均有其獨有之標識資訊,如起始位址、結束位址等。此標記資訊可被用來識別該ECC塊資料及與該ECC資料塊對應的被壓縮之節目資料。Then, based on the detected error data, the disc playback device acquires the description information of the error data (step S230). Each ECC data block marked as erroneous has its own unique identification information, such as the start address and the end address. This tag information can be used to identify the ECC block data and the compressed program material corresponding to the ECC data block.
再接著,光碟播放裝置藉由光碟上提供之網路服務提供商之網路鏈接資訊,向相應的網路伺服器發出一錯誤校正請求資訊(步驟S240),該請求資訊包括:光碟之識別資訊(ID),光碟播放裝置之鏈接資訊,錯誤資料之描述資訊以及要求下載與錯誤資料相應的備份資料以替換錯誤資料之請求等。網路服務提供商之網路鏈接資訊亦可係儲存在其他媒體上,如光碟之包裝說明上等。錯誤資料之描述資訊包括ECC資料塊之標記資訊等。若相應的網路錯誤校正需要收費,則相應的網路錯誤校正請求資訊亦應當包括成本支付資訊等。Then, the CD player sends an error correction request message to the corresponding network server by using the network link information of the network service provider provided on the CD (step S240), and the request information includes: the identification information of the CD. (ID), link information of the disc player, description information of the error data, and request to download the backup data corresponding to the error data to replace the error data. Internet service provider's web link information can also be stored on other media, such as the package description of the disc. The description of the error data includes the information of the ECC data block. If the corresponding network error correction needs to be charged, the corresponding network error correction request information should also include cost payment information.
相應的網路伺服器根據錯誤校正請求向光碟播放裝置發送與錯誤資料相應的備份資料。The corresponding network server sends the backup data corresponding to the error data to the optical disc playback device according to the error correction request.
光碟播放裝置將用接收到之備份資料對應的置換錯誤資料(步驟S250)。接收到之備份資料可在光碟播放裝置中先進行緩衝儲存處理,以保證光碟之無縫播放。The disc playback device will use the replacement error data corresponding to the received backup data (step S250). The received backup data can be buffered and stored in the disc playback device to ensure seamless playback of the disc.
最後,光碟播放裝置根據自網路中下載之備份資料,及自光碟上讀取之正確資料,播放光碟(步驟S260)。備份資料及自光碟上讀取之正確資料經過解壓縮後,再進行相應的解碼裝置,得到節目資料流,然後輸出播放節目。Finally, the disc playback device plays the disc based on the backup data downloaded from the network and the correct data read from the disc (step S260). After the backup data and the correct data read from the optical disk are decompressed, the corresponding decoding device is performed to obtain a program data stream, and then the broadcast program is output.
用自網路中下載備份資料之方法錯誤校正,不限於區域不能修復之錯誤,亦可係區域可修復之錯誤資料,例如區域錯誤校正資源之錯誤修復效果或修復速度不能滿足光碟播放要求。The method of downloading backup data from the network is incorrectly corrected. It is not limited to the area that cannot be repaired. It can also be an area that can be repaired. For example, the error correction effect of the area error correction resource or the repair speed cannot meet the disc playback requirements.
藉由以上方法,光碟之播放效果就可不因其中資料被破壞而區域不能修復或修復效果不理想之情況,自而保證光碟良好之播放效果。By the above method, the playback effect of the optical disc can be prevented from being damaged or the area cannot be repaired or the repair effect is not satisfactory, thereby ensuring a good playback effect of the optical disc.
圖3係根據本發明之一實施例之光碟資料錯誤校正之裝置300之塊圖。如圖3所示,錯誤校正裝置300包括一錯誤偵測裝置310,對自光碟上讀取之資料進行錯誤偵測。光碟播放裝置前端對超出容錯率之ECC資料塊標記為錯誤資料。3 is a block diagram of an apparatus 300 for optical disc data error correction in accordance with an embodiment of the present invention. As shown in FIG. 3, the error correction device 300 includes an error detection device 310 for error detection of data read from the optical disc. The front end of the disc playback device marks the ECC data block that exceeds the fault tolerance rate as an error material.
錯誤校正裝置300亦包括一獲取裝置320,用於獲取錯誤資料之描述資訊。若錯誤偵測裝置310偵測到一ECC資料塊錯誤,則裝置320將獲取該錯誤資料之描述資訊,例如該資料之起始位址、結束位址、播放時間等。The error correction device 300 also includes an acquisition device 320 for obtaining description information of the error data. If the error detection device 310 detects an ECC data block error, the device 320 will obtain the description information of the error data, such as the start address, the end address, the play time, and the like of the data.
若藉由網路錯誤校正之方式需要收費,則儘量使用區域錯誤校正資源錯誤校正將減少用戶開支,但錯誤修復效果較差或修復時間較長影響播放效果時,亦係應當藉由網路進行錯誤校正。If the network error correction method requires charging, try to use the regional error correction resource error correction to reduce user expenses. However, if the error repair effect is poor or the repair time is long, the playback effect should be made through the network. Correction.
光碟錯誤校正裝置300亦包括一請求裝置330。請求裝置330將根據被偵測出之錯誤資料的描述資訊,向光碟內容服務商之網路伺服器發出錯誤校正請求資訊。錯誤校正請求資訊包括:光碟之標識資訊(ID),光碟播放裝置之鏈接資訊,錯誤資料之描述。錯誤校正請求資訊中亦可包括:要求下載與錯誤資料相對應的備份資料進行錯誤校正之請求,以及在需要錯誤校正成本之情況下之成本支付情況等。The disc error correction device 300 also includes a request device 330. The requesting device 330 sends an error correction request message to the network server of the optical disc content service provider according to the description information of the detected error data. The error correction request information includes: identification information (ID) of the optical disc, link information of the optical disc playback device, and description of the error data. The error correction request information may also include: a request to download the backup data corresponding to the error data for error correction, and a cost payment situation in the case where the error correction cost is required.
光碟錯誤校正裝置300亦包括一緩衝儲存裝置340。自網路中下載的錯誤校正資料量可能比較大,亦可能資料傳送頻寬比較小,而使得錯誤校正資料不能及直接自光碟上讀取之資料一樣,能夠以同樣之速度進行處理,因此自網路中下載之錯誤校正資料可在被進行播放處理之前預先下載至緩衝儲存裝置340中,以保證光碟之無縫播放。錯誤校正資料可在播放過程中下載,但應當保證在播放進程需要時,相應的錯誤校正資料已經儲存在裝置340中。The disc error correction device 300 also includes a buffer storage device 340. The amount of error correction data downloaded from the network may be relatively large, and the data transmission bandwidth may be relatively small, so that the error correction data cannot be processed at the same speed as the data directly read from the optical disc, so The error correction data downloaded in the network can be pre-downloaded to the buffer storage device 340 before being played back to ensure seamless playback of the optical disc. The error correction data can be downloaded during playback, but it should be ensured that the corresponding error correction data is already stored in device 340 as needed by the playback process.
光碟錯誤校正裝置亦包括一置換裝置350,以用下載之錯誤校正資料替換相應的錯誤資料。為保證能夠對資料進行正常之播放處理,錯誤資料不應當在被向後傳送,而是將下載的備份資料及自光碟上讀取之正確資料以及區域錯誤校正資源可修復之錯誤資料向後傳送,因此需要將錯誤資料用下載的錯誤校正資料置換後向後傳送。The disc error correction device also includes a replacement device 350 for replacing the corresponding error data with the downloaded error correction data. In order to ensure normal playback of the data, the error data should not be transmitted backwards, but the downloaded backup data and the correct data read from the optical disc and the error data repaired by the regional error correction resource are transmitted backwards. The error data needs to be replaced with the downloaded error correction data and then transmitted backward.
藉由上面之裝置300,光碟播放裝置之錯誤校正能力增強,被修復之錯誤可達成完好如初的狀態。自網路中下載之備份資料,可儲存在光碟播放裝置中以備以後播放。With the above device 300, the error correction capability of the optical disc playback device is enhanced, and the corrected error can be achieved in an intact state. The backup data downloaded from the network can be stored in the disc playback device for later playback.
圖4係根據本發明之一實施例的光碟播放裝置400之塊圖。光碟播放裝置400藉由讀取裝置410自光碟上讀取光碟資料,經光碟錯誤校正裝置300進行網路錯誤校正後,再將資料在解碼裝置420中進行解碼處理,最後用於光碟播放。4 is a block diagram of a disc playback device 400 in accordance with an embodiment of the present invention. The optical disc playback device 400 reads the optical disc data from the optical disc by the reading device 410, performs network error correction by the optical disc error correcting device 300, and then decodes the data in the decoding device 420, and finally uses it for disc playback.
圖5係根據本發明之一實施例的在前端進行網路置換錯誤校正之光碟播放裝置500塊圖。下面以藍光光碟播放器為例講述。藍光光碟播放器之驅動器504讀取藍光光碟資料後,對所讀取的ECC資料塊在ECC解碼裝置506中進行解碼。FIG. 5 is a block diagram of a disc playback apparatus 500 for performing network replacement error correction at the front end according to an embodiment of the present invention. Let's take the Blu-ray Disc player as an example. After the Blu-ray Disc player driver 504 reads the Blu-ray disc material, it decodes the read ECC data block in the ECC decoding device 506.
在ECC資料塊被解碼後,錯誤的ECC資料將被錯誤校正裝置300藉由網路進行錯誤校正,自網路中下載的節目的壓縮備份資料藉由切換裝置510及自光碟上之正確資料一起向後傳送,並進行解碼等處理以播放光碟。在圖5中之切換裝置510可為裝置300中置換裝置350之一部分,用於實現將網路中下載之備份資料置換錯誤資料。After the ECC data block is decoded, the erroneous ECC data will be error corrected by the error correction device 300 through the network, and the compressed backup data of the program downloaded from the network is switched by the switching device 510 and the correct data from the optical disk. Transfer backwards and perform processing such as decoding to play the disc. The switching device 510 in FIG. 5 may be part of the replacement device 350 in the device 300 for implementing replacement of the backup data downloaded in the network with error data.
被錯誤校正後的資料藉由緩衝裝置520後,由資料解碼裝置530進行解碼,如進行MPEG壓縮資料之解碼等,最後解碼後的資料被傳送至輸出顯示裝置540中,播放相應的節目。The error-corrected data is decoded by the data decoding device 530 by the buffer device 520, such as decoding of MPEG compressed data, and the finally decoded data is transmitted to the output display device 540 to play the corresponding program.
以上雖然結合實施例描述了本發明,很明顯對於熟習此項技術者根據前面所描述之內容作出多種替代、修改及變化係顯而易見,因此,所有此等替代、修改及變化均應落入本發明之申請專利範圍的精神及範圍之中。The present invention has been described in connection with the embodiments, and it is obvious that many alternatives, modifications, and variations are apparent to those skilled in the art in light of the foregoing description. The spirit and scope of the patent application scope.
110...光碟110. . . Disc
120...光碟播放裝置120. . . Disc player
130...網路130. . . network
140...網路伺服器140. . . Web server
150...光碟資料備份庫150. . . Disc data backup library
300...錯誤校正裝置300. . . Error correction device
310...錯誤偵測裝置310. . . Error detection device
320...獲取裝置320. . . Acquisition device
330...請求裝置330. . . Request device
340...緩衝儲存裝置340. . . Buffer storage device
350...置換裝置350. . . Replacement device
400...光碟播放裝置400. . . Disc player
410...讀取裝置410. . . Reading device
300...光碟錯誤校正裝置300. . . Disc error correction device
420...解碼裝置420. . . Decoding device
500...光碟播放裝置500. . . Disc player
504...藍光唯讀驅動器504. . . Blu-ray read-only drive
506...ECC解碼裝置506. . . ECC decoding device
510...切換裝置510. . . Switching device
520...緩衝裝置520. . . Buffer device
530...解碼裝置530. . . Decoding device
540...顯示輸出裝置540. . . Display output device
300...錯誤校正裝置300. . . Error correction device
藉由實施例,參照隨附圖式對本發明作進一步詳盡解釋。圖1係根據本發明之一實施例之光碟播放系統示意圖;圖2係根據本發明之一實施例之光碟資料錯誤校正方法流程圖;圖3係根據本發明之一實施例之光碟資料錯誤校正裝置之塊圖;圖4係根據本發明之一實施例之光碟播放裝置之塊圖;及圖5係根據本發明之一實施例之光碟播放裝置之塊圖。在所有之上述隨附圖式中,相同之標號表示具有相同、相似或相應的特徵或功能。The invention will be further explained in detail by reference to the accompanying drawings. 1 is a schematic diagram of a disc playback system according to an embodiment of the present invention; FIG. 2 is a flowchart of a disc data error correction method according to an embodiment of the present invention; FIG. 3 is a disc data error correction according to an embodiment of the present invention. Figure 4 is a block diagram of a disc playback apparatus in accordance with an embodiment of the present invention; and Figure 5 is a block diagram of an optical disc playback apparatus in accordance with an embodiment of the present invention. Throughout the drawings, the same reference numerals are used to refer to the same or similar features.
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