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  Method for configuring composite file structure for data reproduction, and method and apparatus for reproducing data using the composite file structureUSPTO Application #: 20070217305Title: Method for configuring composite file structure for data reproduction, and method and apparatus for reproducing data using the composite file structure Abstract: A method and apparatus for reproducing data is disclosed. The method and apparatus configures a composite file structure to simultaneously reproduce data recorded in a recording medium and other data recorded in a local storage, and reproduces data using the configured composite file structure. A variety of methods for configuring the composite file structure are described in preferred embodiments, such that a method for effectively configuring the composite file structure regardless of a current condition state is given. Therefore, data recorded in the recording medium and other data stored in the local storage can be effectively used. (end of abstract) Agent: Harness, Dickey & Pierce, P.L.C - Reston, VA, US Inventors: Kang Soo Seo, Jea Yong Yoo, Byung Jin Kim, Seung Hoon Lee USPTO Applicaton #: 20070217305 - Class: 369047100 (USPTO) Related Patent Categories: Dynamic Information Storage Or Retrieval, Control Of Storage Or Retrieval Operation By A Control Signal To Be Recorded Or Reproduced The Patent Description & Claims data below is from USPTO Patent Application 20070217305. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] This application claims the benefit of Korean Patent Application No. 10-2004-0073794, filed on Sep. 15, 2004, which is hereby incorporated by reference as if fully set forth herein. DOMESTIC PRIORITY [0002] This is a continuation application of U.S. application Ser. No. 11/205,101 filed on Aug. 17, 2005 which claims the benefit of U.S. Provisional Application No. 60/601,993, filed on Aug. 17, 2004, in the name of inventors Kang Soo SEO, Jae Yong Yoo, Byung Jin KIM, and Seung Hoon LEE, entitled "METHOD OF CONFIGURING MANAGEMENT FILE IN BLU-RAY DISC", the entire contents of both of which are hereby incorporated by reference. BACKGROUND OF THE INVENTION [0003] 1. Field of the Invention [0004] The present invention relates to a method and apparatus for reproducing data, and more particularly to a method and apparatus for configuring a composite file structure, and reproducing data using the composite file structure, such that data recorded in a recording medium, and other data not present in the recording medium are simultaneously reproduced. [0005] 2. Discussion of the Related Art [0006] Generally, there has been widely used an optical disc acting as a recording medium capable of recording a large amount of data therein. Particularly, there has recently been developed a high-density optical recording medium capable of recording/storing high-quality video data and high-quality audio data for a long period of time, for example, a Blu-ray Disc (BD). [0007] The BD based on the next-generation recording medium technique has been considered to be the next-generation optical recording solution capable of storing much more data than a conventional DVD. In recent times, the international standard technical specification associated with the BD has been established. [0008] In association with the above-mentioned situation, there has recently been developed an optical recording/reproducing device based on the BD international standard, but the BD international standard has not yet been completed, such that many limitations and problems occur in developing the optical recording/reproducing device. [0009] Particularly, the above-mentioned optical recording/reproducing device must consider not only a basic function for recording/reproducing data of the BD, but also an additional function for enabling the optical recording/reproducing device to interact with peripheral digital devices. In other words, the optical recording/reproducing device must receive an external input signal, must display the received signal, and must reproduce desired data using the external input signal and the BD. [0010] However, a unified standard specification for achieving the above-mentioned additional function has not yet been established, such that many limitations and problems occur in developing a BD-based optical recording/reproducing device. Specifically, the limitations and problems become serious in a specific technical field for reproducing data using both an external input signal and a BD reproduction signal as a single reproduction unit. SUMMARY OF THE INVENTION [0011] Accordingly, the present invention is directed to a method for configuring a composite file structure for data reproduction, and a method and apparatus for reproducing data using the composite file structure that substantially obviate one or more problems due to limitations and disadvantages of the related art. [0012] An object of the present invention is to provide a method and apparatus for reproducing new data suitable for a high-density recording medium. [0013] Another object of the present invention is to provide a method for configuring a composite file structure, which can reproduce not only data of a recording medium but also other data not present in the recording medium, and a method for systemizing the above-mentioned method as standardized information, and providing the systemized result. [0014] Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. [0015] To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a method for configuring a composite file structure for data reproduction, wherein the composite file structure manages main data recorded in a recording medium and sub-data stored in a local storage while being associated with the main data, the method includes the step of including a downloaded playlist for reproducing the main data and the sub-data in the composite file structure. [0016] In another aspect of the present invention, a method for configuring a composite file structure for data reproduction, wherein the composite file structure manages main data recorded in a recording medium and sub-data stored in a local storage while being associated with the main data, includes independently including an original playlist for reproducing the main data and a downloaded playlist for reproducing the sub-data in the composite file structure. [0017] In another aspect of the present invention, a method for configuring a composite file structure for data reproduction, wherein the composite file structure manages main data recorded in a recording medium and sub-data stored in a local storage while being associated with the main data, includes including a composite playlist formed by combining an original playlist and a downloaded playlist in the composite file structure, such that the main data and the sub-data are simultaneously reproduced. [0018] In another aspect of the present invention, a method for configuring a composite file structure for data reproduction, wherein the composite file structure is formed using main data recorded in a recording medium, one or more original playlists for reproducing the main data, and a downloaded playlist stored in the a storage, includes allowing the composite file structure to include a downloaded playlist substituted for one of the original playlist. [0019] In another aspect of the present invention, a method for reproducing data includes (a) recognizing identification (ID) information of a recording medium recording main data, and determining whether sub-data having the same ID as that of the recording medium is present in a local storage, (b) if the sub-data is present in the local storage, configuring a composite file structure for simultaneously reproducing the main data and the sub-data, and (c) reproducing the main data and the sub-data using the configured composite file structure. [0020] In a further aspect of the present invention, an apparatus for reproducing data includes a pickup unit for reading main data from a recording medium; a local storage for storing sub-data associated with the main data; a decoder for decoding the main data and the sub-data; and a controller for configuring a composite file structure, and controlling a decoding process of the decoder using the configured composite file structure, such that the main data and the sub-data are simultaneously reproduced. [0021] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. Continue reading... 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