1 METHOD OF PRESENTING AUXILIARY DATA FOR AN INTERACTIVE RECORDING MEDIUM
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method of presenting A/ V data and contents data recorded on an interactive recording medium and contents data provided by a contents providing server comiected through the Intemet.
2. Description of the Related Art
High-density recording media such as optical disks capable of recording large amounts of data are being widely used. The DVD (digital versatile disc), which is an optical recording medium capable of recording large amounts of high-quality digital video and audio data, is one example of these high-density recording media.
The DVD includes a data stream recording area in which digital A/V data streams are recorded and a navigation data recording area in which navigation data required for playback control of the A/V data is recorded.
When a DVD is loaded into a DVD reproducing apparatus, the DVD reproducing apparatus first reads the navigation data recorded in the navigation data recording area and stores the navigation data in an internal memory. The DVD reproducing apparatus then begins reproduction of the A/V data recorded in the data stream recording area using the stored navigation data, thereby providing various functions of the DVD to a viewer.
The development of new interactive DVDs is being progressing rapidly. Unlike the DVD, the interactive DVD (I-DVD) contains additional contents data, which is detailed information about A/V data recorded thereon, and provides the contents data through a user interface. The contents data may be recorded on the I-DVD as data files such as html files.
In addition, a method for obtaining additional contents data from a contents providing server connected through the Internet and presenting the contents data while A/V data and contents data recorded on the I-DVD are reproduced is under development. However, an effective method for presenting the contents data appropriately according to the attributes is not yet available.
It is an object of the present invention to provide a method of presenting auxiliary contents data recorded on an interactive recording medium or contents data provided by an external contents providing server appropriately according to the attributes using attribute information recorded on the interactive recording medium or provided by the contents providing server.
The method of reproducing an interactive recording medium in a reproducing apparatus in accordance with the present invention comprises the steps of (a) checking attribute information for auxiliary contents data of A/V data recorded on the interactive recording medium and (b) determining a presentation method for the auxiliary contents data based on the attribute infonnation and presenting the auxiliary contents data accordingly.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate the
preferred embodiments of the invention, and together with the description, serve to explain the principles of the present invention.
In the drawings:
FIG. 1 illustrates an interactive optical disk reproducing apparatus in which the present invention may be advantageously embodied;
FIG. 2 illustrates the relationship among an A/V data stream, contents navigation information, and contents data files in accordance with the present invention;
FIG. 3 illustrates a first embodiment of a method for recording attribute information for contents data files in accordance with the invention;
FIG. 4 illustrates a second embodiment of a method for recording attribute information for contents data files in accordance with the invention;
FIG. 5 illustrates a third embodiment of a method for recording attribute information for contents data files in accordance with the invention; and
FIG. 6 illustrates a fourth embodiment of a method for recording attribute information for contents data files in accordance with the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In order that the invention may be fully understood, preferred embodiments thereof will now be described with reference to the accompanying drawings.
FIG. 1 illustrates an interactive optical disk reproducing apparatus in which the present invention may be advantageously embodied. The reproducing apparatus 100 comprises an optical pickup 11, an IDVD system 12, a microprocessor 13, a buffer memory 14, and an Intemet interface 15 through which the apparatus 100 is connected to a contents providing server 300.
The IDVD system 12 includes a DVD engine for reproducing A/V data recorded on an I-DVD 10 and an enhanced navigation (ENAV) engine for reproducing contents data provided by the contents providing server 300 or contents data recorded on the I-DVD 10.
The IDVD system 12 outputs the contents data in synchronization with the A/V data reproduced from the IDVD 10. As shown in FIG. 1, the reproducing apparatus 100 is connected to the contents providing server 300 through the Intemet interface 15 by the mutual operations of the microprocessor 13 and the ENAV engine included in the IDVD system 12.
ENAV contents data, which is additional contents data associated with the A/V data reproduced from the I-DVD 10, is downloaded from the contents providing server 300 and then temporarily stored in the buffer memory 14. The buffer memory 14 can be logically divided into a first buffer (buffer 1) and a second buffer (buffer 2).
The ENAV engine in the IDVD system 12 outputs the A/V data from the I-DVD 10 in synchronization with the ENAV contents data from the I-DVD 10 or outputs theA/V data from the I-DVD 10 in synchronization with the ENAV contents downloaded from the contents providing server 300.
The ENAV contents data recorded on the I-DVD 10 is organized into a plurality of data files and ENAV navigation information for reproducing the data files in synchronization with A/V data may also be recorded thereon. The contents providing server 300 provides various ENAV contents data associated with the A/V data recorded on the I-DVD 10 as a plurality of data files and provides ENAV navigation information for reproducing the data files in synchronization with
