KR100689427B1 - Method for recording and reproducing a navigation information on high density disc medium - Google Patents

Abstract

The present invention relates to a method of recording and reproducing reproduction control information of a high density optical recording medium, comprising: a step of configuring reproduction control information for still reproduction or shift reproduction into a pack which is a basic unit in which video or audio is recorded; And intermittently inserting and recording the reproduction control information configured in the pack unit into an area in which video data is logically partitioned and recorded, and reading data stored on an optical recording medium such as a high density DVD to read still images. Define and configure a real-time navigation data pack RN_PCK for performing a still playback operation such as an output or performing a shift playback operation through an image scan, and cope with the still playback or a shift playback. It is a very useful invention to perform normal still regeneration or shift regeneration operation by searching for and confirming a still reproduction or shift regeneration request by additionally recording the image data to the front end of the logically partitioned recording unit.

High density DVD, playback control information, still playback, variable speed playback, real time navigation data pack

Description

Method for recording and reproducing reproduction control information of high density optical recording medium {Method for recording and reproducing a navigation information on high density disc medium}             

1 is a block diagram of a high-density DVD device to which a reproducing control information recording and reproducing method of a high density optical recording medium according to the present invention is applied.

2 to 4 show the configuration of the real-time navigation data pack which is the reproduction control information of the high density optical recording medium according to the present invention,

5 illustrates a configuration of real time information for shift reproduction according to the present invention;

6 illustrates a configuration of real time information for still playback according to the present invention.

※ Explanation of code for main part of drawing

11: high density DVD (HDVD) 12: optical pickup (P / U)

13 analog signal processor 14 digital signal processor

15: data separation unit 16: data output unit                 

17: interface unit 18: control unit

19: memory 100: high density DVD player

200: digital television

The present invention reads data stored on an optical recording medium such as a high density digital versatile disc (HDVD) to perform a still playback operation such as still image output, or to scan an image. A reproduction control information recording and reproducing method of a high-density optical recording medium for performing a shift reproducing operation through the same.

In recent years, digital televisions (D-TVs) receiving digital broadcast signals and outputting high-definition video screens have been rapidly spreading, and high-definition digital televisions (HD-TVs) are expected to be commercially available. .

On the other hand, a high-density DVD device, for example, a high-density DVD player (HDVD-Player), which reads and reproduces data from a high-density DVD (HDVD) under development, outputs a high-definition video screen through a digital interface such as IEEE 1394. It can be used in conjunction with a digital television (D-TV) or high-definition digital television (HD-TV), the recording area of the high-definition DVD, Real-time data such as video and audio data for presentation (Realtime Data) Is divided into a data recording area for recording and storing, and a management information recording area for recording and storing management information for controlling and managing reading and reproducing of the real-time data.

Therefore, using the navigation data recorded in the management information recording area, it is possible to select and perform various reproduction operations such as searching and reproducing or repeatedly playing video and audio data which are real-time data recorded in the data recording area. do.

However, in order to read out the data stored in the high-density DVD and to perform a still reproduction operation such as still image output or to perform a shift reproduction operation through an image scan, the navigation stored in the management information recording area is stored. In addition to the data, management information for performing still and shift playback, that is, navigation data, must be additionally recorded for each recording unit (HOBU: HDVD Object Unit) in which video data for still or shift playback is logically partitioned. Since there is no specific definition and recording / reproducing method of navigation data, the solution is urgently required.

Accordingly, the present invention was created to solve the above problems, and defines a real-time navigation data pack for still reproduction and shift reproduction operations when reading and reproducing data from an optical recording medium such as a high density DVD, and reproducing still or shifting. It is an object of the present invention to provide a reproducing control information recording and reproducing method of a high-density optical recording medium in which video data corresponding to reproduction is additionally recorded in a logically divided recording unit so that normal still reproduction and shift reproduction operations are performed. .

The method for recording reproduction control information of the high density optical recording medium according to the present invention for achieving the above object comprises a pack which is a basic unit in which video or audio is recorded, the reproduction control information for still reproduction or shift reproduction. step; And intermittently inserting and recording the reproduction control information configured in the pack unit into an area in which moving image data is logically partitioned and recorded.

In addition, the reproduction control information reproduction method of the high-density optical recording medium according to the present invention comprises: a step of confirming a request for still reproduction or shift reproduction; Retrieving a pack of reproduction control information for still or shift reproduction, in which moving picture data is recorded in a logically partitioned and recorded area according to the request confirmation; And three steps of performing the requested still or shift reproduction by referring to the contents of the reproduction control information recorded in the retrieved pack.

Hereinafter, a preferred embodiment of the reproduction control information recording and reproducing method of the high density optical recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

First, the high density optical recording medium according to the present invention, for example, a high density DVD, includes playback control information for still reproduction or shift reproduction of moving image data, which is a pack that is a basic recording unit of the moving image data, and thus the moving image data. Has a structure intermittently inserted and recorded in the recording area in which the recording medium has been recorded. As shown in FIG. An optical pickup 12; An analog signal processor (13) for signal processing the analog signal output from the optical pickup and outputting the analog signal as a digital signal; A digital signal processor (14) for signal-processing the digital signal output from the analog signal processor and outputting the digital signal as a digital data stream; A data separator 15 for separately outputting presentation data and navigation data included in the digital data stream; A data output unit 16 for sequentially outputting or repeatedly outputting presentation data output from the data separation unit; A controller 18 for controlling the operation of the data output unit according to the navigation data or the user input key output from the data separator; A storage unit 19 for storing data necessary for operation control of the controller; And an interface unit 17 connected to and connected with the digital television 200 through a digital interface such as IEEE 1394. The description of the operation of the high density DVD player 100 configured as described above, in particular, high density DVD In the reading and reproducing of the data recorded in the recording, navigation data in a pack unit for carrying out a still reproducing operation or a shift reproducing operation, and high-density optical recording for additionally recording the recording unit for each recording unit to perform a still or shift reproducing operation normally. The reproduction control information recording and reproduction operation of the medium will be described in detail as follows.

First, FIGS. 2, 3, and 4 illustrate a configuration of a real-time navigation data pack, which is reproduction control information of a high-density optical recording medium according to the present invention. As described above, a recording unit for still reproduction or shift reproduction. The Realtime Navigation Data Pack (RN_PCK: Realtime Navigation Data Pack) additionally recorded is, for example, a 10-byte pack header information (HD_PCK) recording area and a 2038-byte data recording area as shown in FIG. It can be configured in units of 2048 bytes of pack (HD_Pack), and the pack header information identifies whether the 2048 byte data pack is a real-time navigation data pack containing navigation information for still reproduction or shift reproduction. 2 bits of Pack Type (Pack Type) information are recorded and included.

Accordingly, when the 2048-byte data pack is a normal data pack, the 2-bit pack type information is recorded as '00', and the 2048-byte data pack is a real-time navigation data pack (RN_PCK). ), Since the 2-bit pack type information is recorded as '01', the data separator 15 of the high-density DVD player 100 described above with reference to FIG. 1 is recorded in the pack header information. Based on the pack type information, the input data pack is separated and output to the data output unit 16 or the control unit 18.

Meanwhile, as shown in FIG. 3, the data recording area includes one byte of application identification information (APP_ID: Application Identifier) and 2037 bytes of real time navigation information (RNI). The application identification information is for indicating whether the information for shift reproduction and still reproduction is included in the real-time navigation information, and the information for shift reproduction is recorded in the real-time navigation information RNI. 3, when the eighth bit b7 is recorded as' 1 'and the information for still reproduction is recorded in the real-time navigation information, the seventh bit b6 is' 1 'is recorded.

When both the information for the speed change reproduction and the information for the still reproduction are recorded in the real-time navigation information, the seventh and eighth bits b6 and b7 are recorded as '1,1', thereby providing a high density DVD. The control unit 18 of the player 100 can determine that information for still reproduction and shift reproduction is recorded in the 2037 bytes of real-time navigation information.

In addition, the 2037-byte real-time navigation information recording area includes general information (RNI_GI: RNI General Information) and a plurality of real-time information (RI # 1 to # n) for real-time navigation information. The general information RNI_GI about the navigation information includes the number of RI_Ns (Number of RI) information and a plurality of start address of RI (RI_SA) for the real-time information. The real-time information (RI) includes application identification information (APP_ID: Application Identifier) indicating whether real-time information is information for still reproduction or information for shift reproduction through image scanning, and a recording size (RI_Size) of real-time information. Information and the real-time information data (RI_Data) are recorded.                     

On the other hand, the application identification information (APP_ID) is recorded in the recording format of 1 byte as described above with reference to Fig. 3, when the information for the speed change reproduction is recorded in the real-time information (RI), 8 When the first bit b7 is recorded as '1' and the information for still reproduction is recorded in the real time information, the seventh bit b6 is recorded as '1', but the seventh and eighth There is no case where all bits b6 and b7 are written as '1,1', i.e., when the information for still and shift reproduction is recorded in the real time information RI.

Hereinafter, the real-time information data (RI_Data) included in the real-time information (RI), in particular the real-time information data for the shift playback operation through the image scan and the shift playback operation according to it, and the real-time information data for still playback operation and accordingly The still playback operation will be described in detail.

First, as shown in FIG. 5, the real time information recorded for the shift regeneration operation through the image scan includes application identification information (APP_ID) indicating whether the information is for the shift regeneration through the image scan and the recording size of the real time information. (RI_Size) information and real-time information data (RI_Data) are recorded and recorded, and the real-time information data includes the number of reference pictures to be scanned in a subsequent recording unit (HOBU) during shift playback. Pic_Ns) information and recording start address (REF_S_ADDR) information for a plurality of reference images are recorded.

Therefore, the control unit 18 of the high-density DVD player 100 searches for and confirms the number information of the reference image recorded in the real-time information data and the recording start address information for the reference image to be scanned, at the time of shift reproduction. By operating the data output unit 16 of the high-density DVD player 100, a shift reproduction operation in which only the reference image is selectively output is performed.

On the other hand, the real-time information recorded for the still playback operation, as shown in Figure 6, the application identification information indicating whether the information for still playback, the recording size information of the real-time information, and the real-time information data is recorded The real time information data includes information (Pic_Ns) of the number of reference images to be output as still images in a continuous recording unit HOBU during still reproduction; Recording size (STL_HOBU_Size) information of the recording unit for still reproduction; Steel type (STL_TY) information; Still time (STL_TM) information; And the still image number (STL_PIC_Ns) information are recorded.

Accordingly, in the control unit 18 of the high density DVD player 100, during still reproduction, the number information of the reference image recorded in the real-time information data, the recording size information of the recording unit for still reproduction, the still type information, the still time information And search and confirm the still image number information to control the data output unit 16 of the high-density DVD player 100 to perform a still reproduction operation corresponding thereto.

As mentioned above, preferred embodiments of the present invention are disclosed for purposes of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. It may be possible to substitute, add, or otherwise.

The reproduction control information recording and reproducing method of the high density optical recording medium according to the present invention, as described above, reads the data stored on the optical recording medium such as a high density DVD, so as to perform a still reproducing operation such as a still image output, Or defining and configuring a real-time navigation data pack RN_PCK for performing a shift reproduction operation through an image scan, and front end of a recording unit in which image data corresponding to the still reproduction or the shift reproduction is logically partitioned. By additionally recording to, it is a very useful invention to perform normal still playback or shift playback operation by searching and confirming when still playback or shift playback is requested.

Claims (12)

A step (1) of configuring reproduction control information for still reproduction or shift reproduction into a pack which is a basic unit in which video or audio is recorded; And And two steps of intermittently inserting and recording the reproduction control information configured in the pack unit into an area in which moving image data is logically partitioned and recorded. The method of claim 1, In the second step, the reproduction control information recording method of the high density optical recording medium, wherein the reproduction control information is additionally recorded at the front end of the recording unit in which video data corresponding to the still reproduction or the shift reproduction is logically partitioned. The method of claim 1, The playback control information of the high-density optical recording medium, characterized in that the playback control information in the pack unit includes the header information recorded with type information indicating the type of the pack, and the navigation information for still reproduction or shift reproduction. How to record. The method of claim 3, In the pack control information, the reproduction control of the high density optical recording medium is characterized in that the navigation information includes identification information for indicating whether the information for still reproduction and the information for shift reproduction are included in the navigation information. How to record information. The method of claim 3, The navigation information is recorded to include real time information including recording start position information of one or more reference images logically partitioned in the recording unit, and general information about the real time information for shift reproduction. A reproduction control information recording method of a high density optical recording medium. The method of claim 3, The navigation information is recorded for real-time information including the information on the still image logically partitioned in the recording unit, and the general information about the real-time information is recorded for still reproduction Playback control information recording method. Confirming a request for still reproduction or shift reproduction; Retrieving a pack of reproduction control information for still or shift reproduction, in which moving picture data is recorded in a logically partitioned and recorded area according to the request confirmation; And And reproducing the requested still or shifted reproduction by referring to the contents of the reproduction control information recorded in the retrieved pack. The method of claim 7, wherein The second step is to retrieve the pack of the reproduction control information by referring to the pack type information recorded at the head of the pack, which is a basic unit of video or audio data recording. In the optical recording medium on which moving image data is recorded, High density optical recording medium having a structure in which reproduction control information for still reproduction or shift reproduction of the moving image data is constituted of a pack which is a basic recording unit of the moving image data, and intermittently inserted and recorded in a recording area in which the moving image data is recorded. . delete The method of claim 1, The reproduction control information recording method of the high density optical recording medium, characterized in that the reproduction control information includes information for specifying a reproduction period during still reproduction. The method of claim 7, wherein And the reproduction control information is recorded with information specifying a reproduction period during still reproduction.

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