KR20000018987A - Method for generating/recording audio/video map information and method for renewing/recording audio/video map information in rewritable recording medium - Google Patents

Abstract

PURPOSE: A method for generating/recording audio/video map information and a method for renewing/recording audio/video map information in a rewritable recording medium are provided, which generates and records an audio/video map information to a still picture and renews and records an audio/video map information to a still picture of a pre-record assembly body. CONSTITUTION: A method for generating/recording audio/video map information and a method for renewing/recording audio/video map information in a rewritable recording medium comprises the steps of: (S11-S17) identifying as to an input recorded still picture is recorded with an audio signal; and (S19, S21) generating and recording an audio/video map information to the recorded still picture as a two kind according to the identifying result, wherein the generated audio/video map information has a region which an information to a pose-write audio signal is recorded. Thereby, it is possible to easily manage and control a memory.

Description

How to record and update audio / video map information on rewritable recording media

The present invention relates to a method for generating and updating recording data of a rewritable recording medium, and more particularly, to generate and record audio / video map information on a recorded still picture when recording a still picture on a rewritable recording medium. And a method of updating and recording audio / video map information of a still image of a previous recording assembly which is linked with a post-record audio included in the deleted recording assembly when the recorded still image recording assembly is deleted.

Optical discs are becoming more common as CDs become more popular, and DVD (Digital Versatile Disc) standards are becoming more expected. Optical discs include CD-Rs and DVD-Rs that can be written once, as well as CD-ROMs and DVD-ROMs for playback purposes. It is becoming. In addition, the working group's activities for the unified standard of DVD-RTRW capable of recording and reproducing are currently in progress.

Here, since rewritable DVD-RAM, DVD-RTRW, and the like are large-capacity recording media, users record various movie pictures or still pictures, and also record audio data of still pictures. When a moving picture or a still picture is recorded, information for later indexing and reproducing is generated together with the recording of the picture and recorded in the reproduction control information (navigation information) file of the recording medium.

The playback control information file has a structure as shown in FIG. 1, wherein the still image bob (VOB) information (S_VOBI # i) and the cell information (Cell # i) are one as described above. Each time a moving picture or still picture is recorded, it is generated and inserted into the reproduction control information file. The playback control information file generated and recorded as described above is read out at the time of playback, and the contents thereof are all stored in the memory. Then, by using the playback control information of the stored memory, a moving picture or a still image corresponding to the item to be played back is searched from the recording medium. You will play it.

The inventors of the present invention generally focus on the fact that a user tends to fix an attribute of a still image, take a plurality of still images, and then change the attribute, so that the maximum number of still image attributes and still images. A grouping method is proposed. The grouped still image recorder (VOB) is composed of a group of still images having the same attribute, and the attribute is divided into a video attribute and an audio attribute. The video attributes include video compression mode (MPAC-1, MPEG-2, etc.), TV system (525/60, 625/50, etc.), aspect ratio (4: 3, Pack 16: 9, etc.), video. Resolution (720 x 480, 704 x 480, 352 x 480, 352 x 240, etc.); The audio attributes may include audio code mode (Dolby MPEG-1, 2, linear PCM audio, etc.), quantization / dynamic range control (DRC), frequency (48 kHz, etc.), audio channel. A number [one channel (mono), two channels (stereo), two channels (dual mono), etc.] etc. are mentioned.

That is, in this method, when recording still images, playback control information and index information are not generated for each still image, and as shown in FIG. According to the identity of the associated audio attribute, a plurality of still images share control information for the reproduction, and the shared reproduction information (VOBI; S_VOBI # i) and reproduction order information (Cell # 2, Cell # 3, ...). ) Grouping and recording the index information of still images (that is, location information for indexing each still image having the same property is grouped and recorded in association with shared playback information), thereby making a large number of still images on a large recording medium. By reducing the amount of playback control information and index information generated by recording an image, a large number of still images can be accessed and reproduced by a small amount of resources of the device. It was made.

Here, the one still image may be composed of only one video part or only one video part and one audio part depending on whether or not an audio signal is inserted at the time of capturing (capturing).

In the above-described method, a plurality of still images (Video Part #i) having the same property in the still image recording aggregate reproduction information (VOBI) field (S_VOBI # i) and audio data originally recorded in association with it (original audio data) ; Audio Part #i] is recorded, and the information includes an address on a recording medium for each still picture and audio. As the address information, only the start address of the first still picture (Video Part #i) is used as an absolute address, and the size of the address map is reduced by using the size as a relative address for each still picture and audio.

After recording a still image using the above-described method, audio data is recorded to generate post-record audio data linked to the still image, or new post-recorded audio data is generated by changing original audio data belonging to the still image. can do.

As such a type of still image data that can be recorded in relation to a still image, a still image consisting of only a video part, a still image consisting of a video part and an audio part, and an after-record audio data can be distinguished. The image may be classified into a still image having audio recording audio data and a still image without audio recording audio data.

According to the types of complex still image data as described above, research is being conducted on how to efficiently generate and record original audio / video map information on still image data. As an example, an audio / video map on still images is studied. There are four ways to record information. In the above method, a still image composed of only video parts, a still image composed of video parts and audio parts, and post-record audio data are subsequently recorded, and a still image composed only of video parts and post-record audio data are subsequently recorded. For still images composed of parts and audio parts, different types of original audio / video map information are generated and recorded.

The still image recorded on the recording medium at the time of capturing (capturing) the still image consists of only the video part or only two cases consisting of the video part and the audio part. Therefore, if the original audio / video map information for a still image consisting of only the video part or the video part and the audio part is generated, and then an audio recording data is recorded for the still image, the original audio / video map In the information, an information field for the review audio data should be generated and recorded.

However, whenever the still image is captured (captured) in the memory of the recording medium playback / player, original audio / video map information for the still image should be generated and recorded sequentially. Since there is no information field for the post-record audio data in the original audio / video map information, when the post-record audio data is recorded for a predetermined still image among the recorded still images, the original audio / video map information is added to the original audio / video map information. There is a problem that the memory management control for generating and inserting an information field for audio data is very complicated.

That is, when the post-record audio data is recorded on the still image, in order to generate and insert and record the information field of the post-record audio data in the original audio / video map information, the pre-recorded audio data is recorded on the corresponding still image recorded in the memory. In the map information, the data recorded after the position at which the information field for the audio recording data is to be inserted is moved and recorded by the size of the field to be inserted, and then the corresponding information field is inserted and recorded. There is a fear that a delay in recording may occur, which may cause an obstacle to real-time processing when data is recorded on the rewritable recording medium.

Accordingly, the present invention was created in view of the above circumstances, and generates audio / video map information for still images having a structure capable of efficiently performing memory management control when recording still images on a rewritable recording medium. It is an object of the present invention to provide a method of generating and updating audio / video map information of a rewritable recording medium for update recording.

1 is a table showing navigation data for managing all data recorded on a recording medium;

FIG. 2 is a conceptual diagram illustrating a still image index information structure for explaining a method of grouping and managing still images.

FIG. 3 is a conceptual diagram showing the structure of the still picture audio / video file information table shown in FIG. 1;

FIG. 4 is a conceptual diagram showing the structure of the audio / video map shown in FIG. 3;

5A and 5B illustrate an example of a data format of an original audio / video map of a still image generated by the audio / video map information generation and recording method of a rewritable recording medium according to the present invention;

FIG. 6 is a diagram showing an example of a data format of a post-record audio map as the map shown in FIG. 5;

FIG. 7 is a conceptual diagram illustrating an embodiment of a method for generating and recording still image original audio / video map information and post-recording audio map information in an audio / video map information generation recording method of a rewritable recording medium according to the present invention. ego,

8 is a block diagram of an apparatus in which an audio / video map information generation and update recording method of a rewritable recording medium according to the present invention is implemented.

9 is a flowchart illustrating an embodiment of an audio / video map information generation and recording method of a rewritable recording medium according to the present invention;

10 is a flowchart of an embodiment of an audio / video map information update recording method of a rewritable recording medium according to the present invention.

※ Explanation of code for main part of drawing

10: optical pickup 20: analog signal processing unit

30: digital signal processing unit 40: A / V processing unit

50: control unit M1 to M3: memory

Audio / video map information generation and recording method of a rewritable recording medium according to the present invention for achieving the above object, in the management data generation and recording method of a rewritable recording medium, the input still image is recorded with the audio signal A first step of confirming that it is recorded; And a second step of generating and recording audio / video map information for the recording still image in two types according to the confirmation result.

In addition, the audio / video map information update recording method of a rewritable recording medium according to the present invention, the management data update recording method of a rewritable recording medium, comprising: a first step of deleting the requested post-recording audio signal; And removing the post-recorded audio signal information recorded in the post-recorded audio signal information recording area fixedly located in the audio / video map information for the still image reproduced in association with the deleted post-recorded audio signal. And a second step of updating and recording the video map information.

In the audio / video map information generation and recording method of the rewritable recording medium according to the present invention as described above, it is confirmed whether the still image to be recorded is recorded with the audio signal, and the still image and the audio signal recorded with the audio signal. For the still image recorded without the recording, the audio / video map information having the area where the information about the post-recorded audio signal that can be reproduced in association with the recorded still image is secured is recorded and generated in different types. Then, when a post-recording audio signal that can be reproduced in association with the recorded still image is recorded, in the secured area of the audio / video map information for the recorded still image, the recorded post-recording audio signal To record information. Further, in the audio / video map information update recording method of the rewritable recording medium according to the present invention, if the post-recording audio is deleted, the post-recording is recorded in the reserved area of the audio / video map information for the recorded still image. By deleting the information on the recording audio signal, the audio / video map information is updated and recorded.

Hereinafter, preferred embodiments of the method for generating and updating audio / video map information of a rewritable recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram showing the structure of a still picture AV file information table S_AVFIT that can be employed in the method for generating and updating audio / video map information of a rewritable recording medium according to the present invention.

As shown in the figure, the still image AV file information table S_AVFIT includes a still image AV file information table information area S_AVFITI, in which information about a still image AV file information table, is recorded, and a still image AV file information. The still image AV file information areas S_AVFI # 1 to be recorded, and the still image AV file information area S_AVFI # i is a still image AV file general information area S_AVFGI, and a plurality of still image recording aggregates. It consists of reproduction information areas S_VOBI # 1 to S_VOBI # n.

The still image recording aggregate reproduction information area S_VOBI # i includes a still image recording aggregate reproduction information general information area S_VOBIGI, a still image recording aggregate reproduction information stream information area S_VOB_STI, and an audio / video map area AV MAP. The still image recording set reproduction information general information area (S_VOBIGI) includes a still image recording set identification code (VOB_ID), a start address of the still image recording set (VOB_S_ADR), the number of video parts (V_Part_Ns), and an effective video part. The number of times (Avail_V_Ns), the number of audio recordings (AR_Aud_Ns), the first recording time (VOB_F_REC_TM) of the still image recording set, and the last recording time (VOB_L_REC_TM) of the still image recording set.

FIG. 4 is a conceptual diagram showing the structure of the audio / video map shown in FIG. 3, which is divided into a plurality of maps (MAP # 1, MAP # 2, ... MAP # n). MAP # 1, MAP # 2, ... MAP # n are classified into two types, one of which is a map having recording information for still images with or without original audio (hereinafter referred to as "original audio / video map"). The other is a map having recording information on the late rock audio data (hereinafter referred to as the "late rock audio map").

In the audio / video map, one map (MAP # 1, MAP # 2, ... MAP # n) is assigned to each of the still image or the post-record audio data of the still image recording set, and the map (MAP # 1) is allocated. , MAP # 2, ... MAP # n) record information on corresponding still image or post-record audio data, respectively.

5A and 5B illustrate an example of a data format of an original audio / video map of a still image generated by an audio / video map information generation recording method of a rewritable recording medium according to the present invention.

5A shows an example of an original audio / video map for a still picture consisting only of video parts.

In the figure, the map type information MAP_TY is assigned two bits to indicate whether the map is a map of a still image with original audio data or a map of a still image without original audio data. "0" is set for still images. The temporary deletion information TE is for indicating the temporary deletion state of the still image (video part), and 1 bit is allocated. Here, the temporary deletion information (TE) can be used for the purpose of deleting all the still images from the recording medium without deleting the still images every time one still image is deleted.

The audio reproduction specifying information A_DEF is for specifying audio data to be reproduced. That is, it is preferable that the audio reproduction specifying information A_DEFAULT is set to 1 bit so as to be set to "0" to reproduce audio data and to "1" to reproduce audio recording data. The number of subpicture streams (SPST_Ns) is for indicating the number of subpicture streams included in the still picture, and 2 bits are allocated, and the audio recording assembly (VOB) recognition code (AR_VOB_ID) is assigned to the still picture. Two bytes are allocated to indicate the identification code of the recording group (VOB) in which the audio recording data is grouped. The audio recording code AR_ID identifies the identification code of the audio recording data for the still image. One byte is allocated to display, and the video part size V_PART_SZ represents one size of the video part for the corresponding still picture.

FIG. 5B shows an example of an original audio / video map for a still picture composed of a video part and an audio part. The difference from FIG. 5A is that the map type (MAP_TY) information is set to "1" and the audio part size ( A field for A_PART_SZ) and the number of audio frames (A_F_Ns) are added.

In the figure, the audio part size A_PART_SZ indicates the size of the audio part for the still image, and 1 byte is allocated, and the audio frame number A_F_Ns is the number of frames constituting the audio part for the still image. 2 bytes are allocated to indicate.

As described above, the original audio / video map for the still image is divided into two types, and each type of map has information fields AR_VOB_ID and AR_ID for audio recording. Therefore, each time the still image is captured (captured) in the memory of the recording medium playback / player, an original audio / video map for the still image is generated and sequentially recorded, and the original audio for the recorded still image is recorded. Since the information field for the post-record audio data is secured in the / video map, when the post-record audio data is recorded with respect to the recorded still image, information about the post-record audio data is recorded in the original audio / video map. It is possible to generate and insert and write in the secured field, thereby facilitating memory management control.

FIG. 6 illustrates an example of a post-record audio map constituting the audio / video map shown in FIG. 4. In the figure, the map type information MAP_TY is for indicating the type of the map, and is set to, for example, "10", and the post-record audio recognition code AR_ID is a recognition code of the post-record audio data for the corresponding still image. 1 byte is allocated to indicate the audio recording size (AR_PART_SZ), and 2 bytes are allocated to indicate the size of the audio recording audio data, and the number of audio frames (A_F_Ns) is the audio frame for the corresponding audio recording audio data. Two bytes are allocated by indicating the number of.

FIG. 7 is a conceptual diagram illustrating a method of managing still image original audio / video maps and post-record audio maps in the audio / video map information generation and recording method of a rewritable recording medium according to the present invention.

In the figure, the original program chain (original PGC) includes a plurality of movie cells (Cell # 1, Cell # 5, Cell # N) in which playback order information for a movie is recorded, and playback for still images. Still image cells (still Cells) in which the order information is recorded are composed of cells shaded in the drawing, that is, Cell # 2, Cell # 3, Cell # 4, and Cell # 6. Still picture video object information (S_VOBI # 1, S_VOBI # 2, ...) is used to reproduce still picture video object (S_VOB # 1, S_VOB # 2, ...). The information is formed one by one corresponding to the one still picture reproduction order information cell. The still image recording aggregate management program (RTRW_STL.VOB) is a program for managing still images in units of recording aggregates, and is composed of a plurality of recording aggregates (S_VOB # 1, S_VOB # 2, S_VOB # 3, ...), The record aggregates are formed one by one in correspondence with the single record aggregate reproduction information (S_VOBI # i; i = 1, 2, 3, ...). The still image recording set includes information on still images Vi having the same properties (i; i = 1, 2, 3, ...) and original audios (Ai;; i = 1, 2, 3, ...) associated with the same. Is recorded, and information is also recorded on the post-recording audio data Ai '; i = 1, 2, 3, ... that is generated when audio data for a previously recorded still image is recorded later.

Next, a description will be given of the generation process of the still image recording assembly, reproduction information and reproduction order information when recording still images in the same figure.

When recording original audio data simultaneously when shooting still images, still and original audio such as "V1, A1", "V2, A2", "V5, A5", "V6, A6", "V9, A9" When data is recorded continuously, and still images are recorded without recording audio data, only still images are recorded, such as V3, V4, and V7. When audio data is recorded afterwards, V2, V1, V6, V3, V8, V5 The late rock audio is recorded at the recording position, such as the late rock audio (A2 ', A1', A6 ', A3', A8 ', A5', A7 ') for V7. In this case, when the property of the still image changes during recording of the still image or when the maximum allowable number of still images is exceeded, a new recording aggregate (S_VOB # i; i = 1, 2, ...), recording aggregate reproduction information (VOBI # i; i = 1, 2, ...) and recording set reproduction order information (Cell # 2, Cell # 3, ...) are generated. In addition, in FIG. 7, the recording set S_VOB # 3, the recording set playing information S_VOBI # 3, and the recording set playing order information Cell # 4 have the previous number of recording sets S_VOB # 3 exceeding the allowable number of still images. It is generated when post-record audio (A3 ', A8', A5 ', A7') occurs for V3, V8, V5, and V7 in one state.

First, the still images V1 and A1 are recorded at the same time as the video part V1 and the audio part A1 at the time of shooting, and the still images as shown in FIG. 3 when the still images V1 and A1 are recorded. In the audio / video file information table S_AVFIT, still image recording aggregate information # 1 (S_VOBI # 1) of the still image audio / video file information S_AVFI # 1 is generated to include still images V1 and A1. The recording information is inserted and recorded as the reproduction information for the recording assembly VOB # 1. Here, in the audio / video map (AV Map; see Fig. 4) of the still image recording aggregate information # 1 (S_VOBI # 1), the still images V1 and A1 are recorded as shown in Fig. 5A. An original audio / video map having a structure is generated and recorded in the map MAP # 1 (see Fig. 4). Here, since there is no post-record audio for the currently recorded still pictures V1 and A1, "0" is recorded in the post-record audio recording collective recognition code AR_VOB_ID and the post-record audio recognition code AR_ID.

Then, when recording still images V2 and A2, original audio / video maps having the structure as shown in Fig. 5A are generated for still images V2 and A2 as described above, and map information (MAP # 2; 4).

Subsequently, at the time of recording the still image V3 and the still image V4 composed of only video parts, the still image V3 and the still image V4 respectively correspond to the recorded still image V3 and have a structure as shown in FIG. 5B. An original audio / video map is generated and recorded in the map (MAP # 3; see FIG. 4) and map information (MAP # 4; see FIG. 4), respectively. Here, since there is no post-recording audio for the sequentially recorded still images V3 and V4, "0" is recorded in the post-recording audio recording collective identification code AR_VOB_ID and the post-recording audio identification code AR_ID.

The grouping of the current recording set S_VOB # 1 ends when the property of the still images V5 and A5 recorded thereafter is changed or when the number of allowable still images of the current still image recording set S_VOB # 1 is exceeded. After the information on the recording set playback information (S_VOBI # 1) and the playback order information (Cell # 2) is completed, the new still image recording set (S_VOB # 2), the recording set playback information (S_VOBI # 2), and the playback order are completed. Generate information (Cell # 3).

Subsequently, the recorded still images V5, A5; V6, A6 are similarly generated with an original audio / video map having a structure as shown in FIG. 5A, so that the map (MAP # 5; see FIG. 4) and the map (MAP # 6) are generated. 4, respectively.

Thereafter, when the user reviews the audio recording A2 'for the still images V2 and A2, the recording collective reproduction information for the recording assembly S_VOB # 1 to which the still images V2 and A2 belong is recorded. In the original audio / video map as shown in FIG. 5A recorded on the map MAP # 2 of S_VOBI # 1, the post-recording audio record collective identification code AR_VOB_ID is assigned to the corresponding still picture V2, A2. A recognition code of the recording assembly S_VOB # 2 in which the post-record audio data A2 'is grouped is recorded, and the recognition code of the post-record audio A2' is recorded in the post-record audio recognition code AR_ID. At the same time, a reviewed rock audio map having a structure as shown in FIG. 6 is generated for the recorded reviewed audio A2 'and recorded in the map MAP (see FIG. 4), respectively.

Thereafter, the still image and the follow-up audio data (V7, V8, A1 ', "V9, A9", A6', A3 ', A8', A5 ', A7', ...) in the same manner as above. This is recorded.

In the state where the still image and the post-record audio are recorded as described above, when the user requests the deletion of the recording set S_VOB # 2 including the post-recording audio A2 ', the still image A2' is requested. In addition to deleting the recording assembly S_VOB # 2 on the recording medium, the reproduction information VOBI # 2 and the reproduction order information Cell # 3 for the recording assembly S_VOB # 2 are deleted. In addition, as a post-recording audio for still images recorded in the deleted recording set S_VOB # 2, the post-recording audio A8 ', A5', and A7 'are grouped and recorded in another recording set and deleted. The recording set reproduction information (S_VOBI # 3) is updated. At the same time, since the still image V2, A2; V1, A1 corresponding to the post-record audio A2 ', A1' included in the deleted record set S_VOB # 2 is missing the post-record audio, the corresponding original In the audio video map (see Fig. 5A), the post-record audio recording collective identification code AR_VOB_ID and the post-record audio identification code AR_ID are updated to " 0 ".

8 shows a configuration of a recording / player of a recording medium for recording a signal on an optical disc recording medium and reproducing the recording signal, wherein the recording / reproducing device of FIG. 8 is a rewritable recording according to the present invention. The method of generating and updating audio / video map information of a medium can be applied.

First, referring to the configuration of FIG. 8, the optical pickup 10 records a signal on the optical recording medium OD and detects the signal therefrom; An analog signal processor 20 for transforming reproduction high frequency signals into digital data to convert the data to be recorded into analog data; A digital signal processor (30) for outputting a control signal to the optical pickup (10) according to the decomposition and synthesis of digital data, ECC block coding and decoding, and the decoding result of the data; An A / V processor 40 for decoding and outputting the input audio / video data (hereinafter referred to as 'A / V data') and encoding the input audio / video signal into A / V data; A controller 50 for controlling the component according to navigation data and a user request for reproducing a signal; And a plurality of memories M1, M2, and M3 for temporarily storing data generated in each signal processing process.

The memory M1 includes an FMP area in which a file management program is stored, and an FMT area in which a file management table FMT is stored, and the still image audio / video map and a post-record audio are included in the file management table FMT. A recording aggregate reproduction information table including a map and a recording aggregate reproduction sequence information table are included.

In the apparatus of FIG. 8, when a still image is recorded on the recording medium, the controller 50 controls to record the still image on the recording medium OD by using a file management program stored in the memory M1. In addition, the still image corresponding to the recorded still image in the recording set reproduction information table stored in the FMT area of the memory M1 depends on whether the recorded still image consists only of a video part or a video part and an audio part. The audio / video map is controlled to generate and record different original audio / video map information of still images as shown in FIG. 5A or 5B. In this case, the recorded audio recording set identification code AR_VOB_ID and the later recording audio identification code AR_ID are set to " 0 " in the recorded original audio / video map information.

In addition, the controller 50 controls to record the audio recording on the recording medium OD by using the file management program stored in the memory M1 when recording the audio recording on the previously recorded still image. In addition, the still picture audio / video map corresponding to the recorded after-record audio in the recording aggregate reproduction information table stored in the FMT area of the memory M1, as shown in FIG. Control to generate and record information. At the same time, the controller 50 accesses a still picture audio / video map of a previously recorded still picture linked to the recorded late-record audio from a record collective playback information table stored in the FMT region of the memory M1. In the AR-VOB_ID field, the identification code of the recording set in which the recorded recording audio is grouped is recorded, and in the AR-ID field, the recorded audio recording code is recorded in the AR_VOB_ID field. To control.

In addition, when the controller 50 deletes the still image recording collection S_VOB grouped including the still image and the audio recording audio, the control unit 50 uses a file management program stored in the memory M1 to record the recording medium OD. In addition to controlling deletion of the still-recorded recording image S_VOB, the recorded-recorded reproduction information table and the recorded-set reproduction order information table stored in the FMT area of the memory M1 are stored in the deleted-requested still image recording aggregate. Control to delete the corresponding recording set reproduction information S_VOBI and recording set reproduction order information Cell. At the same time, the control unit 50, if there is a post-record audio interlocked with the still image contained in the previous still image recording set from the reviewed audio recording included in the still image recording set requested, The original audio / video map information for the interlocked still image is searched in the record set playback information table stored in the FMT area of the memory M1, and the record record audio recognition code (AR_VOB_ID) field and record record audio recognition code (AR_ID) are searched. Control to update the fields to " 0 ", respectively.

Next, an embodiment of an audio / video map information generation recording method of a rewritable recording medium according to the present invention will be described in detail with reference to the flowchart of FIG.

First, when the recording medium is inserted into and mounted in the player, the controller 50 reads out the navigation data file table configured as shown in FIG. 1 recorded on the recording medium, and records it in the FMT area of the memory M1. When the still image recording mode is set by the user, this is checked to perform recording control of the still image (step S11). Thereafter, the controller 50 checks whether a still image is input (step S12). When the still image is input, the controller 50 stores the input still image on the recording medium OD using a file management program stored in the memory M1. Control to record (step S15).

Subsequently, the controller 50 checks whether the recorded still image is composed of only video parts (step S17), and if the image is composed only of video parts, the still image recording aggregate reproduction information S_VOBI stored in the FMT area of the memory M1. In step S19, original audio / video map information of the first type as shown in Fig. 5A is generated and recorded on the original audio / video map of the recorded still image in step S19. On the other hand, if it is confirmed in step S17 that the recorded still picture is made up of a video part and an audio part, the still picture recording aggregate reproduction information S_VOBI stored in the FMT area of the memory M1 is used for the recorded still picture. The original audio / video map information of the second type as shown in Fig. 5B is generated and recorded on the original audio / video map (step S21). The post-record audio recording collective recognition code AR_VOB_ID and the post-record audio recognition code AR_ID of the original audio / video map information generated in the above step S19 and step S21 are set to " 0 ".

Next, the controller 50 checks whether the still image recording mode is terminated by the user (step S23), and if the still image recording mode is not terminated, returns to step S13 described above to perform the control operation of step S13 or less. On the other hand, when the still image recording mode ends, the navigation data table stored in the memory M1 is read, recorded on the recording medium, and the control operation ends (step S25).

On the other hand, if it is confirmed in step S13 that no still image is input, the controller 50 checks whether audio recording audio data is input (step S27). As a result of the checking in step S27, if no post-record audio data is input, the process returns to the above-mentioned step S13 to perform the control operation of step S13 or less, while if it is confirmed that the post-record audio data is input, the memory M1 is inputted to the memory M1. The stored file management program is controlled to record the inputted audio recording on the recording medium OD (step S29).

Thereafter, the controller 50 controls the post-record audio map as shown in FIG. 6 in the map information area with respect to the recorded post-record audio in the still image recording aggregate reproduction information S_VOBI stored in the FMT area of the memory M1. The information is generated and recorded (step S31).

Subsequently, the controller 50 stores the original audio / video map information of the still image linked with the recorded post-record audio in the map information region of the still image recording aggregate playback information S_VOBI stored in the FMT region of the memory M1. In the AR_VOB_ID field, the identification code of the recording set in which the recorded recording audio is grouped is recorded in the AR_VOB_ID field, and the recorded audio recording recognition is recorded in the AR_ID field. By recording the code, it is controlled to update the original audio / video map information (step S33). Thereafter, the controller 50 proceeds to step S23 to perform the control operation of step S23 or below.

Next, an embodiment of an audio / video map information update recording method of a rewritable recording medium according to the present invention will be described in detail with reference to the flowchart of FIG.

First, when the recording medium is inserted into and mounted in the player, the controller 50 reads out the navigation data file table configured as shown in FIG. 1 recorded on the recording medium, and records it in the FMT area of the memory M1. When the deletion mode of the still image recording assembly is set by the user, the controller determines the deletion mode and performs the deletion control of the still image recording assembly (step S41). Thereafter, the controller 50 checks whether there is a deletion request for the predetermined still image recording assembly S_VOB recorded on the recording medium (step S43), and transfers the audio of the requested still image recording assembly during the review recording audio. It is checked whether or not there is a recording sound interlocking with the still image of the recording assembly (step S45). If it is confirmed in step S49 that the controller 50 exists, the controller 50 searches for the original audio / video map information on the still image in the still image recording set reproduction information table recorded in the FMT area of the memory M1, The recording audio recording set recognition code AR_VOB_ID and the post-record audio recognition code AR_ID are reset to " 0 " to control to update the original audio / video map information (step S47).

Thereafter, the control unit 50 performs a control operation of searching for and deleting post-recording audio linked to the still image on the recording medium by using original audio / video map information on the still image of the deleted still image recording assembly. (Step S49).

Subsequently, by using the file management program stored in the memory M1, the corresponding still image recording assembly reproduction information S_VOBI recorded in the FMT area of the memory M1 is read out, and the read still image recording assembly reproduction information S_VOBI is read. Search for and delete the corresponding still image recording aggregate S_VOB recorded on the recording medium using the " At the same time, the controller 50 controls to delete the requested recording set reproduction information from the still image recording set reproduction information table recorded in the FMT area of the memory M1, and further, in the recording set reproduction order information table. The deletion control unit controls to delete the recorded aggregate reproduction order information (step S51).

Next, the control unit 50 checks whether the erasing mode for the still image recording assembly is terminated (step S53), and if not, returns to step S43 to perform the control operation of step S43 or less, and when it is finished, The navigation data table stored in the memory M1 is read out, recorded on the recording medium, and the control operation is terminated (step S55).

According to the audio / video map information generation and update recording method of the rewritable recording medium according to the present invention as described above, the original audio / video map for the still image is divided into two types, and each type of map has a post A field for recording audio is formed. Therefore, every time the still image is captured (captured) in the memory of the recording medium playback / player, original audio / video map information of the still image is generated and sequentially recorded, and the original for the recorded still image is recorded. In the audio / video map information, an information field for an audio recording data is reserved. Accordingly, when post-record audio data is recorded on the recorded still image, an information field for the post-record audio data may be generated in the original audio / video map information and inserted and recorded in the secured field. It is easy to control, and there is an advantage that a write delay of the memory does not occur.

Claims (5)

In the management data generation recording method of a rewritable recording medium, A first step of checking whether an input recorded still picture is recorded together with an audio signal; And And a second step of generating and recording audio / video map information of the recording still image in two types according to the verification result. The method of claim 1, In the audio / video map information generated in the second step, an area for recording information on a post-recorded audio signal that can be reproduced in association with the recorded still image is secured. How to record / record video map information. The method of claim 2, A third step of recording a post-recorded audio signal which can be reproduced in association with the recorded still image; And And a fourth step of recording information on the recorded post-recorded audio signal in the secured area of the audio / video map information for the recorded still image. How to record / record video map information. In the management data update recording method of a rewritable recording medium, Deleting a requested review audio signal; And The post-recording audio signal information recorded in the post-recording audio signal information recording area fixedly located in the audio / video map information for the still image reproduced in association with the deleted post-recording audio signal is removed, and the audio / video is removed. And updating and recording the map information. The audio / video map information update recording method of a rewritable recording medium. The method of claim 4, wherein And maintaining the type of the audio / video map information updated and recorded in the second step.