Source: http://www.allindianpatents.com/patents/202575-a-recording-medium-for-storing-information-for-still-picture
Timestamp: 2018-06-21 16:30:43
Document Index: 744239637

Matched Legal Cases: ['art.\n32', 'art.\n33', 'art.\n34', 'art.\n36', 'art.\n45', 'art.\n48']

Indian Patents. 202575:A RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE
A RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE
A recordable and/or rewriteable recording medium for storing still picture data, and recording and/or reproducing method and apparatus therefor are provided. The recording medium stores still picture group information for grouping a plurality of still pictures in order to manage the still picture at a group level, and stores audio group information for grouping additional audio data added to the still picture data after the still picture data are recorded. Therefore, large-capacity still picture data and additional audio data added thereto can be recorded using the minimum management information. Also, during reproduction, data can be displayed and edited in units of the respective still pictures. Also, it is possible to cope with after-recording of the audio data.
The present invention relates to recording and/or reproducing audio and/or video data using a rewriteabie recording medium, and more particularly, to a recording medium for storing for effectively processing a still picture and additional audio data added thereto, and recording and/or reproducing method and apparatus therefor,
FIG. 1 shows a connection structure for various kinds of information in a moving picture and moving picture data, in recording/reproducing audio and/or video data on a recordable and/or rewriteabie recording medium, specifically, a digital versatile disk (DVD), and more precisely, it illustrates the relationship between program chain (PGC) information 11 for treating data logically, moving picture information 12 consisting of video object (VOB) information, and a moving picture data file 13 in which actually compressed audio/video (AN) data are recorded in VOB units.
Also, since data is actually sub-divided into video object units (VOBUs) and recorded in a moving picture data file, the VOB information consists of various kinds of information relating to the VOBU data, that is, VOBU #1, VOBU #2,.... and the
VOS data in the moving picture data file is accessed by the VOB information. Here, the VOB data is used as a random access unit of a disk recording/reproducing apparatus. The VOBU is based on a single GOP (Group of Pictures) in the case of an MPEG (Moving Picture Experts Group) video, and audio data corresponding to video data is collected, that is, A/V data Is multiplexed into sectors, to constitute a VOBU.
The data format shown in FIG, 1 is concerned with the moving picture, in which the unit of actual data, the VOB, comprises moving picture data for a fixed period of time. Synchronization or encoding of A/V signals is performed in units of VOBs. However, in the case of a still picture, each VOB constitutes a still picture. When a VOB is designated in a ceil structure, a cell is necessary for each still picture. Thus, as more the stil! pictures are recorded, more information is added.
US 5,555,098 discloses a technique for storing respectively corresponding digitized images and digitized audio messages, for controlling concurrent reproduction of digitized images on an image reproduction device and audio information on a sound reproduction device. The image and audio data files, which are stored in the same database in the manner of a library in a digital storage medium, may be associated with each other by a mapping arrangement. Once such a library is programmed onto the write once digital storage medium, it is not possible to change the contents of the digital storage medium. The image and audio data files are associated with each other in a presentation sequence file located either on the disc or on the EEPROM memory module.
To solve the above problems, it is a first object of the present invention to provide a recording medium for effectively storing information for a large-capacity
still picture by grouping the large-capacity still picture and storing the information for the still picture groups.
it is a third object of the present invention to provide a recording medium for recording additional audio data added to a still picture data
and storing additional audio group information for grouping the
recorded additional audio data to manage the same.
It is a fourth object of the present invention to provide a method for recording still picture group information for grouping a large capacity still picture to manage the same, and reproduction-related cell
information, and reproducing a still picture in accordance with the recorded information.
!t is a fifth object of the present invention to provide a method for recording still picture group information consisting of video information for a still picture and video and audio information for a still picture having original audio data added thereto, and reproduction-related cell information, and reproducing a still picture or a still picture having original audio data added thereto.
It is a sixth object of the present invention to provide a method for recording still picture group information, additional audio group information for after-recording and reproduction-related cell information, and reproducing a still picture, a stilt picture having additional audio data added thereto, or a still picture having additional audio data added thereto in accordance with the recorded information.
It is a seventh object of the present invention to provide an apparatus for recording still picture group information for grouping a large-capacity still picture and managing the same, additional audio
group information for after-recording separately from the still picture group information, and reproduction-related cell information, and reproducing a still picture, a still picture having original audio data added thereto, or a still picture having additional audio data thereto in accordance with the recorded information.
To achieve these objects, there is provided a recording medium comprising : a first region having a plurality of still pictures ; a second region having a plurality of additional audio data corresponding to the still pictures ; and a third region having information indicating a connectivity between the still pictures in the first region and the additional audio data in the second region.
The present invention also provides a recordable and/or rewriteable recording medium, comprising : a first region having a plurality of still pictures ; a second region having a plurality of additional audio data added to at least some of the still pictures and stored in a separate area from the still pictures ; a third region having still picture group information which separates the still pictures into within a first predetermined maximum number of groups so as to manage the still pictures at a group level, wherein the still picture group information comprises information indicative of the additional audio data added to the corresponding still pictures ; and additional audio group information which separates the additional audio data into within a second predetermined maximum number of groups so as to manage the additional audio data at a group level.
The present invention also provides a recording medium comprising : a first region storing still pictures in groups, wherein the still pictures of each same group have a same attribute ; a second region storing additional audio data corresponding to the still
pictures in groups which correspond to the still picture groups ; and a third region storing general information indicating a relationship between the still pictures and the additional audio data, and indicating start positions on the recording medium for each of the still picture groups and additional audio groups, and sizes of each of the still pictures in each still picture group and each of the additional
audio data in each additional audio group.
The present invention also provides a recording medium comprising : a first region storing still pictures in groups, wherein the still pictures of each same group have a same attribute ; a second region storing additional audio data corresponding to the still pictures in groups corresponding to the still picture groups ; and a third region storing general information indicating start positions of each of the still picture groups and the additional audio groups and only sizes without starting positions of each still picture other than a first still picture in each stiff picture group and only sizes without starting positions of each additional audio data other than a first additional audio data in each additional audio group.
The present invention further provides a recording medium, comprising : a plurality of still pictures ; a plurality of additional audio data corresponding to at least some of the still pictures and recorded in a different region from the plurality of still pictures; and connective information indicating connectivity between the still pictures and the corresponding additional audio data.
The present invention further provides a recording medium comprising : a plurality of still pictures ; still picture group information to divide the still pictures into still picture groups and
comprising start positions of each of the still picture groups and sizes of each of the still pictures in the corresponding still picture groups ; a plurality of additional audio data corresponding to a least
some of the still pictures ; additional audio group information to
divide the additional audio data into additional audio groups and
comprising start positions of each of the additional audio groups and
sizes of each of the additional audio data in the corresponding
additional audio groups.
According to the present invention, there provided a method for recording and/or reproducing audio and/or video data on a recordable and/or rewriteable
recording medium including (a) recording a plurality of still pictures, (b) separating the plurality of still pictures into within a predetermined maximum number of groups and recording still picture group information and playback information related to reproduction, (c) recording additional audio data added to a desired still picture in a separate area, after the plurality of still pictures are recorded, and (d) recording additional audio group information for separating the additional audio data into within a predetermined maximum number of groups in order to manage the additional audio data at a group level, and information indicative of the additional audio data corresponding to the desired still picture, the information included in the still picture group information.
The method according to the invention may further include the steps of (e) reading the still picture group information to be reproduced in accordance with the playback information, (f) calculating the position of a desired still picture in accordance with the read still picture group information and reproducing the still picture data located at the calculated position, and (g) if the information indicative of an additional audio group is present in the read still picture group information, calculating the position of the additional audio data for the corresponding still picture in accordance with the additional audio group information and reproducing the additional audio data.
In a reproduction method of a recording medium comprising a first region having data for a plurality of still pictures, a second region having data for a plurality of additional audio data added to the still pictures, and a third region having information indicating the connectivity between the still picture data in the first region and the additional audio data in the second region, the reproduction method includes the step of reproducing the still picture data in the first region and the additional audio data added to the still picture data, based on the connectivity information in the third region.
The apparatus according to the invention includes a recording processor for signal-processing a plurality of still picture data to be recorded on a first region on the recording medium and signal-processing a plurality of additional audio data added to the still picture data to be recorded on a second region, and a controller for generating connectivity information indicative of the connectivity between the still
picture data in the first region and the additional audio data in the second region, and playback information related to the reproduction order and controlling the same to be recorded on a third region.
FIG. 6 shows the relationship between additional audio data added to still picture data and additional audio group information according to the present information;
FIG. 7 shows the relationship between cell information and stiff picture group information;
FIG. 15 is a table showing an example of the detailed contents of general information for stilt picture & additional audio data shown in FIG. 14;
FIG. 18 illustrates the structure of a map table for still picture & additional audio data shown in FIG. 14;
FIG. 17 is a table showing an example of the detailed contents of the map table for still picture & additional audio data shown in FIG. 16;
FIG. 21 is a flow chart showing a method for reproducing a still picture according to an embodiment of the present invention; and
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of recording media for storing the information for a stiil picture, and recording and/or reproducing method and apparatus therefor, will be described.
Here, PGC general information contains information such as the number of programs in a PGC. Program general information contains information such as the number of cells in a program. The cell information designates a VOB in the case of a moving picture, as shown in FIG. 1, and designates a still picture VOB group (to be abbreviated as "still picture group" for brevity) instead of a VOB, in the case of a still picture, as shown in FIG. 3. Since the moving picture information has already been described with reference to FIG. 1, a description thereof will be omitted herein and still picture information according to the present invention will now be described. Still picture general information contains information relating to the number of kinds of still picture group information, and additional audio general information for the still picture contains information relating to the number of kinds of additional audio group information.
thereof in the still picture data file must be indicated. In the case when the still pictures are not separated into a plurality of groups, the start positions of the respective still pictures must be indicated. However, in the case when the still pictures are grouped, the start position at which the pertinent still picture group starts to be recorded in a file is stored in the still picture group general information and then only the sizes of the respective still pictures are recorded as the information for the respective still pictures. Since the amount of information indicative of the size of stilt picture data, i.e., the number of bytes, is generally less than that indicative of the position in a file, the overall amount of information can be reduced.
A user may add separate additional audio data to a desired still picture after recording the still picture and original audio data on a still picture file 23. At this time, only the additional audio data are collected and recorded in a separate area in the additional audio data file 24 or the still picture file 23, with the original audio data being retained. The additional audio data are also managed by grouping in the same manner as in the still picture data and the concept thereof is the same as that of the still picture data. In other words, a plurality of additional audio data having the same attributes, e.g., audio coding attributes, are grouped into an additional audio group (to be abbreviated as "GAOB") and then additional audio group general information is recorded as common information. For the respective additional audio data AOBs, only the size information is recorded. The additional audio group general information contains the start positions of audio data in the respective additional audio groups (GAOBs). The connection information for the additional audio data added to the specific still picture, which is indicated by thick arrows in FIG. 3, is present in the still picture group information GVOB #1, GVOB #2,... In other words, additional audio group identification information for designating additional audio data existing in the still picture group information and additional audio identification information in the pertinent additional audio group are contained in the still picture group information.
In order to locate a recording position of a specific still picture in the still ¦ picture group, the start position of the still picture group data contained in the still picture group general information is added to the size of the data preceding the still
picture to be located. Likewise, in order to search the recording position of specific additional audio data, the start position of the additional audio group data contained in the additional audio group genera! information is added to the size of the data preceding the additional audio data to be located.
Thus, as shown in FIG. 3, there is the still picture file 23 to which the original audio data may be added, the additional audio data file 24 added to the still picture and the information file containing the PGC information 21 and the still picture information 22 having the still picture group information (GVOB) and the additional audio group information (GAOB). However, the additional audio data may be recorded in a separate area of the still picture file 23, rather than in the additional audio data file 24. The still picture file 23 can be designated by a first region, the additional audio data fiie 24 can be designated by a second region, and the information file containing the PGC information 21 and the still picture information 22 can be designated by a third region which is a logic region.
F!G. 4 is a block diagram of a recording/reproducing apparatus for implementing the present invention. The function of an apparatus for recording/reproducing A/V (audio/video) data using a recordable and rewriteable disk is largely divided into recording and reproduction.
During recording, an AV codec 110 compression-codes an externally applied A/V signal by a predetermined compression scheme and supplies size information for compressed data. A digital signal processor (DSP) 120 receives A/V data supplied from the AV codec 110, adds additional data for ECC (error correction code) processing thereto and performs modulation using a predetermined modulation scheme. A radio frequency amplifier (RF AMP) 130 converts electrical data supplied from the DSP 120 into an RF signal A pickup 140 drives a disk and
records the RF signal supplied from the RF AMP 130, incorporating an actuator for focusing and tracking. A servo 150 receives information necessary for servo control from a system controller 160 and stably performs a servo function. The system controller 160 controls the overall system through interfacing with a user to thus control the still picture to be recorded on the disk and record separate information for the recorded still picture. Still picture data are managed at a group level by constructing the still picture group information of the information for the respective still pictures, including size information of still picture data, size information of original audio data, playback time information of original audio data and the like, and the position information of the respective still pictures, in the recording order of recorded still pictures and audio data. When additional audio data is added to a stil) picture, the added additional audio data is recorded in a different file from or in the same file as that for the still picture but in a different area from that of the still picture. Additional audio data are managed at a group level by constructing additional audio group information of the information for recorded additional audio data, including size information of additional audio data, playback time information of additional audio data and the like, and position information of the respective additional audio groups. The information for the respective still pictures includes information indicative of the added additional audio data.
Cell information concerning the reproduction order is recorded as well as the above-described information. The cell information contains information indicative of the recorded stiil picture group so that the recorded stiil picture and audio data can be reproduced.
During playback, the pickup 140 picks up the optical signal from the disk having data stored therein and the data is extracted from the optical signal. The RF AMP 130 converts the optical signal into an RF signal, and extracts a servo signal for performing a servo function, and modulated data. The DSP 120 demodulates modulated data supplied from the RF AMP 130 corresponding to the modulation scheme used during modulation, performs an ECC process to correct errors and eliminates added data, The servo unit 150 receives information necessary for servo control from the RF AMP 130 and the system controller 160 and stably performs a servo function. The AV codec 110 decodes the compressed AN data supplied from
the DSP 120 to output an A/V signal. The system controller 160 controls the overall system for reproducing the user's desired data (still picture only, still picture + original audio data or still picture + additional audio data) using the cell information and still picture group information stored on the disk while performing user interfacing such as processing of the user's key inputs.
In other words, in order to reproduce a specific still picture and audio data, the still picture group information having the still picture to be reproduced is obtained from the cell information, information such as the size of the still picture data and the information for the data size and playback time of original audio data, if any, is obtained from the still picture group information, thereby reproducing only desired data. Also, if additional audio data is added to the still picture, desired additional audio data is reproduced using information for the data size or playback time of the additional audio data from the additional audio group information pointed to by the still picture group information,
Also if virtually deleted still picture information is read from the still picture group information, the corresponding still picture and original audio data are not reproduced so that although the data actually exists, it seems to the user that it does not exist. Likewise, if the added additional audio data is virtually deleted, it is not reproduced.
FIG. 5 shows the relationship between still picture data and still picture group information, in which the information for a plurality of still pictures (e.g., 64. maximally) having the same attributes is recorded in the respective stiS! picture group (GVOB) information 201. The number of the still pictures forming each stili picture group is determined such that it is within the limit of the maximum number of still pictures. Each stili picture group information 202 includes stil! picture group general information an6 information for the respective still pictures and is information for still picture data 203 composed of video parts and video or audio
FIG. 6 shows the relationship between additional audio data added to a still picture and additional audio group information according to the present information, in which additional audio group (GAOB) information 211 includes information for additional audio data recorded in units of a plurality of still picture groups. Additional audio group information 212 has additional audio group general information containing the start address of the corresponding additional audio group and audio maps (AMAPs) following the sequence of additional audio data. The information for additional audio data 213 composed of additional audio parts of a still picture is recorded in each additional audio map, inclusive of size information of additional audio data. Also, the additional audio group information 212 includes virtual deletion information for virtually deleting the respective second audio parts.
FIG. 7 shows the relationship between cell information (which can also be referred to as playback information ) and still picture group information, in which a cell is a logical unit in relation to indication of a reproduction order. The cell information includes stiii picture group identification information (GVOB_ID), still picture reproduction start identification information (START VOBJD) of the corresponding still picture group and still picture reproduction ending identification information (END VOB_ID). The cell information may correspond to all the still picture groups or may correspond to some of still picture groups which are intended to be reproduced.
The additional audio data is stored in a separate area from the still, picture data, that is, in a different file or in a different area of the same file from or as that of the still picture data.
Alternatively, in the case when the additional audio data and the still picture data are stored in one and the same file, GVOB #1, #2 and #3 and GAOB #1, #2 and #3 shown in FIGS. 5 and 6 constitute a file. In constituting the file in such a manner, the respective GVOBs and GAOBs may be mixed in the recording order, for example, in the order of GVOB #1, GVOB #2, GAOB #1, GVOB #3, GAOB #2 and GAOB #3. Otherwise, the GVOBs and GAOBs are coupled and arranged in each batch to constitute a file.
FIG. 8 shows the relationship among cell information, still picture group information and additional audio group information, for designating desired additional audio data in the additional audio group recorded in a separate area as well as original audio data as the audio data added to a still picture. The cell information includes still picture group identification information (GVOB_ID), still picture reproduction start identification information (START VOBJD) in the corresponding still picture group and still picture reproduction ending identification information (END VOBJD). Video part information in the information for still picture group GVOB #1 may have information for designating additional audio data added to a still picture, that is, additional audio group identification information and additional audio identification information in the corresponding additional audio group. For example, additional audio group identification information GAOB #j and identification information #2 indicating that the additional audio data is the second audio map in the GAOB #j exist in the video part information for a still picture #2 of the still picture group GVOB #i.
FIG. 9 iilustrates the structure of still picture group information according to the present invention, which includes still picture group general information and a still picture map table, and may further include attribute information for a still picture such as picture sizes or video encoding modes.
FIG. 10 is a tabie showing an example of the detailed contents of still picture group general information shown in FIG. 9, which includes GVOBJD representing information for identifying a still picture group in a still picture file, GV0B_S_ADR representing the start address of first still picture data in the corresponding still picture group in the still picture file, GVOB_Ns representing the number of still pictures in the still picture group, GVOB_Ds representing the number of virtually deleted still pictures in the corresponding VOB group, and so on. If GVOB_Ds and GVOB_Ns are equal to each other, the VOB group can be deleted from a file. If GV0B_Ds is not stored expressly, it is checked whether all still pictures in the corresponding still picture group are in a virtually deleted state to then be actually deletable, Also, the identification information GVOB_ID can be expressly recorded as a unique one for each still picture group in a still picture file or can be suggestively indicated in the order of still picture groups, that is, #1, #2,...
FIG. 11 illustrates the structure of the still picture map table shown in FIG, 15. There are two types of maps; one is video maps VMAPs for video parts and the other is audio maps AMAPs for original audio parts added to a still picture. The order of maps is the same as that of data of recorded bitstreams in a still picture file as shown in FIG. 5. Thus, in the case when a still picture has only video parts, there are only video maps. In the case when a still picture has original audio data in addition to the video parts, both video maps and audio maps are recorded and are practically considered as one map using the same identification information,
FiG. 12 is a tabie showing an example of the detailed contents of a video map in the map table shown in FIG. 11, containing MAP_TY indicating the type of a corresponding map and represented by a binary "0" in the case of a video map for video parts, VOBJD indicating identification information for the video parts and ranging from 1 to 64 in preferred embodiments. Also, VOB_ID can be expressly indicated or suggestively indicated in the recording order, that is, #1, #2, #3,...
Aiso, the video map contains V_DELETE which is a binary value indicating deletion or non-deletion of a VOB, that is, indicating that a VOB is not deleted if the value thereof is "0" and that the VOB is virtually deleted if the value thereof is "1", V_PART_SZ indicating the size of a video part, GAOBJD which is identification information of an additional audio group, the value of which exists if a still picture has additional audio data, and the value of which is "0" if a still picture does not have additional audio data, and AOB_ID which is identification information of additional audio data in an additional audio group if a still picture has additional audio data, and the value of which is "0" if a still picture does not have additional audio data.
Here, VOB_ID and V_PART_SZ can be referred to as still picture position information, and GAOBJD and AOBJD can be referred to as additional audio connectivity information.
FIG. 13 is a table showing an example of the detailed contents of an original audio map, containing MAP_TY indicating the type of a corresponding map and represented by a binary value "1" in the case of an audio map for audio parts, A_PBTM indicating the playback time of an audio part and A_PART_SZ indicating the size of an audio part.
FIG. 14 iiiustrates the structure of additional audio group information for a still picture according to the present invention, containing additional audio general information and an additional audio map table for the still picture. Also, additional audio attribute information for the still picture may be further included.
FIG. 15 is a table showing an example of the detailed contents of additional audio general information for a still picture, shown in FIG. 14, containing GAOBJD indicating identification information for an additional audio group in an additional audio file, GAOB_S_ADR indicating the start address of the first additional audio data in the corresponding additional audio group in the additional audio file, and GA0B_Ns indicating the number of additional audio parts contained in the additional audio groups. GAOBJD can be expressly indicated or suggestively indicated in the recording order.
FIG. 17 is a table showing an example of the detailed contents of the additional audio map table for the still picture shown in FIG. 16, containing AOBJD indicating identification information for a specific audio part in an additional audio group and ranging from 1 to 64 in preferred embodiments, A_PBTM indicating the playback time of additional audio data and A_PART_SZ indicating the size of additional audio data such as the number of sectors. Here, AOBJD can be expressly indicated or suggestively indicated in the recording order, that is, #1, #2, #3,...
FiGS. 19A and 19B illustrate a flow chart showing a method for recording a still picture according to an embodiment of the present invention, that is, a method for recording a still picture and original audio data. First, it is determined whether a still picture or both a still picture and original audio data is recorded (step S101). Still picture group information is generated, identification for a still picture group is allocated, the number of still pictures in the still picture group is set to "0" and the start address of the stiff picture group in a still picture file is recorded (step S102). It is then determined whether a recording start signal of a still picture is input by a user or not (step S103). If the recording start signal is input, the still picture is recorded in the still picture file, identification information for the still picture is allocated to the still picture group information, the number of still pictures in the still picture group is increased by one and the size information of the still pictures is recorded in the video map (step S104),
It is determined whether or not a mode set by a user is for recording both a still picture and original audio data (step S105). If yes, the audio data for the still picture is recorded following after the corresponding still picture on the still picture file and the audio size information is recorded in an audio map in the stil! picture group information (step S106).
It is then determined whether the recording start signal of additional audio data is input by a user or not (step $202). If the recording start signal is input, a specific still picture to which the user desires to add additional audio data is designated (step S203). The additional audio data is recorded in an additional audio file, identification information for additional audio data in the audio map of the additional audio group information is allocated, the number of additional audio parts in the additional audio group is increased by one, and the size information of the additional audio data in the audio map is recorded (step S204). Although it has been described herein that the additional audio data is recorded in a different file from" that of the still picture, the additional audio data can be recorded in a separate area of the same file as that of the still picture.
Identification information for the still picture group of a predetermined still picture and identification information for the still picture are read and the information for the still picture, that is, identification information for an additional audio group for
FIG. 21 is a flow chart showing a method for reproducinga still picture according to an embodiment of the present invention, that is, a method for reproducing a stilt picture and original audio data added thereto. Referring to FIG. 21, PGC information and cell information are read (step S301). Identification information for a still picture group to be reproduced, playback start identification information and playback ending identification information are read from the ceil information to read the still picture group information pointed to by the cell (step S302). Video map information for the video part corresponding to the playback start identification information in the read still picture group information is obtained to read the size of a video part, or both video map information and audio map information are obtained in the case of a still picture having original audio data to read the size of a video part and the size of an audio part (step S303).
The position of a desired still picture is calculated by the read video part information and video data located at the calculated position is read and decoded to reproduce the still picture (step S304). Here, the position of a desired still picture is obtained by summing the start position of a still picture group and the size of data preceding the desired still picture. While the still picture is reproduced, it is determined whether original audio data is added to the still picture (step S305). If yes, the original audio data is read and decoded to reproduce the original audio data (step S306). Here, the reading position of the original audio data is obtained by summing the calculated position of the still picture and the size of video parts of
the still picture. It is checked whether all still pictures belonging to a cell are reproduced or not using the cell information and then it is determined whether or not there is a still picture to be reproduced next (step S307). If yes, the information for the video part of a still picture to be reproduced next is read (step S303). Otherwise, the procedure is terminated. In the case when there are a plurality of series of cell information, this routine is repeated.
FIGS. 22A and 22B illustrate a flowchart showing a method for reproducing a still picture according to another embodiment of the present invention, that is, a method for reproducing a still picture, a still picture having original audio data, or a still picture having additional audio data. Referring to FIG. 22A, cell information is read from PGC information (step S401) and then still picture group information pointed to by a cell to be reproduced is read (step 402). Information for the start position of a still picture group is read from the read still picture group information and the position of a desired still picture is calculated (step S403). Here, the position of a desired still picture is obtained by summing the start position of a still picture group and the size of data preceding the desired still picture. The video data is read and decoded in accordance with the position information of the desired still picture to reproduce the still picture (step S404).
Further, according to another aspect of the present invention, before reproduction, a reproduction mode is set by interfacing with a user to determine
a first region having a plurality of still pictures
a second region having a plurality of additional audio data
corresponding to the still pictures ; and
a third region having information indicating a connectivity
between the still pictures in the first region and the additional audio data in the second region.
2.	The recording medium as claimed in claim 1, wherein each of
the first, second and third regions exists in separate files.
3.	The recording medium as claimed in claim 1, wherein the first
and third regions exist in a same file as one another.
4.	The recording medium as claimed in claim 1, wherein the
information in the third region comprises still picture group
information for grouping the plurality of still pictures so as to
manage the still pictures at a group level, and additional audio group
information for grouping the plurality of additional audio data so as
to manage the additional audio data at the group level.
5.	The recording medium as claimed in claim 1, wherein the
information in the third region comprises still picture general
information containing information relating to a number of still
picture groups of the still pictures, and additional audio general
information containing information relating to a number of additional
audio groups of the additional audio data.
-22™
6.	The recording medium as claimed in claim 4, wherein the still
picture group information comprises still picture group general
information containing start positions of each still picture group and
information relating to a number of video parts in each still picture
group, and information for the still pictures in each still picture
group, the information containing position information for the still, pictures in each still picture group.
7.	The recording medium as claimed in claim 6, wherein the still
picture group general information comprises identification
information of each stiff picture group.
8.	The recording medium as claimed in claim 6, wherein the
position information for the still pictures comprises size information
of the video parts of the still pictures.
9.	The recording medium as claimed in claim 8, wherein the first
region comprises original audio data related to the still pictures.
10.	The recording medium as claimed in claim 9, wherein the
position information for the still picture data comprises size
information of audio parts for the original audio data of the still
pictures, and playback time information thereof.
11.	The recording medium as claimed in claim 10, wherein the
position information for the still pictures comprises identification
information of the still pictures in each still picture group.
12.	The recording medium as claimed in claim 6, wherein the
information for the still pictures comprises connectivity information
indicative of corresponding additional audio data.
connectivity information comprises identification information of each
additional audio group indicative of the additional audio data and
identification information of the additional audio data in the
corresponding additional audio groups.
14.	The recording medium as claimed in claim 4, wherein the
additional audio group information comprises additional audio group
general information containing the start positions of the additional
audio groups and information relating to a number of kinds of the
additional audio data in the additional audio groups, and information
for the additional audio parts of each additional audio group,
wherein the information contains position information for the
additional audio parts.
15.	The recording medium as claimed in claim 14, wherein the
additional audio group general information comprises identification
information of the additional audio groups, and the information for
the additional audio parts comprises identification information of
audio parts in each additional audio group.
position information for the additional audio parts comprises size
information of the additional audio parts and playback time
17.	The recording medium as claimed in claim 4, wherein the third
region stores playback information related to reproduction of the still
pictures and the additional audio data.
playback information comprises identification information of at least
one of the still picture groups, and information for playback start and
ending positions in the at least one still picture group.
19.	The recording medium as claimed in claim 17, wherein the
playback information is applied to all or some of the still picture
20.	A recordable and/or rewriteable recording medium,
a first region having a plurality of still pictures ;
a second region having a plurality of additional audio data added to at least some of the still pictures and stored in a separate area from the still pictures ;
a third region having still picture group information which separates the still pictures into within a first predetermined maximum number of groups so as to manage the still pictures at a group level, wherein the still picture group information comprises information indicative of the additional audio data added to the corresponding still pictures ; and additional audio group information which separates the additional audio data into within a second predetermined maximum number of groups so as to manage the additional audio data at a group level.
21.	The recording medium as claimed in claim 20 wherein the
information indicative of additional audio data contained in the still
picture group information for the still pictures to which the additional
audio data are added, comprises identification information of the
additional audio groups, and identification information of the
additional audio data in each additional audio group.
22.	The recording medium as claimed in claim 20, wherein the
additional audio data are stored in a file different from that for the
23.	The recording medium as claimed in claim 20, wherein the
additional audio parts are stored in a separate area of a same file as
that for the still pictures.
24.	The recording medium as claimed in claim 20, wherein the
general information containing position information of each
additional audio group and information relating to a number of
additional audio parts in each additional audio group, and additional
audio maps containing size information of the additional audio parts
and playback time information thereof.
25.	The recording medium as claimed in claim 24, wherein the
information of each additional audio group and each of the
additional audio maps comprises identification information of the
28. A recording medium comprising :
a first region storing still pictures in groups, wherein the still
a second region storing additional audio data corresponding to
the still pictures in groups which correspond to the still picture
groups ; and
a third region storing general information indicating relationship between the still pictures and the additional audio data and indicating start positions on the recording medium for each of the still picture groups and additional audio groups, and sizes of each of the still pictures in each still picture group and each of the additional audio data in each additional audio group.
27.	The recording medium as claimed in claim 26, wherein the still
pictures comprise a video part and at least some of the video parts
have an audio part consecutively recorded, the additional audio data
are consecutively recorded and the general information comprising
the start positions for each still picture group and additional audio
group and the sizes of the video part or video parts and audio parts
in each still picture group and the sizes of the additional audio data
in each additional audio group are recorded in a bitstream order in
which the video parts or video parts and audio parts and the
additional audio data are recorded.
28.	The recording medium as claimed in claim 26, wherein the
general information comprises cell information which is playback
information and includes group identification information of at least
one of the still pictures groups which comprise still pictures to be
reproduced, still picture reproduction start identification information
of one of the still pictures at which to begin reproduction and still
picture reproduction ending identification information at which to end
29.	The recording medium as claimed in claim 26, wherein the still
picture groups and the additional audio groups are mixed together in
order of recording on the recording medium.
30.	The recording medium as claimed in claim 26, wherein the
general information comprises first information for identifying the
still picture groups, second information representing start addresses
of a first still picture in each still picture group, and third information
indicating a number of still pictures in each still picture group.
31.	The recording medium as claimed in claim 27, wherein the
general information comprises a video map for each of the video
parts, the video map comprises first information indicating a type of
the video map, second information indicating identification
information for the video part and third information indicating a size
of the video part.
32.	The recording medium as claimed in claim 31, wherein each
video map further comprises fourth information indicating virtual
deletion or non-deletion of the video part.
33.	The recording medium as claimed in claim 32, wherein the
genera! information comprises a video map for each of the video
parts, the audio map comprising first information indicating a type of
the audio map, second information indicating playback time of the
audio part and third information indicating a size of the audio part.
34.	The recording medium as claimed in claim 27, wherein the
general information has an additional audio map table comprising
first information indicating identification information for the
corresponding additional audio data, second information indicating
playback time of the corresponding additional audio data and third
information indicating a size of the corresponding additional audio
35.	The recording medium as claimed in claim 26, wherein each,
still picture comprises a video part and at least some of the video
parts have an audio part, and the general information indicates sizes
of each video part and audio part.
36.	A recording medium comprising :
a third region storing general information indicating start positions of each of the still picture groups and the additional audio groups and only sizes without starting positions of each still picture other than a first still picture in each stili picture group and only sizes without starting positions of each additional audio data other than a first additional audio data in each additional audio group,
37.	A recording medium, comprising :
a plurality of still pictures ;
a plurality of additional audio data corresponding to at least some of the still pictures and recorded in a different region from the
plurality of still pictures ; and
connective information indicating connectivity between the still pictures and the corresponding additional audio data.
38.	The recording medium as claimed in claim 37, comprising :
still picture group information for separating the still pictures
into predetermined groups, wherein the still picture group information comprises a start position of each still picture group and sizes of the respective still pictures within the stili picture group.
39.	The recording medium as claimed in claim 38, wherein the still
picture group information comprises for each still picture group a still
picture group identifier, a start address of one of the still pictures in
the corresponding still picture group, and a number of still pictures
within the corresponding still picture group.
40.	The recording medium as claimed in claim 39, wherein the still
picture group information comprises video map tables for each of the
still pictures, and each video map table comprises a type of a video
map for a video part, a video part identifier, a size of the video part,
an information identifier of an additional audio group if one exists,
and an identifier of additional audio data in the additional audio
group if the corresponding still picture has additional audio data
41.	The recording medium as claimed in claim 39, wherein each
parts have an original audio part recorded consecutively after the
corresponding video part, and the still picture group information
comprises for each original audio part, a type of an audio map for an
audio part, a playback time of the audio part, and a size of the audio
42.	The recording medium as claimed in claim 38, comprising :
additional audio group information for separating the additional
audio data into predetermined groups, wherein the additional audio
group information comprises a start position of each additional a audio group and sizes of the respective additional audio data within the additional audio group ; wherein the connective information comprises identification information for the additional audio groups into which the additional audio data are grouped and identification information for the additional audio data in the corresponding additional audio groups.
43.	The recording medium as claimed in claim 42, wherein the
general information containing the start position of the additional
audio groups into which the additional audio parts are grouped and
information relating to a number of the additional audio parts in each
additional audio group, and information for additional audio parts,
the information for the additional audio parts containing position
information for the additional audio parts in each additional audio
44.	The recording medium as claimed in claim 43, wherein the
additional audio group information for each additional audio group
comprises a type of an audio map for a corresponding one of the
additional audio parts, a playback time of the additional audio part,
and a size of the additional audio part.
45. The recording medium as claimed in claim 37, wherein each
corresponding video part.
48. A recording medium comprising :
still picture group information to divide the still pictures into still picture groups and comprising start positions of each of the still picture groups and sizes of each of the still pictures in the corresponding still picture groups ;
a plurality of additional audio data corresponding to at least some of the still pictures ;
additional audio group information to divide the additional audio data into additional audio groups and comprising start positions of each of the additional audio groups and sizes of each of the additional audio data in the corresponding additional audio groups.
47.	The recording medium as claimed in claim 46, wherein each
48.	The recording medium as claimed in claim 46, wherein the still
picture group information comprises connective information
indicative of connectivity between the still pictures and the
corresponding additional audio parts.
49.	A recording medium substantially as herein described,
particularly with reference to and as illustrated in the accompanying
50.	A recordable and/or rewriteable recording medium
51.	An electronic apparatus incorporating the recording medium as
claimed in any of claims 1 to 48.
00577-cal-1999-abstract.pdf
00577-cal-1999-claims.pdf
00577-cal-1999-correspondence.pdf
00577-cal-1999-description(complete).pdf
00577-cal-1999-drawings.pdf
00577-cal-1999-form-1.pdf
00577-cal-1999-form-13.pdf
00577-cal-1999-form-18.pdf
00577-cal-1999-form-2.pdf
00577-cal-1999-form-3.pdf
00577-cal-1999-form-5.pdf
00577-cal-1999-g.p.a.pdf
00577-cal-1999-letters patent.pdf
00577-cal-1999-priority document others.pdf
00577-cal-1999-priority document.pdf
577-CAL-1999-FORM-27.pdf
577/CAL/1999
SAMSUNG LELCTRONICS CO.LTD.
416,MAETAN-DONG ,PALDAL-GU, SUWON-CITY ,KYUNGKI-DO
1 MOON SEONG-JIN 107-401 ,JUGONGAPT., 35, WONCHEON-DONG ,PALDAL-GU, SUWON-CITY KYUNGKI-DO,
2 OH YOUNG NAM 403-302 ,SATBYULMAEUL BUNDANG-GU, KYUNGKI-DO,
3 CHUNG TAE-YUN 806-602 JUGONG AOPT., 41,BURIM-DONG ,GWACHEON-CITY, KYUNGKI-DO
4 KANG JUNG-SUK 201,40--385,SHINLIM-DONG, KWANAK-GU SEOUL
5 PARK PAN-GIE 422-202, CHUNGMYUNG MAEUL ,GUNYOUNG APT., 1047-1 YOUNGTONG-DONG, PALDAL-GU SUWON-CITY KYUNGKI-DO,
1 98-41757 1998-10-02 Republic of Korea
2 98-23992 1998-06-24 Republic of Korea