JP3440948B2 - Recording device, playback device, recording medium - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rewritable recording medium, a recording device and a reproducing device for the rewritable recording medium, and in particular, a recording medium in which data such as moving images, still images, and audio is recorded together with data recording time information. The present invention relates to the recording device and the reproducing device.

[0002]

2. Description of the Related Art Large-capacity rewritable recording media such as DVD-RAM and DVD-RW have appeared, and have developed a technology for recording data such as images and sounds, and applied a video recorder / player. , Audio recorders / players, recording devices such as cameras, and reproducing devices are being developed. In this, as the video data, ISO / IEC11172 standard and ISO / IE
MPEG (Moving Picture E) described in C13818 standard, etc.
Data encoded by the xperts Group) method or the like is generally used. As the still picture data, the intra-frame coded data (I picture) of the MPEG system and the data coded by the JPEG system described in the ISO / IEC10918-1 standard are generally used. As audio data, data encoded by the MPEG system or LPCM (Linear Pulse Coding Modulation) system is generally used. For example,
About 10 for DVD-RAM with a capacity of 4.7 GB on one side
When still image data having a data size of 0 kilobytes is recorded, it is possible to record a huge number of still image data of about 47,000 sheets (= 4.7 × 1000000/100).

When recording these data on a recording medium, it is common to add the recording time information of the data to the data in order to facilitate data organization and data retrieval during reproduction. Has been done. As an example thereof, as in the technique described in Japanese Patent Laid-Open No. 2000-113641, a first recording time management method that multiplexes and records recording time information in stream data such as images and audio, and Japanese Patent Laid-Open No. 2000- 1345
As in the technology described in No. 65, a second recording time management method has been proposed in which information for managing stream data such as images and audio is separately provided and the recording time information is collectively recorded in the management information. ing. Since the first and second recording time management methods have their respective merits and demerits as described later, a recording time management method that uses them in combination is generally used.

In addition, assuming that the recording medium or recording device is used all over the world, the standard time of the area where the data is recorded
It is common practice to record time zone information indicating (or a time difference from a reference point) on a recording medium together with the data and the data recording time. In this case, instead of adding time zone information to each data, it is common to provide integrated management information (VMGI) that manages all data on the recording medium and add one time zone information to it. Target.

[0005]

Assuming that the above-mentioned recording medium is to be mailed all over the world, or that the recording apparatus is used while moving across the border, the standard time as a standard for recording time will change. At this time, there is a request to record the time of the recorded area in a recording medium in some form.

There are also cases where there is a request to change the time zone information once recorded.

In this case, when the time zone information is changed, it is necessary to convert the recording time information of the data (time difference correction) and re-record it on the recording medium in consideration of the time difference before and after the change. At this time, in the first recording time management method, it is necessary to read out all the recording time information from the stream data of enormous data size, correct the time difference, and re-record, which is not practical in view of the processing time. Meanwhile, the above
In the recording time management method of 2, all the recording time information is managed in one place as management information, so that the time difference correction in the previous period is easy. However, as described in JP-A-2000-134565, if the recording time information of all data is held in the management information, the size of the management information becomes huge, so that only the recording time information of some data is recorded. Is generally held in the management information, and the first recording time management method is commonly used for the remaining data. Therefore, with the conventional technology alone, the time zone change and the time difference correction of the data recording time information accompanying this can be performed without causing a mismatch in the recording time information between the management information and the stream data.
It is difficult to do it in a short time.

Further, once the time zone information managed by the general management information (VMGI) on the recording medium is changed, the time (local time) in the area where each data is recorded cannot be known. , Is inconvenient for the user.

Further, when the time zone is not changed in order to prevent the inconsistency, the time (current time) that the user is aware of at a foreign travel destination and the time displayed by the recording / reproducing apparatus are matched because of a time difference. In addition, it is inconvenient and inconvenient for the user.

An object of the present invention is to form a relationship between the local standard time and the time zone information of the disc in some form when the recording device is used by mailing the recording medium to the world or moving across the border. To record on a recording medium.

Another object of the present invention is to change the time zone and to correct the time difference of the data recording time information accordingly.
A data management method that can be performed in a short period of time without inconsistency in recording time information between management information and stream data, or a data management method that can reproduce the local time even after changing the time zone. Another object of the present invention is to provide a recording medium that realizes a data management method capable of performing time difference correction without changing the time zone, and a recording device and a reproducing device thereof.

[0012]

In order to solve the above-mentioned problems, a recording medium in which data is recorded, comprising time zone information indicating a standard time of a predetermined area, is a recording time of the data, and It has a time based on the standard time of the time zone information, and a difference between the time zone information indicating the standard time of the area where the data is recorded and the time zone information on the recording medium.

At least N recording media (where N is 1)
In addition to recording the above integer data, the general management information (VMGI) for managing the N data and M data (where M is 1
Record the data management information (VOB_GI) of no less than N and an integer less than N,
The general management information (VMGI) is time zone information (TM_ZONE) that represents the standard time of a typical area where the data is recorded.
The data management information (VOB_GI) has data recording time information (REC_TM) indicating the time when the data was recorded and time zone auxiliary information (TM_ZONE_SUB).

N pieces (where N is an integer of 1 or more) of data, general management information (VMGI) for managing the N pieces of data, and M
(However, M is an integer between 1 and N inclusive) data management information (VO
(B_GI) and a recording device that records the recording medium on a recording medium, and means for specifying the time zone information (TM_ZONE) representing the standard time of a typical area where the data is recorded and setting the integrated management information (VMGI). Means for specifying the data recording time information (REC_TM) indicating the time when the data was recorded and setting it in the data management information (VOB_GI), and the time zone auxiliary information (T
M_ZONE_SUB) is specified and the data management information (VOB_GI) is set.

N pieces of data (where N is an integer of 1 or more), general management information (VMGI) for managing the N pieces of data, and M
(However, M is an integer between 1 and N inclusive) data management information (VO
(B_GI) and the recording device for recording the recording medium on the recording medium, the time zone information (T
Means to change the value (TM_ZONE_0) of (M_ZONE) to a new value (TM_ZONE_1) and reset it to the general management information (VMGI), and the difference value before and after the change (DELTA_TM_ZONE = TM_ZONE_1 − TM_ZON
E_0) and the value (REC_TM) of the data recording time information (REC_TM) already set in the data management information (VOB_GI).
_TM_0) and the difference value (DELTA_TM_ZONE) added or subtracted (REC_TM_1) to the data management information (VOB_G
Means for resetting to I) are provided.

N pieces of data (where N is an integer of 1 or more), general management information (VMGI) for managing the N pieces of data, and M
(However, M is an integer between 1 and N inclusive) data management information (VO
(B_GI) and the recording device for recording the recording medium on the recording medium, the time zone information (T
Means to change the value (TM_ZONE_0) of (M_ZONE) to a new value (TM_ZONE_1) and reset it to the general management information (VMGI), and the difference value before and after the change (DELTA_TM_ZONE = TM_ZONE_1 − TM_ZON
E_0) and the value (REC_TM) of the data recording time information (REC_TM) already set in the data management information (VOB_GI).
_TM_0) and the difference value (DELTA_TM_ZONE) added or subtracted (REC_TM_1) to the data management information (VOB_G
I) and the time zone auxiliary information (TM_ZONE_SU) already set in the data management information (VOB_GI).
B) value (TM_ZONE_SUB_0) to the difference value (DELTA_TM_Z
A means for resetting a value (TM_ZONE_SUB_1) obtained by adding or subtracting ONE) to the data management information (VOB_GI) is provided.

N pieces of data (where N is an integer of 1 or more), general management information (VMGI) for managing the N pieces of data, and M
(However, M is an integer between 1 and N inclusive) data management information (VO
(B_GI) and the current time zone information indicating the standard time of the area in which the data is recorded in the recording device that records
(CUR_TM_ZONE) and the time zone information (T) from the general management information (VMGI) recorded on the recording medium.
(M_ZONE) means for reading the present time (CUR_TM) for recording the data, and the present time (CUR_TM)
From the current time zone information (CUR_TM_ZONE) and the time zone information (TM_ZONE), the data recording time information (REC_T
M) is specified and the data management information (VOB_GI) is set.

A reproducing device for a recording medium on which N pieces of data (where N is an integer of 1 or more) and M pieces of data (where M is an integer of 1 or more and N or less) are recorded. Means for reading the data recording time information (REC_TM) from the data management information (VOB_GI) recorded on the recording medium, and time zone auxiliary information (TM_ZO) from the data management information (VOB_GI).
NE_SUB) and the time zone auxiliary information
(TM_ZONE_SUB) and means for specifying and displaying correction data recording time information (MOD_REC_TM) from the data recording time information (REC_TM), and means for selecting data recorded on the recording medium using the display result And means for reading and reproducing data recorded on the recording medium using the selection result.

N pieces of data (where N is an integer of 1 or more), general management information (VMGI) for managing the N pieces of data, and M
(However, M is an integer between 1 and N inclusive) data management information (VO
(B_GI), a device for reading the time zone information (TM_ZONE) from the general management information (VMGI) recorded on the recording medium in the reproducing device of the recording medium, and data management recorded on the recording medium. Means for reading the data recording time information (REC_TM) from the information (VOB_GI), means for reading the time zone auxiliary information (TM_ZONE_SUB) from the data management information (VOB_GI), the time zone information (TM_ZONE) and the time zone auxiliary information (TM_ZONE_SUB) and the data recording time information (REC_TM) described above, the correction data recording time information (MOD_R
EC_TM) by specifying and displaying it, a means for selecting the data recorded on the recording medium using the display result, and reading the data recorded on the recording medium using the selection result. A means for reproducing is provided.

N pieces of data (where N is an integer of 1 or more), general management information (VMGI) for managing the N pieces of data, and M
(However, M is an integer between 1 and N inclusive) data management information (VO
(B_GI), a means for specifying the current time zone information (CUR_TM_ZONE) indicating the standard time of the area where the data is read and reproduced in the reproducing device of the recording medium, and the integrated management recorded in the recording medium. Means for reading time zone information (TM_ZONE) from information (VMGI), means for reading data recording time information (REC_TM) from data management information (VOB_GI) recorded on the recording medium, and current time zone information (CUR_TM_ZONE) ) And the time zone information (TM_Z
ONE) and a means for identifying and displaying the correction data recording time information (MOD_REC_TM) from the data recording time information (REC_TM),
A means for selecting data recorded on the recording medium using the display result, and a means for reading and reproducing data recorded on the recording medium using the selection result are provided.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a block diagram of an embodiment of a recording medium of the present invention. In the figure, the recording medium (1) comprises a volume structure (2) showing the logical structure of the entire recording medium and a logical volume space (3) which is a data recording space managed by the volume structure (2). It is common. The logical volume space (3) is an area that mainly records data as files. A subdirectory DIR (5) is provided under the root directory ROOT (4), and files are further recorded under the subdirectory DIR (5). Directory ROOT (4)
It is common to record the file immediately below. As the recording medium (1), a general recording medium such as an optical disc such as a DVD (Digital Versatile Disc), a magneto-optical disc such as an MO (Magneto-Optical), or a magnetic disc such as an HDD (Hard Disc Drive) is used. Can be used. For the volume structure (2), logical volume space (3), root directory ROOT (4), subdirectory DIR (5), file management method, etc., use the conventional file system technology described in ISO / IEC13346 standards. Since it can be carried out by using it, illustration and description thereof will be omitted, and hereinafter, a specific file type and a data structure in the file will be described.

First, N pieces (where N is an integer of 1 or more) of data (7) such as the above-mentioned moving picture data, still picture data, and audio data are collectively recorded in one data file (6). This is a commonly used technique for facilitating file management. At this time, the above-mentioned JP 2000-113A
Similar to the technology described in No. 641, data recording time information DT_RE
When C_TM (8) is added to the head of each data (7) and recorded, the effect of the present invention described later becomes remarkable. In addition, since a unified management information file (9) can be used for the purpose of making it compatible with both recording and not recording the data recording time information DT_REC_TM (8), the data recording The time information DT_REC_TM (8) is not an essential requirement for carrying out the present invention, and may be treated as an option. The detailed data structure of the data recording time information DT_REC_TM (8) will be described later, and the data structure of the management information file (9), which is a feature of the present invention, will be described below.

The management information file (9) is a file in which information for collectively managing the data (7) is recorded, and the general management information VMGI (10) and the data management information VOB_GI (1
It consists of 1).

The general management information VMGI (10) is information for collectively managing the items common to all the N pieces of data, and is time zone information TM_ZONE which is a feature of the present invention.
Including (12). The time zone information TM_ZONE (12) indicates the standard time of the area where the data is recorded.For example, the time difference from the world standard time (Greenwich Mean Time) is expressed by a positive / negative value in minutes (for example, 2 bytes). Can be considered. The general management information VMGI (10) contains the time zone information TM_ZONE (1
In addition to 2), an identifier for indicating the data management method used in the management information file (9), version information,
Pointer information to data management information VOB_GI (11) described later,
The size information of the management information file (9) may be held, but since it is not directly related to the gist of the present invention, illustration and description thereof will be omitted.

The data management information VOB_GI (11) is the data (7)
Is information for individually managing the data, and includes data recording time information REC_TM (13) and time zone auxiliary information TM_ZONE_SUB (14), which are features of the present invention. Here, when managing the data (7) and the data management information VOB_GI (11) in a one-to-one correspondence, as in the technique described in JP 2000-134565 A,
Since one data management information VOB_GI (11) may be provided for a data group in which a plurality of data (7) are collected, the number (M) of data management information VOB_GI (11) is 1 or more, and data (7) ) Number (N) or less. In addition, #i in the figure is i
Indicates that it is the second element (where i is an integer), and the same applies to other figures. In addition to the data recording time information REC_TM (13) and the time zone auxiliary information TM_ZONE_SUB (14), the data management information VOB_GI (11) includes this data management information VOB.
The number of data (7) managed by _GI (11), pointer information and data size information for accessing each data, reproduction time length information of data, text information indicating a title attached to the data, data (7 In the case where () is an image or sound, data attribute information such as the encoding method, resolution, sampling frequency, etc. may be held, but since it is not directly related to the gist of the present invention, illustration and description thereof will be omitted.

Data recording time information DT_REC_TM (8) and REC_TM
(13) represents the time when the data (7) corresponding to the data management information VOB_GI (11) was recorded on the recording medium (1) based on the standard time indicated by the time zone information TM_ZONE (12). Something, for example, year (14 bits), month (4 bits), day
It can be represented by a total of 40 bits (= 5 bytes) of data (5 bits), hours (5 bits), minutes (6 bits), and seconds (6 bits). Further, as in the technique described in JP-A-2000-134565, when one data management information VOB_GI (11) is provided for a data group in which a plurality of data (7) are collected, the data recording time As information REC_TM (13), time information F_REC_ of the first recorded data in the data group.
Both TM (for example, 5 bytes) and the recording time L_REC_TM (for example, 5 bytes) of the last recorded data (for example, 10 bytes in total) may be stored.

The time zone auxiliary information TM_ZONE_SUB (14) will be described with reference to FIGS. 2 and 3.

FIG. 2 shows the time zone auxiliary information TM_ZONE_SU.
As B (14), time zone information when recording data REC_TM_
The operation diagram when ZONE (15) is set is shown. When recording the data (7) on the recording medium (1), acquire the time zone information TM_ZONE (12) set in the general management information VMGI (10), and set the same value as the time zone when recording the data. Information RE
As C_TM_ZONE (15), time zone auxiliary information TM_ZONE_S
Set to UB (14). After that, when the time zone information TM_ZONE (12) in the general management information VMGI (10) is changed, the data recording time information REC_TM (1) in the data management information VOB_GI (11) is changed.
3) Only change, time zone auxiliary information
The data recording time information DT_REC_TM (8) in TM_ZONE_SUB (14) and the data file (6) is not changed. This eliminates the need to read all the large-sized data files (6), correct the data recording time DT_REC_TM (8) by time difference, and rewrite the data, thereby speeding up the process and
Data recording time information DT_REC_TM (8) (TM_ZONE (12) value −
(TM_ZONE_SUB (14) value), add data recording time information
Should match REC_TM (13), data file (6)
There is no inconsistency between the information inside and the information inside the management information file (9). Even after changing the time zone information TM_ZONE (12), the local standard time when the data was recorded is recorded in the time zone auxiliary information TM_ZONE_SUB (14), so the data recording time information REC_TM (8) after time difference correction To (TM_Z
The local time when the data was recorded can be reproduced by adding the value of ONE_SUB (14) -the value of TM_ZONE (12).

FIG. 3 shows the time zone auxiliary information TM_ZONE_SU.
As B (14), time zone difference information during data recording TM_
The operation diagram when ZONE_DIF (16) is set is shown. The time zone difference information TM_ZONE_DIF (16) is the time zone information TM_ZONE set in the time zone information REC_TM_ZONE (15) at the time of data recording and the general management information VMGI (10) described above.
Difference value from (12) (that is, the value of REC_TM_ZONE (15) − TM_Z
ONE (12) value). Unlike the operation in the case of Fig. 2, time zone information TM_ZONE (12) in the general management information VMGI (10)
When is changed, the data recording time information REC_TM (13) and the time zone difference information TM_ZONE_DIF (16) in the data management information VOB_GI (11) are changed at the same time. This allows large size data files (6), as before.
It is not necessary to read all the data and time-correct the data recording time DT_REC_TM (8) to re-write the data, which speeds up the process and also adds TM_Z to the data recording time information DT_REC_TM (8).
If the value of ONE_SUB (14) is added, the data recording time information REC_T
It should match M (13), and there is no inconsistency between the information in the data file (6) and the information in the management information file (9). Even after the time zone information TM_ZONE (12) is changed, the data recording time information REC_TM (8) after time difference correction is changed from TM_Z
By reducing the value of ZONE_SUB (14), the local time when the data was recorded can be reproduced. This technique uses time zone information
Until you change TM_ZONE (12), time zone difference information T
The feature is that M_ZONE_DIF (16) can remain 0.

FIG. 4 shows a modification of the data management information VOB_GI (11). In the figure, data management information VOB_GI (1
1) holds the time zone auxiliary information flag TM_ZONE_SUB_FLAG (17) in addition to the above-mentioned data recording time information REC_TM (13) and time zone auxiliary information TM_ZONE_SUB (14). This flag is, for example, time zone auxiliary information TM_ZONE_SUB (1
4) As a flag to indicate whether the value stored in this data area is valid as time zone auxiliary information TM_ZONE_SUB (14) when using the already reserved data area as the area to store Function. At this time, it is specified that the value when the data area (for example, 2 bytes) is reserved is always 0, and the most significant bit of the data area is the time zone auxiliary information flag TM_ZONE_SU.
By allocating to B_FLAG (17) and allocating the remaining 15 bits to the time zone auxiliary information TM_ZONE_SUB (14), the time zone auxiliary information TM_ZONE_SUB (14) is selectively selected only when the time zone auxiliary information flag TM_ZONE_SUB_FLAG (17) is 1. Can be used for time difference correction.

FIG. 5 shows a block diagram of an embodiment of the recording apparatus (18) of the present invention. The recording device (18) is an example of a device having a function of newly recording data and management information on a recording medium. First, the recording medium is written by the data writing means (200).
Write the data file (6) to (1). Along with this, the time zone information TM_ZONE identification means (19) identifies the time zone information (12) at the time of recording, and the overall management information VMGI setting means (20) sets a value in the overall management information VMGI (10). Write to the management information file (9) of the recording medium (1). Further, after specifying the data recording time information REC_TM (13) by the data recording time information REC_TM specifying means (21) and specifying the time zone auxiliary information TM_ZONE_SUB (14) by the time zone auxiliary information TM_ZONE_SUB specifying means (22), The data management information VOB_GI (1) is set by the data management information VOB_GI setting means (23).
Set a value in 1) and write it in the management information file (9) of the recording medium (1). Here, time zone information TM_ZONE identification means
(19) is, for example, a plurality of time zone information in the recording device (18).
This can be realized by providing a switch for selecting one from (for example, a 2-byte value) and a menu screen. The data recording time information REC_TM specifying means (21) can be realized by generating a REC_TM value (for example, a 5-byte value) using a timer (clock) that advances in units of seconds, for example. The time zone auxiliary information TM_ZONE_SUB specifying means (22) is the time zone information TM_ZONE specifying means in the case of the method shown in FIG.
This can be realized by using the output from (19) and outputting 0 in the case of the method shown in FIG. Recording medium (1)
The configuration of the means (200), (20), (23) for writing information in the will be described later.

FIG. 6 shows a block diagram of an embodiment of another recording apparatus (24) of the present invention. The recording device (24) is assumed to hold (cache) already recorded management information, and has a function of changing the time zone information in the management information based on the method shown in FIG. It is an example of an apparatus having. The portion for writing the data file (6) in the recording medium (1) by the data writing means (200) has the same configuration as shown in FIG. Also new time zone information TM
A means (25) for identifying _ZONE_1 is provided, and time zone information T
The old time zone information TM_ZONE_ held in the general management information VMGI setting means (28) by using the M_ZONE changing means (26)
Read 0, change to new time zone information TM_ZONE_1, and write to the management information file (9) of the recording medium (1). Along with this, the difference value calculating means (27) calculates the difference value DELTA_TM_ZONE of the time zone information TM_ZONE before and after the change (that is, TM_ZONE_1-TM_ZONE_0), and the data recording time information REC_TM changing means (29-1 to 29-M). Time zone auxiliary information T
Input to M_ZONE_SUB change means (30-1 to 30-M). Here, the integer value M means the number of data management information VOB_GI. In the data recording time information REC_TM changing means (29-1 to 29-M), the old data recording time information REC_TM_0 held in the data management information VOB_GI setting means (31-1 to 31-M) is read to read the difference value. Add DELTA_TM_ZONE to add new data recording time information R
Reset the data management information VOB_GI as EC_TM_1. In addition, time zone auxiliary information TM_ZONE_SUB change means (30-1 to 3
0-M), data management information VOB_GI setting means (31-1 to 31-M)
Old time zone auxiliary information TM_ZONE_SU held in
B_0 is read, the difference value DELTA_TM_ZONE is added, and new time zone auxiliary information TM_ZONE_SUB_1 is reset in the data management information VOB_GI. After that, data management information VOB_
The GI setting means (31) uses the data management information VOB_GI (11-1 to 11-
Write M) in the management information file (9) of the recording medium (1). Here, the means (25) for identifying the new time zone information TM_ZONE_1, for example, the recording device (24) is provided with a switch or a menu screen for selecting one of a plurality of time zone information (for example, a 2-byte value) Can be realized by
Means (200) (28) (31-1 to 31-) for writing information to the recording medium (1)
The configuration of M) will be described later. Also, the difference value DELTA_
When TM_ZONE is obtained, it is obvious that TM_ZONE_0-TM_ZONE_1 is used, and the addition and subtraction are interchanged by reversing the signs of other expressions, and addition and subtraction are interchanged, and the same applies to other figures.

FIG. 7 shows a block diagram of an embodiment of another recording apparatus (201) of the present invention. The recording device (201) is assumed to hold (cache) already recorded management information, and has a function of changing time zone information in the management information based on the method shown in FIG. It is an example of an apparatus having. The portion for writing the data file (6) in the recording medium (1) by the data writing means (200) has the same configuration as shown in FIG. Also new time zone information
The means (25) for specifying TM_ZONE_1 is provided, and the time zone information TM_ZONE changing means (26) is used to store the old time zone information TM_Z held in the general management information VMGI setting means (28).
ONE_0 is read, changed to new time zone information TM_ZONE_1, and written in the management information file (9) of the recording medium (1).
Along with this, the difference value calculation means (27) calculates the difference value DELTA_TM_ZONE of the time zone information TM_ZONE before and after the change (that is, TM_ZONE_1-TM_ZONE0), and the data recording time information REC_TM change means (29-1 to 29-M). input. Here, the integer value M means the number of data management information VOB_GI. The data recording time information REC_TM changing means (29-1 to 29-M) reads the old data recording time information REC_TM_0 held in the data management information VOB_GI setting means (31-1 to 31-M) and reads the difference value. Added DELTA_TM_ZONE to add new data recording time information REC
The data management information VOB_GI is reset as _TM_1. Thereafter, the data management information VOB_GI setting means (31) writes the data management information VOB_GI (11-1 to 11-M) in the management information file (9) of the recording medium (1). Where the new time zone information T
The means (25) for specifying M_ZONE_1 can be realized, for example, by providing the recording device (24) with a switch or a menu screen for selecting one from a plurality of time zone information (for example, a 2-byte value). The configuration of the means (200) (28) (31-1 to 31-M) for writing information on the recording medium (1) will be described later.

FIG. 8 shows a block diagram of an embodiment of another recording apparatus (32) of the present invention. The recording device (32) uses the time zone information TM_ZON stored in the already recorded management information.
Data recording time information REC_ when recording data in an area with a time difference from the time zone without changing E (12)
It is an example of a device having a function of specifying the TM (13). Data file on the recording medium (1) by the data writing means (200)
The part in which (6) is written has the same configuration as that shown in FIG. Along with this, a means (33) for specifying the time zone information CUR_TM_ZONE when recording data (hereinafter, present) and the general management information VMGI in the management information file (9) recorded on the recording medium (1). Means (34) for reading time zone information TM_ZONE from (10) and current time CUR_TM
The data recording time information REC_TM (13) is specified by the data recording time information REC_TM specifying means (36) based on these output results, and the data management information VOB_
After setting the data recording time information REC_TM (13) to the data management information VOB_GI (11) by the GI setting means (37), the recording medium
Write to the management information file (9) in (1). Here, the current time zone information CUR_TM_ZONE specifying means (33) is realized by, for example, providing the recording device (32) with a switch or a menu screen for selecting one from a plurality of time zone information (for example, a 2-byte value). it can. The current time CUR_TM identifying means (35) can be realized by generating a CUR_TM value (for example, a 5-byte value) using a timer (clock) that advances in units of seconds, for example. Data recording time information REC_TM identification means (36)
Is (REC_TM value = CUR_TM value + TM_ZONE value-CUR_TM_ZONE value)
Is a means for performing the calculation of, and can be realized by general addition / subtraction means. Means (200) for writing information on the recording medium (1)
(37), and means (34) for reading information from the recording medium (1)
The configuration of will be described later.

The operation of the recording device (32) shown in FIG. 8 will be described with a specific example. For example, recording medium
Time zone information TM_ZONE (12) in (1) is Japan Standard Time
Suppose that the situation is (World Standard Time + 9 hours) and that the time difference is 1 hour with Japan. At this time, the current time zone information CUR_TM_ZONE is set to Taiwan standard time (world standard time + 8 hours). If data is recorded at 3:00 pm Taiwan time (that is, current time CUR_TM = 15), the data recording time information REC_TM is based on the above calculation formula, REC_TM value = CUR_TM value + TM_ZONE value−CUR_TM_ZONE value = 15 + 9-8 By recording on the recording medium (1) as = 16 (that is, 4 pm Japan time), the time zone information TM_ZONE is recorded on the recording medium (1) even if the user is aware of the current time at the site. Data recording time information R consistent with (12)
EC_TM (13) can be written.

FIG. 9 shows an example of the operation of the selection menu screen (38) in the reproducing apparatus of the present invention. The selection menu screen (38) shows a menu screen displayed on a dedicated display terminal attached to the playback device, a monitor of a television or a personal computer (hereinafter, PC), and the selection cursor according to the user's input. By moving (43), a title to be reproduced can be selected from a plurality of titles (39) and a reproduction instruction can be issued to the reproduction device. Here, the display of the title can be realized by a general method of recording the text information representing the title in the above-mentioned data management information VOB_GI (11), and reading and displaying it, so that the illustration and the explanation will not be given. The features of the present invention will be described below.

In FIG. 9, the selection menu screen (38)
Further, it is desirable to display the data recording time together with the title (39) so that the user can easily recall the data content. At this time, the data recording time is preferably the time (40) at the time when the user recorded the data, and of course, it is conceivable that a time difference is included for each shooting area. By using the contents of the management information file (9) shown in FIG. 1 and setting the information shown in FIG. 2 or FIG. 3 as the time zone auxiliary information TM_ZONE_SUB (14), the data recording time (40 ) Can be reproduced as described above. If necessary, the change button (41) is displayed on the screen or provided in the playback device, so that the data recording time information (13) and the local time (40) recorded on the recording medium (1) are recorded.
It is also possible to switch between and display. In addition, to identify and display the shooting location (42) from the difference (that is, time difference) between the data recording time information (13) and the local time (40), a correspondence table between the time difference and the location can be displayed in a solid-state memory or the like. It can be easily realized by preparing. At this time, a representative city name (44) serving as a time difference reference may be specified and displayed from the time zone information TM_ZONE (12) recorded in the recording medium (1).

FIG. 10 shows a block diagram of an embodiment of the reproducing apparatus (45) of the present invention. The reproducing device (45) is an example of a device having a function of specifying and displaying the local time (40) shown in FIG. 9 by using the management information based on the method shown in FIG. First, the time zone information TM_ZONE (12) is read from the integrated management information VMGI (10) in the management information file (9) recorded on the recording medium (1) using the time zone information TM_ZONE reading means (48). The data is read and input to the correction data recording time information MOD_REC_TM specifying means (51-1 to 51-M) described later. On the other hand, from the data management information VOB_GI (11-1 to 11-M) in the management information file (9) recorded on the recording medium (1),
The data recording time information REC_TM (13-1 to 13-M) is read using the data recording time information REC_TM reading means (49-1 to 49-M) and the time zone auxiliary information TM_ZONE_SUB reading means
Time zone auxiliary information TM_ZONE_SUB using (50-1 to 50-M)
(14-1 to 14-M) is read and correction data recording time information MOD_REC
Input to _TM identification means (51-1 to 51-M). Correction data recording time information MOD_REC_TM In the identification means (51-1 to 51-M), (MOD_REC_TM
TM value = REC_TM value + TM_ZONE_SUB value-TM_ZONE value) is calculated to obtain correction data recording time information MOD_REC_TM.
In the display means (52), the correction data recording time information MOD_REC_
The TM is displayed as the local time (40) and the selection means (5
The selection cursor (43) is displayed and the selection result is obtained at (3), and the data file (6) is selectively read from the recording medium (1) by the data reading means (46) based on the selection result, and the reproduction means is provided. Use (47) to play and output images and sounds. Means (46) (48) (49) for reading information from the recording medium (1)
The configurations of -1 to 49-M) (50-1 to 50-M) and the reproducing means (47) will be described later.

FIG. 11 shows a block diagram of an embodiment of the reproducing apparatus (202) of the present invention. The reproducing device (202) is an example of a device having a function of specifying and displaying the local time (40) shown in FIG. 9 by using the management information based on the method shown in FIG. First, the data management information VOB_GI (11-1 to 11- in the management information file (9) recorded in the recording medium (1).
M) from the data recording time information REC_TM reading means (49-1 to 49
-M) to read the data recording time information REC_TM (13-1 to 13-M), and time zone auxiliary information TM_ZONE_SUB reading means (50-1 to 50-M) to read the time zone auxiliary information TM_
ZONE_SUB (14-1 to 14-M) is read and input to the correction data recording time information MOD_REC_TM specifying means (51-1 to 51-M). The correction data recording time information MOD_REC_TM identifying means (51-1 to 51-M) calculates (MOD_REC_TM value = REC_TM value + TM_ZONE_SUB value) to obtain the correction data recording time information MOD_REC_TM. In the display means (52), the correction data recording time information MOD_
While displaying REC_TM as the local time (40), the selection means (53) displays the selection cursor (43) and obtains the selection result, and based on the selection result, the data reading means (46) causes the recording medium (1). ), The data file (6) is selectively read out, and the reproduction means (47) is used to reproduce and output the image and sound. Means (46) (48) (49) for reading information from the recording medium (1)
The configurations of -1 to 49-M) (50-1 to 50-M) and the reproducing means (47) will be described later.

FIG. 12 shows a block diagram of an embodiment of the reproducing apparatus (54) of the present invention. The reproducing device (54) has a function of displaying the data recording information REC_TM (13) recorded in the recording medium (1) by time difference correction with the current time zone information CUR_TM_ZONE set in the device. It is an example of an apparatus. First, the current time zone information CUR_TM_ZONE identifying means (55) identifies the current time zone information CUR_TM_ZONE, and the correction data recording time information MOD_REC_TM identifying means (57-1 to
57-M). Where the current time zone information CUR_T
The M_ZONE specifying means (55) can be realized by, for example, providing the playback device (54) with a switch or a menu screen for selecting one from a plurality of time zone information (for example, a 2-byte value). On the other hand, the time zone information TM_ZONE (12) is read from the integrated management information VMGI (10) in the management information file (9) recorded on the recording medium (1) using the time zone information TM_ZONE reading means (56). The data is read and input to the correction data recording time information MOD_REC_TM specifying means (57-1 to 57-M) described later. Further, from the data management information VOB_GI (11-1 to 11-M) in the management information file (9) recorded in the recording medium (1), the data recording time information REC_TM reading means (49-1 to 49- M)
The data recording time information REC_TM (13-1 to 13-M) is read by using the correction data recording time information MOD_REC_TM specifying means (57-1 to
57-M). Correction data recording time information MOD_REC_TM
In the identification means (57-1 to 57-M), (MOD_REC_TM value = REC_TM value +
The CUR_TM_ZONE value-TM_ZONE value) is calculated to obtain the correction data recording time information MOD_REC_TM. The display means (52) displays the correction data recording time information MOD_REC_TM as the local time (4
(0), the selection means (53) displays the selection cursor (43) and obtains the selection result, and based on the selection result, the data reading means (46) reads the data file (1) from the recording medium (1). 6) Selective reading and playback means (47)
To play and output images and sounds. recoding media
The configurations of the means (46) (56) (49-1 to 49-M) and the reproducing means (47) for reading information from (1) will be described later.

13 and 14 are block diagrams showing an embodiment of the recording / reproducing apparatus of the present invention. The recording / reproducing apparatus may be configured as dedicated hardware, or may be configured to control general-purpose hardware such as a personal computer by a control procedure (hereinafter, referred to as a program) described later. In either case, the control unit (58) operates based on the memory (66) in which the program is stored. Note that the memory (66) in which the program is stored may use the same recording medium as the memory (67) in which management information described later is recorded, or the memory (66) may be a read-only memory (ROM) or flash memory. Use memory (67) as DRAM (Dynamic Random Access) as a recording medium such as a memory that is not suitable for frequent data rewriting.
Both may be configured separately, such as a recording medium suitable for frequently rewriting data such as Memory) or SRAM (Static Random Access Memory). The content (program) of the memory (66) in which the program is stored may be preset by the device manufacturer before the device is shipped, or as shown in FIG. 14, another recording medium storing the program before the device is operated.
It may be configured to read from a (computer-readable recording medium).

The recording / reproducing apparatus shown in FIG.
After receiving the operation instruction from the user at (59),
The operation control from 8) to each part described later is performed. During recording, signals such as images and sound are input from the input section (60),
The encoder (59) encodes the MPEG method or the like into data. Encoded data such as moving images, still images, and audio,
It is input to the drive (63) via the track buffer (62) and recorded on the recording medium (1). At this time, the control unit (58) also records the management information shown in FIGS. Since it is difficult to record the management information at the same time while the encoded data is being recorded in real time, the management information is once recorded in the memory (67), and then the recording medium is recorded after the encoded data is recorded. It may be controlled to record in (1). On the other hand, at the time of reproduction, the drive (63) temporarily reads the management information from the recording medium (1) into the memory (67), then reads the encoded data based on the information and inputs it to the track buffer (62). The encoded data from the track buffer (62) is decoded by the decoder (64) and output from the output unit (65). Since each unit shown in the figure can be easily realized by a known technique, detailed illustration and operation description are omitted.

FIG. 14 shows an example of the case where the recording / reproducing apparatus is constituted by a computer. In the figure, the recording / reproducing apparatus includes a computer main body (70), a monitor (68) for displaying images, a speaker (69) for outputting sound, a mouse (71) and a keyboard (72) for inputting operation instructions from a user. , A drive (73) for recording and reproducing data on the recording medium (1)
Consists of. A program for controlling the computer (70) is stored in the recording medium (1), and the program is read into the memory (66) in the computer via the drive (73) before operating as a recording / reproducing device ( Install). A computer-readable recording medium (1)
May be recorded as a rewritable recording medium such as the DVD-RAM, MO, flexible disk and the like on the same medium together with the data such as the image and sound, or may be recorded on a CD-ROM or
It may be a read-only disc such as a DVD-ROM.

The recording device, the reproducing device, and the selection menu screen described in FIGS. 5 to 12 can be replaced with the configuration of the recording and reproducing device shown in FIGS. 13 and 14. Further, means (200) (20) (23) (28) (31-1 ~ 31-M) (37) for writing information to the recording medium (1) described above,
And means for reading information from the recording medium (1) (34) (46) (4
8) (49-1 to 49-M) (50-1 to 50-M) (56) (49-1 to 49-M) are the drives (63) (73) described in FIGS. 13 and 14 above. Corresponding to
The reproducing means (47) is the decoder (6) shown in FIG.
Corresponds to 4).

Hereinafter, the operation of the control unit (58) shown in FIG.
The recording method and the reproducing method of the present invention will be described focusing on (that is, the contents of the program). The name and structure of the management information described later are the same as those shown in FIG.

FIG. 15 shows, as an example of the recording method used in the present invention, a method for realizing the operation of the recording apparatus shown in FIG. 5 by a program. In the figure, step (7
The recording operation is started from 4), and in step (75), the above-mentioned FIG.
Data such as images and sounds is recorded in the recording medium as described in the operation using the method 3 described above. Then, after identifying the time zone information TM_ZONE (12) in step (76),
7) In the time zone information TM_ZONE (12), the general management information V
Set to MGI (10), and in step (78), the general management information VMG
Record I (10) on the recording medium (1). On the other hand, in step (79), the data recording time information REC_TM (13) is specified, and in step (8
At 0), the data recording time information REC_TM (13) is set in the data management information VOB_GI (11). In step (81), the time zone auxiliary information TM_ZONE_SUB (14) is specified, and the time zone auxiliary information TM_ZONE_SUB (14) is specified as the data management information VOB_G.
Set to I (11). Finally, in step (83), the data management information VOB_GI (11) is recorded on the recording medium (1), and step (8)
Recording ends at 4). Here, the specification of the time zone information TM_ZONE (12) in step (76) can be realized by, for example, selecting one from a plurality of time zone information (for example, a 2-byte value) and storing it in the memory. To specify the data recording time information REC_TM (13) in step (79),
For example, using a timer (clock) that advances in seconds, the REC_TM value
This can be achieved by generating (for example, a 5-byte value). Time zone auxiliary information TM_ZONE_SU at step (81)
The identification of B (14) outputs the value of the time zone information TM_ZONE (12) as it is in the case of the method shown in FIG. 2, and outputs 0 in the case of the method shown in FIG. It can be realized by

FIG. 16 shows, as an example of the recording method used in the present invention, a method for realizing the operation of the recording apparatus shown in FIG. 6 by a program. In the figure, step (8
The recording operation is started from 5), and in step (86), the recording operation shown in FIG.
Data such as images and sounds is recorded in the recording medium as described in the operation using the method 3 described above. Next, after identifying new time zone information TM_ZONE_1 in step (87), the value (TM_ZONE_0) of time zone information TM_ZONE (12) already set in the general management information VMGI (10) in step (88). To the new value (TM_ZONE_1), and the general management information VMGI
Reset to (10). In parallel with this, the difference value DELTA_TM_ZO before and after the time zone information TM_ZONE is changed in step (89).
Calculate NE (ie TM_ZONE_1-TM_ZONE_0). In step (90), the variable i is prepared, its value is initialized to 1, and the loop processing is started. In step (91), the difference value DELTA_TM_ZONE is added to the value REC_TM_0 of the data recording time information REC_TM (13) already set in the i-th data management information VOB_GI (11).
The value REC_TM_1 obtained by adding
Reset to GI (11). Further, in step (92), the value TM_ZONE_SUB of the time zone auxiliary information TM_ZONE_SUB (14-i) already set in the i-th data management information VOB_GI (11-i)
Value obtained by adding the difference value DELTA_TM_ZONE to _0 TM_ZONE_SUB
_1 is obtained and reset to the data management information VOB_GI (11-i). In step (93), all data management information VOB_GI
It is determined whether or not (11-i) has been processed, and if all have been processed, proceed to step (95) .If all have not been processed, at step (94) add 1 to the value of variable i. And proceed to step (91). Finally, in step (95), the data management information VOB_GI (11) is recorded in the recording medium (1), and in step (96)
Recording ends at. Here, the identification of the new time zone information TM_ZONE_1 in step (87) can be realized by, for example, selecting one from a plurality of time zone information (for example, a 2-byte value) and storing it in the memory.

FIG. 17 shows, as an example of the recording method used in the present invention, a method for realizing the operation of the recording apparatus shown in FIG. 7 by a program. In the figure, step (8
The recording operation is started from 5), and in step (86), the recording operation shown in FIG.
Data such as images and sounds is recorded in the recording medium as described in the operation using the method 3 described above. Next, after identifying new time zone information TM_ZONE_1 in step (87), the value (TM_ZONE_0) of time zone information TM_ZONE (12) already set in the general management information VMGI (10) in step (88). To the new value (TM_ZONE_1), and the general management information VMGI
Reset to (10). In parallel with this, the difference value DELTA_TM_ZO before and after the time zone information TM_ZONE is changed in step (89).
Calculate NE (ie TM_ZONE_1-TM_ZONE_0). In step (90), the variable i is prepared, its value is initialized to 1, and the loop processing is started. In step (91), the difference value DELTA_TM_Z is added to the value REC_TM_0 of the data recording time information REC_TM (13-i) already set in the i-th data management information VOB_GI (11-i).
The value REC_TM_1 obtained by adding ONE is obtained, and the data management information V
Reset to OB_GI (11-i). In step (93), it is determined whether or not all the data management information VOB_GI (11-i) has been processed, and if all have been processed, proceed to step (95). At (94), 1 is added to the value of the variable i, and the process proceeds to step (91). Finally, in step (95), the data management information VOB_GI (11) is recorded on the recording medium.
Recording is performed in (1), and recording is ended in step (96). Now, the new time zone information TM_ZONE_ in step (87)
The specification of 1 can be realized by, for example, selecting one from a plurality of time zone information (for example, a 2-byte value) and storing it in the memory.

FIG. 18 shows, as an example of the recording method used in the present invention, a method for realizing the operation of the recording apparatus shown in FIG. 8 by a program. In the figure, step (9
The recording operation is started from 7), and in step (98), the above-mentioned FIG.
Data such as images and sounds is recorded in the recording medium as described in the operation using the method 3 described above. Then, in step (99), the current time zone information CUR_TM_ZONE is specified. In step (100), the time zone information TM_ZONE (12) is read from the general management information VMGI (10) recorded in the recording medium (1). In step (101), the current time CUR_TM is specified. In step (102), the current time CUR_TM, current time zone information CUR_TM_ZONE and time zone information TM_ZONE
The data recording time information REC_TM (13) is specified from (12), and the data recording time information REC_TM (13) is set in the data management information VOB_GI (11) in step (103), and then step (104)
The data management information VOB_GI (11) is recorded on the recording medium (1) at, and the recording operation is ended at step (105). Here, the current time zone information CUR_TM_ZON in step (99)
The E specification can be realized by, for example, selecting one from a plurality of time zone information (for example, a 2-byte value) and storing it in the memory. Current time CUR at step (101)
_TM can be specified by generating a CUR_TM value (for example, a 5-byte value) using a timer (clock) that advances in units of seconds, for example. Data recording time information R in step (102)
The specification of EC_TM (13) can be realized by performing an operation of (REC_TM value = CUR_TM value + TM_ZONE value−CUR_TM_ZONE value).

FIG. 19 shows, as an example of the reproducing method used in the present invention, a method for realizing the operation of the reproducing apparatus shown in FIG. 10 by a program. In the figure, steps
The recording operation is started from (106), and the time zone information TM_ZONE (12) is read from the general management information VMGI (10) recorded in the recording medium (1) in step (107). In step (108), the variable i is prepared, its value is initialized to 1, and the loop processing is started. At step (109), the data recording time information REC_TM (13-i) is read from the i-th data management information VOB_GI (11-i) recorded on the recording medium (1). Then step (11
0), the time zone auxiliary information TM_ZONE_ from the i-th data management information VOB_GI (11-i) recorded on the recording medium (1).
Read SUB (14-i). In the following step (111), the time zone information TM_ZONE (12) and the data recording time information R
EC_TM (13-i) and the time zone auxiliary information TM_ZONE_SUB (1
4-i) is used to calculate (MOD_REC_TM value = REC_TM value + TM_ZONE_SUB value-TM_ZONE value), and correction data recording time information
MOD_REC_TM is specified and displayed in the form as shown in FIG. 9, for example. In step (112), it is determined whether or not all the data management information VOB_GI (11) has been processed. If all the data management information VOB_GI (11) has been processed, the process proceeds to step (114). At 1, the value of variable i is incremented by 1 and the process proceeds to step (109). In step (114), the data recorded in the recording medium (1) is selected using the display result, and in step (115), the data recorded in the recording medium (1) is selected using the selection result. Is read out and reproduced, and the reproducing operation is ended in step (116).

FIG. 20 shows, as an example of the reproducing method used in the present invention, a method for realizing the operation of the reproducing apparatus shown in FIG. 11 by a program. In the figure, steps
The recording operation starts from (106), and the variable i
Prepare and initialize its value to 1 and start loop processing.
At step (109), the data recording time information REC_TM (13-i) is read from the i-th data management information VOB_GI (11-i) recorded on the recording medium (1). Next, in step (110), the time zone auxiliary information TM_ZONE_SUB is calculated from the i-th data management information VOB_GI (11-i) recorded on the recording medium (1).
Read (14-i). In the following step (111), the data recording time information REC_TM (13-i) and the time zone auxiliary information TM_ZONE_SUB (14-i) are used to calculate (MOD_REC_TM value = REC_TM value + TM_ZONE_SUB value) to record the correction data. The time information MOD_REC_TM is specified and displayed in the form as shown in FIG. 9, for example. In step (112), it is determined whether or not all the data management information VOB_GI (11) has been processed. If all the data management information VOB_GI (11) has been processed, the process proceeds to step (114). At 1, the value of variable i is incremented by 1 and the process proceeds to step (109). Step (114)
Then, the data recorded on the recording medium (1) is selected using the display result, and in step (115), the data recorded on the recording medium (1) is read and reproduced using the selected result. Then, in step (116), the reproducing operation is ended.

FIG. 21 shows, as an example of the reproducing method used in the present invention, a method for realizing the operation of the reproducing apparatus shown in FIG. 12 by a program. In the figure, steps
The recording operation is started from (117), and the current time zone information CUR_TM_ZONE is specified in step (118). Subsequent steps
In (119), the general management information VM recorded in the recording medium (1)
Time zone information TM_ZONE (12) is read from GI (10), variable i is prepared and its value is initialized to 1 in step (120), and loop processing is started. Recording medium in step (121)
I-th data management information VOB_GI (11-
The data recording time information REC_TM (13-i) is read from i), and in the following step (122), the current time zone information CUR_TM_
ZONE and the time zone information TM_ZONE (12) and the data recording time information REC_TM (13-i) are used (MOD_REC_TM value = REC
_TM value + CUR_TM_ZONE value-TM_ZONE value) is calculated to specify the correction data recording time information MOD_REC_TM and display it in the form as shown in FIG. 9, for example. In step (123), it is determined whether or not all data management information VOB_GI (11) has been processed.
Proceed to step (12) and proceed to step (12 if not all).
At 4), 1 is added to the value of variable i, and the process proceeds to step (121).
In step (125), the data recorded in the recording medium (1) is selected using the display result, and in step (126), the data recorded in the recording medium (1) is selected using the selected result. Is read out and reproduced, and the reproducing operation is ended in step (127).

[0054]

According to the present invention, when the recording medium is mailed all over the world or when the recording apparatus is used while moving across the border, the relationship between the local standard time and the time zone information of the disc is expressed in some form. Can be recorded on a recording medium.

Further, according to the present invention, the time zone change and the time difference correction of the data recording time information associated therewith can be processed in a short time without causing the recording time information between the management information and the stream data to be inconsistent. It becomes possible to do. Also, it becomes possible to reproduce the local time even after changing the time zone. In addition, it is possible to correct the time difference without changing the time zone.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a recording medium of the present invention.

FIG. 2 is an operation explanatory diagram of the embodiment of the present invention.

FIG. 3 is an operation explanatory diagram of the embodiment of the present invention.

FIG. 4 is a configuration diagram of a modified example of the recording medium of the present invention.

FIG. 5 is a configuration diagram of an embodiment of a recording apparatus of the present invention.

FIG. 6 is a configuration diagram of an embodiment of a recording apparatus of the present invention.

FIG. 7 is a configuration diagram of an embodiment of a recording apparatus of the present invention.

FIG. 8 is a configuration diagram of an embodiment of a recording apparatus of the present invention.

FIG. 9 is a diagram illustrating an example of the operation of the playback device of the present invention.

FIG. 10 is a configuration diagram of an embodiment of a reproducing apparatus of the present invention.

FIG. 11 is a block diagram of an embodiment of a reproducing apparatus of the present invention.

FIG. 12 is a configuration diagram of an embodiment of a reproducing apparatus of the present invention.

FIG. 13 is a configuration diagram of an embodiment of a recording / reproducing apparatus of the present invention.

FIG. 14 is a configuration diagram of an embodiment of a recording / reproducing apparatus of the present invention.

FIG. 15 is an example of a recording method used in the present invention.

FIG. 16 is an example of a recording method used in the present invention.

FIG. 17 is an example of a recording method used in the present invention.

FIG. 18 is an example of a recording method used in the present invention.

FIG. 19 is an example of a reproducing method used in the present invention.

FIG. 20 is an example of a reproducing method used in the present invention.

FIG. 21 is an example of a reproducing method used in the present invention.

[Explanation of symbols]

1 ... Recording medium; 2 ... Volume structure; 3 ... Logical volume space; 4 ... Root directory; 5 ... Subdirectory;
6 ... Data file; 7 ... Data; 8 ... Data recording time; 9
… Management information file; 10… General management information (VMGI); 11… Data management information (VOB_GI); 12… Time zone information (TM_ZON)
E); 13 ... Data recording time information (REC_TM); 14 ... Time zone auxiliary information (TM_ZONE_SUB); 15 ... Time zone information when recording data (REC_TM_ZONE); 16 ... Time zone difference information
(TM_ZONE_DIF); 17 ... Time zone auxiliary information flag (TM_Z
ONE_SUB_FLAG); 18,24,32,201 ... Recording device; 19 ... Time zone information (TM_ZONE) specifying means; 20,28 ... General management information (V
MGI) setting means; 21, 36 ... Data recording time information (REC_TM) specifying means; 22 ... Time zone auxiliary information (TM_ZONE_SUB) specifying means; 23, 31, 37 ... Data management information (VOB_GI) setting means; 25
… New time zone information (TM_ZONE_1) identification means; 26…
Time zone information (TM_ZONE) changing means; 27 ... Difference value calculating means; 29 ... Data recording time (REC_TM) changing means; 30 ... Time zone auxiliary information (TM_ZONE_SUB) changing means; 33,55 ... Current time zone information (CUR_TM_ZONE) Specific means; 34, 48, 56 ...
Time zone information (TM_ZONE) reading means; 35 ... Current time
(CUR_TM) specifying means; 38 ... selection menu screen; 39 ... title; 40 ... local time; 41 ... change button; 42 ... shooting location; 43
... selection cursor; 44 ... time zone; 45, 54, 202 ... playback device; 46 ... data reading means; 47 ... playback means; 49 ... data recording time information (REC_TM) reading means; 50 ... time zone auxiliary information (TM_ZONE_SUB) reading means 51, 57 ... Correction data recording time information (MOD_REC_TM) specifying means; 52 ... Display means; 53
... selection means; 58 ... control section; 59 ... operation section; 60 ... input section; 61
Encoder; 62 ... Track buffer; 63, 73 ... Drive; 64 ... Decoder; 65 ... Output unit; 66 ... Memory for storing program; 67 ... Memory for storing management information; 68 ...
Monitor; 69 ... Speaker; 70 ... Computer; 71 ... Mouse; 72 ... Keyboard; 74-127 ... Steps; 200 ... Data writing means.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 2000-324429 (JP, A) JP 7-105668 (JP, A) International publication 00/49803 (WO, A1) (58) Fields investigated ( Int.Cl. ⁷ , DB name) G11B 20/12 G11B 27/00 H04N 5/92

Claims (5)

(57) [Claims] 1. Data management information for managing one or a plurality of data, N (where N is an integer) data as a data group, and M (where M is an integer) data group are managed. A recording device for recording the integrated management information on an optical disk recording medium, wherein the integrated management information includes time zone information (TM_ZON) indicating a time difference between the world standard time (Greenwich standard time) and the standard time at a predetermined location.
E) means for recording the time difference between the world standard time (Greenwich Mean Time) and the standard time at the place where the data of the data group managed by the data management information is recorded in each of the data management information. A means for recording time zone information (REC_TM_ZONE) at the time of data recording, and a first data representing a recording time of the first recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE). Means for recording recording time information, and means for recording second data recording time information indicating the recording time of the last recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE) And the time zone information (REC_TM_ZONE) when recording the data
And a means for recording a flag indicating whether or not a time difference between the world standard time (Greenwich Mean Time) and the standard time of the place where the data is recorded is specified. 2. One or a plurality of data, N (where N is an integer) data management information for managing the data as a data group, and M (where M is an integer) the data group are managed. And a time zone information (TM_ZONE) indicating the time difference between the world standard time (Greenwich Mean Time) and the standard time at a predetermined location in the general management information. And a time difference between the world standard time (Greenwich Mean Time) and the world standard time (Greenwich Mean Time) of the place where the data of the data group managed by the data management information is recorded in each of the data management information. Indicating the time zone information (REC_TM_ZON
E), and a step of recording first data recording time information indicating the recording time of the first recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE). Recording second data recording time information indicating the recording time of the last recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE); Time zone information (REC_TM_ZONE)
Recording a flag indicating whether or not a time difference from the standard time of the place where the data is recorded is recorded, the recording medium having a program recorded thereon for executing the recording method. 3. One or more data, data management information for managing N (where N is an integer) data as a data group, and M (where M is an integer) data group are managed. A playback device for playing back the optical disc recording medium with the integrated management information, wherein the integrated management information is time zone information (TM_ZONE) indicating the time difference between the world standard time (Greenwich standard time) and the standard time at a predetermined location. Including the data management information, the time zone information at the time of data recording indicating the time difference between the world standard time (Greenwich Mean Time) and the standard time at the location where the data of the data group managed by the data management information is recorded. (REC_TM_ZONE) and the recording time of the first recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE). A first data recording time information, the last recorded time of the recorded data in the time zone information (tm_zone) second data recording time information indicating based on the standard time indicated by in the data group (REC_TM)
And the time zone information (REC_TM_ZONE) when recording the data
And a flag indicating whether or not a time difference from the world standard time (Greenwich Mean Time) of the location where the data is recorded is specified, and the first or second data recording is performed when the data is reproduced. The time information, the time zone information (TM_ZONE), and the time zone information at the time of recording the data (REC_TM_ZONE) has a specifying means for specifying the local time at the time of recording the place where the data is recorded, and the specifying means, , The data only when the flag indicates that the time zone information (REC_TM_ZONE) at the time of recording the data specifies the time difference from the world standard time (Greenwich Mean Time) of the place where the data is recorded. World Standard Time (Greenwich Mean Time) of the place where was recorded
A reproducing device characterized by specifying a time difference between 4. One or a plurality of data, data management information for managing N (where N is an integer) data as a data group, and M (where M is an integer) data group are managed. The central management information is recorded, and the central management information includes time zone information (TM_ZONE) indicating the time difference between the world standard time (Greenwich Mean Time) and the standard time at a predetermined location. The time zone information (REC_TM_ZONE) at the time of data recording showing the time difference between the standard time (Greenwich Mean Time) and the standard time at the place where the data was recorded, and the recording time of the first recorded data in the data group. First data recording time information (REC_TM) represented based on the standard time indicated by the time zone information (TM_ZONE)
And second data recording time information (REC_TM) indicating the recording time of the last recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE).
And the time zone information (REC_TM_ZONE) when recording the data
Is a reproduction method of a recording medium including a flag indicating whether to specify a time difference from the world standard time (Greenwich Mean Time) of the place where the data is recorded, and a step of reproducing the data, , The first or second data recording time information (REC_TM), the time zone information (TM_ZONE), and the time zone information (REC_TM_ZONE) at the time of recording the data, the local time at the time of recording the data. A step of specifying, wherein the step of specifying is performed only when the flag indicates to specify a time difference from a world standard time (Greenwich Mean Time) of a place where the data is recorded. A recording medium on which a program for executing the reproducing method is recorded. 5. One or a plurality of data, data management information for managing N (where N is an integer) data as a data group, and M (where M is an integer) data group are managed. The optical disc recording medium on which the general management information is recorded, wherein the general management information includes time zone information (TM_ZONE) indicating the time difference between the world standard time (Greenwich Mean Time) and the standard time at a predetermined location. , The data management information indicates the time difference between the world standard time (Greenwich Mean Time) and the standard time at the location where the data of the data group managed by the data management information is recorded (REC_TM_ZONE) And a first data indicating the recording time of the first recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE). Data recording time information (REC_TM)
And second data recording time information (REC_TM) indicating the recording time of the last recorded data in the data group based on the standard time indicated by the time zone information (TM_ZONE).
And the time zone information (REC_TM_ZONE) when recording the data
Includes a flag indicating whether to specify a time difference from the world standard time (Greenwich Mean Time) of the location where the data is recorded, and the flag is time zone information (REC_TM_ZONE) at the time of recording the data. Indicates that the time difference from the world standard time (Greenwich Mean Time) of the location where the data was recorded is specified, only when the data is reproduced, the first or second data recording time information ( REC_TM), the time zone information (TM_ZONE), and the time zone information (REC_TM_ZONE) at the time of recording the data, it is possible to specify the local time at the time of recording the location where the data is recorded. .