JP2002358727A - Information reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to change the reproduction priority of a plurality of applications described to a recording medium to an arbitrary order. SOLUTION: A plurality of the applications discriminated by plural file structures are recorded on an optical disk 100. In reproducing the information of this disk 100, the reproduction priority order of the applications is changed and set to the arbitrary order by the user in an application reproduction priority recording section 123.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital versatile disk (DVD) which allows a user to independently set the reproduction order of data (video information, audio information, game information, etc.) recorded on a digital versatile disk (DVD). To an information reproducing apparatus.

[0002]

2. Description of the Related Art In recent years, there has been developed an optical disk reproducing apparatus for reproducing moving images which reproduces an optical disk on which data such as video data and audio data are recorded. It is widely used for software and karaoke.

[0003] Among them, currently, MPEG standardized internationally
2 (Moving Image Coding Exp
In addition, a DVD-video standard that uses an AC3 audio compression method using an "ert Group" method has been proposed.

This standard supports MPEG2 as a moving picture compression system, AC3 audio, MPEG audio, and linear PCM as audio in accordance with the MPEG2 system layer. Control data for special playback such as rewind (navi pack) is added.

Further, this standard supports ISO9660 and micro UDF so that data can be read by a computer. Audio standards have been developed specifically for audio. In addition, D
In the field of VD, game software can also be recorded on a disc.

A DVD-RAM has been announced and 2.6G
A rewritable disk having a capacity of 4.7 Gbytes has been realized.

[0007] The technical development as described above stems from the fact that the recording capacity of DVDs is large.
Accordingly, it is possible to record various contents such as video signal recording information, audio recording information dedicated to audio, and game software (computer data) on one DVD.

As a result, taking a DVD application as an example, a DVD-video application and a DVD-audio application may be simultaneously recorded on one DVD medium.

[0009]

By the way, when the power of the player is turned on or the disc is inserted into the player in a state where the disc is inserted in the player, the application which starts reproduction first is as follows. ,
Fixed by the player. For this reason, it has been impossible for the user to arbitrarily set / change the application that preferentially starts reproduction. Therefore, when an application different from the application to be reproduced is reproduced, an operation by the user such as changing from the reproduced application to the application to be reproduced has been required.

[0010] Further, it is impossible to display the reproduction priority of an application fixed by the player on a TV monitor or the like, and to confirm the order by the user.

Further, when reproducing a medium in which many applications are recorded on one recording medium, the fact that the priority cannot be set or changed by the user is a factor that further deteriorates usability. I will.

As described above, in the conventional player, the information to be reproduced after the power is turned on is fixed by the reproducing device, and several operations by the user are repeated until the information required by the user is reproduced. Required.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an information reproducing apparatus in which the burden on the user who needs to select an application after turning on the power or inserting a disc is reduced and the usability is improved.

That is, the reproduction priority of a plurality of applications described on the recording medium is fixed for each reproduction apparatus, and the information is read and controlled by the navigation. Can be changed in any order by the user. In addition, the reproduction order set by the user is displayed on a TV monitor or the like, and the current reproduction order can be visually confirmed.

[0015]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention reads a recording medium in which a plurality of applications are recorded by being distinguished by a plurality of file structures, and a recording information of the recording medium. A playback unit for playing back the application, and a unit for controlling a playback order setting unit of the playback unit to change / set the playback priority of the plurality of applications to an arbitrary order based on a user operation. . Then, there is provided a means for reproducing the application recorded on the recording medium according to the priority changed and set by the user.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration example of the present information reproducing apparatus when an optical disk is used as a recording medium. The following device operates on the optical disc 100 as a recording medium. First, a main microprocessor section (hereinafter, referred to as a main MPU section) 120 is a section for integrally managing the entire recording / reproducing apparatus.

The disk drive unit 110 is a main MPU
A command from the unit 120 includes a function of controlling the rotation of the disk 100 and a function of reading data from the disk. The rotation control of the disk is performed through a servo device of the disk motor. Reading of data from the disk is realized through a pickup device using optical means for handling a laser beam.

At the time of the reproducing operation, the data processing unit 111
The reproduction signal is received from the disk drive unit 102, demodulated, error-corrected, and the demodulated signal is sent to the decoder unit 112.

The decoding unit 112 includes a data processing unit 111
Receives a pack sequence which is the reproduction data from. This pack row is provided to the separation unit 201. The separating unit 201 determines each pack, and the video packet is
02, the sub-picture packet is sent to the sub-picture (SP) decoding unit 2
12, the audio packet is transmitted to the audio decoding unit 2
05 respectively.

The NV (navigation) pack is
The data is sequentially stored in the internal memory 201 of the separation unit 201 so that the main MPU unit 101 can access it at any time.

When each packet is transferred from the separating unit 201 to the corresponding decoding unit, a PTS (presentation time stamp) or a DTS (decoding time stamp) is transmitted at a specified specific timing to the system time clock unit 250. And set the reference time for the entire device. For example, main M
The PU 120 loads the PTS in the NV pack into the system time clock unit 250, or the video decoder unit 201 automatically sets the DTS or PTS of the video data.
The TS is set in the system clock unit 250.

After this setting, each decoding unit compares the PTS in the packet with the system clock, and performs decoding and reproduction processing while maintaining a synchronized state.

The video data decoded by the video decoding unit 202 and the sub-picture data decoded by the sub-picture decoding unit 212 are input to the video processing unit 203 and synthesized.

The output of the video processing unit 203 and the output of the audio decoder processing unit 205 are converted by digital / analog (D / A) conversion units 204 and 206, respectively.
The signal is supplied to the display unit and the audio output unit via the V output unit 113.

The main MPU unit 101 performs integrated management of the entire apparatus and controls recording and reproduction. Further, control for changing and setting the reproduction order of the application, which is a feature of the present invention, is performed.

That is, the main MPU 120 has a built-in playback order setting section of the playback means when a disc is inserted. Here, there is provided a means for changing and setting the reproduction priority of a plurality of applications to an arbitrary priority based on a user operation. This means comprises an application playback priority setting section 122 and an application playback priority recording section 123.

Further, the main MPU 120 can control the application priority setting section 122 to set the reproduction order of the applications. This operation will be described later with reference to FIG. When setting the application reproduction priority, the user controls the input unit 121 such as a remote control key. The user can visually confirm the priority via a display unit of the playback device or a display connected to the playback device. When the user finishes setting the application priority, the set priority order is recorded in the application priority recording unit 123. When the power is turned on or when a disk is inserted (when a disk set in the application priority recording unit is inserted), the main MPU unit 120 determines the playback order based on the set priority.

An example of a DVD application will be described based on the operation flow example shown in FIG.

A plurality of applications recorded on the DVD disk are recorded in different directories in the file structure, and the state is shown in FIG.

In the example shown in FIG. 3, a root (ROOT) directory has a VIDEO application directory, an AUDIO application directory, a GA
ME application directory / JACKET
It is assumed that there is a directory for PICTURE and a directory for other applications.

A logical address is assigned to each directory. After the power of the reproducing apparatus is turned on, the application recorded on the disk and the address corresponding to the application are read, and the recorded information is stored in a memory or the like inside the reproducing apparatus. Record in the department.

In the prior art, the reproduction priority of the application corresponding to the read address is set in advance, and the reproduction of the application is automatically started from the one with the higher priority in accordance with the priority under the control of the navigation. I was going. At this time, the user cannot change the playback priority of the application,
It was fixed for each playback device. In addition, the reproduction priority of the application cannot be displayed on a television monitor or the like, and the user cannot confirm what setting is made.

Accordingly, in this system, the reproduction priority is recorded relative to the read address of each application in a recording unit such as a memory. If the playback priority has never been set in the past, the value determined for each playback device is selected as the initial value of the priority at power-on, and if set, the user sets it last. It is also possible to divide the case, for example, when the selected value is selected.

If there is no request from the input device such as a remote control key to change / set the reproduction priority of the application, the application is reproduced according to the set reproduction priority. When a user requests a setting change, the current priority is displayed on an on-screen display (OSD) or the like on a TV monitor or the like.

The routine for performing the above operation is steps A1 to A7 in FIG.

When a user requests a priority change,
FIG. 4 shows an example in which the current priority is displayed on the screen. The user can confirm the current playback priority on the display. In addition, it is possible to change to an arbitrary order while checking the current playback priority (step A8 in FIG. 2). As a change procedure, first, a user specifies two applications to be exchanged from an input device or the like. The two designated applications are displayed so as to indicate that they have been selected, such as being highlighted and displayed as blinking as shown in FIG. Next, the reproduction priority of the two applications recorded in the recording unit is switched, and recording is performed again (step A9 in FIG. 2).

Then, the changed recording section is read again, and the changed reproduction priority is displayed again on the display screen according to the information (steps A10 and A11 in FIG. 2). FIG.
Shows a display example after the change. This is repeatedly changed until the order as desired by the user is obtained. When the priority is changed as desired by the user, a request to end the change of the reproduction priority setting is input from the input device or the like from the user,
The setting / change ends (step 12 in FIG. 2). After that, the application is reproduced in accordance with the set priority order until the user again receives a request to change the reproduction priority setting.

As described above, in the present proposal, it is possible to change the reproduction priority of the application as desired by the user, and it is also possible to display the reproduction priority of each application on a monitor or the like to visually confirm the reproduction priority. It becomes possible, and the usability of the user improves.

FIG. 7 shows an outline of an optical disk according to the present invention.

FIG. 7A shows an overview of an information storage medium capable of recording and reproducing video information and music information, that is, an optical disk 100. The schematic recording information content (data structure) of the information recorded on the optical disc 100 is as follows.

As shown in FIG. 2B, the lead-in area (L
head-in Area) 1002, volume and file management information (Volume & File Man)
ager Information) area 1003,
Data area (Data Area) 1004, Lead-out area (Lead-out Area) 1005
Is provided.

The lead-in area 1002 has an embossed data zone (Emboss) in which the light reflection surface has an uneven shape.
ed data Zone), a mirror zone (MirrorZone) having a flat (mirror surface) surface, and a rewritable data zone (Rewrite) in which information can be rewritten.
able data Zone).

The contents of the volume and file management information area 1003 include audio and
Information about a file or entire volume of video data (Audio & Video Data) is recorded. The directory information shown in FIG. 3 is recorded in the volume and file management information area 1003, and the reproducing apparatus can recognize what application is recorded on the disc.

The data area 1004 describes specific video data and audio data, and information indicating a reproduction procedure thereof. Computer data area 10
A plurality of applications and the like may be recorded in 08 or 1010.

In the embossed data zone of the lead-in area 1002, the recording density of a file or the like, the recording start /
Information about the entire information storage medium, such as a physical sector number indicating the recording end position, is described.
Information relating to the manufacture of the information storage medium for each sheet is recorded in advance.

In the above description, the configuration of the optical disk reproducing device has been described. However, the present proposal can be used for data recorded on a recording medium other than the optical disk.

[0048]

As described above, according to the present invention,
The user can change the reproduction priority of a plurality of applications described in the recording medium in an arbitrary order by the user, and the reproduction order set by the user is displayed on a TV monitor or the like, and the current reproduction order is visually displayed. It is possible to confirm. This can improve the usability of the playback device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart shown to explain the operation of the main part of the present invention.

FIG. 3 is an explanatory diagram showing an example of a root directory for explaining the operation of the apparatus of the present invention.

FIG. 4 is a view showing an example of a display displayed for explaining an operation example of the apparatus of the present invention.

FIG. 5 is a diagram showing another example of display display shown for explaining an operation example of the apparatus of the present invention.

FIG. 6 is a view showing still another example of a display shown for explaining an operation example of the apparatus of the present invention.

FIG. 7 is an explanatory diagram showing an example of a data structure of an optical disk used in the apparatus of the present invention.

[Explanation of symbols]

100: optical disk, 110: disk drive unit, 1
11 Data processing unit, 112 Decoder unit, 120 Main MPU unit, 121 Input unit, 122 Application playback priority setting unit, 123 Application playback priority recording unit.

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference) 5C052 AA02 AB03 CC06 DD08 DD10 EE03 5C053 FA24 GB06 HA40 JA16 KA24 LA04 LA06 5D044 AB01 AB05 AB07 BC03 CC06 DE14 DE49 FG18 5D077 AA23 BA18 EA33 HA07 HC50 5D110 AA15 DA03AA DBA DC07 DE01 FA08

Claims (5)

[Claims] 1. A recording medium on which a plurality of applications are recorded by being distinguished by a plurality of file structures, reproduction means for reading recording information of the recording medium and reproducing the application, and setting a reproduction order of the reproduction means An information reproducing apparatus, comprising: means for controlling a plurality of applications and changing / setting reproduction priority of the plurality of applications to an arbitrary priority based on a user operation. 2. The apparatus according to claim 1, further comprising means for reproducing an application recorded on said recording medium in accordance with said priority changed and set by a user.
The information reproducing device according to 1. 3. The information reproducing apparatus according to claim 2, further comprising means for displaying the priority on a screen display device or the like connectable to the apparatus. 4. The information reproducing apparatus according to claim 1, wherein said reproducing means for reproducing said application independently has a reproducing decoder section corresponding to different applications. 5. The information reproducing apparatus according to claim 1, wherein said reproducing means has respective decoder sections for video information decoding, game information decoding, and audio information decoding.