JP3651662B2 - Recording medium playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording medium reproducing apparatus for reproducing content information such as audio information and video information recorded on a recording medium such as a DVD (Digital Versatile Disc).
[0002]
[Prior art]
Conventionally, when a disc is played back using a recording medium playback device for playing back a recording medium such as a DVD, the playback device first plays back the volume structure information recorded on the disc and based on the played volume structure information. Play file structure information. The file structure information includes information such as a recording start position (start address) on the recording medium of each file constituting the content information. The playback device starts playback of the disc according to the playback procedure specified in advance in the file structure information.
Here, if a menu screen for selecting an item to be played back is recorded on the disc to be played back, the playback device plays back the menu screen and outputs it to a display device connected to the playback device. Pause.
[0003]
The user (user) selects an item to be reproduced from items on the menu screen displayed on the display device. Then, the playback apparatus plays back a file of content information such as audio information and video information corresponding to the item selected by the user from the disc.
For example, when playing a disc on which a movie is recorded, the user most often plays to see the main part of the movie. In most cases, the main part of a movie is recorded as content information having the maximum amount of data on the disc, and in the case of a DVD, it is recorded in units called VTS (Video Title Set) for each content information.
[0004]
[Problems to be solved by the invention]
In a conventional recording medium playback device, every time a disc on which a menu screen is recorded is played, the user needs to select a playback item once on the menu screen, and time and labor are required to start playback.
In a playback apparatus that continuously plays back a plurality of discs, a menu screen for each disc is displayed each time the disc is replaced and played back. Each time, continuous playback of movies, dramas, etc. recorded across multiple discs, or dramas recorded on multiple discs with continuity in the front and back were interrupted, and selection operation by the user was required. .
The problem to be solved by the present invention is to enable playback to be automatically started in a playback device in order to eliminate the trouble of such a selection operation using a menu screen.
[0005]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a recording medium reproducing apparatus for reproducing a recording medium on which a plurality of pieces of content information are recorded. reproducing means and, calculating means and the maximum content information data amount calculated by the calculating means for calculating the data amount of the content information from the file structure information reproduced by said reproducing means for reproducing the file structure information including information the select those comprising control means for controlling said Ru to start the playback in the playback device.
[0006]
According to a second aspect of the present invention, there is provided a recording medium reproducing apparatus for reproducing a recording medium on which a plurality of pieces of content information are recorded. Reproducing means for reproducing file structure information including information, computing means for calculating a data amount of content information from the file structure information reproduced by the reproducing means, recording medium accommodating means for accommodating a plurality of recording media, and recording medium conveying means you transported to the reproducing means the first recording medium from among a plurality of recording media accommodated in the recording medium accommodating unit, the data amount calculated by said calculating means selects the maximum of the content information the a control means for controlling to start the reproduction by the reproducing means, the control means of the plurality housed in the recording medium accommodating unit Continuously recording medium is to control that Ru is reproduced in said reproducing means.
The recording medium playback apparatus according to claim 3 of the present invention is the recording medium playback apparatus according to claim 1 or 2, wherein the playback means plays back the menu screen information recorded on the recording medium, and the playback is performed. Display output means for outputting the menu screen information reproduced by the means to the display device, and selection operation means for selecting an item based on the menu screen information, and the control means includes the display output means for displaying the menu screen information. When the selection operation is performed by the selection operation unit within a preset time after the output, the reproduction unit is caused to reproduce the recording medium based on the selection operation result, and the selection operation is performed within the preset time. If the selection operation is not performed by the means, the content information having the maximum data amount calculated by the calculation means is selected and the reproduction means starts reproduction. It is intended to control.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block diagram showing the configuration of the first embodiment of the recording medium reproducing apparatus of the present invention.
A disk 1 such as a DVD used as a recording medium is rotationally driven and controlled by a spindle motor 6. A signal recorded on the disk 1 is detected by an optical pickup 2 and amplified by an RF (Radio Frequency) amplifier 3. The servo processor 4 uses the signal amplified by the RF amplifier 3 to drive and control the slide motor 5 that reciprocates the optical pickup 2 in the radial direction of the disk 1 (direction indicated by arrow A). Control is performed so as to follow one recording pit row.
[0008]
An output signal from the RF amplifier 3 is stored in the memory 8 via the decoder 7. When the disc 1 is a CD (Compact Disc), the signal read from the memory 8 is subjected to EFM (Eight to Fourteen Modulation) demodulation and CIRC (Cross Interleave Read-Solomon Code) encoding processing by the decoder 7. When the disk 1 is a DVD, the decoder 7 performs EFM + demodulation and RS-PC (Read Solomon-Product Code) encoding processing.
[0009]
The signal decoded by the decoder 7 is separated into an audio signal and a video signal by the AV decoder 9, and the respective compression processing is solved. The decompressed video signal is output as an 8-bit luminance signal Y, color difference signals (RY, BY), and a synchronization signal.
The audio signal output from the AV decoder 9 is converted into an analog audio signal by an audio DA converter (audio D / A) 11 and output from a terminal 12.
[0010]
The video signal output from the AV decoder 9 is converted into an analog luminance signal Y and color difference signals (R−Y, B−Y) by a video DA converter (video D / A) 13, and OSD (On Screen Display). 14 adds OSD display information. An analog video signal and a synchronization signal output from the video D / A 13 are input to the video converter 15 via the OSD 14, and a composite video signal of NTSC (National Television System Commitee) system or PAL (Phase Alteration by Line) system is used. And an S video signal (Y signal, C signal) are generated, and the video signal is output from the terminal 16.
[0011]
A display unit 17 for displaying data and the like, an operation unit 18 having keys for an operator to input data, an external interface unit 19 such as a serial interface for connecting a keyboard and the like, and writing and reading various data The external storage device 20 to be performed is connected to and controlled by the system control unit 21.
The system control unit 21 is configured by a circuit using a microcomputer, and controls the operation of each unit of the recording medium playback device.
[0012]
With respect to the recording medium playback apparatus having the above-described configuration, when a disc on which a menu screen for selecting content information such as a movie and an item to be played is played back, the user does not need to perform a selection operation on the menu screen The operation of automatically starting playback will be described.
[0013]
FIG. 2 is a flowchart showing the operation of the recording medium playback apparatus of the first embodiment, and shows the operation of automatic playback.
When the user sets the disc 1 in the playback device, automatic playback is started (S1), volume structure information and file structure information are played back from the disc 1 and acquired by the system control unit 21 (S2). The system control unit 21 starts playback of the disc 1 according to the playback procedure specified in advance in the file structure information (S3), and pauses the playback operation when the menu screen is output to the terminal 16 (S4).
[0014]
Here, the data amount (size) of the content information is determined (S5). FIG. 3 shows a flowchart of the size determination process performed in S5.
The discrimination process is started (ST1), the system control unit 21 acquires the start address of each VTS (Video Title Set) that is a recording unit of content information from the file structure information (ST2), and the VTS of the VTS from the volume structure information. The final address of the recording area (partition) is acquired (ST3).
[0015]
Next, the size (S_VTS) of each VTS is calculated (ST4). The calculation formula is S_VTS (n) = [start address of VTS (n + 1)] − [start address of VTS (n)]. Here, n = 0, 1, 2,..., That is, an integer of 0 or more.
However, the calculation formula of the final VTS is [final address of partition + 1]-[start address of final VTS].
[0016]
The size of each VTS calculated here is compared (ST5). The comparison formula is S_VTS (n) <S_VTS (m). Here, n = 0, 1, 2,..., That is, an integer of 0 or more, and m = 1, 2, 3,..., That is, an integer of 1 or more. When S_VTS (n) <S_VTS (m), n = m and m = m + 1 are set (ST6), and when S_VTS (n)> S_VTS (m), m = m + 1 is set (ST7). ), and compares S T 6 to VTS (m) is the last VTS. If VTS (m) becomes the final VTS (YES in ST8), it is determined that VTS (n) of the size S_VTS (n) at that time is the maximum size VTS (ST9).
[0017]
The system control unit 21 automatically resumes playback for the maximum size VTS determined in S5 (S6), and ends the process (S7).
[0018]
FIG. 4 is a block diagram showing the configuration of the second embodiment of the recording medium reproducing apparatus of the present invention. The difference from the configuration shown in FIG. 1 of the first embodiment is that a disk storage section 30 for storing a plurality of disks and a disk transport section 31 for transporting the disks from the disk storage section are provided. In addition, about the part which is common in the structure shown in FIG. 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.
[0019]
Disks 1a to 1g such as DVDs used as recording media are stored in a disk storage unit 30, and a disk to be reproduced is transported by a disk transport unit 31 (arrows Ca to Cg, arrow B). It is attached to. The disc that has been reproduced is transported by the disc transport unit 31 (arrow B, arrows Ca to Cg) and stored in the disc storage unit 30.
[0020]
The disk transport unit 31 is controlled by the system control unit 21. The discs 1a to 1g to be reproduced are selected by the user through a selection operation from the operation unit 18 or an automatic selection operation by the system control unit 21.
[0021]
FIG. 5 is a flowchart showing the operation of the recording medium playback apparatus of the second embodiment, and shows the processing operation for continuous playback of a plurality of disks.
After the user sets a disk to be reproduced in the disk storage unit 30, the automatic reproduction process is started (SS1), n = 1 is set (SS2), and the n (= 1) th disk 1a is the disk transport unit. The volume structure information and the file structure information of the disk 1a are reproduced and acquired by the system control unit 21 (SS3).
The system control unit 21 starts playback of the disc 1a according to the playback procedure specified in advance in the file structure information (SS4), and pauses the playback operation when the menu screen is output to the terminal 16 (SS5).
[0022]
Here, the size of the content information is determined (SS6). The size determination processing is performed in accordance with the processing operation of the flowchart shown in FIG. 3 in the first embodiment. The system control unit 21 resumes playback for the VTS having the maximum size determined in S5 (SS7).
[0023]
When the reproduction of the disk 1a is completed (SS8), the system control unit 21 determines whether there is a disk to be reproduced next (SS9), and if there is (YES in SS9), n = n + 1 (therefore, n = here. 2) is set (SS10), the disk 1a is stored in the disk storage section 30 by the disk transport section 31, and the disk 1b to be reproduced second is mounted on the spindle motor 6, and the process returns to SS3 to reproduce the disk. Do.
In this way, until there are no more discs to be played next (NO in SS9), the discs are sequentially replaced and played continuously, and then the process ends (SS11).
[0024]
In the automatic playback operation, when selecting and playing an item on the menu screen, the selection operation is valid if the user performs a selection operation within the time preset in the system control section when the menu screen is displayed. In the case where the manual regeneration is performed, and the selection operation is not performed after the time has elapsed, the automatic regeneration according to the present embodiment may be performed.
[0025]
In the present embodiment, the menu screen is displayed even in the automatic reproduction operation. However, the menu screen may be displayed in the automatic reproduction operation. In the case where the menu screen is not displayed and the item selection on the menu screen is required, the automatic playback is interrupted by the operation from the operation unit 18, the menu screen is displayed, and the selection operation is accepted. You can also
[0026]
In the present embodiment, the maximum size content information is reproduced, but a plurality of content information on the disc may be reproduced in order from the largest size. When implemented in this manner, if the disc is a disc on which a movie is recorded, first, the main part of the movie is preferentially reproduced as content information, and then other content information recorded on the disc, which is an explanation of the movie, Character introductions can be automatically played back sequentially.
[0027]
【The invention's effect】
According to the recording medium reproducing apparatus of the present invention, it is not necessary to perform a selection operation on the menu screen every time a recording medium on which content information such as a movie is recorded is reproduced, and the reproduction can be automatically started.
According to the recording medium reproducing apparatus of the present invention, when a plurality of recording media are reproduced, it is not necessary to perform a selection operation on the menu screen every time the recording medium is exchanged, and it is possible to reproduce automatically and continuously.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a first embodiment of a recording medium playback apparatus of the present invention.
FIG. 2 is a flowchart showing the operation of the recording medium playback apparatus of the first embodiment.
FIG. 3 is a flowchart showing the operation of the recording medium playback apparatus of the first embodiment.
FIG. 4 is a block diagram showing a configuration of a second embodiment of the recording medium playback apparatus of the present invention.
FIG. 5 is a flowchart showing the operation of the recording medium playback apparatus of the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Disk 2 ... Optical pick-up 3 ... RF amplifier 4 ... Servo processor 5 ... Slide motor 6 ... Spindle motor 7 ... Decoder 8, 10 ... Memory 9 ... Audio video (AV) decoder 11 DA converter for audio (audio D / A)
13 ... DA converter for video (video D / A)
14 ... OSD
15 ... Video converters 12 and 16 ... Terminal 17 ... Display part 18 ... Operation part 19 ... External interface part 20 ... External storage device 21 ... System control part

Claims (3)

In a recording medium reproducing apparatus for reproducing a recording medium on which a plurality of content information is recorded, reproducing means for reproducing file structure information including content information and recording position information of a file constituting the content information from the recording medium, and the reproduction calculating means for calculating the data amount of the content information from the file structure information reproduced by means, said control data amount calculated by the calculating means Ru to start playing the playback unit selects the maximum content information A recording medium playback apparatus comprising control means for performing In a recording medium reproducing apparatus for reproducing a recording medium on which a plurality of content information is recorded, reproducing means for reproducing file structure information including content information and recording position information of a file constituting the content information from the recording medium, and the reproduction calculating means for calculating the data amount of the content information from the file structure information reproduced by means, the recording medium accommodating means for accommodating a plurality of recording media from a plurality of recording media accommodated in the recording medium accommodating unit comprising a recording medium conveying means you convey the first recording medium to the reproducing means, a control means for controlling the data amount calculated by said calculating means to start playback by up to the playback unit selects the content information, wherein the control unit Ru is reproduced in said reproducing means successively a plurality of recording media accommodated in the recording medium accommodating unit braking Recording medium reproducing apparatus according to claim to be the. 3. The recording medium reproducing apparatus according to claim 1, wherein the reproducing unit reproduces the menu screen information recorded on the recording medium and outputs the menu screen information reproduced by the reproducing unit to a display device. And a selection operation means for performing an operation of selecting an item based on the menu screen information, and the control means includes the selection operation means within a preset time after the display output means outputs the menu screen information. When the selection operation is performed by the operation unit, the reproducing unit reproduces the recording medium based on the selection operation result, and when the selection operation unit is not performed by the selection operation unit within a preset time, A recording medium playback apparatus, characterized in that content information having the maximum calculated data amount is selected and control is performed to cause the playback means to start playback.

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