JP4172678B2 - Disc player - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disc playback apparatus, and more particularly to a disc playback apparatus capable of playing back a disc including moving image such as a DVD video and continuing playback from a playback interruption position.
[0002]
[Prior art]
In recent years, DVD (digital versatile disk) has been attracting attention as a disk-type storage medium. This DVD has a diameter of 12cm and a thickness of 1.2mm. It has the same shape as a CD (compact disc), but it has a storage capacity of 4.7GB for single layer and 8.5GB for double layer by increasing the recording density. is doing. Also, various types of data are mixedly stored on the DVD by adopting the image data compression technique and the audio data compression technique based on MPEG2. The DVD disc contains video and audio sources such as movies and music karaoke, and the user can enjoy the audio and video by a disc device that reproduces these. There is also a disc playback device that can play different types of discs such as a CD audio, a video CD, a DVD video disc, and a DVD audio disc with a single playback device.
[0003]
Some conventional disk playback apparatuses have a continuous playback function that stores a position where playback of a disk is interrupted and performs subsequent playback from the playback interrupt position later. In particular, many of the on-board disk playback devices have this continuous playback function, and the playback interruption position is stored in response to turning off the ACC power supply (accessory power supply) of the vehicle, and the vehicle ACC is turned on later. At this time, the playback is continued from the stored playback interruption position.
[0004]
[Problems to be solved by the invention]
By the way, in the conventional continuous playback, when the disk device is turned on, playback automatically starts from the position where the previous playback was interrupted, so video playback is performed while the user is not yet ready to watch the video. I accidentally continued and missed the video immediately after playback. Depending on the source to be played back, the missed scene may be important with respect to the subsequent scene, and the user may not be able to grasp the content even if the playback is continued as it is. Therefore, when the user misses the video immediately after the continuous playback, the user has to operate the operation unit to return to the scene where the playback position is missed, which is troublesome.
[0005]
Also, when playing back a movie recorded on a DVD video or the like, the connection with the place where it was last played is often a concern. In some cases, it was not possible to grasp the connection between the previous and current stories. For this reason, the user has to perform an operation of returning the playback position to a position slightly before the position at which the previous playback was interrupted and confirming what the content has been so far, which is troublesome.
[0006]
In particular, in the case of a disk playback device mounted on a vehicle, there are many cases in which continuous playback is performed, and it is troublesome to perform an operation for returning the playback position as described above. The position that was played when the vehicle key was turned off is stored, and when the vehicle key is turned on next time, the playback is resumed from the stored playback interruption position. If the user immediately enters continuous playback when the user turns on the key and starts the playback, the user starts missing before preparing the posture for viewing the video, so the video immediately after the start of the continuous playback may be missed. It is good if the missed video is not very relevant to the story, but if it is an important video, the user must operate the operation unit to return the playback position to the missed scene. there were.
[0007]
In view of the above, an object of the present invention is to provide a disc playback apparatus that can perform continuous playback according to the user's will during continuous playback of a disc that includes video such as DVD video.
[0008]
[Means for Solving the Problems]
According to the present invention, there is provided a data playback means for reading a signal recorded on a disk and playing back an image and sound in a disk playback apparatus capable of playing back a disk including a moving image such as a DVD video disk, and a disk. Reproduction interruption position storage means for storing the reproduction interruption position of the disk when the power of the reproduction apparatus is turned off, and the reproduction interruption position stored in the reproduction interruption position storage means when the power of the disk reproduction apparatus is turned on. This is achieved by a disc playback apparatus including playback pause means for displaying a still image at a relevant playback position and stopping audio output, and pause release means for releasing the playback pause.
In other words, with the above configuration, when the disc playback device is turned on, a still image is confirmed by the playback pause at the playback interruption position when the disc playback device was previously turned off, and then the playback is continued. Can do.
[0009]
Further, according to the present invention, the playback pause means displays a still image at a playback position a predetermined time before the playback interruption position and stops audio output when the power of the disk playback device is turned on. This is achieved by a disc playback device.
That is, when the power of the disk playback device is turned on, it is possible to continue playback after displaying a still image with a playback pause at a playback position a predetermined time before the previous playback interruption position.
[0010]
Also, according to the present invention, the above-described problem is achieved by the disc playback device that releases the playback pause when a predetermined time has elapsed since the disc playback device was turned on.
That is, when the power of the disk playback device is turned on, a still image can be displayed for a predetermined time by the playback pause at the previous playback stop position, and then the playback can be automatically continued.
[0011]
In addition, according to the present invention, the above-described problem further includes a disc type discriminating unit that discriminates the disc type, and the reproduction pause unit is configured to reproduce a disc including a moving image based on a discrimination result of the disc discriminating unit. A disc playback apparatus which displays a still image at a playback position related to a playback interruption position stored in the playback interruption position storage means and stops audio output when the power of the disk playback apparatus is turned on. Achieved.
That is, it is possible to switch according to the type of the disc whether to continue playback immediately when the power of the disk device is turned on or to continue playback once in the playback pause state.
[0012]
In addition, according to the present invention, there is provided a data reproducing means for reading out a signal recorded on a disk and reproducing an image and sound in a disk reproducing apparatus capable of reproducing a disk including a moving image such as a DVD video disk. Disc type discriminating means for discriminating the disc type, reproduction interruption position storage means for storing the reproduction interruption position of the disc when the power of the disk reproducing device is turned off, and when the power of the disk reproducing device is turned on Based on the discriminating result of the disc type discriminating means, when playing a disc containing a moving image, playback is performed from a playback position a predetermined time before the playback interruption position, and when playing a disc not containing a moving image, the playback is performed. This is achieved by a disc reproducing apparatus having reproducing means for reproducing from the interruption position.
That is, according to the above, depending on the type of the disc to be played, when the disc playback device is turned on, playback is started from the previous playback stop position, or from a playback position a predetermined time before the playback stop position. You can automatically switch whether to play.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a disc reproducing apparatus to which the present invention is applied will be described.
(A) Contents of data recorded on DVD video
First, details of data recorded on a DVD video as a disk type recording medium will be described. FIG. 1 is a diagram showing the structure of a volume space of a DVD. As shown in the figure, the volume space of the DVD is composed of a volume file structure, a DVD-Video zone, and a DVD-Other zone from the inner periphery to the outer periphery of the DVD. Among these, the DVD-Video zone includes various data necessary for the reproduction operation. The DVD-Video zone includes a video manager (VMG) and one or more video title sets (VTS) corresponding to each title.
[0014]
FIG. 2 is a diagram illustrating a data structure of VMG. As shown in the figure, the VMG includes video manager information (VMGI), a VMG menu video object set (VMGM_VOBS), and a VMGI backup file (VMGI_BUP).
[0015]
VMGI is information related to VTS (for example, the number of VTSs, identification information of each VTS, storage location of each VTS in the DVD, etc.), display order of titles displayed in the title menu, a plurality of program chain information (PGCI), DVD Disc ID (DVD_ID) etc. for identifying. VMGM_VOBS is composed of one or more video objects (VOB). This VOB includes video data which is reproduction data when reproducing a menu screen (title menu screen) for selecting a title.
[0016]
FIG. 3 is a diagram illustrating a data structure of the VTS. As shown in the figure, the VTS is composed of video title set information (VTSI), VTS menu video object set (VTSM_VOBS), VTS title video object set (VTSTT_VOBS), and a VTSI backup file (VTSI_BUP). .
[0017]
The VTSI includes information on a title such as VTS_ID for identifying the title, one or more PGCIs, and the like. The VTSM_VOBS and VTSTT_VOBS are configured by one or more VOBs. This VOB includes reproduction data such as video data and audio data. Further, VOB_ID for identifying each VOB is included in VTSI.
[0018]
A program chain (PGC) which is a logical processing unit in the reproduction operation is composed of program chain information (PGCI) and one or a plurality of video objects (VOB). For example, a PGC is configured by one PGCI in VMGI and one or a plurality of VOBs in VMGM_VOBS. A PGC is configured by one PGCI in VTSI and one or a plurality of VOBs in VTSM_VOBS. Alternatively, it is composed of one PGCI in VTSI and one or more VOBs in VTSTT_VOBS.
[0019]
FIG. 4 is a diagram showing a data structure of VOBs constituting the above-described VMGM_VOBS, VTSM_VOBS, and VTSTT_VOBS. As shown in the figure, a VOB is composed of a plurality of cells, and each cell is composed of one or more video object units (VOBU). Each VOBU includes a navigation pack (NV_PCK), a video pack (V_PCK), a sub-picture pack (SP_PCK), and an audio pack (A_PCK).
[0020]
NV_PCK includes playback control information (PCI) and data search information (DSI). In the PCI and DSI, the position of the VOBU to be reproduced next, the data amount of the VOBU, the reproduction time, and the like are set. V_PCK, SP_PCK, and A_PCK are respectively a pack header, packet header, data-compressed video data, sub-picture data, and audio data (compressed) that include information such as the type of reproduction data (moving image, sub-picture, audio). Playback data). In order to perform continuous playback, the cell number and NV_PCK address at the time when playback is interrupted are stored, so that the next playback is instructed based on the cell number and NV_PCK address at the playback interrupt position. It becomes possible to continue playback from the playback interruption position. In addition, when playback is interrupted, system parameters and general parameters that are playback control information are stored separately from the cell number and NV_PCK address, and when subsequent playback is performed, based on the stored system parameters and general parameters. Perform playback.
[0021]
(B) First embodiment
FIG. 5 is a diagram showing the overall configuration of the DVD playback apparatus of the first embodiment to which the present invention is applied.
The DVD playback apparatus 100 shown in FIG. 1 includes a spindle motor 12, an optical pickup 14, a feed motor 16, and a servo control unit 18 for reading signals recorded on the DVD 10, and an RF amplifier for amplifying the read signals. 22, digital signal processing unit 24, four buffer RAMs 26, 34, 38, 42, stream separation unit 30, audio decoder 32, video decoder 36, sub-picture decoder 40, video processor 44, video encoder 46 and digital-analog A (D / A) converter 48, an operation unit 58 for a user to input various instructions, and a system controller 60 for controlling the entire DVD playback apparatus 100 are configured.
[0022]
The spindle motor 12 rotates the DVD 10 at a constant linear velocity. The optical pickup 14 detects data recorded on the DVD 10 and includes, for example, a semiconductor laser and a photodiode. The feed motor 16 moves the optical pickup 14 in the radial direction of the DVD 10.
[0023]
The servo control unit 18 drives the spindle motor 12 and the feed motor 16 described above, and moves an objective lens (not shown) built in the optical pickup 14 so that the focus position of the semiconductor laser is perpendicular to the recording surface of the DVD 10. Move horizontally and horizontally. The servo control unit 18 performs various servo (focus servo, tracking servo, rotation servo) control necessary for reading data from the DVD 10.
[0024]
The RF amplifier 22 amplifies an electric signal output from a photodiode built in the optical pickup 14, and outputs a track jump detection signal when a large amount of vibration or impact is applied to the DVD playback apparatus 100 to generate a track jump. It also has a function to do.
[0025]
The digital signal processing unit 24 converts the signal output from the RF amplifier 22 into digital data, and then performs signal demodulation processing (8-16 demodulation processing) and error correction processing according to the data format of the DVD 10, and the RAM 26. To store. Then, the digital signal processing unit 24 extracts the VOBU included in the data stored in the RAM 26 in accordance with an instruction from the system controller 60 and outputs the VOBU to the stream separation unit 30.
[0026]
The stream separation unit 30 analyzes the pack header constituting the VOBU output from the digital signal processing unit 24 in accordance with an instruction from the system controller 60, thereby performing audio pack (A_PCK), video pack (V_PCK), sub-picture. The pack (SP_PCK) and the navigation pack (NV_PCK) are separated, and the audio pack separated by the stream separation unit 30 is output to the audio decoder 32, the video pack is output to the video decoder 36, and the sub-picture pack is converted to the sub-picture pack. The navigation pack is output and transferred to the system controller 60.
[0027]
The audio decoder 32 performs a predetermined decoding process on the audio pack output from the stream separator 30 and outputs audio data. The video decoder 36 performs a predetermined decoding process on the video pack output from the stream separator 30 and outputs video data. The sub-picture decoder 40 performs a predetermined decoding process on the sub-picture pack output from the stream separation unit 30 and outputs sub-picture data.
[0028]
The video processor 44 generates image data obtained by synthesizing the video data output from the video decoder 36 and the sub-picture data output from the sub-picture decoder 40 in accordance with an instruction from the system controller 60, and outputs the generated image data to the video encoder 46. To do. For example, image data is generated by combining subtitle subpicture data output from the subpicture decoder 40 with video data output from the video decoder 36. The video encoder 46 converts the image data output from the video processor 44 into display video data.
[0029]
The D / A converter 48 converts the audio data output from the audio decoder 32 into an analog audio signal. By outputting the audio signal from, for example, a speaker (not shown), audio sound is reproduced.
[0030]
The operation unit 58 includes a playback key for giving a playback instruction for the title contents, a fast-forward key for giving a fast-forward playback instruction, a fast-rewind key for giving a fast-rewind playback instruction, up / down / left / right cursor keys, and a cursor on the display screen. Various operation keys such as a setting key for confirming the item at the position and a power switch for turning on / off the power of the disk playback device are provided. A signal corresponding to the operation state of the key is output to the system controller 60. The
[0031]
The system controller 60 controls all the functional blocks such as outputting various servo commands to the servo control unit 18 and outputting an image generation command corresponding to a user operation command to the video processor 44. Further, the system controller 60 receives and analyzes VMGI and VTSI included in the data output from the digital signal processing unit 24 and NV_PCK output from the stream separation unit 30, thereby reproducing the stream separation unit 30. Various controls necessary for the operation are performed.
[0032]
Further, as shown in FIG. 6, the system controller 60 stores the cell number currently being reproduced and the address of NV_PCK in the RAM 62 every predetermined time (for example, every second) during the reproduction operation, and for a predetermined time from the current reproduction position. The previous playback position (for example, 10 seconds) is held. Further, the playback operation is stopped in response to the user's playback interruption instruction (powering off the playback device), and the system controller 60 stores a plurality of data stored in the RAM 62 when the playback device is powered on next time by the user. The cell number and NV_PCK address relating to the predetermined playback position are read out from the playback position, and continuous playback is performed based on the read address. In addition, the stored contents of the RAM 62 are retained even when the power of the disk reproducing device is turned off by a backup power source (not shown). Further, by using a rewritable nonvolatile memory instead of the RAM 62, the address at the time of reproduction interruption may be held.
[0033]
FIG. 7 is a diagram showing an operation flow when the reproduction position during the disk reproduction operation is stored in the RAM 62. Here, it is assumed that the disc playback apparatus performs a normal playback operation. Based on the playback time information read from the DVD disc, the system controller 60 determines whether or not a predetermined time (1 second) has elapsed since the address of the previous playback position was recorded (step S101). If 1 second has not elapsed, the system waits until a predetermined time has elapsed.
[0034]
When 1 second has elapsed since the previous playback position was stored in step S101, the system controller 60 determines whether or not the playback position for a predetermined time (10 seconds) has been recorded in the RAM 62 (step S102). If the playback position for a predetermined time is not recorded, the current playback position (cell number, NV_PCK address) is stored in the next area in the RAM 62.
[0035]
If the playback position for a predetermined time is stored in step S102, the system controller 60 erases the oldest playback position stored in the RAM 62 and stores the current playback position (step S104).
[0036]
When the current playback position is stored in step 103 or step S104, the system controller 60 determines whether or not the user has operated the operating unit to turn off the playback or turn off the apparatus (step S105). ) If there is no reproduction interruption instruction, the process returns to step S101 to continue the processing.
[0037]
As described above, the system controller 60 updates and stores the cell number indicating the playback position up to a predetermined time before the current playback position and the address of NV_PCK in the RAM 62.
[0038]
When the next playback is performed in accordance with a user's instruction or the like next time, the system controller 60 is based on the oldest playback position information among a plurality of playback positions (cell number, NV_PCK address) stored in the RAM 62. Continue playback. In other words, the reproduction can be performed from a predetermined time before the position where the reproduction is interrupted.
[0039]
In addition, when performing continuous playback, the image at the playback interruption position is displayed as a still image and returned in the playback pause state, and playback operation is started in response to the user's pause release instruction, or the playback pause state is returned. It is also possible to automatically start the reproduction operation when there is no user operation for a predetermined time (for example, 10 seconds).
[0040]
FIG. 8 is a diagram showing an operation flow when continuing playback of the DVD playback apparatus of the first embodiment.
In the first embodiment, a DVD playback device mounted on a vehicle is assumed, and the power source of the DVD playback device is switched on / off in accordance with the on / off of a key of the vehicle. In addition, it is assumed that the reproduction position from the reproduction interruption position when the power of the DVD reproduction apparatus is turned off during reproduction to a predetermined time before is stored in the RAM 62. It is assumed that the playback is set to continue by turning on the power of the DVD playback apparatus.
[0041]
First, the system controller 60 determines whether or not the user has turned on the playback device by operating the operation unit 58 or turning on a vehicle key (not shown) (step S201). Then, it waits until the power of the playback device is turned on.
[0042]
When the power of the playback device is turned on in step S201, the system controller 60 sets the oldest playback position information among the plurality of playback position information stored in the RAM 62 (10 seconds before the playback position when the power was last turned off). (Playback position) is read out (step S202).
[0043]
Next, the system controller 60 reads the data from the DVD 10 based on the reproduction position information read out in step S202, displays a still image, and performs a reproduction pause for stopping audio output (step S203).
[0044]
Then, while performing this playback pause, the system controller 60 determines whether or not the user has issued a pause release instruction by operating the operation unit 58 (step S204). The controller 60 refers to a built-in clock (not shown) and determines whether or not the playback pause time has reached a predetermined time (for example, 10 seconds) (step S205). If the predetermined time has not been reached in step S205, the process returns to step S204 to continue the operation.
[0045]
If there is a playback pause cancel instruction in step S204, or if a predetermined time (10 seconds) has elapsed in step S205, the system controller 60 cancels the playback pause state and starts playback from the playback pause position ( Step S206).
[0046]
In this way, when the power of the disk playback device is turned on, playback can be performed from the playback position a predetermined time before the playback interruption position when the power was turned off last time. Also, a playback pause can be automatically performed when the power is turned on, and playback can be performed according to the user's will. Furthermore, when a predetermined time has elapsed in the playback pause state, playback can be automatically started without user operation.
[0047]
In the description of the above embodiment, the playback interruption position is stored when the power of the disk playback device is turned off, and the playback is performed a predetermined time before the playback interruption position when the power of the disk playback device is turned on next time. Although the playback pause is performed at the position, the playback pause may be performed at the playback interruption position when the power of the disk playback device is turned on.
[0048]
(C) Second embodiment
FIG. 9 is a diagram showing the configuration of the disc reproducing apparatus according to the second embodiment of the present invention. The disc playback apparatus in the second embodiment is a disc playback apparatus capable of playing back a plurality of types of discs having the same shape. For example, it can play back a plurality of types of discs such as CD audio, video CD, DVD video, and DVD audio. It is assumed that it is a disc playback device.
[0049]
In FIG. 9, 70 is a disk such as CD audio, video CD, DVD video, DVD audio, 72 is a system controller for controlling the entire disk reproducing apparatus, 74 is a disk data reading unit for reading data from the disk 70, and 76 is disk data. A reproduction unit that reproduces data input from the reading unit 74 into an audio signal or a video signal, and includes a CD reproduction unit 76a that reproduces a CD standard disc and a DVD reproduction unit 76b that reproduces a DVD standard disc. ing. Reference numeral 78 denotes an operation unit, and 80 denotes a RAM for storing a reproduction interruption position. The RAM 80 is supplied with backup power (not shown), and the stored contents of the RAM 80 are retained even when the power of the playback apparatus is turned off.
[0050]
The playback unit 76 switches the data input from the disc data reading unit 74 to the CD playback unit 76a or the DVD playback unit 76b according to the type of the disc, and plays back if the disc is a CD or a video CD. The CD playback unit 76a performs playback processing. If the disc is DVD video or DVD audio, the DVD playback unit 76b performs playback processing to output an audio signal or video signal.
[0051]
FIG. 10 is a diagram showing an operation flow of the second embodiment of the present invention. As in the first embodiment, it is assumed that the reproduction position from the reproduction interruption position to a predetermined time before (10 seconds before) is stored in the RAM 80 when the power is turned off.
[0052]
First, the system controller 72 determines whether or not the power of the disc playback device is turned on by a user operation (step S301), and waits until the power of the disc playback device is turned on.
[0053]
When the power of the disk playback device is turned on in step S301, the system controller 72 determines the type of the currently loaded disk (step S302). For example, disc type discrimination between a disc that is a CD standard and a disc that is a DVD standard is discriminated based on a difference in moving distance of an objective lens (not shown) due to a difference in distance from the disc surface to a signal recording surface, Discrimination between CD audio, which is a CD standard disc, and video CD is performed by reading CD type information recorded on the disc, and discrimination between DVD audio, DVD standard disc and DVD video, is also performed on the disc. This can be determined from the DVD type information.
[0054]
Next, the system controller 72 determines whether or not the disc includes a moving image according to the disc type determined in step S302 (step S303), and the loaded disc includes a moving image. In the case of a non-existing disc, for example, for CD audio and DVD audio, the latest playback position is read from the plurality of playback positions recorded in the RAM 80, and continuous playback is performed (step S304).
[0055]
In step S303, in the case of a disc including a moving image, such as a video CD or DVD video, the system controller 72 reproduces the playback position a predetermined time before (for example, 10 seconds before) the previous playback interruption position stored in the RAM 80. Is read from the disc and a playback pause is performed to display a still image (step S305).
[0056]
In the playback pause state, the system controller 72 determines whether or not the user has operated the operation unit 78 to give a pause release instruction (step S306). Then, with reference to a built-in clock (not shown), it is determined whether or not a reproduction pause time has passed a predetermined time (for example, 10 seconds) (step S307). If the predetermined time has not elapsed in step S307, the process returns to step S306 and continues.
[0057]
If there is a pause release instruction from the user in step S306, or if a predetermined time has elapsed in step S307, the system controller 72 releases the playback pause and starts normal playback from the playback pause position (step S308). .
[0058]
By doing the above, depending on the type of disc, the playback pause is performed at a playback position slightly before the playback interruption position in the case of a disc containing a moving image, and the playback interruption position in the case of a disc with only audio. It can be automatically switched to continue playback from the beginning. Further, when a predetermined time elapses during the playback pause, the pause can be automatically canceled and playback can be started.
[0059]
In the description of the above embodiment, a playback position is stored for a predetermined time every predetermined time (every second) during playback of the disc, and a plurality of playbacks stored at the time of subsequent playback of the disc including video are stored. Playback was started from the oldest playback position among the positions, but the playback interruption position is stored when playback is interrupted, and the playback position that is a predetermined time before the stored playback interruption position is calculated during subsequent playback. It may be.
[0060]
In the description of the above embodiment, when the power of the disk playback device is turned on, a playback pause is performed at a playback position a predetermined time before the playback interruption position, and the playback pause is canceled when a user instruction or a predetermined time elapses. However, it is also possible to automatically perform disk playback from a playback position a predetermined time before the playback interruption position when the power of the disk playback device is turned on.
[0061]
In the description of the first embodiment and the second embodiment, the user operates the operation unit to turn on / off the power of the playback device. Needless to say, the power supply of the playback device may be switched on / off by turning on / off the main key of the vehicle.
[0062]
In the description of the above embodiment, the cell number and the NV_PCK address are described as data to be stored when playback is interrupted. However, system parameters, general parameters, etc., which are playback control information when playback is interrupted, are stored together. Needless to say, playback is performed in the disc playback state at the time of playback interruption based on the system parameters and general parameters stored at the time of subsequent playback.
[0063]
The present invention has been described with reference to the embodiments. However, the present invention can be variously modified in accordance with the gist of the present invention described in the claims, and the present invention does not exclude these.
[0064]
【The invention's effect】
As described above, according to the present invention, the playback interruption position when the power of the disk playback device is turned off is stored, and the playback pause is performed at the position where the playback was previously stopped when the power of the playback device is turned on next time. Since the playback is performed after the playback pause release instruction is issued, the playback can be continued after confirming the still image at the previous playback interruption position. In addition, since the playback is started after the user issues the playback pause release instruction, it is convenient that the video immediately after the playback is not inadvertently missed. In particular, if the present invention is applied to a playback device mounted on a vehicle, it is convenient because it is possible to continue playback after preparing the posture for viewing the screen after getting on the vehicle.
[0065]
Also, according to the present invention, when the power of the disk device is turned on, the playback pause is performed at the previous playback interruption position, and the playback pause is automatically canceled after the predetermined time has elapsed, and the subsequent playback is performed. Then, after confirming the still image at the reproduction interruption position, the user can perform continuous reproduction without giving an instruction to cancel the pause, and the user's trouble can be reduced.
[0066]
In addition, when the disc player is turned on, the disc is played from the playback position that is a predetermined time before the previous playback interruption position, so it is possible to easily grasp the connection with the previous playback video. it can.
[0067]
Further, according to the present invention, according to the type of the disc, when the disc including the moving image is continuously played, the playback is continued from the playback position a predetermined time before the playback interruption position, and when the disc containing only the audio is played back, the playback is performed. Since continuous playback is performed from the interruption position, the continuous playback start position can be automatically switched according to the type of the disc, which is convenient.
[Brief description of the drawings]
FIG. 1 is a diagram showing the structure of a volume space of a DVD.
FIG. 2 is a diagram illustrating a data structure of VMG.
FIG. 3 is a diagram illustrating a data structure of a VTS.
FIG. 4 is a diagram illustrating a data structure of a VOB.
FIG. 5 is a diagram showing a configuration of a DVD playback apparatus according to the first embodiment.
6 is a diagram illustrating an example of a reproduction position recorded in a RAM 60. FIG.
FIG. 7 is a diagram showing an operation flow when recording a reproduction position.
FIG. 8 is a diagram showing an operation flow during continuous playback of the DVD playback apparatus of the first embodiment.
FIG. 9 is a diagram showing a configuration of a disc playback apparatus of a second embodiment.
FIG. 10 is a diagram showing an operation flow at the time of continuous playback of the disc playback apparatus of the second embodiment.
[Explanation of symbols]
10 ... DVD
18 ... Servo control section
24 ... Digital signal processing unit
58, 78 ... operation unit
60, 72 ... System controller
62, 80 ... RAM

Claims (4)

  In a disc playback device capable of playing back a disc containing a moving image such as a DVD video disc, when data is turned off by reading out signals recorded on the disc and playing back images and sound, and when the disc playback device is turned off. A reproduction interruption position storage means for storing the reproduction interruption position of the disc, and a still image of the reproduction position related to the reproduction interruption position stored in the reproduction interruption position storage means when the power of the disk reproduction device is turned on. And a playback pause means for stopping audio output and a pause release means for releasing the playback pause.   2. The reproduction pause unit according to claim 1, wherein the reproduction pause means displays a still image at a reproduction position a predetermined time before the reproduction interruption position and stops audio output when the power of the disk reproduction apparatus is turned on. Disc playback device.   3. The disc playback apparatus according to claim 1, wherein the playback pause canceling unit cancels the playback pause when a predetermined time elapses after the power of the disc playback apparatus is turned on.   A disc type discriminating unit for discriminating a disc type, wherein the playback pause unit is based on a discrimination result of the disc discriminating unit when the disc playback device is turned on during playback of a disc containing a moving image; 2. The disc reproducing apparatus according to claim 1, wherein a still image at a reproduction position related to the reproduction interruption position stored in the reproduction interruption position storage means is displayed and the audio output is stopped.

Images