JP2000311420A - Disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk player capable of performing a reproducing operation from a stopping position easily. SOLUTION: When a title reproduction is stopped or temporarily stopped, a system controller 60 generates a stopping position specifying data for specifying a stopping position and stores the data in a RAM 62. The controller 60 performs a control for displaying a stopping position menu screen including stopping position-related information and also performs a control for starting the reproducing operation of pictures and sounds from a stopping position on the basis of the stopping position specifying data when any information of displayed stopping position-related information is selected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk reproducing apparatus for reproducing digital versatile disks (DVDs).

[0002]

2. Description of the Related Art Recently, DVDs have been used as disc-type recording media.
Is attracting attention. This DVD has a diameter of 12 cm and a thickness of 1.2 mm, and has the same shape as a CD (compact disk), but has a storage capacity of 4.7 GB in a single layer and 8.5 GB in a two layer by increasing the recording density. Has been realized.

In addition, various types of data are mixedly stored in the DVD by employing image data compression technology and audio data compression technology based on MPEG2, and control data for realizing various functions is stored in the DVD. Is stored. When a movie is recorded on a DVD, video data and audio data are usually stored.
For example, by storing subtitle data in a plurality of languages in addition to the above, it is possible to display subtitles in a language selected by the user. Also, by storing still image data such as profiles of movie directors and performers,
These contents can be displayed by the operation of the user. Further, a function (pre-stop function) of restarting the reproduction from the stop position when the reproduction operation is temporarily stopped and thereafter resumed can also be realized. The DVD reproducing device reads various data from the DVD and performs an operation to realize these various functions.

[0004]

The above-mentioned conventional DVD described above
The pre-stop function in the reproducing apparatus is such that the optical pickup for detecting data recorded on the DVD is kept at the position where the reproducing operation is stopped, and the stop position is immediately set when the restart of the reproducing operation is instructed. This is realized by starting the reproducing operation from.

However, when the reproducing operation is completely stopped and the power is turned off, the optical pickup is returned to the original position (for example, the position for reading the data recorded on the innermost circumference of the DVD). Therefore, in such a case, in order to restart the reproduction operation from the stop position, the user needs to use the DV.
It is necessary to send various instructions such as playback, fast forward, and rewind to the D playback device to search for the stop position, and the operation becomes complicated, and it is not easy to perform the playback operation from the stop position. Was.

[0006] The present invention has been made in view of the above points, and an object of the present invention is to provide a disk reproducing apparatus capable of easily performing a reproducing operation from a stop position.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a disk reproducing apparatus according to the present invention, when reproducing operation of an image and a sound recorded on a disk-type recording medium is stopped, The stop position specifying data including at least the identification information of the loaded disk type recording medium and the reproduction position at stop is generated and stored by the specific data generating and storing means, and the one or more stop position specifying data is stored in the stop position specifying data. Based on the selection menu display means, a selection menu including information for specifying the disk-type recording medium and a playback position at stop is displayed. Then, when the user selects one of the stop playback portions included in the selection menu, and when the corresponding disc-type recording medium is loaded, the selected stop playback portion starts from the selected stop playback portion. Playback of images and sounds is performed. Therefore, the user can specify the desired disc-type recording medium to be reproduced from the recorded stop position and the desired stop position while looking at the selection menu, and can start from the specific stop position of the specific disc-type recording medium. It becomes easy to perform the reproducing operation.

[0008] The above-mentioned selection menu display means includes:
When displaying the selection menu, it is desirable to highlight and display at least a part of the display area corresponding to the disk type recording medium loaded at that time. When there are a plurality of disk-type recording media for which the stop position specifying data is generated, it is easy to confirm the actually loaded disk-type recording medium, and the selection item corresponding to the disk-type recording medium that is not loaded is changed. It is possible to prevent a wrong selection.

It is preferable that the apparatus further comprises comment input means for inputting a predetermined comment corresponding to any one of the stop position specifying data when the above-mentioned selection menu is displayed. In the case where stop position specifying data corresponding to the same disk type recording medium is generated,
Although it is difficult to distinguish them from each other, if a comment can be added corresponding to each stop position specifying data, such inconvenience will be eliminated, and the user can surely start from a specific stop position of a desired disk type recording medium. The reproduction operation can be performed continuously.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a DVD reproducing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

(1) Contents of Data Recorded on DVD First, details of data recorded on a DVD as a disk-type recording medium will be described. FIG. 1 is a diagram showing a structure of a volume space of a DVD. As shown in the figure,
The volume space of a DVD has a volume / file structure, DVD-Video, from the inner circumference to the outer circumference of the DVD.
o zone and DVD other zone. Among these, the DVD-Video zone contains various data necessary for the reproducing operation. D
The VD-Video zone is a video manager (VM
G) and one or more video title sets (VTS) corresponding to each title.

FIG. 2 is a diagram showing a data structure of the VMG. As shown in the figure, the VMG is composed of video manager information (VMGI), a video object set for VMG menu (VMGM_VOBS), and a VMGI backup file (VMGI_BUP).

[0013] VMGI is information on VTS (VTS).
Number, VTS number for identifying each VTS, storage location of each VTS in DVD, etc.), display order of titles displayed in the title menu, one or more program chain information (PGCI), and DVD identification Disk I for
D (DVD_ID), disc name (for example, movie title)
Etc. are included. VMGM_VOBS is composed of one or more video objects (VOB). This VOB includes video data that is playback data when a menu screen (title menu screen) for selecting a title is played.

FIG. 3 is a diagram showing a data structure of the VTS. As shown in the figure, VTS includes video title set information (VTSI), VTS menu video object set (VTSM_VOBS), VTS title video object set (VTSTT_VOBS),
VTSI backup file (VTSI_BU
P).

VTSI is information about a title, VT
A PTT number for identifying each chapter (PTT) in S, one or more PGCIs, and the like are included. VTSM_
VOBS and VTSTT_VOBS are one or more V
It is composed of OB. This VOB includes reproduction data such as video data and audio data.

The reproduction data of the title is VTSTT_V
VOBs # 1 to #i in the OBS. A chapter is a unit obtained by dividing a title, and the playback data of the chapter is one or a plurality of Vs in VTSTT_VOBS.
Included in OB. For example, as shown in FIG. 3, the title is divided into chapters # 1 to #p,
Are contained in VOBs # 1 to # 3, and the reproduction data of chapter # 2 are contained in VOBs # 4 and # 5.

FIG. 4 shows the above-mentioned VMGM_VOBS, V
V included in TSM_VOBS, VTSTT_VOBS
It is a figure showing the data structure of OB. As shown in the figure,
VOB is composed of a plurality of cells. Each cell includes a plurality of video object units (V
OBU). Each VOBU includes a navigation pack (NV_PCK), a video pack (V_PCK), and a sub-picture pack (SP_PCK).
And at least one of audio packs (A_PCK)
It is comprised including one.

NV_PCK contains reproduction control information (PC
I) and data search information (DSI). In the PCI and DSI, information such as the data amount of the VOBU, the reproduction time from the start of reproduction of the title to the start of reproduction of the corresponding VOBU, the position of the VOBU to be reproduced next, and the like are set.

V_PCK, SP_PCK, A_PCK
Indicates the type of playback data (video, sub-picture,
Pack header and packet header that contain information such as audio), compressed video data, sub-picture data, and audio data (compressed playback data)
It is comprised including.

When the image data compression technique by MPEG2 is adopted, a GOP (Group Of Pictures) is constituted by all video packs in one VOBU. This GOP includes image data corresponding to a reproduction time of about 0.5 seconds. Specifically, the GOP includes image data corresponding to at least one I picture (intra-frame coded image) and a plurality of P pictures (inter-frame forward prediction coded images) periodically inserted. Image data, and image data corresponding to a plurality of B pictures (bidirectional predictive coded images) inserted between an I picture and a P picture or between two P pictures.

A program chain (PGC), which is a logical reproduction unit in the reproduction operation, is composed of program chain information (PGCI) and a plurality of cells included in one or a plurality of VOBs. For example, a PGC is configured by one PGCI in the VMGI and a cell included in the VOB in the VMGM_VOBS. VTS
One PGCI in I and VOB in VTSM_VOBS
Constitutes a PGC. Alternatively, one PGCI in VTSI and VTSTT_VOB
PGC is constituted by cells included in the VOB in S.

PGCI and VMGM_VOB in VMGI
PGC composed of cells included in the VOB in S
Is for displaying a title menu and specifying a reproduction position of the corresponding data when any item in the title menu is selected.
Also, a PGC constituted by a cell included in a PGCI in the VTSI and a VOB in the VTSTT_VOBS is:
When any item in the title menu is selected, various data necessary for reproducing the corresponding content are included.

FIG. 5 is a diagram showing an example of the structure of the PGC, and shows the structure of the PGC constituted by the cells included in the PGCI in the VTSI and the VOB in the VTSTT_VOBS. As shown in FIG.
1 is PGCI # 1 in VTSI and VTSTT_VOB
It is composed of cells included in VOBs # 1 to # 3 in S. PGC # 2 is the PGCI in VTSI.
# 2 and cells included in VOBs # 4 and # 5 in VTSTT_VOBS. These PGCs
Is specified by the PGC number. The PGC number is determined according to the storage order of the PGCI in the VMGI. For example, in the PGC shown in FIG.
PGCs are stored in the order of PGCI # 1 and PGCI # 2.
The PGC number of # 1 is “1”, and the PGC number of PGC # 2 including PGCI # 2 is “2”.

The PGCI and VMGM_ in the VMGI
PGC composed of cells in VOB of VOBS
Or VO of PGCI and VTSM_VOBS in VTSI
The PGC constituted by the cells in B has the same structure as the PGC shown in FIG. The PGCI includes a reproduction order of a plurality of corresponding VOBs, information on a PGC to be reproduced next, and the like.

The navigation commands executed during the reproduction operation include a button command (BTN_CMD) executed in response to a user's operation instruction, a pre-command (PRE_CMD) executed before the start of PGC reproduction, and a PG.
There are a cell command (C_CMD) that is executed each time the reproduction of one cell in C ends, and a post command (POST_CMD) that is executed after the reproduction of PGC ends. Among these, BTN_CMD is included in the above-mentioned PCI, and PRE_CMD, C_CMD, POST_CM
D is included in the PGCI described above.

When executing a navigation command, navigation parameters are used as variables. The navigation parameters include a system parameter (SPRM) and a general parameter (GPRM), and respective storage areas are provided inside the DVD playback device. SPRM and GPRM are set or updated in accordance with the execution of the navigation command, and are used as variables when the subsequent navigation command is executed.

(2) Overall Configuration of DVD Playback Apparatus FIG. 6 is a diagram showing an overall configuration of a DVD playback apparatus according to an embodiment to which the present invention is applied. The DVD reproducing 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 amplifies the read signals to perform image display and the like. RF amplifier 22 for outputting audio, digital signal processing unit 24, four buffer RAMs 26, 34, 38 and 42, stream separation unit 3
0, audio decoder 32, video decoder 36, sub-picture decoder 40, video processor 44, video encoder 46, display device 47, digital
An analog (D / A) converter 48 and a speaker 49;
An operation unit 58 for the user to input various operation instructions
And a system controller 60 for controlling the whole of the DVD reproducing apparatus 100 and a RAM 62.

The spindle motor 12 rotates the DVD 10 at a constant linear speed. The optical pickup 14 is a DV
It detects data recorded in D10, 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.

The servo controller 18 responds to an instruction from the system controller 60 to operate the spindle motor 12 described above.
By driving the feed motor 16 and moving an objective lens (not shown) incorporated in the optical pickup 14, the focal position of the semiconductor laser is moved in the vertical and horizontal directions with respect to the recording surface of the DVD 10. In addition, the servo control unit 18 performs various servo (focus servo, tracking servo, and rotation servo) controls necessary for reading data from the DVD 10.

The RF amplifier 22 amplifies an electric signal output from a photodiode incorporated in the optical pickup 14. When a large jump or shock is applied to the DVD reproducing apparatus 100 to cause a track jump, the track jump occurs. It also has a function of outputting a detection signal.

The digital signal processing unit 24 includes the RF amplifier 2
2 is converted into digital data and then subjected to signal demodulation processing (8-16 demodulation processing) and error correction processing in accordance with the data format of the DVD 10,
It is stored in the RAM 26. And the digital signal processing unit 2
4 is an RA in response to an instruction from the system controller 60.
VMGI and VTSI are extracted from the data stored in M26 and output to the system controller 60.
The OBU is extracted and output to the stream separation unit 30.

The stream separating unit 30 analyzes the pack headers constituting the VOBU output from the digital signal processing unit 24 in accordance with the instruction of the system controller 60, thereby obtaining an audio pack (A_PCK) and a video pack (V_PCK). , Sub-picture pack (SP_
PCK) and the navigation pack (NV_PCK). 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, the sub-picture pack is output to the sub-picture decoder 40, and the navigation pack is transferred to the system controller 60. .

[0033] The audio decoder 32 performs a predetermined decoding process on the audio pack output from the stream separation unit 30, and outputs audio data.
The video decoder 36 performs a predetermined decoding process on the video pack output from the stream separation unit 30, and outputs video data. When the image data compression technology based on MPEG2 is adopted, the video decoder 36
Are image data corresponding to I pictures included in a plurality of video packs output from the stream separation unit 30,
Based on image data corresponding to a picture and image data corresponding to a B picture, three types of video data of an I picture, a P picture, and a B picture are generated and output. 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.

The video processor 44 generates image data in which the video data output from the video decoder 36 and the sub-picture data output from the sub-picture decoder 40 are synthesized in accordance with an instruction from the system controller 60. Output to 46. The video encoder 46 converts the image data output from the video processor 44 into an image signal for display. By outputting this image signal to the display device 47,
The image is displayed.

The D / A converter 48 converts audio data output from the audio decoder 32 into an analog audio signal. When this audio signal is output to the speaker 49, the audio sound is reproduced.

The operation unit 58 includes a playback key for giving a title playback instruction, a stop key for giving an instruction for stopping title playback, a pause key for giving an instruction to pause title playback, and a playback operation stopped. A stop position recording key for giving an instruction to record a position, a stop position menu screen display key for giving an instruction to display a later-described stop position menu screen, a cursor key on the left, right, up and down, and an item at a cursor position on the display screen There are provided various operation keys such as a setting key for confirming the operation, and a signal corresponding to the operation state of the key is output to the system controller 60.

The system controller 60 controls all functional blocks, such as outputting various servo commands to the servo controller 18 and outputting an image generation instruction corresponding to a user's operation instruction to the video processor 44. In particular,
The system controller 60 includes the digital signal processing unit 24
VMGI, VTSI included in the data output from
By receiving the NV_PCKs output from the stream separation unit 30 and executing the navigation commands included in the NV_PCKs, various servo commands are output to the servo control unit 18 and an image generation instruction according to a user's operation instruction is issued. To the video processor 44 to perform various controls necessary for the reproduction operation. Further, the system controller 60 sets or updates the SPRM and GPRM in response to the execution of the navigation command by using the built-in memory (not shown) as a storage area for the navigation parameters (SPRM and GPRM), and performs subsequent navigation. Used as a variable when executing a command.

Further, the system controller 60 determines the position (hereinafter, referred to as the position at which the reproduction operation is stopped by the user pressing the stop position recording key of the operation unit 58 during the reproduction of the title.
When the user instructs to record the “stop position” and further presses the stop key or the pause key of the operation unit 58 to stop or pause the reproduction operation, the stop position is specified. Then, stop position specifying data for generating the stop position is generated and stored in the RAM 62. The RAM 6
Reference numeral 2 denotes a non-volatile memory, which retains the stored stop position specifying data as it is even when the power of the DVD reproducing apparatus 10 is turned off.

FIG. 7 is a diagram showing an example of the stop position specifying data. As shown in FIG.
The date of data generation, the disk name of the DVD 10 loaded in the DVD playback device 100, the VTS number of the VTS corresponding to the title being played at the time of stopping, and the chapter corresponding to the chapter being played at the time of stopping. PTT number,
The playback time (stop position time) from the start of playback of the title to the stop position is configured. The date of data generation is set based on a clock (not shown) built in the DVD playback device 100. DVD1
The disc name as the identification information of “0” includes the VMG described above.
The disk name included in I is set. In addition, the VTS of the VTS corresponding to the title being reproduced at the time of the stop
The number is set to a corresponding one of the VTS numbers included in the above-mentioned VMGI. The PTT number corresponding to the chapter being reproduced at the time of the stop is set to the PTT number corresponding to the PTT number in the VTSI. The stop position time is used to specify a playback position at the time of stop.
The “reproduction time from the start of reproduction of a title to the start of reproduction of the corresponding VOBU” included in the PCI or DSI of the PCK is the time from the start of reproduction of the VOBU to the stop of the reproduction operation. The added time is set.

When the user presses the stop position menu screen display key of the operation unit 58, the system controller 60 reads out all stop position specifying data from the RAM 62, and reads various stop position specifying data related to each stop position. Control is performed to display a stop position menu screen as a selection menu including information (stop position related information).

The user operates the cursor key of the operation unit 58 to move the cursor to any one of the stop position related information displayed on the stop position menu screen.
Further, when the setting key is pressed and the selection state of the stop position related information is determined, the system controller 60 sets the DVD 10 corresponding to the selected stop position to the DVD playback device 1.
It is determined whether it is loaded in 00 or not. When the DVD 10 corresponding to the selected stop position is loaded in the DVD reproducing device 100, the system controller 60 sends various servo commands to the servo control unit 18 based on the corresponding stop position specifying data. For example, output of an image or an image generation instruction to the video processor 44 is controlled to start reproduction of an image or sound from the selected stop position.

The whole of the above-mentioned DVD reproducing apparatus 100 is used as data reproducing means by the system controller 60 and the RAM 6.
2 is a specific data generation / storage unit, the system controller 60, the video processor 44, and the video encoder 46 are selection menu display units, and the system controller 60,
The operation unit 58 corresponds to the comment input unit.

(3) Operation of DVD Reproducing Apparatus Next, the operation of the above-described DVD reproducing apparatus 100 will be described. FIG. 8 is a flowchart showing an operation procedure of generating the stop position specifying data by the DVD reproducing apparatus 100. When the power is turned on, the system controller 60 determines whether or not the DVD 10 has been loaded by the user (step 100). When the DVD 10 is loaded, the system controller 60 displays the opening screen for a predetermined time (step 101), and then displays the title menu screen (step 102). For example, a VOB corresponding to the opening screen is read based on the PGCI included in the VMG, and a predetermined opening screen is displayed. Also, since the reproduction position of the title menu displayed next to the opening screen can be specified based on PGCI_UT (program chain information unit table) in VMGI, the display operation of the title menu is started.

Next, the system controller 60 determines whether a title has been selected (step 10).
3). When the user operates the cursor key of the operation unit 58 to move the cursor to the title displayed in the title menu and further presses the setting key to confirm the title selection, the system controller 60 sets the selected title. To start the reproduction of the data (step 104).

When the reproduction of the title is started, next, the system controller 60 determines whether or not an instruction to record the stop position has been issued (step 105). When the stop position recording key of the operation unit 58 is pressed by the user to give an instruction to record the stop position, the system controller 60 determines whether or not the reproduction of the title has been completed (step 106). When the reproduction of the title ends, a series of operations ends.

If the reproduction of the title has not been completed, the system controller 60 determines whether or not the reproduction of the title has been instructed within a predetermined time after the instruction to record the stop position has been issued. Judgment (Step 10
7). When the user presses the stop key of the operation unit 58 and instructs to stop the title playback within a predetermined time after the instruction to record the stop position is issued, the system controller 60 stops the title playback. Control is performed (step 108). And the system controller 6
0 generates stop position specifying data corresponding to the stop position and stores it in the RAM 62 (step 109).

If the instruction to stop the reproduction of the title is not issued within a predetermined period of time after the instruction to record the stop position has been issued (if a negative determination is made in step 107), the system controller 60 stops the playback. It is determined whether or not an instruction to pause reproduction of the title has been issued within a predetermined time after the instruction to record the position has been issued (step 11).
0).

When the user presses the pause key of the operation unit 58 and instructs to pause the title reproduction within a predetermined time after the instruction to record the stop position is issued, the system controller 60 Control for temporarily stopping the reproduction of the title is performed (step 111). Then, the system controller 60 generates stop position specifying data corresponding to the stop position and stores the stop position specifying data in the RAM 62 (step 112).

Next, the system controller 60 determines whether or not the user has pressed the play key of the operation unit 58 and instructed to resume title playback (step 1).
13). When the restart of the title playback is instructed, the system controller 60 performs control for restarting the title playback (step 114), and then determines again whether or not an instruction to record the stop position has been issued (step 114). Step 10
5) The subsequent operation is repeated.

If no instruction to pause the reproduction of the title has been given within a predetermined time after the instruction to record the stop position has been given (if a negative determination is made in step 110)
Next, the system controller 60 determines again whether or not an instruction to record the stop position has been issued (step 105).
The subsequent operation is repeated.

When the instruction to record the stop position is not given (when a negative determination is made in step 105),
The system controller 60 determines whether the reproduction of the title has been completed (step 115). When the reproduction of the title ends, a series of operations ends. Also,
If the reproduction of the title has not been completed, the system controller 60 repeats the operation after determining whether or not an instruction to record the stop position has been issued (step 105). By such an operation, stop position specifying data is generated and stored in the RAM 62.

FIG. 9 is a flowchart showing the operation procedure of displaying the stop position menu screen and reproducing from the stop position.
The system controller 60 determines whether the stop position menu screen display key of the operation unit 58 has been pressed and an instruction to display the stop position menu screen has been issued (step 20).
0). Note that this determination processing is performed in parallel with the normal image and audio reproduction operation.

When the display of the stop position menu screen is instructed, the system controller 60 reads out all the stop position specifying data from the RAM 62 and performs control for displaying the stop position menu screen (step 20).
1).

Specifically, the system controller 60
Reads out all the stop position specifying data from the RAM 62 and generates the data generation date, disk name, VTS number (title number), P
An instruction to display the TT number (chapter number) and the stop position time is output to the video processor 44.

At that time, the system controller 60 determines whether or not the DVD 10 is loaded in the DVD reproducing apparatus 100. If the DVD 10 is loaded, the D
The disk name in the VMGI read from the VD 10 is analyzed to determine whether the disk name is included in any of the stop position specifying data, that is, whether the loaded D
It is determined whether or not there is a stop position corresponding to VD10.
If there is a stop position corresponding to the loaded DVD 10, the system controller 60 outputs to the video processor 44 an instruction to emphasize the corresponding display in the stop position menu screen.

Further, if the user has created a comment on the stop position (for example, the name of the person who issued the stop instruction), the system controller 60 adds the data included in each stop position specifying data to the stop position specifying data. An instruction to display the comment is output to the video processor. The comment is created, for example, by selecting a character from the list of the Japanese syllabary displayed on the display device 47 by a user's instruction by operating the cursor key and the setting key of the operation unit 58, and creating the comment in the RAM 62. The stop timing is not necessarily the time when each stop position specifying data is created, and only a comment may be added later.

The video processor 44 generates image data of the stop position menu screen according to the instruction sent from the system controller 60, and
6 is output. The video encoder 46 converts the image data output from the video processor 44 into an image signal for display. By outputting this image signal to the display device 47, a stop position menu screen is displayed.

FIG. 10 is a view showing a display example of the stop position menu screen. As shown in the figure, on the stop position menu screen, stop position related information including items in the stop position specifying data and comments corresponding thereto is displayed in order from the latest one. And the loaded DVD1
The stop position-related information including the disc name of 0 is partially highlighted by using a color different from the others or by a specific border. By being highlighted, the user can know the stop position corresponding to the loaded DVD 10, that is, the stop position where the reproduction can be started immediately without replacing the DVD 10. In the display example shown in FIG. 10, the stop position related information is displayed in the order of the data recording date (the generation date of the stop position specifying data), but can be rearranged.
For example, they can be displayed in the order of the disk names.

When the stop position menu screen is displayed, the system controller 60 operates the cursor key of the operation unit 58 by the user to move the cursor to one of the stop position related information displayed on the stop position menu screen. It is determined whether or not the stop key has been selected by pressing the setting key (step 202).

When the stop position is selected, the system controller 60 sets the D corresponding to the selected stop position.
It is determined whether or not the VD 10 is loaded in the DVD reproducing device 100 (Step 203). When the DVD 10 corresponding to the selected stop position is loaded in the DVD reproducing device 100, the system controller 60 outputs various servo commands to the servo control unit 18 based on the corresponding stop position specifying data. The reproduction is started from the selected stop position, for example, by outputting an image generation instruction to the video processor 44 (step 204).

The DV corresponding to the selected stop position
If D10 is not loaded in the DVD playback device 100, the system controller 60 performs control to display that playback cannot be started from the selected stop position (step 205).

As described above, in the DVD reproducing apparatus 100,
When the title playback is stopped or paused, stop position specifying data for specifying the stop position is generated and stored in the RAM 62, and the stop including the stop position related information is performed based on the stop position specifying data. When the position menu screen is displayed and any of the displayed stop position related information is selected, the reproduction operation is started from the corresponding stop position based on the stop position specifying data. The stop position menu screen displays various information related to the stop position, so that the user can appropriately select the stop position, and the corresponding stop position based on the stop position specifying data. By starting the reproduction operation from, the reproduction operation from the stop position desired by the user can be easily performed. In addition, by storing the stop position specifying data in the RAM 62, not only the reproduction operation from the position immediately before the stop or the pause but also the reproduction operation from the position where the stop or the previous stop was performed is easy. Can be done.

In the DVD reproducing apparatus 100, even when the power of the entire apparatus is turned off, the stop position specifying data is retained in the RAM 62. Therefore, even after the power is turned on again, the reproduction from the stop position is performed. The operation can be easily performed.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, in the above-described embodiment, when the stop position related information displayed on the stop position menu screen is selected, the reproduction from the corresponding stop position is started, but the stop position corresponding to the latest stop position related information is started. When the DVD 10 corresponding to the stop position is loaded in the disc reproducing apparatus 100, the user can operate the operation unit 58 without displaying the stop position menu screen.
The reproduction may be started by the operation of.

In the above-described embodiment, the stop position specifying data is generated when the title reproduction is stopped and paused. However, the stop position specifying data may be generated only when the title reproduction is stopped. Good. Also,
Stop position specifying data may be generated only when title playback is paused.

In the above-described embodiment, the stop position specifying data is generated only when the stop position recording instruction is issued. However, when the stop or pause is performed, the stop position specifying data is always generated. You may. Further, the user may be able to delete the stop position specifying data stored in the RAM 62. By deleting the stop position specifying data, it is possible to prevent the stop position menu screen from displaying stop position related information corresponding to an unnecessary stop position. Further, the stop position menu screen does not necessarily need to be displayed on one screen, and when there is a lot of stop position related information, the stop position menu screen may be displayed on a plurality of screens.

In the above-described embodiment, the DVD reproducing apparatus has been described. However, the present invention can be similarly applied to a disk reproducing apparatus for reproducing a CD, a video CD, and the like.

[0068]

As described above, according to the present invention, it is possible to specify a disc-type recording medium to be reproduced from a recorded stop position and a desired stop position while viewing the selection menu. It is easy to perform a reproducing operation from a specific stop position of the disk-type recording medium.

[Brief description of the drawings]

FIG. 1 is a diagram showing a structure of a volume space of a DVD.

FIG. 2 is a diagram showing a data structure of a VMG.

FIG. 3 is a diagram showing a data structure of a VTS.

FIG. 4 is a diagram showing a data structure of a VOB.

FIG. 5 is a diagram showing an example of the structure of a PGC.

FIG. 6 is a diagram illustrating an overall configuration of a DVD playback device according to one embodiment.

FIG. 7 is a diagram illustrating an example of stop position specifying data.

FIG. 8 is a flowchart showing an operation procedure of generating stop position specifying data by the DVD reproducing device of the embodiment.

FIG. 9 is a flowchart showing an operation procedure of displaying a stop position menu screen and reproducing from the stop position by the DVD reproducing device of the embodiment.

FIG. 10 is a diagram showing a display example of a stop position menu screen.

[Explanation of symbols]

 Reference Signs List 10 DVD 18 Servo control unit 24 Digital signal processing unit 30 Stream separation unit 32 Audio decoder 36 Video decoder 40 Sub-picture decoder 44 Video processor 58 Operation unit 60 System controller 62 RAM

Claims (3)

[Claims] 1. When a reproduction operation of an image and a sound recorded on a disk-type recording medium is stopped, at least the identification information of the disk-type recording medium loaded at that time and a stop reproduction position are included. Specific data generation storage means for generating and storing stop position specifying data; and information for specifying the disk type recording medium based on one or a plurality of the stop position specification data stored by the specific data generation and storage means. Selection menu display means for displaying a selection menu including the stop-time playback location, and when any of the stop-time playback locations included in the selection menu is selected, the corresponding disk-type recording medium Data reproducing means for reproducing an image and a sound from the reproduction position at the time of stop of the disk-type recording medium when loaded The disk reproducing apparatus comprising: a. 2. The display device according to claim 1, wherein the selection menu display means emphasizes at least a part of a display area corresponding to the disc type recording medium loaded at that time when displaying the selection menu. A disc reproducing apparatus characterized in that a display is performed by performing a display. 3. The apparatus according to claim 1, further comprising: comment input means for inputting a predetermined comment corresponding to any one of the stop position specifying data when the selection menu is displayed. Disc playback device.