JPH10200852A - Disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the disk reproducing device which makes it easy to understand the contents of a menu screen and eliminates the need to previously generate special video data for menu screen display by displaying the menu screen including video showing the contents of a reproduced moving picture. SOLUTION: The disk reproducing device 1 is constituted including a data processing part 30, an MPEG video decoder 32, a video processing part 34, a VRAM 36, D/A converters 38 and 42, an MPEG audio decoder 40, a control part 50, and an operation part 52. The control part 50 checks whether or not there is a menu screen having reproduction instructions of moving pictures in respective selection items according to various data of a video information part of a track 1 of a video CD 10 and decodes an I picture of reach reproducing moving picture when the menu screen is present to generate a menu video screen of divided video.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus for displaying a plurality of options on a menu screen and reproducing a moving image corresponding to the options selected by a user.

[0002]

2. Description of the Related Art Conventionally, CDs (Compact Discs)
2. Description of the Related Art There is known a disk reproducing apparatus which reproduces a moving image or a still image recorded on a DVD in conformity with the Video CD standard. There are various versions of this video CD standard.
At 0, it is possible to record one movie on one track, add a menu screen with a still image, and play back a movie by specifying the time for each scene. Features have been added.

FIG. 9 is a diagram showing an example of a menu screen displayed when a single disc is reproduced. For example, one movie is recorded on a video CD to be reproduced, and when this video CD is loaded into a disc reproducing apparatus and reproduction is started, first, a first menu screen shown in FIG. Is done. When the user presses a numeric key of the disc reproducing apparatus and selects “2. scene selection”, a second menu screen shown in FIG. 9B is displayed next. On this second menu screen, the start time of the selectable scene (the elapsed time from the beginning of the movie) is displayed, and the user selects the time of the scene to be played and displays the number corresponding to the number of the option. By pressing the key, the reproduction of the movie is started from the selected scene.

FIG. 10 is a diagram showing another example of the menu screen. For example, the video C you are trying to play
D has three movies recorded on separate tracks,
When this video CD is loaded into a disc reproducing apparatus and reproduction is started, a menu screen shown in FIG. The user selects the title of the movie he / she wants to watch while viewing the menu screen, and presses the numeric key corresponding to the number of the option to start playback of the movie.

[0005]

By the way, in the above-mentioned conventional disk reproducing apparatus, when a moving image such as a movie is selected on a menu screen, a still image using character information as shown in FIGS. The menu screen of the image is displayed, and the user must read the contents of each option on this menu screen, and it is not easy to understand the contents at a glance. Further, the conventional video CD includes video CD data for storing management information of the entire disc, and the image data of the video selected on the menu screen must be stored in the segment play item portion therein. Thus, instead of the menu screen including character information as shown in FIGS. 9B and 10, it is also possible to display a video of one scene of a moving image corresponding to each playback position as a menu screen. In this case, it is necessary to create image data for the menu screen in advance and store it in the segment play item section described above.
The burden on the side producing D becomes heavy.

[0006] The present invention has been made in view of the above points, and an object of the present invention is to display a menu screen including an image showing the contents of a reproduced moving image, thereby facilitating the understanding of the contents of the menu screen. Another object of the present invention is to provide a disk reproducing apparatus which does not need to create special video data in advance for displaying a menu screen.

[0007]

In order to solve the above-mentioned problems, a disk reproducing apparatus according to the present invention provides a still image in a frame corresponding to each of a plurality of scenes of a moving image recorded on a disk type recording medium. A video menu screen for instructing reproduction of any one of a plurality of scenes of a moving image is displayed by creating the image based on the encoded image data and displaying the divided image in one screen. Specifically, it includes a menu determination unit, a menu still image creation unit, and a menu screen display unit. The menu determining means determines that the character menu screen to be displayed has a selection item instructing reproduction of a moving image, and preferably that all the selection items included in the character menu screen instruct reproduction of a moving image. Then, a still image of one scene of each moving image is created by the menu still image creating means based on the intra-frame encoded image data included in the playback position of each moving image, and each still image corresponding to each selection item is created by the menu display means. 1 painting
An image menu screen included in the screen is displayed.

As described above, when the reproduction of a moving image is instructed as a selection item, instead of displaying the content of the moving image on the screen, the video of one scene of the moving image to be actually reproduced is divided and displayed. The person can easily understand the contents without reading the character information. Also, video 1
In order to display a video of a scene, it is not necessary to prepare and record the data of this video for the menu screen, and the burden on the side producing the disc type recording medium does not increase.

The display of the menu screen using the video of one scene of a moving image is not only divided into a plurality of still images in one screen but also each still image is made to correspond to a different display screen. The screens may be sequentially displayed at predetermined intervals. In this case, the video displayed on each screen is not limited to a still video, but may be a moving video reproduced for a predetermined time. As in the case of split display, it is easy to understand the contents, and there is no need to prepare video data for the menu screen.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disc reproducing apparatus to which the present invention is applied replaces a conventional menu screen (character menu screen) composed of character information with one scene of an image selected and started to be reproduced by this menu screen. It is characterized in that a menu screen (video menu screen) divided and displayed as a still image is displayed. Hereinafter, a disc reproducing apparatus according to an embodiment will be described with reference to the drawings.

FIG. 1 is a diagram showing a configuration of a disk reproducing apparatus according to an embodiment to which the present invention is applied. A disc reproducing apparatus 1 shown in FIG.
A spindle motor 12, an optical pickup 14, a feed motor 16, a servo circuit 18, and an RF amplifier 20 for reading a signal recorded in D10, and performing predetermined processing on the read signal to obtain a video signal and an audio signal. Data processing unit 30, MPEG video decoder 32, video processing unit 34, video RAM (VRAM) 3
6, digital-analog (D / A) converters 38, 42,
It comprises an MPEG audio decoder 40, a control unit 50 for controlling the entire disc reproducing apparatus 1, and an operation unit 52 for the user to input various instructions.

The spindle motor 12 is a video CD 10
Is rotated at a constant linear speed. The optical pickup 14 is
It reads a recording signal from the video CD 10, and usually uses a combination of a semiconductor laser and a photodiode. The feed motor 16 includes the optical pickup 1
4 is moved in the radial direction of the video CD 10.
The servo circuit 18 drives the spindle motor 12 and the feed motor 16 described above, and moves the focus lens (not shown) built in the optical pickup 14 to move the focus position of the semiconductor laser to the video CD 10.
In the direction perpendicular to the recording surface. Also, the servo circuit 1
Reference numeral 8 controls various servos (focus servo, tracking servo, and rotary servo) necessary for reading a recording signal from the video CD 10. The RF amplifier 20 amplifies the detection signal of the optical pickup 14 and performs waveform shaping.

The data processing section 30 performs synchronization detection and EFM (Eigh
t to Fourteen Modulation) After demodulation, CIRC
(Cross Interleave Reed-Solomon Code) Performs decoding processing and outputs compressed digital MPEG video data and MPEG audio data. Control unit 50
When compressed data in which MPEG video data and MPEG audio data output from the data processing unit 30 are mixed is supplied, the MPEG video data and the MP
The EG audio data is separated from the EG audio data, and the separated EG audio data is input to the MPEG video decoder 32 or the MPEG audio decoder 40.

The MPEG video decoder 32 includes a control unit 5
MPE based on MPEG video data separated by 0
The image data is decoded by the G method. The decoded image data is sent to the VRAM 36 by the video processing unit 34.
And read for each display line, and the read image data is further added to the D / A converter 38.
To generate an analog video signal. Also, M
The PEG audio decoder 40 decodes the audio data by the MPEG method based on the MPEG audio data separated by the control unit 50. The decoded audio data is converted into an analog audio signal by passing through the D / A converter 42.

The control unit 50 serves as a menu determining unit, and the control unit 50 and the MPEG video decoder 32 serve as a menu still image creating unit and a menu moving image creating unit. The control unit 50, the video processing unit 34, the VRAM 36 and the D / The A converter 38 corresponds to the menu screen display means.

Next, the disc structure of the video CD 10 will be described, including the file structure necessary for menu display. FIG. 2 is a diagram showing a disc structure of a video CD. As shown in FIG.
Lead-in, track 1, one or more tracks 2
~ N, lead-out.

The lead-in is based on TOC (Table of Content)
s) As information, the track number of each track and the MSF
(M = minutes, S = seconds, F = frames). Track 1 is a video CD data track on which various management information of the video CD is recorded.
File management information section (PV
D), Karaoke information section, Video CD information section, Segment play item section, CD
-I application sections are sequentially recorded.

Tracks 2 to N are MPEG video / audio tracks, and record video / audio streams compressed by MPEG1. Up to 98
Pieces of independent moving image data can be recorded. For example, when recording one movie, only one track, that is, track 2, is used, and when recording three different movies, tracks 2 to 4 are used. Note that M
After the PEG video / audio track, the same audio data as the music CD can be recorded and used as a CD-DA track. The lead-out is an area in which information indicating the end of recording of various data is recorded.

The still image data itself of each menu screen shown in FIGS. 9 and 10 is stored in the above-mentioned segment play item section, and these menu screens are displayed at what timing and when any key is pressed. The flow of playback control such as what to do next is stored in the video CD information section.
The video CD information section includes various information such as disc information (INFO), entry point table (ENTRIES), list ID offset table (LOT), and reproduction sequence descriptor (PSD).

The above-described flow of the playback control itself is described as a selection list and a play list in the playback sequence descriptor. The selection list is used to perform a menu selection operation.
Information specifying which screen (for example, the screen shown in FIG. 9B) is to be read from the segment play item portion included in the D data track (track 1), and which of the options the user who sees this menu screen has It contains information indicating what to do next when you choose one. When the user selects an option, another selection list or playlist corresponding to each option is selected.

The play list describes what to do when each play list is selected, and what to do can be specified mainly by three methods. The first is a method of displaying a still image or the like by specifying an arbitrary part of the segment play item portion (when the option “1” in FIG. 9A is specified, this playlist is selected and the story description screen is displayed. The second is a method of directly specifying the track numbers of the track 2 and subsequent to play the moving image from the beginning of the track (when the option “3” on the menu screen shown in FIG. 9A is specified). In this case, the playlist is selected and the movie recorded on the track 2 is reproduced from the beginning), and the entry 3 designates an entry point for reproducing a moving image from an arbitrary part of the track. (This playlist is selected when one of the options is specified from the menu screen shown in FIG. 9 (B), and the playback is performed from the middle of the corresponding movie. It is the case). When an entry point is specified in the playlist, the MS corresponding to the entry point
F and the track number including the MSF are read from the entry point table described above, and the MSF
The moving image is reproduced from the middle of the track specified by.

As described above, one or a plurality of menu screens having a hierarchical structure are displayed, and when an option included in the menu screen is selected, a still image is displayed next, or a moving image is displayed from which part of which track. The selection list and the play list include various kinds of information such as whether to perform the reproduction of the “.”, And the control unit 50 performs a series of playback controls by referring to these.

The control unit 50 according to the present embodiment includes a selection list in the playback sequence descriptor, and a playlist is designated corresponding to each option in the selection list. When the reproduction of a moving image is instructed (in the case of the above-described methods 2 and 3 of the playlist), the first I of the MPEG video data is reproduced for each reproduction position of each option.
Picture data is extracted and decompressed, and control for dividing and displaying the plurality of still images obtained by decompression is performed.

FIG. 3 shows an MPEG for extracting an I picture.
FIG. 3 is a diagram showing the structure of each track after track 2 on which video data is recorded. FIG. 4 is a diagram showing the structure of each sector constituting a track.

As shown in FIG. 3, each track is provided with a pause margin (at least 150 sectors) for searching by track number at the beginning, followed by a front margin (at least 15 sectors). To M
A PEG data section is provided, and finally a rear margin (15
Sector or more). An index number 00 is assigned to the pause margin, and index numbers 01 to 99 are assigned to the front margin, the MPEG data portion, and the rear margin.

As shown in FIG. 4, each of the sectors is provided with a pack header (PHD) at the head thereof, followed by pack data (PDT).
Each sector constitutes one pack (2324 bytes). The pack data (PDT) includes a packet, and each packet includes a packet header (PCH) and packet data (PCD). A start code, a reference clock, a transfer rate, and the like are recorded in the pack header (PHD) described above. In each packet, a packet header (PCH) records a start code, a stream type (separate of image data / audio data), a reproduction start time, a decode start time, and the like. , Compressed image data for at least one screen or compressed audio data for one frame and other data are recorded.

FIG. 5 is a diagram showing an example of a hierarchical structure of compressed image data in the MPEG format. As shown in the figure, MPEG compressed image data includes a sequence layer, a GOP (Group of Picture) layer, and a picture layer. In the sequence layer, many sequences are continuously formed, and each sequence is provided with a sequence header (HD) at the beginning, followed by a plurality of GOPs continuously, and finally the sequence end. Code is provided. In addition, the GOP layer has a group start code GS that becomes a GOP header (HD) at the beginning.
C is provided, followed by a plurality of three types of pictures, I, P, and B. Further, the picture layer includes a picture start code P at the head of a picture header (HD).
An SC is provided, followed by coded data, and these constitute one picture. Whether each picture in the picture layer corresponds to I, P, or B can be determined by reading the picture coding type PCT following the picture start code PSC. For example, if the picture coding type is “00”
When it is "1", it is an I picture, when it is "010", it is a P picture, and when it is "011", it is a B picture.

It should be noted that the above-mentioned I picture is an intra-frame coded image, and can be independently decoded by itself, and has the largest data amount as compared with a P picture or a B picture. The P picture is an inter-frame predictive coded image that is predictively coded based on the closest past I picture or P picture, has a smaller data amount than the I picture, and has a smaller data amount than the B picture. Large data volume. The B picture is a picture peculiar to MPEG, which is inter-frame predictive coded from both the closest past I picture or P picture and the next arriving I picture or P picture. The data amount is the smallest compared to one picture.

Next, the operation of the disk reproducing apparatus 1 of the present embodiment will be described. For example, one or a plurality of movies are recorded on one video CD 10, and a movie to be watched is selected by displaying a menu screen, or a scene to be watched from the middle of the movie is selected to play the movie. Is performed.

FIG. 6 is a flow chart showing the operation procedure of the disk reproducing apparatus 1, and mainly shows the operation of the control unit 50. When the video CD 10 is loaded into the disc reproducing apparatus 1, the control unit 50 selects the reproduction sequence descriptor PSD in the video CD information section recorded on the track 1 of the video CD 10 by selecting the menu corresponding to the menu screen to be displayed first. It is checked whether a list is included (step 600). When there is no corresponding selection list, for example, when playing a movie without displaying the menu screen, and when the playback of the movie recorded on the track 2 is instructed, the control unit 50 Reads compressed data from the beginning of track 2 of the video CD 10, further separates MPEG video data and MPEG audio data included in the compressed data, and inputs them to an MPEG video decoder 32 and an MPEG audio decoder 40, respectively. A movie is played (step 601). The MPEG video decoder 32 decodes the uncompressed image data from the input MPEG video data, and the image data is temporarily written into the VRAM 36 by the video processing unit 34, read out in display line units, and subjected to D / A conversion. The signal is converted into an analog video signal by passing through the device 38 and output. The MPEG audio decoder 40 decodes the uncompressed audio data from the input MPEG audio data, and converts the audio data into an analog audio signal by passing the audio data through a D / A converter 42.

The reproduction sequence descriptor P
When the selection list corresponding to the SD is included, the control unit 50 determines whether or not all the destinations (branch destinations) corresponding to the respective options included in the selection list are the playlists (step). 602). If only a playlist is specified as a branch destination, that is, if no other selection list is included, the control unit 50 next sets all of the playlists at the branch destination to play a movie (play a movie). It is determined whether or not an instruction has been given (step 603). For example, in the related art, when a menu screen as shown in FIG. 10 is displayed, a selection list corresponding to this menu screen includes “Title A”, “Title B”, and “Title C” respectively. The corresponding playlists are designated as branch destinations, and in these playlists, movie playback of the corresponding titles is instructed, and the affirmative determination is made in step 603 described above.

When the reproduction of a moving image is instructed by all the playlists, the control unit 50 next extracts I picture data which appears first at the reproduction position specified by each playlist, and extracts this. By inputting the data to the MPEG video decoder 32, the image data corresponding to the I picture is decoded (step 604). M
Whether or not each picture of the PEG video data is an I picture depends on the picture coding type PC of the picture layer.
Can be identified by T. The decoding process of the image data corresponding to the I picture is performed for all playlists, and the corresponding image data is
The video signal is input from the EG video decoder 32 to the video processing unit 34. Further, an instruction for performing a predetermined divided display is sent from the control unit 50 to the video processing unit 34, and the video processing unit 34 converts the image data corresponding to each playlist input from the MPEG video decoder 32 into the VRAM 36. Is stored in a predetermined area, so that one scene of each moving image is displayed on a display unit (not shown) connected to the disc reproducing apparatus 1.
Split display along with the option number on the screen (Step 6
05).

FIG. 7 is a diagram showing an example of a screen displayed in a divided manner. For example, in the related art, the menu screen shown in FIG. 10 is displayed, but in the disc reproducing apparatus 1 of the present embodiment, a specific video (still image) of a reproduction location as shown in FIG. The displayed menu screen is displayed.
When the menu screen is displayed, the display may be switched instantaneously after the decoding of all the divided videos is completed, or the divided videos may be displayed in the order in which the decoding is completed. For example, in the case of the menu screen shown in FIG. 7, when the decoding of the image data of "Title 1" is completed, the video of one scene is displayed, and then the decoding of the image data of "Title 2" is completed. To display the video of the one scene, and finally, when the decoding of the image data of "Title 3" is completed, the video of the one scene is displayed. As described above, when the divided images are sequentially displayed, the time during which nothing is displayed for a long time before the menu screen is displayed can be minimized.

When such a menu screen with divided images is displayed, the control unit 50 monitors whether or not the key of the option number displayed together with the divided images is pressed (step 606). When one of the keys is pressed, the corresponding moving image is reproduced (step 607).

In the above description, the case where all the options in the menu screen displayed first correspond to the reproduction of a moving image (the conventional case where the menu screen shown in FIG. 10 is displayed) has been considered. As shown in FIG. 9A, the reproduction of a moving image (more precisely,
Other than “1. Story description” for still image display and “2. Scene selection” for other menu screen display other than the reproduction of a moving image based on MPEG video data recorded on track 2 and subsequent tracks 0 In this case, the menu screen is not displayed with the above-described divided video.
That is, in these cases, a negative determination is made in step 602 or 603 described above,
In the case of 0, after performing the conventional menu screen display using characters as shown in FIG. 9A (step 608), it is monitored whether or not the key of the option number displayed on this menu screen has been pressed. (Step 609). When any key is pressed, the control unit 50 next determines whether the key is a key for selecting another menu screen, that is, whether another selection list corresponding to another menu screen has been selected. It is determined whether or not it is (step 610).
For example, if the user selects the number key “2” of the operation unit 52 after the menu screen shown in FIG. 9A is displayed, the control unit 50 displays the selection list as the selection destination. And the above-described step 60
The processing after step 2 is repeated. Therefore, instead of the conventional menu screen using characters as shown in FIG. 9B, the I-picture data that first appears at the playback position specified by each playback start time is obtained by decoding. Each video is displayed separately with the option number.

Also, when an item other than the menu screen display item other than the menu screen display item selected by the character displayed in step 608 is selected (“1. Story description” or “1. In the case where “3. full-length playback” is selected), the control unit 50 performs a predetermined operation based on the playlist corresponding to the selected item.
For example, a still image is read out from the segment play item portion of the track 1 and displayed, or a moving image is reproduced from an arbitrary portion of any of the tracks after the track 2.

As described above, when displaying the menu screen for selecting any one of a plurality of moving pictures, the disc reproducing apparatus 1 of the present embodiment displays one scene of each selectable moving picture in a still picture state. Since the display is divided and the user can grasp the contents of the moving image by each divided video, the contents can be easily understood at a glance. In addition, since the image data of each divided video included in the menu screen is created by decoding the first I picture data of the moving image to be reproduced, the producer does not need to prepare the menu screen for the menu screen, and produces it. The burden on the side is reduced.

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 embodiment described above,
When all the selection items included in the menu screen instruct the reproduction of the moving image, the video menu screen is displayed instead of the conventional text menu screen, but the text menu screen and the video menu screen are used together. You may do so. For example, the character menu screen shown in FIG. 10 is reduced and displayed in the lower right area of the screen shown in FIG.

When two types of menu screens are displayed in one screen as described above, it is not necessary that all the selection items included in the menu screen instruct reproduction of a moving image. For example, in the menu screen shown in FIG. 9A, only “3. full-length playback” instructs the playback of a moving image, and therefore, the video of one scene of the corresponding moving image is displayed together with the selection number “3” on the menu screen. The character menu screen shown in FIG. 9A is reduced and displayed in another area of the same menu screen.

When the menu screen is displayed, an option number is displayed together with each divided image, and any of the selection items is selected by pressing a number key from the operation unit 52. A touch panel may be provided near the display surface of the unit, and the user may select a selection item by directly pointing to a desired divided image. Alternatively, the user may press a cursor key of the operation unit 52 and move the cursor on the menu screen to select an arbitrary divided image. For example, it is conceivable to change the color of the outer frame portion of each divided image or change the color of the selection number displayed together with each divided image by moving the cursor.

Further, each divided image displayed on the menu screen is created by decoding I picture data which first appears at a position where reproduction is performed in accordance with each selection item. It is not necessary to use data, and I picture data appearing after the second may be used.

In the above-described embodiment, the still picture obtained by decoding the I-picture data is divided and displayed as one menu screen. The display of the plurality of screens may be sequentially switched at predetermined intervals in correspondence with the display screen. For example, the three divided images shown in FIG. 7 are made to correspond to different screens, and the display is switched in order as shown in FIG.

When a separate screen is displayed in correspondence with each of the selection items as described above, other than when a video of one scene of a moving image is displayed in a still image state in correspondence with each of the selection items. Alternatively, the moving image may be reproduced for a predetermined time. For example, instead of performing the decoding process based on the I picture data in Step 604 of FIG. 6, a moving image is reproduced for a predetermined time, and in Step 605 of FIG. A moving image for one screen corresponding to the selected item is displayed, and this is switched for each selected item.

Also, the case where the disk reproducing apparatus 1 of the above-described embodiment reproduces a moving image such as a movie recorded on the video CD 10 has been described, but a movie or the like recorded on a DVD (digital versatile disc) is described. The present invention can be similarly applied to a disk reproducing device for reproducing moving images. The disc reproducing apparatus for reproducing a DVD has basically the same configuration as the disc reproducing apparatus 1 shown in FIG. However, since various still images such as movie subtitles are recorded as sub-pictures on the DVD, MPEG video data (DV
D uses MPEG2 video data) and audio data (AC-3 audio data is often used in DVD) and separates sub-picture data. The separated sub-picture data is used as a dedicated sub-picture decoder. And the resulting still image and moving image are combined and displayed on the screen.

In such a DVD disc reproducing apparatus, when displaying a video menu screen corresponding to each selection item as described in the above-described embodiment, first, a character menu screen is selected from a menu program. The number of the corresponding sub-picture is extracted, the I-picture data first appearing at the moving image reproduction position specified by this is extracted, and the decoding process is performed by the MPEG2 method, and the divided image corresponding to one scene of the moving image is stored in the VRAM. Write some. Such processing is repeated for each selection item on the character menu screen, and a video menu screen including one scene of a moving image corresponding to each selection item is displayed. Therefore, for example, one of a plurality of movies recorded on a DVD can be selected,
Alternatively, when displaying a menu screen for selecting any one of images of different scenes or different angle screens of one movie, one scene of each selectable moving image can be divided and displayed in a still image state, Since the user can grasp the contents of the moving image by each divided video, the contents can be easily understood at a glance. Further, as in the case of the video CD, the image data of each divided video included in the menu screen is created by decoding the first I picture data of the moving image to be reproduced, so that the producer side is particularly required for the menu screen. There is no need to prepare, and the burden on the production side is reduced.

[0046]

As described above, according to the present invention, a still image corresponding to each of a plurality of scenes of a moving image recorded on a disk-type recording medium is created based on intra-frame encoded image data. The video menu screen for instructing video playback from any of a plurality of scenes of the video image is displayed by dividing and displaying it on one screen. The video of one scene of the moving image to be reproduced is divided and displayed. Therefore, the user can easily understand the contents without reading the text information. In addition, in order to display the video of one scene of the video, the data of this video is prepared and recorded especially for the menu screen. There is no need to keep it, and the burden on the side producing the disk-type recording medium does not increase.

The display of the menu screen using the video of one scene of the moving image is not only divided into a plurality of still images in one screen, but also each still image is made to correspond to a different display screen. The screens may be sequentially displayed at predetermined intervals. In this case, the video displayed on each screen is not limited to a still video, but may be a moving video reproduced for a predetermined time. As in the case of split display, it is easy to understand the contents, and there is no need to prepare video data for the menu screen.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a disk reproducing apparatus according to an embodiment to which the present invention is applied.

FIG. 2 is a diagram showing a disc structure of a video CD.

FIG. 3 is a diagram showing the structure of each track after track 2 on which MPEG video data for extracting an I picture is recorded.

FIG. 4 is a diagram showing a structure of each sector constituting a track.

FIG. 5 is a diagram illustrating an example of a hierarchical structure of compressed image data in an MPEG format.

FIG. 6 is a flowchart showing an operation procedure of the disc reproducing apparatus of the embodiment.

FIG. 7 is a diagram illustrating an example of a screen that is divided and displayed.

FIG. 8 is a diagram showing a menu screen for switching a plurality of image displays instead of the split display.

FIG. 9 is a diagram showing an example of a menu screen displayed when playing a disc.

FIG. 10 is a diagram showing another example of the menu screen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc reproduction apparatus 30 Data processing part 32 MPEG video decoder 34 Video processing part 36 VRAM 38, 42 D / A converter 40 MPEG audio decoder 50 Control part 52 Operation part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04N 5/781 H04N 5/781 510G 5/85 5/92 H 5/92

Claims (5)

[Claims] 1. A disk reproducing apparatus for reproducing a moving image based on intra-frame coded image data and inter-frame predictive coded image data read from a disk-type recording medium, wherein a plurality of scenes of the moving image are supported. Creating a still image based on the intra-frame encoded image data and
A disc reproducing apparatus, wherein a video menu screen for instructing reproduction of a moving image from any one of a plurality of scenes of the moving image is displayed by being divided and displayed on a screen. 2. A disk reproducing apparatus for reproducing a moving image based on intra-frame coded image data and inter-frame predictive coded image data read from a disk-type recording medium, wherein the video data is recorded on the disk-type recording medium. Menu determining means for determining whether or not a character menu screen to be displayed has a selection item instructing playback of a moving image based on the character menu screen creation data; and a selection instructing playback of a moving image in the character menu screen A menu still image creating means for creating a still image corresponding to one scene of the moving image based on the intra-frame encoded image data included in the moving image reproduction portion corresponding to the selected item, if there is an item; An image composed of divided images including a plurality of still images created by the menu still image creating means in one screen. And a menu screen displaying means for displaying an image menu screen. 3. The menu still image creation unit according to claim 2, wherein when the menu determination unit determines that all the selection items included in the character menu screen indicate reproduction of a moving image, A disk reproduction method comprising: creating a still image of one scene of a moving image corresponding to a selection item, and displaying the image menu screen including still image images corresponding to all selection items by the menu screen display means. apparatus. 4. The method according to claim 1, wherein, instead of displaying the video menu screen including the plurality of still image images in one screen, a plurality of still image images corresponding to each of the plurality of still image images are displayed. A disc reproducing apparatus characterized in that screens are sequentially displayed at predetermined intervals. 5. A disk reproducing apparatus for reproducing a moving image based on intra-frame coded image data and inter-frame predictive coded image data read from a disk-type recording medium, wherein the video data is recorded on the disk-type recording medium. Menu determining means for determining whether or not a character menu screen to be displayed has a selection item instructing playback of a moving image based on the character menu screen creation data; and a selection instructing playback of a moving image in the character menu screen When there is an item, a moving image corresponding to the selected item is reproduced for a predetermined time to create a moving image video, and a moving image corresponding to each of the selection items created by the menu moving image generating unit. And a menu screen display means for displaying images in order at predetermined time intervals. Disk reproducing apparatus.