JP3281741B2 - Disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player such as a video compact disc (video CD) player or a digital video disc (DVD) player. The present invention relates to the above-described disc player in which past pictures including the latest picture are sequentially displayed in a plurality of divided areas.

[0002]

2. Description of the Related Art Recently, disc players, especially,
12cm in diameter in the field of video CD players
Up to 74 CDs with CD-ROM format
A video CD in which compressed digital image data and compressed digital audio data are recorded in a time-division manner has been developed, and a video CD player for reproducing the compressed digital data recorded on the video CD has also been developed.

The outline of this known video CD will be described with reference to the drawings.

First, FIG. 4 is an explanatory diagram showing a disk configuration of such a video CD.

[0005] As shown in FIG.
Lead-in area (LIN) and track 1 (TR1)
And tracks 2 (TR2) to N (TRN)
And a lead-out area (LOUT). Here, the lead-in area (LIN) includes various T
This is an area where OC information is recorded.
(TR1) is an area in which a file management information section (PVD) compliant with ISO9660, a karaoke information section, a video CD information section, a segment play item section, and a CD-I application section are sequentially recorded. Tracks 2 (TR2) to N (TRN) are all MPEG1 (Moving Pictu
re Experts Group 1) This is an area in which compressed digital image data and compressed digital audio data are recorded according to the method, and a lead-out area (L)
OUT) is an area in which information indicating the end of recording of various data is recorded.

FIG. 5 is an explanatory diagram showing the structure of tracks and sectors in such a video CD.
(A) shows a track configuration, and (b) shows a sector configuration.

As shown in FIG. 5A, each track (for example, track number n, where n =
2, 3,..., N) are provided with a pause margin (150 sectors or more) for searching by track number at the beginning, followed by a front margin (15 sectors or more), and then MPEG. A data section is provided, and finally a rear margin (15 sectors or more) is provided. An index number 00 is assigned to the pause margin, and index numbers 01 to 9 are assigned to the front margin, the MPEG data portion, and the rear margin.
9 is attached.

As shown in FIG. 5B, each sector is provided with a pack header (PHD) at the beginning, followed by pack data (PDT). A sector forms one pack (2324 bytes). And, as shown,
The pack data (PDT) is composed of one packet (Packet), and this packet is composed of a packet header (PC).
H) and packet data (PCD). In this case, a start code, a reference clock, a transfer rate, and the like are recorded in the pack header (PHD). In the packet, the packet header (PCH)
Record a start code, a stream type (separate of image data / audio data), a reproduction start time, a decode start time, and the like. Packet data (PCD)
Records compressed image data for at least one screen and / or compressed audio data for one frame, and other data. The image data includes about 1.
2 Mb / s is assigned and audio data is
0.2 Mb / sec is assigned.

FIG. 6 is an explanatory diagram showing an example of a hierarchical structure of compressed image data in the MPEG format.

As shown in FIG. 6, the compressed image data is composed of a sequence layer, a GOP (Group of Picture) layer, and a picture layer. The sequence layer is composed of a large number of continuous sequences. Each sequence has a sequence header (H
D) is provided, thereafter, a plurality of GOPs are provided continuously, and finally, a sequence end code is provided, and these constitute one sequence. In addition, the GOP layer first has a GOP serving as a start code.
A header (HD) is provided, followed by I, P, B
Pictures B ₁ , B ₂ , I ₃ , B ₄ , B ₅ , P ₆ ,
_{B 7, B 8, P 9} , B 10, B 11, P 12, B 13, B 14, P
₁₅ are provided, and these constitute one GOP. Note that the number of three types of pictures, I, P, and B, is
15 is recommended. Further, the picture layer is provided with a picture header (HD) serving as a start code at first, and thereafter with coded data, and these constitute one picture. In this case, in each of the I, P, and B pictures, the I picture is an intra-frame coded image that can be independently decoded by itself and has the largest data amount compared to the P picture or the B picture. It is. The P picture is an inter-frame predictive coded image that has been predictively coded based on the latest past I picture and P picture, has a smaller data amount than the I picture, and has a smaller data amount than the B picture. The data volume is large. B picture is M
A PEG-specific picture that has been inter-frame coded from both the latest past I or P picture and the next arriving I or P picture, compared to the other two pictures. It has the least amount of data.

FIG. 7 shows three types of I, P and B.
FIG. 3 is an explanatory diagram showing an original picture order (reproduction order) of a picture and a recording order on a video CD.

As shown in FIG. 7, for 15 pictures of three types, I, P and B, the original picture order is B ₁ , B ₂ ,
I ₃ , B ₄ , B ₅ , P ₆ , B ₇ , B ₈ , P ₉ , B ₁₀ , B
₁₁ , P ₁₂ , B ₁₃ , B ₁₄ , P ₁₅
Is slightly different from the original image sequence in the order of I ₃ , B ₁ , B ₂ , P ₆ , B ₄ , B ₅ , P ₉ , B ₇ , B
_8, becomes the order of _{P 12, B 10, B 11} , P 15, B 13, B 14,
The playback order from the video CD is the same as the original image order, B ₁ , B
_{2, I 3, B 4,} B 5, P 6, B 7, B 8, P 9,
B _10, B _11, in which has become _{P 12, B 13, B 14} , P 15. As described above, the reason why the order of recording on the video CD and the order of reproduction from the video CD are different for the three types of 15 pictures of I, P, and B is to reduce the capacity of the frame memory of the decoder as much as possible. That's why.

Then, 15 pictures B ₁ , B ₂ , I ₃ , B ₄ , B ₅ , P ₆ , B ₇ , three kinds of pictures I, P and B are provided.
B ₈ , P ₉ , B ₁₀ , B ₁₁ , P ₁₂ , B ₁₃ , B ₁₄ , and P ₁₅ are M
When PEG decoded, as described above, I ₃
The picture is MPEG decoded by itself, but P ₆
Pictures are MPEG decoded using MPEG decoded I ₃ pictures, P ₉ pictures are MPEG decoded using MPEG decoded P ₆ pictures, and P ₁₂ pictures are MPEG decoded using MPEG decoded P ₉ pictures. is, P ₁₅ picture MP
Are those MPEG decoded using EG decoded P ₁₂ pictures. Further, B ₁ picture, B ₂ pictures are both, P _15, which is MPEG decoded in I ₃ picture and the first forward GOP which is MPEG decoded
Is MPEG decoded using pictures, B ₄ pictures, B ₅ pictures are both be MPEG decoded using P ₆ picture is I ₃ picture and the decoding is MPEG decoded, in the same manner, B ₇ pictures, B ₈ pictures, B ₁₀ pictures, B ₁₁ pictures, B ₁₃
Picture, B ₁₄ pictures are also intended to be MPEG decoded.

In this case, the known video CD player is configured such that two display modes, a normal forward mode and a fast forward mode, can be selected as display modes for displaying pictures on the image display unit. When the video CD player is selected in the normal feed mode, the recorded contents of the read video CD are sequentially displayed as pictures on the image display unit at a normal display speed. When the video CD player is selected in the fast-forward mode, I pictures are searched from the recorded contents of the read video CD, and the searched I pictures are displayed in order on the image display unit.

As described above, in the known video CD player, when the fast forward mode is selected, only the I picture is searched, and the searched I pictures are sequentially displayed on the image display unit because of a simple configuration. This is because a fast-forward mode can be achieved.

[0016]

The known video CD player employs means for searching only the I picture when the fast forward mode is selected, and displaying the searched I picture in order on the image display unit. But
Such means has the advantage that the circuit configuration for achieving the fast-forward mode is relatively simple, but when performing editing work using the display image displayed on the image display unit, the display image to be edited is An image of a moving object, for example, a pop music television (MT
V) When the image is an image or the like, a required picture may be missed. That is, in the recording of a video CD, an I picture occurs only about once every 15 frames and only once every 0.5 seconds, so that a scene in which a moving object changes several times a second can be used. In the case of a captured image, only about 0.0334 seconds in one frame is displayed when the fast-forward mode is selected.

As described above, when the video CD player performs an editing operation using a display image when the fast-forward mode is selected, depending on the content of the display image, the video CD player may overlook a required picture, making it difficult to perform the required editing operation. Problem.

The present invention solves the above problems,
The purpose is that when editing work when selecting the fast forward mode, you do not miss the picture you need,
An object of the present invention is to provide a disc player capable of performing desired editing.

[0019]

In order to achieve the above object, the present invention provides a method for reading compressed digital image data from a disk on which compressed digital image data comprising I, P, and B pictures is recorded in an MPEG format. A reading unit, a data processing unit for signal-processing the read compressed digital image data, an MPEG decoder for MPEG-decoding the signal-processed compressed digital image data, an image display unit for displaying an MPEG-decoded video signal, And a control unit for controlling the operation of the luminance signal data and two color differences
A picture data thinning section for thinning out signal data;
Fitting with data thinned out by the Kucha data thinning unit
A display panel for forming only a picture on the image display unit.
Processor and a switch to switch between normal mode and fast forward mode.
A video fast-forward circuit having a switch circuit.
When entering the fast forward mode, the image display section
Area, and the plurality of divided areas are
The latest embedded picture and its
Past inset picture from latest inset picture
Displayed in order and according to the set rapid traverse speed
Allows a specified picture area of multiple embedded pictures
A means is provided for fast-forward playback that is selected and updated in a strange manner .

[0020]

According to the above means, a video CD player as a disc player is provided with a video fast-forward circuit between an MPEG decoder and an image display unit. The display screen of the display unit is divided into a plurality of areas, and in the plurality of divided areas, the immediately preceding past picture including the latest picture with the data thinned out is sequentially displayed. In this case, the display screen of the image display unit is, for example, 4
In the case where 16 divided regions are formed by dividing the column into 4 rows in the horizontal direction, and the 16 divided regions are formed, these divided regions are referred to as regions 11 to 14 and regions 21 to 2 respectively.
4, regions 31 to 34, regions 41 to 44 (these two
The first digit indicates the vertical direction of the display screen, the numerical value increases from left to right, and the next one indicates the horizontal direction of the display screen, the lower one From the top to the top)
When a, the latest picture FP ₀ region 11, a picture FP ₁ of the last picture FP ₀ in the area 12, the picture FP ₂ of the last picture FP ₁ in the area 13, and so on, the most recent picture 15 th previous picture FP ₁₅ counted from FP ₀ will be displayed in the area 44. Then, the regions 11 to 14, the regions 21 to 24, and the regions 31 to 3 for each frame according to the fast-forward speed.
4. Each picture FP displayed in the areas 41 to 44 is updated as appropriate. For example, when the fast-forward speed is 16 ×, each area 11 to 14, the areas 21 to 24, and the area 31 To 34 and 16 pictures FP _{0 to} FP ₁₅ displayed in the areas 41 to 44 are all updated. When the fast-forward speed is 8 ×, eight pictures FP _{8 to} FPF ₁₆ are updated for each frame, the remaining eight picture FP ₀ to FP ₇ is a region 11 to 1
4, regions 31 to 34, region 4 from the side of regions 21 to 24
It moves to the side from 1 to 44.

As described above, according to the above means, a plurality of past pictures FP ₁ immediately before including the latest picture FP _0.
Since the FP ₁₅ is displayed at the same time, when performing the editing work in the fast-forward mode, the required picture is not missed, and the desired editing can be always performed.

[0022]

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

FIG. 1 is a block diagram showing the configuration of an embodiment of a disc player according to the present invention. In this embodiment, a video C is used as a disc player.
It shows an example of a D player.

In FIG. 1, 1 is a CD drive device, 2
Is a data reading unit, 3 is a data processing unit, 4 is a random access memory (RAM), 5 is a control unit, 6 is a servo circuit,
7 is an MPEG video decoder, 8 is a first dynamic random access memory (DRAM), 9 is a first digital-analog converter (A / D), 10 is an MPEG audio decoder, 11 is a second dynamic random access memory (DRAM). , 12 is a second digital-analog converter (A / D), 13 is a video fast-forward circuit, 14 is an image display unit, and 15 is a voice output unit (speaker).

The output of the CD drive 1 is connected to the input of the compressed data reading unit 2, and the output of the compressed data reading unit 2 is connected to the input of the data processing unit 3. The data processing unit 3 is connected to the RAM 4 and the output is connected to the control unit 5. The control unit 5 is connected to the CD drive device 1 via the servo circuit 6 and is also connected to the video fast-forward circuit 13. The video output of the control unit 5 is MPE
The input of the G video decoder 7 is connected to the input, and the audio output of the control unit 5 is connected to the input of the MPEG audio decoder 10. The MPEG video decoder 7 outputs the first DR
The AM 8 is connected, and the output is connected to the input of the first digital-analog converter 9. The MPEG audio decoder 10 has a second DRAM 11 connected thereto and an output connected to an input of the second digital-analog converter 12. The output of the first digital-analog converter 9 is connected to the input of the video fast-forward circuit 14, and the output of the video fast-forward circuit 14 is connected to the image display unit 14.
The output of the second digital-analog converter 12 is
5 is connected.

FIG. 2 is a block diagram showing an example of the configuration of the video fast-forward circuit 14 used in FIG.

In FIG. 2, reference numeral 16 denotes a picture data thinning section, reference numeral 17 denotes a display processor, reference numeral 18 denotes a frame memory, reference numeral 19 denotes a switch circuit, and other components which are the same as those shown in FIG. ing.

Then, the picture data thinning section 16
The input is connected to the first digital-analog converter 9 and the output is connected to the input of the display processor 17. The display processor 17 is connected to the control unit 5 and to the frame memory 18. Switch circuit 1
Reference numeral 9 denotes a switch having one circuit and two contacts. One fixed contact is connected to the first digital-analog converter 9, the other fixed contact is connected to the output of the display processor 17, and the movable contact is used for image display. The control terminal is connected to the control unit 5 while being connected to the unit 14.

FIGS. 3A and 3B are explanatory diagrams for explaining the operation of the present embodiment shown in FIG. 1, wherein FIG. 3A is an explanatory diagram showing the display order of pictures at a normal speed, and FIG. FIG. 4 is an explanatory diagram showing a change state of the display screen when the fast-forward speed is 16 ×, and FIG. 4C is an explanatory diagram showing a change state of the display screen when the fast-forward speed is 8 ×;
4 shows an example in which the display screen 4 is divided into 16 areas in the fast forward mode.

Here, the operation of the present embodiment having the above configuration will be described with reference to FIGS. 2 and 3 (a) to 3 (c).

When the CD drive device 1 is driven by the servo circuit 6 after loading a video CD (not shown), the loaded video CD rotates. The compressed data reading unit 2 reads the compressed digital data recorded on the rotationally driven video CD, amplifies the read compressed digital data and shapes the waveform, and supplies the amplified data to the subsequent data processing unit 3. The data processing unit 3 performs first digital processing including demodulation processing, error detection and correction processing, and demodulation processing of CD-ROM format MPEG data using the RAM 4 on the input compressed digital data. Detection and correction processing, address information (time information)
And a second digital process including an extraction process, and supplies the result to the control unit 5. When the CD drive 1 reads compressed digital data from a video CD under the control of the control unit 5, the servo circuit 6 performs various servo controls in the CD drive 1, for example, a rotary servo, a focusing servo, and a tracking servo. And controls the feed servo and the like.

Next, when the digitally processed compressed digital data is supplied from the data processing section 3, the control section 5 separates the compressed digital video data and the compressed digital audio data into
The compressed digital audio data is supplied to the EG video decoder 7, and the compressed digital audio data is supplied to the MPEG audio decoder 10. At this time, the MPEG video decoder 7 outputs the first DR
Using the AM 8, the input compressed digital video data is decoded by the MPEG system, and the MPEG-decoded digital video signal is supplied to the next first (A / D) 9. The first (A / D) 9 converts the digital video signal decoded by MPEG into an analog video signal,
The converted analog video signal is supplied to the video fast forward circuit 13. The video fast-forward circuit 13 is selected from a normal forward mode and a fast-forward mode under the control of the control unit 5. In either mode, the analog video signal obtained at the output of the video fast-forward circuit 13 is used for image display. Displayed by the unit 14. On the other hand, the MPEG audio decoder 10 uses the second DRAM 11 to decode the input compressed digital audio data in accordance with the MPEG method, and supplies the MPEG-decoded digital audio signal to the next second (A / D) 12. . The second (A
/ D) 12 converts the MPEG-decoded digital audio signal into an analog audio signal, and supplies the converted analog audio signal to a sound output unit 15 where it is output.

Here, when operating the video CD player in the normal feed mode, the video fast-forward circuit 13
According to the control of the control unit 5, the movable contact of the switch circuit 19 is switched to one fixed contact (upper fixed contact). During the operation of the normal feed mode, the first (A / D)
The analog video signal obtained at the output 9 is transmitted to the image display section 14 only by passing through the video fast-forward circuit 13 and displayed on the display screen of the image display section 14. That is, M
As shown in FIG. 3A, a plurality of pictures FP ₄₇ , FP ₄₆ ,..., F are output to the output of the PEG video decoder 7.
Assuming that P ₁ and FP ₀ are derived in the order shown, the display screen of the image display unit 14 displays one picture FP ₄₇ to one picture FP _{0 for} each frame, FP ₄₇ , FP ₄₆ ,
..., ..., they are displayed in the order of FP _1, FP _0.

On the other hand, when operating the video CD player in the fast-forward mode, the video fast-forward circuit 13 sets the movable contact of the switch circuit 19 to the other fixed contact (lower fixed contact) under the control of the control unit 5. Can be switched. During the operation in the fast-forward mode, the analog video signal obtained at the output of the first (A / D) 9 is transmitted to the image display unit 14 after the following data processing is performed in the video fast-forward circuit 13. Then, the images are simultaneously displayed in 16 divided areas on the display screen of the image display unit 14. That is, the output of the MPEG video decoder 7, as shown in FIG. 3 (a), a plurality of picture FP ₄₇ to FP ₀ is, if those derived in the order shown, the plurality of pictures FP ₄₇ to FP ₀ is first reduced in the picture data thinning stage 16 so that the vertical and horizontal lengths of the screen are (（) for each of the pictures FP _{47 to} FP _0. As a result, the screen size is reduced. It is reduced to (1/16). In this case, the screen size is set to (1/16)
Reduced screens were reduced to, for each picture FP ₄₇ to FP _0, the luminance signal (Y), red (R) color difference signal (Cr), each data of blue (B) color difference signals (Cb), the vertical and horizontal Are created by thinning each to (1/4). Next, the reduced screen data created in the picture data thinning stage 16 is supplied to the display processor 17 and then stored in the frame memory 18. At this time, the display processor 17 determines that the number of reduced screen data stored in the frame memory 18 is
Is equal to the number of areas divided into 16 areas of the display screen, and each time a predetermined display time comes, the corresponding reduced screen is sequentially displayed in the 16 divided areas, These reduced screen data are sequentially read from the frame memory 18 and supplied to the switch circuit 19. The switch circuit 19 converts the reduced screen data supplied from the display processor 17 into the image display unit 14.
And the pictures FP _{47 to} FP ₀ each reduced in size are appropriately displayed in the 16 divided areas of the display screen of the image display unit 14.

Here, when the fast-forward speed of the video CD player is 16 times speed, as shown in FIG. 3B, the display of each of the 16 display screens (frames) is performed for each display screen (frame). All of the pictures are updated and a new one
6 is displayed. That is, 16 pictures FP ₄₇ , F 16 are displayed on one display screen (frame).
Assuming that P ₄₆ ,..., FP ₃₃ and FP ₃₂ are divided and displayed, on the next display screen (frame),
16 pictures FP ₄₇ , FP ₄₆ ,..., FP ₃₃ , FP
All ₃₂ displays have been updated and a new 16 pictures FP
_31, FP _30, ..., ..., are displayed in a split FP _17, FP _16, in the display screen followed by (frame), picture FP ₃₁ it to the _{16, FP 30, ..., ...} , FP
₁₇ , All displays of FP ₁₆ are updated, and a new 16
Picture FP _15, FP _{14 of, ..., ..., FP 1,} FP 0 is displayed is divided.

When the fast-forward speed of the video CD player is 8 ×, as shown in FIG.
For each display screen (frame), eight of the sixteen pictures displayed so far are updated, and the display area of the remaining eight pictures shifts from the left to the right. That is, in some display screen (frame), 16 picture FP _31, FP ₃₀ of, ..., ..., FP _17,
Assuming that FP ₁₆ is divided and displayed, on the next display screen (frame), 16 pictures FP ₃₁ ,
The display of the eight pictures FP ₃₁ , FP ₃₀ ,..., FP ₂₅ , FP ₂₄ in FP ₃₀ ,..., FP ₁₇ , FP ₁₆ is updated, and the remaining eight pictures FP ₂₃ , FP ₂₂ , …,…,
The display area of FP ₁₇ and FP ₁₆ shifts from left to right, and 8
One picture _{FP 23, FP 22 ..., ...} , FP 17, after the FP _16, a new eight picture _{FP 15, FP 14, ...,} ...,
FP ₉ and FP ₈ are divided and displayed. On the subsequent display screen (frame), 16 pictures FP ₂₃ and FP ₂₃ are displayed.
FP _22, ..., ..., eight picture FP ₂₃ in the _{FP 9, FP 8, FP 22} , ..., ..., display of FP _17, FP ₁₆ is updated, the remaining eight picture FP _15, FP _14, …,…,
The display areas of FP ₉ and FP ₈ shift from the left to the right,
One picture _{FP 15, FP 14, ...,} ..., FP 9, FP 8
After, one new 8 picture FP _7, FP _6, ...,
.., FP ₁ and FP ₀ are divided and displayed.

[0037] Then, when the video CD player is in fast-forward mode, when temporarily stopping the fast-forward mode, as shown in the right drawing of FIG. 3 (b), (c) , the latest picture FP ₀ The pictures FP ₁ , FP ₂ ,..., Which are displayed in the lower left divided area of the display screen, and which simultaneously go back from the latest picture FP ₀ to 15 pictures in the past.
.., FP ₁₄ and FP ₁₅ are sequentially divided and displayed from the lower left side to the upper right side of the display screen.

In this case, in the above-described embodiment, the case where the fast forward speed of the video CD player is 16 × or 8 × is described as an example. However, the fast forward speed of the video CD player according to the present invention is 16 × or 8 ×. The speed is not limited to the 8 × speed, but may be selected to be any other speed. However, video CD
If the player's fast forward speed is selected to be a speed other than 16x or 8x, 1
Picture FP displayed on one display screen (frame)
Of course, the display states of ₁ , FP ₂ ,... Are different from each other.

In the above embodiment, the video CD
Although the case where the display screen of the image display unit 14 of the player is divided into 16 has been described as an example, the number of divisions of the display screen of the image display unit 14 according to the present invention is not limited to 16 divisions. For example, it may be configured to be divided into eight, four, and nine. However, when the display screen of the image display unit 14 of the video CD player is selected to have a division number other than 16 divisions, each picture FP ₁ , F displayed on one display screen (frame) according to the division number.
Of course, the display states of P ₂ ,... Are different from each other.

As described above, according to the video CD player of the present embodiment, the video fast-forward circuit 13 is provided between the MPEG decoder 7 and the image display unit 14, and this video fast-forward circuit 13 is used in the fast forward mode of the display image. , The display screen of the image display unit 14 is divided into a plurality of regions, and the latest picture P
F ₀ and the picture FP ₁ past 15 immediately before the latest picture _{PF 0, FP 2, ...,} ..., so as to display the FP ₁₅ in order, and, in accordance with the multiple speed of the fast-forward mode, 1 Since the contents of the 16 pictures PF _{0 to} FP ₁₅ displayed on one display screen (frame) are appropriately updated,
When performing an editing operation in the fast-forward mode, a required picture is not missed, and a desired image can be edited at all times.

In the above embodiment, the case where the disc player is a video CD player has been described as an example. However, the disc player according to the present invention is not limited to a video CD player, and other similar discs may be used. It is equally applicable to players, for example digital video disc (DVD) players.

[0042]

As described above in detail, according to the disc player of the present invention, the MPEG decoder 7
A video fast-forward circuit 13 is provided between the image display unit 14 and the video display unit 14. The video fast-forward circuit 13 divides the display screen of the image display unit 14 into a plurality of regions in a fast-forward mode of a display image. in the region, respectively, past 15 picture FP _1, F of the previous data and the latest pictures PF ₀ obtained by thinning the latest picture PF ₀
P _2, ..., ..., and so as to display the FP ₁₅ in order, moreover, 16 picture PF ₀ to FP ₁₅ that are displayed on one display screen (frame) is fast-forwarding, which is set in the video CD player 1 according to the speed in mode
Since 6 all or part of the picture PF ₀ to FP ₁₅ of is updated, when the fast-forward mode performing editing work also prevents miss picture that needs always be edited desired image There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a disc player according to the present invention.

FIG. 2 is a block diagram showing an example of a configuration of a video fast-forward circuit used in FIG. 1;

FIG. 3 is an explanatory diagram for explaining the operation of the present embodiment shown in FIG. 1;

FIG. 4 is an explanatory diagram showing a configuration of a disc in a video CD.

FIG. 5 is an explanatory diagram showing the configuration of tracks and sectors in a video CD.

FIG. 6 is an explanatory diagram showing an example of a hierarchical structure of compressed image data in the MPEG format.

FIG. 7 is an explanatory diagram showing an original picture order (playback order) and a recording order of three types of 15 pictures of I, P, and B.

[Explanation of symbols]

Reference Signs List 1 CD drive device 2 Data reading unit 3 Data processing unit 4 Random access memory (RAM) 5 Control unit 6 Servo circuit 7 MPEG video decoder 8 First dynamic random access memory (DRA)
M) 9 First digital-analog converter (A / D) 10 MPEG audio decoder 11 Second dynamic random access memory (DR)
AM) 12 Second digital-analog converter (A / D) 13 Video fast-forward circuit 14 Image display unit 15 Voice output unit (speaker) 16 Picture data thinning stage 17 Display processor 18 Frame memory 19 Switch circuit

Claims (5)

(57) [Claims] 1. A data reading unit for reading compressed digital image data from a disk on which compressed digital image data composed of I, P, and B pictures are recorded in an MPEG format, and data for signal processing the read compressed digital image data a processing unit, a MPEG decoder for MPEG decoding compressed digital image data obtained by the signal processing, an image display unit for displaying a video signal MPEG decoding, in the disc player and a control unit for controlling the entire operation, the luminance signal Data and two color differences
A picture data thinning section for thinning out signal data;
Fitting with data thinned out by the Kucha data thinning unit
A display panel for forming only a picture on the image display unit.
Processor and a switch to switch between normal mode and fast forward mode.
A video fast-forward circuit having a switch circuit.
When entering the fast forward mode, the image display section
Area, and the plurality of divided areas are
The latest embedded picture and its
Past inset picture from latest inset picture
Displayed in order and according to the set rapid traverse speed
Allows a specified picture area of multiple embedded pictures
A disc player characterized by fast forward playback that is selected and updated progressively . 2. The number of divided areas of the display screen is:
The disc player according to claim 1 , wherein the number is 16 . 3. The number of divided areas of the display screen is:
2. The method according to claim 1, wherein the signal is one of 8, 4, and 9.
The disc player described in 1. 4. The video player according to claim 1, wherein the disc player is a video CD.
Claims 1 to 3 Neu, characterized in that a player
Disk player of Zurekani described. 5. The DVD player, comprising: a DVD player;
4. The disc player according to claim 1 , wherein the disc player is a disc player.