JP2003199025A - Image data reproducing apparatus and image data reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image data reproducing apparatus effective for checking desired part of contents of image data. <P>SOLUTION: The image data reproducing apparatus divides image data into at least a plurality of moving picture data blocks 28-31, combines one frame belonging to each block with reduced image data and background data, displays resultant reduced images 32-35 on a menu screen 38, designates the reduced images 32-35 on the menu screen 38, searches the moving picture data blocks 28-31 to which the frames of the reduced images 32-35 belong, based on stored addresses linked with data corresponding to the designated reduced images, reduces the searched moving picture data blocks 32-35, combines the blocks and displays a resultant image on the screen 38. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video data reproducing device and a video data reproducing method, and more particularly to a device having a function of displaying a menu screen which is a user interface for designating a portion of a video to be reproduced.

[0002]

2. Description of the Related Art As a prior art of the present invention, Japanese Patent Laid-Open No. 10-
There is 262194 publication (publication date: September 29, 1998).

This publication discloses a technique for synthesizing and displaying images received by two TV tuners.

According to the present invention, there is disclosed a multi-channel program selection method and apparatus in which a video obtained by the first tuner and a video synthesized by another tuner are displayed so that it takes no time to select a program. .

The prior art is a system suitable for selecting a television signal, but when reproducing this video data from a medium in which the video data is recorded, such as a video disc, an arbitrary portion of the content of the video data is reproduced. It is unsuitable when generating a menu screen for checking in a fragmentary manner.

In addition, when a menu screen is generated and candidates are selected from all the screens to be selected, it is desirable that the selection candidate is a moving image as an aid in accurately grasping the contents.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video data reproducing apparatus and a video data reproducing method which are effective in confirming an arbitrary portion in the contents of video data.

[0008]

In order to solve the above-mentioned problems, a video data reproducing apparatus of the present invention reproduces video data composed of at least two moving image data blocks composed of a plurality of screen frames, A video data reproducing apparatus which has a memory for storing an address for searching screen data of the screen frame, searches the video data by the address and reproduces the video data. The first reduced screen data obtained by reducing the first screen frame belonging to the moving image data block, the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block, and the background data are combined. Then, the menu screen data for generating the menu screen in which the first reduced screen and the second reduced screen are displayed is generated. When the screen generation means and the first reduced screen or the second reduced screen are designated, the first moving image data block to which the first screen frame belongs or the first moving image data block to which the second screen frame belongs The reduced screen generation means for reducing the second moving image data block to generate a reduced moving image data block, the menu in which the first reduced screen data, the second reduced screen data, and the background data are combined. A video signal for outputting the menu screen data obtained by combining the reduced moving image data block with the moving image combining means for combining the reduced moving image data block with the screen data as a video signal for displaying the menu screen. And an output unit. In order to solve the above-mentioned problems, the video data reproducing apparatus of the present invention searches the screen data of the screen frame in order to reproduce the video data composed of at least two moving image data blocks composed of a plurality of screen frames. A video data reproducing apparatus which has a memory for storing an address, searches for and reproduces the video data by the address, and is a first screen belonging to a first video data block of the two video data blocks. The first reduced screen data obtained by reducing the frame and the second
Menu screen generating means for generating menu screen data by synthesizing second reduced screen data obtained by reducing the second screen frame belonging to the moving picture data block, and background data; Reduced screen designating means for designating a first reduced screen based on one reduced screen data or a second reduced screen based on second reduced screen data, and the reduced screen designating means for the first reduced screen or the above When the second reduced screen is designated, from the addresses stored in the memory, the
Based on a first address for searching one moving image data block or a second address for searching the second moving image data block, the first moving image data block or the second moving image data block And a reduced screen generation means for reducing the first or second moving picture data block searched by the data searching means to generate a reduced moving picture data block, and the first reduction. A moving image synthesizing unit for synthesizing the reduced moving image data block and the moving image synthesizing unit synthesizes the reduced moving image data block with the menu screen data obtained by synthesizing the screen data, the second reduced screen data and the background data. And a video signal output means for outputting the menu screen data as a video signal for displaying the menu screen. Characterized by comprising.

In order to solve the above-mentioned problems, the video data reproducing apparatus of the present invention, in order to reproduce the video data composed of at least two moving image data blocks composed of a plurality of screen frames, Is a video data reproducing device which has a memory for storing an address for searching the video data and searches for the video data by the address and reproduces the video data. The video data reproducing device belongs to a first video data block of the two video data blocks. The first reduced screen data obtained by reducing the first screen frame, the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block, and the background data are combined to obtain menu screen data. A menu screen generating means for generating the first screen based on the first reduced screen data combined with the menu screen data. A first reduced screen designating unit that designates a small screen or a second reduced screen based on the second reduced screen data, and the reduced screen designating unit designates the first reduced screen or the second reduced screen. Of the addresses stored in the memory,
Based on a first address for searching one moving image data block or a second address for searching the second moving image data block, the first moving image data block or the second moving image data block And a third moving image data block and at least one of the first and second moving image data blocks designated by the data searching unit.
A moving image data block, and a reduced screen generating means for performing a reducing process, and a third screen for the menu screen data.
In the first display mode in which one frame of data in the moving image data block is used as a still image and the fourth moving image data block is used as a moving image, and the third moving image data block is used as a still image in the fourth moving image data block. A video for displaying a menu screen of a moving picture synthesizing unit for sequentially switching and synthesizing and outputting the second display mode for synthesizing one frame of data as a moving image, and the menu screen data output by the moving image synthesizing unit And a video signal output means for outputting as a signal.

In order to solve the above-mentioned problems, the video data reproducing method of the present invention, in order to reproduce video data composed of at least two moving image data blocks composed of a plurality of screen frames, Is a video data reproducing method for searching and reproducing the video data according to an address for searching the first video frame of the two video data blocks, the first screen frame belonging to the first video data block being reduced in size. A menu screen generating step of generating menu screen data by synthesizing the reduced screen data, the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block, and the background data; The first reduced screen or the second reduced screen data based on the first reduced screen data combined with the screen data. A reduced screen designating step for designating a second reduced screen based on the data, and the first moving image data block when the first reduced screen or the second reduced screen is designated by the reduced screen designating means. Search for the first moving image data block or the second moving image data block based on a first address for searching the second moving image data block or a second address for searching the second moving image data block A reduced screen generation step of reducing the searched first or second moving image data block to generate a reduced moving image data block in the data searching step; the first reduced screen data; The reduced moving image data block is combined with the menu screen data obtained by combining the second reduced screen data and the background data. And a video signal output step of outputting the menu screen data in which the reduced video data blocks are combined as a video signal for displaying a menu screen in the moving picture combining step. Video data playback method. In order to solve the above-mentioned problems, the video data reproducing method of the present invention searches the screen data of the screen frame in order to reproduce the video data composed of at least two moving image data blocks composed of a plurality of screen frames. A video data reproducing method for searching for and reproducing the video data according to an address, comprising a first reduced screen obtained by reducing a first screen frame belonging to the first moving image data block of the two moving image data blocks. A menu screen generating step for generating menu screen data by synthesizing data and second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block, and background data; The first based on the first reduced screen data combined with the data
Second reduced screen or second based on the second reduced screen data
A first reduced screen designation step for designating a reduced screen of
When the first reduced screen or the second reduced screen is designated by the reduced screen designating means, a first moving image data block is searched for from the addresses stored in the memory. Address of
The data search step of searching the first video data block or the second video data block based on the second address for searching the second video data block, and the data search step. A reduced screen generation step of dividing at least one of the first and second moving image data blocks into at least a third moving image data block and a fourth moving image data block, and performing a reduction process; In the first display mode in which one frame of data in the third moving image data block is used as a still image and the fourth moving image data block is used as a moving image, and the third moving image data block is used as a still image, By sequentially switching the second display mode that synthesizes one frame of data in the moving image data block as a moving image And video synthesis step to form output,
And a video signal output step of outputting the menu screen data output in the moving picture synthesizing step as a video signal for displaying the menu screen.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the embodiments of the present invention,
The first embodiment will be described with reference to FIGS. 1 to 5.

FIG. 1 is a block diagram of a video data reproducing apparatus of the present invention.

In the present embodiment, the video data reproducing apparatus is capable of reproducing a video signal composed of a plurality of screen frames, and a video disk recorder capable of recording video data will be described as an example.

In FIG. 1, reference numeral 1 is an optical disk drive for reproducing or recording a disk on which video data is recorded. Reference numeral 2 is a circuit to which a voice signal from the outside is input, and AD which digitizes the voice signal to produce voice data
This is a front-end processing circuit that has a built-in (analog-digital) converter.

A voice compression processing circuit 3 is connected to the latter stage of the front stage processing circuit 2 and performs a process of reducing the total code amount of digitized voice data. Reference numeral 4 denotes a circuit to which a video signal from the outside is input, which is a pre-stage processing circuit having a built-in AD (analog-digital) converter for digitizing the video signal into video data.

A video compression processing circuit 5 is connected to the subsequent stage of the pre-processing circuit 4 and performs compression processing for reducing the total code amount of digitized video data.

At the subsequent stage of the audio compression processing circuit 3 and the video compression processing circuit 5, a multiplexer 6 for synthesizing the compressed audio data and the video data into video audio data.
Are connected. The video / audio data output from the multiplexer 6 is transferred to the bridge circuit 7 connected to the subsequent stage of the multiplexer 6.

The bridge circuit 7 is connected to the above-mentioned optical disk drive 1 and performs a transfer process for recording video / audio data to the optical disk in the optical disk drive, or records from the optical disk drive 1 to the optical disk. The data transfer arbitration process is performed to receive the transferred video and audio data.

A buffer memory 8 is connected to the bridge circuit 7, and data is buffered when the data is transferred to the optical disk drive 1 and when the data is transferred from the optical disk drive 1.

Further, a demultiplexer 9 is connected to the subsequent stage of the bridge circuit 7, and the bridge circuit 7 transfers data audio / video data buffered in the buffer memory 8 to the demultiplexer 9 for data arbitration control. I do.

The demultiplexer 9 performs a process of separating the transferred video / audio data into video data and audio data.

A video expansion circuit 10 and an audio expansion circuit 14 are connected to the subsequent stage of the demultiplexer 9, and the demultiplexer 9 transfers the separated video data to the video expansion circuit 10 to the audio expansion circuit 14. Transfer the separated audio data.

The video expansion circuit 10 expands the compressed video data and decodes it into video data. The audio decompression circuit 10 also decompresses the compressed audio data to decode the original audio data.

A post-stage processing circuit 15 is connected to the post-stage of the audio decompression circuit 14, and the post-stage processing circuit 15 transfers the decompressed audio data to the post-stage processing circuit 15.

The post-processing circuit 15 has a built-in analog-to-digital converter which converts the voice data into analog voice in units of the number of bits of the sampled data, and outputs the voice data after the analog conversion.

Further, a graphic engine 11 is connected to the latter stage of the video expansion circuit 10, and the video expansion circuit 10 transfers the expanded video data to the graphic engine 11.

The graphic engine 11 is a circuit for synthesizing the transferred video data with each other. A buffer memory 12 is connected to the graphic engine 11, and the transferred video data is once buffered in the buffer memory 12.

A post-stage processing circuit 13 is connected to the post-stage of the graphic engine 11, and the post-stage processing circuit 13 has an analog-digital converter for converting the video data into an analog signal. Output as.

In the post-stage processing circuit 13, a synchronizing signal is added to the video data after the analog conversion, and the video data is output in a reproducible state by the video signal processing circuit of the television device.

A host circuit 16 and a flash memory 17 are connected to the blocks of each of these circuits via a bus line. The host circuit 16 controls each circuit via a bus line.

The flash memory 17 is a host circuit 16
Functions as a work memory for temporarily storing a program for operating.

Next, the configuration and operation of the above-mentioned graphic engine 11 will be described with reference to FIG.

FIG. 2 is a block diagram of the graphic engine 11.

The graphic engine 11 includes the buffer 12, the buffer controller 18 connected to the host circuit 16, the reduction circuit 19, the buffer memory 21, the buffer memory 22, and the buffer memory 22 connected to the buffer controller 18. Adder 24 connected to 22 and adder 2 connected to buffer memory 21
3 and an adder 25 for adding the outputs of the adder 23 and the adder 25.

Video data decompressed by the video decompression processing circuit 10 is transferred to the graphic engine 11, transferred to the buffer memory 12 via the buffer controller 18, and buffered once.

Here, in order to explain the operation of the graphic engine 11 when generating reduced screen data for the menu screen, FIG. 3 will be used in addition to FIG.

In FIG. 3, reference numeral 40 is a content structure diagram of video data to be reproduced.

Reference numerals 28, 29, 30, and 31 denote respective moving image data blocks which form video data. Three
2, 33, 34, and 35 are the screen data of the first screen frame among the plurality of screen frames belonging to each moving image data block.

The host circuit 16 outputs to the buffer controller 18 of the graphic engine 11 a command to extract the screen data of the screen frames 32 to 35 and transfer it to the reduction circuit 19.

The reduction circuit reduces the pixels in the horizontal direction of the screen with respect to the screen frames 32 to 35, thins out the data in the horizontal period in the vertical direction, and then the screen frames 32 to 35.
The reduced screen data corresponding to is generated and transferred to the buffer memory 22.

On the other hand, background data for generating menu screen data is buffered in the buffer memory 21 in advance.

The background data buffered in the buffer memory 21 and the buffer memory 22 and the reduced screen data corresponding to the screen frames 32 to 35 are transferred to the adders 23 and 23 of the next stage after a predetermined time. .

Coefficient data a and coefficient data b are given to the adders 23 and 24, respectively.
The signal level of the reduced screen data corresponding to the screen frames 32 to 35 is controlled.

The background data passed through the adders 23 and 24 and the reduced screen data corresponding to the screen frames 32 to 35 are combined by the adder 25 to be generated as menu screen data, which is transferred to the post-stage processing circuit 13. .

The post-stage processing circuit 13 converts the transferred menu screen data into a video signal for displaying the menu screen and outputs it.

The present invention uses the graphic engine 11
Is used to generate a menu screen and provide an effective device when confirming an arbitrary part in the content of video data.

Hereinafter, in addition to FIGS. 1 and 2, FIGS.
The main operation in the first embodiment of the present invention will be described using.

FIG. 4 is a diagram showing a flowchart of a program for executing the operation of the first embodiment. Figure 5
FIG. 8 is a diagram showing an example of a menu screen obtained as a result of executing this program.

This program is installed in the flash ROM 17, and the host circuit 16 operates according to this program.

The program consists of steps 1 to 14
It consists of a total of 14 steps.

Further, the host circuit 16 stores in advance in the built-in memory addresses for accessing the optical disk drive 1 and accessing each screen frame of the moving image data blocks 28 to 31 on the optical disk.

The host circuit 16 operates according to a program. In this program, step 1 shows the starting process.

Next, the process shifts to step S2 to execute a process of acquiring reduced screen data corresponding to the screen frames 32 to 35.

This reduced screen data is shown in FIG.
This is generated by reducing the image data of the first frame belonging to each of the moving image data blocks 28 to 31.

The reduced screen data includes screen frames 32 to 3
The moving picture data block 28 on the disk corresponding to 5
It is recorded on the disc together with the addresses for searching .about.31.

Next, the program shifts to the processing of step S2, and the reduction screen data acquisition processing is performed.

The host circuit 16 transfers an instruction to the optical disk drive 1 and causes the optical pickup (not shown) of the optical disk drive 1 to acquire reduced screen data.

The reduced screen data corresponding to the screen frames 32 to 35 read from the optical disk and the addresses for searching the moving image data blocks 28 to 31 are transferred to the buffer memory 8 via the bridge circuit 7 and temporarily stored. Remembered.

The processing of the program shifts to step 3,
Reduced screen data corresponding to the screen frames 32 to 35,
Background data combining processing is performed.

At this time, the host circuit 16 transfers an instruction to the bridge circuit 7, reads the reduced screen data corresponding to the screen frames 32 to 35 from the buffer 8, and then the bridge circuit 7, the demultiplexer 9, and the video decompression circuit 10 are read. And is transferred to the graphic engine 11.

The graphic engine 11 temporarily stores the reduced screen data corresponding to the transferred screen frames 32 to 35 in the buffer memory 12, and further performs a combining process with the background data stored in the buffer memory 12 in advance.

This synthesizing process is performed by the buffer controller 18 synthesizing the reduced screen data corresponding to the screen frames 32 to 35 temporarily stored in the buffer 12 and the background data according to an instruction from the host circuit 16.

The reduced screen data corresponding to the screen frames 32 to 35 and the background data are buffered in the buffer memories 21 and 22 built in the graphic engine 11, respectively, and then passed through the adders 23 and 24 to the adder 26. Are combined into the menu screen data.

The menu screen data generated in the graphic engine 11 is transferred to the post-stage processing circuit 13. Next, the process of the program moves to step S4, and the process of displaying the synthetic data of the menu screen is performed.

At this time, the host circuit 16 transfers a command to the post-processing circuit 13 to convert the menu screen data into a video signal. A television monitor (not shown) is connected to the post-stage processing circuit 16 via a video signal output terminal, and the menu screen shown in FIG. 5 is displayed on the screen of the monitor.

This menu screen 38 is displayed in the screen frame 3
A reduced screen corresponding to 2-35 is displayed.

Next, the program proceeds to step S5 and enters the input standby state. In response to a command from the host circuit 16, the graphic engine 11 operates so as to synthesize the graphics of the pointer 37 on the menu screen 38. At this time, the processing of the program proceeds in the y direction,
When there is no command, the process proceeds to the n direction and enters the standby state in which the process of step S5 is repeated.

The host circuit 16 controls the display position of the pointer 37 so as to move the graphics of the pointer 37 on the menu screen 38 in accordance with a command output from a remote controller (not shown) which gives a command from the user.

The reduced screens corresponding to the screen frames 32 to 35 displayed on the menu screen 38 are managed by the host circuit 16 in association with the search address of the moving picture data block to which they belong.

The address data is stored in the internal memory of the host circuit 16 from the buffer memory 8 and is linked to the designation of the reduced screen on the menu screen 38 by the host circuit 1.
Selected by 6.

Here, when the reduced screen of the screen frames 32 to 35 displayed on the menu screen 38 is designated by the pointer 37, the outline of the reduced screen becomes thick.

In this way, the reduction screen designation processing is performed. At the time when this designation process is performed, the program continues to wait for designation of the reduced screen.

Next, the processing of the program shifts to step S6 and enters a standby state for confirming the designation of the reduced screen.
In this step, if the designation of the reduced screen is not confirmed, the process proceeds in the n direction and the standby state in which the process of step S5 is repeated continues.

FIG. 5 shows a state in which the pointer 37 designates the reduced screen 32. The border of the reduced screen designated by the pointer 37 is thick.

Here, when the confirmation process is executed by a command output from a remote controller (not shown), the process proceeds in the y direction, and the program process proceeds to step S7.

In this step, acquisition processing of the moving image data block of the finalized screen is performed.

As described above, the reduced screen is managed by the host circuit 16 in association with the search address of the moving picture data block to which the reduced screen belongs.

Therefore, when the selection of the reduced screen is confirmed, the host circuit 16 selects the address for the optical disc drive 1 when the selection of the reduced screen is confirmed, and the moving image data block is searched based on this address.

Next, the processing of the program proceeds to step S7, and the processing of acquiring the moving image data block to which the screen frame of the confirmed screen belongs is executed.

According to the example of the reduced screen designated in FIG. 5, the moving image data block searched is the moving image data block 28 to which the screen frame 32 belongs.

The optical pickup of the optical disc drive 1 is moved to the recording position of the moving picture data block 28 by the command of the host circuit 16 and reads this data, and the optical disc drive 1 transfers it to the bridge circuit 7 in the subsequent stage. Then, the moving image data block 28 is temporarily stored in the buffer memory 8.

Next, the processing of the program shifts to the reduction processing of this fixed screen data.

The moving picture data of the confirmation screen is executed by the above-mentioned graphic engine 11.

First, the command from the host circuit 16 is given to the bridge circuit 7, the moving image data block 28 is read from the buffer memory 8, and the graphic engine 11 is passed through the bridge circuit 7, the multiplexor 9, and the video expansion circuit 10. Transferred to. The image data block 28 transferred to the graphic engine 11 is stored in the buffer memory 1
After being temporarily stored in 2, the buffer controller 18 controls the buffer controller 18 to read the data in screen frame units and sequentially transfer it to the reduction circuit 19.

The reduction circuit 19 reduces the transferred screen frame. Specifically, the number of pixels in the horizontal direction of the screen is reduced, the data in the vertical horizontal period is thinned out, and a reduced screen is generated in screen frame units.

The moving image data block 28 thus reduced in screen frame units is transferred to the buffer memory 22 via the buffer controller 18 as a reduced moving image data block.

Since the moving image data is transferred to the buffer at about 30 screens / second, the moving image data block 28 reduced by the reducing circuit 19 is reproduced as a continuous moving image.

Next, the processing of the program shifts to step S9. Here, a combination process of the reduced screen, the background, and the confirmed screen is performed. The host circuit 16 gives a command to the buffer controller 18, and the screen frame data 32 to 35 of the reduced screen is stored in the buffer memory 22 in addition to the temporarily stored moving image data block 28.

The background data is temporarily stored in the buffer memory 21 in advance, and the background data is stored in the buffer memories 21 and 22.
The data temporarily stored in is transferred to the adder 25 via the adders 23 and 24.

The respective data of the reduced screen, the background, and the finalized screen transferred to the adder 25 are subjected to a combining process here and output as menu screen data.

This menu screen data becomes menu screen data for displaying a menu screen 38 with a moving picture in which a moving picture screen 36 based on the reduced moving picture data block is synthesized as shown in FIG. The menu screen data thus generated is transferred to the subsequent stage processing circuit 13 in the next stage.

Next, the processing of the program is performed in step S10.
Move to. Here, the display processing of the menu screen with moving image for displaying the menu screen with moving image generated in the previous step is executed.

As shown in FIG. 1, the host circuit 16 transfers a command to the post-stage processing circuit 13 so as to convert the transferred menu screen data of the menu screen 38 with moving image into a video signal.

In response to this command, the post-stage processing circuit 13 performs a process of converting the menu screen data into a video signal. As described above, the post-processing circuit 16 is connected to a television monitor (not shown) via a video signal output terminal, and a menu screen with a moving image is displayed on the screen of the monitor.

Next, the processing of the program is performed in step S11.
Shift to the standby state.

In this standby state, the high speed feed / return mode (queue review mode) determination process is performed.

In this determination processing, as shown in FIG. 5, the pointer 37 displayed on the menu screen 38 is moved by a command output from the host circuit 16 linked to a command output from a remote controller (not shown). By moving the lever 39 on the high speed feed / return bar, the high speed feed / return mode is executed.

When the high speed feed / return mode is executed, the processing of the program proceeds in the y direction. The processes of steps S7 to S10 are executed again.

The host circuit 16 is linked to the command of the remote controller and linked to the movement of the lever 39 to sequentially generate the cue review address in the arbitrary forward or reverse playback direction. An instruction is output to the optical disc drive 1 so that the data of the moving image data block of the moving image displayed on the screen 38 is searched as the finalized screen data.

The optical disk drive 1 which received this command
Searches the screen frame in the moving picture data block 31 currently displayed on the menu screen according to the generated arbitrary address by the built-in optical pickup, and selects any moving picture data in the moving picture data block 31. To get.

This moving picture data is recorded in the optical disk drive 1
Is transferred to the buffer memory 8 via the bridge circuit 7 and temporarily stored in the buffer memory 8.

Further, the host circuit 16 is the bridge circuit 7
On the other hand, the moving image data temporarily stored in the buffer memory 8 is transferred to the demultiplexer 9 in the next stage. The moving image data transferred to the demultiplexer 9 further reaches the graphic engine 11 via the image expansion circuit 10.

The graphic engine 11 temporarily stores the moving image data transferred by the buffer controller 18 in the buffer memory 12, and then the reducing circuit 19 uses this moving image data as reduced moving image data 31 in the buffer 2.
Transfer to 2.

Further, the reduced moving image data 31 temporarily stored in the buffer memory 12 is transferred to the adder 25, and the background data temporarily stored in the buffer 21 and the reduced screens 32 to 32.
It is combined with 35 and is generated as menu screen data for displaying the menu screen 38 with a moving image.

Here, the moving picture screen 36 displayed on the menu screen 38 is a moving picture screen based on moving picture data corresponding to high speed forwarding / returning designated by an address generated by linking to the lever 39.

Every time the lever 39 is operated, the program repeats the processing of steps S7 to S11.

In the processing of step S11, if the lever 39 is not operated for a predetermined time, the processing of the program shifts to step S12 of the next stage, and the screen 36 of the moving image data 32 which is the confirmation screen currently displayed. Judgment processing for judging whether or not the display of is finished is performed.

If the display of the moving image screen 36 has not been completed, the process proceeds in the y direction, and steps S6 to S are performed.
The process of 12 is repeated. At this time, the host circuit 16 sets the address to the initial value address for searching the leading frame of the moving image data 32, and searches the moving image data 32 from the leading frame.

In this way, the operation of displaying the moving picture screen 36 based on the moving picture data 32 on the menu screen 38 is repeated.

At step S12, the moving image data 32
If the display of the video screen 36 based on is not finished,
The processing of the program proceeds to step S13 of the next stage to perform a determination processing of determining the end of the display of the menu screen 38.

If the menu screen 38 has not ended, the process moves to the n direction, and steps S6 to S13.
Repeat the process of.

In step S13, the menu screen 3
If it is determined that the process of step 8 is finished, the process of the program moves to the process of step S14 in the subsequent stage, and the end process is executed.

When the menu screen is terminated, a command such as the main part reproduction in the content of the video data to be reproduced is given to the host circuit 16 by the remote controller or the like.
When given to.

In this way, in this embodiment, in order to confirm the content of the video data to be reproduced, the menu screen 38 for displaying the moving picture screen 36 is generated, and on the menu screen 38, A reduced screen obtained by reducing the screen frames 32, 33, 34, 35 belonging to the respective moving image data blocks 28, 29, 30, 31 forming the image data, and a moving image data block in the image data obtained by designating the reduced screen. By reducing the size and displaying it together with the moving image screen 36, it becomes extremely easy to confirm the content of the video data to be reproduced.

Also, on the menu screen 38,
Since the moving picture screen 36 is displayed in the high-speed feed / return mode, it is easy to check the detailed contents of the video data.

Next, in addition to FIGS. 1 and 2, FIGS.
A second embodiment of the present invention will be described with reference to FIG.

FIG. 6 is a data structure diagram of contents of video data to be reproduced in the second embodiment.

As in the data structure diagram of FIG. 3, 28, 2
Reference numerals 9, 30, and 31 denote respective moving image data blocks that form video data. Further, 32 to 35 are screens of the first screen frame in each of the moving image data blocks 28 to 31.

The moving image data block 30 is the small moving image data blocks 301 to 303 to which the screen frames obtained by addressing the entire address value of this moving image data block at equal intervals and dividing.

The second embodiment of the present invention is realized by changing the program for operating the video data reproducing apparatus used in the first embodiment.

Therefore, also in the second embodiment, the circuit block of the video data reproducing apparatus of the first embodiment is used as the circuit block.

FIG. 7 is a diagram showing a flow chart of a program for executing the operation of the second embodiment. FIG. 8 is a diagram showing an example of a menu screen displayed by executing this program.

Similar to the first embodiment, this program is installed in the flash ROM 17, and the host circuit 16 operates according to this program. The program is composed of a total of 18 steps from step 15 to step 32. The host circuit 16 operates according to this program.

Step S15 is a starting process of this program.

Next, in the processing of the program, step S16
Then, the acquisition processing is executed with the reduced screen data corresponding to the screen frames 32 to 35.

This reduced screen data is shown in FIG.
This is generated by reducing the image data of the first frames 32 to 35 belonging to each of the moving image data blocks 28 to 31.

Next, in the processing of the program, step S17
Then, the reduced screen data of the first frames 32 to 35 of each frame and the background data are combined.

The combination of the reduced screen data and the background data is performed by the adder 25 in the graphic engine 11 according to the instruction output from the host circuit 16 shown in FIG. 1, and the combination of the reduced screen data and the background data is performed. The data becomes menu screen data for displaying the menu screen 38 shown in FIG.

In this way, the menu screen data generated by the graphic engine 11 is transferred to the post-stage processing circuit 13 in the subsequent stage.

Next, the program processing is step S18.
Then, the display process of the menu screen is performed.

At this time, the host circuit 16 gives a command to the post-stage processing circuit 13 to convert the menu screen data as composite data into a video signal.

A television monitor (not shown) is connected to the post-stage processing circuit 16 via a video signal output terminal, and the post-stage processing circuit 13 outputs a video signal obtained by converting the menu screen data to a television via the video signal output terminal. Transfer to John Monitor.

The menu screen shown in FIG. 8 is displayed on the screen of this television monitor.

This menu screen 38 is displayed in the screen frame 3
A reduced screen corresponding to 2-35 is displayed.

Next, the program proceeds to step S19 and enters the input standby state. In response to a command from the host circuit 16, the graphic engine 11 operates so as to synthesize the graphics of the pointer 37 on the menu screen 38.

The host circuit 16 controls the display position of the pointer 37 so as to move the graphics of the pointer 37 on the menu screen 38 in accordance with a command output from a remote controller (not shown) which gives a command from the user.

The reduced screens corresponding to the screen frames 32 to 35 displayed on the menu screen 38 are managed by the host circuit 16 in association with the search address of the moving picture data block to which it belongs.

The address data is stored in the internal memory of the host circuit 16 from the buffer memory 8 and is linked to the designation of the reduced screen on the menu screen 38 by the host circuit 1.
Selected by 6.

When the reduced screen of the screen frames 32 to 35 displayed on the menu screen 38 is designated by the pointer 37, the outline of the reduced screen becomes thick.

In this way, the reduction screen designation processing is performed. At the time when this designation process is performed, the program continues to wait for designation of the reduced screen.

As shown in FIG. 8, when the designation of the reduced screen 34 is completed, the reduced screen designated here enters a standby state to confirm the designated reduced screen 34.

In step S19, when the remote controller executes the confirmation process of the designated reduced screen 34, the process of the program shifts to step S20. In this step, the address values from the first frame to the last frame of the moving picture data block 30 to which the screen data of the reduced screen 34 belongs among the moving picture data blocks 28 to 31 forming the video data to be reproduced are subtracted, An address difference value from the first frame to the last frame corresponding to the block length of the data is obtained, and further divided into three equal parts to divide the moving image data block to which the designated screen belongs into small moving image data blocks 301 to 303.
The host circuit 16 obtains the addresses of the three points of the first frame by calculating.

Next, the processing of the program proceeds to step S21.
Then, the host circuit 16 transfers an instruction to the optical disc drive 1 so as to acquire the screen data of the first frame of the small moving image data blocks 301 to 303 based on the addresses of these three points.

Specifically, according to the addresses of these three points, the optical pickup causes each small moving image data block 30
The screen data of the first frames 1 to 303 are recorded,
By moving between recording positions on the disc, image data for one frame at each of three points is acquired.

Each 3 acquired by the optical disc drive 1
The screen data for one frame of points is temporarily stored in the buffer memory 8 via the bridge circuit 7.

Next, the processing of the program is performed in step S22.
Then, the menu screen data, which is the composite data, and the head data of one frame at each point are combined as a still image.

At this time, the host circuit 16 transfers an instruction to the bridge circuit 7 so that the screen data for one frame at each of the three points temporarily stored in the buffer memory 8 is transferred to the demultiplexer 9 in the next stage. To do.

In accordance with this instruction, the bridge circuit 7 sets each 3
Screen data for one frame of points is demultiplexed 9
Transfer to. After that, the screen data for one frame of each of the three points is passed through the video expansion circuit 10 and the graphic engine 11
Transferred to.

Further, the host circuit 16 temporarily stores the transferred one-frame screen data of each of the three points in the buffer 12 and performs a process of combining with the menu screen data for generating the menu screen 38.

Specifically, the screen data for each one frame of three points is reduced by the reduction circuit 19 in the graphic engine 11, and the menu screen 38 is displayed in the adder 25.
Is combined with the menu screen data for generating.

After the completion of this synthesizing process, the graphic engine 11 transfers the menu screen data to the post-stage processing circuit 13 in the subsequent stage.

Next, the processing of the program proceeds to step S23.
Then, the process for displaying the menu screen 38 is executed by the combined screen and the menu screen data obtained by combining the image data of still images of one frame of three points.

At this time, the host circuit 16 gives a command to the post-stage processing circuit 13 to convert the menu screen data as composite data into a video signal.

A television monitor (not shown) is connected to the post-stage processing circuit 16 via a video signal output terminal, and the post-stage processing circuit 13 outputs a video signal obtained by converting menu screen data to a television via the video signal output terminal. Transfer to John Monitor.

The menu screen shown in FIG. 8 is displayed on the screen of this television monitor.

As shown in the menu screen 38 of FIG. 8, reduced screens 32 to 35 and a reduced screen 34 are displayed on the menu screen.
The reduced screens 361, 362, 363 of the leading frames of the small moving image data blocks 301, 302, 303 that constitute the moving image data block 30 to which is included are combined and displayed.

Next, the program shifts to the processing of steps S24 to S29.

The processing in steps S24 to S29 is processing for automatically and cyclically displaying, as a moving image, a screen based on the small moving image data blocks 301, 302, 303 to which the reduced screens 361 to 363 on the menu screen 38 belong.

First, in the processing of step S24, the host circuit 16 sets the initial value 1 to the variable N set in the internal memory.
give.

Further, the processing of the program is performed in step S25.
The process shifts to and the process of acquiring the moving image data based on the address of the N point is performed. Since the initial value of N is 1, at this time, the host circuit 16 transfers an instruction to the optical disc drive 1 so as to acquire the moving image data of the small image data block 301 based on the address.

The acquired data of the small moving image data block 301 reaches the graphic engine 11 via the bridge circuit 7, the demultiplexer 9 and the image expansion circuit 10.

Reduction circuit 1 in the graphic engine 11
The data of the small screen data block is reduced by 9, and is combined with the menu screen 38 and displayed as a small screen 361 of the moving image.

At this time, the small moving image data block 302,
The screen frame data belonging to 303 is combined with the menu screen data in a still image state and displayed as reduced images 362 and 363 on the menu screen 38.

As described above, the menu screen data 38 is
Video data blocks 28-3 recorded on the optical disk
One of the reduced screens corresponding to 1 is designated, linked to the designated reduced screen 34, the moving image data block 30 is searched based on the address stored in the memory in the host circuit 16, and the searched moving image data block 30 is searched. Of the small moving image data blocks 301 to 303 are reduced, and the small moving image data block 301 of the small moving image data blocks 301 to 303 is used as a moving image, and one frame in the small moving image data blocks 302 and 303 is converted into a still image. To generate menu screen data for displaying the menu screen 38. This is the first mode for generating menu screen data.

Next, the processing of the program proceeds to step S27.
The host circuit 16 moves to the small moving image data block 30.
It is determined whether the display of 1 is finished. Specifically, it is determined that the display of the small moving image data block 301 has ended because the reproduction of the reduced screen 361 of the final frame in the small moving image data block 301 has ended.

In this step, if it is not determined that the display of the small moving image data block 301 is completed, the process proceeds in the y direction, and if it is determined, the process proceeds in the n direction.

Next, the processing of the program proceeds to step S28.
Transition to. Here, the next small moving image data block 30
In order to obtain 2, the process of incrementing the variable in the host circuit 16 by 1 is performed. Since the initial value of N is 1, the new N is increased by 1 to 2.

Next, the processing of the program is performed in step S29.
Move to. At this time, the host circuit 16 determines whether or not the pointer 37 designates any one of the reduced screens 32 to 37 by an instruction output from a remote controller (not shown). Here, if a new reduced screen is designated, the process proceeds in the y direction.

Here, if a new reduced screen 32 is designated, the processing of the program is performed again in step S20.
~ Step S28 is repeated, the moving image data block 28 is searched by the address linked to the reduced screen 32, this moving image data block 28 is acquired, and a small moving image obtained at three equally spaced addresses in this data block. The menu screen data for generating the menu screen 38 is generated by converting the screen data of the three points belonging to the data block into reduced screen data.

If no new reduced screen is designated, n
Direction, the process proceeds to step S30.

In step S30, a process for determining whether or not the reproduction of the last small moving image data block 303 has been completed is performed. Specifically, it is determined whether or not the value of the variable N exceeds the number of small moving image data blocks. Here, according to the example of the image data block 30, the value to be compared is set to 3, which corresponds to the number of small moving image data blocks.

This value is determined by the number of divided small moving image data blocks.

Here, if a new reduced screen 32 is not designated, the processing of the program proceeds to step S31.
Transition to. In this step S31, the menu screen 3
A process for determining whether or not the display of 8 has been completed is performed.

Here, if the display of the menu screen 38 is not completed, the steps S24 to S3 are executed again.
The process of 0 is repeated.

That is, before the display of the menu screen 38 is completed, the reduced screens 361, 362 and 363 of the small moving image data blocks are cyclically displayed as moving images.

Since the value of N is 2 at present, the reduced screen 362 is displayed as a moving image on the menu screen 38.

At this time, the host circuit 16 retrieves the small moving image data block 302 from the small moving image data blocks 301 to 303 based on the address stored in the built-in memory to make it a moving image, and the small moving image data blocks 301, 30.
One frame in 3 is combined as a still image to generate menu screen data for displaying the menu screen 38. This is the second mode for generating menu screen data.

In this embodiment, the reduced screens 361, 362 and 363 on the menu screen 38 are cyclically displayed by repeating the first mode and the second mode. As described above, in the second embodiment of the present invention, the screen data of the screen frame belonging to each moving image data block 28, 29, 30, 31 forming the video data is displayed on the menu screen 38 as the reduced screen 32. , 33, 34,
35 on the menu screen 38, and further, screen data for each one frame in the small moving image data blocks 301, 302, 303 obtained by dividing each specified moving image data block 30 is displayed as a reduced screen 361, 362, 363 on the menu screen. 38, and the small moving image data blocks 301, 302, 303 can be sequentially and cyclically and automatically displayed on the menu screen 38, making it very easy to confirm the content of the video data to be reproduced. Become.

Although the video data is described as a single content in the first and second embodiments of the present invention, the video data may be configured by collecting a plurality of independent contents.

For example, the first moving image data block and the second moving image data block
The content of each time in the serial drama of the television broadcast may be respectively allocated to the moving image data block of, and the video data may be configured by the content of each time.

Thus, the first moving image data block,
Even if the second moving image data block is based on independent content, the same effects as those of the first and second embodiments can be obtained.

[0182]

As described above, according to the present invention,
It is possible to provide a video data reproducing device and a video data reproducing method which are effective in confirming an arbitrary part in the content of video data.

[Brief description of drawings]

FIG. 1 is a block diagram of a video data recording / reproducing device.

FIG. 2 is a block diagram of a graphic engine 11.

FIG. 3 is a diagram showing a structure of content of video data.

FIG. 4 is a diagram showing a flowchart of a program.

FIG. 5 is a diagram showing an example of a menu screen.

FIG. 6 is a data structure diagram of content of video data.

FIG. 7 is a diagram showing a flowchart of a program.

FIG. 8 is a diagram showing an example of a menu screen.

[Explanation of symbols]

38 ... Menu screen 32, 33, 34, 35 ... Reduced screen 36 ... Reduced screen (video) 11 ... Graphic engine 16 ... Host circuit 12, 21, 22 ... Buffer memory 19 ... Reduction circuit 18 ... Buffer controller 25 ... Adder

Claims (6)

[Claims] 1. In order to reproduce video data composed of at least two moving image data blocks composed of a plurality of screen frames, a memory for storing an address for searching the screen data of the screen frame is provided, and the address is stored. A video data playback device that searches for and plays back the video data by means of:
The first reduced screen data obtained by reducing the first screen frame belonging to the first moving image data block, and the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block.
Menu screen generating means for generating menu screen data for displaying the menu screen on which the first reduced screen and the second reduced screen are displayed by synthesizing the reduced screen data and the background data. When the first reduced screen or the second reduced screen is designated, the first moving image data block to which the first screen frame belongs or the second moving image data block to which the second screen frame belongs is reduced. Reduced screen generating means for processing and generating a reduced moving image data block; the reduced moving image data in the menu screen data obtained by combining the first reduced screen data, the second reduced screen data and background data. A moving image synthesizing unit for synthesizing blocks and the moving image synthesizing unit synthesizes the reduced moving image data blocks with the menu screen data, Video data reproducing apparatus, characterized in that provided with the video signal output means for outputting as a video signal for display. 2. In order to reproduce video data composed of at least two moving image data blocks composed of a plurality of screen frames, a memory for storing an address for searching the screen data of the screen frame is provided, and the address is stored. A video data playback device that searches for and plays back the video data by means of:
The first reduced screen data obtained by reducing the first screen frame belonging to the first moving image data block, and the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block.
Menu screen generating means for generating menu screen data by synthesizing the reduced screen data and the background data, and a first reduced screen or a second reduced screen based on the first reduced screen data combined with the menu screen data. Reduced screen designation means for designating a second reduced screen based on reduced screen data, and when the first reduced screen or the second reduced screen is designated by the reduced screen designation means, stored in the memory. From the address, the first address for searching the first video data block, or
Data search means for searching the first moving image data block or the second moving image data block based on a second address for searching the second moving image data block; Reduced screen generation means for reducing the first or second moving image data block to generate a reduced moving image data block, the first reduced screen data, the second reduced screen data, and background data. A video signal for displaying a menu screen by the moving picture synthesizing means for synthesizing the reduced moving picture data block and the menu screen data obtained by synthesizing the reduced moving picture data block on the menu screen data And a video signal output means for outputting as a video data reproducing device. 3. The reproduction forward direction or reproduction reverse direction address of the first or second moving image data block combined with the menu screen data is displayed while the menu screen data combined by the moving image combining means is displayed. Cue review address generating means for sequentially generating, and the first or the second designated by this address.
Moving image data blocks belonging to the moving image data block are searched by the data searching means, the moving image data blocks are reduced by the generating means into reduced moving image data blocks, and the moving image synthesizing means synthesizes them to generate menu screen data. The video data reproducing apparatus according to claim 1, wherein the video signal outputting means outputs the video signal as a video signal for displaying a menu screen. 4. A memory for storing an address for retrieving screen data of the screen frame in order to reproduce video data composed of at least two moving image data blocks composed of a plurality of screen frames, and the address. A video data reproducing apparatus for searching for and reproducing the video data according to the first video frame, which is a first screen frame belonging to a first video data block of the two video data blocks.
Menu screen generating means for generating menu screen data by synthesizing the reduced screen data, the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block, and the background data, First reduced screen designating means for designating a first reduced screen based on the first reduced screen data combined with the menu screen data or a second reduced screen based on the second reduced screen data, and the reduced screen designation A first address for searching the first moving image data block from the addresses stored in the memory when the first reduced screen or the second reduced screen is designated by the means, or
Data search means for searching the first moving picture data block or the second moving picture data block based on a second address for searching the second moving picture data block; One of the first and second moving image data blocks is divided into at least a third moving image data block and a fourth moving image data block, and a reduced screen generating unit that performs a reducing process, and for the menu screen data, Then, one frame of data in the third moving image data block is set as a still image, and
The first display mode for synthesizing the moving image data block as a moving image and the second display mode for synthesizing the third moving image data block as a still image and one frame of data in the fourth moving image data block as a moving image in sequence. It is characterized by comprising a moving picture synthesizing means for switching and synthesizing and outputting, and a video signal output means for outputting the menu screen data outputted by the moving picture synthesizing means as a video signal for displaying the menu screen. Video data playback device. 5. In order to reproduce video data composed of at least two moving image data blocks composed of a plurality of screen frames, the video data is searched and reproduced by an address for searching the screen data of the screen frame. A video data reproducing method, which is a first video data block belonging to a first video data block of the two video data blocks.
First reduced screen data obtained by reducing the screen frame of
A menu screen generating step of generating menu screen data by combining the second reduced screen data obtained by reducing the second screen frame belonging to the second moving image data block and the background data; and combining the menu screen data with the menu screen data. A reduced screen designating step for designating a first reduced screen based on the first reduced screen data or a second reduced screen based on the second reduced screen data; and the first reduced screen by the reduced screen designating means. Alternatively, when the second reduced screen is designated, the first
Of the first moving picture data block or the second moving picture data block based on the first address for searching the moving picture data block or the second address for searching the second moving picture data block. A data search step of searching; a reduced screen generation step of reducing the first or second moving image data block searched in the data search step to generate a reduced moving image data block; and the first reduced screen The reduced moving image data blocks are combined in the moving image synthesizing step of synthesizing the reduced moving image data blocks and the moving image synthesizing step with the menu screen data obtained by synthesizing the data, the second reduced screen data and the background data The above menu screen data is used as a video signal for displaying the menu screen. Video data reproducing method characterized by comprising a video signal output step of outputting. 6. In order to reproduce video data composed of at least two moving image data blocks composed of a plurality of screen frames, the video data is searched and reproduced by an address for searching the screen data of the screen frame. A method for reproducing video data, comprising: a first reduced screen data obtained by reducing a first screen frame belonging to the first moving image data block among the two moving image data blocks and a second moving image data block. A menu screen generating step of generating menu screen data by synthesizing second reduced screen data obtained by reducing the belonging second screen frame and background data; first reduced screen data synthesized with the menu screen data A first reduction screen based on the first reduction screen or a second reduction screen based on the second reduction screen data. When the first reduced screen or the second reduced screen is designated by the screen designation step and the reduced screen designating unit, the first moving image data block is searched from the addresses stored in the memory. The first address to do
A data search step of searching the first video data block or the second video data block based on a second address for searching the second video data block; A reduced screen generating step of dividing at least one of the first and second moving image data blocks into at least a third moving image data block and a fourth moving image data block, and performing a reducing process; Then, one frame of data in the third moving image data block is set as a still image, and
The first display mode for synthesizing the moving image data block as a moving image and the second display mode for synthesizing the third moving image data block as a still image and one frame of data in the fourth moving image data block as a moving image in sequence. And a video signal output step of outputting the menu screen data output in the video composition step as a video signal for displaying a menu screen. Video data playback method.