JPH0687256B2 - Pseudo video device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a pseudo moving image device, and more specifically, a plurality of image outputs are simultaneously imaged, and each image output screen is sequentially changed to obtain a large pseudo image. The present invention relates to a device for obtaining moving image.

<< Prior Art >> Conventionally, a display device that constitutes one screen by a plurality of display devices arranged vertically and horizontally is a plurality of display devices (102) a to (102) arranged vertically and horizontally as shown in FIG. d, and a plurality of video output devices (for example, video tape recorders) that output image signals for displaying images on each display device (101) a
To (101) d and the video output device in synchronization with each other, the control unit (10) for controlling the start of output of the video signal and the like.
3) consists of and. This device is a video output device (101) a
To (101) d are corresponding display devices (102) a to (10).
2) The divided screen corresponding to the display position of d is previously recorded (stored) as a video signal, and the control unit (103)
Each of the video output devices (101) a to (101) d simultaneously starts to output video signals, and each video output device (101)
display devices (102) a to (10) corresponding to a to (101) d
2) Display screen 1 according to the entire d. That is, for example, when displaying the character "A" on the display devices (102a) to (102) d as shown in FIG. 8, the video output device (1
Video signals (a) to (d) of split screens are stored in 01) a to (101) d, respectively. Then, the video signals of the respective video output devices (101) a to (101) d are simultaneously displayed on the corresponding display devices (102) a to (102) d to display the image of "A" as a whole.

Further, as shown in another conventional example (FIG. 9), there is a device for enlarging and displaying the input video signal of 1. An example of a display device in which the horizontal scanning direction and the vertical scanning direction are each doubled and the area ratio is four times will be described below with reference to FIGS. 9 and 10.

Reference numeral (104) denotes a main body, (105) a to (105) d denote display devices, and the main body (104) divides a horizontal scanning period and a vertical scanning period of an input video signal into each display device (10).
5) Output to a to (105) d. In the display devices (105) a to (105) d, the divided video signals from the main body (104) are input and one screen is displayed as a whole. Display device (10
5) a to (105) d are the display device (105) a, the display device (105) b, and the like from the horizontal scanning start side (left in the drawing) to the upper stage in the horizontal scanning direction as shown in FIGS. 9 and 10. The screen when the display device (105) c and the display device (105) d are arranged in the lower stage from the horizontal scanning start side and displayed on the display device (105) ′ before the input video signal is enlarged. The character "A" displays one screen "A" on the entire display device (105) a to (105) d.

The main body (104) includes a decoder device (107), a controller (108), an A / D converter (109), a frame memory (106),
It is composed of a D / A converter (110), an encoder (111), and the like.

The one video signal input to the main body (104) is input to the decoder device (107), and each frame memory (106) a as an image signal digitized by the A / D converter (109).
Through (106) d.

The frame memory (106) a stores the digitized image signal. In the frame memory (106) a, a pre-enlargement image displayed on the display device (105) 'shown in FIG. 10 is displayed by a control signal from the controller. Display of images of (105)
The signal corresponding to the image received after being enlarged in a is controlled to be sequentially stored, and the signal is stored as a divided image signal. Similarly, the frame memories (106) b to (106) d
However, each of the display devices (105) b to (10) at the corresponding positions in the image before enlargement of the display device (105) 'shown in FIG.
5) Controlled so as to sequentially store signals corresponding to the image received after enlargement in d, and store the signals as divided image signals. The stored divided image signals are transferred from the frame memories (106) a to (106) d to the controller (108).
A series of input signals of the same screen are simultaneously read by the control signal of.

The read divided image signals are D / A converters (11) corresponding to the frame memories (106) a to (106) d, respectively.
0), encoder (111) and corresponding display device (10
5) Output to a to (105) d. The signal output at this time is an analog video signal that the display device (105) a can input as a video signal and can receive an image.
The display device (105) a receives this video signal and reproduces it as a normal video. Display devices (105) b to (105)
Similarly in d, the image is reproduced as a normal image.

<< Problems to be Solved by the Invention >> However, the conventional device shown in FIG. 7 has a problem that all the images to be displayed must be divided and created in advance, and the images are displayed on each display device. An output device is indispensable. For example, when the display device is composed of 16 display devices each having 4 rows and 4 columns, 16 image output devices (for example, a video tape recorder) are also required, and there is a problem that the entire device becomes large-scale. did.

On the other hand, in the conventional example shown in FIG. 10, when one input video signal is divided into a plurality of divided video signals and the divided video signals are displayed, the divided video signals are made redundant by the enlargement ratio and divided by the enlargement ratio in each scanning direction. Must be displayed as having the same pixels,
There is a problem that the image quality of each display device deteriorates, and the image quality during enlarged display also deteriorates. It is an object of the present invention to solve these various problems.

<< Means for Solving the Problem >> Therefore, the present invention includes a plurality of frame memories in which images are stored in advance, an image storage device capable of reading images under the control of the control device, and an arbitrary frame memory depending on the activation cause. A plurality of images can be read out at the same time, and a control device capable of storing the reading order of the frame memories to be read out and controlling the reading of the images in the plurality of frame memories in the stored order according to the activation cause is provided. By providing the pseudo moving image device, the above-mentioned various problems are solved, and the conventional problems are solved.

<< Operation >> In each frame memory, the screens of a plurality of divided scenes are stored in advance on each display of the display unit, and at this time, each stored frame memory is given a number. Next, a frame memory for image output is assigned to the control device so that it can be displayed at each time, and a frame memory for image output at the next designated time is assigned and can be displayed. In this way, display screens at designated times are sequentially assigned to determine the reading order.

Then, the contents of the frame memory are sequentially read out at a designated time in accordance with a predetermined reading order.

When an external factor causes the display on the next display screen to be displayed, the contents of the frame memory are sequentially read according to the reading order when the external factor occurs.

<< Embodiment >> Hereinafter, a block diagram showing the first embodiment, FIG. 2 showing the display state, FIG. 3 showing the storage state of the image storage device, and FIG. 3 showing the display state. An embodiment of the present invention will be described with reference to FIG. 4 and FIGS. 5 and 6 (a) to 6 (h) which are explanatory diagrams of the pseudo moving image of the second embodiment.

(1) is a pseudo moving image device of the present invention. The pseudo moving image device (1) includes a separation A / D conversion device (2), a timing signal generation device (3), an image storage device (4), a synthetic D / A conversion device (5), a display unit (6), and , Control devices (7)
Consists of.

The pseudo moving image device (1) shown in this embodiment has a display unit (6).
Is an embodiment of a screen divided into four, which is composed of displays arranged in two columns vertically and horizontally. Of course, the vertical and horizontal arrangements may be more than that, and as shown in FIG. 2, the display unit (6) may be composed of 16 screens of 4 columns each in the vertical and horizontal directions.

The separation A / D conversion device (2) is a device for storing the divided images in the image storage device (4) in advance, and separates the synchronization signal component and the image signal component from the input video signal to obtain the synchronization signal component. Can be output to the timing signal generator (3), the separated image signal can be converted into a digital image signal, and the digital image signal can be output to the image storage device (4).

The timing signal generator (3) receives the timing signal from the separation A / D conversion device (2) and outputs the separation A / D conversion device (2), the image storage device (4), and the synthesis D / A conversion device (5). ), The display unit (6), and the control unit (7) function as a timing signal for instructing the operation timing of the separated A / D conversion unit (2), the image storage unit (4), the composite D / A. It is possible to output to the conversion device (5), the display unit (6), and the control device (7).

The image storage device (4) includes a plurality of frame memory groups (41)
~ (44), each frame memory group (41) ~ (4
The divided images are stored in 4) so that a plurality of screens can be formed when they are displayed on the display unit (6). This divided image is displayed on one screen of the image signal input to the separation A / D conversion device (2) vertically and horizontally into a portion corresponding to each display of the display unit (6). It is a partial signal. That is, the frame memory group (41) ~
(44) can store the divided image signals, and the divided images of the corresponding display positions (61) to (64) can be stored. Each frame memory group (41) to (44) is configured to correspond to each display (61) to (64),
The frame memory group (41) is further composed of frame memories (41) a to (41) d capable of storing divided images. Similarly, the frame memory groups (42) to (44) are respectively frame memories (42) a to. (42) d, (43) a to (43) d, (44) a
~ (44) d. The frame memory group (41) can store image signals of four different types of screens in the frame memories (41) a to (41) d. Similarly, the frame memory groups (42) to (44) can also store the image signals. (42) a ~
Image signals of four different types of screens can be stored in each of (42) d, (43) a to (43) d, and (44) a to (44) d.
Therefore, the image storage device (4) as a whole can store images of 16 types of screens. In addition, as shown in FIG.
Is composed of 16 displays (61) a to (61) p in four rows and four columns, each of the displays (61) a to (61) p.
16 frame memory groups are provided to correspond to, and each frame memory group is, for example, a frame memory group (41).
The pseudo moving image device (1) can be configured by including four frame memories so that each of them has the frame memories (41) a to (41) d. Of course, the other display devices (6) can be configured by similarly configuring the image storage device (4) with the number of vertical and horizontal rows.

The composite D / A conversion device (5) receives the digital image signal from the image storage device (4), converts it into an analog image signal that can be displayed on the display unit (6), and at the same time displays the display unit (6). It is possible to synthesize the sync signals and so on necessary for image display in the and output to the display unit (6), and the synthetic D / A conversion unit (51) corresponding to the frame memory group (41), as well as the frame memory. It is composed of synthetic D / A converters (52) to (55) corresponding to groups (42) to (44).

The display unit (6) is composed of displays (61) to (64), and is arranged so that all the parts obtained by vertically and horizontally dividing the display screens of the displays (61) to (64) form one screen.

The control device (7) includes frame memories (41) a to (41) d, (42) a to (42) d, which constitute the frame memory groups (41) to (44) of the image storage device (4). (43) a
To (43) d, (44) a to (44) d to store arbitrary divided images respectively, the image signals from the combined / separated A / D converter (2) to the image storage device (4) are stored in each frame memory. Can be controlled to be selectively stored in the display unit (6), and when displayed on the display unit (6), an arbitrary screen is selected from each of the frame memory groups (41) to (44), and each display (61) is selected. To (64), and each display (61) to (64) outputs to the display unit (6) so that one screen can be composed by the divided images from the selected frame memory group (41) to (44). It is possible to control the image signal to be used. In the frame memory group (41), an image signal to be output to the display section (6) is selected by selecting one of the frame memories (41) a to (41) d, which is stored in a divided manner, and is displayed (61). It is a divided image signal that is output from each of the frame memory groups (41) to (44) to each of the displays (61) to (64), as described above. To do.

A pseudo moving image can be displayed by continuously outputting the image signals to be output to the display section (6) from each of the frame memory groups (41) to (44) continuously due to the activation cause. The order can be stored in advance. or,
The cause of the continuous and repeated display may be every fixed time period or may be synchronized with the information from the outside, for example, the rhythm of music, or the display timing of one screen may be activated each time by a switch. Various methods are conceivable, such as a configuration in which the cause is designated.

In the pseudo moving image device (1) configured as above, the signals read by the frame memory group (41) are combined into the D / A converter (5).
The divided image signal input to 1) and converted and synthesized by the synthesis D / A converter (51) is output to the display (61) and displayed as an image on the display (61). Similarly, the images stored in the frame memory groups (42) to (44) are also respectively passed through the composite D / A converters (52) to (54) and displayed (61).
Displayed by ~ (64).

Therefore, the process from the storage of the image signal in the image storage device (4) to the transfer of the pseudo moving image to the display unit (6) will be sequentially described below.

First, the control device (7) stores the image signal having the image to be stored in the frame memory (41) a in the frame memory (41) a of the frame memory group (41).
And input a video signal having this image signal to the separation A / D conversion device (2). Then, the separation A / D converter (2) separates the sync signal from the input video signal and outputs it to the timing signal generator (3).
The separated image signal is converted into a digital image signal and output. The digital image signal output at this time is controlled by the control device (7) so that the frame memory (41) a stores the divided image signal, and the frame memory (41) a stores the digital image signal. The divided image signal stored in the frame memory (41) a is an image displayed on the display (61) of the display unit (6), and the display (61) to
(64) Since the whole image is an image of a partial screen that constitutes one screen, the operator selects it in consideration of the overall screen configuration, purpose, and the like. Similarly, the frame memories (41) b to (41) d,
(42) a to (42) d, (43) a to (43) d, (44) a to (4
4) Operate the control device (7) for each image signal to be stored in d, and separate the video signal from the A / D conversion device (2)
To be stored in advance as divided image signals.

An example of the decomposed image signals stored one after another in this way is shown in FIG. The image stored in the frame memory (41) a (4
1) Save the images stored in A and the frame memory (41) b into (4
1) B, the image stored in the frame memory (41) c is (4
1) C, the image stored in the frame memory (41) d (4
1) D respectively, similarly, the image stored in the frame memory (42) a is stored in (42) A, the image stored in the frame memory (42) b is stored in (42) B, and the frame memory (42) c. The image stored in (42) C, the image stored in frame memory (42) d is (42) D, the image stored in frame memory (43) a is (43) A, and the image stored in frame memory (43) b is (43) B, the image stored in the frame memory (43) c is (43) C, the image stored in the frame memory (43) d is (43) D, the image stored in the frame memory (44) a is (44) ) A, the image stored in the frame memory (44) b is (44) B, the image stored in the frame memory (44) c is (44) C, and the image stored in the frame memory (44) d is (44) D. , Respectively.

The divided images stored in this way are controlled by the control device (7).
Is read from the image storage device (4). That is, the frame memory group (41) of the image storage device (4)
The operator instructs the control device (7) to select one by one from the divided images stored in (44) and sequentially read the selected images into the display section (6). At this time, frame memory group (41)
The sequence of sequentially reading the first screen, the second screen, ... Of the frame memories (42) to (44) is similarly programmed in advance. Incidentally, the timing of sequential reading is instructed in advance to the control device (7) to periodically read from the frame memory groups (41) to (44) at regular time intervals, and such reading is performed. In this embodiment, the frame memory group (4
The reading order of 1) to (44) is the frame memory group (41).
Then, the divided image signals (41) A, (41) B, of the images shown in FIG.
(41) c, (41) d in that order, and the frame memory group (4
2) to (44) are performed in the same manner. Therefore, the image on the first screen is divided image signals (41) A, (42) A, (43) A, (44) A, and the image on the second screen is The image is divided image signal (41) B, (42) B,
(43) B, (44) B, the image on the 3rd screen is divided image signals (41) C, (42) C, (43) C, (44) C, and the image on the 4th screen Is the divided image signal (41) D, (42) D, (43) D,
(44) D, and it is assumed that the fifth screen and the subsequent screens are repeated displays from the first screen. Further, in this embodiment, the control device (7) is configured so that the frame memory groups (41) to (4
Although it is read from 4) at regular intervals, it may be read when a sensor (not shown) senses an external stimulus, for example, a stimulus such as sound or light, and the control device (7) The frame memories (41) to (44) may be selected and read at these timings.

The divided image signal (41) A of the first screen read from the frame memory group (41) instructed by the control device (7) is read to the composite D / A conversion device (51) and combined D
The A / A converter (51) inputs the digitized divided image signal (41) A, and the display (61) of the display section (6).
In addition to converting into an analog image signal capable of displaying an image, a synchronizing signal and the like necessary for displaying an image are combined and output to a display (61).

Then, in the display (61), the composite D / A converter (5
The analog divided image signal (41) A from 1) is displayed. Similarly, other divided image signals (42) are displayed on the first screen.
A, (43) A, (44) A are also frame memory groups (42) ~
It is read from (44) and displayed on the displays (62) to (64) through the combined D / A converters (52) to (54). The display screen at this time is screen (71) A shown in FIG.

Next, the display device (6) continues to display the screen (71) A until a fixed time interval elapses, and after the elapse of the fixed time interval, the control device (7) again displays the image of the second screen in the image storage device (4). Instruct to read. Then, in the frame memories (41) to (44), the frame memories (41) b, (4
2) b, (43) b, (44) b stored divided image signals (41)
B, (42) B, (43) B, (44) B are read out and displayed on the display device (6) through the composite D / A conversion device (5) in the same manner as the first screen, and the second screen at this time is displayed. The image on the screen becomes the screen (71) B shown in FIG.

Similarly, after a certain period of time, the divided image on the third screen (41)
C, (42) C, (43) C, (44) C are frame memory groups (4
The images (71) C of the third screen are displayed on the display section (6) through the combined D / A conversion device (5) read out from 1) to (44). Similarly, the divided image signals of the fourth screen (41) D, (42)
D, (43) D, (44) D are also frame memory groups (41) to (4
The image (71) D is displayed on the display device (6) through the combined D / A conversion device (5) read out from 4). The fifth and subsequent screens are repeated from the first screen.

Therefore, in the image displayed on the display device (6) of this embodiment, a small elliptical image is gradually enlarged and returned to the first small elliptical image, gradually enlarged, and this is repeated. . In addition, the same frame memory group (4
By slightly changing the program to the control device (7) by using the divided image signals of 1) to (44), that is, the 1st to 4th screens are displayed in the same manner as described above, and the 5th to 8th screens are displayed.
The screens are displayed in reverse order of the 1st to 4th screens as the 4th screen, the 3rd screen, the 2nd screen, and the 1st screen, and the 9th screen and thereafter are repeatedly displayed from the 1st screen to the 8th screen. With this, it is possible to display a pseudo moving image in which a small elliptical image does not gradually become larger, then gradually becomes smaller, and this is repeated by instructing the control device (7) in advance. is there.

A second embodiment, which is another embodiment, is shown in FIG.

In the second embodiment, the divided image signals (4
1) A ~ (41) D, (42) A ~ (42) D, (43) A ~ (43)
Instead of D, (44) A to (44) D, new divided image signals (41) A to (41) D, (42) A to (42) D, shown in FIG.
(43) A to (43) D, (44) A to (44) D are frame memories (41) a to (41) d, (42) a to (42) d, (43) a to
(43) d, (44) e to (44) d are stored.

Also in the second embodiment, the procedure for storing the divided images in the image storage device (4) and the procedure for reading the divided images from the image storage device (4) are the same as in the first embodiment. Therefore, the control device (7) selects the divided image signals on the respective screens so as to obtain the screens shown in FIGS. 6a to 6h and sequentially reads them from the frame memory groups (41) to (44) in advance. Program the controller (7). That is, in the first screen shown in FIG. 6a, the divided images (41) stored in the frame memory (41) a, the frame memory (42) d, the frame memory (43) d, and the frame memory (44) d, respectively. ) D,
Display (42) D, (43) D, (44) D (61) to (6
Display each in 4). Then, on the second screen, FIG.
Split images (41) B, (42) A, (43) D, (44) as shown in
D, hereinafter, on the 3rd screen, divided images (41) d, (42) B, (43) D, (44) D as shown in FIG. 6c, and on the 4th screen, FIG. 6d. Divided images (41) D, (42) C,
(43) C, (44) D, on the fifth screen, as shown in FIG. 6e, divided images (41) D, (42) D, (43) D, (44) A, and sixth image
On the screen, as shown in Fig. 6f, the divided image (41) D,
(42) D, (43) B, (44) B, the 7th screen, FIG.
Divided images (41) D, (42) D, (43) D, (44)
On the 8th screen of A, the divided images (41) C, (42) D, (43) C, (44) D are sequentially displayed as shown in FIG.
The control device (7) controls reading from the image storage device (4) so that the first screen to the eighth screen are repeatedly and sequentially displayed from the screen onward, and the image storage device (4) performs such reading. To do. Therefore, the display image of the display device (6) according to this embodiment will display an image in which the fish rotates clockwise when the fish moves inside the display device (6).

In both the first and second embodiments, the frame memory groups (41) to (44) correspond to the displays (61) to (64), respectively, and the image displayed on the display (61) is the frame memory. The image read from the group (41) and displayed on the display (62) is read from the frame memory group (42), and the image displayed on the display (63) is read from the frame memory group (43) and displayed (64).
It is explained that the image displayed on the screen is read from the frame memory group (44), but the display (61) to (64) and the frame memory group (41) to (44) to be displayed in particular.
Does not correspond to, for example, in which frame memory group (41) to (44) the image to be displayed on the display (61) is displayed.
It is also possible to read from, and it is also possible to express a more complicated pseudo moving image.

<< Effect >> As described above, according to the present invention, a plurality of still images are combined and displayed on the display device, and thus it is possible to display a pseudo moving image having a pseudo motion. Furthermore, VT
There are few sources such as R, it is possible to record pseudo moving images repeatedly without recording to these sources for a long time.
Since each image of the display device outputs one image without being subjected to processing such as redundancy, the resolution is also improved.

[Brief description of drawings]

FIG. 1 is an explanatory block diagram showing a first embodiment of the present invention, FIG. 2 is an explanatory diagram showing a display state, and FIG. 3 is an explanatory diagram of a storage state of an image storage device of the first embodiment. Yes, FIG. 4 is an explanatory diagram showing a display state, and FIGS. 5 and 6 (a) to 6 (h) are explanatory diagrams of a pseudo moving image of the second embodiment. 7 to 10 are explanatory views of a conventional example. (1) ... Pseudo video device, (4) ... Image storage device, (41)-(44) ... Frame memory group, (41) a- (41) d, (42) a- (42) d , (43) a ~ (4
3) d, (44) a to (44) d …… frame memory, (6) …… display device, (61) to (64) …… display, (7) …… control device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nao Haga 1-26-5 Toranomon, Minato-ku, Tokyo, NTT DATA Communication Co., Ltd. 5-14-15 Meiko Multiart Co., Ltd.

Claims (1)

[Claims] 1. A plurality of frame memories in which images are stored in advance, an image storage device capable of reading images under the control of a control device, and a plurality of images in arbitrary frame memories can be read simultaneously due to activation. A pseudo moving image device, comprising: a control device capable of storing a reading order of a plurality of frame memories to be read and capable of reading an image of the plurality of frame memories in a stored order according to a start cause.