JPH05328270A - Still picture exhibition system - Google Patents

Abstract

PURPOSE:To implement picture display effect processing while eliminating deviation between still pictures. CONSTITUTION:The system consists of plural still picture exhibition devices 17, 18, 19 each provided with a 1st output means outputting a ready signal repesenting that the changeover of a still picture is ready and a 1st input means receiving a switching signal enabling the changeover of the still picture and of a synchronization controller 16 provided with a 2nd input means 24 receiving the ready signal from them and a 2nd output means 25 outputting a switching signal to each of the still picture exhibition devices 17, 18, 19, and a still picture exhibition device whose changeover is ready uses the 1st output means to output the ready signal to the synchronization controller 16, and upon the receipt of the ready signal through the 2nd input means from all of the still picture exhibition devices being changeover objects, the synchronization controller 16 uses the 2nd output means 24 to output the switching signal to all the still picture exhibition devices being the changeover objects, and the still picture exhibition devices receiving the signal through the 1st input means start exhibition of the still picture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image display system for displaying a plurality of still images using a plurality of still image display devices.

[0002]

2. Description of the Related Art Currently, high-definition television is expected to be a future television. Hi-vision is considered to be used in various fields other than television broadcasting because of its clear image. Among them, still image display devices using high-definition still images have been introduced into museums and museums, and have been attracting attention.

Image display effect processing (wipe, scroll, dissolve, etc.) of this type of still image display apparatus is different from that of moving images. That is, in the case of a moving image, since the images in the state in which the image display effect processing has been performed are continuously recorded, the above effect can be achieved by sequentially reproducing the frames, whereas the still image (1 frame
In the case of only the image), it is necessary to read the still image stored in the storage medium into the memory once and then perform the image combining process and the like to perform the above process.

[0004]

When a still image exhibiting system for exhibiting a still image on a plurality of screens is configured by a plurality of still image exhibiting devices and the above processing is performed in the plurality of screens, each still image exhibiting device is used. Since the timing of performing the above process is slightly different depending on the situation, there is a problem that a gap occurs between the still images displayed by each still image exhibiting device when the above process is performed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a still image display system capable of performing the above-described processing in a state in which there is no deviation between the still images.

[0006]

According to the present invention, there is provided a first output means for outputting a ready signal indicating that a still image is ready for switching and a first input means for inputting a switching signal for permitting switching of a still image. A plurality of still image exhibiting devices, second input means for inputting the ready signal from each of the still image exhibiting devices, and second output means for outputting the switching signal to each of the still image exhibiting devices. The still image exhibiting device, which is made up of a synchronous control device and is ready to switch still images, outputs the ready signal to the synchronous control device by the first output means, and the synchronous control device displays the still image. When the ready signal is input from all of the still image exhibiting devices to be switched by the second input means, all the still image exhibiting devices to be switched of the still image are processed as described above. The second output means outputs the switching signal, the switching signal still picture display apparatus received by said first input means is a still image display system characterized by initiating the display of a still image.

[0007]

In the present invention, the still image exhibiting apparatus ready to switch the still image outputs the ready signal to the synchronous control device by the first output means, and the synchronous control device causes the still image switching target still image to be switched. When the ready signal is input from all of the image display devices by the second input means, the switching signal is output by the second output means to all of the still image display devices to which the still images are to be switched, and the switching signal is output by the first input means. The received still image display device starts to display the still image, and each still image displayed by each still image device can be synchronized.

[0008]

EXAMPLE An example of the present invention will be described below.

FIG. 1 is a block diagram of a still image display device.

In FIG. 1, 1 is a controller, 2 is a display device, 3 is a floppy disk drive, 4 is an input device, 5 is a CD-ROM drive, 6 is an audio output device, and 7 is an audio output device.
Is an image reproduction control unit, 8 is an image processing unit, 9 is a high-definition monitor, 10 is an optical disk drive, and 11 is a CD-R.
OM, 12 is an optical disk, 13 is a floppy disk,
Reference numeral 14 is a system control device including a controller 1, display device 2, floppy disk drive 3, and input device 4 (for example, a personal computer can be used), and 15 is an image reproduction control unit 7 and an image processing unit 8. The image reproducing device is composed of.

The controller 1 controls the entire apparatus.

The display device 2 is connected to the controller 1,
The control information (for example, an automatic exhibition program) for controlling the voice and the still image is displayed.

The floppy disk drive 3 is connected to the controller 1 and plays or records the floppy disk 13 on which the control information is recorded.

Control information is input to the controller 1 from the input device 4.

The optical disk 12 is, for example, a write-once or rewritable optical disk that stores still image data such as paintings and landscapes.

The optical disk drive 10 is an optical disk 1
2. Play or record 2.

The image reproduction controller 7 receives an instruction from the system controller 14 which operates based on the control information, and gives an instruction to the image processor 8.

The image processing section 8 is provided with three memories, and according to an instruction from the image reproduction control section 7, the optical disk drive 10 is operated.
To read the still image data into the three memories in sequence, and using the still image data stored in the two memories among them, for example, cut, wipe, scroll,
An analog high-definition signal is created by combining processing such as dissolve, and is output to the high-definition monitor-9. still,
The number of memories may be set appropriately as needed.

The high-definition monitor 9 includes an image processing unit 8
Display a still image based on the HDTV signal from.

The CD-ROM drive 5 drives a CD-ROM or CD 11 in which audio information is recorded.

The audio output device 6 amplifies and outputs the audio signal output from the CD-ROM drive 5.

The controller 1 and the image reproduction controller 7 are connected by a dedicated or standardized interface. The image processing unit 8 and the optical disk drive 10, and the controller 1 and the CD-ROM drive 5 are connected by a SCSI interface.

Further, an example of the automatic exhibition program registered in the floppy disk 13 is shown in FIG. Figure 3
The high-definition still image display device reads the still image data (image A) registered first in the optical disc 12 into the memory in which the still image currently displayed on the high-definition monitor 9 is stored. 2 seconds later
The second still image data (image B) is read into the memory to be displayed on the high-definition monitor 9, and after 10 seconds, the still image is switched by scrolling (8 seconds).
After 0 seconds, the third still image data (image C) is read into the memory to be displayed on the high-definition monitor 9, and after 28 seconds, a program that operates to switch the still image by wipe (4 seconds) is shown. ing.

FIG. 2 is a block diagram of a still image exhibition system constructed by using a plurality of the high-definition still image exhibition devices.

In FIG. 2, reference numeral 16 is a synchronous control device (for example, a personal computer can be used), 17, 18, 19 are ready signal output devices (first output means) and switching signals (not shown). 20. A still image display device which is the same as that described in FIG. 1 except that it has a switching signal input means (first input means) for inputting 20
Is a controller, 21 is a display device, 22 is a floppy disk (FD) drive, 23 is an input device, 24 is a ready signal input device (second input means), 25 is a switching signal output device (second output means), 26 is a floppy disk.

The synchronization control device 16 is provided between the system control device 14 and the synchronization control device 16 of each of the devices 17, 18, and 19.
Controller 20 is connected to the controller 1 of the system controller 14 of each device 17, 18 and 19 by an RS-232C interface for transmitting the start of the exhibition.

The synchronization control device 16 determines each device 1 based on the synchronization control information registered in the floppy disk 26.
Control switching of still images of 7, 18, and 19.

The synchronization of switching of still images is performed by each device 1.
7, 18, 19 sends a ready signal indicating that the still image is ready to be switched to the synchronous control device 16 side, and the synchronous control device 16 side sends each device 17, 18, This is performed by transmitting a switching signal permitting the start of switching of still images to the 19 side.

That is, the still image display device (for example, 17, 18) which is ready to switch the still images is synchronized with the ready control signal 16 by the first output means.
When the ready signal is input from all the still image exhibiting devices (for example, 17, 18) to which the still images are to be switched by the ready signal input device 24, the synchronization control device 16 outputs the still image exhibiting device (for example, 17). , 18) outputs a switching signal by the switching signal output device 25, and the still image display device (for example, 17, 18) having received the switching signal by the first input means starts the display of the still image.

The operation of the synchronization control device (16) based on the synchronization control information shown in FIG. 4 will be described below with reference to the flowchart of FIG.

At the start of the exhibition, the synchronous control device 16
A command indicating the start of exhibition is transmitted to the system controller 14 of each device 17, 18, 19 via the RS-232C interface, and each system controller 14 having received the command starts execution of each automatic exhibition program.

On the other hand, the synchronization control device 16 associates the still image switching time of each device 17, 18, 19 with any one of the devices 17, 18, 19 for switching the still image at that time. Each device 1 according to the synchronization control information
The switching of the still images of 7, 18, and 19 is synchronized. For example, 10 seconds after the start of the exhibition in FIG.
8 sends a ready signal at the stage when it is ready to switch the still image by each automatic exhibition program. The synchronization control device 16 checks the ready signal input to the ready signal input device 24 based on the synchronization control information,
When it is detected that the ready signals of 7 and 18 are both transmitted, the switching signal output device 25 outputs the switching signal to the devices 17 and 18. Upon receiving the switching signal, the devices 17 and 18 start switching the still image,
Stop sending the ready signal. In this way, by simultaneously switching the still images, each of the devices 17, 18, 1,
Switching of still images of 9 is performed in synchronization.

In the above-mentioned embodiment, the system using three still image display devices has been described.
This is applicable when using a plurality of still image display devices (two or more).

Further, a CD-ROM drive 5 for adding sound to the still image display system may be provided to control the same. Floppy disk 13,
A hard disk or a semiconductor memory may be used instead of the floppy disk drive 3. Also, the floppy disk 26 and the floppy disk drive 22
May be a hard disk.

[0035]

As is apparent from the above description, the present invention constitutes a still image display system for displaying a still image on a plurality of screens by a plurality of still image display devices, and an image display effect within the plurality of screens. When the processing is performed, the still image display apparatuses can be synchronized with each other, so that there is no deviation between the still images displayed by the still image display apparatuses when the above processing is performed.

[Brief description of drawings]

FIG. 1 is a block diagram of a still image display device.

FIG. 2 is a block diagram of a still image display system.

FIG. 3 is a schematic diagram showing an automatic exhibition program.

FIG. 4 is a schematic diagram showing synchronization control information.

FIG. 5 is a flowchart showing an operation of synchronization control information.

[Explanation of symbols]

 1 Controller 2 Display Device 3 Floppy Disk Drive 4 Input Device 5 CD-ROM Drive 6 Audio Output Device 7 Image Playback Control Section 8 Image Processing Section 9 Hi-Vision Monitor 10 Optical Disk Drive 11 CD-ROM 12 Optical Disk 13 Floppy Disk 14 System Control Device 15 Image playback device 16 Synchronous control device 17 Hi-vision still image exhibition device 18 Hi-vision still image exhibition device 19 Hi-vision still image exhibition device 20 Controller 21 Display device 22 Floppy disk drive 23 Input device 24 Ready signal input device 25 Switching signal output device 26 Floppy disk

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication H04N 9/79 G 7916-5C

Claims (1)

[Claims] 1. A plurality of still image displays equipped with first output means for outputting a ready signal indicating that preparation for switching still images has been completed and first input means for inputting a switching signal permitting switching of still images. And a synchronization control device having second input means for inputting the ready signal from each of the still image display apparatuses and second output means for outputting the switching signal to each of the still image display apparatuses. The still image display device that is ready to switch between still images
The first output means outputs the ready signal to the synchronization control device, and the synchronization control device inputs the ready signal from all the still image display devices to which still images are to be switched by the second input means. The still image exhibiting apparatus which outputs the switching signal by the second output means to all the still image exhibiting apparatuses to which the still image is switched and receives the switching signal by the first inputting means,
A still image display system characterized by starting the display of still images.