JP2896414B2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device used for meetings, meetings and the like.

[0002]

2. Description of the Related Art It is possible to store information using a personal computer, and to display the information for use in meetings. For example, various precautions and graphed data are output from a computer, displayed on a CRT display screen or a projector connected to the computer in a greatly enlarged manner, and the meeting is proceeded while watching the display. In addition, the contents to be displayed are not limited to those programmed in the computer, but may be image scanners, videos,
A video output device such as a television camera or a television tuner is connected to a computer, and the output is displayed on a CRT display screen or a projector via the computer.

[0003]

At present, in personal computers, one CRT is called a multi-window.
Several outputs can be viewed simultaneously on the display screen. This is mainly for displaying software, text, graphics, etc., stored on a floppy disk or the like on the output screen at that time, side by side or side by side, and outputs a text, graphics, etc. screen in addition to the currently displayed text screen. And so on. However, the multi-window method is performed by assembling movable software of a personal computer in such a manner, and is intended only for information that can be processed inside the personal computer. Therefore, when various OA devices such as an image scanner, a video, and a television receiver are connected to the computer as described above, only the screen of the connected personal computer is displayed on one screen.
Output from various personal computers and various O
It was not possible to superimpose and display images for each device A.

An object of the present invention is to solve the above-mentioned inconvenience and to display the output of various video OA devices such as a personal computer, a television and a video on one screen, and to display a so-called multimedia-compatible composite video. It is another object of the present invention to provide a display device capable of efficiently conducting a conference or the like.

[0005]

According to the present invention, there is provided a television device such as a personal computer, an engineering workstation, a television camera or a television tuner, a video device, a video output device such as an image scanner and the like. Video system AV controller and computer system A for input and output traffic for matching
V-controller, time-base collector to prevent fluctuations when the image is made to correspond to the screen with moving picture information. When the image corrected by this time-base collector is compared between the television system and the computer system, the television system uses NTSC to provide an image with constant accuracy. It has been determined that it is not as accurate as computer-based images, so it consists of a high-definition device that increases the density to complement the accuracy. The television camera is connected to this video-based AV controller via a video switch. In addition, a TV tuner and a video tape recorder of a video device are also connected to the video AV controller.
Furthermore, a personal computer, a slightly more advanced engineering workstation, etc. are connected to a computer AV controller via an interface, and the personal computer, engineering workstation, television camera, television tuner, video tape recorder, image scanner, etc. A signal matching circuit as a circuit for matching the video output signals of the respective video output devices and determining the size of each image at the time of the matching; a controller and a multiplexer operated by the controller; Computer,
Engineering workstations, TV cameras,
When a multiplexing device receives a video output signal of each video output device, such as a TV tuner, a video tape recorder, and an image scanner, which has been matched by a signal matching circuit, the matching by the signal matching circuit is performed. In this case, a video adder circuit that determines the order of superimposition of the respective images that have already been determined in accordance with a command from the controller, and a projector that receives an output from the video adder circuit and displays a video image. It is assumed that.

[0006]

The output to the CRT of the personal computer is 1
6KH _z is ~90KH _z (horizontal frequency), so that the screen frequency to the television receiver 16KH _z, image scanner the video output is a digital signal, the video output device is different output frequencies. According to the present invention, a computer can be used for the signal matching circuit and the video adding circuit. However, the video output signals of the video output devices are matched by the signal matching circuit, and the size of each image is adjusted at the time of the matching. In the video addition circuit, only the order of superposition of the images already sized by the signal matching circuit needs to be determined by a command from the controller, and the output from the video addition circuit is determined. Can simplify the final processing and operation for displaying a screen on a projector, and can be used promptly in accordance with the progress of conversation for use in meetings, meetings and the like.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the basic principle of the present invention,
FIG. 2 is a block diagram showing the details of the signal matching circuit 5. A personal computer 1, an image scanner 2, a television 3 such as a camera or a tuner, a video tape recorder (VTR) 4 as a video device, etc. Connecting.

As shown in FIG. 2, this signal matching circuit 5
The television camera 3a includes a video AV controller 5a, a computer AV controller 5b, a time base collector 5c, and a high definition device 5d. The TV camera 3a is connected to the video AV controller 5a via a video switch 6. Tuner 3b or video tape recorder 4
Are also connected to the video AV controller 5a.

On the other hand, a personal computer 1 or a slightly more advanced engineering workstation 1
are connected to the computer AV controller 5b via the interface 7. The signal matching circuit 5 is a circuit for matching the video output signals of the respective video output devices such as the personal computer 1, the engineering workstation 1a, the television camera 3a, the television tuner 3b, the video tape recorder 4, the image scanner 2, and the like. Controller 5a and computer system A
The V controller 5b performs input and output traffic for signal matching.

The time base collector 5c is for preventing the fluctuation when the moving image information is made to correspond to the screen, and the high definition device 5d is adapted to transfer the image corrected by the time base collector 5c to a television system and a computer system. In comparison, in a television system, an image is determined to a certain accuracy in NTSC, and is not as precise as an image in a computer system, so that the density is increased to complement the accuracy. The matching in the signal matching circuit 5 can be considered in two ways, that is, matching based on a video system (television system) and matching based on a computer system. Of these, when using a computer system as a reference, From the video AV controller 5a to the time base collector 5c and the high definition device 5
The output is input to the computer system AV controller 5b via d.

The signal matching circuit 5 is connected to a video adding circuit 8, and the video adding circuit 8 is connected to a projector 9. The video adding circuit 8 comprises a controller 8a and a multiplexing device 8b operated by the controller 8a. The personal computer 1, the engineering workstation 1a, the television camera 3a, the television tuner 3b, the video tape recorder 4, the image scanner 2, etc. When the multiplexing device 8b receives the video output signals of the respective video output devices, which have been matched by the signal matching circuit 5, from the signal matching circuit 5, the multiplexing device 8b In response to a command from the controller 8a.

In FIG. 1, reference numeral 10 denotes a mouse for operating the controller 8a. It should be noted that a computer may be used for the signal matching circuit 5 and the video adding circuit 8, but in the present invention, the mouse 10 is connected to the signal matching circuit 5
, And the size of each image is reduced at the time of matching by the signal matching circuit 5, and the video adding circuit 8 only determines the order of overlapping.

Next, the operation and usage will be described. As shown in the flow chart of FIG. 3, the power of the entire apparatus is turned on (step A), and the personal computer 1, the engineering workstation 1a, the television camera 3a, the television tuner 3b, the video tape recorder 4, the image scanner 2, and other video output devices, the device to be used and displayed is set.
B).

For example, assuming that the display device is used at a construction site, a television camera 3a is arranged at an appropriate place on the site, and a process chart and precautionary notes are input to the personal computer 1, and the engineering work is performed. It is assumed that a design drawing has been input to the station 1a. A projector 9 is installed in the meeting room of the site office, and a meeting on the progress of the construction is made while watching the projector 9.

The scene of the site is sent as an image to the signal matching circuit 5 by the television camera 3a, and the process chart and the precautions for work are sent from the personal computer 1, and the design drawing is sent from the engineering workstation 1a. Sent to Note that the moving image from the TV camera 3a enters the time base collector 5c from the video AV controller 5a as described above,
The fluctuation in the moving image information is prevented, and the density is increased by the high definition device 5d to match the image output of the computer.

The controller 8a of the video addition circuit 8 has a screen, on which a video of a site, a process chart, precautions for work, and a design drawing are superimposed and displayed. This means that the setting is made in the image memory while controlling the scanning, timing and the like as shown in step C. FIG. 4 shows this state. Assuming that 11 is this screen, this screen 11 corresponds to the display screen of the projector 9, screen A is the scene of the site, and screen B is the process chart and the work Cautions, screen C is a design drawing.
As shown by d, the mouse 10 for operating the controller 8a
Enter the size and position you want to display using.

The screen 11 and the screens A, B, and C are all of the same size and are input from the signal matching circuit 5 to the video adding circuit 8, but in the example of FIG. A is converted to A ₁₁ , screen B is converted to B ₁₁ , and screen C is converted to C ₁₁ , and is displayed on the screen 11.

As described above, the size and the position are calculated based on the numerical values of the respective video devices (steps and
E) Display on the projector 9 with the output from the video addition circuit 8. (Step f). The size and position can be changed freely according to the change of the screen as the meeting progresses. (Step To Chi Li)

In addition to the above embodiment, the TV tuner 3
b, other video output devices such as a video tape recorder 4 and an image scanner 2 can also be used.
Can be superimposed on one screen.

[0020]

As described above, the display device of the present invention has the following features.
The output of various types of video OA equipment such as personal computers, televisions, and videos can be represented on one screen, and so-called multi-media-compatible composite video can be obtained to efficiently conduct meetings and the like. is there.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic principle of a display device of the present invention.

FIG. 2 is a block diagram showing a first embodiment of the display device of the present invention.

FIG. 3 is a flowchart showing the operation of the display device of the present invention.

FIG. 4 is an explanatory diagram showing a screen operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Personal computer 1a ... Engineering workstation 2 ... Image scanner 3 ... Television 3a ... Television camera 3b ... TV tuner 4 ... Video tape recorder 5 ... Signal matching circuit 5a ... Video AV controller 5b ... Computer AV controller 5c ... Time Base collector 6 Video switch 7 Interface 8 Video addition circuit 8a Controller 8b Multiplexer 9 Projector 10 Mouse 11 Screen

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI // H04N 7/15 H04N 7/15

Claims (1)

(57) [Claims] An image-based AV controller for inputting and outputting input / output for signal matching with a television device such as a personal computer, an engineering workstation, a television camera or a television tuner, a video device, and an image scanner. And a computer-based AV controller, a time-base collector that prevents fluctuations when moving images to the screen, and a TV-based and computer-based TV system that compares the image corrected by this time-base collector with a TV-based computer Since the image is fixed to the accuracy and is not as precise as the image of the computer system, it consists of a high-definition device that increases the density to complement the accuracy, and the television camera transmits this image via the image switch. System AV controller, and A video tape recorder of a video recorder or a video device is also connected to the video AV controller. Further, a personal computer or a slightly more advanced engineering workstation is connected to the computer AV controller via an interface. Signal matching as a circuit that matches video output signals from video output devices such as computers, engineering workstations, TV cameras, TV tuners, video tape recorders, and image scanners, and determines the size of each image during this matching. A personal computer, an engineering workstation, a television camera, a television tuner, and a video tape. When a multiplexing device receives a video output signal of each video output device such as a coder and an image scanner, which is matched by a signal matching circuit, from the signal matching circuit, the signal is already large when matching is performed by the signal matching circuit. A display device comprising: a video addition circuit that determines the order of superimposition of images having predetermined sizes according to a command from a controller; and a projector that receives an output from the video addition circuit and displays a video.