JPS63250721A - Image editing and displaying device - Google Patents

Abstract

PURPOSE:To display current time, the elapsing time of a lecture, residual time, or the like by providing an image display device prepared for a lecturer independently of an image display device for audience with a clock function. CONSTITUTION:As to time display in a lecturer's image display device 2, a value indicating time is added by a CPU 11 at every time generating an interruption from a timer 13, a numeral corresponding to the value indicating the time is red out from a character pattern generating circuit 19 recording font dot images such as numerals or KANJI (Chinese characters) and written in an image memory 23 through a system bus 20 to display the value on a lecturer's monitor 25. The elapsing time is displayed by resetting the value indicating time to '0' at every lecture, adding the value at every generation of an interruption from the timer 13 and displaying the added time similarly to the time display. The residual time is displayed by subtracting the value indicating the time at every generation of an interruption in accordance with the elapse of time and then similarly displaying the subtracted value. Consequently, the advancing state of the lecture can be checked without observing a clock.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an image editing and display device equipped with a digital image processing function, and is particularly suitable for use in meetings, lectures, etc.
The present invention relates to an electronic presentation system equipped with functions for editing and displaying image data such as diagrams, photographs, and texts used in so-called presentations.

<Prior Art> Conventionally, as an image display device used for presentations, for example, an overhead projector (hereinafter referred to as OHP) that enlarges and projects an image on a film using an optical method is used.
) and slide projectors. The above OHP is
The light from the light source lamp,Fig.

The image on the transparent film is projected onto the screen by passing through a transparent film on which images such as graphs, text, photographs, etc. are written, and passing through an optical system consisting of lenses and mirrors to reach a screen. be. Further, the slide projector uses a slide film instead of a transparent film, and, like the OHP, the image on the slide film is projected onto a screen by the light of a light source lamp.

However, in the conventional image display devices such as OI-IP, the images written on each film are displayed as they are, so when trying to obtain a good-looking image,
Images must be accurately and neatly written on the film, and it takes a lot of time to create a manuscript. Furthermore, for the same reason, it is difficult to perform dynamic display that includes image movements and changes, and it is not possible to perform effective display in meetings, lectures, and the like. However, in the case of OHP, changes can be made to the image by moving the transparent film during projection, polymerizing another transparent film, or writing on the transparent film at any time, but these are manual operations. Because it is performed on the spot, it is difficult to obtain good images. Furthermore, since the number of screens is limited to one and the brightness is low, it is difficult to present a satisfactory image when presenting to a large number of people.

Further, as an image display device for giving a presentation in a conference room or the like, there is one that creates an image of presentation information on a computer and displays this image on a large projector or the like. However, in such an image display device, it is difficult to create a program and data to perform the intended display, and it takes time and effort to create a document image. Furthermore, when displayed on a large screen, since the number of pixels composing the image is small, the image becomes rough and the display quality is low. Furthermore, the computer for editing and creating images and the computer for displaying images must be the same computer or the same type of computer, and each lacks independence, resulting in inconveniences such as restrictions on configuration. had.

Accordingly, the present inventors have proposed an image editing and display device that combines an image editing device that creates display image data and an image display device that reads the image data and displays the image.

<Problems to be Solved by the Invention> However, in the conventional image editing and display device described above, only the image for the audience is edited and displayed, so it is difficult for the lecturer to know the time, elapsed time, remaining time, etc. If necessary, the speaker must check the clock installed in the lecture venue or the speaker's own clock, which poses the problem of not being able to fully concentrate on the lecture. Also, if you forget to watch it, there is a problem that the lecture time will be over.

Therefore, an object of the present invention is to provide an image display device especially for the lecturer with a clock function, in addition to the image display device for a large number of audience members, so that the current time - the elapsed time of the lecture i. ! An object of the present invention is to provide an image editing and display device capable of displaying 1 or iLsuS, etc.

Means for Solving the Problems> In order to achieve the above object, the present invention provides an image input means 1
an image editing device comprising an image data generation means and a non-volatile external storage means, and storing a code representing edited image data in the non-volatile external storage means; a reading means 0 an image data generation means 1 an image data storage means; In an image editing and display device having an image display means for audience and displaying an image for audience based on a code representing image data, a clock means outputting a digital signal representing time; , time data generation means for creating time image data representing time-related information based on a digital signal representing time inputted from the clock means;
A lecturer image display means for displaying a lecturer image based on the image data recorded in the image data storage means and the time tm image data generated from the time data generation means is provided. It is a feature.

<Function> In the image editing device, when an image editing instruction is input from the image input means, the image data is edited according to the editing instruction, and the code representing the edited image data is non-volatile. It is stored in external storage means.

On the other hand, in the image display device, a code representing the image data stored in the nonvolatile external storage means is read by a reading means, converted into image data by an image data generation means, and stored in an image data storage means.

Then, an audience image is displayed by the audience image display means based on the stored image data. Further, based on the digital signal representing the time outputted from the clock means, time image data representing time-related information is created by the time data generating means. Then, an image for the lecturer is displayed on the lecturer image display means based on the created image data and the image data recorded in the image data recording means. Therefore, the lecturer does not need to look at the clock to know the f? ! You can know the news.

<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

This image editing display device is an image editing device l shown in FIG.
and an image display device 2 shown in FIG.

The image editing device 1 includes a CPU (central processing unit) 3, a memory 41, an image memory 5. It is equipped with a color CRT (cathode ray tube) monitor 6, a mouse 7, a floppy disk device 8, and a keyboard 10. The above memory 4 is CP
It records programs and data for U3 operation settings, and also functions as a work area. The image memory 5 records the pixel value of each pixel of the displayed image, and
A video signal corresponding to each pixel value is output, and a color C
The RT monitor 6 uses the video signal output from the image memory 5 to display various information such as an image being edited, a command menu, a mouse cursor, and the internal state of the image editing device 1 to the operator. The mouse 7 inputs commands constituting a simplified drawing instruction code that instructs drawing of image constituent elements and a simplified instruction instruction code that instructs processing of the drawing instruction code, and the floppy disk device 8 records an instruction code string representing edited image data on a floppy disk, which is a non-volatile external memory. The keyboard IO is used for inputting time data and the like. In addition, the above CPU3
controls the entire device, edits the command input from the mouse 7 to create an instruction code string, writes this instruction code string to the floppy disk of the floppy disk device 8, and writes the instruction code The pixel value of the image corresponding to is written into the image memory 5. The memory 4, 1lii image memory 5. Mouse 7° floppy disk device 8 and keyboard IO are connected to system bus 9
It is connected to CPU3 via. The mouse 7 serving as the input means may be a tablet, a keyboard, or the like.

The image memory 5 has a lookup table and two frames A and B, and the images of each frame are displayed in a superimposed manner on one display screen of the color CRT monitor 6. It has become. Further, each frame of the image memory 5 has a configuration of, for example, 512×512 pixels and 5 bits/pixel. The pixel data read from the frame is exchanged into 5-bit data for each of RGB through the look-up table, and then converted into a video signal.

On the other hand, the image display device 2 includes a CPU II, a memory 12, a timer 13. Operation switch 14. Floppy disk device15. Image memory 16, 23° large projector 17
．． Graphic drawing circuit 1g, character pattern generation circuit 19. Keyboard 22. It consists of a mixer 24 and a monitor 25 for the speaker. The memory 12 records programs and data for setting the operation of the CPU II, and also functions as a work area. The timer 13 is set and reset by cpuz, and when the set time elapses, an interrupt is requested to the CPU II. The above operation switch 14 and timer 13
causes a predetermined event to occur due to an external factor,
The fact that the CPU 11 accepts both of these interrupts can be regarded as detection of an event caused by an external factor. A plurality of operation switches 14 are provided, and they are distinguished by numbering each one. The floppy disk device 15, which is a reading means, reads the data of the instruction code string created by the image editing device 1 and recorded on the floppy disk from the floppy disk. The image memory I6 records the pixel values of the displayed image and generates a video signal corresponding to the pixel values.

The large projector I7, which is an image display device, uses a projection method with 1024 scanning lines and a screen size of 100 inches, and displays images using video signals from the image memory 16. The large projector I7 is not limited to one unit, but may be provided with a plurality of units provided with a video signal distributor, or may be replaced with a CRT monitor or the like.

The figure drawing circuit I8 is controlled by the CPU II and writes figures such as straight lines, rectangles, ellipses, and filled-in shapes into the image memory 16 at high speed. To write character patterns etc. at high speed.

The second image memory 23 records the pixel values of the time display, the elapsed time of the lecture, the remaining time of the lecture, the display image - the guide figure of the display time of administration, etc., and also generates a video signal corresponding to this pixel value. . The image memory 16 and the image memory 23 have 1024 x 1024 pixels, 16 pixels per pixel.
It is capable of recording bit images. However, the second image memory 23 may have a smaller number of bits per pixel than the first image memory 16, and may also have a smaller number of expressible gradations and colors. Further, the image memory 16 and the image memory 23 are provided with look-up tables, and the pixel data read out for display from the image memory 16 and the image memory 23 is determined by the look-up table using 8 bits for each RGI3. It is then converted into luminance data, which is then converted into a video signal. The mixer 24 combines the video signals generated from the image memory 16 and the image memory 23 and outputs the synthesized signal to a monitor 25, which will be described later. The CPU 1 controls the graphic drawing circuit 18 and the character pattern generation circuit 19 according to the example code read from the floppy disk device 15, or directly controls the image memory 16 and the image memory 2.
By writing pixel data to 3, a graphic corresponding to the instruction code string is created in the image memory 16 and the image memory 23.

The lecturer's monitor 25 is installed on the lecturer's operation/table 26 as shown in FIG. , the image of the guide figure created in the second image memory 23 is superimposed on the same image as the display image of the projector 17 and projected as shown in FIG. The superimposition of these two types of images is performed by projecting the display image of the large-sized projector 17 onto the transparent background of the image of the guide figure.

The above CPU11. Memory 12. The graphic drawing circuit 18, the character pattern generating circuit 19, and the keyboard 22 constitute image data generating means. Memory 12. Timer 13. Operation switch 14° Floppy disk device 15
．． Image memory 16°, figure drawing circuit 181, character pattern generation circuit +9° image memory 23, and keyboard 22,
It is connected to the CPUI 1 via a system bus 20.

Also, figure drawing circuit! 8 and character pattern generation circuit 1
9 is connected to the image memory 16 and the image memory 23 via the image data bus 2K. The operation console 26 has a third
Microphone 27 for the speaker as shown in the figure. The floppy disk device 1 is provided with a 5° operation switch 14 and a keyboard 22.

The above-described example of printing in the image display device 2 is already widely known, and it is also possible to configure it only with a CPU without providing dedicated hardware as described above.

The display of time-related information on the image display device 2 having the above configuration is performed in the following manner.

To display the time, the CPU II adds a value indicating the time every time an interrupt occurs by the timer 13, and displays the number corresponding to the value indicating the time in numbers (0 to 9) or Kanji (hours 9 minutes 1 second). ) is read from the recorded character pattern generation circuit 19 and written to the image memory 23 via the system bus 20 to be displayed on the monitor 25 for the lecturer. In addition, the elapsed time can be displayed in the same way as the time display by resetting the time value to O at the start of the lecture, and then adding that value each time an interrupt occurs by the timer 13. Is displayed. Conversely, the remaining time is displayed in a similar manner by decreasing the value indicating the time as time passes each time an interrupt occurs. In addition to the above-mentioned method of using numbers and kanji to display the elapsed time and remaining time of a lecture, there is a method of expressing it using a pie chart or a bar graph as shown in FIG. 6 and FIG. This is done by writing a pixel value that fills a bar graph or pie chart by a certain amount from the current position into the image memory 23 via the system bus 20 every time an interrupt occurs by the timer 13. changes can be displayed on the monitor 25 for the lecturer. For example, timer 13
When an interrupt occurs from 00' and A in Fig. 5a,
The area between A' and OA in FIG. 5 is filled in with the same color as the one already painted between OA and OB to indicate the elapsed time.

In addition, the time data of the time at which the lecture speed is to be accelerated is set by the presenter by inputting it in advance using the keyboard 10 shown in Figure 1 before the lecture, and the elapsed time and remaining time are automatically counted as soon as the lecture starts. It is done with purpose.

The function of the timer 13 of the image display device 2 enables the following four operations to be performed by utilizing the fact that it is possible to count the remaining time of the lecture.

(A) When editing in advance, manually enter the desired time t from the keyboard 10 shown in FIG.

This value t is recorded on the 1:S floppy like other instructions. Then, during the lecture, the time t is read by the floppy disk device 15 of the image display device 2 and stored in the memory 12, and the CPU 1 sets it as the remaining time of the lecture calculated based on the output value from the timer 13. The values t are compared, and if the remaining time of the lecture is less than the set value, the second
The entire screen of the lecturer's monitor 25 shown in the figure is flashed at a constant time. This means that the CPU 1 transfers the contents of the address storing the background color of the speaker's monitor 25 in the lookup table of the image memory 23 to the system bus 20.
This is achieved by rewriting at certain time intervals via . Furthermore, the time from the start to the end of flushing can be set to an arbitrary value by the speaker inputting it from the keyboard 10 of the image editing device during editing.

(B) During the lecture, the lecturer displays the image data created during editing in order by pressing the operation switch 14 or the keyboard 22 shown in Figure 2, and the lecturer displays the image data in order according to the speed of the lecture. You can proceed as per your convenience. As shown above, if the remaining time of the lecture falls below the set value at the time of editing, the remaining time will be changed according to the order created at the time of editing, even if there is no input from the operation switch 14 or keyboard 22 by the lecturer. However, the image data to be displayed next is read out from the floppy disk device 15, a figure is drawn in the image memory 16 by the CPU II, and the image data is drawn on the large projector 17. It is displayed on the monitor 25 for the lecturer. Therefore, since the remaining time of the lecture is less than or equal to t, the image is displayed at regular intervals without crossing the speaker's input, so the speaker can change the image displayed on the lecturer's monitor 25. Instead, you can speed up your presentation by providing a concise explanation for each image.

(C) When displaying images in lectures, in addition to displaying images instantaneously when drawing figures, the drawing speed is slowed down and a large projector 17 is used to emphasize the process of drawing figures to the audience. may be displayed. This means that the CPU II transfers data from the floppy disk device 15 to the image memory 16 via the system bus 2o - drawing unit (
In other words, after sending the data for drawing one line (for filling, one pixel for straight line), wait the waiting time tw set in advance during editing, and then execute the next drawing unit. It is executed by repeating. For example, when filling in a circle as shown in Figure 6, ■ draw OA, ■ wait for waiting time tw,
■ Repeat the operation of drawing OA'. In this way, the drawing speed of one figure can be determined at the time of editing to make it convenient for the lecturer to give a presentation. The drawing speed setting value is also recorded on the floppy disk at the time of editing, like other command data, and is read by the image display device 2 and executed. Here, if the remaining time of the lecture becomes less than the setting value at the time of editing as shown above, the large-sized projector 17. When drawing on the lecturer's monitor 25, the figure is read from the floppy disk device 1l15 without executing the above-mentioned waiting L'Jtv, and the figure is simply repeatedly drawn on the image memory 16 by the CPU II. Change. Therefore, drawing of figures becomes faster and lecture time can be shortened.

(D) The lecturer proceeds with the lecture by displaying the image data one by one on the large projector 17° and the lecturer's monitor 25 in accordance with the order created during editing. Here, when the remaining time of the lecture becomes less than the setting value shown above, all image data will be transferred one by one to the large projector 17. Instead of displaying it on the monitor 25 for the lecturer, it is possible to display it selectively. In other words, the presenter can prioritize each piece of image data in advance when editing, and during the lecture, if the remaining time exceeds the above setting value, all image data will be displayed regardless of the priority. However, when the remaining time becomes less than t, the CPU 11
Check the priority of the image data read from the floppy disk, transfer only those with high priority to the image memory 16, and send them to the large projector 17. Monitor 25 for lecturer
Serve displayed. In this way, the lecture time can be shortened.

The above four items (A) to (D) can be realized by providing the image display device 2 shown in FIG. 2 with the function of a timer 13. However, 4 of the above (A) to (D)
It is possible to use no items, only some items, or all items depending on the speaker's intention, and the decision on which items to use is based on (A) is before the lecture, (B) ~ (D) is: li! During the performance, press the operation switch 14 or keyboard 22 in Figure 2.
This is done by pressing .

<Effects of the Invention> As is clear from the above, the image editing and display device of the present invention includes a clock means, 9 o'clock data generation means, and a lecturer image display means, and displays the time outputted from the clock means. Time image data is generated from the digital signal, and based on the time image data and the image data of the audience image, an image for the lecturer including the time image is displayed on a lecturer image display means. Therefore, the lecturer does not need to check the time by looking at the clock, and can immerse himself in the lecture, while also being able to reliably know the progress of the lecture.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an image editing device in one embodiment of the image editing and display device of the present invention, FIG. 2 is a block diagram of the image display device in the above embodiment, and FIG. Figure 4 is a diagram showing an example of the display on the monitor for the lecturer, Figure 5 is a diagram showing an example of the display of the elapsed time and remaining time of the lecture, and Figure 6 is a diagram showing the drawing speed. It is an explanatory diagram when slowing down. ! ...Image editing device, 2...Image display device,
3.1! ...CPU, 4.12...Memory, 5.16.23...Image memory, 7...Mouse,
8.15...Floppy disk device, 10.22.
...Keyboard! 4...operation switch, 17...
-Large projector, 24...mixer, 25...monitor for lecturer, 26...operation console.

Claims (1)

[Claims] (1) It has an image input means, an image data generation means, and a non-volatile external storage means, which edits image data according to input image editing instructions, and stores a code representing the edited image data in the non-volatile external storage means. an image editing device for storing image data in the non-volatile external storage device, a reading device, a reading device, an image data generating device, an image data storage device, and an image display device for audience; An image editing and display device comprising: an image display device which reads an image, converts it into image data and stores it, and displays an image for the audience based on the stored image data; a clock means which outputs a digital signal representing time; , time data generating means for creating time image data representing time-related information based on a digital signal representing time inputted from the clock means; image data recorded in the image data storage means; and time data generating means; 1. An image editing and display device comprising: a lecturer image display means for displaying a lecturer image based on the image data generated from the generation means.