JPH06318056A - Notice projection system - Google Patents

Abstract

PURPOSE:To prepare information to be written up on a bulletin board, etc., by a personal computer, etc., and to project it on a screen by a projector device. CONSTITUTION:An image is inputted from the image input part 1 of an image data forming device (1), and a character, a graphic etc., are inputted from an input part 2. An inputted signal is processed into the image data by a data processing part 4 based on a projector from a storage part 3, and is displayed on a display part 5 to be stored in an image data base 6. The image is read out through a CPU 8, and is generated in an analog video signal to be outputted from an output part 7. The video signal is inputted from the input part 9 of a scanning line conversion device (2) to a scanning line conversion part 10, and the conversion processes of the number of scanning line and the scanning time, etc., of the scanning line are performed to be sent to a projector display part 12. By the projector display part 12, the image is projected on the screen 13 based on the inputted signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulletin board projection system, and more particularly to a system for projecting information created by a personal computer (hereinafter abbreviated as personal computer) or the like onto a screen.

[0002]

[Prior Art] To provide information to office staff,
There are some that display information by installing a bulletin board. For example,
A large bulletin board is installed in the office of the fire department, and it displays a map of each place in the jurisdiction, information on the availability of medical treatment by hospital subject, the situation of each fire engine vehicle, etc. It is set up to provide the necessary information. By the way, if you need to correct the information on these bulletin boards,
There is a problem that it is necessary to rewrite the correction portion, and it takes time and cost for each correction.

[0003]

SUMMARY OF THE INVENTION In view of such a point, the present invention creates posting information by a personal computer or the like and projects the created image on a screen by a projector device, thereby correcting the posting information. The purpose of the present invention is to provide data that can be corrected by inputting data from a personal computer or the like, which requires little cost for correction, and can be corrected by a simple operation.

[0004]

In order to solve the above-mentioned problems, the present invention provides an image data generation device for generating image data based on an input image or characters, and an image data generated by the image data generation device. According to the present invention, there is provided a bulletin board projection system including a projector device for projecting on a screen based on the image data, or converting image data from an image data generating device into a required television signal and projecting the signal on the screen.

[0005]

With the above-mentioned configuration, in the bulletin board projection system according to the present invention, it is incorporated in a personal computer or the like.
Alternatively, characters, images, etc. created by a personal computer or the like are converted into a required television signal, input to a projector device, and projected on a screen. Thereby, the posted information can be corrected immediately by operating the keyboard of the personal computer.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a bulletin board projection system according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a bulletin board projection system according to the present invention. In the figure, a is an image data generating device and corresponds to a personal computer. B is a scanning line conversion device, which performs scanning line conversion processing of the signal from the image data generation device B. The image data generating device (1) 1 is an image input unit that captures an image by, for example, a television camera or an image scanner. Reference numeral 2 is an input unit for inputting characters or figures by operating a keyboard or the like. A storage unit 3 stores processing programs such as image data. A data processing unit 4 performs data processing of an image from the image input unit 1 and characters or graphics from the input unit 2 based on a program or the like from the storage unit 3. A display unit 5 displays the data processed by the data processing unit 4 on the screen. An image database 6 records the image data processed by the data processing unit 4. An output unit 7 converts the image data generated by the image data generation device B into an analog video signal and outputs it. 8 is a CPU
Then, each part of the image data generating device B is controlled.

The scanning line converter B has an input unit 9 for inputting a video signal from the image data generator B. A scanning line conversion unit 10 converts the number of scanning lines of the video signal from the input unit 9 and the scanning time. Reference numeral 11 denotes a CPU, which controls each part of the scanning line converter b. Reference numeral 12 denotes a projector display unit, which screens an image based on a signal from the scanning line conversion device B.
Project to 13.

FIG. 2 is a partial block diagram of another embodiment of the bulletin board projection system according to the present invention. In the figure, 21 is A
The / D converter converts the analog video signal from the input unit 9 into a digital signal. 22 is a scanning line conversion unit, which is A
The number of scanning lines and the scanning time of the video signal from the / D converter 21 are converted. 23 is a D / A converter, which is a scanning line converter
The signal from 22 is converted into an analog signal and sent to the projector display unit 12.

Next, the operation of the bulletin board projection system according to the present invention will be described. The bulletin board information is input from the image input unit 1 or the input unit 2 of the image data generating device B (personal computer). That is, for example, a map or the like is input from the image input unit 1 using an image captured by a television camera or an image read by an image scanner, and characters or drawing names are input from the input unit 2 by operating the keyboard or the like. To do. These signals are input to the data processing unit 4 via the CPU 8 and processed into required image data based on the projector read from the storage unit 3 via the CPU 8. This image data is input to the display unit 5 via the CPU 8, displayed on the screen, and input and recorded in the image database 6 via the CPU 8 by a required processing operation. Then, it is read from the image database 6 via the CPU 8 based on the screen display designation operation, and is generated and output as analog signals of the three primary colors of red, green and blue via the output unit 7. When the image recorded in the image database 6 is to be corrected, the image is called by a required operation, and after correction, the image is recorded in the image database as needed.

The video signal from the image data generator a is input to the scanning line converter b. This scanning line converter b
Signal format of image data generator a and projector display section
When the signal format processed by 12 is different, the video signal from the image data generating device (i) is converted into a signal format compatible with the projector display section (12). That is, for example, a process such as performing an appropriate calculation between adjacent scanning lines of an input video signal for compression or performing a process such as increasing the number of scanning lines by interpolation between scanning lines, and scanning each scanning line are performed. Scan line conversion is performed by appropriately setting the time. The CPU 11 controls the conversion processing of these scanning line conversion units 10.

When performing color display, the red, green, and blue primary color signals processed by the scanning line conversion unit 10 are input to the projector display unit 12, and light of the three primary colors of red, green, and blue is input. To be projected onto the screen 13.

The image database 6 is set to have an appropriate storage capacity according to the use of this system so as to record a plurality of image data, read out appropriate image data by a required operation, perform the above-mentioned signal processing, etc. To project it on the screen 13, or combine a plurality of images read from a plurality of image memories into one image and
You may make it project on.

In the above description, the scanning line conversion section 10 converts an analog input signal, but as shown in FIG. 2, the scanning line conversion section 10 converts it into a digital signal through the A / D conversion section 21 and scans it. The line conversion unit 22 performs scanning line conversion by calculation, and D
The A / A converter 23 may convert the analog signal and output the analog signal. Further, when the format of the signal generated by the image data generating apparatus B matches the format of the signal processed by the projector display unit 12, the scanning line converting apparatus B is unnecessary. The image projected on the screen 13 is read from the image database 6 and displayed, but the image processed by the data processing unit 4 may be directly displayed.

[0014]

As described above, according to the bulletin board projection system according to the present invention, since the bulletin board information is input by a personal computer or the like, it is possible to quickly respond to changes in the bulletin board contents. Since the bulletin information is projected on the screen by the projector device, the screen size can be appropriately expanded or reduced as necessary.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts of an embodiment of a bulletin board projection system according to the present invention.

FIG. 2 is a partial block diagram of another embodiment of the bulletin board projection system according to the present invention.

[Explanation of symbols]

 B. Image data generator b Scan line converter 1 Image input part 2 Input part 3 Storage part 4 Data processing part 5 Display part 6 Image database 7 Output part 8 CPU 9 Input part 10 Scan line conversion part 11 CPU 12 Projector display part 13 Screen 21 A / D converter 22 Scan line converter 23 D / A converter

Claims (2)

[Claims] 1. A bulletin board projection system comprising an image data generating device for generating image data based on an input image or characters, and a projector device for projecting on a screen based on image data from the image data generating device. . 2. An image data generation device for generating image data based on an input image or characters, and a television signal conversion device for converting the image data from the image data generation device into a required television signal. A bulletin board projection system comprising a projector device for projecting on a screen based on a signal from a television signal conversion device.