JPH0411285A - Image communication terminal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (a) Industrial Application Field This invention displays manuscript information and handwritten information on a dot-type display device of its own device, such as a drawing communication terminal, and also exchanges it with the other party. Related to image communication terminals.

(b) Conventional technology The drawing communication terminals developed in recent years have a matrix of dots (
Equipped with a segment) type liquid crystal display device, it displays document information read with an image scanner, etc., and drawing (handwritten) information inputted with a digitizer, etc., on the liquid crystal display device, and also displays input information with the other party via a telephone line. It is used to exchange drawing information. For example, the image size that can be handled by this type of conventional drawing communication terminal is A4 size (1728x2
232 dots), and the number of dots on the display device was smaller than the number of dots that could be handled by the screen size (memory). Therefore, when displaying the entire screen on a small screen display device, the data was compressed and displayed. .

(c) Problems to be solved by the invention Since the screen size that can be handled by the above-mentioned conventional drawing communication terminal is fixed, it is not possible to handle a large screen from the viewpoint of image quality, and the display device is small and the display is reduced. When this was done, there was a problem in that the resolution of the image was reduced.

The present invention was made in view of the above-mentioned problems, and provides an image communication terminal that can handle a large-sized screen and does not reduce image resolution even if it is equipped with a small display device. It is intended to.

(d) Means and operation for solving the problems The image communication terminal of the present invention includes a dot-type display device, a memory for storing display information, and a communication means, and displays display information on the dot-type display device. At the same time, in a device that transmits and receives this display information to and from the other party via a communication line by a communication means, the number of dots is N times (N
〉1) An image memory having the memory cells of 1) and storing manuscript information and handwritten information; means for inputting desired position coordinates in the image image memory as reference coordinates; display area designating means for setting data in the image memory as a display area corresponding to the dot arrangement mode of the dot type display device, and displaying the display area and specified information on the dot type display device. There is.

In this image communication terminal, for example, the image memory
1 stores relatively large document information such as Al size or handwritten information. Then, among the large image information stored in this image image memory, a display area is specified by an input means for specifying a display area using a predetermined coordinate as a reference coordinate, and the dot information in which display area is directly converted into a two-dimensional image. It is displayed according to the display means. Therefore, even if the image information is large and the number of dots on the display device is small, the display area information suitable for each display device is displayed arbitrarily, without deteriorating the display image quality.
You can freely select and display them.

(E) Examples The present invention will be explained in more detail with reference to Examples below.

FIG. 1 is a block diagram of a drawing communication terminal showing an embodiment of the present invention. The drawing communication terminal of this embodiment includes a drawing input section 1 for inputting handwritten information, a facsimile section 2 for reading and transmitting manuscript information, a display device 3 for displaying input handwritten information or manuscript information, and a display device 3 for displaying input handwritten information or manuscript information. A VRAM 4 that stores display information corresponding to the number of display dots on the display device 3, and a relatively large size, such as Al size (or A3 size) that is read from the facsimile unit 2.
an image memory 5 for storing an image of the image, a position detection unit 6 for detecting a display position designated by an input pen of the drawing input section 1, and a CP for controlling these.
U7, modem 8 and telephone 9 for communicating with the other party
It is composed of.

The display device 3 is, for example, a liquid crystal display panel, and the number of display dots of the display device 3 is smaller than the number of data storage cells of the image memory 5.

When communicating with the other party using the drawing communication terminal configured as described above, the telephone 9 attached to the modem 8 first calls the other party and enters a conversation state with the other party. Then, the facsimile section 2 reads the image original to be communicated with the other party and stores it in the image image memory 5. This image memory 5 is designed to store information (for example, Al size) larger than the number of display dots on the display device 3, and such a large image can also be transmitted to the other party via the modem 8. The image is also stored in the image memory 5 of the other party. As a result, the images that serve as the basis for communication with the other party are both stored and retained. However, since the display device 3 has a smaller number of tods than the image memory 5, it does not display all the information.

For example, as shown in FIG. 2, the coordinates of the image data in the image memory 5 are (0,
O), if the coordinates of point B at the lower right end are (XF, yv), the display area to be displayed on the display device 3 is selected within this range. In order to determine the display area with the input pen of the drawing input section 1, the coordinates of point 0 and point D shown in FIG. 2, for example, are input. That is, (X+, y+) and (xz, yz) are input.

As a result, among the image data p stored in the image image memory 5, the image data of the display area q shown in FIG. 2 is sent to the VRAM 4 and displayed on the display device 3.

As a result, the data in the area indicated by the display area q in the image of both the other party and the own device is displayed as a partial image in a 1:1 correspondence.

While communicating with the other party through the telephone 9,
If you want to change the display area, you can freely select the coordinates from the image data between A and B by changing the designated point of the display area from the drawing input unit 1 and display it on the small display device 3. be able to.

For example, in the example of image information P shown in FIG. 3, this display example shows the configuration of circuit blocks a, b, ... First, for example, 9. If you want to display the display area of 92, have various meetings, and then check the display of blocks b and c, for example, you can move the display area to 92 and display it partially, so that each small display device 3 Even if the number of dots is , it is possible to freely partially display data within the range of the image p and obtain a highly accurate display image.

Note that this explanation assumes that both the own device and the other party use the same number of dots on the display device 3, but each drawing communication terminal has a display device with a large number of display dots and a display device with a small number of display dots. Even between machines, each display area can be combined and displayed as desired.

For example, the other party's display area is such that it can only display 92 in Figure 3, while the own device's display area is (11% Qt
Even if the display area is the same as that of the other party, the display can be performed by confirming with the other party while having an appropriate display area. Therefore, in the drawing communication terminal of this embodiment, as long as the image memory 5 has a large number of dots, there is no problem even if the number of dots on the display device 3 is different, and the display can be performed by controlling the same display dots. It can be performed.

Furthermore, in the above embodiment, the display area is specified by inputting the 0 point and the D point with the input pen 1 of the drawing input unit 1. However, when specifying the size of the display area, If point 0, that is, the upper left point, is specified, point D is automatically determined, and the display area can be arbitrarily changed and scrolled with a single operation of the input pen.

Furthermore, although the above embodiments have been shown as having a facsimile section, this may also be configured to import facsimile information from outside.

(f) Effects of the Invention According to the present invention, a large-sized image memory is provided, and a specific area of this image memory is specified and displayed on a display device corresponding to the same number of dots. Regardless of the resolution of the other party's image, the size of the display device, or the size of the display device, it is possible to display the original image with a certain degree of precision.
Highly accurate image communication can be performed between each other.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a drawing communication terminal according to an embodiment of the present invention, and FIG. 2 is for explaining the size of the image of the drawing communication terminal and the display area of the display device. 3 and 3 are explanatory diagrams showing specific display examples for specifying the same image and display area. 1: Drawing manual section, 2: Facsimile section, 3: Display device, 5: Image memory, 6: Position detection unit, 7: CPU. Patent applicant: Shimadzu Corporation Agent
Patent Attorney Shigeru Nakamura Diagram Diagram ES (Xr, Y→ Diagram

Claims (1)

[Claims] (1) Equipped with a dot-type display device, a memory for storing display information, and a communication means, the display information is displayed on the dot-type display device, and this display information is exchanged with the other party via a communication line by the communication means. In the image communication terminal, the number of dots is N times larger than the number of dots of the dot type display device (N>
1) an image memory having a memory cell and storing manuscript information and handwritten information; means for inputting desired position coordinates in the image memory as reference coordinates; and a display area specifying means for setting the data in the image memory corresponding to the dot arrangement mode of the display device as a display area, and displaying the display area and the specified information on the dot type display device. An image communication terminal featuring: