JPH0384595A - Image display system - Google Patents

Abstract

PURPOSE:To easily alter only part of an image, displayed on each terminal, regarding characters by holding character image data consisting of non-character image data and data sets of different words and phrases internally and reading the non-character image data and data sets of instructed words and phrases out. CONSTITUTION:An image data sending device 7 is stored previously with plural kinds of image data 9 consisting of character image data consisting of plural data sets represented with words and phrases having the same meaning and differing in contents among characters of an image to be displayed and non- character image data other than the character image data. Then, image data which is sent out of the image data sending device 7 through a communication line 10 and received by a distributor 11 are held in each image data holding part and non-character image data and data sets instructed individually from outside in the held image data are displayed as an image at each image output part 12. Thus, words and phrases instructed to each image display terminal can be easily altered and displayed.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an image display system that transmits pre-stored image data and simultaneously displays the image data as an image on a plurality of image display terminals when making a presentation at an academic conference, an exposition, or the like.

[Conventional technology]

Figure 7 shows, for example, ``Color Graphic Terminal Device'' by Noguchi, Yamanaka, and Matsumoto, National Technical Report (Na
tional Technical Report)
Vol, 33+No, 2. April, 1987. pp,
117-123 is a block diagram showing the configuration of a conventional image display terminal shown in FIG.
2 is a communication control unit that performs high-speed communication with a host computer (not shown) via the 2C interface (hereinafter referred to as 17F) lb, control via the keyboard I/Flc, etc.; 2 is an image sent from the host computer; A segment management unit 3 manages data in units of segments and reads it out as image data consisting of drawing commands such as straight lines, rectangles, circles, and character strings; 3 enlarges/reduces the image data read out from the segment management unit 2; A coordinate transformation section 4 performs rotation, translation, etc., a drawing processing section 4 develops the image data coordinate-transformed by the coordinate transformation section 3 into a figure, etc., and draws it at high speed in the frame buffer memory 5; 5 the drawing processing section 4; A frame buffer memory stores the image data as two-dimensional rain and ice data by the processing unit 4, and 6 serves as a display means for scanning the image data stored in the frame buffer memory 5 at a constant frequency and repeatedly reading and displaying the image data. The image display section 20 is a CRT, and includes the coordinate conversion section 3, the drawing processing section 4, the frame buffer memory 5, and the CRT 6. Next, the operation will be explained using the flowchart shown in FIG. First, the communication control unit 1a receives image data transmitted from the host computer via the R3-232CI/F1b (step 5TI). The received image data is temporarily stored in the segment management section 2 and read out as image data consisting of a drawing command (step 5T2). The successively outputted image data is coordinate-transformed by the coordinate conversion section 3, and then expanded into figures etc. by the drawing processing section 4 and drawn on the frame buffer memory 5 (step 5T3), and CR
It is read out repeatedly according to the scan frequency of T6, and the C
It is displayed on RTe (step 5T4).

[Invention or problem to be solved]

Conventional image display systems are configured as described above, so when presenting at international conferences, audiovisual classrooms, etc., the same image can only be displayed simultaneously on multiple image display terminals, and it is difficult to display the same image at the same time as in other countries' languages. There were issues such as the inability to display different characters (hereinafter referred to as words) with the same meaning. This invention was made in order to solve the above-mentioned problem, and it is possible to easily change part or all of the characters of an image to be displayed into designated words and phrases for each image display terminal. The purpose is to obtain an image display system.

[Means to solve the problem]

The image display system according to the present invention provides an image data sending device with character image data consisting of a plurality of data sets in which part or all of data related to characters in an image to be displayed is expressed using different words and phrases having the same meaning, and A plurality of types of image data consisting of non-character image data, which is data other than this character image data, is stored in advance, and is transmitted from the image data transmitting device via a communication line, and is further received by the distributor. image data stored in each image data holding section, and non-text image data among the held image data and data sets individually instructed from the outside are each displayed as an image by each image output section. It is equipped with an image display terminal.

[For use]

The image display terminal according to the present invention includes non-character image data sent from the image data sending device in the image data holding section;
It internally stores image data consisting of character image data consisting of a data set of multiple different words and phrases, and stores non-character image data and a data set of words externally instructed to each terminal (as character image data). ), it is possible to easily change only the text-related portion of the image displayed on each terminal.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing the configuration of the image display system of the present invention, and FIG. 2 is a block diagram showing the configuration of the image display terminal in this image display system. Identical parts are denoted by the same reference numerals and description thereof will be omitted. In FIG. 1, reference numeral 7 indicates image data 9 consisting of drawing commands such as straight lines, rectangles, circles, character strings, etc. to each image display terminal 13.
8 is a magnetic disk serving as a storage device in which a plurality of types of image data 9 are previously stored in the image data sending device 7; 9 is a storage device for storing image data stored in the magnetic disk 8; It is assumed that one image data is sent to each image display terminal 13. 10 is a communication line using R3-232CI/F or the like to transfer the image data 9; 11 is a communication line for distributing the image data 9 sent from the image data sending device 7 via the communication line 10 to each image display terminal 13; distributor, 12 is an image display terminal 13
13 is an image display terminal. In FIG. 2, 14 is a communication unit that receives the image data 9 sent from the image data sending device 7; 15 is a control unit that performs reception control and display instructions in the communication unit 14;
Reference numeral 16 denotes an image data holding section that internally holds the image data 9 received by the communication section 14 and the control section 15. The image data 9 has a file structure as shown in Figure 3. In the figure, 17 is a part of the header of the file, 17a is the number of data sets, and 17b is the offset value at the beginning of each data set. , 17c is the type of word of each data set, 18 is non-text image data, 19 is text image data, and the first data set 19a. It consists of a second data set 19b. FIG. 4 is a diagram showing an example of non-character image data 18 and character image data 19 among the image data consisting of the drawing commands, and is shown in the RASIC language. It is not limited. Next, the operation will be explained using the flowchart shown in FIG. First, when a display term name (in this case, Japanese or English) is input in advance by the terminal user from the keyboard l (step 5T5), the control unit 15 of each image display terminal 13 inputs the contents of this instruction. keep it. When the image data sending device 7 sends the image data 9 and receives it at the communication section 14 (step 5T6), the control section I5 temporarily stores it in the image data holding section 16 (step 5TY), and the image data 9 has already been manually held. Check whether the instruction content (instructed language) is the data set of the internally held image data (step 5T8), and if so, the start address of the data set (19a or 19b) to be used and the non-character image. The start address of the data 18 is input to the skin image processing unit 4.
If not (Step 5T9), the drawing processing section 4 notifies the drawing processing section 4 of the starting address of the first data set 15a in the image file and the starting address of the non-character image data (Step 5TIO). The non-character image data 18 and the data set (19a or 19b) at the specified address are stored in the image data holding unit 1.
6, expand it into a figure, etc., and draw it as a visual image in the frame buffer memory 5.Step STI
1) The CRT 6 repeatedly reads out the contents of the frame buffer memory 5 in accordance with the scanning frequency and displays them on the CRT (step 5T12). By performing the above operations for each image display terminal 13, each image is displayed. FIG. 6 shows an example of a display by the image display terminal 13 according to the present invention, in which (a) is a display in English, and (b) is a display in Japanese. Furthermore, character image data does not need to have all the data related to characters individually as a data set;
) may be used as non-character image data. In the above embodiment, a CRT 6 was used as the display device, but a liquid crystal display, a plasma display, a projection TV, etc. may also be used. Further, although a communication line using R3-232CI/F or the like is used, the image data 9 may be transmitted via LAN such as Ethernet or wirelessly. Also,
The indication of the language ending for display does not have to be a direct indication of the language core, as long as it corresponds to the language, such as nationality or registration number. Furthermore, in the above embodiment, the type of data set is language (Japanese and English), but it may also be different words with the same meaning content, such as adult human language and dwarf human language. Further, although drawing commands such as a straight line, rectangle, circle, and character string are used as image data, direct pixel values may also be used. Further, although the keyboard 1 is used as an input means, a touch panel, buttons, etc. may also be used. Further, although the image data is configured as character image data consisting of non-character image data and a plurality of data sets, the same effect can be obtained even if all image data corresponding to each language is prepared.

【Effect of the invention】

As described above, according to the present invention, the image data sending device sends image data consisting of character image data and non-character image data consisting of a plurality of data sets, and the image data is stored in the image display terminal. held internally in the
Since the image is displayed using the data set of the image data and non-text image data specified by the user for each image display terminal, it is easy to change and display the word or phrase specified for each image display terminal. This has the effect of providing an image display system that can perform

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an image display system according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of an image output section in the image display system of the present invention, and FIG. 3 is a file of image data. A diagram showing the structure; FIG. 4 is a diagram showing specific examples of non-character image data and character image data;
FIG. 5 is a flowchart explaining the operation of the image display system of the present invention, FIG. 6 is a diagram showing an example of image display by the image display terminal of the present invention, and FIG. 7 is a diagram showing the configuration of a conventional image display terminal. FIG. 8 is a flowchart explaining the operation of a conventional image display terminal. In the figure, 7 is an image data sending device, 9 is image data, 10 is a communication line, 13 is an image display terminal, 1 and 6 are image data holding units, 18 is non-text image data, 19 is text image data, 19a, 19b is a data set. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Patent applicant: Mitsubishi Electric Corporation (2 others) 18: Functional and intellectual property rights Figure 2, title of invention image display system 3, relationship with amendment person case Patent applicant address: Tokyo 2-2-3 Marunouchi, Chiyoda-ku Name (601) Mitsubishi Electric Co., Ltd. Representative Moriya Shiki 4 Address of agent Zip code 105 1-4-10 Nishi-Shinbashi, Minato-ku, Tokyo Details of the invention in the specification Explanation column 6, page 8, line 3 of the specification of contents of the amendment, there is a figure, and the letter j in BASIC language is a figure, and the numerical drawing command is expressed in a notation method unique to this embodiment. "indicated by". that's all

Claims (1)

[Claims] In an image display system in which a plurality of image display terminals simultaneously receive image data sent from an image data sending device via communication lines, and display the received image data simultaneously, the image data is displayed. Part or all of the image data related to characters in the image is composed of character image data consisting of multiple data sets expressed by different words with the same meaning and content, and non-character image data that is image data other than this character image data. The image display terminal includes an image data holding unit that holds received text image data and non-text image data, and of the image data held in this image data holding unit, non-text image data and external An image display system comprising: an image output unit that displays a data set of character image data individually designated for each terminal as an image.