JP2503416B2 - CRT display shared control device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a CRT display control device, and particularly to a CRT display shared control suitable for realizing an information processing terminal and a videotics communication terminal with one terminal. Regarding the device.

[Conventional technology]

In recent years, information processing terminals such as personal computers have become widespread not only in general enterprises but also in individual homes, and videotics communication services such as captain systems have gradually spread. Therefore, it is expected that there will be more and more information processing terminals and terminals for videotics communication services in the future. In that case, a CRT display terminal for information processing equipment and a CRT display terminal for videotics communication services. There are many problems in terms of cost and space to provide and separately.

Therefore, it is considered that one CRT display is used for both information processing and videotick processing. In that case, conventionally, when the mode is switched, the pattern to be output for display related to information processing ( Hereinafter, only the display pattern for information processing is displayed on the CRT display screen, and when receiving the video-tick communication service, the pattern to be output and output provided by the video-tick (hereinafter referred to as the display pattern for the video-tick) Name)
I was only trying to display it on the screen.

[Problems to be solved by the invention]

However, the above-described conventional configuration has a drawback that the information processing display pattern cannot be displayed while receiving the videotics communication service. Therefore, for example, even if the control unit of the terminal is configured to execute the control of the information processing and the control of the videotics communication process in parallel, in the conventional display system, the operator can display both screens at once. Since it cannot be seen, it is virtually difficult to perform operations on both.

The present invention has been made in view of such circumstances, and an object thereof is to be able to simultaneously recognize not only a display pattern for videotics but also a display pattern for information processing when receiving a videotics communication service. In this way, it is intended to use the CRT display more effectively.

[Means for solving problems]

In the present invention, the number of pixels of a CRT display terminal for information processing is generally large, for example, 1120 × 750 pixels, whereas the number of pixels of a CRT display terminal for a videotics communication service is 248 × 204 pixels for a rank 2 captain, for example. Focusing on the fact that there are significantly fewer points, use a CRT display terminal with a large number of pixels, display a display pattern for videotics on a part of the screen, and display a display pattern for information processing on the other part. It was done. That is,
In the first invention, for example, as shown in FIG. 1, a memory A having a storage area corresponding to the number of pixels sufficiently larger than the number of pixels necessary for displaying the display pattern for videotic, and the memory A Write / read control means B for controlling writing / reading of the memory A, and information read from the memory A by the write / read control means B is converted into a video signal.
A video signal generating means D to be added to the CRT display C, and C
Input means E for inputting whether to use the RT display C exclusively for information processing, or for simultaneous use of information processing and videotick processing (hereinafter referred to as “combined use”); When the designation is input, the information according to the information processing display pattern is written in the memory A by the writing / reading control unit B, and when the designation for both the information processing and the video tick processing is input, the video tick is used. The writing / reading control means B writes information according to the display pattern in a partial area of the memory A, and the control means F writes the display information for information processing in another area of the memory A.

In addition, in the second aspect of the present invention, for example, as shown in FIG. 2, in addition to the configuration of FIG. 1, a graphic of a plurality of operation keys for a videotics communication service is displayed on the CRT display C. Storage means G for storing display information for
And a detection means H for detecting which one of the figures of the plurality of operation keys displayed on the screen of the CRT display C is operated, and the control means F ′ is designated by the input means E for information processing only. Is input, the information according to the information processing display pattern is written in the memory A by the writing / reading control unit B, and when the designation for both the information processing and the video tick processing is input, the video tick display is performed. Display information according to the pattern is written / read-out control means B
Is configured to write in a partial area of the memory A and the display information stored in the storage means G in another area of the memory A.

[Action]

In FIG. 1, when the information processing-only designation is input from the input means E, the control means F writes and reads information corresponding to the information processing display pattern, if any.
The information is written in the memory A by the writing / reading control means B, for example, is read out at a constant cycle, is converted into a video signal by the video signal generating means D, and is written in the CRT.
Added to Display C. Therefore, only the information processing display pattern is displayed on the screen of the CRT display C.

When a designation to be used for both information processing and video ticks processing is inputted from the input means E, the control means F writes information corresponding to the video ticks display pattern, if any, in the memory A by the read / write control means B. If a display pattern for information processing is present, information is written in a part of the area, and information corresponding thereto is written in another area of the memory A. Therefore, CRT
On the screen of the display C, the display pattern for video ticks and the display pattern for information processing are combined and displayed.

In FIG. 2, when the information processing-only designation is input from the input means E, the same processing as that in FIG. 1 is performed, but when the information processing and the videotics processing are both designated, If there is a display pattern for videoticks, the control means F'writes the display information corresponding to the display pattern into the partial area of the memory A by the read / write control means B, and the display information stored in the storage means G is stored in the memory A. Write to other areas of. Therefore, on the screen of the CRT display C, the display pattern for videotics and the graphic of the operation key are displayed. Then, when the figure of the displayed operation key is operated by pressing the touch input device or instructing with a light pen, this is detected by the detecting means H.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 3 is a block diagram of an embodiment of the present invention, in which 1 is a control unit, 2 is a CRT control circuit connected to the control unit 1,
3 and 4 are a code memory and an image memory whose writing and reading are controlled by the CRT control circuit 2, and 5 is a character and figure generation which generates a dot pattern corresponding to the code output from the code memory 3 and controlled by the CRT control circuit 2. A display memory 6 is a display memory which is controlled by the CRT control circuit 2 and stores the output of the character / graphics generator 5. The storage capacity of the display memory 6 and the image memory 4 for one screen is the display pattern for videoticks. Has a capacity corresponding to the number of pixels sufficiently larger than the number of pixels required to display. Further, 7 is a look-up table for giving color information to the dot patterns read from the image memory 4 and the display memory 6 in synchronization with the CRT control circuit 2, and 8 is a digital output of the look-up table converted into an analog output. D / A converter that generates a video signal, 9 is a CRT display that receives the output of D / A converter 8, and 10a is a CRT
A touch sensor mounted on the screen of the display 9. The touch sensor 10a and the contactor 10b are touch input devices.
10 are configured.

The control unit 1 includes a microprocessor (MPU) 20, RAM 21, ROM 22, and interfaces 23, 24 connected to the microprocessor 20, and a line 13 is connected to the interface 23 via a line control mechanism 11. , Keyboard on interface 24 1
2, the CRT control circuit 2, and the touch input device 10 are connected.

In the ROM 22 in the control unit 1, display information (hereinafter referred to as operation key display information) for displaying on the screen of the CRT display 9 the figures of a plurality of operation keys necessary for the operation of the videotics communication to receive the service. ), Area designation information for designating in which area of the screen of the CRT display 9 the figures of the plurality of operation keys are displayed as an information processing display pattern, and in which area the videotic display pattern is displayed. Area designation information to specify the above, the operation keys and touch input device displayed on the CRT display screen
A correspondence table that correlates 10 pieces of output information is stored in advance.

4 to 6 are flowcharts of the processing example of the MPU 20, and the operation of this embodiment will be described below with reference to the drawings.

When a power switch (not shown) is turned on, power is supplied to each unit, and the MPU 20 initializes each unit as shown in FIG. 4 (S1) and waits for input of a processing mode from the keyboard 12 (S2). ).

Now, when an instruction to dedicate the CRT display 9 to the information processing display pattern is input from the keyboard 12, the MPU2
At 0, the process proceeds to the dedicated mode processing side of steps S3 to S5, and the same processing as that of the conventional information processing CRT display terminal is performed. In the display control of step S3 in this case, the MPU 20 passes the display information and the necessary parameters to the CRT control circuit 2 through the interface 24, and under the control of the CRT control circuit 2, the code memory 3 or the image memory. This is done by writing the display information in 4. And the code memory 3
The output of is converted into a dot pattern by the character / graphics generator 5 and written in the display memory 6, and the contents of the image memory 4 are read out synchronously under the control of the CRT control circuit 2, Color information is added in the up table 7,
A video signal is generated by the D / A converter 8, and the information processing display pattern is displayed on the CRT display 9. At this time,
The entire area of the screen is used to display the information processing display pattern. When the keyboard 12 issues an instruction to end the information processing only mode, the MPU 20 detects this (S
4) After performing necessary processing at the end (S5), the process returns to step S2.

On the other hand, when an instruction is input from the keyboard 12 to use the CRT display 9 as both the information processing display pattern and the videotics display pattern, the MPU 20 causes the steps S6 to S to be performed.
Move to 9 dual-purpose mode processing side. That is, first, the operation key display information and the area designation information stored in the ROM 22 are read out, and the CRT control circuit together with the parameter including the information designating that the figure of the operation key should be displayed at the predetermined position of the CRT display screen is also included. Display processing for passing to 2 is performed (S6).
In response to this, the CRT control circuit 2 writes the display information of the operation keys in a designated area of the image memory 4, for example. As a result, a graphic of the operation key is displayed as a display content for information processing on a part of the screen of the CRT display 9 as shown in FIG. 7, for example. In FIG. 7, reference numeral 70 is a display area of a video-tick display pattern, 71 is a display area of an information processing display pattern, a to w, 0 to 9, *, #.
Indicates the type of operation key.

Next, the MPU 20 executes the display process of the display pattern for video ticks until the end key of the keyboard 12 is pressed (S7, S8). In the display control of the display pattern for videoticks in step S7, when the operator touches the portion of the touch sensor 10a facing the operation key displayed on the screen of the CRT display 9 with the contact 10b, the touch input device 10 Depending on the output, the MPU 20 performs the processing shown in FIG. 5, for example, and detects the detection information of the touch input device 10 and the ROM 22.
The type of operation key operated this time is determined from the correspondence table stored in advance in (S11), and processing corresponding to the type of operated key is performed, for example, the interface 23 and the line control mechanism 11 are operated. Processing such as transmitting a signal corresponding to the key is executed (S12). Therefore, by the operator inputting as many key operations as necessary using the touch input device 10, for example, the key information necessary at the start of the videotics communication service can be sent to the videotics communication center or the like. it can.

Further, during the processing of step S7, when the reception of the videoticks communication service is started and the information regarding the videoticks display pattern is input via the line control mechanism 11 and the interface 23, the MPU 20 may, for example, As shown in the figure, the information obtained by subjecting the received information to necessary preprocessing is temporarily stored in the RAM 21 (S21), the information is read at an appropriate timing, and the content is stored in the ROM 22 in the designated area of the CRT display 9. It is passed to the CRT control circuit 2 together with the parameter including the information for instructing to be displayed on the SRT (S22). In response to this, the CRT control circuit 2 stores the display information in the designated area of the code memory 3 or the image memory 4. Then, in the same manner as described above, the contents of the image memory 4 and the display memory 6 are read synchronously,
For example, as shown in FIG. 7, the CRT display 9 outputs a videotic display pattern (a letter and a picture of a mountain are shown as an example) together with the figure of the operation key.

As described above, according to the present embodiment, the information processing display pattern displayed on the CRT display screen in the dual-purpose mode is the operation key figure for the videoticks communication service, and the touch input device 10 is provided, so that the videotick It is no longer necessary to purchase a new remote control keyboard for mobile phones, and it is possible to have a compact and inexpensive terminal configuration.If the type of operation key is changed, it is possible to deal with it by simply rewriting the correspondence table in ROM22. Become. In addition, touch input device 10
Can be used not only for operating the operation keys for the videotics communication service but also for general information processing. Instead of using the touch input device 10, use a light pen, and use the light pen for instructions. The control unit 1 may be configured to add a process of determining the type of the operation key from the position on the displayed CRT display screen.

In the above embodiment, the information processing display pattern displayed on the CRT display screen in the dual mode is the operation key figure for the videotics communication service, but the present invention is not limited to this, and other It is also possible to display a display pattern for information processing. For example,
When the control unit 1 is capable of executing control of information processing and control of videotics communication processing in parallel, the same contents as the information processing display pattern performed in step S3 are displayed on the CRT display 9. You may let me. In this case, the display area of the display pattern for information processing is restricted from that in the dedicated mode, and the designation of which area to display is stored in the ROM 22 in advance, for example. In this case, since the operation keys for the videotics communication service are not displayed, the remote controller keyboard is attached to the terminal.

In each of the above-mentioned embodiments, the display position of the display pattern for videoticks does not necessarily have to be fixed to a part of the screen. For example, a window is set on the screen for information processing, and the display pattern for videoticks is set in this window. Is preferably displayed because it is possible to reduce the empty area of the display screen.

〔The invention's effect〕

As described above, according to the present invention, only the information processing display pattern is displayed on the screen of the CRT display C or the videotic display pattern is displayed in addition to the display pattern according to the designation from the input means E. Can
There is an effect that both display contents can be recognized at the same time using one CRT display. Therefore, for example, if the control unit of the terminal is capable of concurrently executing control of information processing and control of videotick communication processing, the operator can easily perform both processing in parallel at the same time. .

In addition, the touch input that displays the figure of multiple operation keys for videotick communication service on the same screen together with the display pattern for videotics when dual-use is specified and detects which figure of multiple operation keys has been operated According to the configuration provided with the detecting means H such as a container and a light pen, it is not necessary to purchase a conventional remote controller keyboard for exclusive use of videotics, so that the configuration can be made inexpensive and when the specification of the remote controller keyboard is changed. Can be dealt with easily.

Therefore, by applying the present invention to a terminal, it is possible to easily realize an inexpensive and small information processing terminal and a composite terminal which is a videotics user terminal.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of one configuration of the present invention, FIG. 2 is an explanatory diagram of another configuration of the present invention, FIG. 3 is a block diagram of one embodiment of the present invention, and FIG. 4 is CRT sharing performed by the MPU 20. A flow chart showing an outline of control, FIG. 5 is a flow chart of an example of processing when the MPU 20 performs a key operation, FIG. 6 is a flow chart of an example of processing when the video ticks display information is received by the MPU 20, and FIG. 7 is a CRT display. It is a figure which shows the example of a display of a screen. In the figure, A ... memory, B ... write / read control means, C ... CRT display, D ... video signal generation means, E ... input means, F, F '... control means, G ... storage means , H ... Detection means, 1 ... Control unit, 2 ... CRT control circuit, 3 ... Code memory, 4 ... Image memory, 5
...... Character / Figure generator, 6 ... Display memory, 7 ... Lookup table, 8 ... D / A converter, 9 ... CRT display, 10 ... Touch sensor, 11 ... Line control mechanism, 12 ...
… Keyboard, 20 …… MPU, 21 …… RAM, 22 …… ROM, 23,
24: Interface, 70: Display area for videotic display pattern, 71: Display area for information processing display pattern.

Claims (4)

(57) [Claims] 1. A memory having a storage area corresponding to the number of pixels sufficiently larger than the number of pixels required to display a pattern to be output, which is served by videotics, and controls writing and reading of the memory. Writing / reading control means, a video signal generating means for converting the information read from the memory by the writing / reading control means into a video signal and adding the video signal to a CRT display, and using the CRT display exclusively for information processing, or When input means for inputting designation of whether to use at the same time for processing and videotick processing and designation for information processing only is inputted from the input means,
When the information corresponding to the pattern to be displayed and output related to information processing is written in the memory by the writing / reading control means and the designation to use the information processing and the videotic processing at the same time is input, the videotic service is provided. The information corresponding to the pattern to be displayed and output is written in the partial area of the memory by the writing / reading control means, and the information according to the pattern to be output and output related to information processing is stored in the other memory. A CRT display shared control device comprising a control means for writing in a region. 2. A memory having a storage area corresponding to the number of pixels sufficiently larger than the number of pixels required for displaying a pattern to be output which is served by videotics, and controls writing and reading of the memory. Writing / reading control means, a video signal generating means for converting the information read from the memory by the writing / reading control means into a video signal and adding the video signal to a CRT display, and using the CRT display exclusively for information processing, or Processing means and input means for inputting designation of whether to use at the same time for videotic processing, and storage means for storing display information for displaying graphics of a plurality of operation keys for videotic communication service on the CRT display When the information processing-specific designation is input from the input means, the pattern to be displayed and output related to the information processing is displayed. The same information is written in the memory by the writing / reading control means, and when a designation to use at the same time for information processing and video ticks processing is input, display according to the pattern to be output that is served by video ticks Information is written in a partial area of the memory by the write / read control means, and the display information stored in the storage means is written in another area of the memory as a pattern to be output for display related to information processing. A CRT display common control device comprising: a control unit; and a detection unit that detects which of the figures of the plurality of operation keys displayed on the screen of the CRT display is operated. 3. The CRT display shared control device according to claim 2, wherein the detection means includes a touch input device including a touch sensor mounted on the screen of the CRT display, and a display on the CRT display screen. Table means for associating the graphic of each operation key with the output information of the touch input device, and which operation key has been operated is determined based on the output information of the touch input device and the contents of the table means. A CRT display sharing control device including a determination means. 4. The CRT display shared control device according to claim 2, wherein the detection means is a light pen and an operation key operated from a position on the CRT display screen designated by the light pen. A CRT display sharing control device, comprising: