JPH0548673B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a terminal device in a video tech system, such as a so-called captain.

[Conventional technology]

Videotechs basically consists of an information center equipped with terminal equipment, a telecommunications network, a host computer, etc. In this system, through the process of information retrieval, a terminal device requests screen data to obtain a predetermined screen from the information center via the telecommunications network, and based on this, the information center The requested screen data is transmitted to the terminal device via the network, and the terminal device can be caused to display the requested screen. This system is described in, for example, Japanese Patent Application Laid-Open No. 56-54482.

This system basically performs information retrieval in a conversational manner, and is often used in a tree type (tree type) as shown in Figure 5, in which key operations are performed according to on-screen instructions. be.

[Problem that the invention seeks to solve]

In this method of use, if the line to the information center is disconnected once, or if the line is disconnected during use for some reason (for example, in the case of a captain, if the carrier is disconnected for more than one second during use) (In addition, if you leave the terminal device unattended for a certain period of time, the line will be disconnected.), If you do not remember the previous screen number after calling the information center again, please call the above-mentioned screen number. This has the disadvantage that the screen cannot be reached unless tree-type operations are performed, making the operations extremely troublesome.

In view of this, the present invention aims to improve usability by easily displaying the screen before the line was disconnected after the line was disconnected and reconnected.

[Means for solving problems]

In order to solve the above problems, the present invention is provided with means for detecting screen number data from screen data and a memory 9a for storing this screen number data, and the screen number data is stored in the memory 9a based on user operations. The screen number data is transmitted to the information center 17 via the telecommunications network, and the data of the corresponding screen can be requested.

[Effect]

In the above configuration, after the line is disconnected and reconnected, for example, the user performs an operation to supply the double-sided number data stored in the memory 9a to the information center 17, thereby automatically requesting the screen before the line disconnection. It is carried out in a regular manner.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIG.

This example is an example applied to a so-called captain system.

In the figure, 1 is a line connection device that switches the connection of the telephone line 2 to the user terminal side or the telephone 3 side.

Further, 4 is a modem on the user terminal side, and this modem 4 is connected via a modem interface 5.
Connected to CPU6. The modem 4 is for demodulating signals from the telephone line 2 and modulating signals output to the telephone line 2.

Also, 7 is a program ROM, 8 is a character generator, and 9 is a work RAM, respectively.
Connected to CPU6.

Further, 10 is a keypad, and the user can control the operation of the terminal device by operating the keys on this keypad 10. This keypad 10
Control data from remote control interface 1
1 to the CPU 6.

Further, 12 is a display memory, and 13 is a memory control circuit, each of which is connected to the CPU 6. The memory control circuit 13 is a circuit that controls access from the CPU 6 to the display memory 12, controls reading for display, and the like.

Further, data read from the display memory 12 is supplied to the picture tube 15 via the display control circuit 14. The display control circuit 14 colors the picture tube 15 according to the data from the display memory 12.
This is a circuit that creates an output signal to.

Further, 16 is a display timing signal generation circuit, and this circuit 16 is a circuit for generating various signals for display such as a synchronization signal to the picture tube 15 and a display position signal.

When the terminal and the information center 17 are connected via the telephone line 2, the user inputs from the keypad 10 to request a desired screen. When this input is made, the CPU 6 reads the data and outputs the data to the modem 4 in accordance with the format (PLP). This data is transmitted to the information center 17 via the telephone line 2 as a request signal. Screen data is sent from the information center 17 in accordance with the request. On the terminal side, the CPU 6 reads the data, and if it is code transmission data, reads the font from the character generator 8 according to the data, and writes it into the display memory 12 together with the color data. When writing, information for the header is written to the header area, and information for the main text is written to the main text area. At this time, there is judgment data for header or main text information, but there is no judgment data for classification of information contents into headers, such as screen titles, numbers, messages, etc. The data written in the display memory 12 is output as a display signal to the picture tube 15 according to its contents.

Figure 2 shows the screen configuration of the captain. The display screen is divided into a header part and a main text. The main text contains normal information, and the header contains messages from the center and the title of the screen. , screen number, and other information are displayed.

The above is the same as the conventional configuration, and in such a configuration, if you want to display the screen again after the line is cut off or intentionally interrupted,
For example, always write the screen number in some way (memo level)
If you don't remember it, you have no choice but to access it from the beginning using tree-type operations, which is cumbersome.

Therefore, in this example, the work RAM 9 is provided with a numeric register 9a for writing screen number data, and the keypad 10 is provided with an automatic send key (not shown). Screen number data is stored in advance in the number register 9a, and when you want to display that screen again after the line is disconnected,
By operating the automatic sending key, the stored screen number data is automatically sent to the information center 17.
It was designed to be sent to.

By the way, as mentioned above, the screen number cannot be used for identification between the captain and the data. However, the display position of the screen number is fixed at the digits from the 20th character to the 28th character in the header section. and,
The position data is sent mixed with title data, etc. of other positions, and the position is APS
(Act Position Set), automatic advance, and multi-digit advance. In other words, the display position of the screen number is determined and is different from the display position of other titles and the like. Also, messages without screen numbers are displayed up to the same position as the screen number, but these messages are usually not numbers and can be distinguished from the screen number data.

Considering the above points, in this example, screen number data is detected and written into the number register 9a according to the flowchart shown in FIG.

First, when screen data arrives, it is determined whether it is header information or body information. Next, if it is header part information, it is determined whether the display position is within the 20th to 28th digits, and if it is within that range, it is determined whether or not it is numeric data. In this case, if it is a code transmission of rank 2 or higher, it will be determined based on that code, and if it is a pattern transmission such as rank 1,
Number patterns can be stored in advance and determined by pattern recognition. If the data is determined to be numeric data, it is written to correspond to each digit of the numeric register 9a. This operation is performed every time screen data is received, and new screen number data is always written into the numerical register 9a.

Furthermore, when the automatic sending key is operated, screen number data is automatically sent to the information center 17 according to the flowchart shown in FIG. Screen data will be sent.

First, when the automatic sending key is pressed, the "*" code, the screen number data from the numeric register 9a, and the "#" code are sequentially sent to the information center 17. As a result, the information center 17 sends screen data corresponding to the screen number data.

This example is configured as described above, and when the screen is displayed again after the line is disconnected, all you have to do is press the automatic send key on the keypad 10. Compared to the conventional example, the operation is simpler and the usability is greatly improved. improves.

According to the embodiment described above, the screen number data is stored in the numerical register 9a of the work RAM 9, but as shown by the broken line in FIG. Good too. In this case, there will be no problem even when the power is turned off. Further, according to the above embodiment, the screen number data is transmitted to the information center by pressing the automatic transmission key of the keypad 10.
After the line is connected, the data may be sent automatically without any key operation. Further, although the above-described embodiment is an example applied to a captain system, the present invention can be similarly applied to other video systems where the screen number display position is not determined. In other words,
There is no problem if you first agree with the person who will input the screen data and its display position.

〔Effect of the invention〕

According to the present invention described above, when the screen is displayed again after the line is disconnected, for example, by simply pressing the automatic send key, the screen can be displayed as before the line was disconnected, and the screen number can be displayed with a memo or tree. There is no need for complicated operations such as mold operations, which simplifies the operation and greatly improves usability.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
The figure shows the screen configuration, and FIGS. 3 and 4 are flowcharts for explaining the operation of one embodiment, respectively.
FIG. 5 is a diagram for explaining a conventional example. 1 is a line connection device, 2 is a telephone line, 9a is a numeric register, 18 is a nonvolatile memory, and 17 is an information center.

Claims (1)

[Claims] 1 Screen data requested by the information center via the telecommunications network is transmitted via the telecommunications network, and the screen number data is detected from the screen data on the terminal device that is configured to display the requested screen. and a memory for storing the detected screen number data, and transmits the screen number data stored in the memory to the information center via the telecommunications network based on a user's operation. A terminal device that allows you to request data on the corresponding screen.