JPS62176388A - Information system - Google Patents

Abstract

PURPOSE:To offer information rich in content to the user by transmitting page picture data from a center to a terminal equipment side and superimposing on a television video signal and displaying. CONSTITUTION:The host computer 4 of the center 3 receives the requests from the terminal equipments 1A, 1B... through a communication network 2, reads the corresponding page picture data from a video tex data base 6 and supplies. A CATV line 10 receives a general broadcasting by a television antenna 15, a satellite broadcasting by a parabola antenna 16 and a television video signal TVIN0 obtained from a video signal recorder 17 and supplies to the terminal equipments 1A, 1B... and television receives 11A, 11B.... When one of receiving channels of the television video signal is designated, in the respective terminal equipments, designated channel data is transmitted to the center 3, the center 3 transmits the corresponding page picture data to the request outputting terminal to superimpose and display on the television video.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Industrial field of application B. Overview of the invention C. Conventional technology Problems to be solved by the invention E. Means for solving the problems (Fig. 1) F. Effects (Fig. 1)
Figure) Example G (G1) Configuration of information system (Figures 4 to 7) (G2
) Basic data processing procedure (Figure 8) (G3) Information system operation (1) Page image screen display mode (Figure 2) (2) Television video screen display mode (Figure 1) (3) Screen Synthetic display mode (Figure 3) (4) Automatic screen composite display mode (Figure 1) H Effects of the invention The center can provide image information to a large number of distribution destinations.

B. Summary of the Invention The present invention provides an information system capable of supplying television video information and page image information to a plurality of terminal devices, in which one piece of television video information is designated and input to the terminal device. When the center has corresponding page image information, the page image information is displayed superimposed on the received television video information, so that more information can be displayed on the terminal device. do.

C. Prior Art Conventionally, for example, an information system has been proposed in which various internal information is supplied from a center to terminal devices installed at a large number of distribution destinations within one company.

Problems that the invention aims to solveHowever, the information that can be distributed by conventional information systems is basically limited to information consisting of an arrangement of symbols, numbers, characters, etc., and even if such information is provided, The display format was difficult to understand intuitively, and it was insufficient for distributing a wide variety of information with rich content.

The present invention has been made in consideration of the above points, and the present invention enables a terminal device to receive information consisting of a television video signal supplied from a television video signal source such as general television broadcasting, satellite broadcasting, or a video recording device. In addition, by superimposing the page image data stored in the center on the television video signal, it is possible to supply rich and useful information to the terminal device. be.

E Means for Solving the Problem In order to solve the problem, in the first invention, a plurality of terminal devices IA capable of receiving television video information,
The page image information stored in the center 3 can be supplied to the IB..., and the terminal device I
When one of the television video information that can be received at A, IB, etc. is specified and input, the specified input data is transmitted to the center 3, and the page image information corresponding to this specified input data is sent to the center 3. , the corresponding page image information is sent from the center 3 to the terminal devices IA and I.
B...... and the terminal devices IA, IB...
In . . . , the transmitted page image information is superimposed on the specified input television video information.

Further, in the second invention, in addition to the first invention,
In the superimpose display mode according to the invention, the television video display mode or the page image display mode is selected and specified from the terminal devices IA, IB...
The selection designation input data is transmitted to center 3, and center 3
In response to the selection designation input data, the terminal device IA, 1
B... is switched from superimposed display mode to television video display mode or page image display mode.

F action When one of the receiving channels of the television video signal is designated in each terminal device, the television video of the designated channel is displayed on the monitor 22, and the designated channel data is transmitted to the center 3. , determines whether or not there is page image data corresponding to the specified channel in the videotex database 6 of the center 3, and if there is, the page image data is transmitted to the terminal device from which the request was made and the received TV Display superimposed on the John video.

By doing this, information that the center 3 wants to add (for example, an explanatory article, etc.) can be superimposed on the same display screen regarding the received television video, so that even richer information can be displayed on the terminal device. It can be provided to users.

Therefore, if the user of the terminal device that is displaying the superimposed display wants to display only either the displayed television image or the page image, the user of the terminal device can switch to the television image display mode. or page image display mode can be selectively input. This selection designation input data is transmitted to the center, and in response, the center switches the terminal device from the superimposed display mode to either the television video display mode or the page image display mode.

In this way, if the user of the terminal device wishes to read either one of the superimposed displays instead of the superimposed display, he or she can select this as necessary, thus obtaining an information system that can meet even more realistic demands.

Embodiment G A detailed explanation will be given below with reference to the drawings as an embodiment in which the present invention is applied to an information system within one company.

(G1) Configuration of information system Figure 4 shows the information system as a whole, with a large number of terminal devices IA, IB, etc. installed in predetermined departments within the company.
communicate with each other! 2 to the center 3. In this embodiment, the information system is configured to distribute information necessary for business management to each section that constitutes the management department of the company, and terminal bags filA, 1B,
. . . is installed, for example, in the offices of the company's executives, department managers, section managers, and section chiefs.

The center 3 includes a central processing unit 5 controlled by a host computer 4, a videotex database 6 storing page image data, and an input device 7.

The host computer 4 includes terminal devices LA, IB, etc.
When you receive a request from ..., send this message to ¥! 42, the corresponding page image data is read from the videotex database 6, and is supplied to the requesting terminal devices IA, IB, . . . via communication m2. In addition to this, the central processing unit 5 has terminal devices IA, IB, etc.
Even if there is no request from..., all or part of the terminal devices IA, 1B... as necessary based on the data input from the input device 7 of the center 3. Predetermined page image data can be supplied, thereby making it possible to distribute emergency information.

The center 3 also has a data/video conversion device 8, and operates the data/video conversion device 8 when predetermined page image data (i.e., "attendance table" page image data) is retrieved from the Videotex database 6. is converted into a television video signal TVIN, and supplied to the CATV line 10.

The CATV line 10 receives general broadcasts received by a television antenna 15, rain broadcasts (for example, weather broadcasts) received by a parabolic antenna 16, and other television video signal sources 17 (for example, a video signal recording device).
Television video signals obtained from TV
o, and supplies it to the terminal devices IA, IB, . . . and the television receivers 11A, 11B, . Here, the television receiver 11A, IIB...
... are installed, for example, in specific workplaces, employee cafeterias, lobbies, etc., and are designed to provide television image information to general company equipment.

In addition to the above configuration, the information system shown in FIG. When a request for dispatch of a vehicle is issued to a host computer 4, the host computer 4 instructs the dispatch center 19 to arrange dispatch of a vehicle via the communication network 2, receives a report of the result, and notifies the terminal device that received the request to that effect. It is made possible.

In addition, the communication network 2 includes input devices 12A, 12B, etc. disposed at predetermined positions other than the terminal devices IA, IB, etc.
... are combined so that, for example, code data specifying emergency information can be input.

As shown in FIG. 5, the terminal devices IA, 1B, .

The Videotex data processing device 21 has a central processing unit (CPU) 31 configured as a microcomputer,
It is connected to the communication network 2 through the bus 32, the input/output device 34, and the modem 35 according to the program read from the program ROM 33 through the bus 32, and when page image data is taken in through the modem 35 and the input/output device 34, it is stored in the RAM 36. Process data.

Further, the CPU 31 of the Videotex data processing device 21 is connected to the main unit key manual device 23 through an input/output device 37. The main unit key human power device 23 has a CPU 41 with a one-chip microcomputer configuration and a program ROM 4.
2. It has a RAM 43 and its input/output device 44, and when each key of the key matrix 45 is operated by the key top arranged on the keyboard, the CPU 41 transfers the input data to the program ROM 42 through the input/output device 44.
After loading the data into the RAM 43 according to the program, the data can be transferred to the CPU 31 through the input/output device 44 and further through the input/output device 37 of the videotex data processing device 21.

On the other hand, when the CPU 31 of the Videotex data processing device 21 provides code data for remotely controlling the monitor 22, the videotex data processing device 21 sends out the remote control signal RMT through the input/output device 44. Further, lighting command data or alarm command data is received from the CPU 31 through the input/output device 37.44 to the CPU 41 of the main unit key human power device 23, and the display element 46 made of an LED, for example, or the alarm element 47 made of a buzzer, for example, is operated.

The handset key manual device 24 has a key switch 48 that is controlled to open and close by operating the key top, and its input data is supplied to the CPU 41 via the input/output device 44 of the parent device key manual device 23 .

Here, the key switch 48 is a key switch (“present” switch, “away” switch, “absent” switch, The key switch 48 is provided in a one-to-one relationship with respect to the "Vehicle Dispatch" switch), and thus the same key manual data as when the keys of the key matrix 45 are operated by the key switch 48 can be supplied to the CPU 41.

In addition, the slave unit key manual device 24 includes the parent unit key manual device 23.
The display element 4 corresponding to the display element 46 and the alarm element 47 of
9 and an alarm element 50, and is controlled by the CPU 41 of the main unit key human power device 23 so as to operate simultaneously and in parallel with the display element 46 and alarm element 47 when they operate.

The monitor 22 includes a television signal receiving section 5 that receives the television video signal TVINO from the CATV line 10.
1. This television signal receiving section 51 is a CA
After one of the television video signals of a plurality of channels arriving from the TV line 10 is selected by the built-in television tuner circuit, the built-in standard television signal decoding circuit similarly selects one of the television video signals of a plurality of channels arriving from the TV line 10. A three-primary color signal RGB 1 having the format of a television signal according to the following system is supplied to a cathode ray tube (CRT) 54 through a switch circuit 53 of a display device 52, and a reproduced image of the received television video signal is displayed on the CRT 54. do.

Furthermore, the television signal receiving section 51 similarly reproduces the audio signal AUD 1 from the television video signal that has been selected and received, and supplies this audio signal AUD 1 to the speaker 56 through the switch circuit 55 of the sound device 58. Plays back the audio of the television video signal that is selected and received.

The receiving channel selection operation of the television signal receiving section 51 is controlled by the control signal C0N1 of the remote control circuit 57. The remote control circuit 57 is
It is controlled by the remote control signal RMT supplied from the main unit key human power device 23, and provides the corresponding control signal CON 1 to the television signal receiving section 51. At the same time, when the remote control circuit 57 is controlling the television signal receiving section 51 using the control signal C0N1, the remote control circuit 57 outputs the control signal CON2.
By controlling the switch circuits 53 and 55, the three primary color signals RGB 1 are supplied to the CRT 54, and the audio signal AUD1 is supplied to the speaker 56.

Here, when the key matrix 45 is operated to select a designated channel in the television reception mode (that is, the "TV" display mode), the base unit key human power device 23 transmits the corresponding remote control signal RMT to the CPU 41 via the input/output device 44. The television signal receiving unit 51
to the tuned reception state. The remote control circuit 57 also controls the key matrix 4 of the main unit key manual device 23.
5 is designated as page image data reception mode (i.e. "management information" display mode), control signal C
ON2 switches the switch circuits 53 and 55 to the Videotex data processing device 21 side.

Furthermore, when the key matrix 45 of the main unit key manual device 23 is designated to the superimpose reception mode (that is, the "screen composition" display mode), the remote control circuit 57 controls the television signal reception unit 51 by the control signals cON1 and CON2. The television video signal RGB 1 and the audio signal AUDI are connected to the switch circuit 53.
and 55. At this time, the videotex data processing device 21 alternately switches the switch circuit 53 using the superimpose bit SPI included in the image display signal VTX, based on the key manual data input from the main device key manual device 23. As a result, a screen in which the image signal RGB2 of the image display signal VTX is superimposed on the television video signal RGB1 is displayed.

The videotex data processing device 21 includes a video RAM 61 that supplies the monitor 22 with an image display signal VTX, and a sound generator 62 that supplies the monitor 22 with an audio signal AUD2.

The video RAM 61 obtains an image signal RGB2 for displaying a page image on the CRT 54 and a superimpose bit SPI based on page image data arriving from the communication network 2 via the modem 35.

The sound generator 62 converts the page image data into an image display signal VTX by the CPU 31 and sends it to the C of the monitor 22.
When displaying on the RT 54, a sound representing this (such as a click sound) is generated under the control of the CPU 31,
This allows the user to be audibly notified of the arrival of new image display data.

This is how you communicate from center 3! The page image data transmitted to the terminal devices IA, IB, .
54, and at the same time, an audio signal AUD2 is generated in the sound generator 62 each time each page image data arrives.

Note that the videotex data processing device 21 is connected with a printer 63 and a recording device 64, and is connected to the CPU 3 from the center 3.
The page image data transmitted to 1 can be printed out and recorded.

(G2) In the configuration beyond the basic data processing procedure, the information system includes terminal bag flA,
Based on the request from IB..., the center 3 creates device control data, and uses this device control data to control the terminal devices IA, 1B...
・A responsive operation is performed to display a screen based on page image data and a television video signal by controlling each device.

That is, in step SPI of FIG. 8, when the user operates a desired key using the terminal devices IA, IB, .
The CPU 41 of No. 3 reacts and sends the code data corresponding to the operated key to the videotex data processing device 21 through the input/output device 44 in the next step SP2.

At this time, the CPU 3 of the Videotex data processing device 21
1 takes in the code data from the parent machine key human power device 23 via the input/output device 37 in step SP3 and converts it into a code that can communicate with the center 3, and then converts the code data from the videotex data processing device 21 itself in step SP4. Determine whether the key controlling the key has been operated. If a positive result is obtained here, the CPU 31
The process moves to the next step SP5 and executes the process. The processing of the videotex data processing device 21 itself includes processing such as a two-screen mode, recording and reproduction of page image data on the recording device 64, and printing out data on the printer 63.

On the other hand, if a negative result is obtained in step SP4, the CPU 31 of the videotex data processing device 21
Then, proceed to step SP6 and transfer the key human data to the communication network 2.
The data is sent to the center 3 via.

Here, functions other than the Videotex data processing device 21 may be controlled, such as a request to retrieve page image data stored in the Videotex database 6 of the center 3, a request to input page image data of the attendance list, and a request to input the page image data of the attendance list. 19, a request to set the display mode of the monitor 22, etc.

At this time, the host computer 4 of the center 3 receives and stores the key human power data in step SP7, and then executes the process corresponding to the key human power data in the next step SP8. The device control data is sent back via the communication network 2 to the terminal device that issued the request.

Note that the center 3 performs step S every time a display mode, a reception channel, and a page image data to be extracted are specified from the terminal devices IA, IB, . . .
By storing the request data coming from the terminal in P7, it is possible to create data for understanding the operational status of the information system.

At this time, in the terminal device, the CPU 31 of the Videotex data processing device 21 receives the data sent from the center 3 through the communication M42 in step SP9, and in the next step 5P10, the transferred data is device control data. Determine whether or not.

Here, the device control data means control data for all devices that the host computer 4 needs to control from the perspective of the host computer 4 of the center 3. There is an item for controlling the display mode when displaying image data on the monitor 22, and a second item is for controlling the main device key manual device 23 and the child device key manual device 24. Among the control items for the main unit key human power device 23, there are control items for the main unit key human power device 23.
3, and an item for controlling the output of the remote control signal RMT to the monitor 22.

On the other hand, if the data transmitted from the center 3 to the videotex data processing device 21 is not device control data, it becomes page image data extracted from the videotex database 6 of the center 3.

Therefore, the CPU 31 of the Videotex data processing device 21
When a negative result is obtained in step 5PIO, the process proceeds to step 5PII, where the video RAM 61 decodes the page image data into an image signal RGB2, and also drives the sound generator 62 to generate an audio signal AUD2.

At this time, the monitor 22 displays the image signal RGB2 on the CRT 54 in step 5P12, and also displays the audio signal A.
Sound is generated in the speaker 56 based on UD2.

On the other hand, if a positive result is obtained in step 5 PIO, the CPU 31 moves to step 5 P13 in FIG. Determine whether or not. If a positive result is obtained here, the CPU 31 executes processing corresponding to the transmitted output mode control data within the video text data processing device 21 in step 5P14. This process is actually executed by the CPU 31 reading a program corresponding to the transmitted output mode control data from the program ROM 33 and controlling the video RAM 61 and the sound generator 62.

On the other hand, if a negative result is obtained in step 5P13, the CPU 31 moves to the next step 5P15. In this step 5P15, the device control data transmitted from the center 3 is transferred to the main unit key human power device 23 (
If a negative result is obtained in the step of determining whether or not the control data is for the handset key manual device 24), this means that the contents of the device control data are provided in the videotex data processing device 21. This means that the data is control data for the printer 63 or recording device 64, and therefore the CPU 31 moves to step 5P16 and executes control operations for the printer 63 and recording device 64.

On the other hand, if a positive result is obtained in step 5P15, this means that the content of the device control data transmitted from the center 3 is control data for the main unit key human power device 23, so the CPU 31 The process moves to step 5P17, where the control data is converted into a code that can be easily processed by the CPU 41 of the A-machine key human-powered device 23, and transmitted to the CPU 41 of the main device key-powered device 23.

At this time, in step 5P18, the CPU 41 receives the transmitted control data and then in step 5P18, the CPU 41 receives the transmitted control data.
Move on to P19. This step 5P19 is a step for determining whether or not the transmitted control data is data that should be processed within the main unit key human-powered device 23 and slave device key-powered device 24. CP of
When U41 executes this judgment and obtains a positive result, the CPU
41 performs processing based on the contents of the control data in step 5P20. The processing includes display elements 46 of the main device key manual device 23 and slave device key manual device 24.
and 49, there is a process for driving the alarm elements 47 and 50. Here, the display element 49 and alarm element 50 of the handset key manual device 24 are simultaneously driven in parallel with the display element 46 and alarm element 47 of the parent device key manual device 23 under the control Ill of the CPU 41.

On the other hand, if a negative result is obtained in step 5P19, this means that the content of the transmitted device control data is not the control data of the parent unit key manual device 23 and slave unit key manual device 24 themselves. This means that the CPU 4 of the main unit key human power device 23
1 moves to step 5P21 and sends out the remote control signal RMT.

At this time, the remote control circuit 57 of the monitor 22 receives the remote control signal RMT in the next step 5P22, and depending on the content, controls the control signal C0N1 for the television signal receiving section 51 or the switch of the display device 52 and the sound device 58. circuit 53
and a control signal CON2 to 55.

The remote control circuit 57 performs reception by switching the switch circuits 53 and 55 to the television signal receiving unit 51 side by selecting the channel to be received according to the content of the remote control signal RMT. The resulting video signal is displayed on the CRT 54, and sound is generated from the speaker 56. Furthermore, the remote control circuit 57 receives the image display signal from the Videotex data processing device 21 by switching the switch circuits 53 and 55 to the Videotex data processing device 21 side using the control signal CON2 according to the content of the remote control signal RMT. VTX is C
In addition to being displayed on RT54, sound generator 6
Audio based on the output AUD 2 of AUD 2 is generated from the speaker 56 .

As described above with reference to FIG. 8, the information system of FIGS. 4 and 5 includes a videotex data processing device 21, a monitor 22, and
, the main unit key manual device 23 and the child unit key manual device 24 form a system that performs a series of sequential operations under the control of the host computer 4 of the center 3. A transmission system for page image data stored in the database 6 and a transmission system for television video signals are connected to terminal devices IA, IB, etc.
It is possible to construct an information system that combines information systems with sufficient consistency for practical purposes.

Then, when a key operation to request distribution of arbitrary information as necessary from the terminal devices IA, IB, . The input data is once sent to the host computer 4 of the center 3 through the Videotex data processing device 21, and after the host computer 4 performs data processing necessary for managing the information system, the data is processed based on the processing results. Create device control data and transfer it to Videotex data processing bag W21, monitor 2.
The entire information system is controlled as a unit by controlling the information system 2 or the system including the Videotex data processing device 21, the main unit key manual device 23, and the monitor 22.

The main device key manual device 23 and the child device key human device 24 include, for example, a keyboard having the configuration shown in FIGS. 6 and 7,
Data is input using this keyboard, and the information system responds to each input data as follows.

In FIG. 6, 71 is a monitor operation mode changeover switch for specifying the display mode of the monitor 22, including a "management information" switch 71A for displaying a page image, and a "management information" switch 71A for displaying a page image superimposed on the television image. a "screen composition" switch 71B for displaying television images, and a "television" switch 71C for displaying television images.

72 is a numeric keypad that is operated when entering numerical data;
73 represents a page data designation key that is operated to designate the page number when reading page image data stored in the Videotex database 6;
Fixed key ~K14 and free key F 1 "" F
It is composed of Ha.

74 is an entry/exit input switch, which is a "presence" switch for inputting the individual situation when a user is present, absent, or absent. 4A, an "away" switch 74B, and an "absent" switch 74C. In addition, each switch has lamps 74AX and 74BX that are lit and displayed by the center 3.
, 74CX are provided.

Reference numeral 75 denotes a specific function key, which is operated when specifying and inputting a specific function.

76 is a "Vehicle Dispatch" switch, which connects the terminal device to the vehicle dispatch center 1.
When the dispatch request is accepted at the center 3, the lamp 76A is turned on, and when the dispatch of the vehicle at the dispatch center is completed, the dispatch completion lamp 77 is turned on.

Reference numeral 78 denotes a buzzer that sounds for a predetermined period of time, for example, 3 seconds, when dispatch is completed or when emergency information is distributed.

79 is an emergency/email j switch, which is operated when transmitting a message from the terminal device to another terminal device.

Reference numeral 80 denotes an "emergency display" lamp, which is lit and displayed when emergency information is distributed from the center 3.

81 is a "TV power" switch, which is operated when the monitor 22 is turned on.

In addition, in the handset key human power device 24 shown in FIG.
is the "absence" switch, 24D is the "dispatch" switch, and switches 74A, 74B, 74C of the main unit key human power device 23
, 76.

24E is a vehicle dispatch buzzer, 24F is a vehicle dispatch completion lamp, and the buzzer 78 and indicator light 77 of the main unit key human power device F23, respectively.
corresponds to

(G3) Operation of the information system The information system with the above configuration is displayed in the following screen display mode, and the videotex database 6 of the center 3
The page image data stored in the terminals WIA, IB, etc. are displayed on the screen via the communication network 2, and the CATV line 10 is displayed on the screen via the communication network 2. The television video signal supplied from the television video signal source can be displayed on the screen at the same time.

(1) Page image screen display mode This screen display mode is intended to display the page image data stored in the Videotex database 6 of the center 3 as is on the CRT 54 of the monitor 22, and the steps shown in FIG. At 5P41, the processing program is started by operating the "management information" switch 71A (FIG. 6) of the main unit key manual device 23. At this time, the CPU 41 of the main unit key manual input device 23 sends the corresponding key manual data to the videotex data processing device 21 in the next step 5P42.

The CPU 31 of the Videotex data processing device 21 receives this key manual data in step 5P43,
After the code conversion, the process moves to the next step 5P44 and the key manual data is transmitted to the center 3.

At this time, the host computer 4 of the center 3 receives and stores the key human power data transmitted in step 5P45.

Thereafter, in step 5P46, the host computer 4 sends code data for setting the terminal device from which the request has been made to the page image display mode.

At this time, the CPU 3 of the Videotex data processing device 21
1 receives the code data in step 5P47,
After moving to the next step 5P4B and setting the videotex data processing bag 221 as a whole to page image display mode, the device control data included in the code data transmitted from the center 3 is converted into a code in step 5P49. and sends it to the main unit key human power device 23.

At this time, the CPU 41 of the main unit key manual device 23 receives the device control data in step 5P50, and sends out a remote control signal RMT for controlling the monitor 22 to the page image display mode F.

The remote control circuit 57 of the monitor 22 receives this remote control signal R in step 5P51.
By receiving MT and switching the switch circuits 53 and 55 to the videotex data processing device 21 side, the page image display mode is set.

When the "management information" switch 71A of the main unit key manual device 23 is operated in this way, the host computer 4 sets the videotex data processing device 21 and monitor 22 of the terminal device from which the request has been made to the page image display mode. do. In this state, the operator specifies and inputs the number of page image data to be retrieved from the Videotex database 6 by selectively operating the numeric keypad 72 or the key switches 73 and 75. At this time, the CPU 41 of the main unit key human power device 23 sends the corresponding key human power data to the Videotex data processing device 21 in the next step 5P53, and the CPU 31 receives the key human power data in step 5P54 and converts the code. After that, the process moves to the next step 5P55 and the key human power data is sent to the center 3.

The host computer 4 of the center 3 performs step 5P56.
In step 5P57, the key manual data is received and stored, and the designated page image data is retrieved from the videotex database 6 and transmitted to the terminal device.

At this time, the videotex data processing device 21 of the terminal device
The CPU 31 decodes the page image data transmitted in step 5P58, generates a display signal VTX and an audio signal AUD2, and supplies them to the monitor 22.

As a result, in step 5P59, the CRT of the monitor 22
An image corresponding to the page image data retrieved from the Videotex database 6 can be displayed on the video tex database 6.

In this way, the series of page image screen display mode programs that were started when the switch 71A was operated are completed.
In step 5P60, the operation of the host computer 4 of the center 3 and each device of the terminal device ends.

In this way, the user of the terminal device can access the main device key manually by the device 2.
By operating 3, the data stored in the Videotex database 6 can be retrieved and used as needed.

(2) Television video screen display mode When the "TV" switch 71C of the main unit key manual device 23 is operated, the information system enters the television video screen display mode program shown in FIG. In other words, the main unit key human power device 23
The CPU 41 switches the switch 7 at step 5P65.
When 1C is operated, the process moves to the next step 5P66 and the corresponding key manual data is sent to the CPU 31 of the videotex data processing device 21, and the CPU 31 proceeds to step 5P66.
67, SP6 B receives the key human data,
The code is converted and sent to the center 3. At this time, center 3
The host computer 4 receives and stores the key manual data in step 5P69, and sends out code data for setting the requested terminal device to television video display mode in step 5P70.

This code data is received by the CPU 31 of the videotex data processing device 21 in step SP71, and the CPU 31 sets the videotex data processing device 21 as a whole to the television image display mode in the subsequent step 5P72, and then moves to step 5P73. The device control data included in the transmitted code data is converted into a code and sent to the main unit key human power device 23.

At this time, the CPU 41 of the main unit key manual device 23 receives the device control data in step SP74 and generates a remote control signal RMT that causes the monitor 22 to enter the television image display mode. The remote control circuit 57 receives this remote control signal RMT in step 5P75, switches the switch circuits 53 and 55 to the television signal receiving section 51 side, and thus sets the monitor 22 to the television image display mode.

Next, the user presses the numeric keypad 72 in step 5P76.
(FIG. 6) to select the channel to be received, the CPU 41 of the main unit key manual device 23 performs step 5.
In step P77, a remote control signal RMT is generated to select the specified channel, and in step 5P78, the remote control circuit 57 controls the television signal receiving section 51 to receive the television broadcast of the channel, and thus the CRT 54 A television image screen is displayed above.

On the other hand, the CPU 41 of the main unit key human power device 23 performs step 5.
After sending a channel selection signal to the monitor 22 in P77, the process moves to step 5P79, and key manual data corresponding to the designated channel is sent to the videotex data processing device 21.

Accordingly, the CP of the Videotex data processing device 21
U31 receives the key manual data in steps 5P80 and 5P81, converts the code, and sends it to the center 3.

At this time, the host computer 4 of the center 3 performs step 5.
After receiving and storing the key manual data in P82, the process moves to the next step 5P83. This step SP83 is
In the step of determining whether or not the page image data corresponding to the channel specified in the videotex database 6 is stored, if the stored data is not stored, the host computer 4 obtains a negative result in step 5P83 and does not perform any operations. Terminates the program without performing any processing.

As a result, the "TV" switch 7 of the main unit key human power device 23
The television video screen display program started by the operation of 1C ends, and the center 3 and each device of the terminal device from which the request was made completes the processing steps in step 5P84, and thus the main unit key human power device 23 A television image screen generated by key operations on the keyboard will be displayed on the monitor 22 under the control of the host computer 4 of the center 3.

(3) Screen composite display mode The screen composite display program is performed at step 5P91 in Figure 3.
The process starts by operating the "screen composition" switch 71B of the main unit key manual device 23 at . At this time, the CPU 41 of the main unit key human power device 23 performs step 5P9.
2, the corresponding key manual data is sent to the videotex data processing device 21, and the CPU 31 performs step 5P.
At 93.5P94.5P95, this key manual data is received, code converted, and received and stored in the host computer 4 of the center 3.

The host computer 4 of the center 3 continues in step 5P9.
In step 6, code data for setting the terminal device to superimpose display mode is sent.

This code data is received by the CPU 31 of the videotex data processing device 21 in step 5P97, and after setting the videotex data processing device 21 in the superimposed display mode in the subsequent step 5P98, the process moves to step 5P99 to read the device control data. The code is converted and sent to the main unit key manual device 23.

The CPU 41 of the main unit key human power device 23 performs the next step 5.
In step P100, the transmitted device control data is received and a remote control signal RMT is generated to cause the monitor 22 to enter the superimposed display mode, and in the next step 5P101, the remote control circuit 57 receives this remote control signal RMT. By controlling the switch circuits 53 and 55 to superimpose display mode, the CRT
54, on which a display screen can be obtained by superimposing the display signal VTX given from the videotex data processing device 21 on the television video signal given from the television signal receiving section 51. Set the monitor 22 to display mode.

In this state, when the user specifies the channel of the broadcast wave to be received in the television signal receiving section 51 using the numeric keypad 72 of the main unit key manual device 23 in step 5 PIO2, the CPU 4 of the main unit key manual device 23
1 is a remote control signal RM that causes the channel specified in the next step 5P103 to be selected.
Generate T. At this time, in step 5P104, the remote control circuit 57 of the monitor 22 controls the television signal receiving section 51 to receive the television broadcast of the designated channel and supply it to the CRT 54 through the switch circuit 53. Become.

On the other hand, when the user inputs the number of the page image data to be displayed using the numeric keypad 72 and key switches 73 and 75 of the main unit key manual device 23 in step 5P105,
a, a key The CPU 41 of the human-powered device 23 executes the next step 5.
At P106, the corresponding key manual data is sent to the videotex data processing device 21, and after the CPtJ31 converts the reception code of this key manual data at step 5P107, it is sent to the center 3 at the next step 5P108.

As a result, in the subsequent step 5P109, the host computer 4 of the center 3 receives and stores the transmitted key human power data, and then in the subsequent step 5PIIO reads the designated page image data from the videotex database 6 and transmits it to the terminal device. do.

At this time, the videotex data processing device 21 of the terminal device
The CPU 31 decodes the page image data in step 5PIII, and outputs the display signal VTX and audio signal AU.
D2 is supplied to the monitor 22. The resulting step 5
At P112, the monitor 22 superimposes the page image data transmitted from the center 3 onto the television video signal received by the television signal receiving section 51 and displays the superimposed page image data on the screen.

Thus, the screen composite display processing program ends, and the center 3 and each device of the terminal device that issued the request ends all processing in step 5P113. As a result, a superimposed screen is obtained on the CRT 54 of the monitor 22.

(4) Automatic screen composition display mode This display mode is selected by the user of the terminal device IA, IB, etc. as described above regarding steps 5P65 to 5P83 in FIG. In this case, page image information considered necessary on the center 3 side is automatically superimposed on the television image displayed on the monitor 22. For example, when a weather information image is displayed by satellite broadcasting as a television image, it is used to superimpose explanations necessary for viewing the weather information image, such as a weather overview.

That is, when an affirmative result is obtained as a result of determining whether or not the page image data corresponding to the channel specified by the main unit key manual device 23 exists in the Videotex database 6 in step 5P83 of FIG. The host computer 4 proceeds to step 5P120 and sends code data for setting the requested terminal device to superimpose display mode.

At this time, the CPU 31 of the videotex data processing device 21 of the terminal device receives the code data in step 5P121, moves to step 5P122, sets the videotex data processing device 21 to superimpose display mode, and then continues. In step 5P123, the device control data included in the transmitted code data is converted into a code and sent to the main unit key manual device 23.

At this time, the CPU 41 of the main unit key human power device 23 receives the device control data in step 5P124 and generates a remote control signal RMT that causes the monitor 22 to enter the superimposed display mode. The remote control circuit 57 of the monitor 22 receives this remote control signal RM in the following step 5P125.
T is received, thereby setting the monitor 22 to superimpose display mode. Thus, the videotex data processing device 21 and monitor 22 are set to the superimposed display mode.

The host computer 4 of the center 3 performs step 5 described above.
When a predetermined time has elapsed after sending out the code data in P120, in step 5P126 the page image data corresponding to the channel specified in step 5P76 is retrieved from the videotex database 6 and transmitted to the terminal device.

At this time, the videotex data processing device 21 of the terminal device
The CPU 31 decodes the page image data transmitted in step 5P127 and generates a display signal VTX.
, generates an audio signal AUD2 and supplies it to the monitor 22. As a result, the monitor 22 checks the video tex database 6 of the center 3 for the television image received by the television signal receiving section 51 on the CRT 54 based on the signal supplied in step 5P128.
It is possible to superimpose a page image based on page image data prepared in advance.

In this way, when the user of the terminal device receives a television video signal arbitrarily as needed, the page information deemed necessary on the center 3 side is automatically superimposed on the television video and used. In this way, the user can further understand the content of the information obtained from the television video by using the page information.

By the way, if the page image data supplied from the center 3 side is expressed in this way by superimposing it on the television image, it may become difficult to understand depending on the situation. It is desirable that the user be able to switch to either the television video or the page image according to his/her selection.

In this case, the user selects the "management information" switch 71A or "
All you have to do is select and operate the "screen composition" switch 71B.

At this time, the CPU 41 of the main unit key manual device 23 sends the corresponding key manual data to the Videotex data processing device 21 in step 5P130, and the CPU 41
In the next steps 5P131 and 5P132, the key manual data is received, converted into a code, and sent to the center 3.

At this time, the host computer 4 of the center 3 performs step 5.
After receiving the transmitted key manual data in step P133, the process moves to step 5P134 and sends code data for setting the terminal device in page image display mode or television video display mode.

In response to this, in the terminal device, the CPU 31 of the videotex data processing device 21 executes step 5P135.
After receiving the code data at step 5P136
In step 5P137, the videotex data processing device 21 is set to page image display mode or television video display mode, and in step 5P137, the device control data included in the transmitted code data is converted into a code and sent to the parent. It is sent to the machine key human power device 23.

In the following step 5P138, the CPU 41 receives the device control data and sends to the monitor 22 a remote control signal RMT that causes the monitor 22 to enter the page image display mode or the television video display mode.

At this time, the remote control circuit 57 of the monitor 22 receives the remote control signal RMT in step 5P139, and switches the monitor 22 to the page image display mode or the television video display mode. This allows the monitor 22 to specify and display only either the page image displayed on the superimposed screen or the television video in step 5P128 described above. Because of the automatic superimposition on the center 3 side, the CRT 5 of the monitor 22
If a problem arises with the display on the screen 4, the user can switch to an operation mode in which only either the page image or the television video is displayed, as necessary, by an operation on the user's side.

In this way, the processing programs of the center 3 and each device of the terminal device from which the request was issued are completed, and in step 5P140, the processing program of the automatic screen composition display mode is completed.

H Effects of the Invention As described above, according to the present invention, when a terminal device specifies a reception channel and receives a television video signal, the center side can provide page image data to the user as needed. By automatically transmitting the page image data from the center to the terminal device and displaying it by superimposing it on the television video signal, users can be provided with richer information. An information system that can provide information can be easily realized.

In addition, in a state where a composite screen obtained by superimposing on the monitor of the terminal device is generated using the automatic screen composite display mode, if the user wants to select and display one of them, By issuing a request to that effect from the terminal device side to the center, it is possible to respond to the request under the control of the center. (Thus, it is possible to easily realize an information system that can prevent inconveniences that may occur due to automatic screen composition from the center side.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing the main processing steps of the information system according to the present invention, FIGS. 2 and 3 are flowcharts showing the processing steps of related display modes, and FIG. 4 is a block diagram showing the overall configuration of the information system. , FIG. 5 is a block diagram showing the detailed configuration of the terminal device, FIGS. 6 and 7 are route maps showing the keyboards of the main device key manual device and slave device key device in FIG. 5, and FIG. 3 is a flowchart necessary for explaining the basic data processing procedure of the information system. LA, IB...terminal device, 2...communication network, 3...center, 4...host computer, 6...videotex Database, 7... Input device, 8... Data/video conversion device, 10... CATV line, 19.
... Vehicle dispatch center, 21 ... Videotex data processing device, 22 ... Monitor, 23 ...
. . . Master unit key manual device, 24 . . . Child unit key manual device.

Claims (2)

[Claims] (1) It is possible to supply page image information stored in a center to a plurality of terminal devices that can receive television video information, and one piece of television video information that can be received by the terminal device. When a specified input is made, the specified input data is transmitted to the center, and when page image information corresponding to the specified input data is stored in the center, the corresponding page image information is transmitted from the center to the terminal device. An information system characterized by: transmitting page image information, and superimposing and displaying the transmitted page image information on the specified input television video information in the terminal device. (2) It is possible to supply page image information stored in the center to a plurality of terminal devices that can receive television video information, and one piece of television video information that can be received by the terminal device. When a specified input is made, the specified input data is transmitted to the center, and when page image information corresponding to the specified input data is stored in the center, the corresponding page image information is transmitted from the center to the terminal device. The transmitted page image information is superimposed and displayed on the specified input television video in the terminal device, and in the superimposed display mode, the terminal device displays the television video display mode or the page image information. An image display mode is selected and designated, and the selection designation input data is transmitted to the center, and the center responds to the selection designation input data to change the terminal device from the superimpose display mode to the television video display. An information system characterized by switching to a mode or a page image display mode.