JPS62177667A - Information system - Google Patents

Abstract

PURPOSE:To attain the change of information that can be read out by each free key by registering again conversion code data inputted through an input means for registered code data in a register mode of conversion code on a conversion table memory means. CONSTITUTION:The information stored in a videotex data base 6 of a center 3 can be designate and read out through plural terminal equipments 1A, 1B.... Each of these terminal equipments contains a free key to designate the informa tion to be read out, a conversion table memory means which converts the data supplied by said free key into codes and obtains the code data corresponding to the information, and a registered code data input means which can register the conversion code data corresponding to the free key on the conversion table memory means. Then each terminal equipment registers again the registered code data supplied from the registered code data memory means in the register mode for conversion code and therefore can change the information that can be read out by each free key.

Description

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

A. Industrial field of application B. Outline of the invention C. Conventional technology Problems to be solved by the invention E. Means for solving the problems (Figs. 1 to 3 and 7) F. Effects (1. 3 and 7) Example G (G1) Configuration of the pleasure register (FIGS. 6 to 9) (G
2) Basic data processing procedure (Figure 10) (G3) Configuration and operation for reading information [1] Fixed key and free key functions [2] Registration of free key conversion code (1) From the center Registration (2) Registration in terminal device (3) Re-registration from free key [3] Reading page image data G4) Other embodiments H Effects of the invention A Industrial field of application The present invention relates to information systems. This is particularly suitable for application in cases where internal information is supplied from a center as necessary to a large number of terminal devices scattered within a company, such as in one company.

B. Summary of the Invention The present invention provides an information system in which information stored in a Videotex database provided at a center can be specified and read out by a plurality of terminal devices, in which each terminal device is provided with a free key. By converting the code using a conversion table storage means that can re-register key input data from free keys and supplying it to the Videotex database as information specification data, a large number of keys can be input as needed with a small number of free keys. This allows information to be read out.

C. Conventional technology Conventionally, this type of information system was designed to supply in-house information stored in a center to the corresponding in-house information when a request was made from a terminal device installed in each department within the company. An information system is proposed.

Problems to be solved by the invention In this type of information system, as the scale increases, the types and amounts of in-house information stored in the center become enormous, and the types and amounts of departments that use this information also increase. It is inevitable that the number will increase. This means that users with various positions are now using information from the center, and when a request is issued from each terminal device, the information that should be provided in response to the request is It is necessary to accurately manage quality and employment.

In other words, regarding the type of information, for example, human resources information needs to be made freely readable by users in a specific human resources management department as needed, while it is necessary for users in other departments to be able to read it freely. Personnel information shall not be provided upon request.

Regarding financial information, for example, from the perspective of trade secrets, even if the user is in the finance department, the quality of the financial information to be provided must be considered according to the user's duties. Financial information with the highest level of confidentiality (represented by grade G1) needs to be made freely available only to executives and finance managers as needed, while managers of other departments It must not be provided to users working in the finance department or below the finance department manager or below.

In addition, financial information with a medium level of confidentiality (indicated by grade G2) can be freely provided to, for example, the section manager of the finance department and the managers of other departments (including executives and finance managers) as necessary. However, it is necessary to ensure that the information is not supplied to section managers of other departments. Furthermore, financial information with the lowest level of treasure dust (represented by grade G3) needs to be made freely available to section managers of other departments as needed.

Furthermore, information that costs a huge amount of money to obtain needs to be managed differently from other information in order to be used effectively.

In this way, the center can restrict the provision of information to users, taking into account the quality, i.e., grade, type, amount, etc., of the information that should be provided to the requested user, depending on the extent to which it is actually necessary to perform the job. It is necessary to do so. However, if the method of information management at the center is decided solely from the perspective of restricting the provision of information, there is a risk that the information at the center will be difficult to use from the perspective of terminal device users. For example, the effective use of information may be hindered.

The present invention has been made in consideration of the above points, and is based on the information that should be provided to the user according to the nature of the information, such as grade, type, amount, etc., while responding to the user's requests as much as possible. This paper attempts to propose an information system that makes it easier to manage information actually provided to users.

E Means for Solving the Problem In order to solve this problem, in the present invention, the center 3
The information stored in the Videotex database 6 provided at the terminal device IA, IB...
Each terminal bag ff1A, IB...... has free keys F, ~F14 for specifying information to be read, and this free key F.
a conversion table storage means 36 for code-converting key input data of keys 1 to F+4 to obtain code data corresponding to information; and a registration code capable of registering conversion code data corresponding to free keys F+ to FI4 in the conversion table storage means. data input means 72, each terminal device IA, IB...
... is the registration code data input by the registration code data input means 72 in the conversion code registration mode,
By re-registering in the conversion table storage means 36, the information that can be read by each of the free keys F1 to F14 can be changed.

When the F-action free keys F, -F14 are operated, the key input data is converted into a code by the conversion table storage means 36 and transmitted to the center 3. The center 3 reads the information corresponding to the transmitted code data and sends it to the terminal device I.
Send it back to A, IB...

Each terminal device IA, IB..., in the conversion code registration mode, replaces the code data stored in the conversion table storage means 36 with the conversion code data input from the registered code data input means 72. By re-registering, the conversion table storage means 3G can be re-registered.

In this way, information that can be read from the Videotex database 6 by each free key F, ~Fla is transmitted to the terminal device IA.
, IB .

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 6 shows the information system as a whole, and includes a large number of terminal devices IA, IB, etc. installed in designated departments within the company.
are each connected to a center 3 via a communication network 2. 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 the terminal devices IA, 1B, . . .
For example, ... is set up 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 a request is issued from . . . , the terminal device IA, IB . Supply to... In addition to this, the central processing unit 5 includes terminal devices IA, 1B, . . .
Even if there is no request from ..., the input device 7 of the center 3
Predetermined page image data can be supplied to all or some of the terminal devices IA, IB, etc. as necessary based on the data input from the terminal device, thereby facilitating the distribution of emergency information. It is designed so that it can be done.

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 includes general broadcasts received by a television antenna 15, satellite 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).
It receives the television video signal TVINo obtained from the above, and supplies it to the terminal devices IA, 1B, . . . and the television receivers 1)A, 1)B, . Here, the television receivers 1) A, IIB, etc. are installed, for example, in specific workplaces, employee cafeterias, lobbies, etc., and are designed to provide television image information for the general company. There is.

In addition to the above configuration, the information system of 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 y42 includes terminal devices IA, 1B...
Input devices 12A, 12B disposed at predetermined positions other than
... are combined so that, for example, code data specifying emergency information can be input.

As shown in FIG. 7, the terminal devices IA, IB, .

The Videotex data processing device 21 has a central processing unit (CPU) 31 configured as a microcomputer,
The lotus 32 is connected to the communication network 2 through 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 input device 23 through an input/output device 37. The main unit key input device 23 is a CPU 41 with a one-chip microcomputer configuration, and a program RoM4.
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, the CPU 41 of the main unit key input device 23 receives lighting command data or alarm command data from the cPU 31 through the input/output device 37.44, and operates the display element 46 made of, for example, an LED, or the alarm element 47 made of, for example, a buzzer.

The handset key input device 24 includes a key switch 48 whose opening and closing are controlled by operating the key top, and input data thereof is supplied to the CPU 41 via the input/output device 44 of the parent key input 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-l relationship with respect to the "vehicle dispatch" switch), and the key input data similar to that obtained 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 key input device 24 includes the parent key input 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 master key input 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 signal is displayed on the CRT 54. do.

Further, 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 input device 23, and provides a corresponding control signal CON1 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 ROB 1 are supplied to the CRT 54, and the audio signal AUD 1 is supplied to the speaker 56.

Here, the base unit key input device 23 allows the CPU 41 to transmit a corresponding remote control signal RMT via the input/output device 44 when the key matrix 45 is operated to select a specified channel to the television reception mode (that is, "TV" display mode). The television signal receiving unit 51
to the tuned reception state. Further, the remote control circuit 57 is connected to the key matrix 4 of the main unit key input 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 input device 23 is designated to superimpose reception mode (that is, "screen composition" display mode), the remote control circuit 57 controls the television signal reception unit 51 by control signals C0N1 and CON2. The television video signal RGB 1 and the audio signal AUD 1 are connected to a switch circuit 53.
and 55. At this time, the video tex deck processing device 21 alternately switches the switch circuit 53 based on the key input data input from the parent unit key input device 23 using the superimpose bit SPI included in the image display signal VTX. By doing so, a screen in which the image signal RGB 2 of the image display signal VTX is superimposed on the television video signal RGB 1 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 RGB 2 for displaying a page image on the CRT 54 and a superimpose bit SPI based on page image data received 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.

The page image data thus transmitted from the center 3 to the terminal devices LA, IB, etc. via the communication network 2 is converted into an image display signal VTX in the videotex data processing device 21. CRT54 of monitor 22
At the same time, an audio signal AUD2 is generated in the sound generator 62 each time each page image data arrives.

Note that a printer 63 and a recording device 64 are coupled to the Videotex data processing device 2I, and the data processing device 2I 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 devices IA,
The center 3 creates device control data based on requests from the IB, and uses this device control data to control the terminal devices 1A, IB, and so on.
・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. 10, the user uses the terminal device IA, IB, .
When you operate a desired key using Send.

At this time, the CPU 3 of the Videotex data processing device 21
1 takes in the code data from the main unit key input 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, the process moves to step SP6 and the key input data is sent 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 input data in step SP7, and then executes the process corresponding to the key input 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 'fLp12 in step SP9, and in the next step 5 PIO, the CPU 31 of the videotex data processing device 21 controls the device control. Determine whether it is data 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 image data is displayed on the monitor 22, and i2 has an item for controlling the main device key input device 23 and the child device key input device 24. Among the control items for the main unit key input device 23, the main unit key input device 23
, 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.

That's where the Videotex data processing bag comes in! 21 CPU31
When a negative result is obtained in step 5 PIO, the process moves to step S P 1.1 and decodes the page image data into an image signal RGB2 in the video RAM 61, and generates an audio signal AUD2 by driving the sound generator 62. .

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 5PIO, the CPU 31 moves to step 5P13 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 videotex 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 5PL3, 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 input device 23 (
If a negative result is obtained in the step of determining whether the data is control data for the handset key input 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 input device 23, so CPtJ31 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 main unit key input device 23, and the control data is converted into a code that can be easily processed by the CPU 41 of the main unit key input device 23.
The data is transmitted to the CPU 41 of.

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 input device 23 and the slave unit key input 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 input device 23 and the child device key input 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 slave key input device 24 are driven simultaneously and in parallel with the display element 46 and alarm element 47 of the master key input device 23 under the control 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 input device 23 and slave unit key input device 24 themselves. This means that the CPU 4 of the main unit key input 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 sends a control signal CON 1 to the television signal receiving section 51 according to the content thereof.
Alternatively, it supplies the control signal CON2 to the switch circuits 53 and 55 of the display device 52 and sound device 58.

In this way, the remote control circuit 57 selects the channel to be received according to the content of the remote control signal RMT, and switches the switch circuits 53 and 55 to the television signal receiving unit 51 side to receive the received 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 ATJD 2 of ATJD 2 is generated from the speaker 56 .

As described above with reference to FIG. 10, the information system of FIGS. 6 and 7 includes the videotex data processing device 21, monitor 2, and
2. The main unit key input device 23 and the slave unit key input device 24 are
By forming a system that performs a series of sequential operations under the control of the host computer 4 of the center 3, it can be used as a transmission system for page image data stored in the videotex data storage 6 of the center 3. , the television video signal transmission system is connected to the terminal devices IA, IB, etc.
・It is possible to construct an information system that is connected to have sufficient consistency for practical use.

Then, when a key operation is performed on the parent device key input device 23 or the child device key input device 24 to request distribution of arbitrary information as necessary from the terminal devices WIA, IB, etc., respectively, 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 send it to the Videotex data processing device 21 and monitor 2.
The entire information system is controlled as one by controlling the information system 2 or the system including the videotex data processing device 21, the main unit key input device 23, and the monitor 22.

The main unit key input device 23 and the slave unit key input device 24 include, for example, a keyboard having the configuration shown in FIGS. 8 and 9,
Data is input using this keyboard, and the information system responds to each input data as follows.

In FIG. 8, 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;
It consists of fixed keys ~K14 and free keys F and ~FI4.

74 is an entry/exit input switch, which is used to input the purpose status of the user when the user is present, absent, or absent.
"Present" switch 74A, "Apart" switch 74B,
``absent'' switch 74C. In addition, each switch has lamps 74AX and 74 that are lit and displayed by the center 3.
BX and 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.

Reference numeral 79 denotes an "emergency/e-mail" 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 input device 24 shown in FIG.
is the "absence" switch, 24D is the "dispatch" switch, and switches 74A, 74B, 74C of the main unit key input device 23
Corresponds to 176.

24E is a vehicle dispatch buzzer, and 24F is a vehicle dispatch completion lamp, which correspond to the buzzer 78 and indicator light 77 of the main unit key input device 23, respectively.

Reference numeral 85 denotes a "registration" switch, which is operated when registering code conversion data in the code conversion table of the RAM 36 among the page image data designation keys 73. The code converted here is the free key K.

- Represents the page number of the page image data to be read from the Videotex database 6 of the center 3 when K14 is operated, and corresponds to the page number specified by the numeric keypad 72 after operating the registration switch 85. Code data is RA as conversion code data
Registered in M36.

(G3) Configuration and operation for reading information [1] Fixed key and free key functions The information system reads page image data stored in the Videotex database 6 of the center 3 from the terminal device
A, IB... Specify by operating the fixed key of the page image data designation key 73 (FIG. 8) provided on the main unit key input device 23, ~La, or the free key FI''F14. By doing so, a read request is input.

In this embodiment, the Videotex database 6 includes:
As shown in FIG. 5, page image data DSI, DS2... forming specific information, page image data DCI, DC2... forming common information, and selectable information are displayed. Page image data DL1, DL2 to be formed
It includes...

On the other hand, the fixed keys of the terminal devices IA, IB, . can specify specific information DSL, DS2, . . . , and the second fixed key group KF2 can specify common information DCI, DC2, . Here, specific information DSL, DS2...
- is information that is relatively important for the job of the user of each terminal device,
This is something that is often read out by the terminal device.

However, in order to prevent it from being read by other terminal devices, the key code of each key in the first fixed key group of each terminal device is the specific information DSI, DS2, etc. It is fixed so that there is a one-to-one relationship with the address.

The user of each terminal device thus has access to the first set of fixed keys KF.
By operating one of the I keys, the specific information assigned to that key can be read out at any time, thereby allowing the user to reliably and quickly obtain information important to the performance of his/her duties.

On the other hand, the common information DCI, DC2...
It consists of page image data that is commonly used for multiple or all terminal devices IA, IB, etc. and is provided relatively frequently, and therefore, it is used for multiple or all terminal devices IA, IB, etc. The user of... obtains page image data common to each terminal device IA, IB... by operating the fixed keys included in the second set of fixed keys that are always in the same position. can do.

In contrast, selectable information DLI, DL2...
selects each terminal device IA, IB, etc. from a large number of information sources.
The page image data is such that the user of .
You can freely choose from among them. Which selectable information DL1, DL2, .
. . . users can freely decide within the allowable range of the center 3.

(The users of terminal devices IA, IB...)
By using the limited number of free keys F+-F+4 provided on the keyboard of the main unit key input device 23 (FIG. 8),
Selectable information DL1, DL2... that each key can read
By changing . . . as necessary, information on the number of free keys can be read out.

In addition to this configuration, specific information stored in the Videotex database 6 is DSI, DS2...
Common information DCI, DC2..., selectable information D
LI, DL2... are divided into three grades G1, G2, and G3, and each terminal device ZI
When key input data is supplied to the center 3 from A, 1B, etc., an identification signal (this is called a terminal device ID signal) for identifying each terminal device IA, IB, etc. ) is attached and transmitted to the center 3,
Based on the terminal device ID signal, the center 3 selects and returns specific information, common information, and selectable information of a predetermined grade to the terminal device that issued the read request.

Each information (DSI, DS2...), (DC1DC
Grades G1, G2, G3 of , 1B, . . . when a read request is issued for each piece of information, it is determined which grade of information is to be provided. Each piece of graded information is then input to the host computer 4 as data representing the restricted range of information provision to each terminal device, and the host computer 4 thus controls each terminal device IA, IB,
When a request to read each piece of information is issued from . . . , the grade of information to be provided can be selected.

The page image data stored in the Videotex database 6 in this manner is classified by the type of information (represented by items), and each item is classified by grade. (Thus, the range of page image data that can be supplied from the center 3 to each terminal device IA, IB, . . . can be controlled by the center 3 in terms of both the type and grade of information.

For example, the page image data of "financial status" is assigned to one of the selectable information DLI, DL2, . . . and has a restriction condition that it can be read by all terminal devices. And for read requests from terminal devices of executives and finance managers, the highest grade is G1.
Provide page image data of 1. In addition, page image data of medium grade G2 is provided in response to read requests from terminal devices of managers of other departments and finance managers, and furthermore, in response to read requests from terminal devices of section managers of other departments, page image data of medium grade G2 is provided. Page image data of the lowest grade G3 is provided.

[2] Registration of free key conversion code When the free keys F, ~F14 included in the free key group KF3 of each terminal device ff1A, IB, old, etc. are operated, the selectable information DL1, DL2 of the Videotex database 6 is
The code data for selecting one of... is the code data for the center 3 and each terminal device ff1A.

Each terminal device IA based on a request from IB...
, 1B...Videotex data processing bag W2
The code conversion table is registered in the code conversion table formed in the RAM 36 included in the code conversion table 1.

(1) Registration from the center The host computer 4 of the center 3 receives each terminal device IA,
IB... Videotex data processing device 21
When the power is turned on, selectable information D from the center 3 side
Codes corresponding to information considered necessary to be provided from the center 3 side among LI, DL2, etc. are stored in the RAM 36 of the Videotex data processing device 21 according to the processing procedure shown in FIG. be registered.

That is, when the videotex data processing device 21 is powered on in step 5P41, its CPU 31
sends a carrier to the center 3 in step 5P42. At this time, the host computer 4 of the center 3 receives the transmitted carrier in step 5P43, and then proceeds to step 5P44 to issue an ID request.

In response to this ID request, Videotex data processing bag W2
1(7) The CPU 31 sends the terminal device ID data to the center 3 in step 5P45.

After receiving this terminal device ID data in step 5P46, the host computer 4 receives the terminal device ID data in step 5P47.
The process moves on to verify the ID data, and in the following step 5P48, code data is sent to set the powered-on terminal device in page image display mode.

At this time, after receiving the code data in step 5P49, the CPU 31 of the videotex data processing device 21 of the terminal device sets the videotex data processing device 21 to the page image display mode in step 5P50, and in the subsequent step SP51, the CPU 31 of the videotex data processing device 21 receives the code data. The device control data contained in the key input device 23 is sent to the main unit key input device 23.

The CPU 41 of the main unit key input device 23 performs step 5P5.
2, a remote control signal RMT which receives the transmitted device control data and sets the monitor 22 to the page image display mode is ordered. The remote control circuit 57 of the monitor 22 receives this remote control signal R in step 5P53.
Upon receiving MT, the monitor 22 is set to page image display mode. Thus, the entire terminal device is set to the page image display mode.

In this state, when a predetermined period of time has elapsed after sending the code data in step 5P48, the host computer 4 of the center 3 moves to step 5P54 and presses the free key provided on the main key input device 23 of the terminal device. A conversion code is assigned to some or all of F, to F14, and code data corresponding to the assigned conversion code is sent to the terminal device.

At this time, the Videotex data processing device 210CPU3
1 receives the transmitted code data and registers it in the RAM 36 in step SP55. As a result, in step 5P56, the registration program from the center 3 of the free key conversion code for each device of the center 3 and the terminal device is completed, and when the free keys F1 to F I 4 of the terminal device are operated, the center 3 A state is obtained in which the code data to be transmitted from the center 3 is registered in the RAM 36, and when the free key in which the conversion code is registered is operated, the page image data of the predetermined item and grade is transmitted on the center 3 side. This means that it can be read out to the terminal device.

(2) Registration in terminal device The conversion code is registered in the code conversion table formed in the RAM 36 of the terminal device according to the processing procedure shown in FIG. 1 based on the request of the terminal device itself.

First, the user of the terminal device presses the "registration" switch 85 (
(Fig. 8). At this time, the CPU 41 of the main unit key input device 23 sends out the corresponding key input data in step 5P62, and
The CPU 31 converts the key input data into a code and sends it to the center 3 in steps 5P63 and 5P64.

The host computer 4 of the center 3 receives and stores the key input data in step 5P65, and then proceeds to step 5P.
At step 66, code data for setting the terminal device to page image display mode is sent back.

In response to this, the Videotex data processing device 21
After receiving the transmitted code data in step SP6''l, the PU31 sets the videotex data processing device 21 to the page image display mode in step 5P68, and in the subsequent step 5P69, displays the code data included in the code data. Converts device control data into code and sends it.

The CPU 41 of the main unit key input device 23 performs step 5P7.
In step SP71, the remote control circuit 57 receives this device control data and generates a remote control signal RMT that causes the monitor 22 to enter the page image display mode. Set. Thus, the entire terminal device is set to the page image display mode.

The host computer 4 of the center 3 performs the step S described above.
After a predetermined period of time has elapsed after sending the code data in P66, the free key Fl""FI is pressed in step 5P72.
The page image data representing the registered page No. 4 is read out from the Videotex database 6 and sent out, and in response to this, the CPU 31 of the Videotex data processing device 21 of the terminal device processes the transmitted page image data in step 5P73. It is decoded to generate a display signal VTX and an audio signal AUD2, which are sent to the monitor 22.

As a result, a free key registration page is displayed on the monitor 22 in step 5P74.

The free key registration page displayed on the monitor 22 displays the selectable information DL1, DL2... (Fig. 5) that can be specified when the free keys F1 to FI4 are operated, for example, in a list. This allows the user to visually confirm which of the free keys F1 to Fz have already registered page numbers to be stored and which have not.

At this stage, registration of the conversion code for the free key FI-FI4 is performed not only in the registration mode from the center 3, but also in accordance with the request of the terminal device itself as described below, as described above with reference to FIG. There is a registration mode based on this, in which a conversion code is registered from the terminal device side for a free key that has not yet been registered.

That is, in step 5P75, the user of the terminal device selects one of the free keys F, ~FI4 that is not registered (this is read because the corresponding field on the free key registration page displayed on the monitor 22 is blank). obtain)
After operating one of the keyswitches, the desired page number to be read is input using the ten key switch 72. At this time, the CPU 41 of the main unit key input device 23:
In step 5P76, the corresponding key input data is sent to the CPU 31 of the videotex data processing device 21.
After converting the code in steps 5P77 and 5P78, the data is sent to the center 3.

The host computer 4 of the center 3 performs step 5P79.
After receiving and storing the key input data, the process moves to step 5P80, where page image data is created by entering the desired page number entered in the field of the operated key on the free key registration page. is sent to the terminal device.

CPU of the videotex data processing device 21 of the terminal device
31 decodes the page image data transmitted in step SP81, generates a display signal VTX and an audio signal AUD2, and supplies them to the monitor 22, and then proceeds to step 5P.
At 82, this is displayed on the monitor 22.

The processing procedure of steps 5P75 to 5P82 is repeated in step 5P83 each time the user wishes to input a conversion code for another free key.

When the user has finished inputting the conversion code, the user moves to step 5P84 and operates the registration switch 85 again.

At this time, the CPU 41 of the main unit key input device 23 converts it into the corresponding code data in step 5P85, and then the CPU 31 of the videotex data processing device 21 converts the code in steps 5P86 and 5P87 and sends it to the center 3. The host computer 4 of No. 3 receives and stores this in step 5P88.

Next, the host computer 4 moves to step 5P89 and determines whether or not the desired page number newly entered in the free key registration page can be registered as is (in other words, whether it is permissible). As mentioned above with respect to the figure, if there is data input by the user that deviates from the limit range predetermined by the center 3, the column corresponding to the free key where the unacceptable data was input will be displayed, for example, with the Create registration page image data with the message "Not possible" and send it to the terminal device.

At this time, the terminal device displays the registered page image data transmitted in steps 5P91 and 5P92 on the monitor 22.
Display above.

Along with this, the host computer 4 sends the registered page image data in step 5P90, and then in step 5P
93, code data for loading the registration page image data into the RAM 36 of the videotex data processing device 21 of the terminal device is sent, and the CPU 31 of the terminal device transmits the code transmitted in step 5P94. received, and in the following step 5P95, R
Store in the AM36 code conversion table.

The program is thus terminated, and the processing procedure for registering the conversion code of the free key in the terminal device is terminated in step 5P96.

In this way, on the terminal devices IA, IB..., the user does not exceed the limit range allowable by the center 3 for free keys F, ~FI4, for which conversion codes have not yet been registered. On the condition that the selectable information DLI, DL2, etc. of the Videotex database 6
...... (Figure 5) Code data for specifying R
Can be registered with AM36.

Such registration can be performed by the user of the terminal as necessary, so even if the information is the same, the free keys F1 to
The position of F+4 according to the user's preference (for example, the left side,
(center, right side, upper side, lower side, etc.), thus making the keyboard of the main unit key input device 23 even easier to use.

(3) Re-registration from the free key As described above with respect to Figures 3 and 1, the free key F
, ~F14, after registration of the conversion code is once completed from the center 3 or based on a request from the terminal device itself, the registered conversion code can be re-registered according to the procedure shown in FIG.

That is, as shown in steps 5PIOI to 5P1)4 in FIG. 2, a state in which the free key registration page is displayed on the monitor 22 of the terminal device is obtained in exactly the same manner as described above for steps 5P61 to 5P74 in FIG. After that, the user of the terminal device operates the free key corresponding to the field to be re-registered in the free key registration page image displayed on the monitor in step 5P1)5.

The key input data input at this time is
) 6.5P1) 7.5P1) 8.5P1) 9 to go up to the center 3 and access the host computer 4 of the center 3.
After receiving and storing the input key input data in step 5P1)9, it is determined in step 5P120 whether or not the desired page number re-entered is acceptable.

As a result, if the input page number exceeds the permissible limit range set in the center 3, the host computer 4 moves to the next step 5P121, and displays "Unable to register" in the field of the re-entered free key. Create registration page image data with the message written and send it to the terminal device.

At this time, the CPU 3 of the Videotex data processing device 21
1 decodes the transmitted page image data in step 5P122 to generate a display signal VTX and audio signal AUD2, which are displayed on the monitor 22 in step 5P123.

The processing program is thus ended, and each device of the center 3 and the terminal device ends the re-registration processing procedure in step 5P124.

Selectable information DLI, DL2, etc. for which a free key that was once registered in this way was attempted to be re-registered.
If the designated data is unacceptable from the center 3's perspective, the re-registration procedure is terminated without allowing registration.

On the other hand, if a positive result is obtained in step 5P120 described above, the host computer 4 moves to the next step 5P125.

In this step, the registration page screen data with the desired page number rewritten in the field of the re-entered free key is sent to the terminal device, and the terminal device is sent to the terminal device in the following step 5P126.
The registered page image data transmitted in 5P127 is displayed on the monitor 22.

This state means that the host computer 4 has accepted the data input by the user of the terminal device. At this time, the user operates the "registration" switch 85 again in step 5P128.

The input code data input at this time is
129.5P130.5P131.5Up to the center 3 at PI32, the host computer 4 receives and stores the key input data at step 5P132, moves to step 5P133, and executes the above-mentioned step 5PL.
Code data that causes the registered page image data created in step 24 to be loaded into the RAM 36 of the terminal device is sent. At this time, C of the Videotex data processing device 21
The PU31 stores the transmitted code data in the conversion table of the RAM 36 in steps 5P134 and 5P135, and thus ends the re-registration processing procedure in step 5P136.

In this way, the user can re-register the conversion code data once registered in the RAM 36 within the limit permitted by the center 3.

[3] Reading of page image data Specific information DSI, DS2, etc. stored in the videotex database 6, common information DC1, DC
2..., selectable information DLI, DL2...
... is the corresponding fixed key K 1 ” K I'4,
It can be read by operating the free keys F1 to F14 in step 5P141 of FIG.

At this time, the CPU 41 of the main unit key input device 23 sends the corresponding key input data in the next step 5P142, and after receiving the key input data in step 5P143, the CPU 31 of the videotex data processing device 21 sends out the corresponding key input data in step 5P144. Converts the received key input data into code. Fixed key Kl %K here
14 is executed using a code conversion table formed in the ROM 33, whereas conversion of key input data for free keys F1 to F+4 is performed using the code conversion table formed in the ROM 33.
This is executed using the code conversion table formed in 6.

The CPU 31 of the Videotex data processing device 21 adds a terminal device ID signal to the key input data obtained by code conversion in the next step 5P145 and sends it to the center 3, and the host computer 4 of the center 3 transmits it in step SP146. Receive key input data that has been input,
After storing, the process moves to the next step 5P147.

In this step 5P147, the host computer sends code data for setting the terminal device to the page image display mode, and in response to this, the CPU 31 of the videotex data processing device 21 executes the code data in step 5P148.5.
After setting the videotex data processing device 21 to the page image display mode based on the code data sent back in P149.5P150, the device control data included in the code data is converted into a code and the main unit key input device 23 give to

The CPU 41 of the main unit key input device 23 uses the step SPI
In step 5P15, a remote control signal RMT is generated to cause the monitor 22 to enter the page image display mode based on the device control data, and step 5P15
2, the remote control circuit 57 sets the monitor 22 to the page image display mode using the remote control signal RMT.

On the other hand, after sending the code data in step 5P147 described above, the host computer 4 of the center 3 moves to step 5P153 and enters the ID of the terminal device that made the request.
The grade of information to be supplied to the terminal device is specified in accordance with the signal, and in the following step 5P154, page image data of the specified grade is transmitted to the terminal device.

At this time, the CPU 3 of the Videotex data processing device 21
1 decodes the page image data transmitted in step 5P155 and outputs a display signal VTX and an audio signal A.
UD2 is generated and supplied to the monitor 22, and the monitor 22 displays it on the screen in step 5PI56.

The series of programs is thus completed, and step 5P15
At step 7, the page image data reading processing procedure for each device of the center 3 and the terminal device is completed.

As described above, when the fixed key % is operated, the CPU 31 of the Videotex data processing device 21 is RO
After code conversion using the code conversion table fixedly formed in M33, specific information DS1゜DS2... or common information DCI, DC2... of the Videotex database 6 is converted. Read page image data.

On the other hand, when free keys F1 to F14 are operated,
The CPU 31 of the Videotex data processing device 21 is an RA
By converting the code using the code conversion table formed in M36, the Videotex database 6
One of the selectable information 1DL1, DL2, . . . can be specified and read. Therefore, RAM
No. 36 code conversion table is used to register or re-register a selected code in response to a request from the user of the terminal device by operating the "registration" switch 85 of the main unit key input device 23 on the terminal device side. By being able to do this, selectable information DLI, DL2, . . . for a large number of items can be read out using a small number of free keys.

In this way, when the code selected and specified according to the user's needs is registered in the RAM 36, the center 3 is able to control the registration allowable range, so that information related to trade secrets and expensive information can be saved. can be managed appropriately.

(G4) Other embodiments In the embodiment of FIG. 1, free keys F1 to F+4 are used.
To register conversion codes for multiple keys in the RAM 36, as described above in steps 5P75 to 5P83, after sequentially inputting the desired page numbers for the keys to be registered, proceed to steps 5P84 to 5P9.
“Register” all free keys at once as shown in 5.
The case has been described in which the registration operation is entered by operating the switch 85, but instead of this, the "registration" switch 85 is operated to register each time a desired page number is input for one free key. The same effect as in the case described above can be obtained even in this manner.

H Effects of the Invention As described above, according to the present invention, free keys are provided in the page image data specification key, and code conversion is performed using a conversion table that allows key input data for each free key to be registered from the terminal device side as necessary. By transmitting the data to the videotex database at the center after the data is read, an information system that can read a large amount of information using a small number of free keys can be easily obtained. Therefore, when registering a conversion code, the center side can control the range of information that is allowed to be read, allowing appropriate information to be supplied to each terminal device in terms of trade secrets, information value, etc. I can do it.

[Brief explanation of drawings]

1 to 3 are flowcharts showing the procedure for registering a free key conversion code in the information system according to the present invention, FIG. 4 is a flowchart showing the procedure for reading page image data using free keys and fixed keys, and FIG. The figure is a route map showing the relationship between free keys and fixed keys and information stored in the Videotex database 6, and FIG. 6 is a block diagram showing the overall configuration of the information system according to the present invention.
FIG. 7 is a block diagram showing the detailed configuration of the terminal device, FIGS. 8 and 9 are route maps showing the keyboards of the main unit key input device 23 and slave unit key input device 24 in FIG. 7, and FIG.
The figure is a flowchart showing the basic data processing procedure in the information system. IA, IB...terminal device, 2...communication network, 3...center, 4...host computer, 6...videotex Database, 7... Input device, 8... Data/video conversion device, lO... CATV line, 19.
... Vehicle dispatch center, 21 ... Videotex data processing device, 22 ... Monitor, 23 ...
. . . Master device key input device, 24 . . . Child device key input device.

Claims (4)

[Claims] (1) The information stored in the Videotex database provided at the center can be specified and read by a plurality of terminal devices, and each of the terminal devices has the ability to specify the information to be read. a free key; a conversion table storage means for code-converting key input data of the free key to obtain code data corresponding to the information;
and a registration code data input means capable of registering conversion code data corresponding to the free key in the conversion table storage means, and each of the terminal devices has a registration code data input means capable of registering conversion code data corresponding to the free key in the conversion table storage means; An information system characterized in that information that can be read by each of the free keys can be changed by re-registering input conversion code data in the conversion table storage means. (2) In the conversion code registration mode, the terminal device attaches a terminal device ID signal to the code data obtained in response to the free key and transmits it to the center, and the center receives the transmitted code data. Based on the code data and the terminal device ID signal, it is determined whether or not the code data can be registered in the conversion table storage means, and based on the result of this determination, the registration in the conversion table storage means in the terminal device is determined. The information system according to claim 1, wherein the information system is configured to control availability. (3) The terminal device has a fixed key, and the code data for reading highly confidential specific information assigned to the terminal device by the fixed key is converted as data that cannot be changed by registration. The information system according to claim 1, wherein the information system is fixedly stored in table storage means. (4) In the information read mode, each of the terminal devices attaches a terminal device ID signal to the code data output from the conversion table storage means and transmits it to the center, and the center receives the terminal device ID signal and transmits it to the center. 2. The information system according to claim 1, wherein the grade of information to be sent from the Videotex database is specified based on the videotex database.