JPH079639B2 - Data processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing unit capable of mutually transmitting data, and in particular, a computer device of a type generally called a personal computer or the like is connected to each other to store data. It is suitable for use in exchanges.

[Conventional technology]

2. Description of the Related Art Conventionally, there is a so-called electronic mail function or electronic bulletin board function as a data communication technology in data exchange between personal computers.

The e-mail function means that when data is transmitted from one personal computer connected to the host computer to another personal computer, the certain personal computer attaches information specifying the destination personal computer to the data to be transmitted. Send to host computer. The host computer stores and holds this. Other parsol computers access the host computer as needed to receive information addressed to it. In the case of an electronic bulletin board, this destination information does not exist, and the personal computer connected to the host computer can receive all of it as necessary. In the case where a plurality of personal computers are connected by a local area network or the like and the electronic mail function is used, mail information from a certain personal computer is directly sent to another designated personal computer. In the case of using the electronic bulletin board function, information from a certain personal computer is transmitted to all other connected personal computers.

References for communication technology in personal computers are disclosed in JP-A-60-171529 and JP-A-60-191326.
There is an issue.

[Problems to be solved by the invention]

The conventional one is useful in that the direction of communication is bidirectional. However, the simultaneity of data is not taken into consideration, and therefore, for a certain common data, an editing operation is mutually performed or considered, such as a proofreading meeting of a manuscript or a design drawing. It was not suitable for applications such as examination.

That is, in the conventional one using each of the above-mentioned functions, for example, in the case of proofreading or checking one proposal data, the following procedure is taken. First,
This draft data is transmitted to the other party using the electronic mail function described above. The receiving side performs processing such as correction, insertion, and deletion on the draft text data and sends it back to the sending side using the electronic mail function.
The transmitted data is displayed on the display screen of the display device provided in the data processing unit, and the operator can confirm the content of the data. The above operation is repeated until both parties are satisfied.

The above is effective in that both parties performing data communication can mutually process data while mutually confirming the content of communication, but after sending data, the other party Only after the editing operation is performed and the other party sends this data and receives this data, the other party cannot confirm the correction and the like added to the data, resulting in a waiting time. Further, the received data is checked for the correction location of the other party, corrected and the like, and then sent to the other party. Of course, the waiting time of the other party is provided during this period. Therefore, this type of conventional device becomes non-simultaneous in time despite the fact that the communication direction is bidirectional, and as a result, it takes a lot of turn-around time and the efficiency of data exchange is increased. There was a problem in terms.

An object of the present invention is to perform data processing in which a plurality of sets of data processing units can share the same data substantially at the same time, the operations of each data processing unit can exchange data while referring to the data, and efficient information exchange can be performed. To get the equipment.

[Means for solving problems]

The above object is achieved by configuring the display data storage units of the respective data processing units that are connected to each other so as to be capable of data transmission, to be shared by the respective data processing units.

That is, the feature of the present invention resides in that a plurality of sets of data processing units having data transmitting / receiving means capable of mutually transmitting / receiving data are provided, and each of the data processing units stores a display data. Unit, a display unit for sequentially reading the stored contents of the display data storage unit and displaying the contents on a display screen, an input unit for inputting various data, and an independent storage unit for storing the processing target position in the display data storage unit. A plurality of processing target position storage means, and in response to the input data from the input means relating to the display data storage unit, based on the stored contents of the predetermined specific processing target position storage means of the processing target position storage means. First control means for controlling and operating the display data storage section and the processing target position storage means, and the display data storage from the input means. In response to the processing data relating to the display data storage unit from the transmission unit of the other data processing unit, the transmission unit transmitting the input data relating to the above to the other data processing unit, The display data storage unit and the second control unit for controlling and operating the display data storage unit and the processing target position storage unit based on the stored contents of the other processing target position storage unit assigned to the other data processing unit. .

[Action]

According to the above, when each data processing unit inputs the data relating to the operation of the display data storage unit from the input unit, the first control unit is based on the storage content of the specific processing target position storage unit. The display data storage unit is processed and operated. The data related to the processing operation of the display data storage section from this input means is simultaneously transmitted to another data processing section via the transmission means. When the other data processing unit receives the data related to the processing operation of the display data storage unit, the storage content of the other processing target position storage unit previously assigned to the data processing unit that has transmitted the data by the second control unit. The display data storage unit or the content of the processing target position storage means is processed according to the operation. Of course, when the data related to the display data storage unit transmitted from another data processing unit is received, the display data storage unit of the own data processing unit or the processing target position storage unit assigned to the other data processing unit is also similarly received. The contents are processed and operated by the second control means based on this data.

Therefore, the contents of the display data storage unit of each data processing unit are always the same during the dialogue, and each operator can confirm the similar display screens that have been changed. That is, the contents of the display data storage unit of the other party can be operated in the same manner as the own display data storage unit, and this can be expressed by processing and operating the contents of the own display data storage unit.

That is, the conventional one has a mode in which the data processing units have a dialogue with each other in the same manner as the so-called “letter” exchange. Alternatively, the operator can freely write a character or the like on the blackboard and erase or correct the character so that the dialogue can be realized.

〔Example〕

 An embodiment of the present invention shown in the drawings will be described below.

FIG. 2 shows the concept of the present invention.

The data processing units 1 and 2 as communication terminals are connected to the network 3
Connection via a communication line. This line network 3 may be a switched line or a line network 3 such as a local area network. The information input from the input means of each data processing unit 1, 2 such as a keyboard is written in the virtual blackboard 4, and the contents are the contents of each data processing device 1, 2
Is displayed on the display device.

FIG. 1 shows the components of the data processing devices 1 and 2, and the virtual blackboard 4 of FIG. 2 is actually an individual display data storage unit 11 in each data processing device 1 and 2. In preparation for
It is realized by updating the contents at the same time. The display data storage unit 11 stores display data to be displayed on the display device 12.

Reference numeral 12 is a display device for sequentially reading the contents of the display data storage unit 11 and displaying the contents on a display screen SC. As this display device 12, a raster scan type cathode ray tube which is generally used as a display device. It can be realized with a display device. Reference numerals 13a and 13b denote processing target position storage units that store processing target positions in the display data storage unit 11, for example, positions for writing, erasing, or correcting display data.
13a is assigned to the data processing device 1, and the storage unit 13b is assigned to the data processing device 2. Since the processing target position storage units 13a and 13b are designed to specify arbitrary positions in the display data storage unit 11 by the orthogonal coordinate values, the respective storage units 13a and 13b store the X coordinate of the display data storage unit 11. X
Coordinate storage units SX, PX and Y coordinate storage units SY, PY for storing the Y coordinates of the display data storage unit 11 are provided. These storage unit 1
As a result, each memory content of 3a and 13b is reflected on the display device 12,
These are displayed as a cursor on the display screen SC. In this case, two cursors will be displayed on the display screen SC. One is a cursor assigned to 1 in its own data processing unit displayed on the display screen SC by the stored contents of the storage unit 13a, and the other one is displayed on the display screen SC by the stored contents of the storage unit 13b. Is a cursor assigned to another data processing unit 2. Reference numeral 14 denotes a keyboard as an input means, in which various data input keys are arranged, display data DD to be written in the display data storage unit 11, and processing target position control data C for designating and operating this writing position.
It is configured to input D and various data. 1
Reference numeral 5 is a first control means, which includes display data writing means DDW and writing position updating means CCR. Display data writing means DDW
Responds to the display data DD from the keyboard 14, fetches the storage contents of the processing target position storage unit 13a, and writes this display data DC to the write position of the display data storage unit 11 designated by this storage unit 13a. Then, the storage content of the processing target position storage unit 13a is updated so that this specifies the next writing position in the display data storage unit 11. The write position updating means CCR responds to the processing target position control data CD from the keyboard 14 and updates the stored contents of the processing target position storage unit 13a so that this specifies the processing target position designated by the display data storage unit 11. To do.

As described above, the storage content of the processing target position storage unit 13a is reflected as a cursor on the display screen SC of the display device 12. Therefore, the above will be described centering on the cursor as follows. That is, the display data writing means DDW receives the display data DD from the keyboard 14 and writes it at the cursor position, and at the same time moves the cursor to the next writing position. The cursor movement control key corresponds to the processing target position control data CD from the keyboard 14, and the cursor can be moved to any position on the display screen SC by the cursor movement control key. Writing position updating means
The CCR executes this cursor position update operation.

Reference numeral 16 is a transmission means for sending the display data DD relating to the display data storage section 11 and the processing target position control data CD input from the keyboard 14 to the data processing section 2 via the data transmission / reception means 17. Further, the data transmitting / receiving means 17 is the same data from the transmitting means 16 provided in the data processing unit 2,
That is, the display data DD related to the display data storage unit 11 and the processing target position control data CD are received and input to the second control means 18 described later.

Reference numeral 18 denotes a second control means, which is a display data writing means DDW '
And a writing position updating means CCR '. . The display data writing means DDW 'responds to the display data DD from the keyboard 14 of the data processing section 2 received by the data transmitting / receiving means 17, fetches the storage contents of the processing target position storage section 13b, and designates this storage section 13b. This display data is written in the write position of the display data storage unit 11. Then, the storage content of the processing target position storage unit 13b is updated so that this specifies the next writing position in the display data storage unit 11. The write position updating means CCR 'is the processing target position control data from the keyboard 14 of the data processing unit 2 received by the data transmitting / receiving means 17.
In response to the CD, the contents stored in the processing target position storage unit 13b are updated so that the processing target position in the display data storage unit 11 is designated.

As described above, the storage content of the processing target position storage unit 13b is reflected as a cursor on the display screen SC of the display device 12. Therefore, the above will be described centering on the cursor as follows. That is, the display data writing means DDW 'receives the display data DD received from the data transmitting / receiving means 17 from the keyboard 14 of the data processing unit 2 and writes it at the cursor position, and at the same time moves the cursor to the next writing position. To do. The processing target position control data CD from the keyboard 14 of the data processing unit 2 received by the data transmitting / receiving means 17 corresponds to a cursor movement control key, and the cursor is placed at an arbitrary position on the display screen SC by the cursor movement control key. You can move. The write position updating means CCR 'executes this cursor position updating operation.

By doing so, the two cursors on the display screen SC of the display device 12 provided in each of the data processing devices 1 and 2 can be operated completely independently, and the writing of the display data DD to the position is also completely independent. Can be done. Further, since the cursor position can be moved to an arbitrary position on the display screen SC by the cursor movement key, it is possible to write at the position already written. That is, the display data DD input from the keyboard 14 is written to the corresponding position of the display data storage unit 11 by the display data writing unit DDW and displayed, and at the same time, the display data DD is transmitted by the transmission unit 16 to the data transmission / reception unit. It is sent to the data processing unit 2 via 17. The data processing unit 2 that receives the display data DD receives the second control means 18 provided in the processing unit 2.
The display data writing means DDW 'writes the display data in the corresponding position and displays it. Therefore, both display data are always the same, and it is possible to realize an image in which two people have a conversation in front of one blackboard.

An embodiment of the present invention shown in FIGS. 3 to 13 will be described below. FIG. 3 is a block diagram showing the configuration of the data processing units 1 and 2. The data processing units 1 and 2 have the same configuration. The figure shows the configuration of the data processing unit 1 and the data processing unit 2 is omitted. Is shown. This embodiment shows a case in which a relatively small computer device generally called a personal computer is used as the data processing units 1 and 2. Reference numeral 21 is a processing unit, which uses a 16-bit microprocessor. A main memory 22 stores various programs and data. In the case of the present embodiment, the display data storage unit 11 uses a text / video RAM because it is intended to display character data. The display device 12 is a raster scan type CRT.
(Cathode Ray Tube) Display 23 and this CRT Display 2
And a CRT controller 24 for controlling 3. The display data storage unit 11 stores the character code of the character displayed on the display screen SC of the CRT display 23, and the CRT controller 24 sequentially reads out the character code which is the stored content from the display data storage unit 11, and the character code Is developed into a character font and supplied to the CRT display 23. CRT display
23 receives this supply and displays a predetermined character on the display screen SC. The keyboard 14 as an input device has a key layout of JI
We use the S array, which connects to bus B via the keyboard interface 25. The data transmitting / receiving means 17 is a serial interface 26, a modem 27 and a network control device.
Transmission data supplied via the bus B is sent to the communication line 29 via the data transmitting / receiving means 17 and supplied to the data transmitting / receiving means 17 of the data processing unit 2. The data transmitted from the data transmitting / receiving means 17 of the data processing means 2 is received by the data transmitting / receiving means 17 and supplied to the bus B. Further, in this embodiment, a floppy disk storage device 30 is provided as an external memory, which is connected to the bus B via a floppy disk controller 31. The storage device 30 inputs / outputs a program or various data from / to the main memory 22 via the controller. As described above, each unit is connected to the processor 21 by the bus B, and the processor 21 controls each unit based on the program and the data stored in the main memory 22. The processing target position storage units 13a and 13b in FIG. 1 are set to predetermined addresses in the main memory 22, as described later. Further, the first control means 15, the transmission means 16 and the second control means 18 in FIG.
This program is stored in the main memory 22 in advance. This program will be described in detail later.

FIG. 4 is a diagram showing the external appearance of the data processing unit 1 shown in FIG. The MU is the main body of the processing unit, and has two floppy disk drives 30 and various interfaces. The CRT display 23 is a color display capable of displaying 25 lines with 80 characters per line. The CU is equipped with a modem 27 and a network controller 28, and is composed of a multifunction telephone integrated with a telephone. Although the keyboard 14 is a JIS layout keyboard, it has a kana / kanji conversion function and can also input Japanese kanji.

FIG. 5 is a flow chart showing the processing procedure of the processing means PM provided with the first control means 15, the second control means 18 and the transmission means 16, the means PM being in the form of a program in the main memory.
The data is stored in the storage device 22, and the processing device 21 sequentially reads and executes it to achieve a predetermined function. Hereinafter, this figure will be described. The processing means PM is roughly divided into two processes. One of them is a process of activating the transmission means 16 and the first control means 15 by a key input from the keyboard 14 provided in the own data processing section 1, and the other one is another data processing section 2 connected to it. This is a process of activating the second control means 18 in response to the data input from. This processing means
When the PM is activated, first, in step 5a, it is determined whether or not there is a key input from the keyboard 14. Here, if there is a key input, the process proceeds to step 5b. In this step 5b, it is determined whether or not the key input that was input in step 5a is a local command not related to the display data storage unit 11, and if this is a local command, the process proceeds to step 5c. , Executes the processing of the command. Since this local command is not directly related to the present invention, its explanation is omitted. If the key input in step 5b is not the local command but the key input to the display data storage unit 11, the processing is moved to step 5d. Step 5d
Is the execution of the transmission means 16, here the data transmission / reception means
A data transmission request signal to the data processing unit 2 and the key data input in step 5a are sent to the controller 17. As a result, the data transmitting / receiving means 17 transmits this signal and data to the data processing device 2 via the communication line 29 via the serial interface 26, the modem 27, and the network control device 28. In the following step 5e, it is determined whether or not the key data applied in step 5a is a key for requesting updating of the processing target position control data CD, that is, the writing position in the display data storage unit 11. The writing position update request key corresponds to the cursor movement control key described above. If the input key is the cursor movement control key, the process moves to step 5f and the writing position updating means CCR is executed. As will be described later in detail, the means CCR responds to various cursor movement control keys and updates the processing target position storage unit 13a so as to move the cursor to a desired position. Step 5
If it is determined in e that the input key is not the write position update request key, this key data is the display data DD, and the process proceeds to step 5g to execute the display data writing means DDW. As will be described later in detail, the means DDW writes the input display data DD to the storage position of the display data storage unit 11 designated by the processing target position storage unit 13a, and also writes the contents of the processing target position storage unit 13a to the next Update to the writing position.

When there is no key input from the keyboard 14 at the time of execution of step 5a or when any one of steps 5c, 5f and 5g is completed, the process proceeds to process step 5h. In step 5h, it is determined whether or not the data transmission request signal is transmitted from the data processing unit 2, and if there is the signal, the data related to the display data storage unit 11 from the data processing unit 2, that is, the display data.
Take in DD and processing target position control data CD. Then, the process proceeds to step 5i. In step 5i, if the taken-in data is the processing target position control data CD, the processing is moved to step 5j, and the write position updating means CCR 'is executed. As will be described later in detail, the means CCR 'responds to various cursor movement control keys and updates the processing target position storage unit 13b so as to move the cursor to a desired position. If it is determined that the data fetched in step 5i is not the processing target position control data CD, this data is the display data DD, and the process is transferred to step 5k to display data writing means DD.
Execute W ′. The means DDW ′ is, as described in detail below,
While writing the input display data DD in the storage position of the display data storage unit 11 designated by the processing target position storage 13b,
The contents of the processing target position storage unit 13b are updated to the next writing position.

In step 5h, when there is no data transmission request signal from the data processing unit 2 or when either one of the steps 5j and 5k is completed, the process moves to step 5a again, and the above is repeated.

The above processing means PM is also provided in the data processing unit 2. still,
At this time, the data processing unit 1 and the data processing unit 2 have an inverse relationship.

FIG. 6 shows the write position updating means shown in step 5f in FIG.
It is a flowchart which shows CCR. As described above, the means CCR is the processing target position control data from the keyboard 14.
In response to the CD, the stored content of the processing target position storage unit 13a is updated so that the processing target position of the display data storage unit 11 is designated. As the processing target position control data CD, that is, the cursor movement control key, generally, as shown in FIG. 10, there are seven control codes, and the keyboard 14 is provided with a key corresponding to the key code.

"CR" key has a return function, which means to move the cursor to the beginning of the line that currently exists, "LF" key has a line feed function, which moves the cursor to the line next to the line that currently exists Means that. The "→" key means move the cursor one character to the right from the current position,
Similarly, the "←" key means to move one character to the left. Similarly, the “↑” key means to move up by one character, and “↓” means to move down by one character. The "HOME" key means to move to the first column of the cursor first row, that is, to the upper left corner of the display screen SC.
FIG. 11 shows a display screen SC and a cursor (hereinafter referred to as a self-cursor) SCL displayed on the display screen SC by the processing target position storage unit 13a, and a display screen SC by the processing target position storage unit 13b. It is a figure which showed the relationship with a cursor (henceforth a partner cursor) PCL. In this embodiment, as the display screen SC, one having 80 characters per line and capable of displaying 25 lines is used. Therefore, in the case of the own cursor SCL, the position of the upper left corner of the display screen SC is 1 in the storage unit SX.
Then, the storage unit SY becomes 1. . Hereafter, store this in the storage section SX, SY,
In the case of a relative cursor, it is shown in the order of storage FX, PY, and (1,
1) is displayed. Similarly, the upper right end is (1,80), the lower left end is (25,1), and the lower right end is (25,80). The storage units SX, SY, PX, PY that form the processing target position storage units 13a, 13b.
Is set to a predetermined address of the main memory 22 in this embodiment.

Hereinafter, FIG. 6 will be described in detail with reference to FIG. 10 and FIG. This writing position updating means CCR responds to the above-mentioned seven keys. That is, when the means CCR is activated, the key code entered in step 6a is "C
It is determined whether or not it is the "R" code, and if so, the storage unit SY is set to "1", and the process proceeds to step 6z. If not, it is determined whether or not the code input in step 6c is the "LF" code, and if so, in step 6d the storage unit SX
"1" is added to. Then, in step 6e that follows, remember SX
It is determined whether or not the stored contents of is more than 24 lines. If it is more than 24 lines, the stored contents of the storage unit SX is set to "1" in step 6f. This is an operation of moving the cursor SCL from the bottom line to the top line of the display screen SC. Step 6e
If the condition of is not satisfied, the cursor SCL is in the middle of the display screen SC, and in this case, the process proceeds to step 6z. In step 6g, it is determined whether the input code is a "→" code, and if so,
In step 6h, "1" is added to the storage section SY. Then, in the subsequent step 6i, it is determined whether or not the storage content of the storage unit SY is 80 characters or more. If it is 80 characters or more, the storage content of the storage unit SY is set to "1" in step 6j. This is the cursor
This is an operation for moving SCL from the rightmost end to the leftmost end of the display screen SC. If the condition of step 6h is not satisfied, it means that the cursor SCL is in the middle of the display line. In this case, the process proceeds to step 6z. In step 6k, it is determined whether or not the input code is the "←" code, and if so, it is determined in step 61 whether or not the storage content of the storage unit SY is "1". This is the cursor SCL
It is determined whether or not is located at the left end of the display line. If it is at the left end, set "80" in the memory section SY in step 6m, move the cursor SCL to the rightmost end of the display line, and if not, set "1" in the content of the memory section SY in step 6n. Subtract and move the process to step 6z. In step 6o, it is determined whether or not the input code is the "↑" code, and if so, it is determined in step 6p whether or not the storage content of the storage unit SX is "1". This is the cursor SCL display screen SC
It is determined whether or not it is located in the top row of. If it is on the top row, "25" is set in the storage section SX in step 6q, the cursor SCL is moved to the bottom row of the display screen SC, and if not, "1" is read from the content of the storage section SX in step 6r. Is subtracted, and the process proceeds to step 6z. In step 6s, it is determined whether or not the input code is the "↓" code, and if so, it is determined in step 6t whether or not the storage content of the storage unit SX is "25". This is the cursor SCL display screen S
It is determined whether it is located at the bottom of C. And
If it is in the bottom line, set "1" in the storage section SX in step 6u, move the cursor SCL to the top row of the display screen SC, otherwise, set "1" in the content of the storage section SX in step 6v. Then, the processing is moved to step 6z. In step 6w, it is determined whether or not the input code is the "HOME" code, and if so, it is set to "1" in the storage section SX in step 6x, and the step is set.
At 6y, set “1” in memory SY. Then, the process proceeds to step 6z. In step 6z, the cursor SCL is moved to a predetermined position based on the storage contents of the storage units SX and SY updated as described above.

As described above, the writing position in the display data storage unit 11, that is, the position of the cursor SCL on the display screen SC can be moved to a desired position by the cursor movement control key.

FIG. 7 is a flow chart showing the display data writing means DDW shown in step 5g in FIG. As described above, the means DDW responds to the display data DD from the keyboard 14 and writes it at the cursor position, and at the same time the cursor SC
Move L to next write position. That is, the means DDW
When is activated, first, in step 7a, the input data is written in a predetermined position of the display data storage unit 11 indicated by the storage units SX and SY. That is, this input data is displayed at the cursor position determined by the storage units SX and SY. In the following step 7b, "1" is added to the stored contents of the storage unit SY. That is, the cursor SCL is moved to the next character position. In the next step 7c, whether the stored content of the storage unit SY exceeds “80”, that is, whether the position of the cursor SCL exceeds the right end of the display screen SC. To determine. If not, the process proceeds to step 7h. If it exceeds, the content of the storage unit SY is set in the cursor in step 7d. This means to move the position of the cursor SCL to the beginning of the line. In the following step 7e, "1" is added to the contents of the storage section SX. That is, the display line of the cursor SCL is updated.
Then, in step 7f, it is determined whether or not the content of the storage section SX exceeds “25”, that is, whether or not the cursor SCL exceeds the bottom line of the display screen SC, and if not, the process proceeds to step 7h. Moved, and if it exceeds, in step 7g storage section SX
Is set to "1". Then, the process proceeds to step 7h. In step 7h, the storage unit SX, S updated as described above is
The cursor SCL is moved to a predetermined position based on the stored contents of Y.

As described above, the input display data is displayed in the display data storage unit.
11 is written in a predetermined position and is written in the display data storage unit 11, that is, the cursor SCL on the display screen SC.
The position of is set to the next display data power position.

FIG. 8 shows the write position updating means shown in step 5j of FIG.
It is a flowchart which shows CCR '. As described above, the means CCR 'responds to the processing target position control data from the keyboard 14 of the data processing unit 2 received by the data transmitting / receiving means 17, and stores the contents stored in the processing target position storage unit 13b.
This is updated so that the designated processing target position in the display data storage unit 11 is designated. Further, the means COR 'responds to the seven cursor movement control keys shown in FIG. 10 like the writing position updating means CCR. That is, when the CCR 'is activated, it is determined in step 8a whether or not the key code received and input is the "CR" code, and if so, the storage unit PY is set to "1", The process moves to step 8z. Otherwise, the code entered in step 8c is "L
F "code, if yes, step 8d
Then, "1" is added to the storage unit PX. And the following steps
In 8e, it is judged whether the memory content of the memory section PX is 24 lines or more, and 24
If it is equal to or more than the line, the storage content of the storage unit PX is set to "1" in step 8f. This is an operation of moving the cursor PCL from the bottom line to the top line of the display screen SC. If the condition of step 8e is not satisfied, it means that the cursor PCL is in the middle of the display screen SC. In this case, the process proceeds to step 8z.

In step 8g, it is determined whether or not the received and input code is the "→" code, and if so, in step 8h the storage unit
Add "1" to PY. Then, in a succeeding step 8i, it is determined whether or not the storage content of the storage unit PY is 80 characters or more. If it is 80 or more characters, the storage content of the storage unit PY is set to "1" in a step 8j. This is an operation of moving the cursor PCL from the rightmost end to the leftmost end of the display screen SC. Step
If the condition 8i is not satisfied, it means that the cursor PCL is in the middle of the display line. In this case, the process proceeds to step 8z. In step 8k, it is determined whether or not the received and input code is the "←" code, and if so, it is determined in step 81 whether or not the storage content of the storage unit PY is "1". This determines whether or not the cursor PCL is located at the left end of the display line. If it is at the left end, set "80" in the memory section PY in step 8m and move the cursor
The PCL is moved to the rightmost end of the display line, and otherwise, "1" is subtracted from the contents of the storage section PY in step 8n, and the process proceeds to step 8z. In step 8o, it is determined whether or not the received and input code is the "↑" code, and if so, it is determined in step 8p whether or not the storage content of the storage unit PX is "1". This determines whether or not the cursor PCL is located on the top line of the display screen SC. Then, if it is on the top row, "25" is set in the storage section PX in step 8q, PCL is moved to the bottom row of the display screen SC, and if not, step 8r
Subtract "1" from the contents of storage section PX, and step
Move to 8z. In step 8s, the received code is
Determine if it is a "↓" code, and if so, step
At 8t, it is determined whether the storage content of the storage unit PX is "25". This determines whether or not the cursor PCL is located at the bottom line of the display screen SC. And if at the bottom,
In step 8u, set “1” in the memory area PX and set the cursor PCL
Is moved to the top line of the display screen SC, otherwise "1" is added to the contents of the storage section PX in step 8v, and the process is moved to step 8z. In step 8w, it is determined whether the received and input code is the "HOME" code, and if so, the step
Set “1” in the memory section PX with 8x and memory section PY with step 8y.
Is set to "1". Then, the process proceeds to step 8z. In step 8z, the storage unit PX, P updated as above is
The cursor PCL is moved to a predetermined position based on the stored contents of Y.

As described above, the writing position in the display data storage unit 11, that is, the position of the cursor PCL on the display screen SC can be moved to a desired position by the cursor movement control key provided on the keyboard 14 of the data processing unit 2.

FIG. 9 is a flow chart showing the display data writing means DDW 'shown at step 5k in FIG. As described above, the means DDW 'responds to the display data DC from the keyboard 14 of the data processing unit 2 and writes it at the cursor position,
At the same time, the cursor PCL is moved to the next writing position. That is, when the means DDW 'is activated, first, step 9a
Then, the received and input data is written in a predetermined position of the display data storage unit 11 indicated by the storage units PX and PY. That is, this input data is displayed at the cursor position determined by the storage units PX and PY. In the following step 9b, the storage unit
Add "1" to the stored contents of PY. Ie cursor
Move PCL to the next character position. In the next step 9c,
It is determined whether the storage content of the storage unit PY exceeds “80”, that is, whether the position of the cursor PCL exceeds the right end of the display screen SC. If not, the process proceeds to step 9h. If it exceeds, the content of the storage unit PY is set to "1" in step 9d. This means to move the position of the cursor SCL to the beginning of the line.

In the following step 9e, "1" is added to the contents of the storage unit PX. That is, the display line of the cursor PCL is updated. Then, in step 9f, it is determined whether or not the content of the storage unit PX exceeds “25”, that is, whether or not the cursor PCL exceeds the bottom line of the display screen SC, and if not, the process proceeds to step 9h. If it exceeds the limit, in step 9g, "1" is set in the storage unit PX. Then, the process proceeds to step 9h.
In step 9h, the cursor SCL is moved to a predetermined position based on the storage contents of the storages PX and PY updated as described above.

As described above, the display data received and input is written in a predetermined position of the display data storage unit 11, and the writing position in the display data storage unit 11, that is, the position of PCL on the display screen SC is set to the next reception display data input position. Is set.

FIG. 12 shows an example of the operation of the embodiment.
As shown in FIG. 9A, at the initial point of activation, both the own cursor SCL and the other-side cursor PCL are assumed to be present at the upper left corner of the display screen SC. In this state, if the keys "A", "B", "?" Are input to this, as shown in FIG. 12 (b), the operation of the display data writing means DDW causes 1 "AB?" Is displayed on the line from the left end, and the own cursor SCL is located at the 4th character on the 1st line. This display data D
At the same time, D is sent to the data processing section 2 and the similar characters are displayed on the display screen SC by the action of the display data writing means DDW '. However, the cursor assigned to the data processing unit 1, that is, the relative cursor PCL when viewed from the data processing unit 2 is displayed at the fourth character on the first line. Next, as shown in FIG. 12 (c), if the keys "CR" and "LF" are entered in this order, the action of the write position updating means CCR causes
The own cursor SCL moves to the beginning of the second line and is sent to the data processing unit 2 at the same time, and the cursor corresponding to the data processing unit 1 also moves to the same position on the display screen SC. Subsequently, as shown in FIG. 12D, the key data “→”, “→”, “C” are sent in this order from the data processing unit 2, that is, the keyboard 14 of the data processing unit 2.
If these are operated in this order, the display data writing means DD
By the action of W ', the third character on the first line of the display screen SC is changed from "?" To "C". Here, the character shown by the dotted line is
Indicates that it has been corrected by the other party.

The above description is centered on the data processing unit 1, but when the data processing unit 2 is centered, these relationships may be reversed.

FIG. 13 shows another example of operation in the embodiment, and FIG. 13 (a) shows the contents input by the keyboard 14 of the data processing unit 1, which is the same as the data processing unit 2 at the same time.
Are simultaneously displayed on the display screen of. FIG. 13 (b) shows a state in which the display of FIG. 13 (a) has been corrected by the other side, that is, the operation of the data processing section 2, and the characters shown by the dotted lines show the correction and addition contents of the other side. Of course, the display screen SC of the other party has the same display content.

In these examples, the characters input from the own data processing unit are shown by solid lines, the characters sent from the other data processing unit are shown by dotted lines, and the own cursor SCL is shown as a diagonal striped pattern and the other cursor PCL is shown. Although it is shown in a checkerboard pattern, this is its display attribute, for example, its display color,
Alternatively, it means changing the brightness or the like, which makes it possible to easily distinguish the data and improve the operability.

Also, as the local command, enter information to interact on the display screen SC from the floppy disk storage device 30,
If the contents of the display screen SC of the communication result are stored in the floppy disk storage device 30, the operability will be further improved.

As described above, according to the embodiment, by operating the display contents of the own data processing unit, the contents are simultaneously reflected in the partner data processing unit. Therefore, since both parties can talk while seeing the same display content at the same time, efficient information exchange becomes possible.

In the above embodiment, for simplification of description, the case where two data processing units 1 and 2 perform data communication with each other has been described as an example. There is no limit. That is, depending on the number of data processing units that perform data communication with each other, if the processing target position storage 13b assigned to each data processing unit and the second control means 18 are increased, a plurality of units can simultaneously share data. It becomes possible to communicate with each other.

Further, in the present embodiment, the case where the storage capacity of the display data storage unit 11 matches the size of the display screen SC has been described as an example, but the capacity of the display data storage unit 11 is larger than that of the display screen SC. In such a case, the display device 12
A scroll function that is generally used may be added.

Further, in the embodiment, the description has been made by taking the character data as an example of the display data, but the present invention is not limited to this, and the same interactive communication can be performed with the graphic data. It is also possible to exchange image information such as meetings for drawings.

〔The invention's effect〕

As is clear from the above description, according to the present invention, a plurality of sets of data processing units can share the same data substantially at the same time, and the operation of each data processing unit can perform data exchange while referring to the data, which improves efficiency. It is possible to obtain a data processing device capable of exchanging excellent information.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of the configuration of the present invention, FIG. 2 is a block diagram showing the concept of the present invention, FIG. 3 is a block diagram showing an embodiment of the present invention, and FIG. 4 is FIG. 5 is a flow chart showing an example of processing means, FIG. 6 is a flow chart showing an example of writing position updating means CCR, and FIG. 7 is an example of display data writing means DDW. FIG. 8 is a flowchart showing the writing position updating means.
FIG. 9 is a flowchart showing an example of the CCR ', FIG. 9 is a flowchart showing an example of the display data writing means DDW', FIG. 10 is an explanatory view for explaining the cursor movement control keys, and FIG. 11 is a relationship between the display screen and the cursor. Explanatory drawing showing FIG. 12 (a)
~ (D) is a transition diagram of the display form in the example of the operation,
(A), (b) is a transition diagram of a display form in another example of the operation. 1,2: data processing unit, 11: display data storage unit, 12: display unit, 13a, 13b: processing target position storage unit, 14: input unit, 15: first control unit, 16: transmission unit, 18: Second control means.

Claims (8)

[Claims] 1. A device having a plurality of sets of data processing units each having a data transmitting / receiving unit capable of transmitting and receiving data to and from each other, wherein each of the data processing units includes a display data storage unit for storing display data, and the display data. Display means for sequentially reading the storage contents of the storage unit and displaying the contents on a display screen, input means for inputting various data, and a plurality of independent processing target positions for storing processing target positions in the display data storage unit Based on the storage content stored in a predetermined specific processing target position storage means of the plurality of processing target position storage means in response to the input data from the storage means and the display data storage unit from the input means. A first control means for controlling and operating the display data storage section and the processing target position storage means, and the display data storage from the input means. Storage means for transmitting the input data related to the unit to the other data processing unit, and the plurality of processing target position storage units in response to the processing data related to the display data storage unit from the transmission unit of the other data processing unit. A second control for controlling and operating the display data storage unit and the processing target position storage means based on the storage content stored in another processing target position storage means that is previously assigned to the other data processing unit of the means. The input means includes display data and processing target position control data as data to be input, and the first control means responds to the input of the display data from the input means, and displays the display data. It has a self-display data writing means for storing the data in a writing position designated by each of the predetermined specific processing target position storing means, and the second control means is configured to operate from another data processing section. It has another display data writing means for storing the sent display data in a writing position designated by another predetermined processing target position storing means, and the own display data writing means and the other display data writing means A data processing device, which gives different display attributes to respective display data. 2. The data processing device according to claim 1, wherein the stored contents of each processing target position storage means are displayed as a cursor at a position on the display screen corresponding to the position. 3. The self display data writing means and the other display data writing means differ from each other in the display attribute of the cursor corresponding to each processing target position storage means. The described data processing device. 4. The first control means further comprises self-writing position updating means for updating the setting of the specific processing target position storage means in response to input of processing target position control data from the input means. The second control means further includes another write position updating means for updating the setting of the other processing target position storage means in response to the input of the processing target position control data transmitted from the other data processing unit. The data processing device according to claim 3, wherein the data processing device comprises: 5. The self-display data writing means stores display data at a writing position designated by each of predetermined specific processing target position storing means, and then presets the contents of the processing target position storing means. The other display data writing means stores the display data in a writing position designated by another predetermined processing target position storage means, and then stores the display data in the next writing position. The data processing apparatus according to claim 4, having a function of setting the content of the position storage means to a predetermined next writing position. 6. The input means has a cursor movement control key, and the cursor movement control key outputs the processing target position control data for controlling movement of a cursor displayed on a display screen. The data processing device according to claim 4. 7. The processing target position storage means is provided in each data processing unit for each of its own devices and the same number as the number of other data processing units for exchanging data. The data processing device according to item 3, 4, 5 or 6. 8. The second control means is provided in each data processing unit as many as the number of other data processing units for transmitting and receiving data, respectively. The data processing device according to item 6.