JPH02212959A - Communication controller - Google Patents

Abstract

PURPOSE:To realize an effective communication conference by inserting a control instruction signal distributing or switching means to distribute or switch a control instruction signal between the control instruction inputting means and the device controlling means to transmitting and receiving side devices, and switching the flow of a control input signal as synchronizing its own device and another device with each other. CONSTITUTION:Application software 1'A executes the confirmation of the presence of received data and the fetch of the data from a keyboard by the same interface as to BIOS 2A in regard to a control instruction signal distributing function 10. Further, the control instruction signal distributing function 10 sends the change of the internal environment of BIOS 2A to a communication line by controlling BIOS 5A and hardware 6A to execute communication control whenever various kinds of requests from the application software 1'A arise. Thus, a function which had to be generated as being conscious of communication because of the execution of the communication between distant places can be generated without being conscious of a communicating means, and in addition, the function which was generated till then and operates in a local state becomes possible to be used in a remote state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication control device that uses nine communication lines and constantly matches the status of each device among a plurality of communication devices.

(Prior art) When communicating between remote locations, most of the devices that provide exactly the same equipment environment between remote locations are dedicated devices, and their functions are 3. It is limited to a communication function and an offline function when no communication is being performed (when the communication line and device are logically separated), and most of these functions are exclusive to that device.

On the other hand, general-purpose devices with one communication means can use various functions on the device by replacing the software, but most of the functions are in a local state (logically separated from the communication means). Even in the functions using a communication means, a dedicated one created on the premise of using one communication means is used.

(Problem to be solved by the invention) In order to use a function that operates locally on a general-purpose device in the same environment at the same time in remote locations, it is necessary to
Conventionally, a part of the function has been changed so that control can be performed between remote locations, and remote control has been implemented in addition to the local device control means.
I had to create a function for it. In other words, it is a function that is used in its original local state in order to use the same function.

The present invention solves this problem by providing two functions: a function for a remote state between remote locations (logical connection with a communication means, and a function for communicating with a partner device). The objective is to add remote control functionality without making any changes to the functionality that operates locally.

(Means for Solving the Problem) In the present invention, by inserting a control instruction signal distribution/switching means for distributing/switching a control instruction signal between the control instruction input means and the device section input means into the transmitting/receiving device. 4
For the sending device, 1 for the own device! 4131 Control instruction from the instruction input means (No. 3) is transmitted to the device control means of the own device and simultaneously transmitted to a remote location via one communication line, and the receiving device receives the control instruction from the control instruction input means of the own device. Switching is performed between the control instruction signal and the control instruction signal transmitted from a remote location via one communication line, and the control instruction signal is transmitted to the own device control means.

[Effect]

By using the present invention, functions that had to be created with one communication in mind in order to communicate between remote locations can be created without being aware of nine communication means, and,
It will be possible to use functions that have been created so far that operate locally in a remote state.

〔Example〕

FIG. 6 is an internal functional block diagram of a general-purpose personal computer (hereinafter referred to as a personal computer).

1 is written on the premise that communication will be performed using application software that controls a personal computer (hereinafter referred to as AP), 2 is a basic human output program related to keyboard input (hereinafter referred to as BIO3), 3 is hardware that handles input signals from the keyboard, 4 is the keyboard, 5 is a basic output program related to communication control, and 6 is hardware that performs communication control. Hereinafter, devices A and B will be displayed as subscripts of the block numbers (eg, IA is the application software of device A).

Conventionally, AP data input/output was performed using the basic human output program 2.
This is done indirectly using

First, as an example, we will show a conventional procedure for transmitting data input from a keyboard to a partner device via a communication line.In device A, when a person presses a key on keyboard 4A, the information is transferred to the keyboard input hardware. Wear 3
Sent to A. When the keyboard input hardware 3A completes receiving the data, the keyboard input hardware 3A inputs the keyboard BIO 32.
Report the reception to A, and send the keyboard BIO32
A immediately takes in the received data into its own internal reception data buffer. 0 The communication application software (AP) IA uses the functions of BIO32A to check whether data has been received from BIO32A as necessary. and if there is received data, the BIO
Import it into the application software (AP) IA using the S2A function. A P 1. A then uses the functions of the BIO 35A to control the communication control hardware 6.
A is controlled to send data to the communication line. Partner device B
Now, the transmitted data is transferred to the communication control hardware 6.
The application software IB uses the functions of the B1055B to check for the presence or absence of received data as necessary, and if the received data exists, the BIO35B immediately takes it into its own internal reception data buffer. To do this, use the 41 functions of the BIO35B to import it into the application software IB.

Although the computer is configured as described above, the present invention has the configuration shown in FIG. 1 instead of the above configuration. FIG. 1 is a block diagram of the internal functions of a personal computer according to the present invention.

1' is the application that controls the computer.
This is a software AP that is written with local use in mind.
Usually used application software AP
This is an ill instruction signal distribution function that distributes ill instruction signals to a route for transferring to BRO 35 and a route for transferring to BrO 35, and provides the same interface as BIO 52 to application software (AP) l'. 11 is a control instruction signal switching function that switches the normally performed data path from B [052 and ■ the data path from BIO35 received via the communication line and transfers it to the application software AP. - Provides the same interface as B1032B for software I'B.

11J"-, the data entered from the Nawate keyboard 4A is input to the hardware 3.
The data is received by A and immediately taken into the reception data buffer inside the BIO 32A. The application software 1'A checks the presence or absence of data received from the keyboard and imports the data from the control instruction signal distribution function 10 using the same interface as between B1032B, as necessary.・Control instruction signal distribution function 1 upon request from software 1'A
0 operates by controlling BIO52A, and emulation to B2O33 is performed for application software l'A (as if the control instruction I3 distribution function 10 controls BIO3 for application software l'A).
2A (acting to the oak). Furthermore, the control instruction signal distribution function 10 is an applica- tion control software]' that changes the internal environment of the BIO 32A (such as data reception from the hardware 3A) whenever there is a various request from the BIO 32A.
35A, controls the hardware 6A that performs communication control n, and sends out data to the communication line.

The data transmitted from the branch device A via the communication line is taken into the internal data buffer of the BIO 35B of the device B via the hardware 6B that performs communication control. Similar to the application software 1'A, the application software 1'B checks whether there is data received from the keyboard and imports the received data using the same interface as between the BIOS 2B and the control instruction signal switching function 11 as necessary. The control instruction signal switching function 11, which performs and set B l05 for application software 1'B.
2A (2B) Eminirecigon operation is performed, which allows device B to behave as if it were operated by keyboard input on device A.
Furthermore, if device A and device B are equivalent, it is possible to make their environments exactly the same.

In addition, the control instruction signal distribution function 10 and the control instruction signal switching function 11 are integrated and installed at the same position, and a predetermined data transmission and reception protocol (protocol) is established between the devices.
By alternately sending and receiving input from the keyboard, you can easily share a shared screen space (
It is possible to form W\S[WIS].

FIG. 2 is a conceptual configuration diagram of an embodiment of the control instruction signal distribution function.
3 shows an example of the data flow in FIG. 2, FIG. 4 is a conceptual block diagram of an embodiment of the control instruction signal switching function, and FIG. 5 shows an example of the data flow in FIG. 4.

In FIG. 2, 10 is a control instruction signal distribution function.

10A to IOC represent data buffers, and lOD represents a switch.

The control instruction signal from the BIO 32A is distributed to the BIO 35A in accordance with the distribution control signal from the application software 1'A and the BIO 32A.The control instruction signal received from the BIO 52A is sent to the data buffer IOA as a distribution control signal (eg.

A special shift-in code) is extracted.

If it is a distribution control signal, the subsequent control m instruction signal is distributed and transmitted to the BIO 35A. si shown in FIG. 3 is a distribution control signal (IN), and SO is a distribution control signal (O
Data other than the 0 distribution control signal (UT) is sent to the application software 1'8, and data sandwiched between the distribution control signal (IN) and the distribution control signal (OUT) is sent to the BIO 35A.

In FIG. 4, 11 is a control instruction signal switching function 4J1, 1.1. A to IIC are husband data buffers, 1
1D represents a switch, regarding a control instruction signal to application software 1'B.

The information from the BIO 32B and the information from the BIO 55B are switched by a switching control signal from the BIO 52B. Sl shown in FIG. 5 is a distribution control signal (IN),
SO is a distribution control signal (OUT).The part sandwiched between the control signals for data distribution sent from BIO32B is filled with data from BIO35B, and is divided into 1 distribution control signal (IN) and distribution control signal (OUT). It is sent to the application software 1'B in a form excluding the .

〔Effect of the invention〕

As mentioned above, communication can be easily performed using a general-purpose PC without creating software that is conscious of communication, and furthermore, it is possible to easily create an identical environment (wysIWIS) between remote locations. .

Cheaper and more effective teleconferencing is possible.

One more thing about this invention. By applying the present invention not only to input from a keyboard, but also to various interactive input devices (eg, a mouse, etc.), more effective communication becomes possible.

[Brief explanation of the drawing]

FIG. 1 shows the interior 8! of a personal combinator according to an embodiment of the present invention. 2 is a conceptual block diagram of one embodiment of the control 31 instruction signal distribution function, FIG. 3 is an example of the data flow in FIG. 2, and FIG. 4 is a conceptual diagram of one embodiment of the control instruction signal switching function. Diagram. FIG. 5 is an example of the data flow in FIG. 4, and FIG. 6 is an internal functional block diagram of a conventionally used general-purpose personal computer. lA, lB. 1'A, 1'B... Absolute software 2A, 2B... Basic output program (BIOS) related to keyboard input 3A, 3B... Handles input signals from the keyboard Hardware 4A, 4B...Keyboard 5A, 5B...Basic output program (BIOS) related to communication system fil 6A, 6B...Hardware 10 that performs communication control
... Control instruction signal distribution function 11 ... Control instruction signal switching function cylinder 1 Figure 6 Figure 1'A Figure 6 Figure 1

Claims (1)

[Claims] Control instruction input means for inputting control instructions for the operation of the device;
Distributing and switching control input signals in a device having communication control means for controlling communication with other devices and device control means for controlling the entire device based on control input signals input from control instruction input means. A function of distributing a control instruction signal from the control instruction input means to the communication control means and the device control means, and a function of switching between the control instruction signal from the own device and the control input signal received from another device via the communication control circuit. What is claimed is: 1. A communication control device comprising: a control input signal distribution/switching means having a control input signal distribution/switching means for switching the flow of control input signals between the device itself and other devices in synchronization with each other.