KR0138390B1 - Computer network - Google Patents

Abstract

The present invention allows a computer communication network device to be accessible to a plurality of personal computers and to be used not only for local area communication but also for long distance communication.

The present invention provides an input / output port comprising a data output port, a data input port, and a state setting port, and transmits N-bit data transmitted through a data output port of another personal computer to the data input port and the state setting port. A plurality of personal computers receiving and dividing the data into predetermined bits by combining the received data into N-bit data, and outputting the N-bit data through the data output port. A cable is connected to enable input and output of data, and a connector is connected at one terminal to an input / output port of the personal computer, and at the other terminal to one terminal of the cable.

Therefore, the present invention has the effect of improving the operational efficiency of the local area network by connecting a cable between a plurality of personal computers to configure the local area network, the use of computer communication as mutual communication between different local areas is also possible Efficiency can be maximized.

Description

Computer network

The present invention relates to a communication network using a computer, and more particularly, a computer capable of data access (ACESS) between a plurality of personal computers using a parallel port of a personal computer, which can be used not only for local area communication but also for long distance communication. It relates to a communication network device.

Local area network (LAN), which enables communication between users within a certain distance, has been developed in various forms and manners as the demand for information amount and communication efficiency increases.

In general, in the local area network has been used conventionally, a separate dedicated card is required and difficult to install.

Referring to Fig. 1 showing an example of a conventional configuration of a local area network, a plurality of user computers PC1-PC8 are connected to one server personal computer (PCS). . The server personal computer (PCS) stores software and data necessary for work and provides them to the connected users.

As shown in Fig. 1, each of the personal computers PC1-PC8 on the user side and the personal computer PC for the server are connected in a one-to-one manner. However, in the configuration method as shown in Fig. 1, in addition to the need for a dedicated cable and a dedicated configuration for the local area network, the personal computers PC1-PC8 of several users are connected to one server personal computer (PCS). In this case, there is a problem that the burden on the personal computer for the server (PCS) is large.

In addition, since two personal computers are connected to the server side and the user side, the server personal computer cannot be used while the personal computer of the user side is in use, and only the personal computer of the user side is stored in the personal computer of the server side. You can only access.

In addition, there is a limitation that the CD-ROM on the server side cannot be used on the user side. As a result, the conventional local area network as shown in FIG. 1 is connected to the user side and the server side in a one-to-one manner, so that only one-sided access from the user side personal computer to the server side personal computer is limited. There is.

Accordingly, an object of the present invention is to provide a data access (ACESS) between a plurality of personal computers by using a parallel port of the personal computer to solve the above-described problems, mutual access that can be used for local communication as well as long-distance communication It is to provide a possible computer communication network device.

1 is a view showing the configuration of a local area network used in the prior art;

2 is a diagram showing an embodiment in which a computer communication network according to the present invention is used in a local area;

3 is a diagram showing an embodiment in which a computer communication network according to the present invention is used over a long distance;

4 is a view showing the connection state (Fig. 4 (A)) of the connector and the cable used in the present invention and the pin connection state (Fig. 4 (B)) of the connector used in the parallel communication;

5 is a view showing a connection state (Fig. 5 (A)) of the connector and the cable used in the present invention and the pin connection state (Fig. 5 (B)) of the connector used in the case of serial communication,

Figure 6 shows the internal pin connection of the connector used in Figures 4 and 5,

7 is a view showing a connection state between each of the ports and the connector used in parallel communication.

* Code description of the main parts of the drawings

100: connector 10: parallel connector

20: serial connector 30: cable

33: male terminal of cable 35: female terminal of cable

LA1: Local First Region LA2: Second Local Location

PC1-PC10, PC1'-PC10 ': Personal Computer

P1-P6, P1'-P6 ': Printer

In the computer communication network device according to the present invention for achieving the above object, the device of the present invention is provided with an input and output port consisting of a data output port, a data input port and a state setting port to provide a data output port of another personal computer. Receives N-bit data transmitted through the data input port and the state setting port by dividing it into predetermined bits, processes the data by combining the received data into N-bit data, and processes the data output port. A plurality of personal computers for outputting N-bit data through a cable, a cable for allowing input and output of data between the personal computers, and one terminal connected to an input / output port of the personal computer, and the other terminal connected to one side of the cable. It is characterized by consisting of a connector to which the terminal is connected.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram showing an embodiment in which a computer communication network according to the present invention is used in a local area.

As shown, the configuration is as follows.

The personal computers PC1 to PC10 have an input / output port consisting of a data output port, a data input port, and a state setting port, so that the N-bit data transmitted through the data output port of another personal computer is transferred to the data input port. And receive the data by dividing the data into predetermined bits through the state setting port, combining the received data into N-bit data to process the data, and outputting the N-bit data through the data output port.

The N-bit data output to the data output port is 8-bit data, 5 bits of data are input to the data input port, and 3 bits of data are input to the port for state setting.

The above-mentioned input / output port is a parallel port or a serial port.

The cable 30 is connected to enable input and output of data between personal computers. The connectors 10 and 20 are connected to input / output ports of the personal computers PC1 to PC10 to one terminal thereof, and to one terminal of the cable 30 to the other terminal thereof.

The above-described connector 10 is a parallel connector in which both terminals consist of only male terminals.

The connector 20 described above is a serial connector in which both terminals are made of female terminals only.

The operation of the computer network apparatus according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings.

2 is a diagram showing an embodiment in which a computer communication network according to the present invention is used in a local area.

As shown, one embodiment of the connection status between personal computers for forming one local area network is shown. In the communication network according to the present invention, it can be seen that there is no distinction between the user side and the server side as in the conventional case of FIG.

The personal computer PC1 is connected to the personal computers PC2, PC3 and PC4, the PC2 is connected to the PC5 and the PC6, the PC3 and the PC7 and the PC8, and the PC4 is connected to the PC9 and the PC10. In addition, each of the printers P1 to P6 is connected to each of the PC5 to PC10.

3 is a diagram showing an embodiment in which a computer communication network according to the present invention is used at a long distance.

As shown, the personal computer PC1 of the first local area LA1 and the personal computer PC1 'of the second local area LA2 are connected to each other via a modem for communication between local area communication networks respectively formed in different local areas LA1 and LA2. Therefore, in the case of FIG. 3, mutual access to any of the personal computers PC1 to PC10 belonging to the first local area LA1 is possible.

As shown in Fig. 4 to Fig. 6, there is shown a configuration of a connector and a cable for connection between personal computers to implement a communication network according to the present invention.

First, Figure 4 is a view showing the connection state (A) and the pin configuration (B) of the connector and cable for parallel communication.

Referring to Fig. 4A, both of the parallel connectors 10 connected to the cable are male terminals.

Thus, the female terminal 33 of the cable 30 is connected to the male terminal of the connector 10, and the male terminal 35 of the cable 30 is connected to the personal computer. Three ports 13, 15, and 17 are connected to the parallel connector 10 and the cable 30, respectively, and eight pins corresponding to eight bits are allocated.

Specific embodiments thereof will be described later. Referring to FIG. 4B, the parallel connector 10 includes 25 pins, and the left pin and the right pin are 1-1, 2-14, 3-16, 4-17, and 5-15, respectively. , 6-13, 7-12, 8-10, 11-9, 12-7, 13-6, 14-2, 15-5, 16-3, 17-4, 25-25. The remaining pins are not used.

FIG. 5 is a view showing a connection state of a connector and a cable (FIG. 5A) and a pin connection state of the connector (FIG. 5B) used in the case of serial communication.

As shown in Fig. 5A, the serial connector 20 has female terminals on both sides connected to the cable. Thus, the male terminal 35 of the cable 30 is connected to the female terminal of the serial connector 30, and the female terminal 33 of the cable 30 is connected to the personal computer.

The serial connector 20 and the cable 30 are provided with three ports 13, 15, and 17, respectively, and eight pins corresponding to eight bits are allocated.

As shown in Fig. 5B, the serial connector 20 is composed of 25 pins, like the parallel connector 10, and the left pin and the right pin are 1-1, 2-3, and 3-, respectively. 2, 7-7 are connected.

Pins 4 and 5 on the left and right and pins 6, 8 and 20 are common. The remaining pins are not used.

FIG. 6 is a view showing an internal pin connection state of the connector used in FIGS. 4 and 5.

As shown, the twenty-five pins on the twenty-five female terminal 33 side of the male terminal 35 side are connected one-to-one with each other. In the case of performing parallel communication, the present invention as described above with reference to FIG. Three ports can be used for the parallel port of the personal computer used in the present invention. The three ports are divided into data output port, data input port, and status setting port.

In practical use, only one of the three ports is capable of parallel communication.

7 is a view showing a connection state between each of the ports and the connector used in parallel communication.

As shown, the addresses corresponding to each of the three ports described above, namely, a data output port, a data input port, and a state setting port, are 0378h (h means hexadecimal), 0397h, and 037Ah. In this case, the connection between bits (8 bits for each port) and pins is shown.

First, in the 0378h port for data output shown in Fig. 7A, the connection relation between bits and pins is 0-2, 1-3, 2-4, 3-5, 4-6, 5-7, 6-. Is set as 8 and 7-9. In the 0397h port for data input shown in Fig. 7B, the connection relationship between the bit and the pin is 0-X (X indicates that no connection is made), 1-X, 2-X, and 3-15. , 4-13, 5-12, 6-10 and 7-11.

Further, in the 037Ah port for state setting shown in Fig. 7C, the connection relation between the bit and the pin is 0-1, 1-14, 2-16, 3-17, 4-X, 5-X, 6 Set like -X and 7-X. Thus, as can be seen from FIGS. 4B and 7, when 8 bits of data are output from the 0378h port for data output of one personal computer, for example, the personal computer PC2 of FIG. Other personal computers, for example, the 597 and 3 bits respectively enter the 0397h port for data input and 037Ah port for status setting of the personal computer PC1 shown in FIG. Communication between the two takes place.

In the case of serial communication, a modem and a null modem are used. In the communication between the local areas shown in Fig. 3, a modem is used for communication between personal computers in the local area.

As described above, in the present invention, a printer is shared so that a user may use only a printer directly connected to a personal computer even if a plurality of printers are used in the related art. It is possible to use a local area network by connecting cables between a plurality of personal computers, thereby improving the operational efficiency of the local area network, and also maximizing the efficiency of computer communication by enabling mutual communication between different local areas. It provides the effect that it can be done.

Claims (5)

An input / output port consisting of a data output port, a data input port, and a status setting port is provided, and the N-bit data transmitted through the data output port of another personal computer is designated through the data input port and the status setting port. A plurality of personal computers receiving and dividing the data into bits of N, combining the received data into N-bit data to process data, and outputting N-bit data through the data output port; A cable connecting the personal computer to enable input and output of data; And a connector connected at one terminal to an input / output port of the personal computer, and at the other terminal to one terminal of the cable. The computer communication network device according to claim 1, wherein the input / output port is a parallel port. The computer communication network device according to claim 1, wherein the input / output port is a serial port. The computer network device according to claim 1, wherein the connector is a serial connector having both terminals of female terminals. The computer network device of claim 1, wherein the connector is a parallel connector having both terminals consisting of only male terminals.