JPS60144050A - Data exchange - Google Patents

Abstract

PURPOSE:To improve remarkably the data exchange speed by adding a specific code to a transmission data outputted to a data but and allowing a control processor circuit to only command transmission data fetched to a transmission circuit without fetching transmission data. CONSTITUTION:The control processor 3 receiving the connection request calls an opposite station, and after a reception circuit No.21 is registered on a comparator circuit 73 in a transmission circuit 7n, the end of connection is informed to a call station. The transmission data is given from an input data line 11 at the same way as a connection request signal fetched to the processor 3, and a specific number (No.) to the reception circuit 21 receiving the transmission data, that is, 21, is given from the reception circuit 21. The transmission circuit 7n intercepts the data on a data bus 6 transmitted from the reception circuit by an input instruction of the control processor 3, the said No added to the data and the No of the reception circuit registered by a comparator circuit 73 are compared and only the coincident data is given to a gate circuit 74.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field to Which the Invention Pertains) The present invention relates to a data exchange device such as an Ego device (exchange device for meeting line for a ground station for communication).

(Conventional technology) FIG. 1 is a schematic diagram of a conventional 880 circuit.

This 880 circuit has input data lines 1. -1n are respectively connected to the receiving circuits 2I-2n, and output data lines 51-5n are respectively connected to the transmitting circuit 4. ~4n
and a control processor circuit 3 that controls the flow of data.
It consists of a data bus 6. Input data line 1. A calling station is connected to each of the terminals .about.1n. In addition, output data line 5. ~5n are connected to the other stations to which these calling stations are connected. The data signal transmitted by the calling station to the receiving circuits 21-2n via one of the input data lines 11-1n includes a connection request signal and transmission data. The connection request signal is a signal requesting that the calling station should be connected to the partner station, and includes the code of the partner station.

The transmission data is transmitted through the output data line 5. .about.5n to the other station of that station code. Receiving circuit 2. ~2n converts the received serial data signal into a parallel data signal and outputs it to the data bus 6. On the other hand, the transmitting circuits 4.about.4n convert the parallel data signals inputted from the data bus 6 into fully serial data signals and send the converted data signals to the output data lines 5. ~5n, respectively.

In this F3SO device, the telegraph exchange is generally carried out in the following procedure. The calling station sends the station code of the other station with which it wishes to communicate to the GSO device. Upon receiving this code, the ESC device searches for an output data line connected to the other station and sends a call (OALL) signal to the other station. When the called station responds, it notifies the calling station that the connection has been completed. After that, it becomes possible to communicate. The call is disconnected by a disconnection code from the calling station or called station (destination station).

FIG. 2 is a flowchart showing the processing procedure in the control processor circuit 3 of FIG.

The data signal entered through the input data line 1□ is sent to the receiving circuit 2. The command is received by the control processor 3 at P2 and input to the control processor 3 by the input command of the control processor 3. The control process P3 performs data analysis of the data signal. P
When the connection request is confirmed in Step 3, the destination station is searched for and registered in the memory in %P4, and the destination station is called. When a response is received, connection completion is notified to the calling station. The calling station starts transmitting data, and the transmitted data is sent to the human data line 1. similar to the connection request signal. Karamushi reception circuit 2 □ If it is input into the complete control processor circuit and judged as transmission data as a result of data analysis in sPB, output data line 5 registered in %P5
It searches for n and sends the transmission data to the corresponding transmission circuit 4n using sPB. Regarding the transmission data, the above operation is repeated for each piece of data. (The ↓ in the data table bus 6 in FIG. 1 indicates the flow of transmission data.) When the control process 3 analyzes the disconnection request at P3, it performs the disconnection process at P, and the input data line 1. The connection between the output data line 5n and the output data line 5n is disconnected.

In the ESO device described above, the transmission data is once input into the control process and the circuit, and then sent to the transmission circuit again.
It took a considerable amount of time to exchange data. Using a dedicated matrix in place of the control processor circuit 3 improves the speed of replacement, but has the disadvantage of being expensive and large.

These drawbacks of the conventional BSO device can no longer be avoided in other similar data exchange devices.

(Object of the Invention) An object of the present invention is to provide a data exchange device that has a high data exchange speed and is inexpensive.

(Structure of the Invention) The data exchange device according to the present invention includes a plurality of receiving circuits each connected to a human-powered data line and each receiving a data signal transmitted from a call station from the input data line, and a plurality of receiving circuits each connected to an output data line. a plurality of transmitting circuits each transmitting data from an output data line to a partner station;
a data bus that leads the output terminal of the receiving circuit to the input terminal of the transmitting circuit;
means for receiving No. e1 and identifying whether this data signal is a connection request signal requesting connection to the partner station or a signal of the transmission data to be transmitted to the partner station; If it is identified as such, it decodes the partner station specified by this connection request signal, and transmits the unique code of the receiving circuit to which this connection request signal was input to the transmitting circuit corresponding to this partner station. the receiving circuit adds the unique code to the transmission data output to the data bus, and the transmitting circuit adds a unique code matching the unique code received from the code transmitting means. The configuration is such that the transmission data is sent to the output data line.

(Principle of the Invention) Generally, the data bus is used for the purpose of the 0PU (Central Processing Unit) to import and output data from memory circuits, input/output control circuits, etc., and is connected to the data bus. It is difficult for circuits other than U to exchange data without interfering with the operation of the OPU, and requires complex control circuits and control procedures. In the present invention, by using the operation of the OPU to take in data, the data in the receiving circuit is taken in by the sending circuit, thereby realizing efficient data exchange without using a special data bus control circuit.

(Embodiment of the invention) 1. Complete receiver circuit 2. Suppose you enter. Then, the input data signal, which is serial data, is converted into parallel data and passed through the data bus 6 to the control processor 3. The control process (S3) decodes the communication partner selection signal before starting communication. Assuming that the relevant transmitting circuit is 7n, the number 21 of the receiving circuit 21 is notified to this 7n. Then, the control process, the circuit 3, sets the transmitting circuit 70 so that the transmitting circuit 7n can directly receive the transmission data fetched by the receiving circuit 21 in response to an input command to fetch data from the receiving circuit 2I. As a result, the receiving circuit 2. The transmission data taken in is taken into the transmission circuit 7n according to an input command from the control processor circuit 3. The control processor circuit 3 identifies whether the received data is exchange control data or transmission data in parallel with the transmission circuit 7n, ignores it if it is for transmission, and performs appropriate control if it is for control.
Manage call origination/reception and data flow.

FIG. 4 is a block diagram showing details of the transmitting circuit 7n of the embodiment shown in FIG. 3, and FIG. 5 is a flowchart showing the processing procedure in the control processor circuit 3 of the embodiment. In Figure 4,
Two circuits 73 and 74 surrounded by broken lines are circuits added to the conventional transmitting circuit. This embodiment will be explained in more detail with reference to these figures.

The control processor 3 that has received the connection request calls the other station, and upon receiving a response from the other station, sends the information of the receiving circuit No. 2 at pH to the corresponding transmitting circuit 7n (inside the second circuit 7n). After registering the receiving circuit No. 2 in the comparison circuit 73, the calling station is notified of the completion of the connection.Then,
The calling station begins data transmission. The transmission data is transmitted through the human data line 1. similar to the connection request signal. Receiving circuit 2
．． It is received by the control processor 3 and taken into the control processor 3 by the input command of the control processor 3. The reception circuit 21 assigns a unique number (No. 21) to the received transmission data, which is unique to the reception circuit 21 that received the transmission data. As mentioned above, the comparison circuit 73 of the transmitting circuit 7n includes the receiving circuit 2. I have already registered the NO. In this transmitting circuit 7n, the data on the data bus 6 taken out from the receiving circuit in response to an input command from the control processor 3 is intercepted, and the NO attached to this data is registered in the comparing circuit 73. The NO of the circuit is compared, and only the matching data is passed through the gate circuit 74. The data passing through the gate circuit 74 is set to the data transmission circuit 76 via the FI/FO memory 75. If the data is determined to be transmission data as a result of data analysis at P, the process ends as shown in FIG. For transmission data, the above operation is repeated for each piece of data. In the control processor circuit 3, when the disconnection request is analyzed for the data taken in by ps, the receiving circuit NO, which is set in the comparison circuit 73 of the transmitting circuit 7n, is determined by P, ff.
Delete 2 and perform the cutting process.

In the above description, it is assumed that the control process circuit 3 transmits the number of the receiving circuit to the transmitting circuit, and that the receiving circuit attaches its own number to the transmission data that it transmits. However, since there is a one-to-one correspondence between the receiving circuit and the human-powered data line,
The receiving circuit number in the above description is substantially the same even if t is replaced with the manual data line number. Therefore, it goes without saying that the present invention is applied not only to one of the numbers but also to both numbers.

(Effects of the Invention) In the present invention, as described above, the control process circuit does not input transmission data, but only instructs the transmission circuit which transmission data to input. Therefore, compared to conventional data exchange devices that once input transmission data into a control process circuit and then transfer the data to the transmission circuit again, the device of the present invention can significantly improve data exchange speed. . Naturally, since high-speed switching is possible, the number of lines that can be processed can be increased as well. Furthermore, since the device of the present invention controls the data flow using a control processor circuit (including the above-mentioned identification means and code transmission means), it is less expensive than conventional devices that use a dedicated matrix. It is small and has flexible specifications.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional data exchange device, FIG. 2 is a flowchart showing the control process of this conventional device and the processing procedure in the circuit, and FIG.
FIG. 4 is a detailed diagram showing the transmission circuit of this embodiment, and FIG. 5 is a flow chart showing the processing procedure in the control process circuit of the embodiment shown in FIG.

Claims (1)

[Claims] A plurality of receiving circuits to which human-powered data lines are connected respectively receive data signals transmitted from a calling station from the human-powered data lines, and a plurality of receiving circuits to which respective output data lines are connected and each transmit data to the other station from the output data lines. a transmitting circuit, a data bus that leads an output terminal of the receiving circuit to an input terminal of the transmitting circuit, and a connection request signal that receives the data signal via the data bus and requests connection to the partner station. or means for identifying whether the signal is the transmission data signal to be transmitted to the partner station;
When it is identified as a connection request signal by this identification means, the partner station specified by this connection request signal is decoded, and this connection request signal is input to the transmitting circuit corresponding to this partner station. means for transmitting a unique code of the receiving circuit, the receiving circuit attaching the unique code to the transmission data outputted to the data bus, and the transmitting circuit attaching the unique code to the transmission data output from the code transmitting means. A data exchange device that sends the transmission data of a unique code matching the unique code to the output data line.