KR19980051710A - Data transfer device of electronic switch - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data redundancy device for an all-electronic exchange suitable for allowing data transfer between a transmitting unit and a receiving unit operating at different clocks in the all-electronic exchange. Although the production cost increases due to the implementation of data transmission by using the pippo 20, the present invention simplifies the control logic by using a low-cost buffer 120 instead of the expensive pip 20 according to the prior art. The above-described drawbacks can be improved by enabling economics by enabling data transmission.

Description

Data transfer device of electronic switch

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission apparatus of an all-electronic exchange, and more particularly, to data duplication of an all-electronic exchange suitable for allowing data transmission between a transmitting unit and a receiving unit operating at different clocks. Relates to a device.

In this regard, Figure 1 is a block diagram showing an embodiment of a data transmission device of the electronic switch according to the prior art, the first transmission unit 10 for transmitting data, the data from the transmission unit 10 first Controls and transmits the PPO 20 that inputs and outputs a first-in first-out (FIFO) method, the receiver 30 that receives the output of the PIO 20, the transmitter 10, and the PPO 20. Control the transmission control unit 40, the PPO 20 and the receiver 30 to transmit the data from the unit 10 to the target 20 so that the data is transmitted from the target 20 to the receiver 30 The reception control unit 50 is formed.

Referring to the prior art made in this way in detail as follows.

First, the transmission control unit 40 applies a start signal to the transmission unit 10 so that the transmission unit 10 outputs the corresponding data. At this time, the PPO 20 receives a start signal from the transmission control unit 40. The output of the transmission unit 10 is accepted on a first-in, first-out basis.

That is, the PPO 20 outputs data in a first-in, first-out manner according to the start signal of the reception controller 50. In this case, the receiver 30 receives the start signal of the reception controller 50 and receives data from the PPO 20. Receive

However, in this conventional technique, since the data transmission is implemented by using a relatively expensive bag 20, there is a drawback that the production cost increases.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and it is economical by using a low-cost buffer instead of the expensive wrapper 20 according to the prior art to simplify the control logic to realize data transmission. It is an object of the present invention to provide a data transmission device of an electronic switching system capable of planning.

In order to achieve the above object, the present invention provides a transmitter for transmitting data, a buffer for temporarily storing and outputting data from a transmitter, a receiver for receiving and storing output from a buffer, and monitoring and transmitting the transmitter. When the start signal is output to transmit additional data, a transfer read signal is applied to the transmitter to enable the transmitter to output data, and the buffer is enabled to allow the buffer to apply an output from the transmitter. Receiving and temporarily stored and output to the receiving unit, the receiving unit is characterized in that it comprises a control unit for detecting whether or not the end of the data received from the receiving end when the end signal according to the completion of the data reception from the buffer.

1 is a block diagram illustrating an embodiment of a data transmission apparatus of an electronic switching system according to the related art.

2 is a block diagram showing an embodiment of a data transmission apparatus of an electronic switching system according to the present invention.

Explanation of symbols for main parts of the drawings

110: transmission unit 120: buffer

130: receiver 140: controller

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, an embodiment of the present invention for achieving the above object in detail.

Referring to FIG. 2, FIG. 2 is a block diagram showing an embodiment of a data transmission apparatus of an electronic switching system according to the present invention. The transmission unit 110 for transmitting data and the data from the transmission unit 110 described above. Buffer 120 for temporarily storing and outputting the signal, receiving unit 130 for receiving and storing the output from the above-described buffer 120, and transmitting unit 110 for monitoring the aforementioned transmission unit 110. ) Outputs a start signal to transmit data, applies a transmission read signal to the above-described transmission unit 110 so that the above-described transmission unit 110 outputs data, and checks the above-mentioned buffer 120. Able to enable the above-mentioned buffer 120 to receive the output from the above-mentioned transmission unit 110 temporarily stored and output to the above-described receiving unit 130, the above-mentioned receiving unit 130 is the buffer ( Termination upon receipt of data from 120) Is received from the receiving unit 130 described above a call is made by a control unit 140 for detecting whether or not the data end of the above-described receiving unit 130. The

The present invention made in this way is described in detail as follows.

First, the transmitter 110 transmits data for data duplication to the buffer 120 under the control of the controller 140, and the buffer 120 is also controlled by the controller 140. Receives data from the temporarily stored and then output to the receiving unit 130, the receiving unit 130 receives the output from the above-described buffer 120 to store.

That is, the controller 140 monitors the transmitter 110 and applies the transmission lead signal to the transmitter 110 when the transmitter 110 outputs a start signal for transmitting data. The above-described transmission unit 110 outputs data, and the above-mentioned buffer 120 is enabled so that the above-mentioned buffer 120 receives the output from the above-described transmission unit 110 and temporarily stores the data. The receiving unit 130 is outputted to the above-described receiving unit 130, and when the above-mentioned receiving unit 130 completes the reception of the data from the above-mentioned buffer 120, the corresponding end signal is received from the above-mentioned receiving unit 130. ) Detects whether data is terminated.

At this time, the controller 140 receives the transmission start signal from the transmitter 110 and opens the buffer 120. The controller 140 determines whether the data is duplicated by determining the old or new data and the buffer 120. Open the receiving end of the and transmits the data to the receiving unit 130, the receiving unit 130 receives the data reception end signal and sets the new / old bit again (setting).

As described above, the present invention uses a low-cost buffer 120 instead of the expensive wrapper 20 according to the prior art to simplify the control logic to realize data transmission, thereby achieving economical efficiency. This has the effect of increasing.

Claims (1)

A transmission unit for transmitting data; A buffer which receives data from the transmission unit and temporarily stores and outputs the data; A receiving unit which receives and outputs the output from the buffer; When the transmitter monitors the transmitter and the transmitter outputs a start signal for transmitting data, the transmitter applies a transmission lead signal to the transmitter to output the data, and the buffer is enabled so that the buffer transmits the data. Receiving the output from the unit to temporarily store and output to the receiving unit, and the receiving unit receives the end signal according to the completion signal received from the receiving unit upon completion of data reception from the buffer to detect whether or not the end of the data of the receiving unit Data transmission device of the electronic switchboard including a control unit.