KR20030084437A - voice processing board for transmitting and receiving in voice recording system - Google Patents

Abstract

PURPOSE: A voice processing board combined with receiving/transmitting functions of a voice recording system is provided to convert into a transmitting function when necessary while using a recording-only board in ordinary times, and to transmit a call, thereby reducing cost. CONSTITUTION: A line interface(100) selectively switches a connection with a subscriber terminal in order that a voice processing board operates in a recording mode or a transmitting mode. A line controller(200) controls a connected state of a line according to a switching state of the line interface(100). A voice recording and transmitting unit(500) records a voice message received through the line interface(100), and analyzes a received DTMF signal as analyzing each frequency if the line interface(100) operates in the recording mode. If the line interface(100) operates in the transmitting mode, the voice recording and transmitting unit(500) transmits a prestored voice message outside.

Description

Voice processing board for transmitting and receiving in voice recording system

The present invention relates to a voice processing board for both receiving and sending of a voice recording system.

Conventionally, a voice recording method using a voice recording system can be largely divided into a parallel connection method and a serial connection method.

1 is a block diagram of a system for recording voice through a serial recording method.

Referring to FIG. 1, a call path is connected between a first subscriber station 1 and a second subscriber station 4 via a telephone station 2 and a Private Automatic Branch eXchange (hereinafter referred to as PABX) 3. When formed and talking, a recording system 5 is connected in series between the PABX 3 and the second subscriber station 4.

FIG. 2 is a configuration diagram of a voice processing board mounted in the voice recording system 5 shown in FIG. 1. Referring to FIG. 2, the voice processing board includes a line interface unit 10, a line control unit 20, a main control unit 30, a PC interface unit 40, and a voice recording unit 50.

The line interface unit 10 may be connected to the telephone station 2 or PABX 3, K / P, etc., and is the end point of all recording connections.

The line controller 20 controls the call path and the relay of the line interface unit 100.

The main controller 30 may be composed of a CPU and a memory of the voice processing board and performs overall control.

The PC interface unit 40 is a communication connection path between the main control unit 30 and the PC and transmits all events generated from the voice processing board to the PC, and transmits a message transmitted from the PC application program to the main control unit 300. In charge of.

The voice recording unit 50 records voice messages received through the line interface unit 10, analyzes received dual tone multi frequency (DTMF) signals, and analyzes each frequency.

Let's look at the overall operation of the speech processing board configured as described above.

The line interface unit 10 monitors the connection state between the subscriber station phone or the telephone station or PABX, K / P, and the like, when a ring signal is generated or a hook-off signal of the subscriber phone is detected. send. The line control unit 20 controls the relay in the line interface unit 10 according to the detection signal received from the line interface unit 10 to control the communication path and the relay.

This overall procedure is controlled entirely by the CPU and memory in the main control unit 30, and all events generated in the voice processing board through the PC interface unit 40 are sent to the PC or receive a message transmitted from the PC application program. Thus, the procedure is performed accordingly.

On the other hand, when the hook-off signal of the subscriber is detected from the line interface unit 10 and a call path is formed, the voice recording unit 50 records the voice message received through the line interface unit 10 and analyzes the received DTMF signal. And analyze each frequency.

3 is a configuration diagram of a conventional line interface unit constituting the voice processing board of FIG. 2. Referring to FIG. 3, the conventional line interface unit 10 includes a primary protection unit 11 and a secondary protection unit 12, a loop relay unit 13, a hook-off detection unit 14, and a ring detection unit. (15), a transformer section (16), and a codec (17).

As shown, the tip or ring subscriber line of the exchange or PABX and K / P is connected to the tip or ring line of the voice processing board.

The primary protection unit 11 and the secondary protection unit 12 are overcurrent protection circuits for preventing overcurrent from flowing through the tip and the ring from the exchanger and damaging the board.

The loop relay unit 13 forms a loop circuit when the hook-off detection unit 14 detects the hook-off of the subscriber station in a state in which the ring detection unit 15 detects that the ring signal is transmitted from the exchange. So that the ring signal is no longer sent out from the exchange

The transformer unit 16 converts the voltage according to the winding difference of the coil in relation to the secondary protection unit 12 to protect the circuit.

The codec 17 converts an analog signal transmitted from an exchange into a digital voice signal or converts a digital voice signal into an analog voice signal and outputs the analog voice signal.

As illustrated in FIGS. 1 to 3, in the case of a recording system 5 having a voice processing board having the line interface unit 100 as shown in FIG. 3, the PABX 3 and the second subscriber station ( 4) In order to record voice using the serial connection method, the voice processing board must be fixed to receive only. If you want to use it as an outgoing call, you need to build a separate system. There is a problem that becomes large.

In this case, the use of the reception-only means that the second subscriber station 4 merely monitors the contents of the call when making a call with the first terminal 1 through the PABX 3. You can only monitor and record the call.

On the other hand, using exclusively for transmission means occupying a port allocated from the PABX 3 with respect to the second subscriber station 4 and transmitting the voice message stored in advance to another subscriber. The voice message transmitted includes a broadcast message for transmitting the same content to multiple subscribers at the same time.

That is, in order to record voice using the serial connection method between the PABX 3 and the second subscriber station 4, the voice processing board has to be fixed only for reception. As a result, a separate system has to be built up, which leads to a large waste of double costs.

The present invention has been made to solve the above-mentioned problems, it provides a voice processing board of the incoming and outgoing voice recording system of the voice recording system that can be used to switch to the outgoing call when the consumer wants to use the recording board in normal times Its purpose is to.

1 is a block diagram of a system for performing voice recording through a serial recording method.

2 is a configuration diagram of a voice processing board mounted on the voice recording system shown in FIG. 1.

3 is a block diagram of a conventional line interface unit constituting the voice processing board of FIG.

Figure 4 is a block diagram of a voice transmission board for receiving and transmitting in accordance with the present invention.

5 is a block diagram of a line interface unit constituting a voice signal receiving board for receiving and receiving shown in FIG.

<Description of Symbols for Main Parts of Drawings>

1: first terminal 2: telephone station

3: PABX4: second terminal

5: voice recording system 100: line interface unit

110: primary protection unit 120: secondary protection unit

130: loop relay unit 140: hook off detection unit

150 ring detection unit 160 transformer unit

170: codec 180: mode selection relay unit

190: modular terminal unit 200: line control unit

300: main control unit 400: PC interface unit

500: voice recording and sending unit

In order to achieve the above object, a voice processing board for receiving and transmitting a voice recording system according to the present invention includes: a line interface unit for selectively switching a connection with a subscriber station so that the voice processing board operates in a recording mode or a calling mode; A control unit for controlling the connection state of the line according to the switching state of the interface unit, and when the line interface operates in the recording mode, recording a voice message received through the line interface unit, analyzing the received DTMF signal, analyzing each frequency, When operating in the outgoing mode is configured to include a voice recording and transmitting unit for transmitting the pre-stored voice message to the outside.

Here, the line interface unit may include a mode selection relay unit for selecting a recording mode for recording a voice or a connection mode for interrupting a connection with a connected subscriber station and transmitting a voice message, and a subscriber according to a switching operation of the mode selection relay unit. It may be configured to include a modular terminal unit for performing the interface of the connection and disconnection with the terminal.

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

Figure 4 shows the configuration of the incoming and outgoing combined voice processing board mounted in the voice recording system according to the present invention. Referring to FIG. 4, the voice signal processing board for receiving and transmitting the voice recording system according to the present invention includes a line interface unit 100, a line control unit 200, a main control unit 300, a PC interface unit 400, Consists of a voice recording and sending unit 500.

The line interface unit 100 may be connected to a telephone station (2) or PABX (3), K / P, etc., and as a final end point of all recording connections, the voice interface board with the subscriber terminal to operate in the recording mode or the calling mode. Performs the function of selectively switching connections.

The line controller 200 controls the call path and the relay of the line interface unit 100 so that one voice processing board operates in a reception mode to perform recording, and if necessary, operates in a transmission mode to perform broadcast transmission. To control the connection of the line.

The main controller 300 may be configured of a CPU and a memory of the voice processing board and performs overall control.

The PC interface unit 400 is a communication connection path between the main controller 300 and the PC, and transmits all events generated from the voice processing board to the PC, and transmits a message transmitted from the PC application program to the main controller 300. In charge of.

When the line interface is operated in the recording mode, the voice recording and transmitting unit 500 records a voice message received through the line interface unit 100, analyzes the received DTMF signal, analyzes each frequency, and enters the calling mode. In operation, the stored voice message is transmitted to the outside.

Let's look at the overall operation of the incoming and outgoing voice processing board configured as described above.

The line interface unit 100 monitors the connection state between the subscriber station phone or the telephone station or PABX, K / P, and the like, when a ring signal is generated or a hook-off signal of the subscriber phone is detected. send. The line control unit 200 controls the relay in the line interface unit 100 according to the detection signal received from the line interface unit 100 to control the communication path and the relay.

This overall procedure is controlled entirely by the CPU and memory in the main control unit 300, and all events generated in the voice processing board through the PC interface unit 400 are sent to the PC or receive a message transmitted from the PC application program. Thus, the procedure is performed accordingly.

On the other hand, when the hook-off signal of the subscriber is detected from the line interface unit 100 and a call path is formed, the voice recording and transmitting unit 500 records the voice message received through the line interface unit 100 and receives the DTMF signal. It analyzes and analyzes each frequency.

5 is a block diagram of a line interface unit implemented in the voice signal processing board for receiving and receiving according to the present invention. Referring to FIG. 5, the line interface unit 100 of the voice transmission board for receiving and receiving according to the present invention includes a primary protection unit 110, a secondary protection unit 120, a loop relay unit 130, and a hook. The off detector 140, the ring detector 150, the transformer 160, the codec 170, the mode selection relay 180, and the modular terminal 190 are provided.

The primary protection unit 110 and the secondary protection unit 120 are overcurrent protection circuits for preventing overcurrent from flowing through the tip and the ring from the exchanger and damaging the board.

The loop relay unit 130 forms a loop circuit when the hook-off detection unit 140 detects the hook-off of the corresponding subscriber terminal in a state in which the ring detection unit 150 detects that the ring signal is transmitted from the exchange. So that the ring signal is no longer sent out from the exchange

The transformer unit 160 converts the voltage according to the winding difference of the coil in relation to the secondary protection unit 120 to protect the circuit.

The codec 170 converts an analog signal transmitted from an exchange into a digital voice signal or converts a digital voice signal into an analog voice signal and outputs the analog voice signal.

The mode selection relay unit 180 performs an operation for selecting an operation mode of the voice processing board. That is, an operation of selecting a reception-only mode for voice recording and a transmission mode for transmitting a message to the outside is performed.

The mode selection relay unit 180 is switched to a receive-only mode or an outgoing mode under the control of the line controller 200 shown in FIG. 2. That is, when operating in the reception-only mode, the reception operation to connect the call path of the second terminal 4 side, when operating in the outgoing-only mode, cut off the call path of the second terminal 4 side, The recording system itself forms a loop circuit and transmits prestored voice information to the subscriber who wants to transmit through the exchange.

The modular terminal unit 190 may use the modular RJ-11 as an interface for connecting the mode selection relay unit 180 and the second terminal 4 to each other.

In this way, the mode selection relay unit 180 and the modular terminal unit 190 are added to the voice processing board so that the serial connection recording can be easily connected by only a modular jack connection without an external device. By using the reception only during normal use, if the transmission operation is necessary to control the mode selection relay unit 180 to switch the mode to enable the transmission.

In the voice processing board configured as described above, when the recording mode is set, the line of the voice processing board is connected in parallel to the switching line or the subscriber line of PABX and K / P, and the ring detection unit detects the ring signal through the loop relay circuit simultaneously with the subscriber. While the ring signal stops, the hook-off detection unit 140 detects a loop current and starts recording when an event occurs.

On the other hand, when a control command for operating exclusively from the line control unit 200 is generated, the mode selection relay unit 180 cuts off the connection to the second terminal 4 and transmits the previously stored voice message through the exchange. Will be sent. The voice message may be separately stored in a memory for storing voice information of the recording system, or may be stored in a memory area of the voice recording and transmitting unit of the voice processing board.

According to the present invention, as a system for voice recording is implemented using a voice processing board having a mode selection relay and a modular terminal, the system can be configured as a single system without separately configuring a reception-only system and a transmission system. Can be reduced.

Claims (3)

In the voice processing board mounted in the voice recording system, A line interface unit for selectively switching a connection with a subscriber station so that the voice processing board operates in a recording mode or a calling mode; A control unit controlling a connection state of a line according to a switching state of the line interface unit; When the line interface operates in the recording mode, the voice message received through the line interface unit is recorded, the received DTMF signal is analyzed, and each frequency is analyzed. Receive call forwarding combined voice processing board of the voice recording system including a voice recording and transmitting unit to transmit. The method of claim 1, wherein the line interface unit, A mode selection relay unit for selecting a recording mode for recording a voice or a connection mode for cutting off a connection with a connected subscriber station and transmitting a voice message; A voice processing board for receiving and transmitting voice recording system, comprising a modular terminal unit configured to interface with a subscriber station and disconnection according to a switching operation of the mode selection relay unit. The method of claim 2, wherein the mode selection relay unit, When operating in the recording mode, it gradually operates to maintain the connection with the subscriber station, and when operating in the outgoing mode, the incoming and outgoing voice processing of the voice recording system of the voice recording system in which the contact is operated to block the connection to the subscriber station. board.