KR940000556Y1 - Voice input-output device of voice information processing system - Google Patents

Abstract

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Description

Voice input / output device in voice information processing system

1 is a block diagram showing an example of a conventional voice information processing system.

2 is a block diagram showing an example of a voice input / output device in a conventional voice information processing system.

3 is a block diagram showing an embodiment of a voice input / output device in a voice information processing system according to the present invention.

* Explanation of symbols for main parts of the drawings

10: ring signal detection unit 20: relay drive unit

30: CPU 40: loop current bypass circuit

50: loop current detector 60: voice output network

PABX: Private Branch Exchange PSTN: Public Telephone Network

DB: database SR: surge arrester

FB: Ferrite Bit Vpp: Power Voltage

K ₁ , K ' ₁ , K ₂ : relay

The present invention relates to a voice input and output device, and more particularly to a voice input and output device in a voice information processing system which facilitates voice editing and improves voice quality by providing means for directly accessing a voice output network. will be.

In general, voice data supported by voice information processing system such as ARS (Audio Response System) or VMS (Voice Mailing System) is supported by public telephone or user's telephone using public telephone network (PSTN) or subscriber network (PABX). ), The sound quality is deteriorated and the voice input / output device is inconvenient.

1 is a block diagram showing an example of a conventional voice information processing system, in which digital information stored in a database (DB) is played as an analog signal sound (voice) through a commercially available telephone, or the voice is stored and replayed. It is a communication device that enables listening.

2 is a block diagram showing an example of a voice input / output device in a conventional voice information processing system. When the voice information processing system is called from a public telephone network or a subscriber premises network, as shown in FIG. 2, the ring signal detection unit 10 receives the call signal from the T (Tip signal) terminal and the R (Ring signal) terminal which are the telephone lines of the exchange side. When the signal is input to the CPU 30, the signal passes through the relay driver 20, the noise is removed through the ferrite bit (FB), and the relay K ₁ is switched to a response state so as to output the voice output. Outputs signal voice to the network.

Hereinafter, a conventional voice input / output device will be described in detail with reference to FIG. 2.

In the voice signal flowing into the T signal terminal, which is the telephone line of the exchange side, excessive current is suppressed through the surge arrester SR, and the T signal and the R signal are inputted to the ring signal detector 10 to detect the call signal. When the call signal is stored in the CPU 30, the signal drives the relay driver 20 and passes through the ferrite bit FB to remove unnecessary noise. This signal is a voice through a voice output network 60 is converted into a ca contact state to the voice signal coming into the exchange side of the telephone line via a loop current bypass circuit 40 and drives the cb contact state relay K ₁ in the normal state Is output. After the above process, relay K ₁ is automatically turned off and converted to the original cb contact state. To record and listen to the voice signal inputted by the conventional voice input / output device, the voice information system is called whenever desired and the call signal is detected. Then, the relay K ₁ is driven through the CPU 30 to switch to the ca contact point. As the next voice output is made, it is troublesome to call the voice information processing system whenever necessary, and it is difficult to prevent the degradation of the recording quality due to the line loss and the line noise generated in the line during signal transmission.

Accordingly, the present invention has been made to solve the above-mentioned problems, and it is possible to conveniently edit the voice by preventing the line loss and the line noise in the conventional apparatus, and to improve the quality of the voice service and to reduce the call cost. do.

In order to achieve the above object, the present invention provides a CPU for controlling the operation of the voice input and output device, a ring receiving T and R signals through an exchange telephone line, and detecting a ring signal to detect an output signal to the CPU. A signal detecting unit, a relay unit for receiving a T and R signal through the switch-side telephone line and a control signal to another input terminal to selectively perform a voice service or a normal call from a voice output network in which voice guidance data is stored; A loop current detector configured to receive a T 'and R' signal through a telephone line from an additional telephone of a general user, detect a hook on / off state of the telephone, and transmit a detection signal to the CPU; Controlling the switching operation of the relay unit in accordance with the output signal of the ring signal detector or loop current detector supplied through It characterized in that it comprises a relay driver.

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

3 is a block diagram showing an embodiment of a voice input / output device in the voice information processing system according to the present invention.

When the voice information processing system is in the normal operation state, relays K ₁ and K ' ₁ are in the ca contact state, and relay K ₂ is in the cb contact state. When the relay K1 is in a normal state, it is a ca contact state, but receives a T signal from the exchange side and is switched by a control signal Vpp supplied from the relay driver 20 to become a cb contact state, thereby selectively outputting a T signal to thereby output a resistor R. ₂ to limit the transient current. The relay K ' ₁ is also in the ca contact state when it is in a normal state, but receives the R signal from the exchange side and is switched by the control signal Vpp supplied from the relay driver 20 to become the cb contact state to selectively select the R signal. It is output and has a ferrite bit (FB) to remove unnecessary noise from the signal. The relay K ₂ is in the cb contact state when it is in a normal state, but is coupled to the output terminal of the relay K ₁ and switched by the control signal V'pp supplied from the relay driver 20 to become the ca contact state, and thus R ' _1. Transient voltage generated at the relay contact is prevented while passing through and C ' ₁ , and is output to the voice output network 60 through the transformer for normal voice service. At the end of service, K ₂ is restored to the original cb and then to the call.

On the other hand, when a general telephone connected to the voice input / output device hooks off for input / output of voice, the loop current detector 50 monitors and detects the hook on / off state and stores it in the CPU 30. The signal drives the relay driver 20 and, via the ferrite bit FB, the relay K ₁ becomes the cb contact state and the relay K ₂ remains the ca contact state. Then, the relay outputs the signal to the voice output network 60 by driving the relay K ₂ only with the signal hooked off at the terminals T 'and R' without calling the voice information processing system. When a given service is terminated through the voice input / output device, the relay K ₁ is restored to the ca contact state, and K ₂ is restored to the cb contact state to maintain the initial communication path.

As described above, in the present design, voice input / output is possible only by a general user's telephone without a signal flowing into the telephone line of the switchboard, thereby eliminating line loss and line noise generated during the transmission of the voice signal. It is effective in improving the quality of voice.

Claims (2)

A voice input / output device comprising: a CPU (30) for controlling an operation of the system when a general user calls a voice information processing system; The ring signal detector 10 detects an output signal to the CPU 30 by receiving T and R signals through the telephone line of the exchange side, and receives the T and R signals through the telephone line of the exchange side. T 'and R' are provided through a relay unit which receives a control signal from an input terminal and selectively operates a voice service or a normal call from a voice output network in which voice guidance data is stored, and a telephone line from an additional user telephone. A loop current detector 50 which receives a signal and detects a hook on / off state of the ordinary telephone and transmits the detected signal to the CPU 30, and the ring signal detector supplied through the CPU 30 ( 10) or voice information processing, characterized in that it comprises a relay driver 20 for controlling the switching operation of the relay unit in accordance with the output signal of the loop current detector 50. Audio input and output device in the system. The resistor R of claim 1, wherein the relay unit receives the T signal and performs a switching operation by a control signal Vpp supplied from the relay driver 20 to selectively output the T signal and limit a transient current. _2, the relay K ₁ with a and, when supplied to the R signal by a switching operation by the control signal (Vpp) which is supplied from the relay drive unit 20 and outputs the R signal, selectively removes unwanted noise in the signal The relay K by a relay K ' ₁ having a ferrite bit FB, and a switching operation by a control signal V'pp supplied from the relay driver 20 coupled to an output terminal of the relay K ₁ . in the audio information processing system, characterized in that by selectively outputting the output signal of the _first relay having a K ₂ for supplying to the input end of the voice input and voice output network Output device.