KR100323994B1 - Apparatus and method for removing on-hook signal sound of a telephone - Google Patents

Abstract

PURPOSE: An apparatus and a method for canceling a termination tone in a telephone are provided to cancel the termination tone generated when a handset of the telephone is hooked on the telephone after performing a telephone call and transmit various voice information. CONSTITUTION: A voice information storing unit(22) stores voice information of a message for informing the disconnection of a telephone call, or reproduces previously stored voice information. A switching unit(24) has a line, a hook switch, and a switching terminal for selecting connecting the voice information storing unit(22), and forms a call line or a voice information transmission line. A hook sensing unit(23) senses that a handset(16) is hooked on a certain position, and generates a hook sensing signal just before the hook switch is turned on. A control unit(20) controls the switching unit(24) according to the hook sensing signal, selectively opens and closes the call line or the voice information transmission line, and controls the reproducing/storing operation of the voice information storing unit(22).

Description

Apparatus and method for removing on-hook signal sound of a telephone}

The present invention is to prevent the termination signal (on-hook signal) generated by the hook switch of the phone to the other party, especially on-hook tones that can feel discomfort and disconnection when the handset is put down after the phone call The present invention relates to a device and a method for removing an end signal sound of a telephone that can be removed and replaced with various voice messages such as natural sounds, music, and guidance messages.

In general, the hook switch is operated by a hook button to move up and down due to the handset of the telephone, and is used to open and close the telephone circuit and line. When such a hook switch is open (on-hook), since a DC circuit is not formed between the exchanger and the telephone, a magnetic bell or a tone ringer may ring according to an incoming signal (ring signal). On the contrary, when the hook switch is closed (off-hook), a DC circuit is formed between the exchange and the telephone, so that an outgoing call can be made by dialing a desired number or an incoming call by an incoming call.

When an outgoing call or an incoming call is made by the above operation, and the hook switch is opened to end the call, a signal (on-hook tone; for example, a 'click' sound) indicating the opening of the hook switch is generated. The cutoff signal is generated on the sending side and the termination signal is heard on the receiving side.

In general, however, when you receive a call from a customer, you are kindly responding to messages such as 'Have a nice day', 'Thank you', 'Welcome you kindly', but you don't care much about hanging up. The click sound heard when the other party hangs up after the phone call has a problem such that the listener can have a sense of disconnection, as well as an unpleasant feeling in severe cases, and an improvement is required.

Therefore, the present invention was created to solve the above problems, the present invention eliminates the click generated when the telephone receiver hangs up after the telephone call, by replacing it with a variety of voice information, the phone call, It is an object of the present invention to provide an apparatus and method for eliminating end signal tones of a telephone that can relieve the discomfort and disconnection felt by a post-hook signal at the same time and actively draw the favor of customers.

According to an embodiment of the present invention for achieving the above object, voice information storage means for storing the voice information containing a message for notifying that the call is disconnected, or to reproduce the pre-stored voice information; Switching means including a line and a hook switch or a switching terminal for selectively connecting the line and the voice information storing means, and for forming a call line or a voice information transmitting line by the switching operation; Hook detecting means for monitoring the handset being lowered to a predetermined position and generating a hook detecting signal immediately before the hook switch is turned on; Control means for controlling the switching means in accordance with the hook detection signal to selectively open and close a call line or a voice information transmission line, and control a reproduction / storing operation of the voice information storage means; Delay means for delaying on-hook tones generated by a hook switch by a control signal of the control means for a predetermined time; And a voice information selecting means for allowing a user to select voice information stored in the voice information storing means.

In order to achieve the above object, another embodiment of the present invention includes the steps of: detecting whether the handset of the telephone is lowered to a predetermined position and detecting a state immediately before the hook switch is turned on; When the state immediately before the hook switch is detected, the switching terminal connected to the hook switch is opened from the line to block the termination signal (on-hook tones) from being sent out to the line, and at the same time, the voice message is reproduced to reproduce the line. Transmitting to the; When the handset is picked up or the specified time elapses while the voice message is being reproduced, a method for removing a terminating tone of a telephone, comprising the step of: connecting a switching terminal connected to a hook switch to a line again to form a call line. do.

1 is a block diagram showing an embodiment of the termination signal tones of the telephone according to the present invention

2 is an operation flowchart showing an embodiment of a method for removing the termination signal tone of the telephone according to the present invention.

<Explanation of symbols for the main parts of the drawings>

11 bridge diode 12 ring generating portion

13: speaker 14: hook switch

15: call part 16: handset

17: DTMF generating unit 18: key input unit

20: control unit 21: voice information selection unit

22: hook detection unit 23: voice information storage unit

24: switching unit 25: delay unit

Hereinafter, a device and a method for removing the terminating tone of a telephone according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a telephone circuit including a terminating signal tone removing device according to an embodiment of the present invention, and shows a configuration including a signal circuit, a call circuit, and a termination signal tone removing circuit of the telephone.

In the drawing, the signal circuit comprises: a ring generator 12 and a speaker 13 for detecting a ringing signal coming through a line (tip, ring) and outputting a ring sound; A hook switch 14, which is operated by a handset of a telephone, for opening and closing a telephone circuit and a line of the telephone, and a transistor Q1 interlocked with the hook switch 14; A part includes a key input unit 18 for dialing a telephone number and a DTMF generator 17 for generating a frequency signal (Dual Tone Multi Frequency) according to the key input.

The call circuit includes a bridge diode (11) for converting an AC signal input through a line into a direct current to form a direct current circuit between the call circuit and the line of the telephone; A part including a call path section 15 and a handset 16 for forming a call circuit between the handset, the handset, and a line, and when the external on-hook function is set, amplifies a predetermined level of the voice signal of the call section. It may further include an amplifier 19 for transmitting to the speaker 13 of the signal circuit.

In addition, the terminating ring tone removing circuit, which is an essential part of the present invention, includes a voice information storage unit 22 configured to store voice information including a message for notifying that the telephone is disconnected, or a voice memory chip capable of reproducing prestored voice information. ). This makes it possible to store or play back a voice message in place of the termination tone.

It further includes a hook detecting unit 23 for monitoring the handset being lowered to a predetermined position and generating a hook detecting signal immediately before the hook switch is turned on. In this case, the hook detection unit 23 is configured by mounting a sensor at a predetermined position of the hook switch, so that the hook detection unit 23 operates just before the handset is completely lowered to generate a hook detection signal. It is desirable to prevent the occurrence of the call so that it can detect the state just before the end of the call.

In addition, a switching terminal a connected to the line side, the hook switch 14 side, and the voice information storage unit 22, respectively, in order to selectively connect the line (tip line and ring line) and the hook switch or the line and the voice information storage means. (b) (c), the switching unit 24 for selectively forming a call line or voice information transmission line by the switching operation; And a controller 20 outputting a control signal to the switching unit 24 and the voice information storage unit 22 according to the hook detection signal. In particular, the switching terminal a is a switching terminal b on the hook switch 14 side of the telephone in the normal (on-hook state) of not using a telephone or in a busy state (off-hook state) of using a telephone. It is preferable to set so that it is connected to (). However, it is connected to the switching terminal c on the voice information storage section 22 immediately before the point of switching from the off-hook state to the on-hook state, and thereafter for several seconds (for example, reproduction of the voice message is completed. It is desirable that the state is maintained, and set to return to the original connection state (connected to the hook switch side) after a few seconds.

Although not shown in the drawing, the voice memory chip and the controller must be connected to a power supply means for continuously supplying a constant level of DC power to each of the power supply terminals.

The termination signal sound removing circuit may further include a delay unit 25 that operates by a control signal of the controller to delay an on-hook signal sound generated by a hook switch for a predetermined time. The voice information storage unit 21 may include a voice information selection unit 21 for storing a voice message in a storage unit or allowing a user to select and reproduce voice information already stored.

At this time, the voice message that can be recorded in the voice information storage unit 22 may be of various types, in particular, the sounds of nature (eg birds, water, waves, quiet scenery, etc.) Various voice messages such as music and announcements can be used.

In the drawing, the case is applied to a general telephone as an example, and this termination signal removing circuit can be realized using the same operation principle through a cellular phone and an internal exchange.

2 is an operation flowchart showing an embodiment of a method for removing a terminating ring tone of a telephone according to the present invention, in which a handset of a telephone is lowered to a predetermined position while in a call and detecting a state immediately before a hook switch is turned on (S211, S212); When the state immediately before the hook switch is detected, it connects the switching terminal connected to the hook switch side to the voice information storage unit, opens the hook switch from the line, and sends out an end signal tone (on-hook signal tone) to the line. Sending a voice message to the line at the same time while blocking (S213); If the handset is picked up during the playing of the voice message or a predetermined time elapses, the call line may be formed by connecting the switching terminal connected to the hook switch to the line again (S214-S216).

The operation of the present invention as described above is as follows.

First, the control unit 20 checks the current operating state of the hook switch 14, and checks whether or not the call is in operation (S211). At this time, since the hook switch 14 is in the off state during the call, the sensor output of the hook detection unit 23 does not appear, and the hook switch 14 is normally in the on state (when not using the telephone). Since the sensor output of the hook detection unit 23 is shown.

Therefore, the control unit 20 determines whether or not the hook detection signal output from the hook detection unit 23, and monitors whether the hook switch is lowered to a predetermined position (S212). When the hook detection signal is detected in this monitoring state, the control unit 20 outputs a driving signal for controlling the operations of the delay unit 25, the switching unit 24, and the voice information storage unit 22.

Here, the drive signal going out to the delay section 25 delays the termination signal sound to be generated by the hook switch 14 immediately afterwards for a predetermined time. The driving signal to the switching unit 24 is separated from the switching terminal a connected to the switching terminal b on the hook switch 14 side, and the switching terminal c on the audio information storage unit 22 side is removed. In addition, the driving signal to the voice information storage unit 22 is controlled to reproduce the voice message stored in the voice message (the predetermined message through the voice information selection unit 21).

Therefore, the voice message reproduced by the voice information storage section 22 is transmitted to the line through two switching terminals (a) and (c) in place of the termination signal sound generated by the hook switch.

Therefore, the on-hook tones that cause discomfort and disconnection when the phone is put down after the phone call are not heard by the other party. Various voice messages such as sound, music, guide message, etc. are delivered to the other party, thereby improving the quality of customer service.

On the other hand, when the handset is picked up or the specified time elapses while the voice message is being reproduced, the control unit 20 again blocks driving signals to the delay unit 25, the switching unit 24, and the voice information storage unit 22. The telephone line of the telephone is formed by removing the switching terminal a connected to the switching terminal c on the audio information storage section 22 and connecting it to the switching terminal b on the hook switch 14 side. Allows you to make phone calls normally.

According to the present invention as described above, by removing the 'click' sound when the handset is put down, and replaced by a voice message that customers can feel friendly, the discomfort that customers can feel over the phone can be eliminated at the source In addition, since internal employees have less need to directly check that the other party puts down the handset after talking with the customer, the productivity of the phone can be eliminated.

It also clarifies the completion of the call, eliminating the confusion and inconvenience that the occasional telephone connection state continues to pick up the handset, thereby improving communication efficiency and eliminating national waste.

Claims (5)

Voice information storage means for storing voice information containing a message for notifying that the call is disconnected or reproducing pre-stored voice information; Switching means including a line and a hook switch or a switching terminal for selectively connecting the line and the voice information storing means, and for forming a call line or a voice information transmitting line by the switching operation; Hook detecting means for monitoring the handset being lowered to a predetermined position and generating a hook detecting signal immediately before the hook switch is turned on; And a control means for controlling the switching means according to the hook detection signal to selectively open and close a call line or a voice information transmission line, and to control the reproduction / storing operation of the voice information storage means. Beep canceller. The method according to claim 1, further comprising delay means for delaying the on-hook tones generated by the hook switch for a predetermined time by operating by the control signal of the control means between the switching means and the hook switch. Termination sound cancellation device of the telephone. The apparatus of claim 1, further comprising voice information selecting means for allowing a user to select voice information stored in the voice information storing means. Monitoring whether the handset of the telephone is lowered to a predetermined position and detecting a state immediately before the hook switch is turned on; When the state immediately before the hook switch is detected, the switching terminal connected to the hook switch is opened from the line to block the termination signal (on-hook tones) from being sent out to the line, and at the same time, the voice message is reproduced to reproduce the line. End signal ring removal method of the phone comprising the step of transmitting to. 5. The method of claim 4, further comprising: forming a call line by reconnecting a switching terminal connected with a hook switch to a line when a handset is picked up or a predetermined time elapses while playing the voice message. How to remove terminating tone.