KR19980039520A - How to prevent prank calls on your phone - Google Patents

Abstract

Disclosed is a method of preventing a prank call of a phone for allowing a user to record a talk time and a content of a prank call when a user detects that the call is a prank call. When the telephone detects an incoming signal and detects the incoming signal, it determines whether the hook switch is on or off, performs a call operation when the hook switch is on, and if the hook switch is off even after the set time has elapsed, Perform the auto answer function. If the phone is busy, a busy warning tone is output through the handset. If the phone is not busy, a call operation is performed. It is determined whether the user inputs the call recording key, and when the user inputs the call recording key, the call is recorded, and data about the time when the call is stored is stored. Then, it is determined whether the user has terminated the call, and if the call continues, the process returns to the step of performing the call operation. When the user detects that the prank call is recorded, the contents and time of the prank call can be recorded to prevent the prank call from recurring.

Description

How to prevent prank calls on your phone

The present invention relates to a method of preventing a prank call of a phone, and more particularly, to a method of preventing a prank call of a phone for allowing a user to record a talk time and a content of a prank call when a user detects a prank call.

The telephone is one of two-way (Duplex) communication devices that can communicate voice signals over long distances. Such a telephone can be classified into a corded telephone, a cordless telephone, etc. In recent years, a wired / wireless combined telephone which has a telephone line connected to one telephone line and can be conveniently used wirelessly through a plurality of portable devices is widely used. have.

In addition, with the development of the telephone, various functions are provided in the telephone. For example, many telephones have an alarm function that outputs a ringing tone at the scheduled time, and an automatic connection function that automatically dials an external contact when the call arrives. Is being released.

In recent years, since voice mails provide various voice services using telephones, youths and the like frequently use excessive telephones, especially because of the confidentiality of calls. The so-called prank calls for abusive language are on the rise.

However, in the conventional telephone, since there is no telephone having a function of recording the contents of the call while the user is in a call, the conventional telephone has a problem in that there is no method to cope with a prank call during the call.

The present invention was devised to solve the above problems, and an object of the present invention is that when the user detects that the phone is a prank call when the user operates a key installed separately in the phone, the call time and the contents of the prank call are automatically It provides a method of preventing prank calls of a phone which is stored in the PWM to prevent recurrence of evidence and prank calls in the future.

1 is a circuit diagram showing the configuration of a telephone according to an embodiment of the present invention.

2 is a flowchart illustrating an operation of a method for preventing mischief of a telephone according to an embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

10: signal supply unit 12: signal distribution unit

14 signal detection unit 16 hook switch detection unit

20: key input unit 30: display device

100: microcomputer 110: automatic tone generating unit

120: voice output circuit 130: voice signal storage unit

140: Speaker 150: Microphone

Q1, Q2: transistors C1, C2: capacitors

R1. R2: Resistor PD1: Photodiode

PT1: Phototransistor

In order to achieve the above object of the present invention, the present invention

Detecting whether an incoming signal is input from the telephone, and determining whether the hook switch is on or off when an incoming signal is detected;

Performing a call operation when the hook switch is in an on state, and performing an auto answering function when the hook switch is in an off state even after a set time elapses;

Outputting a busy warning tone through the handset if the telephone is busy, and performing a telephone call operation if the telephone is not busy;

Determining whether the user inputs the call recording key, recording the call content when the user inputs the call recording key, and storing data regarding a time at which the call content is stored; And,

The method determines whether the user has terminated the call, and if the call continues, returning to the step of performing the call operation.

According to the present invention, when the user detects that the prank call is a telephone call, the content and time of the prank call can be recorded and used as evidence later. Therefore, the recurrence of a prank call can be prevented.

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

1 is a circuit diagram showing the configuration of a telephone according to an embodiment of the present invention, Figure 2 is a flow chart for explaining the operation of the method for preventing mischief of the telephone according to an embodiment of the present invention.

As shown in FIG. 1, a telephone according to an embodiment of the present invention has a signal supply unit 10 for supplying a voice signal induced in a telephone to a communication terminal (a, b) branched from a public telecommunication network. Is connected. The signal supply unit 10 is configured by connecting a smoothing first capacitor C1 and a rectifying diode BD1 in parallel. At the communication terminals a and b, the signal distributor 12 branches. In the signal distributor 12, a smoothing second capacitor C2 and a first distribution resistor R1 are coupled in series, and a second distribution resistor R2 is connected to the smoothing second capacitor C2 and the first capacitor. It is branched between distribution resistors R1. The signal detector 14 is connected to one side of the signal distributor 12. The signal detector 14 includes a photodiode PD1 for indicating an incoming signal of a telephone and a phototransistor PT1 for detecting an operation of the photodiode PD1. The output terminal of the signal detection unit 14 is connected to the microcomputer 100 for controlling the operation of the various functional blocks constituting the telephone, and for controlling it when performing the answering machine function.

The output terminal of the microcomputer 100 is connected to the hook switch detecting unit 16 for detecting whether the user has separated the handset of the telephone from the main body. The hook switch detecting unit 16 has a first transistor having an emitter side connected to an output terminal of the rectifying diode BD1 of the signal supply unit 10 and a base side connected to an output terminal of the microcomputer 30. One end of the hook switch SW1 is connected to the collector side of Q1. A handset is connected to the ON side of the hook switch SW1, and a second transistor Q2 is connected to the OFF end to output the OFF state of the hook switch SW1 to the microcomputer 100.

In addition, one side of the microcomputer 100 receives a key of a user who wants to set an additional function such as an answering machine function, and receives a key corresponding to a unique number of a counterpart to be called. A display device 30 for visually displaying the number of operation state uses is connected.

The output terminal of the microcomputer 100 is connected to an automatic tone generator 110 which automatically receives a control signal and makes a call. A voice output circuit 120 for outputting various voice signals from a phone is connected to the output terminal of the microcomputer 100 and the automatic tone generator 110. The voice signal storage unit 130 is connected to an input terminal of the voice output circuit 120 to store a voice signal of a user input from the microphone 150 mounted on the phone.

A speaker 140 for outputting a voice signal to the outside is connected to an output terminal of the voice output circuit 120.

The detailed operation of the method for preventing mischief calls of the telephone according to the embodiment of the present invention configured as described above will be described with reference to FIG. 2.

The microcomputer 100 mounted on the telephone detects whether an incoming signal of the telephone is input through the communication terminals a and b (S1). That is, the voice signal induced at the communication terminals a and b through the public telephone communication network is smoothly rectified by the smoothing first capacitor C1 and the rectifying diode BD1 of the signal supply unit 10 mounted on the telephone. The signal distribution unit 12 and the hook switch detection unit 16 are applied to the emitter side of the first transistor Q1.

The voice signal induced by the signal distributor 12 is smoothed through the smoothing second capacitor C2, and distributed through the first and second distribution resistors R1 and R1 to detect the signal. The photodiode PD1 is operated. When the photodiode PD1 is operated, the phototransistor PT1 installed to be spaced apart from the photodiode PD1 by a predetermined distance is operated to input an incoming signal of a telephone to the microcomputer 100. Therefore, the microcomputer 100 detects that the call is received.

When the call is not received in the above step, the microcomputer 100 waits for the incoming call, and when the incoming signal is detected at the communication terminals a and b branched from the public telephone network, the microcomputer 100 outputs the voice output circuit 120. ) Outputs a control signal to the user through the speaker 120 outputs an alarm signal. At the same time, the microcomputer 100 outputs an operation signal to the base side of the first transistor Q1 of the hook switch detection unit 16. Accordingly, the audio signal input through the communication terminals a and b is output to the collector side of the first transistor Q1 of the hook switch detecting unit 16. Then, the microcomputer 100 receives the output of the hook switch detecting unit 16 and determines whether the hook switch SW1 is in an on state (S2).

That is, when the user does not pick up the handset mounted on the telephone, the hook switch SW1 is connected to the OFF terminal. At this time, the audio signal applied to the first transistor Q1 of the hook switch detecting unit 16 is input to the microcomputer 100 through the collector side of the second transistor Q2. As a result of the determination of the microcomputer 100, when the user does not pick up the handset mounted on the telephone to pass the set time, the control signal is output to the voice output circuit 120 to perform the answering mode. That is, the microcomputer 100 outputs the guide voice signal stored by the user through the microphone through the voice output circuit 120 to the counterpart through the speaker communication line. The other party listens to the guide voice signal and performs the answering mode in which the voice signal input through the communication line is stored in the storage unit (S3).

If the user picks up the handset of the telephone, the hook switch SW1 of the hook switch detecting unit 16 is connected to the ON terminal, and the emitter of the first transistor Q1 of the hook switch detecting unit 16 is connected. The voice signal applied to the side is output to the user through the handset mounted on the telephone. The user then makes a phone call through the handset.

The microcomputer 100 determines whether the telephone is busy when the hook switch SW1 of the telephone is connected to the ON terminal (S4).

In step S4, the microcomputer 100 determines whether the phone is in a call, and performs a busy mode for outputting a warning alert sound to the user through the handset through the voice output circuit 120 if the phone is in a call (S5). .

In step S4, the microcomputer 100 determines whether the phone is in a call, and if the phone is not in a call, the microcomputer 100 performs a call operation for transferring the voice signal to the communication terminals a and b through the handset. Perform (S6). The microcomputer 100 determines whether the user inputs a key to record the contents of the call through the key input unit 20 while the call operation is being performed (S7). If the user does not input the call recording key by operating the key input unit 20 during the call, the microcomputer 100 continues the call operation.

However, if a user manipulates the key input unit 20 to input a call recording key during a call, the microcomputer 100 outputs a control signal to the voice output circuit 120 to store the contents of the call in the voice signal storage unit 130. (S8). The microcomputer 100 stores the contents of the call in the voice signal storage unit 130, and stores data about the time when the user inputs the call recording key by operating the key input unit 20 (S9).

After storing the data on the call content and the talk time as described above, the microcomputer 100 determines whether the user hears the second warning sound output from the phone and puts down the handset mounted on the phone (S10). When the user hangs up, the hook switch SW1 of the hook switch detecting unit 16 is connected to the OFF terminal, and the hook switch detecting unit 16 inputs a predetermined signal to the microcomputer 100. Therefore, the microcomputer 100 determines whether the hook switch SW1 of the telephone is connected to the OFF terminal.

If the user hangs up the call, the user ends all the steps according to the prank call prevention method. If the user does not hang up the phone, the microcomputer 100 returns to step S6 to perform a call operation.

As described above, in the telephone according to an embodiment of the present invention, when the user detects that the user is a prank call and enters a call recording key, the phone stores the contents and the talk time to prevent the occurrence of the prank call. .

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited thereto, and modifications and improvements are possible without departing from the ordinary knowledge of those skilled in the art.

Claims (1)

Detecting whether an incoming signal is input from the telephone, and determining whether the hook switch is on or off when an incoming signal is detected; Performing a call operation when the hook switch is in an on state, and performing an auto answering function when the hook switch is in an off state even after a set time elapses; Outputting a busy warning tone through the handset if the telephone is busy, and performing a telephone call operation if the telephone is not busy; Determining whether the user inputs the call recording key, recording the call content when the user inputs the call recording key, and storing data regarding a time at which the call content is stored; And, Determining whether the user has terminated the call, and if the call continues, returning to the step of performing the call operation.