KR19980052725A - Emergency dialing method of telephone handset - Google Patents

Abstract

The present invention relates to an additional service of a telephone terminal, and more particularly, to an emergency dialing method of a telephone terminal, which is capable of making an emergency dialing call by a simple key operation when an emergency occurs.

The present invention provides a telephone terminal comprising a key input means provided with a plurality of buttons and a control means for executing a control operation for the entire apparatus such as a call function, an originating and answering function based on the key input of the key input means, A number setting step of setting a telephone number for emergency dialing, a key searching step of searching for a key input state of the key input means, a key input step of inputting an arbitrary key button, and driving a speakerphone when a predetermined key input is a predetermined number or more In addition to the control box is characterized in that it comprises a control step for controlling the call connection is made by sending a DTMF signal corresponding to the set phone number to the trunk line.

Therefore, according to the present invention, it is possible to realize an emergency dialing method of a telephone terminal which can be urgently operated by a simple key operation when an emergency occurs.

Description

Emergency dialing method of telephone handset

The present invention relates to an additional service of a telephone terminal, and more particularly, to an emergency dialing method of a telephone terminal, which is capable of making an emergency dialing call by a simple key operation when an emergency occurs.

The telephones, which are widely used throughout our living spaces, including homes and businesses, are the most basic necessities of modern people in the information age. Recently, the telephone function as a simple call device has been provided for this role. Increasingly, a variety of convenient functions have been added.

1 is a block diagram showing the internal configuration of a general telephone incorporating a microprocessor.

In the drawing, reference numeral 1 is a trunk line connecting port for connecting an external trunk line, 2 is a ring signal sensing unit for sensing a ring signal applied through the trunk line connecting port 1, and 3 is based on an applied ring signal. Ring generating unit for outputting a predetermined telephone ring to the ring, 4 is a loop (loop) circuit for performing the interface function of the overall communication signal input and output to and from the call path, the loop circuit (4) It consists of a trunk line connection detecting unit 4a for detecting connection with a power station and an interface circuit 4b for performing an interface function of signals between devices.

Further, reference numeral 5 denotes a handset, 6 denotes a call path connection unit for controlling whether or not to connect a call path according to a control signal from the microprocessor 12 to be described later, and 7 denotes a call path connection part for the loop circuit 4. (6) a network circuit for amplifying a signal applied from a counterpart terminal to a predetermined level and performing signal processing for side tone, etc., 8 as the user lifts or releases the handset 5; Hook detection unit for detecting the on or off state of the hook switch to be linked together.

In addition, reference numeral 9 is a memory for storing data necessary for normal operation of the telephone such as a speed dial function, and 10 is a DTMF signal applied through the trunk line connecting port 1, and receives a contracted code signal corresponding thereto. The DTMF receiving circuit 11, which is outputted, is a keypad provided with numeric keys and function keys used by the user to dial or input specific function execution commands.

On the other hand, reference numeral 12 is a microprocessor for controlling the overall operation of the device based on the signal detected by the communication line connection unit 6 and the trunk line connection detection unit 4a, etc., 13 is input through the keypad 11 The DTMF generation circuit outputs a DTMF (Dual Tone Multi-Frequency) signal corresponding to a predetermined key input according to a control command of the microprocessor 12.

That is, in the general telephone having the above-described configuration, when the user lifts the handset 5 to make a telephone call, the microprocessor recognizes the off state of the hook switch to be interlocked through the hook detection unit 8 so as to make the call. By turning on the connection part 6, the call path is connected. Then, when the telephone number is input through the keypad 11 by the user, the microprocessor 12 generates a signal corresponding to the key input through the DTMF generation circuit 13 to be transmitted through the trunk line. Therefore, in the telephone exchange which is not shown, a call is made by connecting to a telephone corresponding to a telephone number.

On the other hand, the above-mentioned process is not only to use the telephone as a telephone equipment, but also evolved to add new functions at the convenience of the user. It can be seen to add a device or program configuration that was not conventionally provided for the function.

Therefore, in the related art, a voice mail box or a call service function is added to the general telephone, thereby providing convenience to users.

However, when there is an emergency or emergency situation in your life, most people will use the phone as mentioned above when there is no one to ask for help, but the above-mentioned additional service does not help much.

Therefore, it is necessary to have a phone having a function for making an emergency call with a simple key operation to the subject that can be emergency in case of the above situation.

Accordingly, an object of the present invention is to provide an emergency dialing method of a telephone terminal which is capable of making an emergency dialing and making a call with a simple key operation when an emergency occurs.

1 is a block diagram showing the internal structure of a general telephone with a built-in microprocessor.

Figure 2 is a block diagram showing the configuration of a telephone terminal having an emergency dialing function according to an embodiment of the present invention.

FIG. 3 is an operation flowchart for explaining the operation of the apparatus of FIG. 2. FIG.

*** Explanation of symbols for the main parts of the drawing ***

1: trunk line connection port 2: ring signal detection unit

3: ring generator 4: loop circuit

4a: trunk line connection detecting unit 4b: interface circuit

5: handset 5a: handset

5b: handset 6: call path connection

7: network circuit 8: hook detection unit

9: memory 10: DTMF receiving circuit

11 keypad 12 microprocessor

13: DTMF generating circuit 20: key input unit

20a: Function Keys 20b: Numeric Keys

21: Program memory 22: Data memory

23: codec (C0DEC) 24: DSP (Digital Signal Processor)

25: speakerphone drive unit 26: voice input unit

26a: microphone 26b: microphone interface

27: audio output unit 27a: speaker

27b, BF1 to BF10: Buffer 27c: Speaker amplification interface

Emergency dialing method of the telephone terminal according to the present invention for achieving the above object is based on the key input means provided with a plurality of buttons and the key input of the key input means for the overall device such as call function, call origination and answering function A telephone terminal equipped with a control means for executing a control operation, comprising: a number setting step of setting a telephone number for emergency dialing, a key searching step of searching for a key input state of the key input means, a key for inputting an arbitrary key button In the input step, if any key input is more than a predetermined number of times, controlling the speakerphone and transmitting a DTMF signal corresponding to the set telephone number to the trunk line to control the call connection is made.

Therefore, according to the present invention having the above-described configuration, it is possible to make an emergency call through the speakerphone without lifting the handset by dialing by simple key operation when an emergency occurs.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

2 is a block diagram showing the configuration of a telephone terminal having an emergency dialing function for explaining the emergency dialing method of the telephone terminal according to an embodiment of the present invention.

In the drawings, the same reference numerals are given to the same parts as the configuration of FIG. 1, and detailed description thereof will be omitted.

In FIG. 2, reference numeral 20 is a key input unit for setting an emergency dialing function and inputting a phone number, and includes a function key 20a for setting the function and a numeric key 20b for inputting a phone number. Also, although not shown, a key matrix circuit for key searching is provided therein.

In addition, in FIG. 2, reference numeral 22 is a program storage unit for storing an operation program for driving an emergency dial and driving the speakerphone when a predetermined key button is input a predetermined number or more, and 22 denotes a telephone number for emergency dialing. A data memory for storing, 23 is a codec (CODEC: CODE-DECoder) for decoding or vice versa coded voice data, 24 is input and output through the codec 23 under the control of the microprocessor 30 to be described later It is a digital signal processor (DSP) for processing digital signals.

Further, reference numeral 25 denotes a speaker phone driving unit for processing a voice signal according to an input / output type, and reference numeral 26 denotes a voice through a microphone 26a installed on the surface of a telephone case without a user talking to the transmitter 5a of the handset 5. Voice input unit for inputting immediately. This voice input section 26 is composed of a microphone 26a for converting a user's voice into an electrical signal and a microphone interface circuit 26b for interfacing the signal output from the microphone 26a into the device.

On the other hand, reference numeral 27 is a voice output unit for directly outputting the voice signal transmitted from the trunk line through the speaker without passing through the handset 5b of the handset 5 according to the user's needs, this voice output unit 27 Is a speaker amplification interface circuit 27c for interfacing a voice signal applied from the speakerphone driver 25, a buffer 27b for amplifying a signal output from the interface circuit 27c, and an output from the buffer 27b. The speaker 27a converts and outputs the signal to a predetermined level of audible sound.

Further, reference numeral 30 denotes a microprocessor that searches for a key input state of the key input unit 20 and executes an operation program of the program memory 21 when an arbitrary key button is input a predetermined number or more, so that an emergency call can be made. to be.

Next, the operation of the apparatus having the above configuration will be described with reference to the operation flowchart shown in FIG.

First, the user sets the telephone number for emergency dialing through the key input unit 20. When the user inputs the function key 20a (step ST1), the microprocessor 30 enters the general telephone call mode. In addition to performing a self-mode to switch to the mode for emergency dialing (ST2 step).

Subsequently, when the telephone number to be urgently dialed is input by the user through the numeric key 20b (step ST3), the microprocessor 30 transmits signal data corresponding to the input telephone number to the data storage 22. To save (ST4 step).

However, if there is no input of the telephone number through the numeric key 20b, the microprocessor 30 controls the DSP 24 to transmit the busy tone and then terminates (ST5 step).

Thereafter, the microprocessor 30 storing the telephone number input through the key input unit 20 retrieves the key input state of the key input unit 20 (step ST6).

On the other hand, when the telephone number for emergency dialing is set and the key input search of the key input means is in progress, when there is a key button input, the microprocessor 30 determines the number of times for the key button (ST7). To step ST8).

Subsequently, if the number of times of input of one key button input by the user is less than three times, the DSP 24 controls the DSP 24 to transmit a busy tone, and when the input key button is inputted alternately to another button, a general telephone Normal control processing as in the function is performed.

In addition, when the number of times of input of one key button input by the user is three or more times, the microprocessor 30 executes an operation program stored in the program memory 21, wherein the call path connection unit ( 6) after the switch is turned on, the speakerphone driver 25 is controlled so that the call can be made through the voice input unit 26 and the voice output unit 27 without using the handset 5 (step ST9); In addition, the DTMF generating circuit 13 is controlled to transmit the DTMF signal corresponding to the telephone number stored in the data memory 22 to the trunk line (step ST10).

Thereafter, the microprocessor 30 executes normal control processing such as a function of a general telephone, and then terminates (ST11).

Therefore, the user can talk to the other party through the microphone 26a and the speaker 27a of the voice input / output unit with a simple key operation, thereby making it possible to respond to emergency situations.

That is, in the above embodiment, when an emergency situation occurs, if a key is input three or more times for any one of the key buttons provided in the key input unit 20, the speakerphone is driven and the telephone number to be contacted in case of an emergency situation is dialed. By doing so, an emergency call is made.

In addition, this invention is not limited to the above-mentioned embodiment, It can implement in a various deformation | transformation in the range which does not deviate from the technical summary of this invention.

That is, in the above embodiment, the present invention is applied to a telephone terminal, but can be applied to the facsimile apparatus used for general office equipment as well as to a mobile terminal and a mobile communication and wireless communication terminal capable of dialing.

As described above, according to the present invention, it is possible to realize an emergency dialing method of a telephone terminal which can be emergency-controlled by simple key operation in case of an emergency.

Claims (1)

A telephone terminal comprising a key input means provided with a plurality of buttons and control means for executing a control operation for the entire apparatus such as a call function, an originating and answering function based on the key input of the key input means; A number setting step of setting a phone number for emergency dialing, A key searching step of searching for a key input state of the key input means; A key input step of inputting an arbitrary key button, And controlling a speaker phone to drive the speakerphone when a predetermined key input is more than a predetermined number of times, and to transmit a DTMF signal corresponding to the set phone number to the trunk line to control the call connection. How to dial.