KR20000034454A - System for embodying telephone number guide service, and method therefor - Google Patents

Abstract

PURPOSE: A system for embodying a telephone number guide service, and a method therefor are provided so that a more convenient telephone number guide service can be provided to users. CONSTITUTION: A system for embodying a telephone number guide service includes the following units. An exchanger transmits a guide telephone number in the form of a dual ton multiple frequency(DTMF) signal, instead of voice. A telephone(20) translates the DTMF signal from the exchanger into a telephone number, stores the telephone number, and displays it in the form of character or voice, or automatically dial it according to the user's request. As a result, the user can be provided with the more convenient telephone guide service.

Description

A system for embodying a telephone number guidance service and method

The present invention relates to a system for implementing a telephone number guide service and a method thereof. In particular, an exchange transmits a guide number using a dual tone multiple frequency (DTMF) signal instead of voice, and a telephone user uses the DTMF signal in various forms. The present invention relates to a phone number guide service implementation system and a method for providing a more convenient number service.

Conventionally, when a user picks up a handset of a telephone and uses a numeric button provided on a keypad, he presses "114", that is, a telephone number that can be provided with a telephone number guide service, and calls a receptionist on the exchange side, and the receptionist is called. When the telephone number guidance of a specific place was requested, after a predetermined time, the telephone number of the requested place could be heard through a handset by voice (machine sound or voice of a receptionist). For example, if a user asks the receptionist for a phone number of Seoul Station, after a predetermined time, the user can hear a voice message saying, "The number you have inquired is seventy-three on three grilles" through the handset.

Therefore, the user memorized or memorized the phone number confirmed through the handset and attempted a phone call with the other party by pressing the number button corresponding to the phone number again guided.

As described above, since the exchange informs the telephone number of the place where the user is requested to receive the information by voice, users who are provided with the telephone number guide service from the exchange remember or memorize the guided telephone number one by one, and then use the number buttons of the telephone again. There is a problem that the dialing should be performed, the process is very cumbersome, causing inconvenience to the user.

The present invention has been made to solve the above problems, the exchange to transmit the guide telephone number by DTMF signal instead of voice, and the telephone is a request of the user in the state in which the DTMF signal received from the exchange is converted to a number and stored To provide a phone number guide service implementation system and method for providing a more convenient phone number guide service to the user by displaying the phone number in accordance with the letter, output by voice, or by performing an automatic dialing There is this.

In order to achieve the above object, a system for implementing a telephone number guide service according to the present invention includes: a switch for transmitting a telephone number of a place requested for guidance as a DTMF signal through a telephone line; The DTMF signal sensed through the telephone line is translated and stored as a number, and according to an external request, the stored telephone number is displayed as a letter, a voice, or automatically dialed.

The telephone may further include: a keypad having a telephone number display button for selecting a telephone number display function, a telephone number voice output button for selecting a telephone number voice output function, and a redial button; A DTMF generating unit for generating a DTMF signal corresponding to the button selected by the keypad and transmitting the DTMF signal to the exchange side through the telephone line; A DTMF detector for detecting a DTMF signal input through the telephone line; A memory unit for storing various kinds of information; A display unit for displaying various characters; A voice output unit which converts and outputs various types of information into a voice signal; A receiver for converting a voice signal output from the voice output unit into sound waves of an audible frequency; Translating the DTMF signal sensed by the DTMF detection unit into a number and storing it in the memory unit, and reading a telephone number from the memory unit according to a button selected from the keypad and outputting the telephone number to the display unit or the voice output unit, or the memory It is preferable that a central processing unit (CPU) is provided which reads out the telephone number from the unit and outputs it to the DTMF generator.

In addition, the telephone number guide service implementation method according to the present invention comprises the steps of: the exchange transmits the telephone number of the place where the information is requested by the DTMF signal over the telephone line; Storing, by the telephone, the DTMF signal sensed through the telephone line as a number; The telephone is characterized by consisting of the step of displaying the telephone number stored in the text, output by voice, or automatically dialed according to an external request.

1 is a schematic configuration diagram of a system for implementing a phone number guide service according to an embodiment of the present invention;

FIG. 2 is a flowchart of a telephone number guide service procedure shown in FIG.

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

10: telephone line 20: telephone

21: telephone circuit 22: keypad

23: DTMF generating unit 24: DTMF detecting unit

25: memory 26: LCD

27: audio output unit 28a: handset

28b: Handset 29: CPU

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

First, the DTMF scheme used in the telephone will be briefly described to help the understanding of the present invention.

When the user presses a numeric button provided on the keypad of the telephone to make a call to the other party, the DTMF generator of the telephone generates a multitone corresponding to the selected number and transmits it to the exchange side through the telephone line, at which time the tone generated by the DTMF generator is generated. Is 0, 1, 2,… as shown in Table 1 below. , 8, 9, #, * Frequency is determined corresponding to each.

1209 yen 1330 yen 1447 yen 697 Hz One 2 3 770 Hz 4 5 6 852 Hz 7 8 9 941 Hz * 0 #

As shown in Table 1, in the DTMF method, a DTMF signal obtained by adding the frequency signals of the high frequency bands (1209 Hz, 1336 Hz, 1477 Hz) and the low frequency bands (697 Hz, 770 Hz, 852 Hz, 941 Hz) is provided on the keypad of the telephone. Each time the key is pressed, it is sent out to the exchange via the telephone line. For example, if the button "5" is pressed, DTMF signals of 770Hz and 1336Hz are transmitted. If the button "0" is pressed, DTMF signals of 941Hz and 1336Hz are transmitted.

Therefore, the exchange learns the telephone number of the other party selected by the subscriber by detecting the DTMF signal input through the telephone line.

1 is a schematic configuration diagram of a system for implementing a phone number guide service according to an embodiment of the present invention, wherein the system for implementing a phone number guide service searches a database for a phone number of a place where a request is received for a DTMF corresponding thereto. An exchange (not shown) for transmitting a signal through the telephone line 10, and a DTMF signal detected through the telephone line 10 is translated into numbers and stored, and then the telephone number stored in accordance with an external request is converted into characters. It is comprised by the telephone 20 which displays, outputs with a voice, or automatically dials.

The telephone 20 includes a telephone circuit 21, a keypad 22, a DTMF generating unit 23, a DTMF detecting unit 24, a memory unit 25, and an LCD (Liquid Crystal Display) 26. And an audio output unit 27, a handset 28a, a handset 28b, and a CPU (Central Processing Unit) 29.

Although not illustrated in the drawing, the telephone circuit 21 includes a diode bridge for detecting a ring signal (exchanged by an exchange) input through a tip terminal and a ring terminal Ring of the telephone line 10, and a diode; It consists of a tone ringer which generates a buzzer when a ring signal is detected by the bridge, and a call path network that provides a voice call path through the telephone line 10.

The keypad 22 includes a number button 0-9, a # and * buttons, a phone number display button for selecting a phone number display function, a phone number voice output button for selecting a phone number voice output function, A redial button is provided.

The DTMF generator 23 generates a DTMF signal corresponding to the button selected by the keypad 22 and transmits the DTMF signal to the switchboard via the telephone circuit 21 and the telephone line 10.

The DTMF detecting unit 24 detects a DTMF signal input through the telephone line 10 and the telephone circuit 21.

The memory unit 25 stores various types of information, the LCD 26 displays various characters, and the voice output unit 27 converts the various kinds of information into voice signals and outputs them to the telephone circuit 21. 28a converts a voice signal input through the telephone circuit 21 into a sound wave of a frequency a user can hear, and the talker 28b converts the user's voice signal into an electrical signal and outputs it to the telephone circuit 21. do.

The CPU 29 translates the DTMF signal detected by the DTMF detection unit 24 into a number and stores it in the memory unit 25, and the telephone number guided by the switch according to the button selected by the keypad 22 is a letter. Read the phone number from the memory unit 25 so as to be displayed as an output to the LCD 26, or read the phone number from the memory unit 25 so that the phone number guided by the exchange is output to the voice output unit (27), or reads the telephone number from the memory unit 25 and outputs it to the DTMF generation unit 23 so that the telephone number guided by the switch is automatically dialed.

Referring to the flow chart shown in Figure 2 the process of implementing the phone number guide service in the system according to an embodiment of the present invention configured as described above in detail as follows.

FIG. 2 is a flowchart of a telephone number guide service procedure shown in FIG.

First, the user picks up the handsets 28a and 28b of the telephone 20 and presses "114" by using the number buttons provided on the keypad 22 to call the receptionist on the exchange side. When called, the telephone number guidance of a specific place is requested (S201). Here, the exchange searches the database for the telephone number of the place where the guide is requested according to the operator's operation and transmits the corresponding DTMF signal through the telephone line 10.

After the step S201, the DTMF detecting unit 24 of the telephone 20 detects a transmission DTMF signal of the exchange side input through the telephone line 10 and the telephone circuit 21 (S202).

After the step S202, the CPU 29 translates the DTMF signal detected by the DTMF detection unit 24 into a number and stores it in the memory unit 25 (S203).

After the step 203, the CPU 29 sequentially determines whether the user requests the display, dialing or voice output of the guided telephone number (S204, S206, S208).

As a result of the determination in step S204, when the user requests the display of the guided telephone number, that is, when the telephone number display button provided on the keypad 22 is selected by the user, the CPU 29 stores the number stored in the memory unit 25 ( The telephone number guided from the exchange: reads the guide telephone number) and outputs it to the LCD 26, and the LCD 26 displays the guide telephone number received from the CPU 29 in text (S205). Here, the user can directly check the telephone number guided from the exchange through the LCD (26).

In addition, if the user requests dialing using the guided phone number as a result of the determination in step S206, that is, when the redial button provided on the keypad 22 is selected by the user, the CPU 29 stores the number stored in the memory unit 25. Is read and output to the DTMF generating unit 23, and the DTMF generating unit 23 generates a DTMF signal corresponding to the number input from the CPU 29 to exchange the telephone line through the telephone circuit 21 and the telephone line 10. It is sent to the side. That is, the user dials automatically using the guide telephone number (S207). If a call is connected with the other party after a predetermined time elapses, the user may make a phone call with the other party. Here, since the user can automatically dial the telephone number guided by the switch by pressing only the redial button provided on the keypad 22, the user can call the other party (the telephone user guided the telephone number from the switch) very conveniently.

In addition, if the user requests the voice output of the guided telephone number as a result of the determination in step S208, that is, when the telephone number voice output button provided on the keypad 22 is selected by the user, the CPU 29 stores the memory unit 25. Reads the number (information telephone number) stored in the voice output unit 27, the voice output unit 27 converts the guide telephone number received from the CPU 29 into a voice signal to the telephone circuit 21 The receiver 28a outputs to the handset 28a, and the receiver 28a converts the voice signal received from the voice output unit 27 into sound waves of an audible frequency (S209). Here, the user can directly hear the telephone number guided from the exchange through the handset 28a.

As described above, the present invention provides a more convenient telephone number guide service for the user since the telephone number guided by the exchange is displayed in text, voice output, or auto dialing using the guided telephone number. It is effective to promote the user's convenience.

Claims (2)

An exchange unit for transmitting the telephone number of the place where the information is requested to be transmitted as a DTMF signal through a telephone line; And converts and stores the DTMF signal detected through the telephone line into a number, and then displays the stored telephone number as a letter, outputs it by voice, or automatically dials according to an external request. The phone is A keypad having a telephone number display button for selecting a telephone number display function, a telephone number voice output button for selecting a telephone number voice output function, and a redial button; A DTMF generating unit for generating a DTMF signal corresponding to the button selected by the keypad and transmitting the DTMF signal to the exchange side through the telephone line; A DTMF detector for detecting a DTMF signal input through the telephone line; A memory unit for storing various kinds of information; A display unit for displaying various characters; A voice output unit which converts and outputs various types of information into a voice signal; A receiver for converting a voice signal output from the voice output unit into sound waves of an audible frequency; Translating the DTMF signal sensed by the DTMF detection unit into a number and storing it in the memory unit, and reading a telephone number from the memory unit according to a button selected from the keypad and outputting the telephone number to the display unit or the voice output unit, or the memory And a CPU for reading the telephone number from the telephone unit and outputting the telephone number to the DTMF generating unit. Sending, by the exchange, a DTMF signal over the telephone line to the telephone number of the place where the reception is requested; Storing, by the telephone, the DTMF signal sensed through the telephone line as a number; And displaying, by the telephone, a stored telephone number in text, a voice output, or automatically dialing according to an external request.