KR920005581B1 - Character input telephone system - Google Patents

Abstract

In the system a telephone (1) is provided to transmit a Dual Tone Multi-Frequency (DTMF) signalby utilising a character panel including several buttons (8) which are orderly arranged therein. An exchange (2) is provided to switch the DTMF signal. A DTMF receiver apparatus (3) converts the DTMF signal into a corresponding digital signal. A key word storage apparatus (5) includes a service name file unit for storing a service name file, and a key word dictionary unit for storing a key word dictionary. A text information storage apparatus (5) stores several information data corresponding to each service name. A central processor unit (6) converts a digital signal outputted from the DTMF receiver apparatus into an input character string to match the input character string with the key words stored inthe key word storage apparatus in order to provide information data.

Description

Text input telephone system and its text input method

1 is a character input telephone system according to the present invention.

Figure 2a is a character dial for character input of a conventional telephone.

Figure 2b is a character input plate of the telephone according to the present invention.

Figure 3 is a flow chart for explaining the operation of the telephone system for text input according to the present invention.

* Explanation of symbols for main parts of the drawings

1 telephone 2 switchboard

3: DTMF receiver 4: Telephone line matching device

5: data storage unit 6: central control unit

7: Voice output device 8: Character input plate

The present invention relates to a character input switching system and a character input method thereof, and in particular, a character input telephone system which enables character input in a voice information service using a code signal corresponding to Korean or English by combining DTMF signals; It is about his character input method.

In general, when receiving a service from the voice information system, it is inconvenient to first call the system and then know all the service numbers of each stage until accessing the desired service. For example, when a securities company wants to know the stock information of a company called "A", it must call the company's voice information system and remember the number of the desired service and the code of the company "A". If you find the company code in the book in a number of ways, such as only after receiving the service.

According to the present invention, in the case of the above, the user can directly enter a company name of "A" with a button-type telephone to provide a variety of services such as direct access to a desired service. The purpose is to enable the transmission and reception of the data.

According to the present invention, according to the contents of the telephone line matching device, the DMF receiver, and the DTMF receiver, which perform the line condition monitoring and protect the telephone network from overvoltage, the contents of the text database are searched for by the external computer or itself. And a voice output device which converts voice data information to a voice synthesis device and converts voice data sent from the central control device into a voice signal and outputs the voice signal to the telephone via the telephone line matching device and the switch. do.

According to another aspect of the present invention, determining whether the input DTMF signal is an instruction, temporarily storing the input DTMF signal if not completed, and splitting the input contents into two pieces when the input is completed. Finding the corresponding character, determining whether the found character is Hangul, performing Hangul Hangul writing in case of Hangul, storing it in the buffer as it is, and determining whether the conversion is complete, In this case, the processed input is sent to the central controller.

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

1 is a character input telephone system according to the present invention, in which a DTMF signal input from a subscriber telephone 1 is supplied to a telephone line matching device 4 via an exchange 2, in which the ring 4 receives a ring. It monitors the state of the telephone line such as Ringing Signal, Dial Tone, Busy Tone, and protects the system by blocking the high voltage caused by lightning.

The telephone line matching device 4 is also connected to the central control device 6 via the DTMF (Dual Tone Multy Frequency) receiving device 3 and the audio output device 7, respectively. Is connected to the data storage 5. The DTMF receiver 3 receives the DTMF signal input by the user, converts the number corresponding to the signal into a 4-bit digital signal, converts it into English or Korean or English, and sends it to the central controller 6 and sends the center. The control device 6 converts the response of the contents sent from the DTMF receiving device 3 into the voice data by searching the data storage 5 for transmission to voice data. The voice data from the central controller 6 is converted into a voice signal by the voice output device 7 and then sent to the switcher 1 via the telephone line matching device 4 and the switch 2 so that the user Allows you to listen to the voice information you want.

FIG. 2A is a text input character board of a conventional telephone, and a method of inputting a number of letters to a button and pressing the number of times corresponding to a desired number of letters. For example, "CEG" is input as "111223". In this method, because the same button is kept pressed, the input is inconvenient and the time interval between the presses is easy to be uneven, so reception errors are likely to occur and the input is ambiguous when received.

For example, since "ac", "ca", "bb", and the like are input identically ("1111"), there is a problem in distinguishing at the receiving side.

The present invention is to solve this problem, and as shown in Figure 2b, after displaying the character array and then press the combination of two adjacent buttons in turn, one button by pressing the near button first and the far button later in the displayed character Enter.

For example, to enter the text "school", you can press the button in the sequence "95 23 12 12 87" to "ㅎ ㅏ ㄱ ㄱ ㅛ". This can easily accommodate the English and Korean, reduce the hassle of pressing the same button several times, and because the two numbers per character must be entered, the ambiguity at the reception described in Figure 2b does not occur.

Such a dial can be made separately and attached to a telephone, or printed directly on the telephone.

3 is a flow chart for explaining the operation of the character input telephone system according to the present invention, in which the DTMF signal receiving operation is performed in step 101 from the start signal and proceeds to step 102. In step 102, if the code signal corresponding to Korean or English is a complete command or not, the process proceeds to step 103, in which step, the central control unit 6 is notified of the command. Returning to step 101 again, if NO, the process proceeds to step 105, and if yes, depending on whether the content of step 101 is "end", the process proceeds to step 106 and the inputted content is returned. After two segments, find the corresponding character in the Hangul and English code conversion finder (not shown) and proceed to step 107. If no, proceed to step 104 and proceed to the buffer (not shown in the drawing). Return to step 101 after storing. In step 107, if the answer is "Yes", the process proceeds to step 108, and after the Hangul writing, the process proceeds to step 109. If the answer is no, the process proceeds directly to step 109. After storing this in a buffer (not shown), the process proceeds to step 110 to determine whether all stored contents have been converted. If YES, the process proceeds to step 111 and the inputted content is transferred to the central controller 6. Notify and return to step 101, if no, return to step 106 to continue the conversion. In this flowchart, a step of outputting audio is omitted for convenience.

As described above, according to the present invention, there is an excellent effect of directly receiving a voice information service by combining Korean or English displayed on a telephone button without a voice service item number.

Claims (2)

In the information guide system, a license plate 8 attached to the telephone 1 and arranged to transmit a specific text signal in accordance with the pressing order by combining any two adjacent buttons and the number plate 8 sent out from the license plate 8; A telephone line matching device 4 configured so that the signal protects the telephone network from line condition monitoring performance and overvoltage via the switch 2, and a DTMF which converts the DTMF signal inputted from the telephone line matching device 4 into a digital signal. A central control unit 6 for retrieving and transmitting information corresponding thereto from the data storage unit 5 according to a digital signal connected to and received from the receiving device 3 and the DTMF receiving device 3; Voice output which converts a data output signal connected and input from the control device 6 into a voice signal and outputs it to the telephone 1 via the telephone line matching device 4 and the switch 2. Text entry phone system, characterized in that the device consisting of (7). A character input method of an information guide system, comprising: transmitting a specific character signal to a receiving apparatus in a sequence of pressing two adjacent adjacent buttons by an operator, and determining whether the transmitted DTMF signal is a complete command and performing a central command. And a step of notifying the control device 6, finding the command in the Hangul and English code conversion find table, and performing the Hangul collecting operation in case of Hangul and storing it in a buffer as it is in English. Character input method of the telephone system for character input.

Images