JPS63116543A - telephone terminal equipment - Google Patents

Abstract

PURPOSE:To have an opponent input the character such as an alphabet, KANA character (Japanese syllabary) and KANJI (Chinese character) by providing a hand-written character recognizing means at a telephone terminal device which can simultaneously communicate a sound and a picture drawing. CONSTITUTION:The handwriting information of a handwritten character written from a terminal 46 is transferred from a line control unit 23 through a multiple separating circuit 24 to a MODEM 25, and sent to a computer 26 for system control. The handwriting information is character-recognized by a handwritten character-recognizing software 28 integrated into a computer 26 for a system control and fetched as data. Thus, an alphabet, KANA character, KANJI, figure, etc., are prepared for as a candidate character in an automatic data input and a data response telephone terminal device, and when the data are inputted from a general sound picture drawing communication terminal connected to the automatic data input and a data response telephone terminal, the alphabet, KANA character, KANJI and figure can be used.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a telephone terminal device, and is particularly suitable for automatic data input, which is suitable for unattended collection of various data and sending data according to the request of the other party. This invention relates to the configuration of a data response telephone terminal device.

[Conventional technology]

The need for a terminal device that can unattendedly accept various reservation applications and make inquiries about the status of reservations using a telephone line is increasing day by day. Regarding automatic data input and data response devices using conventional telephone terminal devices, see Nikkei Communication, March 24, 1986, issue 44.
As described on the following pages, in response to a question uttered by a voice synthesizer, the other party presses a button on a dual-tone (double frequency combination type) telephone to receive the instructions from O to 9. The numbers up to , #, and the umbrella symbol button are emitted (by analyzing the frequency of the sound contained in the eye symbol sound, identifying and recognizing the combination of frequencies as shown in Figure 8, and reading the above data. A method was used to import the data.

[Problem that the invention seeks to solve]

However, in the above-mentioned prior art, no consideration was given to the input of characters other than the numbers 0 to 9, #, and the taunt symbol.

The object of the present invention is to provide an automatic data input and automatic response device using a telephone terminal, and the caller can receive an alphabetical response.

The purpose is to allow users to input characters using characters such as kana characters and kanji.

[Means for solving problems]

The above purpose is to provide a telephone terminal device capable of simultaneous voice and drawing communication.
This is achieved by providing handwritten character recognition means.

[Effect]

According to the above configuration, handwriting information such as handwritten characters written on the voice-drawing simultaneous communication telephone terminal of the other party is received and received through the telephone line, and handwriting information such as handwritten characters written on the receiving side's voice-drawing simultaneous communication telephone terminal is received. Since data is accepted based on character recognition, it is possible to exchange text information between terminals without any rules other than the standard procedure for simultaneous voice and drawing communication. .

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

First, a simultaneous voice-drawing communication terminal, which is the basis of the present invention, will be explained. FIG. 1 shows the configuration of one general audio-rendering simultaneous communication terminal in a connected state. In this figure, IJ- indicates a telephone line. ]-2 is a demultiplexing circuit whose internal configuration is as shown in FIG. That is, the demultiplexing circuit 12 is composed of a band-elimination filter 47 and a band-pass filter 48.

Both terminals of these filters are connected to telephone line 1.
1, the telephone 22, 22' is connected to the other terminal of the band-elimination filter 47, that is, the audio side terminal, and the modem 1 is connected to the other terminal of the band-pass filter 48, that is, the data side terminal.
3 and 13' are connected.

The other terminal of the modem 13 is connected to a CPU for control, and a control memory circuit 182, a display memory 17, and an analog-to-digital conversion circuit 15 are connected to the CPU. The display device memory 17 includes a drawn image display section 20.
However, at the other terminals of the analog-digital conversion circuit 15,
The other terminal of the detection circuit 1.6 connected to the drawn image input section 19 is connected. A case will be described in which, with such a configuration, audio signals and drawn image signals are simultaneously exchanged using only the telephone line-line. First, regarding the signal flow of voice communication, the voice signal captured from the telephone set is transmitted at a frequency of 300-3400T (y, The band is limited and input to the demultiplexing circuit 12.The demultiplexing circuit 12 selects some frequencies (1,60
Since it is connected to the telephone line through a band-elimination filter (BEF) 47 that blocks 0-1900I(z), signals such as 47'47' in FIG. 4 are applied to the line. Since the other party's terminal has basically the same configuration, the other party's telephone 22' also has the terminal 47' in FIG.

A signal such as 47' is applied, and although part of the audio signal is missing in terms of frequency, it is possible to have a conversation as normal. On the other hand, when transmitting a drawn image, as shown in the data flow in FIG. After being converted into digital information by the analog-digital conversion circuit 15, the information is delivered to the CPU 14.

The CPU 14 receives the digital signal from the analog-to-digital conversion circuit 15, converts the positional information of the pen tip used to write handwritten characters into handwritten code information based on the conversion table stored in advance in the control memory circuit 18. and sends data to modem 13. The modem 13 receives a digital signal "1" forming code information.

According to the "0" information, so-called frequency modulation is performed in which sounds of different frequencies are oscillated as shown in FIG. The code information of the handwriting converted into two types of audio signals of 1650 Hz and 1850 Hz in this way is passed through a band pass filter 48 which is one of the components of the demultiplexing circuit 12.
The data is connected to the telephone line 11° through the cable and transmitted to the other party. On the receiving side, the data signal of the drawn image passes through a band pass filter (BPF) 48 that passes 1600 to 1900I (z) as shown at 48 in FIG.
′ is supplied. The modem 13' detects the frequency of the voice modulated according to the information of the digital signal and performs an inverse conversion operation to the original digital signal. CPU14' is modem 13
Control memory circuit 1 that receives digital signals from '
The handwriting code information is converted into the pen tip position information of handwritten characters using the conversion table stored in advance in the conversion table 8', and the handwriting information is stored in the display device memory 17' by dividing the interpolation line between each sampling point. The drawn image is displayed on a drawing display section 20' connected to a display memory 17'.

Next, handwritten character recognition, which is also a basic element, will be explained. FIG. 7 shows the flow of processing when character recognition is performed using pen tip position data. 4
Reference numeral 9 is input original data, which indicates sampling points at fixed time intervals of the pen trajectory input from the drawing image input section. The data is subjected to a resampling process 50 in which the sampling points are narrowed down to several points per line segment in order to remove redundant points. Next, in step 51, the center of gravity of the character is moved parallel to the reference point to normalize the position of the input character. 52 is a process for normalizing the size of characters, and the distance between each re-sampling point and the center of gravity is expanded or reduced so that the average distance between each re-sampled point and the center of gravity becomes a preset value. do.

53 is a process of calculating the distance between each re-sampling point of the handwritten input data normalized in this way and a representative point of a standard pattern prepared in advance, and 54 is a process of calculating the distance between each re-sampling point of the handwritten input data normalized in this way and the representative point of the standard pattern prepared in advance, and in 54, among the candidate characters, The character with the smallest difference is selected and a code for the character is generated in step 55.

Next, a configuration example of the present invention will be explained using FIG. 2. Reference numeral 23 denotes a line control unit 1- with an automatic answering function, which is connected to a telephone line 35.

Terminals of the line control units I-23 are connected to a demultiplexing circuit 24. Another terminal of the line control unit 23 is connected to the control CPU or system control computer 26.
Connected to nine. Among the other terminals of the demultiplexing circuit 24, the telephone set 34 and the audio output terminal of the speech synthesis unit 27 are connected to the audio terminal connected to the above-mentioned band rejection filter. A modem 25 is connected to the data side of the demultiplexing circuit 24, which is connected to the above-mentioned bandpass filter, and the other terminal of the modem 25 is connected to a control CPU or a system control computer 26. The control CPU or system control computer 26 is equipped with handwritten character recognition software 28, and is connected to the drive trigger terminal of the speech synthesis unit 27. The control CPU or system control computer 26 may also include a monitor television 29. Printer 30. A memory 31 such as a floppy disk, a keyboard 32, a tablet 33, etc. are connected. Reference numeral 46 denotes a voice/drawing simultaneous communication terminal on the other party's side, which is connected to the automatic data input/data response telephone terminal device of the present invention via a telephone line 35.

Of course, even if the other party's terminal 46 is the general voice-drawing simultaneous communication terminal mentioned above, automatic data input according to the present invention is possible.
It is clear that a data-responsive telephone terminal may also be used. Now, when a "call" signal is sent from the voice-drawing simultaneous communication terminal 46, the line control unit 2 with automatic reception function
3 detects that a "call" is occurring from the other party's telephone terminal and automatically answers the "call". ``The information that call J has been answered is transmitted to the control CPU or system control computer 26, and the control CPU or system control computer 26 sends an acceptance message to the drive trigger terminal of the speech synthesis unit 27.'' This voice message is transmitted to the terminal 46 and sent to the telephone 45 according to the operating principle described above.
You can listen to it by Therefore, messages such as questions issued from the voice synthesis unit 27 in response to commands from the control CPU or the system control computer 26 are naturally transmitted to the telephone set 45. In response, terminal 46
The handwriting information of the handwritten characters sent from is transmitted from the line control unit 23 to the modem 25 through the demultiplexing circuit 24 according to the operating principle described above, and then sent to the control CPU or system control computer 26. It will be done. The handwriting information is subjected to the above-mentioned processing by the handwritten character recognition software 28 built into the control CI) or the system control computer 26, and is then recognized as a character and taken in as data. As described above, Alphabella 1- is entered as a candidate character in the automatic data input and data response telephone terminal device.

By preparing kana characters, kanji, numbers, etc., you can perform automatic data input and data processing when attempting to manually input data from a general voice-drawing simultaneous communication terminal connected to a telephone terminal.
Alphabet, kana characters.

You will be able to use kanji numbers. Therefore, as a procedure for receiving and passing -O information between terminals, it is easy to use alphabets, kana characters, kanji, etc. that were previously impossible, even if there are no rules other than the standard procedure for so-called general simultaneous voice and drawing communication. The effect is that a good automatic data entry and data response telephone terminal can be obtained.

〔Effect of the invention〕

According to the present invention, alphabets, kana characters,
Since kanji etc. can be used freely, people who are trying to input data from the terminal side do not have to think about the numerical code corresponding to the data they are trying to input in their head. Easy-to-use automatic data entry as you can directly enter data such as , numbers, etc.

It has the advantage that it can be used as a data response telephone terminal.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a voice-drawing simultaneous communication terminal that is the basis of the present invention, and Fig. 2 is a block diagram of an automatic communication terminal according to an embodiment of the present invention.
, Figure 4 is a configuration diagram of the demultiplexing circuit, Figure 4 is a diagram showing the frequency spectrum of the signal, Figure 5 is a corresponding diagram of frequency modulation,
Figure 6 is a flowchart of image data, Figure 7 is a flowchart of character recognition processing, and Figure 8 is a diagram showing the combinations of signal tones emitted in response to each button on a conventional duotone telephone. be.

Claims (1)

[Claims] 1. A telephone terminal device capable of simultaneous voice/drawing communication and equipped with handwritten character recognition means.