JPH01296849A - Tele-writing terminal equipment - Google Patents

Abstract

PURPOSE:To improve the operation environment of an interactive type picture communication by using an input output integral type digitizer for the input output device of the line drawing information of a tele-writing terminal. CONSTITUTION:The line drawing information inputted by using a pen for an input output integral type digitizer 1-1 is displayed on the display of the digitizer and outputted to a encoder decoder 1-2. The encoding signal from the encoder decoder 1-2 is sent through a modulator demodulator 1-3 and a communication line interface 1-4 onto the communication line. At the tele-writing terminal at the opponent side, a receiving signal is inputted through the communication line interface 1-4 to the modulator demodulator 1-3, and further, outputted through the encoder decoder 1-2 to the input output integral type digitizer 1-1.

Description

[Detailed Description of the Invention] [Field of Application in Business A] The present invention relates to a telewriting terminal device, and more specifically, the present invention relates to a telewriting terminal device that encodes positional information of the movement of a pen tip as two-dimensional coordinate information, and encodes positional information of the movement of a pen tip as two-dimensional coordinate information. In addition to transmitting via
This invention relates to a telewriting terminal device that reproduces the movement of a pen tip when receiving data to draw an image.

[Conventional technology] FIG. 2 shows the configuration of a conventional telewriting device.

In the figure, 2-1 is a tigitizer that converts the movement of the pen tip into coordinate information; 2-2 is an encoder that converts the coordinate information into a signal according to the telewriting encoding method;
-3 is a modem (MODEM) that converts the signal into a transmission signal within the voice band of the communication line, extracts the telewriting transmission signal from the signal from the communication line, and converts it into a coded signal, 2-4 is a communication line interface for connecting the telewriting device with a communication line,
2-5 is a decoder that decodes the encoded signal from the modulator/demodulator 2-3 to obtain coordinate information; 2-6 is an output device such as a printer or display that records the coordinate information from the decoder 2-5; -7 processes the audio signal given from the communication line via the communication line interface 2-4 and transmits it to the speaker 2-8, and also processes the audio signal from the microphone 2-9 and sends it to the communication line interface 2-7. This is an audio circuit for transmitting data to a communication line via -4.

When telewriting terminals having the above configuration are connected via a communication line, their operation is as follows.

Line drawing information manually entered with a pen on the digitizer 2-1 on the transmitting side is encoded in fixed units by the encoder 2-2, modulated by the modem 2-3, and sent to the communication line interface 2-4. It is sent out on the communication line via. In the telewriting terminal on the receiving side, the signal is demodulated by a modem 2-3 via a communication line interface 2-4, and line drawing information is reproduced by a decoder 2-5. The line drawing information is drawn on the recording medium or screen by the output device 2-6.

Since this series of signals for telewriting during operation generally occupies only part of the audio band, it is possible to exchange audio information via the audio circuit 2-7.

[Problems to be Solved by the Invention] However, in the conventional example described above, the line drawing information input/output devices are installed separately, so line drawing information from one side cannot be corrected or corrected in real time by the other side. There was a problem in that it was difficult to operate for interactive image communication such as.

SUMMARY OF THE INVENTION An object of the present invention is to solve such problems and provide a lid for a telewriting terminal with improved operability during telewriting operation.

[Means for Solving the Problems] To this end, the present invention provides input/output means comprising a display means having a display screen for displaying drawing information related to transmission and reception, and a human power means provided integrally with the display screen and receiving the drawing information. It is characterized by having the following.

[Function] According to the present invention, an interactive image can be created by using a human output integrated digitizer that integrates a human input surface using a pen or the like and a display screen for displaying information as an input/output means for drawing information such as line drawings. Communication operability is greatly improved.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the invention.

Here, 1-1 is an input/output integrated digitizer having a function of receiving human power on the image display surface. The input/output integrated digitizer 1-1 is, for example, a transparent digitizing tablet with a graphic display attached below it. When the tip of the pen serving as an instruction means contacts the tablet, the current position of the pen tip is detected and input manually as coordinate information. It can also be displayed on a graphic display attached to the bottom of the tablet. This transparent tablet may be one in which the contact position of the pen tip on the tablet surface can be manually determined as coordinates using, for example, an electromagnetic induction method.

1-2 encodes the coordinate information from the integrated digitizer 1-1 and sends it to the subsequent modulator/demodulator 1-3, and also decodes the encoded information from the modulator/demodulator 1-3 to reproduce the coordinate information. The encoder/decoder (GODEC) 1-3 outputs to the integrated input/output digitizer 1-1, modulates the encoded signal from the encoder/decoder 1-2 into a signal suitable for the communication line, and 1-4 is a communication line for connecting the telewriting terminal according to this example to a communication line. interface,
1-5 processes the audio signal received from the communication line via the communication line interface 1-4, and the following speaker 1
This is an audio circuit for processing the audio signal output from the microphone 1-7 and sending it to the communication line via the communication line interface 1-4.

In the above configuration, the operation when two or more telewriting terminals are connected through a communication line will be described below.

Line drawing information entered manually using a pen into the digitizer integrated with the human output 1-1 is displayed on the display of the digitizer and is also output to the encoder/decoder 1-2.

The encoder/decoder 1-2 encodes the line drawing information in fixed units and outputs it to the modulator/demodulator 1-3. The modem 1-3 modulates the encoded signal and connects the communication line interface 1-4.
It is sent out on the communication line via.

At the other party's telewriting terminal, the received signal is input to a modem 1-3 via a communication line interface 1-4. The modulator/demodulator 1-3 demodulates the received signal and reproduces the encoded signal. Furthermore, the coded signal is
The decoder 1-2 decodes the line drawing information, reproduces it, and outputs it to the input/output integrated digitizer 1-1.

In this way, the digitizer integrated with people output 1-1 displays the same line drawing as that displayed on the digitizer integrated with people output on the transmitting side. By repeating this sequence of operations, it becomes possible to interactively correct, correct, etc. the line drawing information. Furthermore, since the telewriting signal occupies only a portion of the audio signal band, it is possible to have an audio conversation even during image communication. Therefore, by carrying out the above-mentioned interactive image communication in real time while simultaneously carrying out an audio conversation, the conversation can proceed as if both parties were facing the same sheet of paper and making changes to the sheet of paper. This allows some kind of communication to take place.

[Effects of the Invention] As described above, according to the present invention, by using a digitizer with an integrated input/output device for the line drawing information input/output device of a telewriting terminal, communication partners can always view the same screen. This has the effect of greatly improving the operating environment for interactive image communication, where conversations are carried out while making corrections and changes.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional telewriting terminal device. 1-1... People output integrated digitizer, 1-2...
Encoder/decoder (GODEC), 1-3.2-3...Modulator/demodulator (liilODEM), 1-4.2-4...Communication line interface, 1-5.2-7...Audio circuit , 1-6.2-8...Speaker, 1-7.2-9...Microphone, 2-1...Digitizer, 2-2...Encoder, 2-5...Decoding 2-6... Output device.

Claims (1)

[Claims] 1) A telewriting terminal device characterized by comprising a display means having a display screen for displaying drawing information related to transmission and reception, and an input/output means consisting of an input means provided integrally with the display screen and receiving the drawing information. .