JPH04351155A - Hand-written communication terminal equipment - Google Patents

Abstract

PURPOSE:To realize the hand-written communication terminal equipment in which-hand-written communication or voice communication is automatically selected without need for the entry by the operator. CONSTITUTION:When a hand-written input signal S1 of its own equipment is inputted by an input pen 14 or an FSK detection section 3 detects a hand- written communication data through a line 2, a CPU 15 uses a signal S3 to select a relay 4 through the contact of which a telephone set 5 is connected to the line 2 so far and the line 2 and a telewriting MODEM 9 are connected so as to send/receive a data. When the hand-written communication is finished, the relay contact 4 is restored to implement telephone talking state.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten communication terminal capable of transmitting and receiving voice calls using a telephone and input handwritten data to and from the other party.

0002

2. Description of the Related Art The communication method for handwritten communication in handwritten communication terminals is defined by CCITT recommendations, and is the FSK method with a communication speed of 300 bps. This CCIT
According to T's recommendation, voice calls can be carried out in parallel with handwritten communications.

0003

Problems to be Solved by the Invention The communication speed of 300 bps recommended by the above-mentioned CCITT is a little slow, so there is a delay in the display on the other party's device. Therefore, C
Apart from the CITT recommendations, devices have been developed that independently perform communication at a speed of 1200 bps. However, although this device with a communication speed of 1200 bps does not have the above-mentioned display delay problem, it does have the problem that it cannot communicate simultaneously with voice. At 1200bps, the audio is cut off during communication, so with this type of device, you have to switch between handwritten communication and conversation each time, making the operation extremely complicated. There was a problem.

[0004] The present invention has been made in view of the above problem, and even when handwritten communication is performed at a high speed of, for example, 1200 bps, switching between voice and voice is relatively easy, and operability is improved. The purpose is to provide an excellent handwritten communication terminal for users.

[0005]

[Means and effects for solving the problems] The handwritten communication terminal of the present invention is capable of voice communication using a telephone and the sending and receiving of handwritten data. , a means for detecting that handwritten communication data has been transmitted from the other party, and a means for connecting a telephone to the line when the line is connected, and selecting the handwritten communication of the own device or detecting handwritten communication data from the other party. It is characteristically equipped with a switching means for switching and connecting the handwritten communication modem to the line in response to the above.

In this handwritten communication terminal, when the line with the other party is connected, the telephone is always connected to the line and voice communication is possible. In this state, when the other device inputs handwritten data and sends handwritten communication data, the output detects this or when the own device inputs handwritten data, it responds to this input information and enters handwritten communication mode. In other words, connect the communication modem and telephone line. Thereby, handwritten communication data can be exchanged with the other party. For example, by simply scanning the input pen, it is possible to automatically switch from voice communication mode to handwriting communication mode, and once the input pen has finished scanning, the mode returns to voice communication, so there is no need for any special operator operation. You can switch between voice communication and handwritten communication.

[0007]

[Examples] The present invention will be explained in more detail below with reference to Examples. FIG. 1 is a block diagram showing the configuration of a handwriting communication terminal according to an embodiment of the present invention. This handwriting communication terminal 1 receives an F from the other party via line 2.
Equipped with an FSK detection section 3 that detects an SK signal, this FSK
The side of the detector 3 opposite to the line 2 is connected to a common contact c of the relay 4. Further, a telephone 5 is connected to another common contact c of the relay 4. A normally open contact a of the relay 4 is connected to a telewriting modem 9 via a transformer 6 and amplifiers 7 and 8. Further, the normally closed contacts b of the relay 4 are commonly connected to each other, and therefore the telephone 5
is connected to line 2. The other normally open contact a of the relay 4 is connected to the input/output line of the telewriting modem 9 via the transformer 10, the amplifiers 11 and 12, and the contacts of the relay 13, respectively.

Relay 4 is provided as a switch for switching between telephone conversation and handwritten communication, and relay 13
is provided to switch the communication speed between 300 bps and 1200 bps. The touch signal S1 of the input pen 14 and the detection signal S2 of the FSK detection section 3 are processed by the CPU 15.
relay 4 by one of these signals.
A signal S3 for switching between voice communication and handwritten communication is input to relay 4, and
A signal S4 is supplied to the relay 13 for switching the communication speed between 300 bps and 1200 bps as necessary.

[0009] With this handwriting communication terminal, the communication speed is 30%.
When setting the speed to 0 bps, the CPU 15 supplies the signal S4 to the relay 13, and the contacts 13a and 13a are turned on. When the line is connected to the other party, as is the case according to the CCITT recommendations, in this case the signal S3 is also added,
All relays 4 are connected to the contact a side. As a result, when handwritten communication data arrives from the other party through line 2, it is sent from contact a of relay 4 to telewriting modem 9 via transformer 6 and amplifier 7, and conversely, from telewriting modem 9 to amplifier 8, Handwritten communication data is sent to the other party via the transformer 6 and contacts a and c of the relay 4. The communication speed in this case is 300 bps. In this state, if the operator wants to make a voice call, he inputs voice from the telephone 5, and the other contact c and contact a
, transformer 10, amplifiers 11, 12, and contacts 13a and 13b of relay 13, amplifier 8, and transformer 6.
, that is, superimposed on the handwritten communication data, and sent to the other party. Conversely, when voice information is sent from the other party through line 2, the relay contact c, contact a, transformer 6, amplifier 7, relay contact 13b, amplifier 12, transformer 10, relay contact a ,c
is transmitted to the telephone set 5 via.

[0010] When handwritten communication is performed at 1200 bps, the relay 13 is turned off by a signal S4 from the CPU 15. Further, the common contact c of the relay 4 is connected to the normally closed contact b side. When the operator makes a voice call using the telephone 5 in such a state, the telephone 5 connects the other common contact c and the other normally closed contact b of the relay 4.
, normally closed contact b, and common contact c, a telephone signal is sent to line 2. The same is true in the opposite case when it is sent from the other party.

[0011] Next, when transmitting handwritten communication data from the own device, by scanning the pen 14, the signal is transmitted to C.
It is input to PU15. Alternatively, when handwritten data is sent from the other party through the line 2, it is detected by the FSK detection section 3 and the signal S2 is taken into the CPU 15. When the CPU 15 receives either the S1 signal or the S2 signal, the normally closed contact of the relay 4, which had been connected to the b side, is turned to the normally open contact a side. As a result, handwritten data is exchanged between the telewriting modem 9 and the line 2. In this case, since the contacts 13a and 13b of the relay 13 are turned off, the voice from the telephone set 5 cannot be communicated.

[0012] When the handwritten communication and the data exchange are completed, the CPU 15 switches the relay 4 to the normally closed contact b side again using the signal S3, thereby making voice communication possible.

[0013]

Effects of the Invention According to this invention, for example, 1200 bp
When performing handwritten communication with s, in response to handwritten input from the device itself or reception of handwritten data from the other party, the line is directly connected to the telewriting modem and handwritten communication is performed. When the handwritten communication is finished, the telephone is connected to the line so that voice communication can be performed again, so the operator does not need to switch between voice communication and handwritten communication, so operability is greatly improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a handwriting communication terminal according to an embodiment of the present invention.

[Explanation of symbols]

2 Line 3 FSK detection section 4 Relay 5　　　　Telephone 9 Telewriting modem 13 Relay 14 Input pen 15 CPU

Claims (1)

[Claims] Claim 1: A handwritten communication terminal that is capable of making voice calls using a telephone and transmitting and receiving handwritten data; means for detecting that the terminal has selected handwritten communication; means for detecting that the telephone is connected to the line when the line is connected, and in response to the selection of the handwritten communication of the own device or the detection of handwritten communication data from the other party, the handwritten communication modem is switched to the line. A handwritten communication terminal comprising a switching means for connecting.