JP2001016349A - Communication terminal by sound coupling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily conduct sound coupling between a communication terminal and a handset of a telephone set without being concerned about the direction of the handset by a user. SOLUTION: Coupling sections 1A, 1B are respectively acoustically coupled with a transmitter part 21 and a receiver part 22 of a handset 20. The coupling sections 1A, 1B are respectively provided with speakers 11, 12 and a changeover circuits 2, 3 are used to select a speaker function or a microphone function. The speaker 11 of the transmitter part 21 is selected as the speaker function, which gives a signal from a modulation circuit 4 to transmit information to a telephone line. The speaker 12 of the receiver part 22 is selected as the microphone function, which uses a demodulation circuit 5 to demodulate a received signal to receive information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device using acoustic coupling, which is connected to a telephone using acoustic coupling and can communicate information with a telephone line.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Unexamined Patent Publication No. 3-1985
Information communication by acoustic coupling via a telephone is performed using an acoustic coupler device as described in JP-A-62. In the acoustic coupler device, the telephone handset is attached to a dedicated coupling box containing a microphone and a speaker, and the receiving side of the handset is placed on the microphone side of the coupling box, and the transmitting side of the handset is placed on the speaker side of the coupling box. Each of them is acoustically coupled to transmit information via an acoustic signal.

However, when performing information communication by acoustic coupling, information to be communicated must be once converted into an acoustic signal, so that the frequency band is restricted and it is difficult to increase the communication speed. 2. Description of the Related Art In recent computer communications, the amount of data to be communicated has increased dramatically, and there is a demand for increasing the communication speed. Therefore, a communication standard has been devised that enables signal processing to increase the communication speed even in a limited frequency band by a modulation method, encoding, or compression processing without once converting the content of information communication into an acoustic signal. Information communication via a modem that can be directly connected to a telephone line is becoming common.

[0004]

In order to connect a communication terminal device to a telephone line via a modem, it is necessary to directly connect the modem and the telephone line. For this reason, in a modem or a communication terminal device incorporating a modem, it is necessary to prepare a code for connecting to a telephone line. However, the specifications of the connection port of the telephone line are not always unified, especially in a portable communication terminal device that can be carried.
Because it is difficult to identify the telephone for connection in advance,
It can only be used with phones that have a connection suitable for the cable. In addition, it is necessary to always carry a cable for connection even though emphasis is placed on portability as a communication terminal device.

[0005] If the connection to the telephone is made by using an acoustic coupling such as an acoustic coupler device, there is no problem as in the case of connecting with a cable. When information communication is performed by a portable terminal device having a small data size to be handled, the communication speed does not need to be too high, and the connection method using acoustic coupling is being reviewed. However, the acoustic coupler device described in Japanese Patent Application Laid-Open No. 3-198562 needs to have a box shape to which a handset of a telephone can be mounted, so that it is too large for a portable terminal device and lacks portability. Therefore, there has been considered a method of performing acoustic coupling by bringing a microphone and a speaker built in the portable terminal device into close contact with a transmitter and a receiver of a telephone handset, respectively. Even with such a simple system, if the communication speed is low, sufficient communication reliability can be obtained, and information communication can be performed via a telephone line without incurring much cost on the portable terminal device side. .

In the conventional acoustic coupler device, when the handset of the telephone is mounted, it is necessary to set the transmitter and the receiver of the handset in a predetermined direction.
Further, even when a microphone and a speaker are brought into close contact with a transmitter and a receiver of a handset directly, it is necessary to combine the transmitter and the speaker and the receiver and the microphone so as to correspond to each other correctly. However, although setting correctly seems easy, it is very elusive to an unskilled user. In addition, if the setting direction is wrong, information communication cannot be performed, and the time and communication cost required for connecting the telephone line are wasted.

An object of the present invention is to provide a communication terminal device by acoustic coupling which can connect a communication terminal device to a telephone line without worrying about the orientation of a transmitter and a receiver of a telephone. That is.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a communication terminal device using acoustic coupling for transmitting information to and from a telephone by acoustic coupling with a telephone handset and performing information communication via a telephone line network. A first acoustic coupling part acoustically coupleable to one of a transmitter part and a receiver part of a telephone handset, and switchable to a transmitting side or a receiving side; and a telephone part of the telephone handset. Alternatively, a second acoustic coupling unit that can be acoustically coupled to the other of the receiver units and that can be switched to a transmitting side or a receiving side, and transmits the first acoustic coupling unit when performing information communication in a full-duplex system. Side, and switches the second acoustic coupling unit to the receiving side to determine whether or not information communication is possible. If it is determined that information communication is not possible, the first acoustic coupling unit is received. Side, and the second acoustic coupling unit is switched to the transmitting side. A determining unit for determining whether information communication is possible by switching, and a switching state in which the determining unit determines that information communication is possible, an audio signal for information communication is output from the acoustic coupling unit switched to the receiving side. An acoustic circuit for inputting and outputting an acoustic signal for information communication to an acoustic coupling unit switched to a transmitting side.

According to the present invention, a first acoustic coupling part switchable to a transmitting side or a receiving side is acoustically coupled to one of a transmitter section and a receiver section of a telephone handset. A second acoustic coupling unit switchable to a transmitting side or a receiving side is acoustically coupled to the other of the transmitter section and the receiver section of the telephone handset. The determining unit switches the first acoustic coupling unit to the transmitting side and switches the second acoustic coupling unit to the receiving side when performing information communication in the full-duplex system, and determines whether information communication is possible. When it is determined that the information communication is not possible, the first acoustic coupling unit is switched to the receiving side, and the second acoustic coupling unit is switched to the transmitting side to determine whether the information communication is possible. In the switching state in which the information communication is determined to be possible by the determination unit, the acoustic circuit inputs the audio signal for information communication from the acoustic coupling unit switched to the receiving side, and transmits the audio signal to the acoustic coupling unit switched to the transmitting side. Outputs an audio signal for information communication. One of the first acoustic coupling unit and the second acoustic coupling unit is switched to the transmitting side and the other is switched to the receiving side, and the switching state is adapted to the arrangement of the handset part and the handset part of the handset of the telephone. For example, information communication can be performed as it is, and when it is not suitable, the determination unit determines that the information communication is not possible, and the receiving side and the transmitting side are switched, so that the information communication can be performed. When the user of the communication terminal device attaches the acoustic coupling unit to the handset, the first acoustic coupling unit and the second acoustic coupling unit are coupled without worrying about the orientation of the handset to perform information communication. It can be performed.

Further, the present invention relates to a communication terminal device using acoustic coupling for transmitting information to and from a telephone by acoustic coupling with a telephone handset and performing information communication via a telephone line network. A first acoustic coupling portion acoustically coupleable to one of a transmitter portion and a receiver portion of the telephone, and switchable to a transmitting side or a receiving side; and a first acoustic coupling portion of the handset portion of the telephone handset. The second can be acoustically coupled to the other side and can be switched to the transmitting side or the receiving side.
When information communication is performed in a one-way system or a half-duplex system with the acoustic coupling unit, the first acoustic coupling unit and the second acoustic coupling unit are switched to the receiving side to determine whether there is received information. If there is no received information, the first acoustic coupling unit and the second acoustic coupling unit are switched to the transmitting side to make a transmission determination to determine whether there is transmission information. A determination unit that repeats reception determination and transmission determination unless communication is completed, and an information communication unit when the first acoustic coupling unit and the second acoustic coupling unit are switched to the receiving side. And a sound circuit for outputting a sound signal for information communication when the sound signal is switched to the transmission side.

According to the present invention, one of the first acoustic coupling section and the second acoustic coupling section is mounted on the transmitter section of the telephone handset, and the other is mounted on the receiver section. When the information communication is performed in the one-way system or the half-duplex system, the first acoustic coupling unit and the second acoustic coupling unit are switched to the receiving side to determine whether or not there is received information. If not, the determination unit performs a transmission determination of switching the first acoustic coupling unit and the second acoustic coupling unit to the transmitting side and determining the presence or absence of transmission information. Either the first acoustic coupling unit or the second acoustic coupling unit is acoustically coupled to the transmitter side of the handset, and the other is acoustically coupled to the receiver side. In a one-way or half-duplex system that does not perform at the same time, the first acoustic coupling unit and the second acoustic coupling unit are simultaneously switched to the receiving side or the transmitting side so that the orientation of the handset does not matter. Thus, information can be reliably transmitted through the acoustic signal.

Further, the present invention is characterized in that it comprises a switching notifying section for notifying a switching state of the first acoustic coupling section and the second acoustic coupling section to a transmitting side or a receiving side.

According to the present invention, the first acoustic coupling portion and the second acoustic coupling portion
The user of the communication terminal device can know through the switching notification unit whether the acoustic coupling unit of the telephone is switched to the transmitting side or the receiving side, so that the acoustic coupling with the handset of the telephone is properly performed. The user can easily know what is being done.

Further, in the present invention, when it is not possible to determine that the information communication is possible, or when it is determined that the communication has been terminated but not normally terminated in the termination determination, it is determined as an error, and the determination is made. When the unit determines that an error has occurred, an error reporting unit that reports the occurrence of the error is provided.

According to the present invention, an error is notified when it is determined that information communication is not possible or the termination of communication is not normal, so that the user of the communication terminal can easily generate an error. You can know.

Further, in the present invention, the first acoustic coupling section and the second acoustic coupling section are configured identically.

According to the present invention, since the first acoustic coupling unit and the second acoustic coupling unit have the same configuration, the user of the communication terminal device can use the first acoustic coupling unit and the second acoustic coupling unit. Can be handled equally, and correct acoustic coupling can be performed without worrying about the orientation of the handset of the telephone.

Further, the present invention provides a first acoustic coupling section which can be acoustically coupled to one of a transmitter section and a receiver section of a telephone handset, and which can be switched to a transmitting side or a receiving side, A second acoustic coupling part which can be acoustically coupled to the other of the transmitter part or the receiver part of the handset and which can be switched to a transmitting side or a receiving side, wherein the telephone is connected to the telephone by the acoustic coupling with the telephone handset. Is a program for controlling, by a computer, a communication terminal device by acoustic coupling for transmitting information between and communicating information via a telephone line network.
Is switched to the transmitting side, and the second acoustic coupling section is switched to the receiving side to determine whether or not information communication is possible. When it is determined that information communication is not possible, the first Is switched to the receiving side, and the second acoustic coupling section is switched to the transmitting side to determine whether information communication is possible and perform information communication in a one-way system or a half-duplex system. In this case, the first acoustic coupling unit and the second acoustic coupling unit are switched to the receiving side to determine whether or not there is received information. If there is no received information, the first acoustic coupling unit and the second acoustic coupling unit are switched. The acoustic coupling unit is switched to the transmitting side to make a transmission determination to determine the presence or absence of transmission information. If there is no transmission information, a termination determination is made to determine whether or not to end communication. Repeatedly for information communication from the acoustic coupling part switched to the receiving side Enter the acoustic signal, a computer readable medium having recorded thereon a program for controlling the communication terminal device in a computer so as to output a sound signal for communicating information to the acoustic coupling portion is switched to the transmitting side.

According to the present invention, the communication terminal device is controlled by the computer, so that the sound coupling of the telephone with the handset can be reliably performed without concern for the orientation of the handset. Can be improved.

[0020]

FIG. 1 shows a schematic electrical configuration of a communication terminal device using acoustic coupling according to a first embodiment of the present invention. The coupling units 1A and 1B can be connected to the modulation circuit 4 and the demodulation circuit 5 which are acoustic circuits via the switching circuits 2 and 3. The CPU 6 performs various types of information processing according to a program stored in the memory 7 in advance. Input of information and the like necessary for processing can be performed from the input unit 8.
Among the information processed by the CPU 6, information that needs to be notified to the user is displayed on a display unit 9 realized by, for example, a liquid crystal display device. The communication terminal device 10 includes speakers 11 and 12 that can be used as microphones in the coupling units 1A and 1B. The speakers 11 and 12 perform the above-described acoustic conversion, and convert an electrical output into an acoustic output by mechanical vibration of a diaphragm. Conversely, when an acoustic signal is externally applied to the diaphragm and vibrated, an electrical output can be obtained with the vibration and the diaphragm can be used as a microphone.

The coupling sections 1A and 1B are acoustically coupled to the transmitter section 21 and the receiver section 22 of the telephone handset 20, respectively. The acoustic coupling is performed in a state where external acoustic signals such as ambient noise are removed as much as possible. The information processed by the CPU 6 that needs to be output to the outside by communication is modulated by the modulation circuit 4 and output to the switching circuit 2. Information provided to the CPU 6 from outside by communication is demodulated by the demodulation circuit 5 via the switching circuit 3 and input to the CPU 6.
Speakers 11 and 12 are connected to each of the switching circuits 2 and 3 in parallel, and when performing full-duplex communication, that is, duplex communication, the switching circuit 2 is connected to the speaker 11 of the coupling unit 1A.
Is connected to the output of the modulation circuit 4, the switching circuit 4 connects the output from the speaker 12 of the coupling unit 1B to the input of the demodulation circuit 5. Conversely, when the switching circuit 2 connects the output of the modulation circuit 4 to the speaker 12 of the coupling unit 1B, the switching circuit 3 connects the input of the demodulation circuit 5 to the speaker 11 of the coupling unit 1A.

The speakers 11 and 12 are provided so as to face the transmitter section 21 and the receiver section 22 of the handset 20 of the telephone. The speakers 11 and 12 have a function of generating a sound in accordance with an acoustic signal and also generate an electromotive force by a sound from the telephone. Occurs
Also works as a microphone. Since the speakers 11 and 12 also operate as microphones, the coupling sections 1A and 1B
Can be configured small and at low cost.

FIG. 2 shows a communication terminal device 30 according to a second embodiment of the present invention, in which coupling units 1A and 1B have speakers 1
1 shows a configuration including microphones 31 and 32 (hereinafter sometimes abbreviated as “microphone”) together with the microphones 1 and 12. When the switching circuit 2 connects the coupling sections 1A and 1B to the output of the modulation circuit 4 in the full-duplex system, the speakers 11, 1
Connect to one of the two. The switching circuit 3 is the coupling unit 1
When A and 1B are connected to the input of the demodulation circuit 5, one of the outputs of the microphones 31 and 32 is connected.

FIG. 3 shows a control procedure when the host performs information communication in the communication terminal device 10 or 30 of the embodiment shown in FIG.
Communication is started from step a0, and in step a1, the acoustic coupling unit 1A is set to a microphone on the receiving side, and the coupling unit 1B is set to a speaker on the transmitting side. In step a2,
It is determined whether communication from the host has been received within a preset time. If it is determined that the signal has not been received, the combining unit 1B is set to a microphone and the combining unit 1A is set to a speaker in step a3. Step a4
Then, it is determined whether or not communication from the host has been received within a preset time. If it is determined that the communication cannot be received, it is determined in step a5 whether or not a predetermined number of checks has been exceeded. When it is determined that it has not exceeded, the process returns to step a1 and
The procedure up to step a5 is repeated. When it is determined in step a2 or step a4 that the communication from the host has been received within a preset time, the process proceeds to a data communication processing routine in step a6 to perform desired data communication. When it is determined in step a5 that the number of repetition loops has exceeded the preset number of checks, it is determined in step a7 that a communication error has occurred, and the process proceeds to an error processing routine.

The procedure shown in FIG. 3 is used in the case of a communication protocol in which the host first issues a pilot tone or a communication packet. In step a1, the coupling unit 1A is first set on the receiving side that functions as a microphone. If the coupling part 1A is acoustically coupled to the handset part 22 of the handset 20, in step a2, it should be possible to detect a pilot tone or a packet from the host within a preset time. This fixed time is, for example, one second. When this time elapses, in step a3, the combining unit 1B is set to the receiving side that functions as a microphone, and the combining unit 1A is set to the transmitting side that functions as a speaker.

The procedure of FIG.
The present invention can also be applied to an automatic connection function performed using an MF (Dual Tone Multi Frequency) signal. For example, in Japan, 400H from the NTT exchange while off-hook
The receiving side can be determined by detecting that the dial tone of z is sent.

FIG. 4 shows a control procedure in the case where a communication protocol for transmitting a signal from a communication terminal device first is adopted. Communication is started from step b0, and in step b1, the combining unit 1A is set to the transmitting side, which functions as a speaker, and the combining unit 1B is set to the receiving side, which functions as a microphone. Coupling unit 1A set on the transmitting side
, The signal determined by the central protocol is transmitted. In step b2, it is checked whether a response from the host has been detected for the coupling unit 1B set on the receiving side that functions as a microphone. If the signal from the host has not been confirmed, step b
At 3, the transmitting unit that functions as the speaker with the coupling unit 1B
The coupling unit 1A is set on the receiving side that functions as a microphone. A signal determined by the communication protocol is transmitted from the coupling unit 1B set on the transmission side. In step b4, a response from the host is confirmed. If the response cannot be confirmed, it is determined in step b5 whether the number of checks set in advance has been exceeded. If not, the flow returns to step b1 to return to step b1. To the step b5 are repeated. When the response from the host is confirmed in step b2 or step b4, the process proceeds to the data communication processing routine in step b6. If it is determined in step b5 that the number of repetitions exceeds the preset number of checks, a communication error is determined in step b7, and the process proceeds to an error processing routine.

FIG. 5 shows control in the communication terminal apparatuses 10 and 30 of the embodiment shown in FIG. 1 or 2 in the case of one-way communication called simplex communication or half-duplex communication called half-duplex communication. Here are the steps. Communication is started from step c0. In step c1, in the case of simplex communication or half-duplex communication, transmission and reception are not performed at the same time, so that both the coupling unit 1A and the coupling unit 1B usually use both microphones as microphones. It is set to the receiving side that has the function. Step c
At 2, it is determined whether or not there is received data. If, for example, a pilot tone on the host side is detected in step c2, it is determined that there is received data, and step c3 is determined.
Performs received data processing. When it is determined in step c2 that there is no received data, or when the received data processing in step c3 is completed, it is determined in step c4 whether there is data to be transmitted from the communication terminal devices 10 and 30. When it is determined that there is transmission data, in step c5, both coupling units 1A and 1B are set to the transmission side having a function as a speaker, and the transmission data is processed in step c6. When it is determined in step c4 that there is no transmission data, or when the transmission data processing in step c6 ends, it is determined in step c7 whether communication has ended.
If it is determined that the communication has not ended, the process returns to step c1 and repeats steps c1 to c7. If it is determined in step c7 that the communication has ended, the process proceeds to a communication end processing routine in step c8.

In the embodiment shown in FIG.
Is also used as a microphone. In general, a speaker of an electrodynamic type or the like can also be used as a microphone in terms of structure, and it is possible to switch between a transmitting side and a receiving side by switching and using an electric circuit. Whether to operate as a receiving side or a transmitting side can be determined by detecting a pilot tone from the host, or by sending a signal from the communication terminal 10 and confirming whether or not the host responds thereto. Can be determined.

In a portable communication terminal device, it is necessary to provide a microphone and a speaker so that a user can use a transmitter and a receiver without discriminating. However, the loudspeaker is a reversible conversion element that is not only configured to convert an electric signal into an acoustic signal, but also can convert an acoustic signal into an electric signal except for some loudspeakers. Therefore, in the communication terminal device 10 of the embodiment of FIG. 1, instead of separately preparing a microphone and a speaker, two speakers 11 and 12 are prepared, and by switching an electric circuit, both the microphone and the speaker function. Can be done.

However, when a speaker is used as a microphone, required characteristics may not be obtained well. In recent years, since the price of microphone components has also become lower, the communication terminal device 30 of the embodiment shown in FIG.
Then, the microphones 31 and 32 and the speakers 11 and 12 are set as a pair, and the microphones 31 and 32 are set depending on which side of the handset 20 corresponds to the transmitter 21 or the receiver 22. It is determined whether to make the H.32 function or the speakers 11 and 12 to work. That is, when acoustically coupled to the handset 20 of the telephone, it is determined which speaker 11, 12 is on the receiver 22 side or on the transmitter 21 side, and the transmission output side is determined. It is possible to select whether to function as a speaker or a microphone on the reception input side. The detection of the transmitting side and the detecting side differs individually depending on the communication protocol. However, basically, it can be roughly divided into two cases. The first case is when the host first issues a pilot tone or communication packet. In this case, as shown in FIG.
Is set to the receiving side first, and whether the pilot tone or the packet from the host can be detected is determined by the CPU.
Check at 6. If a signal can be detected, the coupling unit 1A functions as a microphone, and the coupling unit 1B functions as a speaker. If a signal cannot be detected for a predetermined time, for example, one second, the combining unit 1B is set on the receiving side, and signal detection is performed in the same manner. If a signal can be detected, the coupling unit 1B is set to a receiving side that functions as a microphone, and the coupling unit 1B is set to a transmitting side that functions as a speaker. Even if the coupling unit 1B is switched to the receiving side,
For example, if a signal cannot be detected for one second, the combining unit 1A is set to the receiving side again to perform a signal detection check. In this way, the setting of the coupling units 1A and 1B is switched, the signal on the receiving side is checked, and if the receiving side cannot be determined even after checking the preset number of times, communication is disabled. And perform error processing.

FIG. 6 shows a third embodiment of the present invention.
2 shows a schematic electrical configuration of a communication terminal device 40. This embodiment is similar to the embodiment shown in FIG. 1, and corresponding portions are denoted by the same reference numerals, and redundant description will be omitted. In the present embodiment, the transmission / reception indicators 41, 42 are provided on the coupling units 1A, 1B.
Are added, so that it is possible to display whether the coupling units 1A and 1B are the transmission side or the reception side.

FIG. 7 shows a communication terminal device 50 according to the fourth embodiment of the present invention as a communication terminal device 30 according to the embodiment of FIG.
6 shows a configuration in which transmission / reception displays 41 and 42 similar to those in the embodiment of FIG. 6 are added.

The transmission / reception indicators 41 and 42 added in the embodiments of FIGS. 6 and 7 use, for example, light-emitting diodes (LEDs) of two colors red and green, and emit red light on the transmission side and green light on the reception side. The communication terminal device 4
It is possible to notify the 0,50 users of the transmission side or the reception side.

FIGS. 8, 9 and 10 show control procedures for performing communication processing in the embodiment of FIGS. 6 and 7, respectively. The control procedure in FIG. 8 corresponds to the control procedure in FIG. 3, and each step from step d0 to step d7 is equivalent to each step from step a0 to step a7 in FIG. However, in step d2 or step d4,
When it is determined that the communication from the host can be received within a preset time, in step d2a, the combining unit 1A communicates with the receiving side and the combining unit 1B communicates with the transmitting side.
In the process of setting 1, 42 or in step d4a,
After performing processing for setting the transmission / reception indicators 41 and 42 with the coupling unit 1B on the receiving side and the coupling unit 1A with the transmitting side, step d6
To the data communication processing routine.

The communication procedure shown in FIG. 9 is basically the same as the communication procedure shown in FIG. 4, and the steps from step e0 to step e7 are performed from step b0 to step b in FIG.
7 is equivalent to each step. However, step e
When it is determined in step 2 or step e4 that the response from the host has been confirmed within the preset time, before the process proceeds to the data communication processing routine in step e6, the coupling unit 1A is connected to the coupling unit 1A in step e2a. The unit 1B sets the transmission / reception indicators 41 and 42 on the receiving side, or
The difference is that processing is performed to determine whether to set the transmission / reception indicators 41 and 42 with the combining unit 1B on the transmitting side and the combining unit 1A on the receiving side.

The communication procedure shown in FIG. 10 is basically the same as the communication procedure shown in FIG. 5, except that the transmission / reception displays 41 and 42 are displayed on the receiving side or the transmitting side in steps f1 and f5, respectively. From step f0 to step f
8 is equivalent to each step from step c0 to step c8 in FIG.

FIG. 11 shows a schematic electrical configuration of a communication terminal device 60 according to the fifth embodiment of the present invention. This embodiment has a configuration in which an error display lamp 61 is added to the third embodiment shown in FIG. 6, and a buzzer 62 is added as necessary.

FIG. 12 shows a schematic electrical configuration of a communication terminal device 70 according to the sixth embodiment of the present invention. The communication terminal device 70 of the present embodiment is different from the communication terminal device 50 shown in FIG.
In addition, an error display lamp 61 and a buzzer 62 similar to FIG. 11 are added.

FIGS. 13, 14 and 15 show a control procedure by the communication terminal devices 60 and 70 of FIG. 11 or FIG. In the control procedure of FIG. 13, each step from step g0 to step g7 corresponds to each step such as step d0 to step d7 in FIG. 8, and when it is determined that the number of checks exceeds a preset number of checks in step g5. To
A process of displaying a communication error on the error display lamp 61 in step g7a and then proceeding to an error processing routine in step g7 is added. The control procedure of FIG.
It has steps h0 to h7 equivalent to the steps e0 to e7 in FIG. 9, and when it is determined in step h5 that the preset number of checks has been exceeded, the error display lamp 61 is used in step h7a. After the error display, a process of shifting to an error processing routine of step h7 is added. In the control procedure of FIG. 15, steps i0 to i8 equivalent to the steps f0 to f8 in FIG. 9 are further performed, and steps i8a, i9, and i1 are further performed.
0 has been added. If it is determined in step i7 that the communication has been completed, it is determined in step i8a whether or not the communication has been completed normally. If it is determined that the communication has been completed normally, the process proceeds to a communication termination processing routine in step i8. If it is determined in i8a that the operation is not normally completed, the error display lamp 6 is determined in step i9.
In step i10, an error is displayed, and the process proceeds to a communication error processing routine. Although the display of the communication error is performed using the error display lamp 61, the buzzer 62 may be sounded to replace the error display lamp 61. In addition, the error display lamp 61 and the buzzer 6
The transmission / reception indicators 41 and 42 can be made to blink or an error message can be displayed on the display unit 9 without providing 2.

The program operated by the CPU 6 in each of the above embodiments can be stored in the ROM in the memory 7 in advance. In addition, it is downloaded to the RAM in the memory 7 from the outside via the input unit 8 via a recording medium represented by a floppy disk, a CD-ROM, an IC card, or the like, or downloaded via a telephone and a telephone line. Alternatively, it can be read into the RAM of the memory 7 and operated.

The connecting sections 1A and 1B have the same configuration so that the user can handle the same answer. Joint 1
A and 1B do not have the same configuration, and one is the communication terminal device 1
0, 30, 40, 50, 60, 70 Attached inside the main body, the main body situation is acoustically coupled to the transmitter section 21 or the receiver section 22 of the handset 20, and only one coupling section independent of the main body is provided. You can also.

[0043]

As described above, according to the present invention, when a communication terminal device performs information communication with a telephone line network through acoustic coupling via a telephone handset, information communication is performed in a full-duplex system. The combination of the acoustic coupling unit and the handset required for the above can be easily and reliably performed. Even if you do not care about the direction in which the handset is combined, communication through the telephone line and acoustic coupling can be reliably performed, improving user convenience and reducing communication time loss due to errors when performing acoustic coupling. The waste of communication costs can be reduced.

Further, according to the present invention, when performing information communication via a telephone line in a one-way system or a half-duplex system, it is possible to easily and surely combine a telephone handset and an acoustic coupling unit. It is possible to reduce communication time loss and communication cost waste due to a combination error.

Further, according to the present invention, the user of the communication terminal device can easily know whether the acoustic coupling unit has been switched to the transmitting side or the receiving side.

Further, according to the present invention, the user of the communication terminal device can easily know that an error has occurred in information communication by acoustic coupling.

Further, according to the present invention, since the first acoustic coupling section and the second acoustic coupling section are formed identically, the user of the communication terminal device treats the two acoustic coupling sections equally, This can be connected to the transmitter of the telephone handset and the other can be connected to the receiver to ensure reliable information communication.

Further, according to the present invention, the computer is operated in accordance with the program, and the communication terminal device communicates information with the handset of the telephone via the first and second acoustic coupling units. It is possible to easily and surely connect them without worrying about the orientation when combining them. Since no error occurs in the coupling between the handset and the acoustic coupling unit, loss of communication time and waste of communication cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration of a communication terminal device 10 according to a first embodiment of the present invention.

FIG. 2 is a block diagram illustrating a schematic electrical configuration of a communication terminal device 30 according to a second embodiment of the present invention.

FIG. 3 is a communication terminal device 1 according to the embodiment shown in FIG. 1 or FIG.
It is a flowchart which shows the communication procedure by 0,30.

FIG. 4 is a communication terminal device 1 according to the embodiment shown in FIG. 1 or FIG.
It is a flowchart which shows the communication procedure by 0,30.

FIG. 5 is a communication terminal device 1 according to the embodiment shown in FIG. 1 or FIG.
It is a flowchart which shows the communication procedure by 0,30.

FIG. 6 is a block diagram showing a schematic electrical configuration of a communication terminal device 40 according to a third embodiment of the present invention.

FIG. 7 is a block diagram illustrating a schematic electrical configuration of a communication terminal device 50 according to a fourth embodiment of the present invention.

8 is a communication terminal device 4 according to the embodiment shown in FIG. 6 or FIG. 7;
It is a flowchart which shows the communication procedure by 0,50.

9 is a communication terminal device 4 according to the embodiment shown in FIG. 6 or FIG. 7;
It is a flowchart which shows the communication procedure by 0,50.

FIG. 10 shows a communication terminal device 4 according to the embodiment shown in FIG. 6 or FIG.
It is a flowchart which shows the communication procedure by 0,50.

FIG. 11 is a block diagram showing a schematic electrical configuration of a communication terminal device 60 according to a fifth embodiment of the present invention.

FIG. 12 is a block diagram illustrating a schematic electrical configuration of a communication terminal device 70 according to a sixth embodiment of the present invention.

FIG. 13 shows the communication terminal device 60, 7 of FIG. 11 or FIG.
9 is a flowchart illustrating a communication procedure according to the first embodiment.

FIG. 14 is a diagram showing the communication terminal devices 60 and 7 shown in FIG. 11 or FIG.
9 is a flowchart illustrating a communication procedure according to the first embodiment.

FIG. 15 shows the communication terminal device 60, 7 of FIG. 11 or FIG.
9 is a flowchart illustrating a communication procedure according to the first embodiment.

[Explanation of symbols]

 1A, 1B Coupling unit 2, 3 Switching circuit 4 Modulation circuit 5 Demodulation circuit 6 CPU 7 Memory 8 Input unit 9 Display unit 10, 30, 40, 50, 60, 70 Communication terminal device 11, 12 Speaker 20 Handset 21 Speaker Part 22 Receiver part 31, 32 Microphone 41, 42 Transmission / reception display 61 Error display lamp 62 Buzzer

Claims (6)

[Claims] 1. A communication terminal device using acoustic coupling for transmitting information to and from a telephone by acoustic coupling with a telephone handset and performing information communication via a telephone line network. A first acoustic coupling unit that is acoustically coupleable to one of the handset part or the handset part and is switchable to a transmitting side or a receiving side; and the other of the handset part or the handset part of the handset of the telephone. A second acoustic coupling unit that can be acoustically coupled and switchable to a transmitting side or a receiving side; and a first acoustic coupling unit that is switched to a transmitting side when performing information communication in a full-duplex system. The coupling unit is switched to the receiving side to determine whether or not information communication is possible. When it is determined that the information communication is not possible, the first acoustic coupling unit is switched to the receiving side and the second acoustic coupling unit is switched to the receiving side. Information communication is possible by switching the acoustic coupling part to the transmitting side And a determination unit for determining whether or not the information communication is enabled by the determination unit.In the switching state, the audio signal for information communication is input from the acoustic coupling unit switched to the reception side, and transmitted to the transmission side. An acoustic circuit that outputs an acoustic signal for information communication to the switched acoustic coupling unit. 2. A communication terminal device using acoustic coupling for transmitting information to and from a telephone by acoustic coupling with a telephone handset and performing information communication via a telephone line network. A first acoustic coupling part acoustically coupleable to one of the handset part or the handset part and switchable to a transmitting side or a receiving side, and the other of the handset part or the handset part of the handset of the telephone. A second acoustic coupling unit that can be acoustically coupled and switchable to a transmission side or a reception side; and a first acoustic coupling unit and a second acoustic coupling when performing information communication in a one-way system or a half-duplex system. Switch the unit to the receiving side to determine whether there is received information. If there is no received information, switch the first acoustic coupling unit and the second acoustic coupling unit to the transmitting side to determine the presence or absence of transmitted information. Make a transmission decision and send If there is no report, a determination unit that determines whether or not to end communication is performed, and if not, a determination unit that repeats reception determination and transmission determination, and the first acoustic coupling unit and the second acoustic coupling unit are connected to the receiving side. When it is switched, input an audio signal for information communication,
And a sound circuit for outputting a sound signal for information communication when the communication terminal is switched to the transmission side. 3. The switching device according to claim 1, further comprising a switching notification unit that notifies a switching state of the first acoustic coupling unit and the second acoustic coupling unit to a transmission side or a reception side. Communication terminal device by acoustic coupling. 4. The determination unit determines that an error has occurred when the information communication cannot be determined to be possible, or when the termination determination determines that communication has ended but does not end normally, the determination unit determines 4. An error notification unit for notifying occurrence of an error when it is determined that an error has occurred.
A communication terminal device using acoustic coupling according to any one of the above. 5. The communication terminal device according to claim 1, wherein the first acoustic coupling unit and the second acoustic coupling unit are configured identically. 6. A first acoustic coupling part which can be acoustically coupled to one of a transmitter part and a receiver part of a telephone handset, and which can be switched to a transmission side or a reception side, and a telephone handset transmission part. A second part which can be acoustically coupled to the other of the talker part and the receiver part and which can be switched to a transmitting side or a receiving side;
And a computer for controlling a communication terminal device by acoustic coupling for transmitting information to and from a telephone by acoustic coupling with a telephone handset and performing information communication via a telephone line network. The first acoustic coupling unit is switched to the transmitting side, and the second acoustic coupling unit is switched to the receiving side, so that the information communication is possible. If it is determined that information communication is not possible, the first acoustic coupling unit is switched to the receiving side, and the second acoustic coupling unit is switched to the transmitting side, so that information communication is possible. If information communication is performed in a one-way system or a half-duplex system, the first acoustic coupling unit and the second acoustic coupling unit are switched to the receiving side to determine whether there is received information. Side judgment, and if there is no reception information, the first acoustic coupling unit And the second acoustic coupling unit is switched to the transmitting side to make a transmission determination to determine the presence or absence of transmission information. If there is no transmission information, a determination is made to determine whether or not to end communication. The communication is repeated so that the acoustic signal for information communication is input from the acoustic coupling unit switched to the receiving side, and the acoustic signal for information communication is output to the acoustic coupling unit switched to the transmitting side. A computer-readable medium storing a program for controlling a terminal device by a computer.