JPH09206328A - Information transmitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibrator with excellent transmitting efficiency of vibration energy and an information transmitter using the vibrator, by equipping an external vibrator comprising a vibration element, a driving means for the vibration element, a wire, and a case, and a receiver with an internal vibrator. SOLUTION: A pull-up resistance is connected to a connector pin CN3 in the power source side and a connector pin CN3 in an external vibrator side is connected to common ground. When the connector is inserted, the connector pin CN3 in the power source side comes to be the ground potential and when the connector pin CN3 is not inserted or the lead wire of the external vibrator is broken, the connector pin CN3 in the power source side comes to be the power source potential. When OUT3 is connected to a control circuit, if OUT3 is at the power source potential, a potential to supply the power source potential is outputted to IN1 and a potential not to supply the power source potential is given to IN2, and when OUT3 is the ground potential, the contrary is performed to automatically switch external and internal vibrators.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information transmission device, especially for the hearing impaired.

[0002]

2. Description of the Related Art According to a survey conducted by the Ministry of Health and Welfare, a person who has a deafness in his / her daily life is about 600
There are 30,000 people, and among them, there are approximately 340,000 people with hearing impairments in the 2nd to 6th grades who are recognized as physically handicapped. The presbycusis among these people is cared for and cared for and does not interfere with their lives, but people with other healthy parts of the body, for example, at home, door chimes by visitors, ringtones of telephones and faxes, Infant crying,
Alternatively, there are kitchen timers, water heater alarms, and various alarms to avoid dangers. Knocking sounds at hotels, etc. outside the home, calling at banks, post offices, hospitals, government offices, etc. It has been hindered by the difficulty in transmitting information by voice in social life such as response to.

Therefore, as disclosed in Japanese Unexamined Patent Publication (Kokai) No. 48-79515, a microphone detects a voice signal, and the signal is used to modulate and transmit a weak radio wave which does not require a license application for a radio station. However, it is known that the radio waves are transmitted to a receiver carried by the receiver, and the occurrence of an audio signal is transmitted to a hearing-impaired person by a display device such as a vibration or a lamp. However, in this method, since only weak radio waves can be used, it may not be received in the shadow of the radio waves of furniture, shields, etc., and the reliability of information transmission is low, so it is gradually being used.

When a user's code and communication information are input from a telephone, such as what is usually called a pager for calling a user wirelessly, the signal is wirelessly transmitted from the central office and the user's code is transmitted. It is known that only the user of the receiver that matches the above will receive a call with a ringing sound or the like. Furthermore, a method of transmitting a call by vibration instead of ringing has been developed and put into practical use. In addition, a mobile phone that uses radio for bidirectional information exchange is known as a cellular mobile phone.

[0005] Such a transmitter for transmitting a voice signal or a calling signal is a device that does not require a wireless license, which imposes a burden on the hearing impaired person for applying for a license and is difficult to spread. In addition, in the method of calling the telephone, when the recipient is in a place called a dead zone where radio waves do not reach, the recipient himself may not be aware of it and may not be able to confirm that the call was made. In the case of a mobile phone, the receiver receives a call from the receiver with a specific code, and if there is no call from the contacted person, it is confirmed again that the caller has no call. Communication is made to the recipients in the dead zone by contacting them by making a call. However, if this method is adopted for the transmission of information to the hearing impaired, it will be difficult in terms of social life or rapid information transmission if the important information for the hearing impaired or urgent information cannot be received at that time. Sometimes. In addition, for calls and mobile phones, in order to answer calls that do not know when there is contact, power must be supplied only to the input part of the receiver at all times, which makes it difficult to reduce power consumption. is there. In order to solve such a problem, the present inventors have earnestly studied, and as a result, always transmit a carrier wave,
A transmitter having an input terminal, which transmits a certain encoded signal when an input signal is detected, and a receiver which receives the transmitted signal and outputs a certain mode as an output corresponding to the code. Then, when the carrier wave or the encoded signal cannot be received, an information transmission device for a hearing-impaired person has been developed which outputs a mode different from the above mode.

[0006]

When transmitting information to such a device by vibration, the vibration device attached to the receiver vibrates the receiver itself and the receiver absorbs vibration energy. , The energy to be transmitted to the outside is reduced. Therefore, a considerable amount of energy is required to transmit the energy to the part in contact with the human body, the power source is consumed so much that the size of the battery required for carrying becomes large.

An object of the present invention is to provide a vibrating device excellent in the transmission efficiency of vibration energy and an information transmitting device using the vibrating device.

[0008]

SUMMARY OF THE INVENTION An information transmitting apparatus of the present invention converts voice information into an electric signal and transmits the presence of the voice signal by vibration, and an information transmitting apparatus for receiving the transmitted signal. Then, a receiver that outputs a certain mode as an output corresponding to the code, and includes a vibrator, a driving means for the vibrator, an electric wire for supplying power to the driving means, and a case supporting them. And an internal vibration device provided in the information transmission / reception device.

[0009]

The switching means may be used so that the internal vibration device is always operable when the drive power source is not connected to the external vibration device.

The number of terminals of the connector for connecting the external vibration device and the information transmitting / transmitting device is at least 4 or more, two of them are used for supplying drive power, and the other two are connected. It can also be used to generate the indicated signal.

[0011]

【Example】

Example 1 As shown in FIG. 1, an internal oscillator is installed in an information transmission / reception device, and switching between this internal oscillator and an external oscillator is performed as shown in FIG. To generate a signal indicating that the connector is connected, and that the connector has at least three or more terminals, two of which are used to supply drive power and the other one is connected. It will be used for. More specifically, from the power supply circuit Vcc to the voltage control transistor Tr1
Of the transistor Tr1 is connected to the base of the transistor Tr1 by Darlington connection, and the emitter of Tr2 is connected to the transistor Tr1.
Of the transistor Tr2 is connected through a diode D1, and the base of the transistor Tr2 is connected to a reference voltage generated from a power supply circuit Vcc through a three-terminal regulator to stabilize the power supply voltage. Is connected to the collector of the transistor Tr3 via the resistor R1, the emitter of the transistor Tr3 is commonly grounded, and the base of the transistor Tr3 is connected to the resistor R2.
Via the input IN that determines the use of the internal vibrator
1 is connected to the control circuit, and the resistor R3 is connected to the power source for the internal vibrator taken out from the collector of the transistor Tr1.
Connected to the internal vibrator via the resistor R3, the voltage generated across the resistor R3, the resistors R4 and R5, and the variable resistor VR.
The voltage divided by 1 is input to the comparator IC1, and when the current flowing through the internal vibrator becomes small, the output of the comparator IC1 is inverted and the output OUT1 informs the control circuit that the connection of the internal vibrator is opened. On the other hand, similarly to the power source for the internal vibrator, the power source for the external vibrator supplies power to the emitter of the voltage control transistor Tr11 from the power supply circuit Vcc, extracts the power source for the external vibrator from its collector, and connects the transistor Tr11 to the base of the transistor. The collector of Tr12 is connected to Darlington, and the emitter of Tr12 is connected to the collector of the transistor Tr11 by a diode D11.
Connected through the base of the transistor Tr12,
The reference voltage is connected in the same manner as the internal vibrator power supply to stabilize the power supply voltage, the emitter of the transistor Tr12 is connected to the collector of the transistor Tr13 via the resistor R11, and the emitter of the transistor Tr13 is commonly grounded. A resistor R is provided at the base of the transistor Tr13.
The input IN2, which determines the use of the external vibrator, is connected to the control circuit via 12 and the transistor Tr11
Resistor R to the power supply for the vibrator taken out from the collector of
An external vibrator is connected via 13 and its resistance R1
The voltage generated at both ends of 3 and the voltage divided by the resistors R14, R15 and the variable resistor VR11 are compared to each other by the comparator IC2.
When the current flowing to the external vibrator becomes small, the output of the comparator IC2 is inverted and the control circuit OUT2 is notified that the connection of the external vibrator is opened. The power source for the external vibrator is connected to the external vibrator using a connector. At this time,
A pull-up resistor is connected to the connector pin CN3 on the power supply side, and the connector pin CN3 on the external vibrator side is connected.
Is connected to a common ground so that the connector pin CN3 on the power supply side is
It can be set to the ground potential. Therefore,
If the connector is not fitted or the external vibrator connection line is broken, the connector pin CN on the power supply side
Since 3 becomes the power supply potential, it is possible to detect that the external vibrator is connected by connecting OUT3 to the control circuit. In this way, if OUT3 is the power supply voltage, a voltage that supplies the power supply voltage is output to IN1, and a voltage that does not supply the power supply voltage is applied to IN2.
If UT3 is at the ground potential, the opposite can be done to automatically switch between the internal and external vibrators. Such a control circuit can be realized using a microcomputer by using a program as shown in FIG. 3, and among the programs of the receiver described later,
It can be put to practical use by using it in the "data content display" part in (reception mode) of FIG.

The structure of the transmitter used in the embodiment of the present invention is shown in FIG. 4 (a), and the structure of the receiver is shown in FIG. 4 (b). "Common specifications" The frequency used in this device is 429.2.
50 MHz to 429.7375 MHz, channel spacing 12.5 kHz, number of channels 40, intermediate frequency 1
As shown in FIG. 5, the contents of one field of the signal to be transmitted are 0.7 MHz, the modulation method is FSK, and a bit synchronization signal for notifying the receiver that the data is transmitted, and a calling code to the receiver. It includes a frame synchronization signal for notification, a data signal indicating the content of transmission information, and an empty signal indicating the end of transmission.

[Summary of Configuration of Transmitter and Receiver] As shown in FIG. 4A, this transmitter has a temperature-compensated crystal oscillator (TCXO1), a phase-locked loop circuit (PLL circuit 2), and a programmable component. Voltage controlled oscillator (VCO3) having frequency circuit 31, transmission amplifier 4, program RO
M (read only memory), work memory RAM (random access memory), interface input / output port, 4-bit microprocessor (MPU5) with built-in counter timer, transmission / reception switching RF switch 6, LC Filter 7,
Microphone or switch 8, audio amplifier / filter 9, LED display 10, LCD display 10 ', reception amplifier 11, mixer 12, IF (intermediate frequency) amplifier 1
3, an antenna 71, a power supply circuit (DC-DC converter), a battery, and a charger (also serving as an AC power supply adapter). As shown in FIG. 4 (b), the receiver is a transmitter, except for the microphone 8 and the audio amplifier / filter 9, a switch, an audio amplifier 14 and a vibrator 15, and only a battery as a power source. With this configuration, the common part of the hardware can be efficiently manufactured, and the program ROM
It is possible to selectively use the transmitter and the receiver by replacing only the transmitter.

The transmitting unit includes a TCXO1, a PLL circuit 2 and a V
CO3, transmission amplifier 4, MPU5, RF switch 6, L
It is a synthesizer type circuit including a C filter 7, a microphone or switch 8, an audio amplifier / filter 9, and an antenna 71.

The receiving unit includes a TCXO1, a PLL circuit 2 and a V
CO3, MPU5, RF switch 6, LC filter 7,
This is a synthesizer-type single super-reception unit having an intermediate frequency of 10.7 MHz, which includes a reception amplifier 11, a mixer 12, an IF amplifier 13, and an antenna 71.

The synthesizer section oscillates the transmission frequency f _X or the reception local oscillation (local oscillation) frequency f _R in the VCO ₃ and outputs the oscillation signal at 12.5 kHz by the programmable frequency dividing circuit 31 incorporated in the VCO 3. And the signal oscillated by TCXO1 is 1
The PLL circuit 2 compares the phase of the signal divided up to 2.5 kHz, converts the phase difference into a DC voltage, and controls the oscillation frequency of the VCO 3. At this time, the frequency division number by the programmable frequency dividing circuit 31 is the intermediate frequency 1
Since the transmission frequency is increased by 0.7 MHz, the frequency division number is increased by 856, and the transmission frequency division number (N _X ) is 0 channel; 34,340 ₁₀ = 1000,0110,0010,0100 ₂ 39 channels; 34,379 ₁₀ = 1000,0110,0100,1011 ₂ reception frequency division number (N _R) 0 channel; since it is 33,523 ₁₀ = 1000,0010,1111,0011 _2; 33,484 ₁₀ = 1000,0010,1100,1100 ₂ 39 channels , As the frequency division number input data of the programmable frequency division circuit 31, at the time of switching between transmission and reception,
Since it is sufficient to switch the bit at the same time as the channel switching signal and give 0 to 6 bits of data for switching the channel, 7 bits of output is actually required, so a 4-bit MPU is used. So at most 2
The number of divisions can be set by outputting the number of times.

[Operation of Transmitter] The operation of the transmitter will be described with reference to the flowchart shown in FIG. When the (Initial) switch is turned on, the program starts, and registers required for initial setting, data initial processing, interrupt prohibition, etc. are performed.

(Confirmation of Utilized Frequency) When the initial processing is completed, the reception mode is set, and the frequency division number N _R (= 34, 34) of the VCO is set so that the reception frequency of the channel 0 is obtained.
0) is output from the output 51 of the MPU 5 to the programmable frequency dividing circuit 31 of the VCO 3. At this time, since the RF switch has no output from the transmitter, it is automatically connected to the receiving side, and the antenna 71, the LC filter 7, the RF switch 6, the receiving amplifier are received at the frequency to be transmitted. It is selected and amplified by the IF amplifier 13 via 11, and its output is input to the A / D input terminal 55 of the MPU 5,
5 demodulates the received signal and checks if its frequency is available for communication. If there is a signal, the frequency division number is incremented by 1, the next channel is received in the same manner as above, and this is repeated until a channel with no signal is received. And
If no frequency is available after searching all the channels, it returns to channel 0 and repeats. At this time, the capture ratio of the PLL circuit can be widened in order to reliably secure the signal in the channel. In this case, if a signal is generated in the adjacent channel, it may be received. Therefore, in order to avoid this, it is possible to increase the number of frequency divisions by two or more, that is, skip channels. Then, the interrupt prohibition performed in the initial setting is released, the obtained reception frequency division number N _R is stored, and the process proceeds to the next program.

(Transmission 0 mode) The transmission 0 mode is an operation performed to obtain a response for confirming that the receiver is not in the radio dead zone or the power switch is not turned off. The counter t is set to 0, and the reception frequency division number N _{R is set.}
To the programmable frequency dividing circuit 31 of the VCO 3 from the output 51 of the MPU 5 as the transmission frequency dividing number N _X. Next, the output of the VCO 3 is used as a carrier, and the modulated wave corresponds to 0 of the binary signal.
8 kHz, 1 corresponds to a 9.6 kHz FSK signal, the serial signal 52 from the MPU 5 as an FSK signal, is modulated and amplified by the transmission amplifier 4, and the RF switch 6 is switched to transmission by the output of the transmission amplifier 4, An antenna 71 is provided via an LC filter 7 that blocks unnecessary radio waves.
Send from At this time, the transmission data is FSK.
The signal is set to 0 only, or a code different from when a voice or the like is input to the transmitter is transmitted.

(Reception Confirmation) In order to receive a reception confirmation signal from the receiver from the receiving device, the same frequency as that transmitted via the antenna 71, the LC filter 7, the RF switch 6 and the reception amplifier 11 is received. , The output 51 from the MPU 5 outputs to the programmable frequency divider circuit 31 of the VCO 3 the frequency division number N _R corresponding to the received frequency shifted from the transmitted frequency by the intermediate frequency, and the VCO 3 extracts the received frequency signal and outputs the IF signal. The amplifier 13 selects and amplifies, and inputs the output to the A / D input terminal 55 of the MPU 5,
Demodulates the received signal, digitizes it, and verifies that the receiving device has received the data at that frequency. If the reception cannot be confirmed, an error is displayed on the LED display 10 to indicate that the receiver is in the dead band or the power switch is off.

In the (transmission 0 mode) and (reception confirmation) programs, the counter t has a predetermined count number t _X.
Repeat until. The error display when there is no confirmation signal can also be performed when this counter becomes larger than t _X and the program exits the loop of (transmission 0 mode) and (reception confirmation).

(Power Saving Mode) The power supply circuit of the transmitter is
A switching regulator that boosts the battery voltage, a switch for turning on / off the power supply, has become a charging-backup output circuit comprising a capacitor and a constant voltage diode to back up the timer circuit and the like, at every predetermined time T ₁ , A program that sets T ₁ and t _X to a counter timer incorporated in the MPU to turn on the power supply for a time t _{X which} is relatively shorter than the repetition cycle, and
When the value of the counter timer is read and when it becomes t _X and T ₁ , a program that turns on / off the power supply and voice input or switch input causes an interrupt, and the power is also supplied by the interrupt. Is controlled by a program that turns on. In addition, the output of the charger is directly connected to the input terminal of MPU5, and the type of power supply is judged by the voltage of the input terminal, and this (power saving mode)
The program can be made to work only when using only the battery, power can be saved for calls made outside the home, and it can be transmitted at home to improve the reliability of information transmission. Also, only MPU5 and TCXO1
The power supply is backed up, and only the timer counter and the clock for it are always working. In addition, this part is an MP for storing the state before the power was turned off.
It is necessary to perform processing such as saving the register / counter of U5, backing up the memory in MPU5, and the input circuit must be operated at all times when voice input or switch input is made. It is preferable that these circuits that are always operating consume as little current as possible.
Even if the supply of power is stopped, it is preferable to operate by the supply from the capacitor stored during the supply. Also, since the power supply circuit has a low operating voltage at the voltage of the battery,
It is preferable to use a DC-DC converter of the type that boosts the voltage to the required voltage.

(Data Transmission Mode) In the data transmission mode, when an input is detected, a code determined in advance according to the type of input is converted into an FSK signal to be a modulated wave, which is modulated and amplified by the transmission amplifier 4, Transmission is performed from the antenna 71 via the RF switch 6 that switches to transmission by the output of the transmission amplifier 4 and the LC filter 7 that shields unnecessary radio waves.

When an input signal is input, an interrupt signal is generated, a code indicating that it is an input signal is prepared as data, the stored transmission frequency division number N _X is output to VCO 3, and VCO 3 , Output to the carrier input of the transmission amplifier 4,
The MPU 5 outputs the data signal as an FSK signal following the bit synchronization signal and the frame synchronization signal, and outputs the output 5 of the MPU 5.
2 is serially output to modulate the carrier wave of the transmission amplifier 4. When this input signal is a voice signal, it is detected by the microphone 8 and the signal is passed through only a necessary band, or noise and excessive voice are processed, and the MPU 5 is passed through an audio amplifier / filter 9 for amplification.
Is input to the A / D input 53 and converted into a digital value. The converted audio signal produces a signal for transmission and is also displayed on the LED display 10. Also, instead of voice signal input by this microphone,
It is also possible to use a signal for calling by directly turning on / off the power supply voltage to the input terminal 53 of the MPU with a switch.

In this program, when a voice or the like is input, an interrupt occurs, the register / counter value used by the MPU up to that point is saved to another memory, exits the loop, and After transmitting, the value of the register / counter is returned to the original value and the process returns to the inside of the loop. As described above, this interrupt is prohibited from the initial setting to the determination of the frequency to be used, and can be performed thereafter after the interrupt prohibition is released. In this case, the series of operation times can be estimated from the number of signal bits and the clock of the MPU in consideration of the presence of an interrupt. Therefore, the count number t _X should be uniquely determined in consideration of the accuracy of the parts. You can Also, as for the time T ₁ in the power saving mode, the safe operation time can be obtained from the count number t _X , the capacity of the capacitor used for backup and the current consumption during backup.

Further, instead of the (transmission 0 mode), the portion A in FIG. 6 can be used so that the input processing by the interrupt is not performed, and a little after the input signal from the microphone or the switch 9. Delay time (several 100 mse
Although there is about c), the program can be simplified. In this case, since all the programs are sequential, the interrupt prohibition process is unnecessary.

(Error Display) The error display, once displayed, is preferably continued until reset. To reset this error display, set the counter value to 1 after the "confirmation signal" of (receipt confirmation).
Interrupts must be disabled until the number increases,
If an interrupt occurs during this period, the error display will be reset despite the arrival of radio waves, so interrupts must be prohibited.

[Operation of Receiver] The operation of the receiver will be described with reference to the flowchart shown in FIG. When the (Initial) switch is turned on, the program starts, and registers required for initialization, data initial processing, counter reset, etc. are performed.

(Reception Mode) When the initial process is completed, the reception mode is set, and the frequency division number N _R (= 33,484) of the VCO is set so that the reception frequency of channel 0 is obtained.
The output 51 of the MPU 5 outputs it to the programmable frequency dividing circuit 31 of the VCO 3. At this time, since the RF switch has no output from the transmitter, it is automatically connected to the receiving side, and the antenna 71, the LC filter 7, the RF switch 6,
It is selected and amplified by the IF amplifier 13 via the reception amplifier 11, and its output is input to the A / D input terminal 55 of the MPU 5, and the MPU 5 demodulates the received signal, and the bit synchronization shown in FIG. The registered data is compared, and if they match, the frame synchronization is compared with the data registered in advance. If they match, the frequency division number N _R at that time is stored, and the process proceeds to the next step. When the bit synchronization or the frame synchronization (ID code) does not match, the frequency division number is incremented by one, reception is performed, and this is repeated until the channel where the bit synchronization and the frame synchronization match. Then, if all channels are searched and there is no frequency being transmitted, the counter t ₁ is read and compared with a predetermined count number T. If it does not exceed T, the channel is returned to channel 0, and repeat. If the count exceeds T, the radio wave from the transmitter has not arrived,
The display indicating that the user is in the radio dead zone is displayed on the LED display 10, the counter t ₁ is reset, and the program returns to the beginning. At this time, the capture ratio of the PLL circuit 2 may be widened similarly to the transmitter in order to ensure the signal in the channel, and in this case, when a signal is generated in the adjacent channel, it is received. In order to avoid this, it is possible to increase the number of frequency divisions by two or more, that is, skip channels. The number of channels to be skipped at this time must match the number of transmitters.
If the bit synchronization and the frame synchronization (ID code) match, further data is analyzed, and a predetermined output corresponding to the data is displayed on the LED display 10.

(Transmission Mode) In the above-mentioned (Reception Mode), there is ID code data of this receiver, further data is analyzed, and after the communication contents are displayed, a signal of (reception confirmation) that reception is possible is given. , To send to the transmitter,
A predetermined confirmation code is converted into an FSK signal to form a modulated wave, which is modulated / amplified by the transmission amplifier 4 and switched to transmission by the output of the transmission amplifier 4.
Then, the signal is transmitted from the antenna 71 through the LC filter 7 that shields unnecessary radio waves.

(Power Saving) The power supply circuit of the receiver is a switching regulator for boosting the battery voltage, a switch for turning on / off the power supply, a charging / backup output including a capacitor for backing up the timer circuit and a constant voltage diode. It consists of a circuit and T ₂
Each time, in order to turn on the power supply for a time t _R that is relatively shorter than the repetition cycle, a program that sets T ₂ and t _R to the counter timer built into the MPU and starts it, and the value of the counter timer are read. , T _R and T ₂ , respectively, are controlled by a program for turning on / off the power supply. Also, MPU5
And TCXO1 only have their power supplies backed up, and only the timer counter and its clock are always operating. Furthermore, this part requires processing such as saving the register / counter of the MPU 5 for storing the state before the power supply is stopped and backing up the memory in the MPU 5. It is preferable that these circuits that are always operated have a current consumption as small as possible, and that even if the power supply is stopped, a circuit that operates by the supply from the capacitor stored during the supply is preferable. Further, since the operating voltage is low at the voltage of the battery, it is preferable to use a power supply circuit of the DC-DC converter type for boosting the voltage to a required voltage.

In this case, since a series of operation times can be estimated from the number of bits of the signal and the clock of the MPU, the accuracy of parts is taken into consideration, and the number of counts t of the transmitter is further increased.
_From the relationship with _X , it must be set so that reception can be performed at least once within the cycle T, and the count number t _R can be uniquely determined. In this case, at least t _X >
t _R and T> T ₂ . Further, as for the time T ₂ in the power saving mode, the safe operation time can be obtained from the count number t _R , the capacity of the capacitor used for backup and the current consumption during backup.

(Error Display) Similar to the transmitter, the error display is preferably carried out once it is displayed until it is reset. In this way, immediately after the power switch is turned on. Error message is displayed, but if the transmitter and the receiver start operating and the transmitter and receiver are normal, the error message can be reset in a considerably short time.

[0034]

As described above, by attaching the vibrator to the case away from the drive circuit main body, the energy of vibration can be efficiently converted into the energy to be transmitted, and the electric wire to the external vibrator may be disconnected. Since the internal vibrator operates when not connected, the reliability of the information voltage is excellent.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a circuit diagram for switching between an internal oscillator and an external oscillator used in an embodiment of the present invention.

FIG. 3 is a flowchart showing a program for automatically switching between an external vibrator and an internal vibrator used in an embodiment of the present invention.

FIG. 4 is a block diagram of an information transmission device used in an embodiment of the present invention, in which (a) is a transmitter and (b) is a receiver.

FIG. 5 is a diagram showing a structure of data used in an example of the present invention.

FIG. 6 is a flowchart showing a program of the transmitter used in the embodiment of the present invention.

FIG. 7 is a flowchart showing a program of the receiver used in the embodiment of the present invention.

Claims (3)

[Claims] 1. An information transmission / transmission device for converting voice information into an electric signal and transmitting the presence of a voice signal by vibration, and a signal transmitted by the information transmission / reception device, which is a constant output as an output corresponding to the code. A receiver for performing mode output, which includes an oscillator, a drive unit for the oscillator, an electric wire for supplying electric power to the drive unit, and an external vibrating device including a case for supporting them, and an information transmission receiver thereof. And an internal vibration device provided in the information transmission device. 2. The information transmission device according to claim 1, further comprising a switching means so that the internal vibration device can always operate when the drive power source is not connected to the external vibration device. 3. A connector for connecting an external vibration device and an information transmission device is provided with at least three terminals, two of which are used for supplying drive power, and the other one is connected to the connector. 3. The information transmission device according to claim 1, wherein the information transmission device is used to generate a signal indicating that.