JPS6218176B2 - - Google Patents

Description

Detailed Description of the Invention The present invention relates to a rhythm transmission device using skin stimulation, and more specifically, the present invention relates to a rhythm transmission device using skin stimulation. It acts as a substitute.

Previously, a rhythm transmission device using skin stimulation was proposed that converted electric power proportional to the instantaneous amplitude of sound into mechanical vibration. A diaphragm driving device is driven by electric power, and the intensity, rhythm, etc. of sound are transmitted to the human body via the diaphragm that is in contact with the skin of the body. This device converts incoming sound into an electrical signal, then converts it into mechanical vibration proportional to that signal, and transmits the vibration to the human body. This method requires a plate driving device, etc., and has the disadvantage that the device is complicated and expensive.

The present invention eliminates the above-mentioned drawbacks and provides a simple and inexpensive rhythm transmission device using skin stimulation by supplying a modulated wave corresponding to the intensity and rhythm of the sound to the human body. An incoming sound sensing device consisting of a converter that converts incoming sound into an electrical signal, a smoothing circuit that converts the electrical signal of the incoming sound into a rhythm signal corresponding to the rhythm of the incoming sound, and a low frequency carrier wave. The present invention is characterized in that it comprises a modulation circuit that modulates the wave with the rhythm signal, and an electrode that is connected to the modulation circuit and that contacts or pierces the skin of the human body in order to supply the modulated wave to the human body.

In addition, the frequency of the said "low frequency" means the frequency of the range used by a low frequency treatment device.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

3 is an incoming sound sensing device, and microphone 3-A
and a smoothing circuit 3-B connected to it,
4 is a carrier wave generation circuit, which is formed by an unstable multivibrator, and whose frequency is set to a value of about 100Hz to 1KHz. 1 is a modulation circuit that gives a temporal change to the carrier wave to include a rhythm signal corresponding to the rhythm of the incoming sound, and 2 is an electrode that provides electrical energy to the human body by outputting a modulated wave, which is used in general low-frequency treatment equipment. It uses something similar to what is currently used, and touches or pierces the human skin.

Note that various sound sources such as a radio receiver, television receiver, tape recorder, video recorder, etc. can be used instead of the microphone 3-A.

Further, instead of the unstable multivibrator of the carrier wave generation circuit 4, a sine wave oscillator, a square wave oscillator, or a pulse oscillator may be used.

Next, the operation will be explained.

The periodic pulse of the unstable multivibrator obtained by the carrier wave generation circuit 4 is transmitted to the primary coil 6 of the pulse transformer 6 interposed between the collector 5-C of the output transistor 5 and the positive power supply terminal 4-A.
-A, is induced into the secondary coil 6-B, and is applied to the base 8-B of the transistor 8.

However, when there is no incoming sound, the secondary voltage of the pulse transformer 6 is the base 8-B of the transistor 8.
Even if input to
The negative voltage divided by 0 and 0 is applied to the transistor 8
Since the voltage is supplied to the base 8-B of the transistor 8, the transistor 8 maintains the cut-off state.

On the other hand, the microphone 3 of the incoming sound sensing device 3
The incoming sound detected at A is converted into a rhythm signal current corresponding to the rhythm of the incoming sound by the smoothing circuit 3-B, and the output current is sent to the transistor via the primary coil 6-B of the pulse transformer 6. 8 base 8-
B and is superimposed on the output of the astable multivibrator. This superimposed base input turns transistor 8 on.

The output of the amplitude modulation circuit 1 including this transistor 8 is transmitted to the electrode 2 via the pulse transformer 7.

Note that by adjusting the resistors 9 and 10 of the amplitude modulation circuit 1 and the bias voltage to appropriate values, the transistor 8 can be kept in an on state at all times. At this time, the time constant of the carrier wave generation circuit 4 is appropriately selected, the frequency is selected to be within the range used by the low frequency treatment device, for example several hundred hertz, and the carrier wave is used for the low frequency treatment. Furthermore, if a carrier wave of the above frequency is used when there is incoming sound, therapeutic effects can be expected as well as the rhythm and strength of the sound.

In this way, according to the present invention, the incoming sound is composed of a converter that converts incoming sound into an electrical signal, and a smoothing circuit that converts the electrical signal of the incoming sound into a rhythm signal corresponding to the rhythm of the incoming sound. A sound sensing device, a modulation circuit 1 that modulates a low frequency carrier wave with the rhythm signal, and a device connected to the modulation circuit 1 that contacts or pierces the skin of the body in order to supply the modulated wave obtained from the circuit to the human body. Since it is equipped with an electrode 2 that can be used by a hearing-impaired person, it is possible to detect the rhythm of the sound through skin sensation, replacing the sense of hearing. This has the advantage that the device is simple and can be manufactured at low cost. Furthermore, when used as a low-frequency therapy device by a person without hearing impairment, receiving the therapy while sensing the rhythm of the sound can be expected to increase the effect of the therapy alone.

In addition, if you use visual devices such as television receivers and video recorders, as well as conventional tactile hearing aids that use mechanical vibrations, you can enjoy the effects of sound even more because you have both visual and electrical skin sensations. For people with hearing impairments, electrical skin sensation and tactile sensation can be used as an alternative to hearing to assist in sound detection.

[Brief explanation of the drawing]

The drawing is a circuit diagram of an embodiment of the present invention. 1... Amplitude modulation circuit, 2... Electrode, 3... Incoming sound sensing device, 3-A... Microphone, 3-B
...Smoothing circuit.

Claims (1)

[Claims] 1. A converter that converts incoming sound into an electrical signal, a smoothing circuit that converts the electrical signal of this incoming sound into a rhythm signal corresponding to the rhythm of the incoming sound, and a low frequency carrier wave that is modulated with the rhythm signal. A rhythm by skin stimulation characterized by comprising a modulation circuit 1 and an electrode 2 connected to the modulation circuit 1 and brought into contact with or penetrated into the body skin in order to supply modulated waves obtained from the circuit to the human body. transmission device.