JP3401217B2 - Low frequency stimulator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low frequency stimulator capable of giving a low frequency stimulus to a human body through an earphone of a music player by applying a low frequency signal to the housing. is there.

[0002]

2. Description of the Related Art Conventionally, a device for generating a low-frequency stimulus signal based on a sound signal reproduced by a tape recorder or the like and energizing the low-frequency stimulus signal to the human body through electrodes to give a stimulus to the human body has been known. is there. Such a conventional device can listen to music through a speaker or headphones such as a tape recorder, and the electrodes provided separately from the headphones and the speaker are energized with the low-frequency stimulus signal so that the electrodes are worn on the waist or the like. It was intended to stimulate the human body by applying it on the.

[0003]

By the way, in the above-mentioned conventional device, since the low frequency signal generated from the voice signal is simply given to the human body, there is little change as a stimulus given to the human body, and the human body side does not respond to the stimulus. Once used, there was a problem that the effect of stimulation decreased.

Further, since the sound source is a tape player or a compact disc player, the device becomes large in size, which is inconvenient to carry, and when the sound skips due to vibration or the like, the low-frequency stimulus signal is disturbed, which is appropriate. There was a problem that the human body could not be stimulated.

Further, the above-mentioned conventional device is inconvenient to handle because the electrodes are provided separately from the headphones and the like, and it is mainly used for treatment with an indoor bed or the like, and when going out or walking. It was difficult to easily receive low frequency stimulation at times.

In order to solve the above-mentioned conventional problems, the present invention provides a low-frequency stimulator capable of arbitrarily selecting a plurality of low-frequency signals to be given to the human body, small in size, convenient to carry, and free from skipping. The purpose is to provide.

[0007]

In order to achieve the above object, the present invention firstly provides an audio signal reproducing means for reproducing a signal from an audio signal generating source to generate an audio signal, and the audio signal generating means. A low-frequency audio signal generator that extracts a low-frequency component from the audio signal obtained based on the signal from the source to generate a low-frequency audio signal, and a low-frequency pulse signal that generates the low-frequency pulse signal Low-frequency signal generating means including a low-frequency superimposed signal generating portion capable of generating a low-frequency superimposed signal by superimposing on the signal, and a protrusion and an ear hole for mounting in the ear hole
And a speaker portion which is composed of a conductive portion having a flat portion in contact with the periphery of the speaker and which can reproduce by receiving an audio signal from the audio signal generating means. An earphone capable of receiving each low frequency signal and energizing the conductive portion, and transmitting an audio signal from the audio signal generation source to the speaker section of the earphone and the low frequency signal from the low frequency signal generating means. and a control means capable of delivering selectively conductive portion of the earphone either the speech signal or the low frequency superimposed signal, the low frequency
Level adjusting means capable of adjusting the signal level of the wave sound signal
The control means provides the low-frequency superimposed signal to the earphone.
Level above when sending to the conductive part of
The level of the low frequency audio signal based on the operation of the adjusting means.
It is configured by a low-frequency stimulator characterized by increasing and decreasing .

Therefore, by reproducing the voice signal from the voice signal generation source in the speaker portion of the earphone, the voice signal such as music can be heard. When it is desired to receive a stimulus by a low frequency audio signal, the control means outputs a low frequency component from the audio signal obtained based on the signal from the audio signal generating source, when the mode (S mode) for transmitting the low frequency audio signal is set. The low-frequency audio signal is taken out to generate a low-frequency audio signal, and the low-frequency audio signal generator sends the low-frequency audio signal to the conductive portion of the earphone. Then, a low-frequency audio signal is energized from the conductive portion of the earphone to the human body through the auricle, and a low-frequency stimulus corresponding to the level of the low-frequency audio signal can be received. At this time, the listener can receive a comfortable low-frequency stimulus rich in changes in synchronization with the low-frequency audio signal of the music while listening to the music through the earphone. Next, when it is desired to receive a stimulus by the low-frequency superimposed signal, the mode for transmitting the low-frequency superimposed signal (S + P mode) is set, and the control means outputs the low-frequency signal from the audio signal obtained based on the signal from the audio signal source. A low frequency pulse signal is generated together with a low frequency pulse signal, and the low frequency pulse signal is combined with the low frequency voice signal to form a low frequency superimposed signal, which is sent to the conductive portion of the earphone. Therefore, the low-frequency superimposed signal can be conducted from the auricle to the human body from the conductive portion of the earphone attached to the ear, and the low-frequency stimulation corresponding to the level of the low-frequency superimposed signal can be received. At this time, the listener can receive a comfortable low-frequency stimulus by the low-frequency superimposed signal while listening to music with the earphone.

Secondly, the audio signal generating source is an MP3 reproducing device, and is constituted by the low frequency stimulating device according to the first invention.

Therefore, the low frequency audio signal and the low frequency superimposed signal can be generated based on the digital data such as music reproduced from the MP3 reproducing device. Since such an MP3 reproducing device has no driving part and no sound skipping occurs, the entire device can be downsized and a low frequency stimulating device free from adverse effects due to sound skipping can be realized.

Thirdly, the low-frequency signal generating means is provided with a high-level low-frequency pulse signal generating section for generating a high-level low-frequency pulse signal having a voltage level higher than that of the low-frequency pulse signal. The low-frequency stimulator according to the first or second invention, wherein the high-level low-frequency pulse signal is sent to the conductive portion of the earphone when the audio signal is reproduced or stopped from the signal source. It is composed of

Therefore, when it is desired to receive a stimulus by a high-level low-frequency pulse signal, the control means outputs the high-level low-frequency pulse signal (P mode). Generate a low frequency pulse signal. Since such a high-level low-frequency pulse signal is sent to the conductive part of the housing of the earphone, the high-level low-frequency pulse signal is conducted from the auricle to the human body from the conductive part of the earphone attached to the ear. , It is possible to receive low frequency stimulation according to the level. At this time, the listener can be stimulated by the high-level low-frequency pulse signal when playing music or the like from the speaker unit of the earphone or when stopping.

Fourth, there is provided level adjusting means for independently adjusting the signal level of the low frequency audio signal and the signal level of the high level low frequency pulse signal, and the control means controls the low frequency superimposed signal of the earphone. The low frequency stimulator according to the third aspect of the invention, wherein the level of the low frequency audio signal is increased or decreased based on the operation of the level adjusting means when the low frequency stimulus is being sent to the conductive portion. It is composed.

Mode in which a low frequency audio signal is generated (S
Mode) or a mode in which a high level low frequency pulse signal is generated (P mode), the listener can independently adjust the signal level of each low frequency signal by adjusting the level adjusting means, Further, in the mode (S + P mode) in which the low-frequency superimposed signal is generated, by adjusting the level adjusting means,
Only the signal level of the low frequency audio signal can be adjusted. As a result, the listener can increase or decrease only the low-frequency audio signal level synchronized with the low-frequency sound of the music when receiving the stimulation by the low-frequency superimposed signal, and only the stimulus synchronized with the low-frequency sound of the music. Can be changed to your liking.

Fifth, when the low frequency audio signal, the low frequency superimposed signal or the high level low frequency pulse signal is being sent to the conductive portion of the earphone, the signal level during sending is constant. A boost function for increasing the time to a predetermined level is provided, and the control means has the boost function.
After the signal level is increased for a certain period of time based on turning on, the boost function is canceled to return the signal level to the level before boosting, and the boost function is canceled.
After that, the boost function is invalidated for a predetermined period of time, and the low frequency stimulator according to the third or fourth invention is characterized.

Therefore, in each of the above modes, when the listener turns on the boost function, the control means causes the control means to generate the low frequency signal (low frequency audio signal, high level low frequency pulse signal or low frequency superimposed signal). ), For example, is doubled. Thus, when the current is difficult to flow due to the skin resistance, the boost function allows the current to flow by breaking the skin resistance, and the listener can be stimulated by the appropriate current. Further, since the control means can turn off the boost function after turning on the boost function, for example, after 3 minutes, and automatically restore the signal level to the level before the boost, the operator can stop the boost function. You do not have to do anything.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes an audio signal reproducing section (audio signal reproducing means), which is a known MP3 in this embodiment.
Playback device, that is, the audio portion Lay of MPEG-1
An audio file reproducing device created based on the er3 standard is used. The audio signal reproducing unit 1 uses a digital data to convert a music signal to a smart medium (registered trademark).
Standard) and the like stored in the semiconductor memory 2, the CPU 9 demodulates the music data read from the memory 2 by the MP3 decoder 3, and the PCM decoder 4 demodulates and converts it into a sound signal (a signal such as music in a sound frequency band). After the harmonics are cut by the low-pass filter 5, speaker units 25a and 26a of earphones 25 and 26 (see FIG. 2) described later are passed through the amplifier circuit 6.
To reproduce the audio signal such as music.
In this embodiment, the semiconductor memory 2, the CPU 9 and the M
The P3 decoder 3, the PCM decoder 4, etc. constitute a music signal generation source. Compared to a cassette tape player or a CD player, the MP3 reproducing device does not have a driving part such as a rotating part, can be made smaller and lighter, and does not cause skipping of sound, and thus has a low frequency according to the present invention. Suitable as a music signal source for stimulators. Although music is used as the signal source in this embodiment, a voice of a person other than music, a cry of an animal, a natural sound, or the like may be used.

Reference numeral 7 is a low-frequency signal generating section (low-frequency signal generating means).
Is a D / A conversion circuit for converting the music data from the semiconductor memory 2 into an analog audio signal in the audio frequency band under the control of the CPU 9 in the S mode described later,
0 is the audio signal converted by the D / A conversion circuit 8
A low-pass filter for passing a low-frequency from a mid-range of 16 kHz or less to a low-frequency audio signal (an example of the waveform is shown in FIG. 6), 11 is a signal level of the low-frequency audio signal passed through the low-pass filter 10 ( A volume for changing the voltage level), and 12 is an amplifier for the low frequency audio signal. Incidentally, in the present embodiment, the CPU 9, D
/ A conversion circuit 8, low-pass filter 10, volume 1
1, the amplifier 12 and the like constitute a low frequency audio signal generator. In the present embodiment, the low pass filter 10 has a frequency of 16 kHz or less, but the frequency is not limited to this and may have a lower frequency.

In the S + P mode, which will be described later, 13 is several tens Hz (10 H in this embodiment) generated by the CPU 9.
z) low frequency pulse signal for S + P mode (see FIG. 8)
Is a volume for changing the signal level (voltage level) of the low frequency pulse signal, and 14 is an amplifier for amplifying the low frequency pulse signal. The low frequency pulse signal is combined with the low frequency audio signal at point a to obtain a low frequency signal. It is configured to be able to form a superimposed signal. That is, in the S + P mode, the low frequency audio signal shown in FIG. 6 and the low frequency pulse signal shown in FIG. 8 are combined. The S + P mode low frequency pulse signal (see FIG. 8) has different levels alternately.
One impulse signal is repeated at a cycle of 100 ms, and each one impulse signal S1 stimulates the auricle and exerts effects such as pain relief. In the present embodiment, the CPU 9, volume 13, amplifier 1
A low-frequency superimposed signal generator is composed of points 4 and a.

Reference numeral 15 indicates the above-mentioned CP in the P mode described later.
Dozens of Hz generated by U9 (10 Hz in this embodiment)
High-level low-frequency pulse signal for P mode of
(A)) Volume for changing the voltage level,
Reference numeral 16 is an amplifier for the pulse signal, and 17 is a voltage level booster for the high-level low-frequency pulse signal.
V) is a booster circuit. As shown in FIG. 7A, the high-level low-frequency pulse signal for the P mode is formed by repeating four impulse signals whose levels have been gradually lowered at a cycle of 100 ms. Has a maximum of 40 V and gives a considerably stronger stimulus than the low frequency pulse (maximum 3 to 4 V) in the S + P mode. Then, each impulse signal S2 of the low-frequency pulse signal gives a stimulus to the auricle through the earphone and obtains effects such as pain relief as in the S + P mode. The voltage level of the high-level low-frequency pulse signal for the P mode is made higher than that of the low-frequency pulse signal of the S + P mode is that the reproduction of music in the audio signal reproducing section 1 is stopped in the P mode. Is possible,
The voltage level is set high so that sufficient sensory stimulus can be obtained only by the low-frequency pulse signal when the music is stopped. In the present embodiment, the CPU 9, volume 15, amplifier 16, booster circuit 17 are provided.
A high-level low-frequency pulse signal generator is constituted by the above.

Reference numeral 18 denotes an amplifier for amplifying the low frequency audio signal or the low frequency superimposed signal, and the amplifier 1
The low-frequency audio signal passed through 8, the low-frequency superimposed signal, or the high-level low-frequency pulse signal passed through the booster circuit 17 is
It is sent to the housing of earphones 25 and 26 described later via the output switching circuit 19.

Reference numeral 20 denotes an operation switch, which is provided with a mode changeover switch 21, a level adjustment switch 22, and a boost switch 23 in association with the low frequency signal generator 7. By operating the mode selector switch 21, the low frequency audio signal (FIG. 6) is transmitted to the earphones 25, 2
No. 6 for S mode, P mode for sending the high-level low-frequency pulse signal (FIG. 7A) to the earphones 25 and 26, low-frequency audio signal for the low-frequency audio signal (FIG. 6) and S + P mode. It is possible to switch between the S + P mode in which the low frequency superposed signal obtained by combining (FIG. 8) is sent to the earphones 25 and 26, and the off mode in which the sending of the low frequency signals is stopped, and the CPU 9 is in this mode. Based on the mode switching signal from the changeover switch 21, in the S mode, the transmission of the low frequency pulse signals for the P mode and the S + P mode is stopped and only the music pulse signal is transmitted. In the P mode, the low frequency pulse signal for the S + P mode is transmitted. The high-frequency low-frequency pulse signal for P mode is transmitted only by stopping the transmission of the frequency pulse signal and the music pulse signal. Bell The low frequency pulse signal is stopped from being sent, both the low frequency pulse signal and the music pulse signal for the S + P mode are sent out, and in the off mode, the music pulse signal and the above low frequency pulse signals are stopped from being sent out. Control (see P1 to P5 in FIG. 5).

Further, by operating the level adjusting switch 22 in the S mode, the CPU (control means) 9
Controls the volume 11 to increase / decrease the signal level of the low-frequency audio signal (see P5 and P8 in FIG. 5), and operates the switch 22 in the P mode to control the CP.
U9 controls the volume 15 to increase or decrease the voltage level of the high-level low-frequency pulse signal (see P17, P17 in FIG. 5).
18) Further, in the S + P mode, the volume 11 is controlled to control the voltage level of the low frequency audio signal of the low frequency superimposed signal (see P5, P24, P7 and P8 in FIG. 5). In this embodiment, the level adjustment switch 2
2, the level adjusting means is constituted by the volumes 11, 15, 24 and the like.

When the boost switch 23 is pressed, the CPU
9 is volume 2 in S mode and S + P mode
4 to control the amplification degree of the amplifier 18 to increase the maximum potential of the low-frequency audio signal or the low-frequency superimposed signal to, for example, approximately twice (predetermined level) (FIG. 5, P9, P).
10, P19, P20). In the P mode, when the boost switch 21 is pressed, the CPU 9 controls the volume 15 to increase the maximum potential of the high level low frequency pulse signal for the P mode from 40V to 60V. Further, the CPU 9 uses the boost switch 23.
The timer of the built-in timer is started at the same time as the operation of, and the boost function is automatically released after the lapse of, for example, 3 minutes or 1 minute (constant time) to restore the voltage level to the state before the boost (FIG. 5, P11, (See P12, P21, P22). Further, thereafter, for example, for 10 minutes, control is performed so as to disable the boost function (see P13 and P23 in FIG. 5). This boost function is for increasing the potential to break the skin resistance of the ear and facilitate the flow of a weak current when the current is difficult to flow due to the skin resistance at a normal potential. Further, once the skin resistance is broken, the current easily flows even at the normal potential, so that the boost function is automatically canceled after 3 minutes, and the boost function cancellation operation by the operator is unnecessary.
Note that the boost amount, the duration of the boost function, and the duration of the boost function invalidity are not limited to this, and boost amounts or times other than these can be set. still,
When the power is turned off, the control for canceling the invalidation of the boost function is performed (see P14 and P15 in FIG. 5). Incidentally, the operation switch 20 is related to the music signal reproducing section 1 and is a normal M switch.
As a P3 player, there are provided switch groups 27 for playing, stopping, sending, returning music, and volume of music (see FIG. 4).

As described above, the CPU (control means) 9 takes in music data from the semiconductor memory 2, reproduces music, sends music data to the D / A conversion circuit 8, and low-frequency pulse signals in each mode. And the control of the volumes 11, 15, 24, etc. in each mode, and various controls relating to the mode switching and boosting functions.

In FIG. 2, 25 is a right earphone, 26
Is the left earphone, and the speakers 25a, 2 inside are respectively
6a is supplied with an audio signal such as music from the audio signal reproducing section 1 to reproduce music. Further, these earphones 25 and 26 have conductive metal plating layers (conductive portions) 25b and 26b in which a surface of a synthetic resin casing is plated with nickel and further plated with gold. The line L1 of the low frequency audio signal, the low frequency pulse signal or the low frequency superimposed signal is connected to the metal plating layer 25b of the earphone 25 at the point b, and the earphone 26
The ground line L2 for each low frequency signal is connected to the metal plating layer 26b at the point c. Therefore, when the earphones 25 and 26 are attached to the ear, the speaker 2
5a, 26a can be heard, and the low frequency superimposition signal or the low frequency pulse signal input to the points b and c is energized from the auricle to the human body through the conductive metal plating layers 25b, 26b, and its voltage is applied. It is possible to give a low frequency stimulus according to the level and the current level.
More specifically, the earphones 25 and 26 are shown in FIG.
The shape is as shown in FIG. 1 to (f) (the left earphone 26 is shown for convenience because it is symmetrical), and the conductive metal plating layer 26b is applied to the entire housing. The earphone 26 has a protrusion 26c for mounting in an ear canal and a flat portion 26d for contacting an auricle (around the ear canal) formed around the protrusion 26c. 26d contacts the auricle and the flat portion 26d
A low frequency stimulus can be applied to the auricle through the conductive metal plating layer 26b. There are many acupuncture points (acupuncture points) in the ear, which may give physical irritation to the pinna and other trigone fossa, but rather than to the skin of the entire ear. Since it is said that the physical stimulation to the concentrated auricle is effective, it should be possible to give an effective stimulation to the auricle instead of the headphone type that stimulates the skin of the entire ear. This is an earphone type having the flat portion 26d. The earphones 25, 26 have conductive metal plating layers 25d, 26d as described above, conductive coating on the surface of the housing, or the entire housing made of conductive resin. May be.

FIG. 4 shows the appearance of an embodiment of the low-frequency stimulator according to the present invention. 28 is an indicator of each mode, 29 is a card slot of a memory card, and 30 is an earphone jack. is there.

The present invention is configured as described above, and its operation will be described below with reference to the flowchart of FIG.

First, in the case of reproducing only music, when the reproducing switch of the audio signal reproducing section 1 of the operation switch 20 is operated, the CPU 9 takes in the music data from the semiconductor memory 2, and the music data is MP3 decoder. 3 and demodulated and converted into an audio signal by the PCM decoder 4 and supplied to the speaker units 25a and 26a of the earphones 25 and 26 via the low-pass filter 5 and the amplifier 6, and the earphones 25 and 26 are attached to the ears. By doing so, music or the like can be heard from the earphone.
At this time, if the mode selector switch 21 is set to the off mode, the low frequency pulse signal is not generated and the normal M
Can be used as a P3 player (Fig. 5, P
1, P2).

(1) Operation in S mode Next, when it is desired to obtain a low frequency stimulus in the S mode, the mode changeover switch 21 may be operated to enter the S mode. Then, the S mode switching command signal is sent from the switch 21 to the CPU.
9, the CPU 9 takes in music data from the semiconductor memory 2 based on the command signal, generates a music pulse based on the data, and sends the pulse to the D / A conversion circuit 8 (FIG. 5). P1, P3, P6).
At this time, the low frequency pulse signals for the S + P mode and the P mode are not transmitted. The D / A conversion circuit 8 converts the music pulse into an audio signal, and the audio signal passes through the low-pass filter 10 to become a low-frequency audio signal in the middle and low frequencies of 16 kHz or less, which is set by the volume 11. After being set to a predetermined voltage level, it is amplified by the amplifiers 12 and 18 and supplied to the conductive metal plating layers 25b and 26b of the housings of the earphones 25 and 26. The low-frequency audio signal is applied to the flat parts 25d, 26 of each housing from the points b and c.
The auricle is energized through the conductive metal plating layers 25b and 26b of d, and the human body is stimulated according to the voltage level and the current level. Further, since the music is reproduced by the audio signal reproducing section 1, in the S mode,
The listener uses the speaker units 25a, 26 of the earphones 25, 26.
You can listen to music from a.
Through the housings 5, 26, the ear can receive the low frequency stimulus by the low frequency audio signal. At this time, the low-frequency audio signal, as shown in FIG. 6 as an example of the waveform thereof, has a signal S1 having a particularly high voltage level that appropriately stimulates the auricle, and a signal having such a high level is transmitted to the speaker 2
Since it is synchronized with the mid-range and low-range sounds of 16 kHz or less of the music reproduced in 5a and 26a, the listener receives a rhythmical comfortable low-frequency stimulus synchronized with the low-range sounds while listening to the music. You can get the effect of relaxing the mood.

When the level adjustment switch 22 is operated in the S mode, the CPU 9 controls the volume 11 to increase or decrease the voltage level of the low frequency audio signal.
(See FIG. 5, P7, P8). Therefore, the speaker unit 25a,
The operator can change only the voltage level of the low-frequency audio signal independently of the volume of music or the like from 26a, and only the level of stimulation by the low-frequency audio signal received by the auricle while listening to the music or the like. Can be adjusted to your taste, and you can receive a variety of stimuli.

If it is difficult for current to flow due to skin resistance, the boost switch 23 may be turned on. Then,
The CPU 9 increases the amplification degree of the amplifier 18 via the volume 24 to set the potential of the low-frequency audio signal to about twice, and starts the time measurement of the built-in timer. Then, the boosted state is continued for 3 minutes based on the timing of the timer, and the volume 24 is returned to the original set level when 3 minutes have elapsed (see P9 to P12 in FIG. 5). Therefore, the operator has the boost switch 23 in the S mode.
By pressing, you can break the skin resistance and facilitate the flow of current, and you can be stimulated by an appropriate current level. Further, the CPU 9 further starts the counting of the timer after the lapse of the above 3 minutes, and then performs the control for invalidating the boost function for 10 minutes thereafter (see FIG. 5, P13, P23).
This is to prevent the boost switch 23 from being continuously pressed to enhance the safety of the device.

(2) Operation in S + P Mode Next, when it is desired to obtain a low frequency stimulus in the S + P mode, the mode changeover switch 21 may be operated to enter the S + P mode. Then, an S + P mode switching command signal is sent from the switch 21 to the CPU 9, and the CPU 9 takes in the music data from the semiconductor memory 2 based on the command signal and converts it into a music pulse, and then the music pulse is D / A.
10H for S + P mode while sending to conversion circuit 8
The low frequency pulse signal of z (the signal of FIG. 8) is set to the volume 13
(See FIG. 5, P1, P3 to P5, P24).
The D / A conversion circuit 8 converts the music pulse into an audio signal, and the audio signal passes through the low-pass filter 10 to become a low-frequency audio signal in the middle and low frequencies of 16 kHz or less (the signal in FIG. 6). The voltage is set to a predetermined voltage level set by the volume 11 and then amplified by the amplifier 12.
The low frequency pulse signal is set to a predetermined voltage level by the volume 13, and then amplified by the amplifier 14 to be combined with the low frequency audio signal at point a to generate a low frequency superimposed signal. The low-frequency superimposed signal is amplified by the amplifier 18, passes through the output switching circuit 19, and then is earphones 25, 26.
Is supplied to the conductive metal plating layers 25a and 26a of the casing. This low-frequency superposed signal is applied to the auricle from the conductive metal plating layers 25a and 26a of the respective casings, and the human body is stimulated according to its voltage level and current level. At this time,
The listener uses the speaker units 25a, 26 of the earphones 25, 26.
While listening to the music from b, the low frequency audio signal is appropriately stimulated by the signal S3 having a large voltage level of the low frequency audio signal in the middle and low frequencies, and the low frequency audio signal is received by the speaker 25a, Since it is synchronized with the audio signals in the mid-range and low-range of 16 kHz or less from 26a, it is possible to receive a rhythmical and comfortable stimulus that is synchronized not only with the low-pitched sound but also with the mid-range sound and the like, and a relaxing effect can be obtained. Further, since the low-frequency pulse signal (FIG. 8) is superimposed on the low-frequency superimposed signal, regular stimulation by the low-frequency pulse is simultaneously given, and in addition to the relaxing effect, the pain caused by the low-frequency pulse signal is added. A synergistic effect such as relaxation can be obtained.

When the level adjustment switch 22 is operated in the S + P mode, the CPU 9 controls the volume 11 to increase or decrease only the voltage level of the low frequency audio signal (FIGS. 5, P24, P7 and P8). Therefore, in this case, only the voltage level of the low-frequency music signal of the low-frequency superimposed signal can be increased or decreased, and the voltage level of the music reproduced from the speaker units 25a and 26a of the earphones 25 and 26 can be lowered independently. It is possible to adjust only the voltage level of the frequency audio signal according to preference, and it is possible to obtain a wide variety of low frequency stimuli including the audio signal from the mid range. Further, in this case, the listener can further enhance the relaxing effect by increasing only the stimulus synchronized with the music signal while receiving the regular low frequency stimulus of a constant level by the low frequency pulse signal.

If it is difficult for current to flow due to skin resistance, the boost switch 23 may be turned on. Then,
The CPU 9 increases the amplification degree of the amplifier 18 via the volume 24, doubles the voltage level of the low frequency superposed signal, and starts the timer. Then, the boosted state is continued for 3 minutes based on the timing of the timer, and the volume 24 is returned to the original set level when 3 minutes have elapsed (FIG. 5, P9 to P11). Therefore, the operator
Even in the + P mode, pressing the boost switch 23 breaks the skin resistance and facilitates the flow of current, so that stimulation with an appropriate current can be received. Also, the subsequent 1
The invalidation of the boost function for 0 minutes and the return of the boost function after the power is turned off are the same as in the S mode (see P in FIG. 5).
13, P23 and P14, P15).

(3) Operation in P mode Next, when it is desired to obtain a low frequency stimulus in the P mode, the mode changeover switch 21 may be operated to enter the P mode. Then, the P mode switching command signal is sent from the switch 21 to the CPU.
9 is sent to the CPU 9, and the CPU 9 outputs P based on the command signal.
A low frequency pulse signal for mode is sent to the volume 15 (see P1 to P4 and P16 in FIG. 5). At this time, the music pulse signal and the low frequency pulse signal for the S + P mode are not transmitted. The low frequency pulse signal for P mode is
After being set to a predetermined voltage level set by the volume 15, it is amplified by the amplifier 16 to be a high-level low-frequency pulse signal (Fig. 7 (a)) of up to 40V in the booster circuit 17, and the output switching circuit 19 is passed through the earphone. It is supplied to the conductive metal plating layers 25b and 26b of the casings 25 and 26 via points b and c. The high-level low-frequency pulse signals supplied to the conductive metal plating layers 25b and 26b are applied to the plating layer 25.
The auricle is energized through b and 26b, and the auricle is stimulated according to the voltage level and the current level. At this time,
Such a high-level low-frequency pulse signal, as shown in the waveform diagram of FIG. 7 (a), can give a stronger stimulation to the auricle by a regular low-frequency pulse, thereby providing an effect such as pain relief. Obtainable. Further, while the music is being reproduced by the audio signal reproducing unit 1, it is possible to receive a stimulus by the high-level low-frequency pulse signal while listening to the music. It is also possible to stop the reproduction of the music of the reproduction unit 1 and receive only the stimulation of the high-level low-frequency pulse signal of the P mode. When there is no music, it is difficult to obtain a sensory stimulus with a low-frequency pulse signal of about 4V in the S + P mode.
It is possible that the low-frequency stimulus may reduce the effect due to lack of sound due to silence, but the maximum potential of the high-level low-frequency pulse signal is as large as 40V, so sufficient sensation of sensation can be achieved without music. And is effective as a low-frequency stimulus signal in the absence of music.

In the P mode, when the level adjusting switch 22 is operated, the CPU 9 controls the volume 15 to increase or decrease the voltage level of the low frequency pulse signal (see P17 and P18 in FIG. 5). Therefore, even when music is being reproduced by the speaker units 25a and 26a,
The level of stimulation by the low-frequency pulse signal can be adjusted independently of the sound volume of the music according to one's preference, and a low-frequency stimulation rich in variation can be obtained.

If it is difficult for the current to flow due to skin resistance, the boost switch 23 may be turned on. Then,
The CPU 9 sets the maximum potential of the low-frequency pulse signal to 60 V by the volume 15 (waveform (b) in FIG. 7), starts the timer, and continues this state for 1 minute based on the timer. When the minutes have passed, the volume 15 is returned to the original setting level (FIGS. 5, P19 to P22). Therefore, even in the P mode, the operator can press the boost switch 23 to break the skin resistance and be stimulated by an appropriate current. Further, similarly to each of the above-mentioned modes, the timer is further started after the lapse of the above-mentioned 1 minute, and the boost function is disabled for 10 minutes thereafter (see P13, P23 in FIG. 5). The reason why the boost time is shortened to 1 minute in the P mode is that the skin resistance can be sufficiently broken even in a short time because the potential of the low-frequency pulse signal is large. The function of recovering the boost function when the power is off is the same as in each of the above modes (see P14 and P15 in FIG. 5).

As described above, the present invention has the earphones 25, 2
While listening to music at 6, it is possible to selectively receive a low-frequency stimulus by a low-frequency audio signal, a low-frequency pulse signal, or a low-frequency superimposed signal through the conductive metal plating layers 25b and 26b of the earphones 25 and 26. While listening to, the stimulus synchronized with the music signal and the stimulus by the regular low-frequency pulse can be arbitrarily selected, and the reduction of the stimulus effect due to the habituation of the human body can be prevented. Further, since the low-frequency stimulus by the low-frequency audio signal or the low-frequency superposed signal is synchronized with the mid-range to low-range sound of the music currently being listened to, it is possible to receive a rhythmical and comfortable stimulus rich in variation. In addition, the speaker units 25a, 26 of the earphones
Since the level of only the low frequency signal can be adjusted independently of the volume of the music reproduced from a, it is possible to obtain a low frequency stimulus that is rich in changes according to the taste and physical condition of the listener. In addition, the conductive metal plating layers 25b and 26b
Since the earphones 25, 26 having the acupuncture points are used, the earphones 25, 26 identical to the earphones for listening to music can be attached to the ears in the same manner as in the case of listening to normal music, and the auricles where the acupuncture points are concentrated. The low-frequency stimulus can be effectively applied to, and the electrode for the low-frequency stimulus does not need to be separately provided, and the effect of the low-frequency stimulus can be obtained with the same simple sensation as when listening to music. Therefore, it is possible to easily receive low-frequency stimulation not only when used indoors but also when going out or walking.

Further, since the MP3 reproducing device is used as the music signal generating source 1, the whole device can be made extremely small, and since there is no driving part or the like, a low frequency stimulating device which does not have an adverse effect due to sound skipping is realized. be able to. Therefore, the entire device according to the present invention can be housed in an ultra-small housing that fits in the palm of the hand (see FIG. 4).

Further, in the P mode, the listener is stimulated by the high-level low-frequency pulse signal when the music or the like from the speaker portions 25a, 26a of the earphones 25, 26 is reproduced or stopped. It is possible,
Even when there is no such music (silent state), it is possible to be stimulated by the low-frequency pulse signal. in this case,
Since the voltage level of the high-level low-frequency pulse signal is higher than that of the low-frequency audio signal, even when there is no music,
Sufficient sensory stimuli can be obtained.

Further, the signal levels of the low frequency audio signal and the high level low frequency pulse signal can be adjusted independently, and only the signal level of the low frequency audio signal can be adjusted when the low frequency superimposed signal is generated. Therefore, if you are stimulated by a low-frequency superimposed signal, you should receive only the level of the low-frequency audio signal synchronized with the low-frequency sound of the music signal while receiving regular stimulation by the low-frequency pulse signal. It can be adjusted according to the above conditions, and the relaxation effect can be further enhanced while the effects such as pain relief are obtained.

If the current is difficult to flow due to the skin resistance, the boost function can increase the signal level for a certain period of time to break the skin resistance and allow the current to flow. It is possible to realize low frequency stimulation by. In addition, once the skin resistance is broken, the current can be easily passed by the normal potential after that, so by automatically canceling the boost function, the operator does not need to cancel the boost function, With a very simple operation, it is possible to continue to receive appropriate low frequency stimulation thereafter. Further, since the boost function is disabled for a predetermined period after the boost function is released, it is possible to realize a highly safe low frequency stimulator.

[0045]

Since the present invention is configured as described above, while listening to music through the earphone, the low-frequency stimulus by the low-frequency audio signal or the low-frequency superposition signal is selectively applied through the conductive portion of the same earphone as the earphone. Can receive
While listening to music, it is possible to select a stimulus synchronized with music or the like or a stimulus with a regular low-frequency pulse, and it is possible to prevent a reduction in the stimulus effect due to the habituation of the human body. Further, since the low frequency stimulus by the low frequency audio signal or the low frequency superposed signal is synchronized with the low frequency sound of the music currently being listened to, it is possible to receive a rhythmical and comfortable stimulus rich in variation. In addition, since the earphone that has a conductive part that contacts the auricle is used, it is possible to receive low frequency stimulation with the same earphone that listens to music, and it is not necessary to separately provide an electrode for low frequency stimulation. , It is possible to receive low frequency stimulation with a simple sense of listening to music. Well
Also, put it on your ear exactly as you would when listening to normal music.
Alone, effectively applies low frequency stimulation to the pinna where the acupuncture points are concentrated.
Can be obtained. Therefore, it is possible to easily receive low-frequency stimulation not only when used indoors but also when going out or walking.

Further, since the MP3 reproducing device is used as the music signal generating source, the device can be made extremely small, and since there is no driving part or the like, it is possible to realize a low frequency stimulating device having no adverse effect due to skipping. it can.

Also, the listener can be stimulated by the high-level low-frequency pulse signal while reproducing the music or the like from the speaker section of the earphone, and the low-frequency audio signal or the like can be obtained. In comparison, since the voltage level of the high-level low-frequency pulse signal is high, sufficient sensory stimulus can be obtained even without music.

Further, the signal levels of the low-frequency audio signal and the low-frequency pulse signal can be adjusted independently, and the signal level of the low-frequency audio signal can be adjusted when the low-frequency superimposed signal is generated. While being regularly stimulated by the frequency pulse signal, only the low frequency stimulus synchronized with the low frequency sound of the music signal can be adjusted according to one's preference, and the relaxing effect can be further enhanced.

When the current is difficult to flow due to the skin resistance, the boost function increases the signal level for a certain period of time to break the skin resistance and allow an appropriate current to flow. Low-frequency stimulation can be realized with a large current. In addition, once the skin resistance is broken, the current can be easily passed by the normal potential, so the boost function is automatically canceled, so that the operator does not have to perform the boost function cancellation operation. You can continue to receive appropriate low-frequency stimulation. Also, after releasing the boost function,
Highly safe because the boost function is disabled for a certain period of time
A low frequency stimulator can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram of a low frequency stimulator according to the present invention.

FIG. 2 is a diagram showing a configuration of an earphone of the same device.

FIG. 3 is a diagram showing an embodiment of the earphone of the same as above, (a)
Is a plan view, (b) is a rear view, (c) is a left side view, (d)
Is a front view, (e) is a right side view, and (f) is a bottom view.

FIG. 4 is a perspective view of an outer shape of an embodiment of the low frequency stimulating device of the above.

FIG. 5 is a flow chart showing the control of the control means of the low frequency stimulator.

FIG. 6 is a waveform of a low-frequency audio signal generated by the same low-frequency stimulator.

FIG. 7A is a waveform of a high-level low-frequency pulse signal generated by the low-frequency stimulator of the same as above, and FIG. 7B is a waveform of the same waveform at the time of boosting.

FIG. 8 is a waveform of a low-frequency pulse signal of the same low-frequency stimulator.

[Explanation of symbols]

1 Audio signal generator 7 Low frequency signal generator 9 CPU 11 and 15 volumes 22 Level adjustment switch 23 Boost switch 24 volumes 25,26 earphones 25a, 26a Speaker section 25b, 26b Conductive metal plating layer

Claims (5)

(57) [Claims] 1. An audio signal reproducing means for reproducing a signal from an audio signal generating source to generate an audio signal, and extracting a low frequency component from the audio signal obtained based on the signal from the audio signal generating source. A low-frequency audio signal generator that generates a low-frequency audio signal, and a low-frequency superimposed signal generator that generates a low-frequency pulse signal and can superimpose the low-frequency pulse signal on the low-frequency audio signal to generate a low-frequency superimposed signal. A low frequency signal generating means, and a flat part that comes into contact with the protrusion for mounting in the ear canal and the periphery of the ear canal.
It is composed of a housing consisting of a conductive part with a carrier,
An earphone having a speaker unit capable of receiving and reproducing an audio signal from the audio signal generating means, and receiving the low-frequency signals from the low-frequency signal generating means to energize the conductive portion; The audio signal from the signal source is sent to the earphones above.
It sends out the serial speaker unit, and the low frequency audio signal or the low frequency either selectively the earphone conductive control means capable of sending the portion of the superimposed signal from the low frequency signal generating means, the low Level adjustment that can adjust the signal level of high-frequency audio signals
Node means is provided, and the control means controls the low-frequency superimposed signal to be conductive to the earphone.
In the case of sending to a part, the level adjusting means
Increase or decrease the level of the low frequency audio signal based on the operation of
A low-frequency stimulator characterized by being a thing . 2. The low frequency stimulating device according to claim 1, wherein the audio signal generating source is an MP3 reproducing device. 3. The low-frequency signal generating means is provided with a high-level low-frequency pulse signal generating section for generating a high-level low-frequency pulse signal having a voltage level higher than that of the low-frequency pulse signal, and the control means generates the voice signal. 3. The low frequency stimulator according to claim 1, wherein the high level low frequency pulse signal is sent to the conductive portion of the earphone when the audio signal is reproduced or stopped from the source. 4. A level adjusting means for independently adjusting the signal level of the low-frequency audio signal and the signal level of the high-level low-frequency pulse signal is provided, and the control means supplies the low-frequency superimposed signal to the conductivity of the earphone. 4. The low frequency stimulator according to claim 3, wherein the level of the low frequency audio signal is increased or decreased based on the operation of the level adjusting means when the low frequency stimulus is being sent to the portion. 5. When the low-frequency audio signal, the low-frequency superimposed signal, or the high-level low-frequency pulse signal is being sent to the conductive portion of the earphone, the signal level during sending is predetermined for a certain period of time. A boost function to increase to a level is provided, and the control means turns on the boost function.
Based on the above, after increasing the signal level for a certain period of time, the boost function is canceled to restore the signal level to the level before boosting, and after the boost function is canceled,
The low frequency stimulating device according to claim 3 or 4, wherein the period boost function is invalidated .