JPH0433475B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a moving toy that performs predetermined movements in response to sounds having specific frequency components.

In Japan, when teaching a baby how to urinate, it is widely known that the child should be taught to urinate by saying, ``Shhhh''. Related to this, there are dolls called "milk drinking dolls".
I put milk or water in a supplement bottle and gave it to her to drink. However, in this case, the doll started urinating immediately after drinking. In other words, it was not possible to control the timing of urination at a desired time.

Furthermore, it is generally known that when a person makes the sound "shi", the sound has frequency components that are common to everyone without using much of the vocal cords. In other words, it is known that when an unspecified number of people say "shh", the frequency components of the voices are almost the same.

In view of the above-mentioned facts, it is an object of the present invention to provide a moving toy that incorporates a novel technical concept that performs predetermined actions such as draining water in response to only sounds having specific frequency components.

The motion toy of the present invention has the shape of a doll as a whole, has a mechanical means for discharging the fluid held inside from the mouth through the water supply pipe to the lower abdomen through the drain pipe, and has a mechanical means for discharging the fluid held inside through the mouth part through the water supply pipe to the lower abdomen. A sensor circuit that receives audio including a specific frequency component in a range of 20 KHz and generates an electrical audio signal, and selects an audio signal consisting only of the specific frequency component from among the audio output signals from the sensor circuit. The device is characterized in that it includes a filter circuit that generates a detection signal using the filter circuit, and a drive circuit that controls the operation of the mechanical means by receiving the detection signal from the filter circuit.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

First, we will explain sounds with common frequency components that are generated by an unspecified number of people. As previously mentioned,
The production of "shh" is a sound that hardly uses the vocal cords, and it is known that anyone can produce the same sound at a frequency of about 6KHz to KHz (high frequency component). Therefore, if audio in this frequency band is used, there is an advantage that frequency fluctuations caused by individual differences in the occurrence of "shh" can be suppressed as much as possible. The present invention has been made based on the above facts.

Based on the above recognition, an embodiment in which the technical idea of the present invention is embodied in a so-called milk drinking doll will be described with reference to the drawings.

FIG. 1 is a diagram showing the external appearance and internal structure of a milk-drinking doll (hereinafter simply referred to as an "action doll"). A water supply pipe 14 is provided, one end of which is fixed to the mouth 12 of the main body 10 of the action doll, and the other end of which is fixed to a mechanical means 20 (described later) consisting of a water storage tank and a drainage pump. An electronic control means 30 for electronically controlling this mechanical means 20 is arranged in the abdomen 16, and this control means 30 and the mechanical means 20
A battery power source 40 for use is placed on the back 18. Also, a drain pipe 1 has one end fixed to the drain port of the drainage pump of the mechanical means 20 and the other end fixed to the lower abdomen 17.
5 will be provided. This drain pipe 15 is connected to the water supply pipe 14 via a drain pump so as to communicate therewith.

Next, the mechanical means 20 mentioned above will be explained in detail.

In the working doll of this example, the basic operation of the mechanical means 20 is to feed a fluid such as milk or water from the mouth 12 using a detection signal obtained by detecting the sound of "shh". This is a series of actions for draining the fluid in the water storage tank 21 from the doll's lower abdomen 17 via the drain pipe 15.

Therefore, various configurations are conceivable for the mechanical means 20 that performs the series of operations described above.
Only typical ones will be explained below with reference to the drawings.

First, FIG. 2a shows a structural diagram of one embodiment. The water storage tank 21 and the water distribution pump 22 are connected to the partition wall 23
Separate by The other end of the water supply pipe 14 is communicated with and fixed to the upper side wall of the water storage tank 21.
Further, an opening 24 is formed in a part of the partition wall 23 so that the fluid contained in the water storage tank 21 is supplied to the pump 22. This drain pump 22 has an impeller 25 connected to a motor 26 via a shaft 27, and as the impeller rotates, fluid is pumped through the drain pipe 15 from the lower abdomen 17 of the doll at a predetermined pressure. Designed to drain outside the body.
The structure described above can be better understood from the sectional view of FIG. 2b.The partition wall 23 serves as a check valve during drainage.

Since the drainage pump means having the above structure is well known, further detailed explanation will be omitted.

Next, a second embodiment is shown in FIG.
It is a well-known blow type pump. A blow 51 made of an elastic member is provided. This blow 51 P
The other end of the water supply pipe 14 is communicated with and fixed to the side wall of the section, and a check valve 52 is provided near the other end of the water supply pipe 14 to prevent backflow of fluid when the blow 51 is compressed. In addition, a drain pipe 15 is connected and fixed to the center of the bottom of the blow 51, and a check valve 53 is similarly provided inside the drain pipe 15, thereby storing fluid inside the blow 51 and blowing. 51 also functions as a water storage tank. A cam 54 is connected to the top of the blower 51, and the cam 54 is connected to the motor 26 via a gear 55.

In the above configuration, the blow 51 is filled with fluid such as water from the water supply pipe 14 via the check valve 52 in advance. In this case, the bottom drain pipe 15
Since a check valve 53 is disposed in the drain pipe 15, the inflowing fluid is not drained out of the doll's body through the drain pipe 15.

The motor 26 is energized by the detection signal from the electronic circuit means 30, thereby transmitting rotational force to the gear 5.
5 to the cam 54. Therefore, the cam 54 rotates, and this rotation causes the blow 51 to reciprocate up and down. Due to this reciprocating movement, the fluid filling the blow 51 is drained out of the body via the drain pipe 15.

Further, a mechanical means 2 having a structure in which a water storage tank 21 and a motor 26 are arranged side by side as shown in FIG.
0 can also be achieved.

Next, the electronic control means 30 will be explained in detail.

First, the basic configuration and operation of this electronic control means 30 will be explained with reference to FIG.

That is, a sensor circuit 32 that receives the sound of "shi" and converts it into an electrical signal, and this sensor circuit 3.
A filter circuit 34 selects only a detection signal having a predetermined frequency component and/or lasting a predetermined time out of the voice detection signals from 2; The drive circuit 36 energizes the 20 motor 26 for a predetermined period of time. However, the duration condition is not a condition.

There are various methods of concretely implementing the circuit 30 having the basic configuration as described above. Therefore,
Below, only typical circuits will be described in detail.

The first method is an analog method, and a typical circuit configuration thereof is shown in FIG. A microphone 80 is provided as the sensor circuit 32, which receives audio to obtain an audio signal with a waveform as shown. This audio signal is amplified/waveform shaper 82
The signal is then amplified to a predetermined level, and the waveform is further shaped to obtain an output signal as shown in the figure. This output signal is then provided to an integrator 84 to obtain an integrated output signal over time. This integral output signal is supplied to a threshold circuit 86, and if this integral output signal reaches a predetermined threshold level, the circuit 86 is designed to output a detection signal. In this case, the amplification/waveform shaper 82 uses approximately 6K of the input audio signal.
Only signal components with frequencies from Hz to 20KHz are selectively amplified/waveform shaped. Therefore, the circuit 82 is designed so that a desired audio output signal is output from the circuit 82 when the audio component of "shi" is present in the input audio.

In this manner, when the desired audio output signal exists for a predetermined duration (which corresponds to the integral area of the integral output signal), the threshold circuit 86 outputs a detection signal.
This detection signal is supplied to the drive circuit 36 to generate a drive signal necessary to energize the motor 26 for a predetermined period of time. That is, Microphone 8
0, a predetermined detection signal is output from the threshold circuit 86 by uttering "shh shhh". As a result, drive circuit 3
The motor 26 is energized by the drain pump 2
2 is activated, and the fluid stored in the water storage tank 21 is discharged from the doll's lower abdomen 17 through the drain pipe 15.

Next, FIG. 7 shows a typical circuit configuration using a digital method.

First, similar to the circuit shown in FIG. 6, the audio signal from the microphone 81 is amplified and waveform-shaped to obtain a predetermined audio output signal. This microphone 8
1, it is assumed that only a specific frequency component is already selected. The audio signal selected in this manner is supplied to the pulse generator 87 to generate a pulse signal. In this case, the pulse signal is designed to be continuously generated for a time proportional to the duration of the input audio output signal. That is,
A pulse signal with a number of pulses proportional to the duration of the input signal is generated.

On the other hand, a clock pulse generator 8 is provided as a reference pulse signal. This clock pulse and the above-mentioned pulse signal of the audio signal are supplied to a digital comparator 89, and the number of pulses of the audio pulse signal inputted with this clock pulse as a reference signal is counted. If the number of pulses is greater than a predetermined number, it means that the desired "see" signal has existed for a predetermined period of time, so a detection signal is generated by the comparator 89, which is sent to the drive circuit 36.
is supplied to energize the motor 26.

As detailed above, according to the present invention, about
Since a detection signal is generated only in response to sound of a specific frequency component of 6KHz to 20KHz, the noise resistance against sounds other than the predetermined sound is significantly improved.

Furthermore, since the filter circuit is sensitive only to sounds with almost no difference in frequency components (=sound spectrum) generated by individuals, there is also the effect of avoiding the problem of activation/inactivation due to individual differences.

In addition, toys such as dolls perform movements such as urination based on your own voice, so it is very realistic to play with toys, and there is also the benefit of creating toys that have extremely high educational effects on fostering love. .

Note that, if the nozzle resistance is sacrificed to some extent, it is also possible to generate a detection signal only by generating a signal of a specific frequency component and ignore the duration.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an example in which the toy of the present invention is applied to a milk-drinking doll; FIGS. 2 a and b are external views and cross-sectional views showing an example of the mechanical means of the toy shown in FIG. 1; 3 and 4 are external views and explanatory drawings showing other examples, FIG. 5 is a basic circuit diagram of the electronic means of the toy shown in FIG. 1, and FIGS. FIG. 2 is a circuit diagram of a typical embodiment embodying the circuit of FIG. Code 14... Water supply pipe, 15... Drain pipe, 20...
... Mechanical means, 21 ... Water tank, 22 ... Drain pump, 26 ... Motor, 30 ... Electronic means, 82 ... Amplification/waveform shaping circuit, 84 ... Integration circuit, 86 ... Threshold Circuit, 87...
...Pulse generator, 89...Digital comparator.

Claims (1)

[Scope of Claims] 1 The entire body has the shape of a doll, and has a mechanical means for discharging the fluid held inside from the mouth through a water supply pipe to the lower abdomen through a drain pipe, and has approximately
A sensor circuit that receives audio including a specific frequency component in the range of 6KHz to 20KHz and generates an electrical point audio signal, and an audio signal that includes only the specific frequency component of the audio output signal from the sensor circuit. a filter circuit that selects and generates a detection signal;
and a drive circuit that controls the operation of the mechanical means by receiving a detection signal from the filter circuit. 2. The moving toy according to claim 1, further comprising a circuit for selecting the duration of the audio signal of the specific frequency component to the filter circuit. 3. A microphone is provided as the sensor circuit, and as the filter circuit, an amplification/waveform shaping circuit connected to the microphone, an integrating circuit connected to the shaping circuit, and a threshold for the integral signal from the integrating circuit are provided. 3. The moving toy according to claim 1, further comprising a threshold circuit for detecting a level. 4 A microphone is provided as the sensor circuit, and an amplification/waveform shaping circuit is connected to the microphone as the filter circuit, and a pulse signal proportional to the duration of this signal is generated by an audio output signal from the shaping circuit. A pulse generator that generates a reference pulse signal, a reference pulse generator that generates a reference pulse signal, and a digital comparator that compares the pulse signal and the device reference pulse signal to generate a detection signal. A moving toy according to claim 1 or 2.