JPH0233273B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sound-producing toy, and more particularly to a sound-producing toy that generates a sound when children's hands are held together to form an electrical closed circuit.

An object of the present invention is to provide a sound toy that allows children to play games such as compatibility fortune-telling.

The sound producing toy of the present invention includes a pair of electrodes, a random signal generating means connected to the pair of electrodes and discriminating the resistance value between the electrodes into high and low based on a predetermined threshold value, and the random signal pulse signal generating means for generating signals of different frequencies corresponding to high and low levels of the random signal from the generating means, frequency dividing means for dividing the output frequency signal from the pulse signal generating means, and the pulse signal a time constant generating means for inputting the output signal from the generating means and the frequency divided signal from the frequency dividing means and generating these signals as frequency signals delayed by a plurality of time constants; and tone generating means coupled to the means for generating a synthesized tone corresponding to the frequency signal.

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

FIG. 1 is an external view of the sound toy of the present invention.
The main body 1 has a substantially annular shape, and has a pair of detection parts, that is, grip parts 2a and 2b, formed on opposing lines, and a sound generating part 3 on a line orthogonal to these opposing lines. . For example, one child's hand holds one grip 2a, and the other grip 2a
If you hold b in another child's hand and connect the remaining hands of these two children, as described below,
Grip part 2a → one child's hand → the other child's hand →
An electrical closed circuit is formed in the path of the grip part 2b, and as a result, two sounds are randomly emitted from the sound generating part 3.
At the same time, the light emitting parts 4 and 5 light up, allowing compatibility fortune-telling.

Next, FIG. 2 shows a block diagram of an electronic circuit for implementing the sound producing toy of the present invention.

First, the grip parts 2a and 2b are made of metal material,
As mentioned above, hold it in your child's hand. As a result, a closed circuit is formed between the grips 2a and 2b through the child's hands, and these grips 2a and 2b are electrically connected. This metal grip part 2
a, 2b are connected to the random signal generator 10.
A random signal is generated from the random signal generator 10 by connecting the grip portions 2a and 2b with a child's hand. That is, a predetermined threshold value, for example, the average value obtained when the grip parts 2a and 2b, which are a pair of electrodes, are connected through two children holding hands, in this example, 2.5V. By setting , a "Hi" (or "1") signal is output when the voltage exceeds 2.5V, and a "Lo" (or "0") signal is output when the voltage falls below 2.5V. In addition, since this predetermined threshold value is set to an average value, depending on the way the two children's hands are joined, a voltage value that slightly increases or decreases above the threshold value can be obtained from the grip portions 2a and 2b. , 2b, the random signal generator 10 outputs high and low signals by discriminating the resistance value that changes between the grip parts 2a and 2b according to a predetermined threshold value in response to the state in which the child's hands are tied together. do.
Since the pulse intervals of these high and low signals are not constant depending on the condition of the signal and vary irregularly, they are output as random signals. One of the random signal generators 10 is connected to a flip-flop circuit 12 to supply the random signal to an A pulse generator 14 and a B pulse generator 16 alternately. Incidentally, the flip-flop circuit 12, the A pulse generator 14, and the B pulse generator 16 constitute pulse signal generating means. Further, the A pulse generator 14 and the B pulse generator 16 generate an A pulse signal and a B pulse signal, respectively, based on random signals supplied alternately. For example, the A pulse signal has a frequency of The B pulse signal is a low frequency (hereinafter simply referred to as low frequency) pulse signal, and the B pulse signal is a high frequency (hereinafter simply referred to as high frequency) pulse signal. The output terminals of the A pulse generator 14 and the B pulse generator 16 are connected to the light emitting units 4 and 5.
Connect to each. A pulse and B pulse signals are generated by a signal obtained by waveform shaping a random signal. For example, when a low frequency A pulse signal is supplied, the light emitting section 4 lights up.

Further, the output terminals of these pulse generators 14 and 16 are connected to the f input terminal of the time constant generator 18 and also to the f input terminal of the first frequency divider 20. With this first frequency divider 20, the pulse generator 1
The 1/2f frequency divided output signal obtained by dividing the pulse signal from 4 and 16 by 1/2 is applied to the 1/2f input terminal of the second frequency divider 22 and the 1/2f input terminal of the time constant generator 18. supply This second frequency divider 22 further divides the frequency of the 1/2f frequency divided output signal inputted from the first frequency divider 20 by 1/2 to obtain a 1/4f frequency divided output signal. This 1/4
The f-divided output signal is supplied to the 1/4f input terminal of the time constant generator 18.

Therefore, the above three types of input signals f, 1/2f, and 1/4f frequency-divided signals are inputted to the time constant generator 18 with respective time delays. In other words, the 1/2f frequency divided signal is transmitted to the first frequency divider 2.
0, and the 1/4f frequency-divided signal is delayed in time from the pulse signal directly input to the f input terminal by the amount that it passes through the first frequency divider 20 and the second frequency divider 22, Therefore, for the pulse signal directly input to the f input terminal, these 1/2f and 1/4f
A time constant circuit is formed by the frequency-divided input signal, which is output to the tone generator 24 at the subsequent stage, and various tones, for example, sounds corresponding to pulse signals are first output, and a very small predetermined sound is output. When time elapses, a sound corresponding to the 1/2f frequency division signal is superimposed, and when a predetermined time elapses, a sound corresponding to the 1/4f frequency division signal is superimposed, creating a so-called echo-like sound. It is becoming more and more common. The operating time of the tone generator 24 is determined by a monostable multivibrator 26 using a random signal from the random signal generator 10. That is, depending on the time constant of the monostable multivibrator 26, the trigger pulse is transmitted to the tone generator 24 for about 4 seconds, for example.
It is now being supplied to Therefore, the tone generator 24 is configured to oscillate for the above-mentioned period at the oscillation frequency determined by the time constant circuit selected by the time constant generator 18.

A power supply circuit 28 is provided to supply power to each part, and this is controlled ON/OFF by a power switch SW. As this power supply, for example, three AA batteries are connected in series to obtain 4.5V.

The above is an explanatory diagram of the system configuration and operation of the sound producing toy of the present invention. If this is constructed using an actual electronic circuit, it will become as shown in FIG. 3.

In the circuit diagram of FIG. 3, parts corresponding to each circuit part of FIG. 2 are surrounded by broken lines and numbered accordingly.

The operation of each part of the circuit shown in FIG. 3 will be explained below.

Now, when the children hold hands, the metal grips 2a and 2b are electrically connected and a closed circuit is formed. This triggers the random signal generator 10 to generate a random signal.

In this case, as mentioned above, the resistance value between the grip part 2a and the grip part 2b, that is, the total resistance value of the two children holding hands, depends on the condition of the hands and the way the hands are joined. etc. are different, so
A value that increases and decreases with respect to a predetermined voltage value can be obtained. Therefore, by setting this predetermined voltage value as a threshold value, a pulse signal that becomes "Hi" when this threshold value is exceeded can be obtained, and since this pulse signal is irregular, a so-called random signal with different frequency components can be obtained. A signal will begin to be generated.

That is, the circuit is configured so that the sounds generated from the tone generator differ based on the random signal generated by the difference in resistance value.

Also, of the two NAND gates 31 and 33 configuring this random signal generator 10, the first
The random signal from the NAND gate 31 is supplied to the monostable multivibrator 26, and the second
A random signal from NAND gate 33 is supplied to flip-flop circuit 12.

This flip-flop circuit 12 has a so-called T
- It consists of a flip-flop circuit, and the second
Each time a random signal as a clock pulse from the NAND gate 33 is input, that is, each time the random signal falls from "Hi" to "Lo", the two
The output from the NAND gate is inverted.
That is, when a "Hi" signal is output to the A pulse signal generator 14, a "Lo" signal is output to the B pulse signal generator 16, and a "Lo" signal is output to the A pulse signal generator 14. When the pulse signal is set, a "Hi" signal is output to the B pulse signal generator 16.

These A pulse (low frequency) and B pulse (high frequency) are supplied to the respective bases of transistors 35 and 37 of light emitting sections 4 and 5 via terminals a and b. As a result, the transistors 35 and 37 are turned on, and the light emitting diodes (LEDs) 38 and 39 connected to their collectors are forward biased and emit light.

On the other hand, the A pulse generator 14 and the B pulse generator 1
The output signal from 6 is applied to the f input terminal of the first frequency divider 20 and the time constant generator 18, respectively. This first frequency divider 20 and the second frequency divider 22 following this
Since it consists of one stage of ordinary flip-flops, each input frequency is divided by 1/2. Therefore, the frequency of the output signal of the second frequency divider 22 is 1/4 of the frequency of the output signals of the A and B pulse generators 14 and 16.

These three types of frequency components f, 1/2f and 1/4
The signal f is applied to each transistor 4 of the time constant generator 18.
1, 43 and 45 bases, respectively.
However, these signals are not supplied at the same time, but are supplied over time with an extremely small predetermined time delay, so these transistors 4
1, 43, and 45 are also turned on with a time lag.
I come to do it. Therefore, the input time constant of the input-side NAND gate 47 of the tone generator 24 subsequent to these transistors 41, 43, and 45 changes over time.

Since the random signal from the random signal generator 10 is input to the tone generator 24 via the monostable multivibrator 26,
The tone generator 24 comes to operate for a time determined by the time constant of the monostable multivibrator 26. That is, the output signal from the time constant generator 18 is supplied to one input terminal of the input side NAND gate 47 of the tone generator 24, and the output signal from the monostable multivibrator 26 is supplied to the other input terminal. The output signal from the time constant generator 18 is output from the output terminal of the NAND gate 47 only when the output signal from the monostable multivibrator 26 is "Hi". Therefore, the monostable multivibrator 26 operates only for a period of time determined by its time constant. This NAND gate output is supplied to the output side NAND 49, and a part of its output signal is fed back to the input side via the capacitor 48. This tone signal is supplied to the base of the transistor 51 of the sound generating section 3,
The sound is amplified until it reaches a predetermined volume and is generated as sound by the speaker 53 on the collector side.

As mentioned above, the time constant of the time constant generator 18 changes over time, so the speaker 5
The tone color of the sound generated from 3 changes accordingly.

The present invention is not limited to the above-mentioned embodiments,
Various changes can be made.

For example, although the time constant of a monostable multivibrator is fixed, it can also be made variable to change the sounding time. Moreover, by further providing a frequency divider, it is possible to generate various kinds of sounds.

Furthermore, other sounding members such as an electronic buzzer may be provided in place of the speaker.

Furthermore, in this example, sounds are simply generated, but instead of this, an LSI-based speech synthesis circuit can be used to perform compatibility fortune-telling based on tones.

As described in detail above, according to the present invention, by grasping each detection part of a pair of detection parts (grip parts) with each free hand of a child who is holding hands, one side can be detected. An electrical closed circuit is formed between the first child - the second child - the other side's sensing part, and the resistance value between the pair of sensing parts changes slightly depending on the grip of the hand at this time. The electronic sounds generated by using this change in resistance value are completely random and you can enjoy the coincidence, but on the other hand, if you are sweating a lot or your hands are clenched tightly, the electronic sounds will be relatively stable. Because it is pronounced, it can be used for compatibility fortune-telling, and it can also be used as entertainment at parties.

[Brief explanation of drawings]

Fig. 1 is an external view of the sound toy of the present invention, Fig. 2 is a system block diagram of the electronic circuit provided inside Fig. 1, and Fig. 3 is a specific electronic circuit diagram of the system shown in Fig. 2. It is. Code 1...Main body, 2a, 2b...Grip part (detection part), 3...Sound generating part, 4, 5...Light emitting part, 10
... Random signal generator, 14 ... A signal generator, 16 ... B ... Signal generator, 18 ... Time constant generator, 20, 22 ... Frequency divider, 24 ... Tone generator, 26 ... ...monostable multivibrator, 31, 33, 47, 49...NAND gate.

Claims (1)

[Claims] 1: a pair of electrodes, a random signal generating means connected to the pair of electrodes, which discriminates the resistance value between the electrodes into high and low based on a predetermined threshold; a pulse signal generating means for generating signals of different frequencies corresponding to high and low levels of the random signal from the means; a frequency dividing means for dividing an output frequency signal from the pulse signal generating means; and said pulse signal generating means. a time constant generating means for inputting an output signal from the means and a frequency divided signal from the frequency dividing means and generating these signals as frequency signals delayed by a plurality of time constants; and this time constant generating means. A sound producing toy comprising: tone generating means coupled to a frequency signal to generate a synthesized sound corresponding to the frequency signal;