JPH03109091A - Sound input priority circuit - Google Patents

Abstract

PURPOSE:To enjoy an unexpectedly-funny motion, by a method wherein input timing of a sound signal inputted by sensor is detected, and a motor is turned clockwise or counterclockwise by its timing, and an ornamental device is operated thereby. CONSTITUTION:A device with the title circuit is composed as follows. A rotary body 2 is rotatably placed on a base stand 1 for an ornamental device with a built-in sound-detecting circuit and on the basis of the amount of sound caught by microphones 4a, 4b, a motor provided within the rotary body 2 is turned in the direction of an arrow mark. When a sound signal is inputted to one microphone earlier than the other, the motor is turned in the direction of one microphone and after that, its rotation is not impeded even though a sound is inputted to the other microphone.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a circuit configuration, and more specifically, to a configuration of an audio input priority circuit used in a decorative device that operates by detecting sound, light, etc. using a sensor. Regarding.

(Prior Art) In recent years, products have been sold that operate by detecting human voices or sounds such as applause using sound sensors.

This means that it is possible to create a situation where it seems as if there is communication between the product and the person.
Although this is a new product, the mainstream of conventional products is one that performs one operation for one sensor, and a product that performs multiple operations by interlocking multiple sensors has not been developed. It wasn't.

(Technical Problem of the Invention) The present invention makes further use of the characteristics of products that operate in conjunction with sensor outputs as described above, and can provide an unprecedented and effective surprise to people by moving decorations using multiple sensor outputs. The technical problem is to provide a voice input priority circuit for configuring a decorative device that can be used.

(Means for Solving the Problems) In order to solve the above problems, an audio input priority circuit according to the present invention includes an audio signal input means for inputting audio and converting it into a predetermined signal, and amplifying the output of the audio signal input means. and current-voltage conversion means for converting the audio signal into a voltage signal;
Two sets of logic circuits each input the output signal of the current-voltage conversion means and output a signal for driving a transistor serving as a motor driver, and when an audio signal is input to any of the audio signal input means, the output signal of the motor, etc. It is characterized in that the driven object is actuated.

(Operations and Effects of the Invention) With the above configuration, the input timing of the audio signal input to the sensor is detected, and the motor is rotated in the forward and reverse directions according to the detected timing to operate the decoration device. As a result, for example, when a person calls, the decoration device rotates in the direction in which the input signal is input earlier in the voice input to the sensor, making the decoration placed on the decoration device appear as if the person was calling. It is possible to move to turn around.

Therefore, instead of a single movement like conventional products, you can enjoy interesting movements full of surprises.

(Example) Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

FIG. 1 is an external configuration diagram showing a state in which artificial flowers are placed on a decorative device incorporating a voice detection circuit according to the present invention, and in the figure, 1 is a base of the decorative device, and 2 is a rotating device mounted on the base. A freely placed rotating body, 3 a power switch for the decoration device, 4a
, 4b is a microphone buried in the upper part of the rotating body,
The microphones 4a and 4b are configured to rotate in the direction of the arrow by a motor built in the rotating body 2 based on the sound volume sensed by the microphones 4a and 4b.

FIG. 2 is a diagram showing a voice detection circuit of the decoration device shown in FIG. 1.

In the figure, reference numerals 10 and 11 are microphones, one end of which is grounded, and the other connection end connected to the operational amplifier OPI and the output terminal via capacitors C1 and C2.
Connected to the negative terminal of F2. On the other hand, the positive terminals of the operational amplifiers OP1 and OF2 are connected to each other by a connecting line 13, and the connecting line is connected to the midpoint of a connecting line made up of resistors R1 and R2.

The output terminals of the operational amplifiers OPI and OF2 are connected to resistors R3 and R4.
Feedback lines 15 and 17 are connected to the negative side terminal, respectively, and resistors R5 and R6 are connected to the output terminal of the operational amplifier, and diodes D1 and D2 are connected in parallel to the resistors R5 and R6. It is connected to the input terminal B of the next stage CMOS logic circuit CMI, 0M2.

Each input terminal A of the CM1.0M2 is grounded, and the output terminal direction of the CMI is the reset signal input terminal of 0M2.
The output end of 0M2 is connected to the reset end of CMl.

Furthermore, the output terminal Q of the CMI is connected to the NP via a resistor R7.
N-type transistor TRI and PNPN upper-type transistor TR2
Similarly, the output terminal Q of said CM2 is connected to the base terminals of transistors TR3 and TR4 via a resistor R8.

Further, the emitter terminal of the transistor TRI and the emitter terminal of TR2 are connected, and the emitter terminal of the transistor TR3 and the emitter terminal of TR4 are also connected, and a motor M is connected between both emitter terminals.

In the audio input circuit configured in this manner, for example, when an audio signal is input to the microphone 10, the detected audio signal is converted into a current signal by the operational amplifier OPI provided at the next stage, and is then sent to the input terminal of the logic circuit CMI. As a result, the output signal at the output terminal Q becomes LOW level, and the output signal at the - output terminal becomes HI level.

Therefore, on the logic circuit CM2 side, the reset signal is at HI level, so that no matter what signal is input to input terminal B, its output terminal Q is at HI level, and the output signal at the negative output terminal Q is at LOW level.

As a result, the transistors TR2 and TR3 are activated, and a current flows through the motor M via the transistor TR3 -> the motor M - the transistor TR2 -> the resistor R9, so that the motor M rotates.

On the other hand, when audio is input to the microphone 11, the output signal level of the output terminal Q of the logic circuit CM2 is LOW level.
The output signal level of the output terminals becomes HI, and the output signal level of the output terminal Q of the logic circuit CMI becomes LOW, so that the transistors TRI and TR4 operate, and the current flows from the transistor TR1 to the motor M. -> Transistor TR4 -> Resistor R1O, and the rotational operation is performed in the opposite direction to that when the voice is input to the microphone 10 described above.

That is, the motor M rotates in the direction in which an audio signal is first inputted to one of the microphones 10 or 11, and after starting rotation, even if audio is inputted to the other microphone, the rotation is not hindered.

Therefore, when the voice input circuit according to the present invention is used in a decoration device as shown in FIG. It behaves as if it were called by someone and turns in the direction of the person who called out to it, creating the effect that communication exists between the person and the decoration.

It is obvious that the signal detection circuit according to the present invention is not limited to the ornaments described in the embodiments.

[Brief explanation of drawings]

FIG. 1 is an external configuration diagram showing a state in which artificial flowers are placed on a decoration device incorporating the sound detection circuit of the present invention, and FIG. 2 is a diagram showing the sound detection circuit of the decoration device shown in FIG. 1.

Claims (1)

[Claims] audio signal input means for inputting audio and converting it into a predetermined signal; current-voltage conversion means for amplifying the output of the audio signal input means and converting the audio signal into a voltage signal; and output of the current-voltage conversion means. Two sets of logic circuits each input a signal and output a signal to drive a transistor serving as a motor driver, and when an audio signal is input to one of the audio signal input means, a driven object such as a motor is operated. An audio input priority circuit characterized by: