JPH0548152Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a decorative clock that is displayed in stores, etc., and on the hour, dolls, etc. protrude along with the stage and operate in time with the music being played. This invention relates to a device that increases the volume of a part of a performance piece corresponding to the external sound by synchronizing it with the external sound when an external sound is detected.

(Prior Art) In conventional decorative clocks of this type, the dolls operate in accordance with a predetermined musical piece at the hour of the hour, and when the musical piece ends, the dolls also stop, making the same movements every hour on the hour. It was something that was repeated over and over again.

(Problem to be solved by the invention) In the above-mentioned conventional decorative clock, the audience only sees and hears the doll's movements and the music being played, and it is also easy to change the doll's movements and the music being played. Since I couldn't do it myself, it became monotonous, and I sometimes found myself getting discouraged after seeing the action a few times.

The purpose of this invention is to change the volume of the part of the performance song corresponding to the external sound when a specific external sound is input, synchronizing it with the external sound, thereby creating a change in the performance song, and further encouraging audience participation. To provide a decorative clock that can be enjoyed for a long time by improving the taste of the clock.

(Means for Solving the Problems) The decorative clock of the present invention includes a clock circuit that measures the time, an hour detection circuit that outputs an hour signal when it detects the hour, and a drive signal in response to the hour signal. A decorative clock comprising: a decorative body drive circuit that outputs a decorative body; a decorative body such as a doll that operates when a drive signal is input; and a performance signal output circuit that outputs a performance signal when an hourly signal is input; a first detection circuit that detects a specific frequency of a performance signal and outputs a first detection signal; an external sound detection circuit that detects an external sound and outputs an external sound signal; a second detection circuit that detects the occurrence of a sound and outputs a second detection signal; and a second detection circuit that changes the volume of the performance signal from a reference value to a set value in response to simultaneous occurrence of the first and second detection signals. a reference volume setting circuit to output; a control circuit to output a predetermined volume signal in response to the first detection signal; and a control circuit to vary the volume based on the volume of the performance signal from the reference volume setting circuit in response to the volume signal. It consists of a volume variable circuit that outputs the sound signal as a sound signal, and a sound generation circuit that inputs the sound signal and outputs an audible sound.

(Function) In the decorative clock of the present invention, when the first detection circuit detects a specific frequency in the performance music and at the same time, the second detection circuit detects an external specific sound, the first
and a second detection signal is generated.

When the first and second detection signals are generated simultaneously, in response, the reference volume setting circuit changes the reference volume of the performance signal to a set value and outputs the same.

The volume variable circuit, which receives the performance signal whose volume has been changed in this manner, outputs a sound signal with the volume of the performance signal varied to a predetermined state in accordance with the volume signal applied from the control circuit.

The sound generation circuit that receives this sound signal outputs an audible sound at a volume different from the normal volume.

(Example) An example of the present invention will be described below based on the drawings.

FIG. 1 is a diagram showing the circuit configuration of a decorative clock according to an embodiment of the present invention.

Reference numeral 2 denotes a clock circuit that measures time and outputs a clock signal.

Reference numeral 4 denotes an hour detection circuit which inputs a clock signal, detects the hour, and outputs an hour signal T.

6 is a decoration drive circuit which outputs a predetermined drive signal when the hour signal T is input, and 8 is a decoration consisting of a doll that operates when a drive signal is input, a motor that drives the doll, and the like.

Reference numeral 10 designates a performance signal output circuit, which includes an audio deck 12 that outputs a signal of a predetermined performance piece when the hourly signal T is input, and an amplifier 14 that amplifies the output signals and outputs performance signals M ₁ and M ₂ respectively. ,1
It consists of 6 and.

18 is a first detection circuit, which includes a filter 20 that inputs the performance signal _M1 and passes only that specific frequency.
and a constant voltage source 22 that supplies a set constant voltage.
, a comparator 24 that compares the output signals from the filter 20 and the constant voltage source 22, and a one-shot circuit 26 that inputs the output signal and outputs the first detection signal _D1 .

Note that this first detection circuit 18 in this embodiment
detects the sound of a bell in a performance song and outputs a first detection signal _D1 when the sound occurs.

Reference numeral 28 denotes an external sound detection circuit, which is composed of a microphone 30 that inputs external sound, and an amplifier 32 that amplifies its output signal and outputs it as an external sound signal OS.

34 is a second detection circuit, which is a filter 3 that inputs the external sound signal OS and passes only its specific frequency.
6, and a constant voltage source 38 that supplies a set constant voltage.
, a comparator 40 that compares the output signals from the filter 36 and the constant voltage source 38, and a one-shot circuit 42 that inputs the output signal and outputs a second detection signal _D2 .

This second detection circuit 34 in this embodiment detects the sound of a bell 44 installed near the external sound detection circuit 28, similar to the first detection circuit 18 described above, and detects the sound of a bell 44 installed near the external sound detection circuit 28.
Outputs detection signal _D2 .

46 is a reference volume setting circuit;
an AND gate 48 into which the detection signals D ₁ and D ₂ are input;
One-shot circuit 50 that inputs the output signal
, resistors 52 and 54 that lower the voltage of the performance signal M ₂ to the reference value, and an analog circuit that turns on in response to a pulse from the one-shot circuit 50 and outputs the performance signal M ₂ without going through the resistors 52 and 54. It consists of a switch 56.

58 is a control circuit, which includes a one-shot circuit 60 that outputs a pulse when the hour signal T is input, and a one-shot circuit 60 that inputs the first detection signal _D1 to the clock input C, and the data input D is connected to the H level, and the OR gate 62 is connected to the clock input C. A flip-flop (hereinafter abbreviated as "FF") 64 inputs the pulse from the one-shot circuit 60 to the reset input R through the flip-flop (hereinafter referred to as "FF"), and the signal from its output Q is input to the clock input C, and the signal from the output is input to the data input D. FF66 inputs the pulse from the one-shot circuit 60 to the reset input R, inputs the signal from the output Q of FF64 to the data input D, inputs the clock signal _φ1 to the clock input C, and inputs the pulse from the one-shot circuit 60 to the reset input R. The one-shot circuit 60 inputs pulses from the FF 68 to the reset input R, inputs the signal from its output Q to the data input D, and inputs the clock signal φ ₁ to the clock input C.
Input the pulse from FF7 to reset input R
0 and clock signal _φ1 are input, and FF70
AND gate 72 which inputs the signal from the output Q of
and input its output signal to the clock input φ.
An up-down counter 74 which inputs the signal from the output Q of the FF 66 to the U/D input and further inputs the signal from the one-shot circuit 60 to the reset input R.
, a decoder 75 which inputs the count value and outputs a volume signal V, and an up-down counter 74.
an upper limit detection circuit 77 and a zero detection circuit 79 that input the count value and detect its upper limit and zero, respectively;
A one shot circuit 81 which inputs the signal from the upper limit detection circuit 77 and outputs a pulse, a delay circuit 83 which delays the output signal and applies it to the reset input R of the FF 64 via the OR gate 62, and a zero detection circuit 79. The one-shot circuit 85 receives a signal from the FF 64 and applies a pulse to the reset input R of the FF 64 via the OR gate 62.

76 is a volume variable circuit which inputs the performance signal _M2 via the reference volume setting circuit 46, and outputs the volume signal V.
A multiplexer 78 that switches the plurality of resistors 80 in accordance with the change in volume to vary the volume and outputs the sound signal S.
It consists of

Reference numeral 82 denotes a sound generation circuit, which includes an amplifier 84 that amplifies the sound signal S, and a speaker 86 that inputs the output signal and outputs an audible sound.

Next, the operation of the decorative timepiece constructed as described above will be explained.

First, when the hour is on the hour, the hour signal T from the hour detection circuit 4 becomes H level, and the decoration drive circuit 6 which receives this signal applies a drive signal to the decoration 8. Therefore, the decorative body 8 starts an operation such as the stage protruding and a doll appears, and stops when a predetermined operation is completed.

On the other hand, at the same time as the movement of the decorative body 8, H
The audio deck 12 also operates in response to the level hourly signal T, and outputs a signal of the music to be played. This signal is amplified by amplifiers 14 and 16, respectively.
These are output as performance signals M ₁ and M ₂ .

The music to be performed in this example starts with the sound of a bell that gradually increases in volume, then a predetermined melody is played, and then ends with the sound of a bell that gradually decreases in volume. There is.

For this reason, the filter 20 to which the performance signal _M1 is input passes only a specific frequency included, for example, in the sound of a bell, and the comparator 24 detects whether or not the specific frequency signal is higher than a set value. As a result, when the sound of a bell is detected, a pulse is generated in the first detection signal _D1 from the one-shot circuit 26.

At this time, the audience rings the bell 44, and the sound is transmitted through the microphone 30 and amplifier 32 to an external sound signal.
When applied to the filter 36 as the OS, the filter 36 passes only the specific frequency included in the bell sound. This specific frequency signal is then compared by a comparator 40 to see if it is equal to or higher than a set value, and if it is detected to be the sound of an external bell, a pulse is generated from the one-shot circuit 42 to the second detection circuit _D2 . do.

In this way, when the external bell 44 is rung in time with the bell sound of the performance song, the first and second detection signals are simultaneously generated.
Pulses are generated at D ₁ and D ₂ .

These pulses are applied to AND gate 48 and are generated at its output, in response to which pulses are output from one shot circuit 50.

The analog switch 56 which receives this pulse is turned on and applies the performance signal _M2 to the multiplexer 78 as it is. Normally, this analog switch 56 is in the off state, so the performance signal M ₂
is lowered to a reference value by resistors 52 and 54 and applied to multiplexer 78.

Therefore, when the external bell 44 is not rung in time with the bell sound of the music to be played, the multiplexer 78 changes the volume based on the volume of this reference value, so that the bell 44 is rung in time with the bell sound of the music to be played. , the multiplexer 78 varies the volume based on a predetermined volume that has not been lowered to the reference value.

As a result, when the external bell 44 is rung in time with the bell sound of the performance song, the sound of the bell is sounded by the sound generation circuit 8 at a louder volume than the volume of the melody or normal bell sound.
It will be output from 2.

As described above, the volume of the bell sound in this embodiment is set to gradually increase or decrease.

Such volume adjustment is performed by the multiplexer 78 in accordance with the volume signal V from the control circuit 58.

That is, the FFs 64 to 70 and the up-down counter 74 in the control circuit 58 are reset by a pulse from the one-shot circuit 60 when the hour signal T reaches the H level. When a pulse is generated in the first detection signal _D1 , the output Q is set to H level in synchronization with the rising edge of this pulse. In synchronization with the rising edge of the signal, the FF 66 sets its output Q to the H level, and the up/down counter 74 to which this H level signal is input enters the state of up-counting.

At this time, the FF68, which inputs the H level signal from the FF64 to the data input D, changes its output Q to the H level in synchronization with the rise of the clock signal φ.
level and input this to data input DFF
70 also sets its output Q to H level in synchronization with the next rising edge of the clock signal _φ1 . This FF70
The AND gate 72 receives the H level signal from the output Q of the AND gate 72 and becomes open, and the clock signal φ ₁ is applied from its output to the clock input φ of the up-down counter 74 . At this time, since the up-down counter 74 is already in a state of up-counting, it starts counting up.

Here, the count value of the up-down counter 74 is applied to a decoder 75, and then applied to a multiplexer 78 as a gradually increasing volume signal V.

Thereafter, when the count value of the up-down counter 74 reaches the upper limit, the music to be played changes from a bell sound to a melody, and the upper limit detection circuit 77 detects the count value and sets its output to H level. In response to this H level signal, the one shot circuit 81 outputs a pulse, which is delayed for a certain period of time by the delay circuit 83 and applied to the reset input R of the FF 64 via the OR gate 62 to reset it. Therefore, the output Q of FF64
goes to L level, and as a result, FFs 68 and 70 sequentially bring their outputs Q to L level in synchronization with the rise of clock signal _φ1 . As a result, the AND gate 72 becomes closed.

After that, when the performance song changes from the melody to the sound of a bell, a pulse is generated again in the first detection signal _D1 , and in synchronization with the rise of the pulse, the FF64 changes its output Q to H.
level. Therefore, similar to the behavior described above,
FF68, 70 sequentially set their output Q to H level,
As a result, the clock signal φ ₁ is applied from the AND gate 72 to the up-down counter 74 .

In addition, when the output Q of FF64 rises to the H level, FF66 synchronizes with this and outputs
This time, the up/down counter 74, which receives this L-level signal at its U/D input, goes into a state in which it will count down, and as previously described, when the clock signal φ ₁ is applied, it starts counting down.

At this time, the decoder 75 outputs a volume signal V that gradually decreases.

Thereafter, when the count value of the up-down counter 74 becomes zero, the performance song ends at this time, and the zero detection circuit 79 detects the count value and applies an H level signal to the one shot circuit 85. As a result, the one-shot circuit 85 outputs a pulse,
This pulse is applied to the reset input R of FF 64 via OR gate 62 to reset it. Therefore, similar to the operation described above, FF68,
70 sequentially brings its output Q to the L level, thereby closing the AND gate 72 and returning to the initial state.

(Effects of the invention) According to the invention, when a specific external sound is input, the volume of a part of the performance piece corresponding to that external sound can be changed in synchronization with the external sound, so that the performance piece can be changed. It is possible to provide a decorative clock that can be enjoyed over a long period of time, and can be enjoyed for a long time by allowing the audience to participate.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the circuit configuration of a decorative clock according to an embodiment of the present invention. 2... Clock circuit, 4... Hourly detection circuit, 6...
Decorative body drive circuit, 8... Decorative body, 10... Performance signal output circuit, 18... First detection circuit, 28... External sound detection circuit, 34... Second detection circuit, 44...
Bell, 46... Reference volume setting circuit, 58... Control circuit, 76... Volume variable circuit, 82... Sound generation circuit.

Claims (1)

[Claims for Utility Model Registration] A clock circuit that measures time, an hour detection circuit that outputs an hour signal when it detects the hour, and a decoration drive circuit that outputs a drive signal in response to the hour signal. A decorative clock comprising: a decorative object such as a doll that operates when the drive signal is input; and a performance signal output circuit that outputs a performance signal when the hour signal is input; a first detection circuit that detects an external sound and outputs a first detection signal; an external sound detection circuit that detects an external sound and outputs an external sound signal; a second detecting signal and outputting a second detection signal;
a detection circuit; a reference volume setting circuit configured to change the volume of the performance signal from a reference value to a set value in response to simultaneous occurrence of the first and second detection signals; and a reference volume setting circuit responsive to the first detection signal; a control circuit that outputs a predetermined volume signal based on the volume signal; a volume variable circuit that responds to the volume signal to vary the volume based on the volume of the performance signal from the reference volume setting circuit and outputs it as a sound signal; A decorative clock comprising: a sound generation circuit that inputs a sound signal and outputs an audible sound;