JP2526844B2 - Sound generator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound generator for generating a sound having a tempo suitable for motion such as jogging.

[0002]

2. Description of the Related Art At present, there are portable audio devices such as an electronic metronome or a pacemaker that produces an electronic sound at a constant tempo, or a small tape recorder device, and the sound produced by them keeps pace of operations such as jogging. It is also used for

In these devices, the user obtains a rhythm suitable for his / her operation by operating a tempo setting switch or the like in advance or by mounting a cassette tape on which a music suitable for the operation is recorded.

[0004]

With such a conventional device, it is difficult to determine the one that suits one's own tempo at first because it generates a rhythm with a predetermined constant tempo, and it is further used. Even if the motion tempo of the person changes every moment, the tempo is constant, which causes a feeling of strangeness.

An object of the present invention is to provide a sound generating device which always emits a sound suitable for a user's operation tempo.

[0006]

[Means for Solving the Problems] A change unit that receives an output of a detection unit detects the movement of a person detected by the detection unit.
Change the sound tempo generated from sound generating unit in accordance with the cycle of Nau vibration, the acoustic Ten by a manual operation or the like
The above object is achieved by allowing the po to be held constant .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A melody generator according to an embodiment of the present invention will be described with reference to the drawings. This is a melody generator that is carried when exercising such as jogging. FIG. 1 is an electric circuit diagram showing the configuration of this device. In FIG. 1, 1 is a melody generating circuit as a sound generator, A melody is generated by a ROM that stores data for a memory, an addressing circuit, a D / A conversion circuit, and the like.

Reference numeral 2 denotes a detection circuit as a detection unit, which has the same configuration as the vibration detection unit currently used in a pedometer and generates a pulse for each vibration caused by a person walking.

Reference numeral 3 denotes a pulse generating circuit, which generates a timing pulse having a period T (pulse width t1) as shown in FIG.

A counter circuit 4 counts the output pulses output from the detection circuit while the timing pulse oscillated by the pulse generation circuit 3 is in the high state.

A latch circuit 5 holds the count value output from the counter circuit 4 for a certain period of time.

Reference numeral 6 is a CR oscillator circuit, which includes a capacitor C and resistors R1, R2, R3 and R4 (R1 <R2 <R3 <R.
4) and determines the tempo of the melody generated by the melody generating circuit 1.

A bidirectional switch circuit 7 comprises bidirectional switches SW1, SW2, SW3, and SW4, which are opened and closed by the output of the output pulse held in the latch circuit 5 to change the resistance value of the CR oscillation circuit 6. Selectively.

Reference numeral 8 denotes a tempo holding circuit as a holding means, which includes a mode switch SW5 and a D-flip-flop DF.
By operating this mode switch SW5, the tempo of the melody generated by the melody generating circuit is held at the state when the mode switch SW5 was operated.

The changing section is composed of the pulse generating circuit 3, the counter circuit 4, the latch circuit 5, the CR oscillating circuit 6, the bidirectional switch circuit 7, the tempo holding circuit 8 and the logic gate.

Reference numeral 9 denotes a sounding unit, which is composed of an amplifier, a speaker and the like, and sounds a melody generated by the melody generating circuit.

D1 and D2 are differentiating circuits.

Next, the operation of this apparatus will be described with reference to FIGS. 1 and 2.
This will be described with reference to the timing chart of FIG. When the user carries the device during exercise such as jogging, the detection circuit 2 detects the vibration accompanying the walking of the user and emits a pulse. During this time, a timing pulse as shown by 3a in FIG. 2 is generated from the pulse generating circuit 3, supplied to the AND gate a, differentiated by the differentiating circuit D1, and output to the reset terminal R of the counter circuit 4.

In the counter circuit 4, the differential pulse (see FIG.
R), the timing pulse is reset at each rising edge, and counting of the output pulse of the detection circuit 2 is started. As a result, during the time t1, the output pulse accompanying the vibration of the user such as walking detected by the detection circuit 2 is counted.

Here, during the time t1, the two pulses 2a1 and 2a shown in FIG.
If a2 is output, the output pulse 2a1 of the first output causes the output terminal Q1 of the counter circuit 4 to go high and the output terminals Q2, Q3, and Q4 to go low, as shown in FIG. The output terminal Q2 becomes High by the pulse 2a2, and the output terminals Q1, Q3, Q4
Becomes low, the count value is incremented for each output pulse from the detection circuit 2.

The above count values are output terminals Q1, Q2,
It is output to the latch circuit 5 from Q3 and Q4.

On the other hand, it is assumed that the output of the tempo holding circuit 8 is held at "1", whereby the AND gate c
Is open, and the differential pulse (FIG. 2CK) from the differential circuit D2 accompanying the fall of the timing pulse is supplied to the clock terminal CK of the latch circuit 5. The output of the counter circuit 4 at the arrival of this pulse is latched by the latch circuit 5. The contents held in the latch circuit 5 are output from the output terminals O1, O2, O3, O4 to the bidirectional switch SW1,
It outputs to SW2, SW3, and SW4, and the output signal is Hi.
In the gh state, these bidirectional switches are turned on.

Now, the count value of the counter circuit 4 is High at the output terminal Q2 and L at the output terminals Q1, Q3 and Q4.
Since it is ow, Hi is output from the output terminal O2 of the latch circuit 5.
Low is output from the output terminals O1, O3, and O4, the bidirectional switch SW2 is ON, and the bidirectional switch SW is
1, SW3, SW4 are turned off.

When the bidirectional switch SW2 is turned on, the resistance R2 connected in parallel with the bidirectional switch SW2 is short-circuited and the resistance value of the CR oscillation circuit 6 oscillates at R1 + R3 + R4, and the melody tempo of the melody generation circuit 1 is generated. Is determined.

As described above, when the bidirectional switches are turned on, the resistors connected in parallel with the bidirectional switches are short-circuited, and the sum of the resistors excluding these resistors causes the CR oscillation circuit 6 to be summed. The resistance value is determined, and thus the tempo of the melody generated by the melody generation circuit 1 (oscillation frequency of the CR oscillation circuit 6) is determined.

The resistance values of the resistors R1 to R4 are R1 <R
Since 2 <R3 <R4 is set, as the count value of the counter circuit 4 increases, the CR oscillation circuit 6
The resistance value of is decreased, the oscillation frequency of the CR oscillation circuit is increased, and the tempo of the melody is accelerated.

The melody circuit 1 receives the output from the latch circuit 5 via the OR gate d and the inverter e at the set terminal and ST, and outputs the output terminals O1, O2, O of the latch circuit 5.
When either 3 or O4 is High, it operates, and the melody is sounded by the amplifier and speaker of the sound generator 9.

The reset terminal RESET receives the output from the latch circuit 5 via the OR gate d, and when all the output terminals O1, O2, O3 and O4 of the latch circuit 5 are Low, a melody is generated. To stop.

FIG. 2 shows the waveform of each part in FIG. 1 when the count value of the counter circuit 4 changes to "2", "1", "3".

As described above, the tempo of the melody generated by the melody generating circuit 1 is set at each falling edge of the timing pulse.
It is updated according to the total number of output pulses (count value in the counter circuit 4) accompanying the vibration detected by the detection circuit 2 during the time t1 from the rise of the timing pulse. As a result, even if the tempo of the user's action changes momentarily, the tempo of the melody changes according to the vibrations associated with the user's action, so that it is possible to obtain a melody with no discomfort.

When the mode switch SW5 of the tempo holding circuit 8 is turned ON, the output of the D-flip flop DFF becomes Low, the input of the clock terminal of the latch circuit 5 is always Low, and the latch circuit 5 is in that state. Maintain content. Therefore, even if the count value of the vibration output from the counter circuit 4 changes, the output of the latch circuit 5 does not change, and the tempo of the melody becomes constant.

As a result, when the user turns on the mode switch SW5 when a melody with a desired tempo is generated, this device generates a melody with a constant tempo. Therefore, it is effective when the user wants to operate at a constant tempo.

Next, another embodiment of the present invention will be described with reference to the drawings.

In the above embodiment, the tempo of the generated melody is changed according to the total number of vibrations caused by the motion of the user detected during the fixed time. It is a melody generating device that changes the tempo of a melody according to the time interval of the generated vibration.

FIG. 3 is a block diagram showing the structure of this apparatus. In the figure, 1 is a melody generation circuit, 2 is a detection circuit, 6 is a CR oscillation circuit, 7 is a bidirectional switch circuit, 9 is a sounding section, and SW5 is a mode switch, which constitute the above-mentioned embodiment. The same operation is performed. A control circuit 10 includes a CPU, a RAM, and an R.
It is composed of OM or the like, and constitutes a changing unit together with the CR oscillation circuit 6, the bidirectional switch circuit 7, and the mode switch SW5.

Next, the operation of this apparatus will be described with reference to FIGS.
This will be described with reference to the flowchart of FIG.

First, the main power switch (not shown) is turned on.
(Start), the control circuit 10 resets the melody generating circuit 1 (step 4a), and determines whether or not the output pulse is emitted from the detection circuit 2 (step 4b). Here, when the user performs an action such as walking, an output pulse is emitted from the detection circuit 2 which detects the vibration associated therewith.
In the control circuit 10 which has received this output pulse, the first timing section (not shown) provided in the control circuit is activated to start timing (step 4c). This time measurement is such that the countdown is from (1111) to (0000) at regular intervals within 2 seconds. At the same time, the second timing unit (not shown) also provided in the same circuit is activated to start timing for 2 seconds (step 4d). Subsequently, the control circuit 10 determines whether or not the next output pulse is issued from the detection circuit 2 (step 4e).

When there is no output pulse output and the second clock section completes the clocking of 2 seconds (step 4f), the first clock section is reset (step 4g), (step 4a).
Returns to the previous initial state. That is, if the next vibration is not detected within 2 seconds, it is considered that the user is stopped and no melody is generated.

When the output pulse from the detection circuit 2 is received while the second timing section is timing, the timing of the first timing section is stopped (step 4h), and the value according to the timing at this point is set. It outputs from the output terminals o4, o3, o2 and o1 (step 4i). For example, the value according to the timekeeping is (011
If 1), the output terminal o4 becomes Low, and the output terminal o
3, o2, o1 become High, and the measured value is (010
In the case of 1), the output terminals o4 and o2 are Low, and the output terminals o3 and o1 are High. These output terminals o
The outputs from 4, o3, o2, and o1 turn on and off the bidirectional switches SW4, SW3, SW2, and SW1, respectively.
Then, the resistance value of the CR oscillation circuit 6 is determined in the same manner as in the above embodiment. Therefore, the larger the value according to the timekeeping in the first timing unit, that is, the shorter the pulse interval from the detection circuit 2,
The resistance value of the CR oscillation circuit 6 becomes small, and the CR oscillation circuit 6
The oscillation frequency of becomes high.

As described above, the tempo of the melody generated by the melody generating circuit 1 is determined, the melody generating circuit 1 generates a melody, and the sound producing section 9 produces a melody sound (step 4j).

Here, by turning on the mode switch SW5, a loop is started, the current tempo is held and the melody continues to be generated (step 4k).

If the mode switch SW5 is 0FF,
Then, reset the first clock unit (step 4l),
Timing of the second timing section is started (step 4m). Continuing, the control circuit 10 determines whether or not an output pulse is issued from the detection circuit 2 (step 4n). Here, when there is no output of the output pulse and the second time counting unit completes the time measurement for 2 seconds (step 4o), the state returns to the initial state before (step 4a).

When a pulse is received from the detection circuit 2 while the second timing section is timing, the timings of the first and second timing sections are restarted (step 4c,
4d), wait for the next output pulse, and this time is measured by the first timer. From this, the operation after (step 4e) is repeated, and the time interval between the output pulse from the detection circuit 2 in (step 4n) and the output pulse from the detection circuit 2 in (step 4e) is measured by the first timer. Output terminals o4, o3, o2,
The resistance value of the CR oscillation circuit 6 is determined by the output from o1, and the tempo of the melody generated by the melody generation circuit 1 is changed to a value corresponding to the cycle of vibration detected by the detection circuit 2.

As described above, since the tempo of the melody generated by the detection circuit 2 is changed according to the time interval of vibration, the number of vibrations is counted within a fixed time as in the above embodiment. The change in tempo and the change over time are smoother than those of the ones, and are more in line with the motion of the user.

In addition to being used in the melody generator used when the user is exercising as in the above embodiments, the present invention is attached to or built in a device or tool which is effective for listening to a melody during its use with vibration. It is possible to For example, it can be used in a lullaby generation device or the like that is attached to a swing basket or the like and generates a melody such as a lullaby while changing its tempo according to the swing.

Although the melody is generated by the melody generating circuit in the above embodiment, the present invention is not limited to this. For example, a beeping whistle sound or the like may be used, or a rhythm generating circuit may be used. May be generated to change the tempo of this rhythm sound.

[0047]

Since the changing unit receiving the output of the detecting unit changes the tempo of the sound generated by the sound generating unit in accordance with the cycle of the vibration accompanying the motion of the person detected by the detecting unit, it is always used. It becomes a sound suitable for the person's movement tempo, and it is possible to solve the problems of the conventional one, such as the trouble of first choosing one that matches my own tempo, the discomfort caused by the deviation from my movement tempo. Become.

Sound is generated by performing a manual operation or the like.
It is also possible to keep the tempo of the sound generated by the section constant
Therefore, the tempo that seems to be optimal is that
If you keep the tempo, you can get the best
It can be fixed to the computer. So for example jogi
Optimum for the pace such as
Can be paced. In this way, the tempo of the sound can be set to be constant or variable according to the motion, and it is possible to adapt to a wide range of uses by the user.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram showing a configuration of a melody generator according to an embodiment of the present invention.

FIG. 2 is a timing chart for explaining the operation of FIG. 1;

FIG. 3 is a block diagram showing the configuration of a melody generator according to another embodiment of the present invention.

FIG. 4 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

 1 Sound Generation Section 2 Detection Section 3 Pulse Generation Circuit 4 Counter Circuit 5 Latch Circuit 6 CR Oscillation Circuit 7 Bidirectional Switch Circuit 8 Tempo Holding Circuit 10 Control Circuit

Claims (1)

(57) [Claims] 1. A sound generator that generates sound and a human motion.
A detector for detecting a vibration caused by a changing unit for changing the sound tempo of the occurrence of the sound generation unit according to the period of detected by the detecting unit vibration, by a manual operation or the like
A sound generating device comprising: a holding unit that holds the sound tempo constant .