JP2002297129

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DESCRIPTION JP2002297129
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
input device using a piezoelectric element, and in particular, by striking a tapping surface in
accordance with the movement of a character appearing on the screen of a game machine or the
like. The present invention relates to an input device using a piezoelectric element capable of
inputting an amount of electricity generated as a digital signal to the game machine or the like.
[0002]
2. Description of the Related Art At present, although there are input devices using a
piezoelectric element, when the input device strikes the tapping surface portion of the case, the
electronic device is detected by detecting the presence or absence of a voltage generated from
the piezoelectric element. It is configured to turn on / off.
[0003]
SUMMARY OF THE INVENTION In the above-described conventional example, when the tapping
surface portion of the case is struck, the vibration of the tapping surface portion is applied to the
piezoelectric element, and a voltage is generated in the piezoelectric element to turn on the
switch. It is a simple thing called / OFF.
[0004]
Therefore, when striking the tapping surface of the case, in addition to the switch ON / OFF
function by the striking, the striking strength of the striking surface is detected, and the volume
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can be adjusted according to the intensity. The technical problem to be solved in order to obtain
an input device arises, and the present invention aims to solve the problem.
[0005]
SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above
object, and a piezoelectric element is attached to a housing having a tapping surface on the
surface, and the tapping surface of the housing is tapped. The amount of electricity generated at
the time is analog-processed by an analog processing circuit and input to a microcomputer
processing circuit, and a piezoelectric element configured to input a digital signal digitally
processed by the microcomputer processing circuit to a game machine or the like is used. An
input device, and the above-mentioned piezoelectric element provide an input device using a
plurality of piezoelectric elements disposed on the back side of the tapping surface portion of the
case.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of the present invention will
be described in detail below with reference to FIGS.
FIG. 1 is a block diagram of an input device 1 of the present invention.
In the figure, 2 is a piezoelectric element, and the piezoelectric element 2 is connected to an
analog processing circuit 3, and further, the analog processing circuit 3 is connected to a
microcomputer processing circuit 4, and microcomputer processing is performed by the
microcomputer processing circuit 4. The digital signal is configured to be input to the video game
machine 5 or the like.
[0007]
FIG. 2 is an explanatory oblique view showing the usage state of the input device 1 of the present
invention.
In FIG. 3 and FIG. 3, reference numeral 6 denotes a housing to which the piezoelectric element 2
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is attached.
The case 6 is composed of a main body 6a formed in a drum-like shape and a substantially
crescent-shaped auxiliary body 6b provided along the main body 6a and cut at both ends. Thus,
the main body portion 6a and the auxiliary body portion 6b should not be limited to the above
shapes, and various shapes are assumed.
[0008]
The body 6a of the housing 6 has a tapping surface 6c on the surface, and a single piezoelectric
element 2 or a plurality of piezoelectric elements 2, 2... Is attached to the back side of the tapping
surface 6c. In the case where the plurality of piezoelectric elements 2, 2... Are attached to the
back side of the tapping surface 6c, they may be provided on the periphery and in the middle of
the drum-shaped main body 6a. When that is the case, it is possible to distinguish the sound
when hitting the peripheral part of the tapping surface 6c of the drum-shaped case 6 from the
sound when hitting the central part so that the drum game can be generated from the video
game machine 5. Thus, when the operator strikes the tapping surface portion 6c of the housing 6
in accordance with the tapping operation of the character 5a appearing on the screen of the
video game machine 5, the tapping sound can be matched with the actual drum sound. can do.
Also, the piezoelectric element 2 may be installed on the auxiliary body 6b as in the case of the
main body 6a. In such a case, it is possible to input various tapping sounds to the video game
machine 5.
[0009]
That is, as shown in FIG. 4A, the vibration of the peak (basic vibration mode) of the large sound
pressure of the piezoelectric element 2 is converted into a voltage, digitally processed, and the
numerical output of the digital signal to be output is, Further, as shown in FIG. 6B, the vibration
of the peak of the small sound pressure of the piezoelectric element 2 is converted into a voltage,
and the numerical output of the digital signal to be digitally processed and output is, for example,
50. The sound pressure of various piezoelectric elements in between is converted to a voltage,
converted into a voltage, digitally processed, and the numerical output of a digital signal to be
output is defined as 60, 70, 80, 90, etc. By setting the sound quality or the volume, the tapping
sound at any place on the tapping surface 6c of the case 6 can be made suitable for the actual
sound quality or the volume.
[0010]
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Then, the usage example of the input device 1 of this invention is demonstrated according to
FIG.1 and FIG.2.
First, the housing 6 containing the piezoelectric element 2 is connected to the analog processing
circuit 3, the microcomputer processing circuit 4, and the video game machine 5. Then, the case
6 is tied to the thigh of the operator using the string 7. The operator sits, for example, in the
chair 8 and taps the tapping surface 6c of the housing 6 with a finger tip. This tapping operation
is performed in accordance with the movement of the character appearing on the screen of the
video game machine 5. Then, in response to the tapping operation of the operator, the
piezoelectric element 2 disposed at the tapping position catches the tapping sound and generates
a voltage (electricity). The voltage is analog-processed by the analog processing circuit 3,
amplified, and output to the microcomputer processing circuit 4. Since the microcomputer
processing circuit 4 converts the analog signal into a digital signal and outputs it as a numerical
output corresponding to the voltage generated by the piezoelectric element 2 to the television
game machine 5, the numerical output is Through the video game machine 5, sound quality or
volume adapted to the tapping operation of the operator is generated. Thus, it can contribute to
the improvement of the reflex nerve diameter and the sense of rhythm of the operator.
[0011]
The present invention can be modified in various ways without departing from the spirit of the
present invention, and it is natural that the present invention extends to those modified.
[0012]
According to the first aspect of the present invention, the tapping surface portion is provided on
the surface of the housing to which the piezoelectric element is attached, and the housing is
connected to the analog processing circuit and the microcomputer processing circuit, and the
microcomputer processing is further performed. When the circuit is connected to, for example, a
video game machine or the like, when the operator strikes the tapping surface portion of the case
in accordance with the operation of the character appearing on the screen of the video game
machine, the piezoelectric element A voltage is generated that conforms to the tapping.
Therefore, this voltage is analog-processed, amplified and converted into a digital signal by the
microcomputer processing circuit in the subsequent stage, and the digital signal is input to the
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video game machine and the volume or volume corresponding to the voltage generated in the
piezoelectric element The sound quality is generated from the video game machine or the like in
accordance with the movement of the character appearing on the screen of the video game
machine. Thus, in addition to the ON / OFF function of the switch included in the conventional
input device using a piezoelectric element, the present invention detects the striking strength at
the tapping surface and adjusts the volume according to the intensity. It becomes possible.
[0013]
Therefore, it is possible to use the input device requiring the strength of the striking force, for
example, to the general electronic musical instrument that simulates a percussion instrument,
and further, according to the invention described in claim 2, the tapping surface portion of the
housing By disposing a plurality of the piezoelectric elements on the back surface, it becomes
possible to specify the position where the tapping surface is struck, so simulation closer to an
actual musical instrument is possible.
[0014]
In addition, the present invention is an invention having an extremely remarkable effect, such as
being able to be applied to an extremely wide range, such as an input device of a game machine
including an element for hitting or hitting an object, and the like.
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