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JP2004186831

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complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2004186831
[PROBLEMS] To provide a vibration generating device capable of vibrating in accordance with
changes in scale and volume of a ringing tone played by an information terminal device and
environmental music. A general control unit 20 selects a specific file selected in advance from a
data storage unit 40 stored for each file of a plurality of ringing tones, and sends the acoustic
data to a sound source unit 50. The ringer tone is played from the speaker 90. At the same time,
the general control unit 20 converts the frequency of the pitch data included in one acoustic data
(for example, piano part data) selected in advance from the specific file into the vibration
frequency, and outputs the result to the control means 10. By applying the vibration, the
vibration generating means 1 can be vibrated together with the ringing tone according to the
scale and the volume in the combined mode. Further, in the manner mode, it is possible to
generate only the vibration according to the scale of the ringing tone and the change of the
volume. [Selected figure] Figure 7
Vibration generator
The present invention relates to a vibration generating device mounted on a small information
terminal device such as a cellular phone, and in particular, to a scale and / or volume such as
ringing tone and environmental music played by the information terminal device. The present
invention relates to a vibration generator that vibrates in accordance with changes in 2.
Description of the Related Art An apparatus disclosed in Patent Document 1, for example, exists
as an apparatus in which vibration is generated in accordance with a ringing tone. In this
vibration generating device, the first to fourth sound source data of the plurality of ringing tones
are held in the first to fourth melody parts in the sound source memory. Based on the sound
source data of the selected melody, a melody pulse signal that becomes high level in the talk
period and low level in the silence period is output to the vibration drive circuit, and based on the
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sound source data of the selected melody, By outputting the melody pulse to the vibration drive
circuit, the vibration drive circuit drives the vibration unit based on the melody pulse, and the
vibration unit vibrates according to the selected melody. However, in the device described in JPA-2001-268171, in the apparatus described in JP-A-2001-268171, the vibration drive circuit
responds to the melody pulse signal. Because the power-down and power-up are repeated and
switched, it is merely possible to drive the vibration unit when the melody pulse signal is at high
level and to stop the vibration of the vibration unit when the melody pulse signal is at low level. It
is nothing. That is, in the case of the patent document 1 described above, there is a problem that
the music and the vibration are not consistent, and the vibrator is only a monotonous one that
merely vibrates continuously. The present invention is intended to solve the above-described
conventional problems, and music can be expressed by vibration by changing the frequency of
vibration that can be felt by human being in accordance with the ringing tone that the
information terminal device can play. It is an object of the present invention to provide a
vibration generating apparatus as described above. A vibration generating apparatus according
to the present invention comprises a vibration generating means, a vibration control means for
generating a drive signal for vibrating the vibration generating means, and a data storage unit
storing acoustic data. And a sound source unit including a plurality of sound sources different for
each type of sound, and a control unit that selects a sound source from the sound source unit
based on the acoustic data read from the data storage unit to generate sound. The vibration
control means uses, as the drive signal, specific sound data from among the sound data read out
from the data storage unit, and the vibration generation means is included in the sound data in
the scale and / or volume It is characterized in that it is vibrated in accordance with the change
of.
In the vibration generating apparatus according to the present invention, for example, since it is
possible to change the frequency of vibration according to the change of the scale and / or
volume of the ringing tone, various ringing tones can be expressed by vibration. . Therefore, in
the non-manner mode, it is possible to generate a vibration matched to the ringing tone. In
addition, in the manner mode which prohibits ringing of the ringing tone, even if the ringing tone
can not be heard, it is possible to generate vibration which changes according to the change of
the scale and / or the volume. Thus, even in the manner mode, it is possible to know, for example,
whether a call has been received or a mail has been received. Alternatively, by making the
ringing tone correspond to the sender, the called party can be specified. In the above, the control
unit is configured to set the frequency of the reference pitch included in the sound data to a first
reference frequency, and the frequency of the vibration that is a reference at the time of
vibration to the first reference frequency. The acoustic data is centered on the second reference
frequency at the same ratio as the ratio of the first reference frequency to the second reference
frequency, where the second reference frequency is also low. The vibration control means
preferably includes a frequency conversion means for converting the specific acoustic data by
the frequency conversion means, as the drive signal. In the above configuration, since the
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frequency of the vibration generating means can be set in a band in which the human body can
feel, the ringing melody can be more clearly expressed by the vibration. If the second reference
frequency is set below the audible range and vibrations are generated around this second
reference frequency, it is also possible to produce a function as a body sonic. In the data
recording unit, a plurality of tracks in which a plurality of sound data different from one another
for each sound source or melody part are recorded are provided, and are recorded on a specific
track selected from the data recording unit. Vibration is generated on the basis of the sound data.
In the above configuration, since the user can arbitrarily set the part generating the vibration, for
example, the vibration according to the user's preference such as the vibration of the main
melody part or the vibration of the drum part is generated. It can be set. The sound data is
musical score data conforming to the MIDI standard. Alternatively, score data according to this
can be used.
The frequency conversion means may use software provided in the control unit or a vibration
control chip provided separately from the control unit. In the case of treatment with software
provided in the control unit, it is not necessary to use a vibration control chip, and therefore the
cost can be reduced. Moreover, when using a vibration control chip, since the burden on the
control unit can be reduced, the processing capability of the control unit can be increased.
Further, as the vibration generating means, a movable body supported so as to be capable of
reciprocating in a range of a predetermined stroke on a support, biasing means for biasing the
movable body toward the middle point of the stroke, and Magnetic drive means for applying a
driving force in a direction along the stroke to the movable body, comprising: a magnet provided
on one of the movable body and the support; and a coil provided on the other; And a control
means which is given a drive signal to cause the movable body to generate a vibration at a
natural frequency. In the vibration generating means of the above configuration, since the
followability of the vibration to the drive signal is high, it is possible to cope with the vibration
adapted to the complicated music. DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1
shows an embodiment of a vibration generating means, where A is a perspective sectional view
and B is a sectional view. The vibration generating apparatus according to the present invention
comprises the vibration generating means 1 shown in FIG. 1 and the control means 10 shown in
FIG. The vibration generating means 1 shown in FIG. 1 has a cylindrical magnetic case 2 as a
support and nonmagnetic covers 3 and 3 attachable to both ends thereof. A nonmagnetic shaft 4
is supported on the inner surface of the lid 3, 3, and the shaft 4 coincides with an imaginary
center line OO passing through the centers of the case 2 and the lid 3, 3. A coil 5 is fixed to the
inner wall of the case 2. The coil 5 is formed by cylindrically winding a coated wire such as an
enameled wire, and is slightly shifted to the lid 3 on one side (X1 side in FIG. 1) from the center
of the length of the case 2 in the X direction. It is fixed in position. A movable body 6 is provided
inside the case 2. The movable body 6 is provided with a nonmagnetic weight 7 at one end (X2
side) and a magnet M at the other end (X2 side). Further, yoke members 8a and 8b made of a
magnetic material are provided on both end surfaces of the magnet M. The weight 7, the yoke
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member 8 a, the magnet M and the yoke member 8 b are in the shape of a cylinder or a disk, and
all the outer peripheral surfaces are concentrically located with respect to the center of the shaft
4.
At the center of the movable body 6, that is, at the center of the weight 7, the yoke member 8a,
the magnet M, and the yoke member 8b, a hole 6a is formed which escapes in the X direction.
ing. Accordingly, the movable body 6 can be reciprocated along the axis 4 in the X direction
shown in the drawing with a stroke of a predetermined range. Since the shaft 4 is formed of a
nonmagnetic material, the movable body 6 is not attracted to the shaft 4 by the force of the
magnet, and the moving load when the movable body 6 moves along the shaft 4 is reduced. . The
outer diameter of the magnet M and the yoke member 8 b is smaller than the outer diameter of
the weight 7 and the yoke member 8 a and smaller than the inner diameter of the coil 5. Thus,
when the movable body 6 moves in the X1 direction along the axis 4, the portions of the magnet
M and the yoke member 8 b can move inside the coil 5. In this embodiment, the magnet M and
the coil 5 form a moving magnet type magnetic drive means. However, a moving coil type
magnetic driving means may be used in which a coil is mounted on the movable body 6 and a
magnet facing the coil is provided on the inner peripheral surface of the case 2. Biasing members
9, 9 are provided between both ends of the movable body 6 and the inner surfaces of the lids 3,
3. The movable body 6 is axially moved by the biasing members 9, 9 It is subjected to mutually
opposite biasing forces. It is preferable that the biasing members 9, 9 have the same spring
constant and exert the same elastic force at the same axial length. FIG. 1 shows a state in which
the coil 5 is not energized. At this time, the movable body 6 receives the biasing force from the
biasing members 9 located on both sides, and during its movement stroke. Located at a point.
The magnet M is magnetized so that the end face Ma in contact with the yoke member 8a and
the end face Mb in contact with the yoke member 8b have opposite magnetic poles. In the
embodiment shown in FIG. 1, the end face Mb is an N pole and the end face Ma is an S pole. In
this case, the magnetic flux φ generated by the magnet M is output toward the outer peripheral
direction through one of the yoke members 8b, and vertically traverses the coil 5 to reach the
case 2. Further, the magnetic flux φ is guided to the position facing the other yoke member 8a
through the inside of the case 2 made of a magnetic material, and is outputted from this position
toward the yoke member 8a to reach the S pole of the magnet M. Form a magnetic path.
Further, as shown in FIG. 1, when the movable body 6 is positioned at the middle point of the
movement stroke, the middle point of the width dimension of one yoke member 8 a in the X
direction is the winding axis direction of the coil 5. Match or nearly match the midpoint of In the
neutral state shown in FIG. 1, when current in the direction shown in FIG. 1B is applied to the coil
5, an electromagnetic force F is generated in the direction of X2 by the magnetic flux φ and the
current. A driving force in the X2 direction can be given. Further, by applying a reverse current
to the coil 5, it is possible to give the movable body 6 a driving force in the X1 direction. Next,
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the control means of the vibration generating apparatus will be described. 2 is a partial crosssectional view showing the facing relationship between the magnet and the coil, FIG. 3 is a block
diagram showing control means of the vibration generating apparatus, and FIG. 4 shows an
example of a drive signal given to the coil and the vibration of the movable body at that time. FIG.
As shown in FIG. 2, one end (winding start) of the coil 5 is a terminal Ta1, the other end (winding
end) is a terminal Ta2, and a midpoint between the terminals Ta1 and Ta2 (coil 5 Middle point) is
the intermediate terminal Ta3. The control means 10 shown in FIG. 3 has a position detection
means 11 connected to the intermediate terminal Ta 3, a signal generation means 12, a drive
means 13 and a vibration control unit 14. The drive means 13 is provided with two output parts,
one of which is connected to one terminal Ta1 of the coil 5 and the other connected to the other
terminal Ta2 of the coil 5. The signal generation unit 12 generates a drive signal S 1 based on an
instruction from the vibration control unit 14 and outputs the drive signal S 1 to the drive unit
13, and the drive current of the predetermined waveform from the drive unit 13 is a terminal of
the coil 5. It is applied to Ta1 and terminal Ta2. The drive signal S1 of a plurality of patterns is
stored in the signal generation means 12, and the drive signal S1 of any pattern is selected and
given to the drive means 13 by an instruction from the vibration control unit 14. Be Note that
what command the vibration control unit 14 gives will be described later. The position detection
means 11 detects that the movable body 6 has reached the neutral position shown in FIGS. 1 and
2, that is, the middle point of the reciprocating movement stroke. When the detection signal at
the middle point detected by the position detection means 11 is supplied to the signal generation
means 12, the signal generation means 12 controls the switching of the current direction of the
drive signal S1 based on the detection signal. It will be.
Although the position detection means 11 is not essential, when the position detection means 11
is provided, the sliding load of the movable body 6 becomes large, or the elastic force of the
biasing members 9, 9 Even in the case where the natural frequency of the movable body 6 is
greatly deviated due to a large change, the drive signal S1 can be generated following the change.
FIG. 4 shows the waveform of the drive signal S1. In this embodiment, the drive signal S1 is given
to the coil 5 as a rectangular wave, but the waveform of the drive signal S1 may be a triangular
wave or the like. In FIG. 4, the neutral point of the drive signal S1 is indicated by "0", and at this
time, the coil 5 is in the non-energized state. When the drive signal S1 rises in the forward
direction, a current flows from the terminal Ta1 to the terminal Ta2 with respect to the coil 5. At
this time, a driving force in the X2 direction acts on the movable body 6. Further, when the drive
signal S1 shown in FIG. 4 is in the reverse direction, a current reverse to the above flows through
the coil 5, and at this time, the movable body 6 is given a driving force in the X1 direction. As
shown in FIG. 4, the drive signal S1 includes an accumulation signal S1a. The accumulated signal
S1a excites the movable body 6 to resonate by its natural frequency. The accumulation signal
S1a includes excitation signals A1, A2 and A3. The excitation signals A1, A2 and A3 give a
current in the forward direction to the coil 5. In FIG. 4, the levels of the excitation signals A1, A2
and A3 are constant, and a constant amount of current is intermittently applied to the coil 5 by
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the excitation signals. FIG. 4 shows a vibration waveform in which the displacement of the
movable body 6 in the X1 direction and the X2 direction is taken along the vertical axis, together
with the waveform of the drive signal S1. The vibration waveform Om means that the movable
body 6 is located at the middle point shown in FIGS. 1 and 2. In both of the waveform chart of
the drive signal S1 and the diagram showing the amount of displacement of the movable body 6,
the horizontal axis is time t. The natural frequency (resonance frequency) of the movable body 6
is determined by the mass of the movable body 6 and the spring constant of the biasing member
9, 9 (spring constant in the neutral state shown in FIG. 1) The excitation signals A1, A2 and A3
are given for each period T which is the reciprocal of the natural frequency (resonance
frequency), and the conduction time is half of the period T. That is, the excitation signals A1, A2
and A3 are given when the movable body 6 has a velocity in the X2 direction, and the excitation
signals A1, A2 and A3 are given to the coil 5 to make them in the X2 direction. The driving force
in the X2 direction is further given to the movable body 6 having the velocity of.
The excitation signal A1 is a start signal. As the movable body 6 starts to vibrate by the excitation
signals A1, A2 and A3, the amplitude of the vibration due to the natural frequency increases with
time. In the accumulation signal S1a of the embodiment of FIG. 4, the reverse excitation signals
B1 and B2 are included between the adjacent excitation signals A1, A2 and A3. The reverse
excitation signals B1 and B2 give the coil 5 a current reverse to the excitation signal A. The
reverse excitation signals B1 and B2 are applied to the coil 5 when the movable body 6 has a
velocity in the X1 direction, and a driving force in the X1 direction is further applied to the
movable body 6. By alternately applying the excitation signal A and the reverse excitation signal
B as described above, the amplitude of the movable body 6 rapidly increases in a short time. The
accumulated signal S 1 a does not necessarily include the excitation signal A and the reverse
excitation signal B, and the movable body 6 is vibrated even if only the excitation signal A or the
reverse excitation signal B is used. It is possible to generate and expand its amplitude. In this
case, it is possible to rapidly increase the amplitude by increasing the amount of current of the
excitation signal A or the reverse excitation signal B. Further, even if the excitation signal A and
the reverse excitation signal B are applied only in the first period of the period in which the
accumulation signal S1a is applied, and then the current is not applied to the coil for a while
thereafter, the movable body 6 resonates. It is possible to maintain the amplitude. Here, the
increase in amplitude is maximized when the direction of driving and the direction of movement
of the movable body 6 are aligned, and the frequency is matched with the resonant frequency. As
a method of controlling the rate of increase (rate of decrease) of the amplitude, there are a
method of changing the input energy and a method of shifting the drive signal S1. As a method
of changing the former input energy, control based on amplitude change for changing the
magnitude of the drive current (or drive voltage) applied to the coil 5 and PWM (Pulse (Pulse) for
changing the conduction time of the drive current (or drive voltage) There is one due to Width
Modulation control. As the latter method of shifting the drive signal S1, there are a method of
shifting the phase and a method of shifting the frequency. In the PWM control, in the
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accumulation signal S1a, for example, the application time of the excitation signal A is made
shorter than the half of the period T, and the excitation is set to 0 by setting the excitation to 0
for the remaining time. It is possible to control so that the increase in amplitude does not become
excessive.
In the phase shift, the amplitude of the movable body 6 is excessively increased by slightly
advancing or delaying the excitation signal A with respect to the reference time without changing
the pulse width (time interval) of the signal. It is possible to control so that it does not become.
Furthermore, in the frequency shift, the drive frequency of the movable body is doubled the
resonant frequency and moved from a low frequency to a high frequency, or in the opposite
direction, or shifted from the shifted frequency to the resonant frequency. It is possible to control
so that the increase in the amplitude of the movable body 6 does not become excessive by
performing the operation of matching and shifting from the matched state. In this method, since
the excitation efficiency changes and the phase is shifted, it is possible to provide an excitation
section and a stop section. The driving signal S1 includes an attenuation signal S1b. The
attenuation signal S1b includes suppression signals C1, C2, and C3. The suppression signals C1,
C2 and C3 are 180 ° out of phase with the excitation signals A1, A2 and A3, and when the
movable body 6 has a velocity in the X1 direction, Thus, the movable body 6 is given a driving
force in the X2 direction opposite to the velocity direction. Thereby, the vibration of the movable
body 6 vibrating at the natural frequency is attenuated. In the embodiment of FIG. 4, the reverse
suppression signals D1 and D2 are provided between the suppression signals C1, C2 and C3, and
the current in the reverse direction is transmitted to the coil 5 by the reverse suppression signals
D1 and D2. Given. The driving force in the X1 direction, which cancels the velocity, is given to
the movable body 6 having the velocity in the X2 direction by the reverse suppression signals D1
and D2. By alternately providing the suppression signal C and the reverse suppression signal D,
the amplitude of the movable body 6 is sharply attenuated. Note that only one of the suppression
signal C and the reverse suppression signal D may be provided in the attenuation signal S1b.
Further, the suppression signal C and the reverse suppression signal D may be provided only in
the first half of the attenuation signal, or the periods of the suppression signal C and the reverse
suppression signal D may be gradually shifted. FIG. 5 shows the vibration waveform of the
movable body 6 in the case where the accumulation signal S1a and the attenuation signal S1b
are made continuous, and a signal obtained by combining the accumulation signal S1a and the
attenuation signal S1b is given with a period Te. There is. In FIG. 5, the number of excitation
signals A1, A2 and A3 in the accumulation signal S1a and the number of suppression signals C1,
C2 and C3 in the attenuation signal S1b are the same, and the excitation signals A1, A2 and A3
and the suppression signals The amount of current supplied to the coil 5 is the same for C1, C2
and C3.
Further, the number of reverse excitation signals B1, B2 and B3 is the same as the number of
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reverse suppression signals D1, D2 and D3, and the amount of current applied to the coil is the
same between the reverse excitation signal and the reverse suppression signal. The time lengths
of the accumulation signal S1a and the attenuation signal S1b are also the same. In FIG. 5, the
movable body 6 vibrates at the natural frequency (resonance frequency), the amplitude increases
with time in the accumulation signal S1a, and the amplitude attenuates in the attenuation signal
S1b. In FIG. 5, a line connecting the peaks of the amplitude of the movable body 6 is shown as an
envelope E. The envelope E increases or decreases according to the period Te of the
accumulation signal S1a and the attenuation signal S1b. The frequency fe is 1 / Te. The mass of
the movable body 6 is small, so the natural frequency (resonance frequency) is high. However,
the frequency fe of the envelope E can be set lower than the resonance frequency, and it is
possible to give a change in the magnitude of vibration. The change in the strength of the
vibration is characterized in that it can be felt as a change in pressure sensation (analge). Further,
since the frequency fe of the envelope E is in a frequency band in which a person can detect the
increase or decrease of the frequency fe, even when the magnitude of the amplitude is
maintained constant, the person is at the frequency fe. An increase or decrease can be effectively
felt as a change in vibration. The vibration of the envelope E shown in FIG. 5 is generated using
the small-sized vibration generating means 1 having a small mass of the movable body 6 and a
high natural frequency, and the frequency of the envelope E is set to a value that human can feel.
Then, a person feels the waveform of the envelope E as vibration. Further, by changing the
repetition period of the set consisting of the accumulation signal S1a and the attenuation signal
S1b in the drive signal S1, it is possible to freely change the period and the frequency of the
envelope E which can be felt by a person. The amplitude of the envelope E can also be changed
by changing the number and current amount of the excitation signal A and the reverse excitation
signal B, and changing the number and current amount of the suppression signal C and the
reverse suppression signal D. It is also possible to control the waveform of the envelope E. FIG. 6
shows an example thereof. In the drive example of FIG. 6, the accumulation signal S1a alternately
has the excitation signal A and the reverse excitation signal B, but the attenuation signal S1b is
only the suppression signal C and has the reverse suppression signal D. Not. The envelope E in
this case has a shape that rises sharply and converges gently.
In addition to this example, it is possible to control the waveform of the envelope E by changing
the contents of the accumulation signal S1a and the attenuation signal S1b. By changing the
waveform of the envelope E in this manner, it is possible to optionally generate vibrations that
the person feels sensitive to and vibrations that cause the person to feel dull and heavy. In FIG. 2,
when the center of the yoke member 8b in the width direction moves in the X1 direction
between the terminal Ta1 and the intermediate terminal Ta3, the lines of magnetic force
generated from the yoke member 8b cross the coil 5 As the position moves, a back electromotive
force (voltage) Va is induced between the terminal Ta1 and the intermediate terminal Ta3.
Further, even when the center in the width direction of yoke member 8b is similarly moved in the
X1 direction between intermediate terminal Ta3 and terminal Ta2, back electromotive force
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(voltage) Vb between terminal Ta2 and intermediate terminal Ta3. Is induced. Similarly, when
moving in the X1 direction, when the line of magnetic force generated from the yoke member 8b
coincides with the intermediate terminal Ta3, the counter electromotive force Va induced
between the terminals becomes equal to the counter electromotive force Vb. . When the moving
direction of the movable body 6 is changed to the X2 direction, the polarities of the back
electromotive forces Va and Vb induced in the coil 5 are opposite to those when moving in the
X1 direction. At the position of maximum amplitude in the X1 and X2 directions at which the
movement of the movable body 6 stops, the lines of magnetic force generated from the yoke
member 8b do not change temporally, so the back electromotive force becomes zero. Therefore,
the center of the yoke member 8b in the width direction coincides with the intermediate terminal
Ta3 by detecting the timing of switching between the back electromotive force Va and the back
electromotive force Vb. It is possible to detect the point in time and the point of maximum
amplitude. Then, the resonance frequency of the movable body 6 is tracked by setting the timing
of generation of the excitation signal A, the reverse excitation signal B, the suppression signal C,
and the reverse suppression signal D using this detection time point as described above. The
drive signal S1 can be generated. Next, an embodiment in which the above-described vibration
generating device is mounted on a mobile phone will be described. FIG. 7 is a block diagram
showing an outline of a system configuration of a mobile phone equipped with a vibration
generator. As shown in FIG. 7, an integrated control unit (control unit) 20 that manages and
controls the entire system is provided at the center of the mobile phone 100. The general control
unit 20 is constituted by a one-chip microcomputer mainly composed of a CPU, and the general
control unit 20 is connected to a signal processing unit 30, a data storage unit 40, and a sound
source unit 50.
Further, in the general control unit 20 shown in FIG. 7, software for controlling these is
incorporated. A wireless unit 60 and a reception / transmission unit 70 are connected to the
signal processing unit 30. In the sound source unit 50, a D / A converter 80 is connected, and a
speaker 90 for producing a ringing tone is provided at a subsequent stage thereof. The control
means 10 described above is connected to the rear stage of the sound source unit 50, and the
vibration generating means 1 is connected thereto. The reception / transmission section 70 has a
microphone 71 and a receiver 72. The microphone 71 converts the user's voice into a
transmission voice signal and outputs it to the signal processing unit 30, and the receiver 72
outputs the reception voice from the other party based on the reception voice signal from the
signal processing unit 30. ing. The signal processing unit 30 is controlled by the general control
unit 20, and converts the demodulated signal from the wireless unit 60 into a reception voice
signal and causes the receiver 72 to output it, while the transmission voice signal from the
microphone 71 is a transmission signal. It converts and outputs to the wireless unit 60. The
wireless unit 60 converts the received signal received from the base station via the antenna 61
into a demodulated signal and outputs the demodulated signal to the signal processing unit 30,
while modulating the transmission signal from the signal processing unit 30. Are transmitted to
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the base station via the antenna 61. The data storage unit 40 can store sound data of a ringing
tone downloaded from a site on the network connected via the wireless unit 60. The downloaded
sound data is filed for each ringing melody and held in the data storage unit 40. The sound
source unit 50 has various sound sources (tones) conforming to the MIDI (Musical Instrument
Digital Interface) standard. Various types of MIDI standards have been proposed, but in the case
of Level 1 of the basic GM standard (General MIDI standard), a total of 128 types of timbres are
prepared. However, in the small information terminal equipment such as the portable telephone
100, for example, as shown in Table 1, the sound source unit 50 may have only the main one
among them because of the restriction on the memory capacity etc. . Table 1 <img class =
"EMIRef" id = "198212022-00003" /> FIG. 8 is a block diagram showing a configuration of the
sound source unit.
As shown in FIG. 8, the sound source unit 50 includes a first-in first-out (FIFO) memory 51 which
is a transfer data buffer, a sequencer 52 which functions as a performance processing controller,
and an FM synthesizer 53 which functions as a sound source. . The D / A converter 80 shown in
FIG. 7 converts a ringing melody (digital signal) output from the sound source unit 50 into an
analog signal and transfers it to the speaker 90. Thus, the ringing tone is played from the
speaker 90. The sound data of the ringing tone downloaded to the data storage unit 40 is created
in a format conforming to the MIDI standard, and is, for example, a musical score format
including timbre data, scale data, volume data, musical note data, and the like. It has become. The
tone color data is created with reference to Table 1 above. For example, “0 (Hex)” meaning
acoustic piano and “40 (Hex) meaning soprano saxophone” Indicates the type. The scale data
is data in which "do", "re", "re #", etc. are arranged in accordance with the progress of the ringing
tone of the sound frequency (pitch). One scale data is centered on the sound of "C (do)", for
example, when the sound of "C (do)" of 88-key piano is used as a reference (first reference
frequency) of the frequency 400 Hz. It indicates which of the 128 steps assigned to the keyboard
is the frequency. The volume data is data indicating the strength of the sound in stages. For
example, when the silent state is “0” and the maximum volume state is 128 stages of “127”,
the size of the number of steps is Show that. The note data is data indicating the length of the
sound, such as quarter note and eighth note. Such sound data is filed and registered in the data
storage unit 40 for each ringing tone. One ring tone file has a plurality of tracks tr, and each
track tr generally corresponds to one musical instrument (tone). For example, as shown in FIG. 7,
the first track tr1 is assigned for each file (ring tone melody) like the piano part, the second track
tr2 for the electric guitar part, and the third track tr3 for the synthesizer etc. . Alternatively,
depending on the file, the first track tr1 may be the main melody part (piano part), the second
track tr2 may be the rhythm part (bass), and the third track tr3 may be the rhythm part (drum).
It may be assigned.
By performing the operation according to the series of procedures using the operation buttons of
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the mobile telephone 100, the user can select in advance a ringing tone played by the mobile
telephone 100 at the time of an incoming call. In addition, the user can also select whether to be
in a non-manner mode in which an incoming call is notified by a ringing tone or in a manner
mode in which an incoming call is notified by an oscillating function instead of the ringing
melody. When the mobile phone 100 receives an incoming call in the non-manner mode, the
general control unit 20 reads out the file corresponding to the selected ringing tone from the
data storage unit 40 and the sound source unit Send to 50 Sound data in the file is sent out to
the FIFO memory 51 of the sound source unit 50. The FIFO memory 51 sends sound data to the
sequencer 52 in order from the sound data read first. The FM synthesizer 53 has a plurality of
channels, and can be played for each channel. Usually, the track numbers correspond to
channels. Therefore, as described above, when the first track tr1 is a piano part, the first channel
is in charge of the piano part, and in the case of being a main melody part, it is in charge of the
main melody. The sequencer 52 assigns each track (part of the musical instrument) to each
channel of the FM synthesizer 53, and generates sound data (tone data, scale data, volume data,
and the like) for each track tr contained in the file. Send note data etc. to each channel to play.
Each channel of the FM synthesizer 53 is converted into a digital signal including a scale, a
volume, and the like along a time series based on note data included in sound data and is output.
The D / A converter 80 is provided corresponding to each of the channels, and converts the
digital signal output from the FM synthesizer 53 for each channel into an analog signal. The
analog signal is amplified by an amplifier (not shown) so that a ringing tone is played from the
speaker 90. Here, when the user sets the portable telephone 100 in the manner mode or in the
combined mode in which the ringing melody and the vibration function are operated together in
the non-manner mode, as follows: The vibration generating means 1 vibrates in accordance with
the ringing tone.
However, as the premise, regardless of the manner mode and the combination mode, the user
generates the vibration of the vibration generating means 1 in accordance with any musical
instrument or melody part of the selected ringing melody. It is necessary to select whether or not
to execute, that is, select the track number. This setting can be performed by operating an
operation button provided on the mobile phone 100. There is an incoming call to the cellular
phone 100 set as described above, and the general control unit 20 reads out the file
corresponding to the ringing tone selected in advance from the data storage unit 40 in the same
manner as described above, and the sound source unit At the time of sending to 50, the general
control unit 20 reads out a specific track tr which has been selected in advance from the file, and
converts the converted signal St obtained by performing a predetermined conversion process on
the sound data constituting the track tr. Send to the sound source unit 50. The conversion
process is, for example, a process of converting scale data included in sound data at a
predetermined compression ratio, and the conversion of adding the other volume data and the
note data as they are to the converted scale data is the conversion It is a signal St. That is, the
general control unit 20 sets the second reference frequency to the first reference frequency (for
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example, a sound having a frequency of 400 Hz corresponding to “C (d) sound of 88 key
piano)”. The process of converting to (for example, 40 Hz) is performed by software. In this
case, the ratio of the first reference frequency to the second reference frequency is 40/400 =
1/10. The general control unit 20 converts all the scale data (the number of vibrations) included
in the sound data according to the ratio. That is, the general control unit 20 functions as
frequency conversion means for converting the scale data into new scale data centered on the
second reference frequency with the “C (do) sound” of the 88 key piano. have. An empty
channel in the FM synthesizer 53 is allocated to the conversion signal St by the sequencer 52
provided in the sound source unit 50. Then, the converted signal St is converted into the same
digital signal by the FM synthesizer 53, and this digital signal is output as the command signal
Sd. In this case, the command signal Sd is output not to the D / A converter 80 but to the
vibration control unit 14 of the control means 10. In the vibration generating apparatus, when
the command signal Sd is input to the vibration control unit 14 shown in FIG. 3, the signal
generation unit 12 generates the drive signal S1 based on the command signal Sd, and this
driving is performed. A signal S1 is output to the drive means 13.
Then, in the same manner as described above, a drive current corresponding to the drive signal
S1 is applied from the drive means 13 to the terminals Ta1 and Ta2 of the coil 5, and the
movable body 6 is vibrated in the X direction. Also at this time, the drive signal S1 of any pattern
selected by the command from the vibration control unit 14 is selected and given to the drive
means 13. Since the drive signal S1 for driving the vibration generating device is generated from
the sound data forming the ringing tone, the movable body 6 of the vibration generating device
is used as the ringing tone for the scale (pitch) and / or It can vibrate in synchronization with the
change in volume. Also, since this vibration occurs on the basis of the low second reference
frequency after conversion, the user can sense this vibration. Moreover, since the vibration of the
vibration generator changes in accordance with the change of the ringing tone, ie, the scale data
and the volume data which change along with the progression of the music, the vibration can
express the ringing melody. Therefore, even in the manner mode, melody can be associated by
feeling vibration. Further, when the casing of the mobile phone 100 is brought into contact with
the cheekbone or the like, the vibration transmitted to the ear by bone conduction can be
converted into a sound, so that it is possible to hear the ringing tone. That is, the ringing melody
can be felt by the generated vibration without generating a loud sound by the speaker 90.
Therefore, if the user sets the ring tone and track number for each other party of the telephone
and mail based on the telephone number and the mail address, the incoming call is a telephone
or mail in the manner mode. You can know the incoming call status of the callee and the other
party. Moreover, it is possible to generate vibration by using the data of the ringing tone
currently in circulation as it is. Incidentally, in the mobile phone 100 described above, since the
general control unit 20 performs conversion processing of acoustic data, it is necessary to add
special software processing to the software of the general control unit 20 at the same time. The
load of the processing in the general control unit 20 may be excessive. Therefore, the load on the
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general control unit 20 can be alleviated by converting the vibration control means into an LSI
and processing a part of the processing performed by the software of the general control unit 20
using hardware. It becomes possible. The embodiment will be described below.
FIG. 9 is a block diagram showing another embodiment of the main part in the system
configuration of the portable telephone equipped with the vibration generating device. In FIG. 9,
the signal processing unit 30, the wireless unit 60, and the reception / transmission unit 70 are
omitted. In FIG. 9, each signal line is branched from a parallel interface provided between the
general control unit 20 and the sound source unit 50, and a part of the functions of the general
control unit 20 and control means A part of the functions of 10 is input to a vibration control
chip 110 which is LSIified. The vibration control chip 110 has a rewritable rewrite storage unit
such as a flash ROM, and the rewrite storage unit generates the conversion processing part of the
scale data, and the accumulation signal and the attenuation signal. The portion corresponding to
the signal generation means 12 of the control means 10 is micro-coded. Also in this
configuration, when the mobile phone 100 receives an incoming call, sound data is given to the
sound source unit 50 from the file of the ringing tone, but sound data is given to the vibration
control chip 110 at the same time. The vibration control chip 110 extracts only sound data
corresponding to the track tr selected in advance by the user, and converts the sound scale data
included in the sound data into new sound scale data converted at a predetermined compression
ratio. It is converted into a converted signal St to which other volume data and note data are
added. A portion corresponding to an FM synthesizer provided in the vibration control chip
generates a command signal Sd from the conversion signal St, and a portion corresponding to the
signal generation means 12 of the control means 10 generates a command signal Sd from the
command signal Sd. The drive signal S1 is generated and applied to the vibration generating
means 1. Therefore, in this case as well, the vibration control means 1 can vibrate in accordance
with the change of the scale and / or the volume of the ringing tone as described above. In the
above embodiment, although the vibration generating apparatus vibrates in accordance with the
ring tone for the telephone or mail of the mobile phone, music and the buzzer sounded in
accordance with the other alarm function and the schedule function are described. Vibration or
only vibration may be generated. In the above, sound data of a specific track tr is selected to
generate vibration, but a track dedicated to a vibration part may be added to the data format of
the ringing melody. In this case, by converting so-called environmental music, such as the sound
of waves, the sound of serpentine Ogawa, and the voice of birds, into vibrations, it is possible to
provide the mobile phone with a sense of presence, and add value to the information terminal. It
is possible to enhance.
In this case, the sound data is not score data for playing pure music, but is the music score of the
environmental music data. As described above, according to the present invention, in the
combination mode, it is possible to generate a vibration that the user can feel according to the
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change of the scale and volume of the ringing tone. Further, in the manner mode, changes in the
scale and volume of the ringing tone can be expressed by vibration. BRIEF DESCRIPTION OF THE
DRAWINGS FIG. 1 shows an embodiment of vibration generating means, A is a perspective
sectional view, B is a sectional view, and FIG. 2 is a partial sectional view showing an opposing
relationship between a magnet and a coil. Fig. 3 is a block diagram showing control means, Fig. 4
is a diagram showing an example of a drive signal given to a coil and vibration of a movable body
at that time, Fig. 5 a signal combining an accumulated signal and an attenuation signal FIG. 6 is a
diagram showing the relationship with the vibration waveform of the movable body, FIG. 6 is a
diagram showing an example of controlling the vibration waveform of the envelope, FIG. 8 is a
block diagram showing the configuration of a sound source unit, FIG. 9 is a block diagram
showing another embodiment of the main part in the system configuration of a portable
telephone equipped with a vibration generator, Vibration generating means 2 Case 4 axis 5 coil 6
Movable body 7 Weight 8a, 8b Yoke member 9 Bias member 10 Control means 11 Position
detection means 12 Signal generation means 13 Drive means 14 Vibration control unit 20
General control unit (control unit) 40 Data storage unit 50 Sound source unit 100 Mobile phone
110 Vibration control chip A, A1, A2, A3 Excitation signal B, B1, B2 reverse excitation signal C,
C1, C2, C3 suppression signal D, D1, D2 reverse suppression signal E envelope S1 drive signal
S1a accumulation signal S1a accumulation signal S1b attenuation signal Sd command Signal St
conversion signal Ta1, Ta2 terminal Ta3 intermediate terminal M magnet
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