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JPH01149694

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DESCRIPTION JPH01149694
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker system used for a tape recorder with radio receiver and component stereo. 2. Related Art
In recent years, a speaker system used for a tape recorder with a radio receiver and a component
stereo listens to an optimum sound even when a person who is listening to the sound can not be
at an optimum place to hear the sound. It is required to create a state where it can. Hereinafter, a
conventional speaker system will be described with reference to the drawings. In FIG. 3, A + B is a
speaker box used for a tape recorder with a radio receiver or component stereo, and is composed
of woofer parts 1 and 2 and tweeter parts 3 and 4. A remote control unit 6 changes the direction
of the tweeter unit 3.4 of the speaker boxes A and H from a distant place. Such a conventional
speaker system uses a tape recorder with a radio receiver or a remote control unit 6 at a place
where a person who is listening to the sound of the component stereo is a speaker box A. The
tweeter portions 3 and 4 of B can be moved. For example, when the button a of the remote
control unit 6 is pressed, the tweeter unit 3 of the speaker box A can be rotated to the right.
When the button b of the remote control unit 5 is pressed, the tweeter unit 3 of the speaker box
can be rotated to the left. Next, when the button C of the remote control unit 6 is pressed, the
tweeter unit 4 of the speaker box B can be rotated to the right. When the button d of the remote
control unit 5 is pressed, the tweeter unit 4 of the speaker box B can be rotated to the left. As
described above, the tweeter units 3 and 4 of the speaker boxes A and B are independently
rotated by using the remote control unit 5 at a distant place, and the tweeter unit is located at a
place where there is a person who is listening to the sound. It is possible to turn 3 and 4
directions. However, in the configuration as described above, since the distance from the person
listening to the sound is different between the left speaker box A and the right speaker box B, the
difference in sound pressure and phase is different. It has the problem that it will occur. In view
of the above problems, the present invention provides a speaker system in which a difference in
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sound pressure or phase does not occur even when the distance from the person listening to the
sound differs between the left speaker box and the right speaker box. It is a thing. Means for
Solving the Problems In order to solve the above problems, the speaker system of the present
invention independently rotates the tweeter portions of the left and right speaker boxes and
simultaneously changes the sound pressure and the phase of the tweeter portions independently.
A remote control means is provided.
Operation With the above-described configuration, the present invention can prevent a difference
in sound pressure and phase even when the distance from the person listening to the sound
differs between the left speaker box and the right speaker box. . This makes it possible to create a
state where the user can hear the optimum sound even if the person who is listening to the
sound can not be in the best place to hear the sound. Embodiment A speaker system according to
an embodiment of the present invention will be described with reference to the drawings. FIG. 1
is a block diagram of a speaker system according to an embodiment of the present invention. In
FIG. 1, A and B are seven-peak boxes used for tape recorders with radio receivers and component
stereos, and are composed of woofer parts 1 and 2 and tweeter parts 3 and 4. 6 is speaker box A
from a distant place. It is a remote control unit that changes the direction of the tweeter units 3
and 4 of B, and changes the sound pressure and the phase of the tweeter units 3 and 4 at the
same time. 6 receives the instruction of the remote control V section 5; ?????????? It
is a sound pressure and phase control unit that changes the sound pressure of the tweeter units
3 and 4 of B, or advances the phase. The operation of the speaker system configured as
described above will be described below. First, the directions of the tweeter units 3 and 4 of the
left and right speaker boxes A and B are made independent by using the remote control unit 5 at
a place where a person listening to the sound of a tape recorder with a radio receiver or
component stereo is away. It can move. At the same time, an instruction is issued by the remote
control unit 6, the instruction is received by the sound pressure 9 phase control unit 6, and the
sound pressures of the tweeter units 3 and 4 of the left and right speaker boxes A and B are
independently varied. Can also be advanced or delayed independently. For example, when the
button-(1) of the remote control unit 6 is pressed, the tweeter unit 3 of the speaker box A can be
rotated to the right (left). When the button C (? of the remote control unit 5 is pressed, the
tweeter unit 4 of the speaker box B can be rotated to the right (left). The sound pressure and the
phase are commanded by the remote control unit 5, and the command is received by the sound
pressure 9 phase control unit 6 so as to be varied or advanced. The sound pressure of the
tweeter unit 3 of the speaker box A can be increased (decreased) by pressing the button e (0 of
the remote control unit 5, and by pressing the button q (b) of the remote control unit 5, the
speaker box The sound pressure of the tweeter portion 4 of B can be increased (decreased).
By pressing button 1 (j) of the remote control unit 6, the phase of the tweeter unit 3 of the
speaker box A can be advanced (delayed), and pressing the button k (a of the remote control unit
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6 The phase of the tweeter portion 4 of the speaker box B can be advanced (delayed). Next, FIG. 2
shows a specific wiring diagram of the block diagram of the speaker system shown in FIG. In FIG.
2, IC1 is a woofer speaker SP1. It is a power IC that drives SP2, and IC6 is a tweeter speaker SP3.
It is a power IC that drives SP4. C1 and C2 are capacitors that change the phase of the tweeter,
and IC2 is an electronic polymic IC that changes the phase with the phase capacitor C4 ░ C2.
IC3 is an electronic polyum IC that changes the sound pressure of the tweeter. The engineering
C4 and the engineering C7 are ICs for driving a motor for rotating the tweeter, and the IC 5 is an
IC for remotely controlling the electronic media C2, IC3 and the motor driving ICs 4 and 7. zl is a
light receiving unit for receiving a signal to the remote control unit C5. The operation of the
speaker system configured as described above will be described below. First, when a person
listening to a tape recorder with a radio receiver or component stereo is pushed away and
presses button a of the remote control unit 5 of FIG. 1, the light is received by the light receiving
unit z1 of FIG. The signal is transmitted to one terminal of 21 and to 11 terminals of remote
control / l / IC5. When the signal is received by the remote control 1v IC5, the voltage at the 12
terminal changes from oV to + 6v, and + sV is applied to the 6 terminal of the motor reverse
drive C4. When +6 v is applied to the 6 terminals, the power supply voltage vB of the motor
reverse drive IC is applied to 1 terminal. When the power supply voltage VB is applied to one
terminal, the voltage VB is applied to the forward terminal of the motor 7 and the motor rotates
in the forward direction, so that the tweeter portion 3 of the speaker box A in FIG. Rotate. Next,
when the button b of the remote control unit 5 of FIG. 1 is pressed, the light is received by the
light receiving unit z1 of FIG. 2 and the signal is transmitted to one terminal 21 and the other
terminal 11 of the remote control A / ICs. . When the signal is received by the remote control
yvlc 6, the voltage at the 13 terminal is reduced from Ov to +6 v, and +5 v is applied to the 6
terminal of the motor reverse drive IC 4. When +5 v is applied to the 6 terminals, the power
supply voltage VB of the motor reverse drive IC 4 is applied to the 2 terminals.
When the power supply voltage VB is applied to the two terminals, the voltage VB is applied to
the reverse terminal of the motor 7 and the motor rotates in the reverse direction, and the
tweeter portion 3 of the speaker box A in FIG. Next, when the button C of the remote control unit
6 of FIG. 1 is pressed, the light receiving unit z1 of FIG. 2 receives the signal, and the signal is
transmitted to one terminal 21 and to terminal 11 of the remote control / relay C5. When the
signal is received by the 5th motor controller #ICs, the voltage of the 14 terminal changes from
oV to +5, and +5 v is applied to the 6 terminal of the motor reverse drive C7. When +6 v is
applied to the 6 terminals, the power supply voltage VB of the motor normal drive C7 is applied
to 1 terminal. When the power supply voltage VB is applied to one terminal, the voltage VB is
applied to the normal rotation terminal of the motor 8, and the motor rotates in the forward
direction, so that the tweeter portion 4 of the speaker box B in FIG. . Next, when the button d of
the remote control unit 6 of FIG. 1 is pressed, the light receiving unit 2. of FIG. , And the signal is
transmitted to one terminal 21 of 21 and terminal 11 of the remote control IC. When the signal
is received by the remote control / l / IC5, the voltage at the 15 terminal changes from OV to +5,
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and +5 V is applied to the 6 terminal of the motor reverse drive IC7. When +6 v is applied to the
6 terminals, the power supply voltage VB of the motor reverse drive IC 7 is applied to the 2
terminals. When the power supply voltage VB is applied to the two terminals, the voltage VB is
applied to the reverse terminal of the motor 8 and the motor rotates in the reverse direction, and
the tweeter portion 4 of the speaker box B in FIG. Next, when the remote control 6 of FIG. 1 is
pressed, the button e of the light receiving unit z1 of FIG. 2 is pressed and the signal of pressing
the button e is 1 terminal 21 of the remote control / L. / Transmit to terminal 11 of IC6. When
the signal is received by the remote control IC 6, the voltage at one terminal is changed from Ov
to +5 V, and +5 is applied to the nine terminals of the electronic plasma C3. Next, the right side
signal input to one terminal and output from three terminals is increased by a polyum formed by
the 1.2.3 terminals of the electronic volume rC3. This signal is input to one terminal of the power
amplifier IC6, and the amplified signal is output from the six terminals to smooth the tweeter
SP3. Thus, the sound pressure of the tweeter portion 3 of the speaker box A of FIG. 1 can be
increased. Next, when the button f of the remote control unit 6 of FIG. 1 is pressed, a signal that
is received by the light receiving unit z1 of FIG. 2 and that the button f is pressed is 1 terminal
21 and 11 terminals of the remote control IC 5 It is transmitted to.
When the remote control IC 6 receives the signal, the voltage at the 2 terminal changes from oV
to +6 v, and +5 v is applied to the 10 terminal of the electronic volume XC3. Next, a volume
formed by the 1.2.3 terminal of the electronic volume C3 causes a small signal on the right side
to be input to one terminal and output from three terminals. This signal is input to one terminal
of the power amplifier IC 6 and amplified (the number i is output from the six terminals and the
tweeter SP3 is smoothed. Thus, the sound pressure of the tweeter portion 3 of the speaker box A
of FIG. 1 can be reduced. Next, when the button q of the remote control unit 5 of FIG. 1 is
pressed, a signal that the light receiving unit Z1 of FIG. 2 receives and the button q is received is
one terminal 21 of 21 of the remote control processor C6. Transfer to the terminal. When the
signal is received by the remote control unit C5, the voltage of the three terminals changes from
Ov to +5, and +5 v is applied to the 11 terminal of the electronic volume C3. Next, a volume
formed by the 4.5.6 terminals of the electron source C3 causes a large signal on the right side to
be input to the four terminals and output from the six terminals. This signal is input to the two
terminals of the power amplifier C6, and the amplified signal is output from the four terminals to
smooth the tweeter SP4. Thus, the sound pressure of the tweeter portion 4 of the speaker box B
of FIG. 1 can be increased. Next, when the button f of the remote control unit 5 of FIG. 1 is
pressed, a signal that the light receiving unit Z1 of FIG. 2 receives and the button h is received is
one terminal 21 of 21; Transfer to the terminal. When the signal is received by the remote
control / I / IC 5, the voltage at the four terminals is reduced from oV to +6 v, and +6 v is applied
to the 12 terminals of the electronic volume IC3. Next, a volume formed by the 4.5.6 terminals of
the electronic volume IC3 causes the signal on the right side which is input to the four terminals
and output from the six terminals to be small. This signal is input to the two terminals of the
power amplifier IC6, and the amplified signal is output from the four terminals and the tweeter
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SP4 is smoothed. Thus, the sound pressure of the tweeter portion 4 of the speaker box B of FIG. 1
can be reduced. Next, when the button i of the remote control unit 6 of FIG. 1 is pressed, a signal
that the light receiving unit Z1 of FIG. 2 receives and the button 1 is pressed is one terminal 21
of 21 of the remote control C6. Transfer to the terminal. When the signal is received by the
remote control IC 6, the voltage at the 6 terminal is reduced from oV to +6 v, and +5 v is applied
to the 9 terminal of the electronic plasma C2.
Next, the resistance of the volume formed by the two and three terminals of the electron beam
C2 decreases. With respect to the phase capacitor C1, since the resistor is connected to the
ground, the phase of the signal on the right side can be delayed. The signal whose phase is
delayed is increased or decreased in sound pressure by the electronic volume IC 3 and amplified
by the power amplifier IC 6 to smooth out the tweeter SP 3. Thus, the phase of the tweeter
portion 3 of the speaker box A of FIG. 1 can be delayed. Next, when the button i of the remote
control unit 5 of FIG. 1 is pressed, a signal that the light receiving unit Z1 of FIG. 2 receives and
the button i is pressed is one terminal 21 of 21 of the remote control iV I Cs 11 Transfer to the
terminal. When the remote control IC 6 receives the signal, the voltage at the 6 terminal changes
from OV to +6 v, and +5 v is applied to the 10 terminal of the electronic volume C2. Next, the
resistance of the volume constituted by the two and three terminals of the electronic volume IC2
increases. With respect to the phase capacitor C1, since the resistor is connected to the ground,
the phase of the right signal can be advanced. The signal whose phase is advanced is increased
or decreased in sound pressure by the electronic volume C3, amplified by the power amplifier
C6, and smoothed the tweeter SP3. Thus, the phase of the tweeter portion 3 of the speaker box A
of FIG. 1 can be advanced. Next, when the button i of the remote control unit 5 shown in FIG. 1 is
pressed, the signal received by the light receiving unit z1 of FIG. 2 and pressed that the button i
is sent from one terminal 21 to 11 terminal of the remote control IC 6 It is transmitted. When the
signal is received by the remote control IC 6, the voltage at the 7 terminal changes from Ov to +6,
and +5 is applied to the 11 terminal of the electronic plasma C2. Next, the resistance of the
polyum composed of the 6.6 terminals of the electronic polyum IC2 decreases. With respect to
the phase capacitor C2, since the resistor is connected to the ground, the phase of the left signal
can be delayed. The signal whose phase is delayed is increased or decreased in sound pressure
by the electronic volume C3 and amplified by the power amplifier C6 to smooth the tweeter SP4.
Thus, the phase of the tweeter portion 4 of the speaker box B of FIG. 1 can be delayed. Next,
when the button i of the remote control unit 6 shown in @ 1 is pressed, a signal that the light
receiving unit z1 shown in FIG. 2 receives the signal and presses the button i has one terminal 21
of 21, remote control iv r C5 Transfer to terminal 11.
When the signal is received by the remote control IC 5, the voltage at the 8 terminal is reduced
from oV to +5 v, and +6 is applied to the 12 terminal of the electronic plasma C2. Next, the
resistance of the polyum composed of the 5 and 6 terminals of the electron polychrome C 2
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becomes large. With respect to the phase capacitor C2, since the resistor is connected to ground,
the phase of the signal on the right can be advanced. The signal whose phase has been advanced
has its sound pressure raised and lowered by the electronic volume controller C3, and is
amplified by the power amplifier IC6 to smooth the tweeter SP4. Thus, the phase of the tweeter
portion 4 of the speaker box B of FIG. 1 can be advanced. As described above, in FIG. 2, the signal
on the right side is amplified by the power amplifier C1 and the phase noise is output at the same
time as the woofer -8P1 comes out, and at the same time the phase is delayed by the phase
capacitor C1 and the electronic polynium C2. The sound pressure was raised by the electronic
polyum C3. Do the lowering. Next, it is amplified by the power amplifier IC6 to form the tweeter
SP3. The left signal is also the tweeter SP4 in the same manner as described above. As described
above, according to the present embodiment, the tweeter portions 3.4 of the left and right
speaker boxes A and B are rotated, and at the same time the sound pressure and phase of the
tweeter portions 3 and 4 are independently varied. You can remotely control at a distance. As a
result, even when the distance from the person listening to the sound is different between the left
speaker box and the right speaker box, it is possible to prevent the difference in sound pressure
and phase from occurring. As described above, according to the present invention, the tweeter
portions of the left and right speaker boxes are independently rotated, and at the same time the
sound pressure and phase of the tweeter portions are independently varied, and the above
operations are remotely controlled. can do. This makes it possible to create a state where the
person who is listening to the sound can hear the optimum sound even if he can not be in the
best place to hear the sound.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a block diagram of a speaker system according to an embodiment of the present
invention, FIG. 2 is a wiring diagram of the embodiment, and FIG. 3 is a block diagram of a
conventional speaker system.
A, B ииииииииии Speaker box, 1 и 2 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и woofer part, 3, 4 и и и и и и и и
и и и и и и и и и и и и и и и и remote control unit ..... sound pressure 9 phase control unit, sp, 1sp2 ииииии
woofer -1IC1, IC6 ииииии power amplifier IC, SP SP и old ... tweeter, IC2 ░ 3 '4 Engineering C3 и и и и и и
electron Poriumu IC, IC 4, IC 7 и и и и и и motor Seyhan driving IC, 7, 8 и и и и и и motor, Engineering C5
и и и и и и remote control unit Engineering C1C1 , C2... Phase capacitor.
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