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JP2006332923

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2006332923
PROBLEM TO BE SOLVED: In the case of a small communication device to be worn on the user's
ear, a large battery can not be provided, so that it is difficult to mount a transmitter that
consumes a large amount of power. Therefore, in order to input the user's voice while omitting
the transmitting device, it is necessary to provide a microphone on the PC side. SOLUTION: This
microphone device 1 supports a main body 3, a cover 5 attached to the upper surface side of the
main body 3, a lower case 7 attached to the lower surface side of the main body 3, and a support
for rotatably supporting the main body 3. And a USB terminal 11 provided on the support 9 and
connected to an external device such as a PC. Further, a sound hole 13 is provided on the surface
of the cover 5. [Selected figure] Figure 4
Microphone apparatus and wireless communication system provided with microphone apparatus
[0001]
The present invention relates to a microphone device having a wireless communication function
connected to and used in a PC (personal computer) or the like, and a wireless communication
system including the microphone device.
[0002]
In recent years, in a system using communication devices such as a videophone system and a
video conference system, a user often wears and uses a communication device having an audio
input / output device such as headphones and a microphone.
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In addition, communication with a communication device management system main body having
a display, a PC, and the like is performed wirelessly from a communication device worn by a user,
and the system is realized.
[0003]
In the case of a system using such a communication device, the communication device needs a
transmission unit for transmitting voice information to the PC. When transmitting an audio
signal, it is common to transmit by radio waves or infrared rays. As an example using such a
system, for example, as described in "patent document 1", a mobile phone is used as a
communication device to exchange information with a PC.
[0004]
JP 2001-127847 A
[0005]
However, when a mobile phone is used as a communication device, the device worn by the user
becomes large and it is unsuitable for use in a long meeting or the like.
In addition, small and light communication devices are also required as market needs, and
communication devices specialized for usage purposes such as video telephone systems and
video conference systems are also required. Therefore, as a communication device to be attached
to the user, an earphone provided with a device for wirelessly receiving voice information etc. of
the other party and a receiver for outputting the voice information is prepared, and as a device
on the PC side, A system is conceivable that includes a communication device that transmits
voice information of the other party and a microphone that collects the voice of the user.
[0006]
According to such a system, since the microphone can be provided on the PC side, the
communication device can be specialized for the receiver function, and the size and weight can
be reduced.
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[0007]
However, in a system with such a configuration, it is necessary to consider the problem of radio
interference with other communication devices, etc., in wireless communication between the PC
side and the communication devices.
In addition, when a plurality of users such as a video conference system use a plurality of
communication devices, attention must be paid because the problem of radio interference in
particular becomes significant. As measures against this, the directivity of the wireless
communication between the PC side and the communication device can be enhanced and the
output can be weakened, but due to the weak output and directivity, between the PC side and the
communication device Communication problems or false reception may occur. Furthermore,
since the microphones are placed apart from the user, there is also a problem that voices of
people other than the user and ambient noise are picked up as noise.
[0008]
The present invention has been made in view of such circumstances, and is a microphone device
mounted on a PC or the like capable of communicating with a small communication device worn
on the user's ear, and the microphone device It is an object of the present invention to provide a
wireless communication system provided with
[0009]
That is, the microphone device according to the present invention is a microphone device that is
connected to an external device and can communicate with an external communication device
worn and used by the user, and collects external sound through the sound hole. , A wireless
communication unit having a data communication unit for communicating with the external
communication device, a housing for holding at least the microphone and the wireless
communication unit, the microphone, and the wireless communication A connector unit for
electrically connecting the unit and an external device, and the housing is provided with a hinge
unit for rotatably attaching the housing to the connector unit, and the data A communication
surface including the communication unit and the sound hole provided on the communication
surface are formed.
[0010]
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Further, the wireless communication means is a radio wave communication means, and the
communication surface of the casing is formed of a radio wave transparent resin.
[0011]
Furthermore, the connector section is characterized by having a USB terminal.
[0012]
Further, the external communication device is characterized by comprising at least an earphone
and a wireless communication means, and the external device is an electronic device having a
USB terminal.
[0013]
As shown in the above configuration, in the microphone device according to the present
invention, the housing is connected to the connector portion via the hinge portion for rotatably
attaching the housing, and the sound hole is formed, and the data communication is performed It
is characterized by having a communication surface in which a unit is included.
This allows the user to freely direct the sound hole toward the user, and by pointing the sound
hole to the user's direction, the communication surface can be simultaneously directed to the
user. It is possible to adjust the communication direction unconsciously.
In addition, by using the communication direction toward the external communication device,
weak wireless signals can be used when performing wireless communication with the external
communication device, so the power consumption of the external communication device can be
reduced. In addition, interference with other communication devices can be prevented.
[0014]
Furthermore, by forming the communication surface of the housing with the radio wave
transmission resin, the communication surface can be covered without impairing the
communication function, and the design can be improved.
[0015]
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Further, by providing the USB terminal as the connector portion, it becomes possible to cope with
various PCs.
[0016]
Further, as shown in the above configuration, a wireless communication system including a
microphone device is configured by an external communication device including at least an
earphone and wireless communication means, an external device by an electronic device
including a USB terminal, and a microphone device. By doing this, an inexpensive system that can
use an existing PC can be configured.
Furthermore, by connecting the microphone device to an external device such as a PC and
configuring the earphone and the wireless communication means on the user side, a wireless
communication system can be constructed in which the external communication device on the
user side can be configured in a small size and light weight. It becomes possible.
[0017]
Hereinafter, embodiments of the present invention will be described using the drawings.
[0018]
FIG. 1 is a perspective view showing a microphone device 1 according to an embodiment of the
present invention, and FIG. 2 is a perspective view showing mounting on a circuit board 15 with
the cover 5 of FIG. 1 removed.
FIG. 3 is a block diagram showing the electrical connection of the wireless communication
system 100. As shown in FIG.
[0019]
As shown in these figures, the microphone device 1 can rotate the main body 3, the cover 5
attached to the upper surface side of the main body 3, the lower case 7 attached to the lower
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surface side of the main body 3, and the main body 3. And a USB terminal 11 provided on the
support 9 and connected to an external device such as a PC.
Further, a sound hole 13 is provided on the surface of the cover 5.
[0020]
In the microphone device 1, as shown in FIG. 2, a circuit board 15 is accommodated inside the
cover 5. The circuit board 15 includes a microphone unit 17, a radio wave transmission antenna
19, and acoustic data input / output. A circuit 21 and a signal conversion transmission circuit 23
and the like are mounted.
[0021]
The main body 3 is rotatably supported by the support portion 9, and the microphone unit 17
and the radio wave transmission antenna 19 are mounted on the front surface side of the circuit
board 15 disposed on the front surface side.
Furthermore, the cover 5 is provided with the sound hole 13 so as to correspond to the sound
collection hole of the microphone unit 17, and the communication surface 3a is provided so that
the sound hole 13 and the radio wave transmission antenna 19 are formed on the same surface
side. It is done.
[0022]
The cover 5 is a cover member having a concaved cross section formed of a resin that transmits
an electromagnetic wave, and the communication surface 3a is formed on the surface thereof.
The radio wave transmission antenna 19 and the microphone unit 17 mounted on the circuit
board 15 are disposed on the inner surface side of the communication surface 3a.
[0023]
The lower case 7 is a cover member formed of a resin having a shielding member (not shown)
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made of metal plating or a metal material so as to shield an electromagnetic wave, and various
electronic components mounted on the circuit board 15 and the circuit board 15 To prevent the
entry of noise into the
[0024]
The support portion 9 is a support member for rotatably supporting the main body 3, and
supports the main body 3 via the rotational coupling portion 25.
In addition, the support unit 9 is provided with a USB terminal 11 for connecting to an external
device such as a PC 31 described later, and power is supplied from the PC 31 to the main body 3
through the USB terminal 11 or the PC 31 and the main body 3 It is a route of signal
transmission and reception.
[0025]
The USB terminal 11 is a terminal member connecting the microphone device 1 and an external
device, and is a male terminal of USB (Universal Serial Bus) standard.
The USB terminal 11 can supply power and transmit / receive signals from the external device to
the microphone device 1.
[0026]
The sound hole 13 is a hole provided on the upper surface of the microphone unit 17 of the
cover 5 and having a diameter of about 1 mm.
The sound hole 13 and the sound collecting hole of the microphone unit 17 may be connected by
a cylindrical gasket or the like so as to prevent the sound from entering in the lateral direction.
[0027]
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The circuit board 15 is a mounting board on which electronic components such as the
microphone unit 17 and the radio wave transmission antenna 19 are mounted, and on the
surface thereof, the microphone unit 17, the radio wave transmission antenna 19, the acoustic
data input / output circuit 21, and signals The conversion transmission circuit 23 is mounted.
Further, a circuit pattern (not shown) is formed on the circuit board 15, and a signal line and a
power line from the USB terminal 11 are formed. Furthermore, signal lines for connecting the
microphone unit 17, the acoustic data input / output circuit 21, the signal conversion
transmission circuit 23, the radio wave transmission antenna 19 and the like are also formed.
[0028]
The microphone unit 17 is a microphone having directivity on the front surface (sound hole
side), and is for collecting a voice of the user and the like. The microphone unit 17 is connected
and fixed to the circuit board 15 by solder or the like. By installing the microphone unit 17 with
such front directivity, only sound in the front direction (vertical direction) of the sound hole 13
can be collected.
[0029]
The radio wave transmission antenna 19 is a transmission chip for transmitting a signal such as
voice by radio wave to the wireless earphone 33 which is an external communication device
worn by the user in the ear. The radio wave transmission antenna 19 is installed on the circuit
board 15, and the upper surface thereof is covered by a cover 5 which transmits radio waves.
Further, the radio wave transmission antenna 19 is installed on the communication surface 3 a
side where the sound hole 13 is formed. The radio wave transmission antenna 19 transmits radio
waves using, for example, a highly compact patch antenna with high directivity, so that radio
wave interference with other electronic devices, other wireless earphones 33 not intended for
transmission, etc. It is possible to prevent an erroneous transmission to an external
communication device used by other than the user.
[0030]
The acoustic data input / output circuit 21 is a circuit including an A-D conversion circuit that
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converts an audio signal from the microphone unit 17 from an analog signal to a digital signal. In
addition, it is a circuit including a DA conversion circuit that converts audio data from the PC 31
from a digital signal to an analog signal. The digital signal output from the sound data input /
output circuit 21 is output to the signal conversion transmission circuit 23. The sound data input
/ output circuit 21 can also output an audio signal from the microphone unit 17 to the PC 31.
[0031]
The signal conversion transmission circuit 23 is a conversion circuit for wireless communication
of the signal output from the sound data input / output circuit 21. The signal conversion
transmission circuit 23 drives the radio wave transmission antenna 19 based on the signal
output from the sound data input / output circuit 21 to perform wireless communication by
radio waves.
[0032]
FIG. 4 is a perspective view showing a state in which the main body 3 is moved. As shown in FIG.
4, the rotational coupling portion 25 is a hinge portion that supports the main body 3 in a
rotatable manner with respect to the support portion 9, and the rotational axis of the support
portion 9 is eccentric at the front face 1 a. I support it. As shown in FIG. 4 from the state of FIG. 1
in which the upper surface of the main body 3 and the upper surface of the support portion 9 are
substantially planar, the rotary joint 25 inclines the communication surface 3 a to the front as
shown in FIG. Then, the upper surface of the support portion 9 and the upper surface (the
communication surface 3a) of the main body 3 can be further moved to a position orthogonal to
each other.
[0033]
FIG. 5 is a perspective view showing a wireless communication system 100 provided with a
microphone device 1 according to an embodiment of the present invention. The PC 31 is a
notebook personal computer provided with a USB connector 35 as shown in FIG. 5, and is
provided with a liquid crystal display, a keyboard and a network terminal (not shown). The PC 31
can supply power to the microphone device 1 and input / output data. The PC 31 may be a
control device equipped with a USB connector such as a normal desktop computer.
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[0034]
The wireless earphone 33 is an external communication device equipped with a wireless
communication function that the user wears and uses on the ear, and includes a receiver 337.
Further, as shown in FIG. 3, the wireless earphone 33 is provided with a radio wave reception
antenna 331, a battery 333, a signal conversion sound output circuit 335, and the like.
Furthermore, the wireless earphone 33 is provided with a cushion portion for improving the ease
of wearing when worn on the ear of the user and for sealing the receiver 337 and the user's
outer ear.
[0035]
The radio wave reception antenna 331 is provided at the distal end portion 33 a of the wireless
earphone 33, and is a reception unit for receiving a transmission signal from the radio wave
transmission antenna 19. The surface of the radio wave reception antenna 331 is covered by a
cover that transmits radio waves as in the microphone device 1. Further, since the radio wave
receiving antenna 331 is provided toward the tip end portion 33 a of the wireless earphone 33,
that is, toward the mouth of the user, the microphone device 1 can be used, for example, when
the user speaks into the microphone device 1. When used, communication with the microphone
device 1 is also possible.
[0036]
The battery 333 is a button battery for driving the signal conversion sound output circuit 335
and the receiver 337. In addition, the transmission unit of the microphone device 1 may be
changed to an infrared form, and the radio wave receiving antenna 331 may be changed to an
infrared receiving antenna, and then the battery 333 may be charged by the infrared receiving
antenna.
[0037]
The signal conversion sound output circuit 335 is a circuit that converts a signal received by the
radio wave reception antenna 331 into a signal for driving the receiver 337.
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[0038]
The receiver 337 is a small-sized electrodynamic receiver unit, which is driven by the signal
conversion sound output circuit 335 to transmit a sound to the user.
As the receiver 337, it is also possible to use a BA (Balanced Armature) receiver.
[0039]
As described above, according to the microphone device 1 and the wireless communication
system 100 according to the present embodiment, the microphone device 1 includes the main
body 3 via the rotational coupling portion 25 for rotatably attaching the support portion 9 and
the main body 3. It is characterized in that it has a communication surface 3a in which the sound
hole 13 is formed and the radio wave transmission antenna 19 is included. As a result, simply by
pointing the sound hole 13 in the direction of the user, the communication surface 3a can be
simultaneously directed to the user, and the user can adjust the communication direction
unknowingly. In addition, since the weak radio waves can be used when the microphone device 1
and the wireless earphone 33 perform wireless communication by directing the communication
direction to the direction of the wireless earphone 33, consumption of the wireless earphone 33
Power can be reduced, and interference with other communication devices can be prevented.
[0040]
Further, by forming the communication surface 3a of the main body 3 with a radio wave
transmission resin, the radio wave transmission antenna 19 can be covered in a state capable of
radio wave transmission, and design can be improved after having functionality. Become.
[0041]
Furthermore, by providing the USB terminal 11 as a connector portion, it becomes possible to
cope with various external devices.
[0042]
Further, as shown in the above configuration, a wireless communication system comprising a
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microphone device by the wireless earphone 33 having at least the earphone and the wireless
communication means, the PC 31 by the electronic device having the USB connector 35 By
configuring, an inexpensive system that can use an existing PC can be configured.
Furthermore, by connecting the microphone device 1 to the PC 31 and using the wireless
earphone 33 on the user side, the power consumption of the wireless earphone 33 on the user
side can be reduced, and the battery 333 can be miniaturized, It is possible to construct the
wireless communication system 100 which can be configured to be small and lightweight.
[0043]
Next, another embodiment of the present invention will be described.
[0044]
FIG. 6 is a perspective view showing a microphone device 101 according to another embodiment
of the present invention.
In addition, about the structure similar to above-mentioned FIG. 1-FIG. 5, it shows using the same
code | symbol, and it omits about detailed description.
[0045]
As shown in FIG. 6, the microphone device 101 has a main body 3, a cover 5 attached to the
upper surface side of the main body 3, a lower case 7 attached to the lower surface side of the
main body 3, and the main body 3 rotatably. It comprises a supporting portion 9 to support and
a USB terminal 11 provided on the supporting portion 9 for connecting to an external device
such as a PC.
Further, a sound hole 13 is provided on the surface of the cover 5. Further, the microphone
device 101 further includes a rotational coupling portion 25 for rotating the main body 3 in the
direction of the front surface 1a, and a second rotational coupling portion 27 for rotating the
distal end 1b on which the radio wave transmitting antenna 19 of the main body 3 is mounted.
Have. In the microphone device 101, both the rotary coupling portion 25 and the second rotary
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coupling portion 27 are rotated by about 150 degrees in both directions from a state in which
the support portion 9 and the main body 3 are substantially planar as shown in FIG. Is possible.
[0046]
According to the microphone device 101 according to another embodiment of the present
invention, the main body 3 can be oriented at various angles, whereby the communication
surface 3a can also be oriented at various angles. Therefore, it becomes possible to set the sound
hole 13 and the radio wave transmission antenna 19 simultaneously to the direction of various
users.
[0047]
In the present invention, the radio wave communication means by the radio wave transmission
antenna 19 and the radio wave reception antenna 331 is used as the radio communication
means, but the invention is not limited to this, and the radio communication means may be
formed by infrared rays. When an infrared transmitting unit is formed instead of the radio wave
transmitting antenna 19, a cover member made of a resin such as acrylic that transmits infrared
may be used as the cover 5. Further, by configuring the wireless communication means by the
infrared communication means, it is possible to suppress the power consumption of the wireless
earphone 33, and it is also possible to prevent interference with other communication devices.
[0048]
Furthermore, although the USB terminal 11 is used as the connector portion, the present
invention is not limited to this, and it may be a general purpose terminal that can supply power
such as an IEEE 1394 terminal.
[0049]
1 is a perspective view of the microphone device 1 according to an embodiment of the present
invention. FIG. 1 is a perspective view showing the mounting on the circuit board 15 with the
cover 5 removed. 3 is a perspective view of the wireless communication system 100 including
the microphone device 1 according to an embodiment of the present invention. FIG. 6 is a
perspective view of a microphone device 101 according to another embodiment of the present
invention.
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Explanation of sign
[0050]
Reference Signs List 1 microphone device 1a front surface 1b front end 3 main body 3a
communication surface 5 cover 7 lower case 9 support 11 USB terminal 13 sound hole 15 circuit
board 17 microphone unit 19 radio wave transmission antenna 21 acoustic data input / output
circuit 23 signal conversion transmission circuit 25 rotational coupling Part 27 Second rotational
coupling part 31 PC 33 Wireless earphone 33a Tip part 35 USB connector 100 Wireless
communication system 101 Microphone device 331 Radio wave reception antenna 333 Battery
335 Signal conversion sound output circuit 337 Receiver
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