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JP2010283873

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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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2010283873
[PROBLEMS] To provide a novel device equipped with a microphone and an ear cup module. In
particular, a boom microphone includes a microphone connector, and an ear cup module
includes an ear cup connector jack for connecting to headphones and a boom lead-in for
receiving the microphone connector, (a) a boom microphone and headphones (b And d) a control
module for performing voice signal communication wirelessly with the mobile phone. [Selected
figure] Figure 2
Microphone technology
[0001]
This description relates to boom microphone technology.
[0002]
Generally, in one aspect, the microphone comprises a microphone connector, and the ear cup
module comprises an ear cup connector jack for connecting to headphones and a boom lead-in
for receiving the microphone connector, (a) a boom microphone and headphones b) A control
module for performing voice signal communication wirelessly with the mobile phone.
[0003]
The present invention provides a novel device equipped with a microphone and an ear cup
module.
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[0004]
Implementations may include one or more of the following features.
The microphone connector is non-axisymmetric.
A power connection exists to transfer power from the power source in the headphones to the
circuit powered by the ear cup connector jack.
The control module is adapted for sound signal equalization from the boom microphone. The
control module is adapted to determine if the boom microphone has been attached to the ear cup
module. The control module includes a connector adapted to transmit a signal from the audio
player to the headphones. The control module is adapted to automatically weaken the signal
from the audio player when an incoming call is received by the mobile phone. The control
module further comprises a wireless module for communicating with the mobile phone. The
wireless module is a Bluetooth module.
[0005]
In general, in one aspect, the headphones include a power source, the microphone can be
attached to the headphones, and the control circuit is not in the headphones and controls the use
of audio signals associated with the microphone and the headphones, There is a power
connection between the headphone power source and the control circuit.
[0006]
Implementations may include one or more of the following features.
The headphones have a noise cancellation circuit. The control circuit controls an audio signal
used for incoming calls transmitted wirelessly to or from the mobile telephone set. The power
connection includes the conductors of the cable. The power source is a battery. The microphone
includes a boom microphone. There is a connector between the microphone and the headphones.
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[0007]
In general, in one aspect, a signal is received from a microphone that is representative of the
voice of a user wearing active noise reduction headphones. The received electrical signal is
processed to form a generated signal representative of speech. The generated signal is
transmitted to the converter in the headphone and reproduced to the user. Signal processing
results in natural reproduction of the user's voice when the generated signal is reproduced to the
user.
[0008]
Implementations may include one or more of the following features. The microphone can be
attached to the headphones. Signal processing involves equalization. Signal processing includes
level setting. Signal processing is based on configuration information provided by the user.
[0009]
In general, in one aspect, the microphone signal is representative of the voice of the user wearing
the headphones, and the received signal is amplified by the voice transfer function traveling
along a path from the user's mouth to the user's ear The received signal is equalized according to
the reverse of the transfer function of the sound traveling along the path from the user's mouth
through the headphones to the user's ear.
[0010]
Generally, in one aspect, a shielded noise cancellation microphone is attachable to noise
cancellation headphones and removable from noise cancellation headphones.
[0011]
Implementations may include one or more of the following features.
There is a connector between the microphone and the headphones.
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The microphone includes a boom microphone.
[0012]
Generally, in one aspect, the microphone can be connected to noise canceling headphones, and
the headphones separated from the microphone can be connected to noise canceling headphones
and the microphone. The controller includes a wireless transceiver to transmit the microphone
and headphone signals to the mobile phone and to transmit the mobile phone signal to the
microphone and headphones.
[0013]
In general, in one aspect, the microphone is attachable to and removable from the headphones
and is adapted for current draw from a power source in the headphones. The circuit determines
the connection of the microphone to the headphone based on the detection of the current draw.
[0014]
Implementations may include one or more of the following features. The microphone contains a
noise canceling microphone. The power source includes a battery. The circuit includes a unit
separated from the headphones and the microphone. The circuit disconnects the call when it
determines that the microphone has been removed.
[0015]
Generally, in one aspect, the microphone is attachable to and removable from the headphones,
and the circuit transmits the signals of the microphone and the headphones to the mobile phone
set and transmits the signals from the mobile phone set to the microphone and the headphones
And disconnect a call in progress on your mobile phone set if the microphone is removed during
a call
[0016]
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Implementations may include one or more of the following features.
The circuit includes a wireless communication circuit for transmitting a signal. The circuit
includes a unit separate from the microphone and the headphones.
[0017]
In general, in one aspect, the connector attaches the microphone to the headphone non-axially
and removes the microphone from the headphone, and the connector attaches the microphone to
the mouth and the microphone to the headphone after the microphone is attached to the
headphone It is configured to be the same orientation as it was previously attached to the.
[0018]
Implementations may include one or more of the following features.
The orientation of the microphone relative to the mouth of the person wearing the headphones
can be adjusted using a gooseneck. The microphone includes a boom microphone. The connector
and the microphone are connected non-axially symmetrically.
[0019]
Generally, in one aspect, the connector attaches the microphone to the headphone and removes
the microphone from the headphone, the connector having a non-axial cross-section.
[0020]
Generally, in one aspect, the circuit is connected to a mobile phone set to transmit audio signals
of the mobile phone, connected to a music source to transmit music audio signals, and connected
to a microphone to audio conversations A port for converting to a signal is provided, the circuit
detects an incoming call while the music audio signal is being played on the headphones and
converts the audio signal played by the headphones from the music audio signal to the telephone
audio signal It is configured to switch.
[0021]
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Implementations may include one or more of the following features.
The circuit is isolated from headphones, cell phone sets, music sources, headphones and
microphones.
The connection to the mobile phone set is wireless.
[0022]
In general, in one aspect, it detects when the microphone associated with the headphone no
longer provides an audio signal for one of the calls, and terminates the call in response to the
detection.
[0023]
Implementations may include one or more of the following features.
Detection includes the step of electrically detecting when the microphone is removed from the
headphones. The end of the call includes the step of sending an instruction to hang up from a
controller associated with the headphones.
[0024]
These and other features and ranges, as well as their connection, are described as equipment,
methods, systems, means of exerting functions, program products and other methods.
[0025]
Other advantages and features will be apparent from the following description and claims.
[0026]
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It is a figure showing the front of a microphone accessory.
FIG. 6 is a front and partial exploded view of the microphone accessory and the headphones.
Fig. 6 shows a perspective view of the ear cup module. Fig. 6 shows a perspective view of the ear
cup module. Fig. 3 shows a perspective view of the control module. The perspective view of the
dummy which wore headphones is shown. Fig. 2 shows a block diagram of a control module
circuit.
[0027]
As shown in Figures 1 and 6, such as Bose Quiet Comfort 3 headphones (TM), or other active
noise cancellation or non-noise cancellation headphones (including ear wraps, ear hook types or
in-ear types) A microphone accessory 10 for the set of headphones 12 provides a Bluetooth (or
other) wireless connection to a Bluetooth (or other) connectable mobile phone 15 (not shown) of
the headphones 12 and the microphone 14. (We also sometimes refer to a single headphone
using the plural headphones. The cable (not shown) normally provided for headphones is
replaced by a cable 16 which comprises a removable boom microphone assembly 18 at one end
20 and a control module 24 at the other end 22. The control module 24 controls the use of the
microphone, the wireless connection of the headphones with the mobile phone and the
connection with other devices, in particular the Bluetooth communication module 27 (FIG. 7) and
the MP3 player, the CD player or the radio It houses an input jack 26 for receiving stereo music
(or other) audio signals from such music (or other audio) sources 28 (optionally scaled).
[0028]
The accessory 10 provides hands-free operation and transmits audio signals between the mobile
phone and the head font using a Bluetooth-enabled mobile phone, which is noisy as previously
not possible to talk by phone Is also performed in the considered environment.
[0029]
The circuitry within the control module includes an automatic audio source switch 30 (FIG. 7)
that allows the user to recognize and accept mobile phone calls without removing the
headphones.
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For example, if a microphone is being used during a call, a side tone will be provided, a natural
voice even in environments where the ambient noise is high enough to give the user a more
natural conversation experience while wearing headphones It makes it possible to listen to your
own conversation.
[0030]
The accessory is powered by a headphone battery (not shown) via one or more power lines 47,
such as a portion of cable 16, for example, to carry another battery charger for the accessory.
Eliminating the need for The accessory 10 is normally powered whenever the headphones are
switched on and the provided accessories are plugged into the headphones. The control module's
Bluetooth on / off switch 32 controls the power supplied to the Bluetooth module. The Bluetooth
module is switched off, for example, during the flight of the aircraft, but allows stereo music to be
transmitted from the music source to the headphones via the control module. The microphone
14 is a boom microphone in some examples, but may be stored in the boom holder of the
headphone carry case.
[0031]
The microphone 14 is a commercial noise canceling microphone and is available from vendors
such as Knowles Acoustics of Itasca, IL. The length of the cable 16 (shown as scale free in FIG. 1)
is about 20 cm in some embodiments. The plastic housing 34 supporting the microphone may
allow the scattered electrical signals to interfere with the electrical signals representing the
sound received by the microphone. The microphone may be shielded by inserting a ground
conductor (not shown) between the plastic housing and the microphone. The ground conductor
may be disposed in the plastic housing or the microphone, and may be grounded by the ground
lead from the microphone.
[0032]
The microphone 14 (hidden in FIG. 1) is held at one end 36 of the microphone boom 38. The
other end 40 of the boom is connected to a microphone connector 42 (also sometimes referred
to as a boom connector). The microphone connector 42 is located within the lead-in receptacle
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44 of the ear cup module 46. In order to attach the boom microphone to the ear cup module 46
or remove the boom microphone from the ear cup module 46, the connector 42 can be guided
into the lead-in receptacle 44 (FIG. 2) of the ear cup module 46. The boom microphone connector
is contoured to match the contour of the inner wall of the lead-in receptacle of the ear cup
module (as shown in FIG. 3), the boom microphone is attached to the ear cup module 46 or from
the ear cup module 46 Maintains the orientation and position of the microphone relative to the
user's mouth when removed.
[0033]
As shown in FIG. 3, the cross-sectional profile of the microphone connector and the lead-in
receptacle is non-axisymmetric about an axis along the length of the microphone boom and the
connector conforms to the lead-in receptacle in only one orientation of the boom It can be done.
The unique orientation may also be implemented by a slot-key arrangement, where the key fits
within the slot to prevent the key from rotating beyond the slot boundaries. The slot may be
located in the boom connector or lead-in receptacle.
[0034]
The gooseneck 50 between the boom 38 and the boom connector allows the user to adjust the
position and orientation of the noise canceling microphone with respect to his or her mouth, and
the user inserts the removable boom microphone from the ear cup module It is possible to
maintain position when doing or removing. The keyed microphone connector allows the user to
remove the boom microphone after adjusting it and then reattach the boom microphone at the
same or nearly the same microphone position and orientation upon reattachment.
[0035]
An on / off switch 32, which controls the power supply to the Bluetooth module within the
control module, is on the opposite side of the module's volume control 60, 61, which is shown in
FIG. Volume control and send / terminate control 64 perform different functions depending on
the operating mode of the module. The mode is indicated by the indicator light 66.
[0036]
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One mode of operation is the combination mode and the accessory is combined with the
Bluetooth cell phone. When the control module is switched on, the user enters the combination
mode by pressing the send / end button simultaneously with the VOL + button of the control
module. In combination mode, the indicator light is always on. Once in the combination mode,
the user enters a predetermined code into his mobile phone. For example, the user inputs 0000
as the combination mode.
[0037]
Once the combination occurs, the Bluetooth link 29 between the control module and the mobile
phone transmits audio and control signals back and forth between the mobile phone and the
control module. After the mobile phone is assembled into the accessory, the control module
enters into the standby mode and is indicated by a blink once every three seconds. In standby
mode, a short press on the send / end button activates the voice dial mode of the mobile phone
(if equipped with such a feature), allowing the user to dial using a voice command through the
microphone It is. (Even in such a case, for example, the user may dial using the keypad of the
mobile phone. Short pressing the) key is, for example, to keep pressing for 2 seconds or less.
Long pressing of the send / end button redials the last called phone number. If the mobile phone
is equipped with a voice dialing feature, the user can enter voice dialing mode and release the
voice dialing by the user pressing the send / end button briefly. The user can also end the last
dialed number redial mode by briefly pressing the send / end button.
[0038]
When the control module is in standby mode and an incoming call is received, the occurrence of
the incoming call is reported by the mobile phone to the control module and the control module
enters a ringing mode. When an incoming call occurs, if the user is listening to a music player
connected via the music player jack, the control module alerts the user that there is an incoming
call and allows the user to answer the incoming call . The control module alerts the user to an
alert by alerting the music, and the ringtone can be, for example, by automatically muting or
pausing the music player, by lowering the volume of the music, or by music to one ear. While you
can hear it, the other ear can hear it by ringing. The user may answer the call by briefly pressing
the send / end button or pressing the VOL + control button. The user may reject the call by long
pressing the send / end button or by pressing the VOL-control button. The audio program is
automatically muted or resumed by the control module when the user rejects or terminates the
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call.
[0039]
When the user is on a telephone call, the control module enters an active call mode, and the
indicator light is indicated by repeating the 2 second on and 5 second off cycle. In the active call
mode, the user may end the call by briefly pressing the send / end control button or transfer the
voice by long pressing the send / end button. During a call, the user can increase or decrease the
volume by pressing the VOL + or VOL- control button, respectively.
[0040]
During a call, the user's voice is played as a side tone through the headphones. When wearing
typical headphones, especially noise-canceling headphones, the transfer function between the
user's mouth and ear is alerted, and the user is only a modified version of the user's voice that
sounds unnatural to the user I can hear you. In some embodiments described herein, the user's
voice is played as a side tone through the headphones, and the user naturally hears his voice as if
he were not wearing the headphones. Before being played back in the headphones, the side tones
are equalized (by the signal processing circuit 39 in the control module (see FIG. 7)), leveled, or
both with side tones close to the user's natural voice The voice is formed and the user does not
perceive any unforeseen differences as compared to the voice he or she is familiar with when not
wearing the headphones.
[0041]
Equalization and level adjustment depend on both the microphone and the head font. In general,
the equalizer can have a response (in the frequency domain) that is the reverse of the perfect
transfer function (via the electronic system including the headset) from mouth to ear (via the air)
It is augmented by the measured response (approximated across multiple users) from mouth to
ear.
[0042]
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A variety of equalization and level settings may be attempted with different users, for a particular
microphone and headphone combination, and settings suitable for a large number of different
users may be selected. The preferred setting may be implemented as an initialisation of the
unadjusted equalization / level sidetone module in the control module or the adjustable
equalization / level sidetone module in the control module. For example, the untuned
equalization / level sidetone module may be implemented using fixed gain and amplification over
a wide area of the human voice range to form more natural sidetone sound. If different
microphones are used with the headphones, the side tone module may increase or decrease high
frequency amplification to compensate for the different microphones.
[0043]
The side tones may reproduce the levels, variability, frequency or other attenuation
characteristics provided by the headset. Among other things, the low frequency response is
characteristic of noise canceling microphones that are typical when the microphone is placed
close to the mouth that is the speaker, for bass amplification and for equalization configured for
music reproduction It is possible to be adapted to the correction.
[0044]
Providing a uniform side tone as described may also be useful in non-call contexts, including
making regular conversations with another person. The user may end the call by pressing the
send / end button or by removing the boom microphone from the ear cup module. The control
module monitors the signal from the boom microphone and if the signal falls below a
predetermined threshold, the control module assumes that the boom microphone has been
removed. The control module may detect removal of the boom microphone by monitoring the
current draw (or change in voltage across the bias register) supplying the microphone (by the
microphone detection circuit 70 (see FIG. 7) in the control module) . If the control module detects
the removal of the microphone, the control module interrupts the call by sending a break
indication to the mobile phone and puts the Bluetooth module in standby mode. Conversely,
when a microphone is attached and an incoming call is received, the control module may
automatically answer the incoming call, allowing the user to initiate a call.
[0045]
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In one embodiment, the user may easily remove the microphone during a call and listen to the
call. This "listen only" feature may be implemented by a separate switch or control of the control
module. This feature may be useful when the user is in a noisy environment and only needs to
listen to calls.
[0046]
Other implementations are within the scope of the claims.
[0047]
For example, certain embodiments include arranging the circuitry of some or all control modules
within the ear cup module to provide control of the ear cup module, boom microphone or other
remote control.
One embodiment includes placing the control module circuitry in an ear cup of a headphone.
[0048]
The circuitry used to implement the features described above is straightforward. For example,
the Bluetooth module is a standard Bluetooth module that can be purchased from various
vendors, such as Samsung Micro Electronics Corporation. The Bluetooth protocol is used as a
wireless protocol, and other short range protocols may be used.
[0049]
Additional information on the electronic interface of the head mount device and the headset
audio accessory can be found in US patent application Ser. No. 11 / 191,873 filed Jul. 28, 2005
filed Mar. 27, 2006 No. 11 / 390,718, which are incorporated herein by reference in their
entirety.
[0050]
DESCRIPTION OF SYMBOLS 10 ... Microphone accessory 12 ... Headphones 14 ... Microphone 15
... Mobile telephone 16 ... Cable 18 ... Boom microphone assembly 24 ... Control module 25 ...
Circuit 26 ... Input Jack 27 ... Bluetooth communication module 28 ... Music source 30 ...
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Automatic audio source switch 32 ... Bluetooth on / off switch 34 ... Plastic housing 38 ...
Microphone boom 42 ... Microphone (boom ) Connector 44 иии Lead-in receptacle 46 иии Ear cup
module 50 иии Goose neck
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