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JP2004056431

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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 JP2004056431
An object of the present invention is to realize, in a portable electronic device having an imaging
function, a portable electronic device which switches the directivity of a voice input means in
accordance with a photographing mode. A portable electronic device includes a voice input unit
including a microphone for inputting voice information and an imaging unit including an imaging
unit for inputting image information in designing a portable electronic device. The apparatus is
provided with directivity switching means capable of switching the directivity of the voice input
means in accordance with the imaging mode of the imaging means. [Selected figure] Figure 1
Portable electronic devices
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
portable electronic device equipped with voice input means having a microphone for inputting
voice information, and imaging means having an imaging unit for inputting image information. .
[0002] Various types of devices equipped with voice input means, such as mobile phones, PHSs,
video cameras, IC recorders, etc., are required to preferentially capture the required voice
according to the application. It is configured with a number of microphones. According to the
microphone's “polar pattern,” all the sound collected at the place where it is placed reaches
the diaphragm and becomes an electrical output, regardless of the orientation or angle of the
microphone body (diaphragm) There are non-directionality, uni-directionality that has the
property of easily grasping a specific direction, bi-directionality that strongly captures the sound
source in two directions before and after, etc. It is decided from various factors. In an apparatus
equipped with voice input means, appropriate types and numbers of microphones are used alone
or in combination, so as to be able to optimally capture the necessary voice suited to the
application of the apparatus. In the prior art, switching of the directivity of the microphone has
been performed for noise reduction. For example, as shown in FIG. 7, one or more noise input
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holes can be closed and opened in "Japanese Patent Application Laid-Open No. 6-37877" and
"noise-free telephones". It is disclosed to provide a sliding or opening door, and the purpose is to
have the same performance as a normal microphone when using a telephone in the absence of
noise, and to be able to have an anti-noise function under noise It is to provide a telephone. In
recent years, in mobile phones, PHS, etc., devices equipped with imaging means have been
commercialized, and in these devices, ordinary voice input means (call means) In the case where
is used, the voice of the user assumed to be the speaker is preferentially captured. When using
an imaging means, it is desirable to be configured to strongly capture not only the voice of the
user but also the voice of a subject (a person, an animal or the like photographed by the imaging
means). In addition, even in an IC recorder or the like, not only a mobile phone or PHS, etc., a
shooting means can be provided to appropriately switch the directivity of the voice input means,
and the necessary voice can be appropriately captured according to the shooting mode of the
imaging means. It is desirable that the portable electronic device has high added value by
providing voice input means capable of switching the directivity of the microphone in accordance
with the application of the device.
The present invention has been made in view of the above problems, and an object thereof is to
provide a portable type including means for easily and appropriately switching the directivity of
the voice input means in accordance with the imaging mode by the imaging means. The point is
to provide an electronic device. A first feature of the portable electronic device according to the
present invention for achieving the object is a voice as described in claim 1 of the claims. A
portable electronic device comprising: voice input means having a microphone for inputting
information; and an imaging means having an imaging unit for inputting image information, the
voice corresponding to a photographing mode by the imaging means The point is that directivity
switching means capable of switching the directivity of the input means is provided. That is,
according to the above first feature configuration of the portable electronic device according to
the present invention, the directivity of the voice input is switched in accordance with the
imaging mode by the imaging means. Devices equipped with an imaging function, such as mobile
phones, PHSs, video cameras and IC recorders, have various imaging modes by imaging
functions, at least an imaging operation mode and an imaging stop mode, and depending on the
function of the device Some also have features such as a background shooting mode. In addition,
devices equipped with these imaging functions are provided with various types and numbers of
microphones in order to capture voices, and are configured to optimally capture necessary voices
by a combination thereof. Here, since the sound required for capturing by the voice input means
is generally considered to be different for each shooting mode, a configuration for switching the
directivity of the voice input means according to the shooting mode It is desirable to be As a
method of switching the directivity of the voice input means, specifically, for example, the voice
of the user (photographer, talker) in the photographing stop mode, ie, in the case of the call
mode, in the mobile phone. It is conceivable to switch to unidirectionality that is strong in noise
in order to capture the priority, and to switch to bi-directionality or non-directionality in order to
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capture the voice of the subject in the shooting operation mode. In addition, the shooting mode is
switched to bi-directional to capture the voice of the photographer and the subject during
shooting operation mode, and is switched to non-directional during shooting stop mode, etc. It is
desirable to do. Therefore, by providing directivity switching means for switching the directivity
in accordance with the shooting mode to the portable electronic device having the voice input
means and the imaging function, the voice required by the user can be appropriately set. As will
be understood, it is possible to switch the directivity of the voice input means, and to enhance the
value of the portable electronic device according to the present invention.
[0011] In the second characteristic configuration, as described in claim 2 of the section of the
claims, in addition to the first characteristic configuration, the directivity switching unit is
interlocked with the imaging mode switching by the imaging unit. To switch the directivity of the
voice input means. That is, according to the second characteristic configuration, the directivity of
the voice input means is automatically switched according to the photographing mode. The
directivity switching means may be configured to switch the directivity of the voice input means
by manual operation, but in particular, in an apparatus having an imaging function as an
incidental function, such as a cellular phone or PHS, a shooting mode (shooting It is time
consuming and cumbersome for the user to manually change the operation mode and the
shooting stop mode), and since the user must be consciously carrying it out, forgetting to switch
the shooting mode, etc. It is possible that it can not be implemented properly. Therefore, by
making the directivity switching means automatically switch the directivity of the voice input
means, etc., it is possible to appropriately switch the directivity of the voice input means without
the user being particularly aware. Become. According to the third characteristic structure, as
described in claim 3 of the column of the claims, in addition to the first characteristic structure to
the second characteristic structure, the directivity switching means comprises the imaging means
It switches to bi-directionality in the photographing operation mode according to the above, and
switches to unidirectionality or non-directionality in the photographing stop mode by the
imaging means. That is, according to the third feature configuration, switching to bi-directionality
in the imaging operation mode and switching to unidirectionality or non-directionality in the
imaging stop mode is performed. In the photographing operation mode of the imaging means, it
is desirable to switch to bi-directionality in which the sound sources in the two front and back
directions are strongly captured in order to allow not only the subject but also the voice of the
photographer to be taken in. In the shooting stop mode, it may be desirable to switch to
unidirectionality or noiselessness that is easy to catch a specific direction so as to capture the
voice of the photographer strongly. Therefore, by switching to bi-directionality in the
photographing operation mode and switching to unidirectionality or non-directionality in the
photographing stop mode, the voice of the photographer or the subject according to the
photographing mode of the image pickup means is optimized. A portable electronic device that
can be incorporated can be realized. According to a fourth aspect of the present invention, in
addition to the above first aspect to the second aspect, the directivity switching means comprises
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the imaging means, as described in claim 4 of the section of the claims. It switches to bidirectionality or non-directionality at the time of the photographing operation mode by the
above, and switches to unidirectionality at the time of the photographing stop mode by the
imaging means.
That is, according to the fourth characteristic configuration, switching to bi-directionality or nondirectionality in the imaging operation mode is switched to unidirectionality in the imaging stop
mode. As in the third feature configuration, in the shooting stop mode, it may be desirable to
switch to unidirectionality in which a specific direction can be easily captured so as to capture
the voice of the photographer strongly. In order to enable not only the subject but also the
photographer's voice to be taken in when the imaging operation mode of the imaging means is
performed, it is desirable to switch to bi-directionality in which the sound sources in the two
front and back directions are strongly captured. Furthermore, the configuration may be such that
it switches to non-directionality that captures the sound gathered at the place where the
microphone is placed, regardless of the orientation or angle of the microphone body. Therefore,
by switching to bi-directionality in the photographing operation mode and switching to
unidirectionality or non-directionality in the photographing stop mode, the voice of the
photographer or the subject according to the photographing mode of the image pickup means is
optimized. A portable electronic device that can be incorporated can be realized. According to a
fifth aspect of the present invention, in addition to the first aspect to the second aspect, the
directivity switching means comprises the imaging means, as recited in claim 5 of the claims. It
switches to bi-directionality in the person photographing mode according to the above, and
switches to unidirectionality or non-directionality in the background photographing mode by the
imaging means. That is, according to the fifth feature configuration, switching to bi-directionality
in the person photographing mode and switching to unidirectionality or non-directionality in the
background photographing mode is performed. The portable electronic device may be configured
to be able to specify a person shooting mode, a background shooting mode, and the like as well
as the shooting operation mode and the shooting stop mode as the shooting mode. It is necessary
to switch to bi-directionality in order to capture not only the voice of the subject but also the
voice of the photographer in the person shooting mode, and to capture the voice of the subject
particularly in the background shooting mode because the subject is not a person. Since it is not,
it can be said that it is desirable to adopt a configuration to switch to unidirectionality or
nondirectionality that can strongly capture the photographer's voice strongly against noise.
Therefore, by switching to bi-directionality in the person photographing mode and to
unidirectionality or non-directionality in the background photographing mode, the directivity is
appropriately switched according to each photographing operation mode, A portable electronic
device for capturing voice can be realized. According to the sixth aspect of the present invention,
in addition to the above first aspect to the fifth aspect, as described in claim 6 of the column of
the claims, the voice input unit The movable member mounted on the posture changeable is
provided, and the directivity switching means switches the directivity based on the posture of the
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movable member with respect to the apparatus main body.
That is, according to the sixth aspect, the directivity is switched based on the posture of the
movable member provided with the voice input means with respect to the device main body.
Here, devices such as mobile phones, PHSs, video cameras, etc. are configured to switch the
shooting mode based on the posture of the movable member with respect to the apparatus main
body, and to switch the shooting mode (switch operation for each shooting mode) And the like.
Specifically, in the video camera, digital camera, etc., switching of the operation mode and change
of the attitude of the movable member to the device body are carried out by the user's operation
behavior to the switch provided corresponding to each photographing mode. In the flip-type or
foldable mobile phone or PHS, the photographing mode is switched to the photographing
operation mode or the photographing stop mode by the opening / closing operation of the device
body. Since there are many devices in which the operation mode and the attitude of the movable
member with respect to the device body are interlocked with each other and switched, the
directivity of the voice input means is switched according to the shooting mode. It can be said
that it is desirable to switch the directivity based on the attitude of the movable member with
respect to the device body. Therefore, in the voice input means, by switching the directivity based
on the posture of the movable member with respect to the apparatus main body, it is possible to
appropriately switch the imaging mode and the directivity in one switching operation. As a result,
the labor of the user can be reduced and the operation of the apparatus can be facilitated. In an
apparatus having three or more types of shooting modes (shooting operation mode and shooting
stop mode, person shooting mode, background shooting mode, etc.), stages are provided for the
opening and closing postures to cope with each shooting mode. A configuration is conceivable in
which a plurality of types of directivity are switched for each opening and closing posture. With
such a configuration, even in an apparatus provided with a plurality of imaging modes, it is
possible to save time and effort of the user and to facilitate the operation of the apparatus.
According to the seventh characterizing feature of the present invention, in addition to the sixth
characterizing feature as described in claim 7 in the section of the claims, the imaging means is
provided on the movable member, and the device of the movable member The point is that the
shooting mode is switched based on the posture with respect to the main body. That is, according
to the seventh aspect, the imaging mode is switched based on the posture of the movable
member provided with the voice input means and the imaging means with respect to the
apparatus main body. Since the directivity of the voice input unit is switched by the switchable
directivity switching unit corresponding to the shooting mode, shooting is performed by one
switching operation by switching the shooting mode based on the posture of the device body. It
becomes possible to switch between the mode and the directivity appropriately, and it is possible
to save the labor of the user and to facilitate the operation of the apparatus.
According to an eighth characterizing feature of the present invention, in addition to the sixth
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characterizing feature to the seventh characterizing feature described in claim 8 of the section of
the claim, the voice input means is a bi-directional microphone. The directivity switching means
is provided with an acoustic resistance material that attenuates or shields an input sound to one
of the sound holes based on the posture of the movable member with respect to the apparatus
main body. That is, according to the eighth characteristic configuration, in order to switch the
directivity of the voice input means, an acoustic resistance material is used. For example, in a
bidirectional microphone, when the sound input to one of the sound holes is attenuated by the
acoustic resistance material, the degree of resistance of the acoustic resistance material makes it
possible to switch to unidirectionality, completely And switch to no directivity. As a specific
example, in the case of a slide-type device including the voice input means in the movable
member and the acoustic resistance material in the device main body, the movable member is
provided in the movable member in a folded state in the device main body. The sound input
means, here, one of the sound holes in front of and behind the bi-directional microphone (the
surface in contact with the main body of the device and the opposite thereof) is sealed with an
acoustic resistance material. The microphone provided on the movable member is switched to
omnidirectional when the input sound to one of the sound holes is completely blocked, otherwise
it is switched to unidirectionality, and the sound is moved when the movable member is slid. The
hole is opened and switched to bi-directional. Also in the flip type device, when the movable
member is folded in the device main body, the input sound to one of the sound holes is
attenuated or shielded so that the directivity is doubled as in the slide type. It becomes possible
to switch between directivity and unidirectionality and omnidirectionality. Therefore, by using
the acoustic resistance material, it is possible to easily and easily realize a portable electronic
device capable of switching the directivity in accordance with the photographing mode. The first
feature of the portable communication device according to the present invention for achieving
this object is the first feature of the portable electronic device as described in claim 9 of the
section of the claims. To the point that the portable electronic device according to any one of the
eighth feature configurations is incorporated. That is, according to the first feature configuration
of the portable communication device according to the present invention, directivity switching is
performed to switch directivity to a portable communication device such as a cellular phone,
PHS, transceiver, etc. in accordance with a photographing mode. A portable electronic device
comprising the means. With such a configuration, it is possible to switch the directivity of the
voice input means so as to properly capture the voice required by the user.
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a portable electronic
device according to the present invention (hereinafter, suitably abbreviated as “the present
invention device”) will be described based on the drawings. The portable electronic device
according to the present invention is applied to, for example, a video camera, a digital camera, a
cellular phone, a PHS, an IC recorder, a transceiver, etc., and is an audio equipped with a
microphone for inputting audio information. An input unit and an imaging unit including an
imaging unit for inputting image information are provided, and a directivity switching unit
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capable of switching the directivity of the voice input unit corresponding to a photographing
mode by the imaging unit is further provided. There is. A first embodiment of a portable
electronic device according to the present invention will be described based on the portable
communication device 10 shown in FIG. The portable communication device 10 is applied to a
mobile phone (or PHS). The portable communication device 10 has a sliding structure including a
device body 5 and a movable member 4, and the movable member 4 is configured to be slidable
along the longitudinal axis direction of the device body 5. Here, as shown in FIG. 1A, with the
movable member 4 housed in the device main body 5 as the first posture, as shown in FIG. A
state where it is slid downward along the axial direction to a predetermined position is taken as a
second posture. In the present embodiment, the switching between the first posture and the
second posture is performed by the posture switching operation of the user assumed as the
speaker. Switching of the imaging mode is performed by switching between the first orientation
and the second orientation, and switching to the imaging stop mode is performed in the first
orientation, and switching to the imaging operation mode is performed in the second orientation.
Furthermore, in addition to the photographing operation mode and the photographing stop
mode, the photographing mode of the device of the present invention is configured to be able to
select a person photographing mode or a background photographing mode in the photographing
operation mode. The device body 5 of the portable communication device 10 in the present
embodiment is provided with switches relating to the call function of a mobile phone (or PHS) on
the surface (front surface) in contact with the movable member 4. , And has directivity switching
means inside. The movable member 4 is provided with an imaging means and a voice input
means, the imaging unit 1 of the imaging means is provided on the surface exposed in the second
posture of the movable member 4, and the sound hole of the microphone 2 of the voice input
means It is provided on the surface exposed in the second posture of the movable member 4 and
on the opposite side thereof. The imaging means is a CCD (Charge Coupled Diode) type mobile
camera generally provided in a mobile phone (or PHS), and comprises a CCD module (including a
lens) and a signal processing unit.
The imaging unit 1 of the imaging means is a CCD module. Although a CCD type mobile camera
is used in this embodiment, an object (at least one of still image and moving image) provided in a
mobile phone (or PHS) such as a CMOS type mobile camera or video camera is used. It may be
any device capable of photographing. As shown in FIG. 1, the imaging unit 1 is configured to be
exposed to the outside only in the second posture, and when the portable communication device
10 is switched to the second posture by the posture switching operation of the user, the
photographing operation is performed. It becomes the mode and it becomes the state which can
be photographed. The voice input means comprises a bidirectional microphone 2 and a signal
processing unit (eg, voice CODEC, AIU, etc.) for processing the signal from the microphone 2. As
shown in FIG. 1, the microphone 2 is provided inside the movable member 4 and sounds from
two sound holes respectively provided on the surface of the movable member 4 in contact with
the device main body 5 and in the immediate vicinity of the microphone 2 Are configured to
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capture The directivity switching means is composed of the acoustic resistance material 3. The
acoustic resistance member 3 is configured to seal the sound hole provided on the surface of the
movable member 4 in contact with the device main body 5 in the first posture of the portable
communication device 10, and input sound to the sound hole The directivity of the bi-directional
microphone 2 is switched to unidirectionality or nondirectionality by attenuation or shielding.
The acoustic resistance material 3 is made of a material such as compressed urethane, mesh,
non-woven fabric, or fluorine film, and the directivity is set according to the strength of the
acoustic resistance as described later. Here, FIG. 3 shows the directivity characteristic 6 of the
microphone 2 in an implementation configuration of the present embodiment. In the present
embodiment, the directivity is switched between uni-directionality and bi-directionality according
to the imaging mode. In the first posture (shooting stop mode), as shown in FIG. 3A, the sound
input to the sound hole on one side of the microphone 2 is attenuated by the acoustic resistance
material 3, and the microphone 2 becomes unidirectional. In the second posture (photographing
operation mode), as shown in FIG. 3B, the sound hole of the microphone 2 is opened, and the
microphone 2 becomes bi-directional, and it becomes possible to capture the voice of the subject
7. FIG. 4 shows the directivity characteristic 6 in another embodiment of the present invention. In
this embodiment, in addition to the above embodiment, the directivity of the microphone 2 is
switched to non-directional. Specifically, the slide amount of the movable member 4 is divided
into three stages so as to be adjustable, and the directivity is switched according to the slide
amount.
Here, a state in which the movable member 4 is slid downward along the longitudinal axis of the
device main body 5 to a predetermined position different from the second posture is taken as a
third posture. In the third posture, the photographing mode is the photographing operation
mode, and the voice input to the sound hole on the object 7 side of the microphone 2 is
attenuated by the movable member 4 and switched to nondirectional. In addition, as shown in
FIG. 4B, instead of completely blocking the voice input to the sound hole, a sound hole smaller
than the sound hole of the microphone 2 in the movable member 4 is in contact with the sound
hole of the microphone 2 The microphone 2 can be a low-cut microphone (it reduces noise by
cutting low frequencies) by being provided and configured to be slightly voice-inputted, and a
voice-input unit resistant to noise can be realized. In the present embodiment, the directivity
switching means is configured to switch to bi-directionality or non-directionality in the imaging
operation mode and to switch to unidirectionality in the imaging stop mode, but is limited thereto
It is not a thing. For example, it may be configured to have appropriate directivity characteristics
for each imaging mode, such as switching to bi-directionality in the imaging operation mode and
switching to unidirectionality or non-directionality in the imaging stop mode. In the mobile
phone (or PHS), it is desirable to place the first position in the shooting stop mode and the
second position in the shooting operation mode, since the shooting means is not a function used
constantly. . In the photographing operation mode, for example, when the person photographing
mode, the background photographing mode and the like are further settable, the slide amount of
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the movable member 4 is divided into several stages for adjustment. A plurality of modes may be
configured to switch between the photographing operation mode and the photographing stop
mode, the person photographing mode, the background photographing mode, and the like
according to the slide amount. In such a case, the input sound to the sound hole of the
microphone 2 is adjusted by changing the strength of the acoustic resistance for each slide
amount, and switching to the appropriate directivity for each shooting mode in the shooting
operation mode Is considered. Specifically, a configuration may be considered in which switching
to bi-directionality in the person photographing mode and switching to unidirectionality or nondirectionality in the background photographing mode are not limited to this. For each
photographing mode, It may be configured to have appropriate directivity characteristics. The
microphone 2 can switch bi-directionality to unidirectionality or nondirectionality by changing
the acoustic resistance material 3 and changing the strength of the acoustic resistance.
As for the bi-directional microphone 2 provided with the acoustic resistance material 3 in the
sound hole on one side, when the acoustic resistance material 3 is changed to change the
strength of the acoustic resistance, as shown in FIG. In other words, as the acoustic resistance
material 3 having a material with higher acoustic resistance is used, the bidirectionality
(directional characteristic 51, the state in which the sound hole is opened) is changed to
unidirectionality (directional characteristic 52), no directivity (directivity characteristic 52). The
directional characteristic 53 is switched to the state in which the sound input to the sound hole
on one side is completely blocked). Therefore, by selecting and configuring the appropriate
acoustic resistance material 3 of the strength of the acoustic resistance, it is possible to
appropriately set unidirectionality / nondirectionality. Here, as the acoustic resistance material 3,
compressed urethane, mesh, non-woven fabric, fluorine film, etc. can be considered, but any
other acoustic resistance material 3 that can appropriately attenuate or shield the sound input to
the sound hole can be used. You may use. A second embodiment of the portable electronic device
according to the present invention will be described based on the portable communication device
20 shown in FIG. Similar to the portable communication device 10, the portable communication
device 20 is applied to a mobile phone (or PHS). The portable communication device 20 has a flip
type structure including the device body 5 and the movable member 4, and the movable member
4 is in contact with one side (long side) of the bottom surface of the device body 5 and can be
opened and closed along the axis It is configured. Here, as shown in FIG. 2A, the state in which
the movable member 4 is stored in the apparatus main body 5 is taken as a first posture, and as
shown in FIG. 2B, the state in which the movable member 4 is opened is Two attitudes. In the
present embodiment, as in the first embodiment, switching between the first posture and the
second posture is performed by the user's operation action. Switching of the imaging mode is
performed by switching between the first orientation and the second orientation, and switching
to the imaging stop mode is performed in the first orientation, and switching to the imaging
operation mode is performed in the second orientation. In the device body 5 of the portable
communication device 20 in the present embodiment, a switch group relating to the call function
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of the mobile phone (or PHS) is provided on the surface shielded by the movable member 4 in
the first posture. It has an internal directivity switching means. The movable member 4 is
provided with an imaging means and a voice input means, provided on the opposite side of the
face where the imaging unit 1 of the imaging means is in contact with the device body 5, a face
in which the sound hole of the microphone 2 of the voice input means is in contact with the
device body 5 And it is provided in the facing. As in the first embodiment, the directivity
characteristic of this embodiment is the same as the first embodiment in the directivity
characteristic 6 of the single directivity shown in FIGS. 3A and 4A. The bi-directional directional
characteristic 6 shown in FIG. 3 (b) or the omnidirectional directional characteristic 6 as shown
in FIG. 4 (b) is provided in the two postures.
In the first embodiment and the second embodiment, the movable member 4 comprises the
photographing means and the microphone 2, and the device main body 5 comprises the acoustic
resistance member 3. It is not limited. The imaging means and the microphone 2 may be installed
in the apparatus main body 5, and the acoustic resistance material 3 may be installed in the
movable member 4, and the imaging means, the voice input means, and the directivity switching
means may be provided arbitrarily. Furthermore, one means may be divided according to
functions and distributed to both the movable member 4 and the apparatus main body 5.
Further, in the case of an apparatus constituted by two or more independent members, the
photographing means, the voice input means, and the directivity switching means may be
disposed in any members, or one means may be divided according to functions. You may provide
in a separate member. Further, in the first embodiment and the second embodiment, the
directivity is set to the bi-directional microphone 2 using the acoustic resistance material 3, but
the present invention is not limited to this. An MS microphone or a superdirective microphone
may be used, or a plurality of microphones 2 having different directivity may be provided in the
device of the present invention, and the microphone 2 to be used may be switched according to
the imaging mode. In addition, a plurality of types of acoustic resistance members 3 may be
provided, and the acoustic resistance members 3 for sealing the sound holes may be switched
automatically in response to the switching of the imaging mode or manually by the user. . As a
third embodiment of the device of the present invention, switching of the photographing mode in
the first embodiment and the second embodiment may be switches provided corresponding to
the respective photographing modes, or existing switches. It is conceivable to use a configuration
that is implemented by the user's switch operation. The portable communication apparatus
(mobile phone or PHS) in the present embodiment is, as shown in FIG. 6, signal processing means
(MODEM and DSP, AIU (PCM-CODEC and AudioIF)), control means (TDMA and CPU) In addition
to the system unit 60 including the RF / IF unit, the MEMORY, the LCD display unit, the power
control unit, the microphone (voice input unit), and the CCD module (imaging unit), the
directivity switching unit 61 and the photographing mode switching unit 62 are provided. . Here,
in the present embodiment, the movable member 4 may not be provided in order to switch the
imaging mode in conjunction with the switch operation of the user. The directivity switching
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means 61 is provided with one or a plurality of types of acoustic resistance members 3 and is
configured to switch the acoustic resistance members 3 for sealing the sound hole in conjunction
with switching of the photographing mode or by manual operation. A configuration is
conceivable in which a plurality of microphones 2 having the above are provided in the device of
the present invention, and the microphones 2 to be used are switched according to the imaging
mode.
In the present embodiment, when the movable member 4 is provided and it is necessary to
switch the attitude (for example, as shown in the first embodiment and the second embodiment,
the movable member using the acoustic resistance member 3) In the case where the directivity of
the voice input means is switched by the attitude switching of 4, or the attitude of the imaging
unit 1 needs to be switched according to the photographing mode as seen in a video camera etc.
which is generally marketed. In the case of the configuration etc.), an attitude control means 63
for performing attitude switching of the movable member is additionally provided, and
interlocked with the switching of the imaging mode so that the imaging means becomes capable
of imaging in the imaging operation mode. It may be configured to be implemented
automatically. In the first to third embodiments, the application to a mobile phone has been
described as an example, but the device to which the present invention is applied is not limited to
this. The present invention is applied to a portable communication device including a voice input
unit including a microphone 2 for inputting voice information such as a video camera or a digital
camera, and an imaging unit including an imaging unit 1 for inputting image information. Good.
Further, in the device of the present invention, when the imaging means has a main function
such as a video camera or digital camera, the switching of the photographing mode and the
switching of the directivity are individually switched by the manual operation of the user.
However, it is preferable that the directivity of the voice input unit be switched in conjunction
with the photographing mode when the imaging unit is not the main function of the device, such
as a cellular phone or PHS. With any configuration, the object of the portable electronic device
according to the present invention can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing an embodiment of a portable electronic device according to
the present invention. FIG. 2 is a perspective view showing an embodiment of a portable
electronic device according to the present invention. A diagram showing the directional
characteristics of the portable electronic device according to the present invention. Fig. 4 A
diagram showing the directional characteristics of the portable electronic device according to the
present invention. Fig. 5 A directional characteristic of the microphone of the portable electronic
device according to the present invention. FIG. 6 is a view showing a system configuration of a
mobile phone according to the present invention. FIG. 7 is a view showing an example of a prior
art for switching the directivity of a microphone. [Explanation of symbols] 1 imaging unit 2
microphone 3 acoustic resistance material REFERENCE SIGNS LIST 4 movable member 5 device
main body 6, 51, 52, 53 directivity characteristic 7 object 10, 20 portable communication device
60 system unit 61 directivity switching unit 62 photographing mode switching unit 63 attitude
03-05-2019
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control unit
03-05-2019
12
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