close

Вход

Забыли?

вход по аккаунту

?

JP2009260586

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2009260586
The present invention provides a portable acoustic device that can function as a sound output
device, a sound collection device, or a sound emission device according to the installation state of
each sound unit. A portable acoustic device 100 includes a plurality of acoustic units 1A to 1D,
and the acoustic units 1A to 1D are connected to one another. In addition, the portable acoustic
device 100 is installed around the voice processing device 3 and connected to the voice
processing device 3. The audio processing device 3 is, for example, a television, a radio, an IC
recorder, or the like. Each of the acoustic units 1A to 1D includes an attitude sensor 2 and a
plurality of sound emitting and receiving elements MS1 to MS6 functioning as a speaker or a
microphone, and the attitude sensor 2 detects the attitude of the own apparatus. The sound unit
1A connected to the head calculates the relative positional relationship of the sound units 1A to
1D based on the postures detected by the sound units 1A to 1D. The acoustic unit 1A determines
the function of each of the acoustic units 1A to 1D based on the relative positional relationship.
[Selected figure] Figure 5
Portable sound device
[0001]
The present invention relates to a portable acoustic device that switches functions of a speaker
and a microphone according to the posture of the device.
[0002]
Conventionally, various types of portable acoustic devices that function as speakers or
microphones have been proposed (see, for example, Patent Document 1).
09-05-2019
1
[0003]
The portable terminal described in Patent Document 1 has a display screen provided on the front
and back and two speakers provided on both sides of the display screen, and the user refers to
either display screen on the front or back according to the detection result of the tilt sensor.
Determine if you are.
In accordance with the determination result, it is determined which of the left and right two
speakers is installed.
Then, the audio signal of the L channel and the audio signal of the R channel are switched, and
sound is emitted from the two speakers. JP, 2006-174074, A
[0004]
However, the portable terminal described in Patent Document 1 merely switches the channel of
the audio signal emitted from the speaker according to the detection result of the tilt sensor, and
can not emit various sounds. Moreover, since it does not have a microphone, it can not pick up
sound.
[0005]
Therefore, the present invention has a plurality of sound emitting and receiving elements
functioning as a speaker or a microphone, and performs sound emitting, sound collecting, and
sound emitting according to the posture of the device having the sound emitting and receiving
elements. It is an object of the present invention to provide a portable audio device that can
[0006]
A portable acoustic device according to the present invention functions as a speaker or a
microphone, and includes a plurality of acoustic units each provided with a plurality of arrayed
sound emission / reception elements, the sound emission surface of each sound emission /
reception element A portable audio device connected in such a manner that they substantially
coincide with each other, wherein each of the plurality of audio units is an installation state
detection means for detecting an installation state, and a communication means capable of
09-05-2019
2
communicating with other audio units. Relative position of each acoustic unit based on
acquisition means for acquiring detection results of installation state detection means of other
acoustic units by the communication means, detection results of the installation state detection
means, and detection results acquired by the acquisition means Based on the relative positional
relationship calculating means for calculating the relationship and the calculation results of the
relative positional relationship calculating means, the functions of the sound emitting and
collecting elements of the plurality of sound units are determined for each sound unit. And
control means for, characterized by comprising a.
[0007]
In this configuration, the portable acoustic device is composed of a plurality of acoustic units
provided with a plurality of sound emission and reception elements functioning as a speaker or a
microphone.
The portable acoustic device connects a plurality of acoustic units such that the sound emission
surfaces of the plurality of sound emission and reception elements provided in the acoustic unit
substantially coincide with each other.
Each of the plurality of acoustic units calculates the relative positional relationship between the
acoustic units on the basis of the detected installation state of the own device and the installation
state of the other acoustic units connected, and according to the relative positional relationship
The function of the sound emitting and combining element is determined for each sound unit.
Thereby, the portable acoustic device can function as a sound emitting device, a sound collecting
device, or a sound emitting device according to the installation state of each sound unit.
Therefore, the user can set appropriate functions only by changing the installation state of each
sound unit.
[0008]
In the portable acoustic device according to the present invention, among the plurality of
acoustic units, one acoustic unit is set as a main unit, and the relative positional relationship
calculating unit of the main unit calculates the relative positional relationship of all the acoustic
units. It is characterized by
[0009]
09-05-2019
3
In this configuration, the portable acoustic device sets one of the plurality of acoustic units as the
main unit.
In the portable acoustic device, the main unit calculates the relative positional relationship of all
the acoustic units. As a result, the sound units other than the main unit can have a simpler
configuration than the main unit.
[0010]
Furthermore, in the portable acoustic device of the present invention, when the function of the
sound emitting and combining element of two or more of the plurality of acoustic units is
determined to be a speaker, the portable acoustic device functions as a speaker. A specific
channel is assigned to each of the acoustic units provided with
[0011]
In this configuration, when two or more sound units of the plurality of sound units function as
speakers, the portable sound device allocates a specific channel to each of the sound units
functioning as a speaker.
Thus, the portable acoustic device can emit multi-channel sound when two or more acoustic units
function as speakers.
[0012]
In addition, the relative positional relationship calculation means of the portable acoustic device
of the present invention causes a plurality of sound emitting and collecting elements provided in
the other acoustic units to function as speakers and instructs each to output a measurement
signal from each of them. At the same time, a plurality of sound emission and collection elements
provided in the device itself function as a microphone, and measurement signals from other
acoustic units are collected, and measurement is performed based on the time from the emission
of the measurement signal to the sound collection. It is characterized in that the relative
positional relationship of the other sound units that emitted the signal is calculated.
09-05-2019
4
[0013]
In this configuration, the portable acoustic device causes a plurality of sound emission and
reception elements provided in other acoustic units to function as speakers, and causes
measurement signals to be output from each of them.
The portable acoustic device causes a plurality of dual purpose elements provided in the acoustic
unit to function as a microphone, and picks up measurement signals emitted from other acoustic
units. The portable acoustic device calculates the relative positional relationship between the
acoustic unit and another acoustic unit based on the time from the emission of the measurement
signal to the collection of sound. As a result, the portable acoustic device can calculate the
relative positional relationship of the respective acoustic units only by switching between the
sound emitting and receiving element to the microphone and the speaker.
[0014]
Further, the installation state detection means of the portable acoustic device of the present
invention is a posture sensor.
[0015]
In this configuration, the portable acoustic device detects the installation state using a posture
sensor.
Thereby, the user can set to an appropriate function only by changing the posture of each sound
unit.
[0016]
According to the present invention, the portable acoustic device can function as a sound emitting
device, a sound collecting device, or a sound emitting device according to the installation state of
each acoustic unit. Therefore, the user can set appropriate functions only by changing the
installation state of each sound unit.
09-05-2019
5
[0017]
First Embodiment A portable acoustic device 100 according to a first embodiment of the present
invention will be described with reference to FIG. FIG. 1 is an example of use of the portable
acoustic device. The portable acoustic device 100 includes a plurality of acoustic units 1 (1A to
1D), and the acoustic units 1A to 1D are connected in series to each other by, for example, a
connection cable. The acoustic unit 1 has a plurality of sound emitting and receiving elements
MS1 to MS6 functioning as a speaker or a microphone, and the plurality of sound emitting and
receiving elements MS1 to MS6 at equal intervals in the longitudinal direction of the
substantially rectangular parallelepiped casing. Arrange in order. Here, the surface on which the
plurality of sound emission and collection / use elements MS1 to MS6 are arranged is taken as a
sound emission and collection surface. Further, the acoustic unit 1 is provided with a posture
sensor 2, and the posture sensor 2 is installed near one end in the longitudinal direction of the
housing. Here, an end face where the attitude sensor 2 in the longitudinal direction of the
housing is disposed is referred to as a first longitudinal end face 101, and an end face where the
attitude sensor 2 in the longitudinal direction of the housing is not disposed is as a second
longitudinal end face 102. Furthermore, the end surface on the left side in the short direction
when the sound collection surface is on the upper side with respect to the direction from the first
longitudinal end surface 101 to the second long end surface 102 of the housing is the first short
side surface 103 The end surface on the right side in the hand direction is referred to as a second
short side surface 104.
[0018]
In addition, the portable acoustic device 100 is installed around the voice processing device 3 so
that the sound emitting and receiving surfaces of the respective acoustic units 1A to 1D and the
front surface of the voice processing device 3 (surface of FIG. 1) match. The sound unit 1A and
the voice processing device 3 are connected. The audio processing device 3 is, for example, a
television, a radio, an IC recorder, or the like. Moreover, in the first embodiment, the portable
acoustic device 100 is installed around the voice processing device 3, but the installation location
is not limited to this.
[0019]
Each of the acoustic units 1A to 1D detects the posture of the own device by the posture sensor
09-05-2019
6
2. The leading acoustic unit 1A connected in series calculates the relative positional relationship
of the acoustic units 1A to 1D based on the postures detected by the acoustic units 1A to 1D, and
the acoustic units 1A to 1D based on the relative positional relationship. Determine the functions
of 1A-1D.
[0020]
Next, the function and configuration of the portable acoustic device 100 will be described with
reference to FIGS. FIG. 2 is a block diagram showing the function and configuration of the
portable acoustic device. FIG. 3 shows an example of the sound emission and collection function
database. FIG. 4 is another example of use of the portable acoustic device 100. 4 (A) and 4 (B)
show a portable acoustic device consisting of two acoustic units, and FIGS. 4 (C) and 4 (D) show a
portable acoustic device consisting of three acoustic units.
[0021]
As shown in FIG. 2, the acoustic unit 1 provided in the portable acoustic device 100 includes an
attitude sensor 2, a control unit 10, a storage unit 11, a communication control unit 12, an audio
signal processing unit 13, and an emitted sound combining element MS1 to It consists of MS6.
Hereinafter, in order to simplify the description, the sound unit 1A connected to the head is
referred to as a main unit 1A, and the remaining sound units 1B to 1D are referred to as sub
units 1B to 1D.
[0022]
The attitude sensor 2 is a so-called gyro sensor or the like, detects the attitude of the sound unit
1, and outputs attitude information for indicating the attitude to the control unit 10.
[0023]
The control unit 10 outputs an emitted and collected control signal for instructing the function of
the own device to the audio signal processing unit 13 to control the audio signal processing unit
13.
09-05-2019
7
The sound emission and collection control signal indicates either sound emission or sound
collection, and includes setting contents of sound emission channel directivity or sound collection
directivity.
[0024]
In addition to the above-described functions, the control unit 10 of the main unit 1A calculates
the relative positional relationship of each of the acoustic units 1A to 1D based on the number of
connected acoustic units 1, the connection relationship, and the posture information. Then, the
sound emission and collection function database 111 stored in the storage unit 11 (hereinafter
referred to as a sound emission and collection function DB). And generates a sound emission
control signal according to the relative positional relationship of each of the sound units 1A to
1D. In addition, the detail of the process at the time of the production | generation of a sound
emission control signal is mentioned later.
[0025]
The storage unit 11 stores the sound emission and collection function DB 111 shown in FIG. 3. In
the sound emission and collection function DB 111, the functions of the respective sound units 1
corresponding to the relative positional relationship of the respective sound units 1 are stored
for each number of sound units constituting the portable sound device 100.
[0026]
For example, patterns of a plurality of function settings as shown below are stored. When two
sound units 1A and 1B are installed vertically (see FIG. 4A), the sound unit 1B installed on the
upper side is a microphone, and the sound unit 1A installed on the lower side is a speaker It
becomes a pattern.
[0027]
When the two sound units 1A and 1B are installed on the left and right as viewed from the sound
collection surface (see FIG. 4B), the sound unit 1A installed on the left side is used as the L
channel audio signal. The speaker is a pattern for emitting sound, and the sound unit 1B installed
on the right side is a speaker for emitting an audio signal of R channel.
09-05-2019
8
[0028]
Furthermore, when the three sound units 1A to 1C are installed on the upper left and right as
viewed from the sound collection surface (refer to FIG. 4C), the sound unit 1B installed on the
upper side is a microphone and The installed acoustic unit 1A is a speaker for emitting an L
channel audio signal, and the acoustic unit 1C installed on the right side is a speaker for emitting
an R channel audio signal.
[0029]
In addition, when the three sound units 1A to 1C are installed on the lower left and right when
viewed from the sound collection surface (see FIG. 4D), the sound unit 1B installed on the lower
side is C (center A speaker for emitting an audio signal of a channel, a sound unit 1A installed on
the left side for a speaker for emitting an audio signal for L channel, and an audio unit 1C
installed on the right side for emitting an audio signal for R channel Make multi-channel audio
reproduction with the pattern to be the speaker to be
[0030]
In addition, when the four sound units 1A to 1D are installed vertically and horizontally as
viewed from the sound collection surface (see FIG. 1), the sound unit 1C installed on the upper
side is used as a microphone and installed on the lower side. The sound unit 1A is a speaker for
emitting an audio signal of the C (center) channel, the sound unit 1B installed on the left is a
speaker for emitting an audio signal for L channel, and the sound unit 1D installed on the right is
It becomes a pattern which becomes a speaker which emits the sound signal of R channel.
[0031]
As shown in the sound emission and collection function DB 111, the function of each sound unit
1 is set according to the number of sound units constituting the portable sound device 100 and
the relative positional relationship of each sound unit 1.
In particular, when the sound emitting function is assigned to the functions of the plurality of
acoustic units 1, each of the acoustic units 1 is set to emit an audio signal of a specific channel
according to the relative positional relationship.
09-05-2019
9
Note that the sound emission and collection function DB 111 shown in FIG. 3 is an example, and
may be appropriately set according to the specification.
In addition, only the main unit 1A may be included in the sound emission and collection function
DB 111, and the sub units 1B to 1D may not be included.
[0032]
The communication control unit 12 inputs and outputs various audio signals and various control
signals to and from the communication control unit 12 of the other audio unit 1 to be connected.
Further, the communication control unit 12 calculates the identification number of the own
device and outputs it to the control unit 10. Specifically, for example, the sound unit 1A
connected to the head sets the identification number of its own device to 1, and outputs the
identification number (identification number = 1) to the sound unit 1B connected thereto. Upon
receiving the input of the identification number (identification number = 1), the sound unit 1B
adds 1 to the identification number (identification number = 1) and sets it as the identification
number of the own device (identification number = 2). The acoustic unit 1B further outputs the
identification number of its own device to the acoustic unit 1C connected thereto. By performing
the above processing, the sound units 1A to 1D can set their identification numbers.
[0033]
Further, in addition to the above-described functions, the communication control unit 12 of the
main unit 1A performs input and output of various audio signals and various control signals with
the audio processing device 3.
[0034]
The sound signal processing unit 13 includes a sound collection signal processing unit 131 and a
sound emission signal processing unit 132, and based on the sound emission control signal input
from the control unit 10, functions of the sound collection and sound combining elements MS1
to MS6. Are determined, and individual sound processing is performed on the sound collection
signal or the sound emission signal according to the functions of the sound emission and
collection / combination elements MS1 to MS6.
09-05-2019
10
[0035]
<When the sound emitting and receiving elements MS1 to MS6 function as a microphone> The
sound signal processing unit 13 causes only the sound collection signal processing unit 131 to
function and does not cause the sound emission signal processing unit 132 to function.
The sound collection signal processing unit 131 performs delay processing or the like on the
sound collection signals input from the sound collection and collection elements MS1 to MS6 so
as to obtain directivity according to the sound collection control signal, and the sound collection
beam Generate a signal.
[0036]
<When the sound emitting and receiving elements MS1 to MS6 function as speakers> The sound
signal processing unit 13 does not cause the sound collection signal processing unit 131 to
function and causes only the sound emission signal processing unit 132 to function.
The sound emission signal processing unit 132 performs delay processing or the like on the
sound emission sound signal input from the communication control unit 12 so as to form an
audio signal of a specific channel according to the sound emission control signal, Generate an
emitted sound signal. The individual sound emitting sound signal is output to the sound emitting
and combining element MS1 to MS6.
[0037]
The sound emission and collection combined elements MS1 to MS6 are elements functioning as a
speaker and a microphone, and are connected to the audio signal processing unit 13. The
respective sound emitting and collecting elements MS1 to MS6 emit the individual sound
emitting sound signals input from the sound emitting signal processing unit 132 when
functioning as speakers. Further, when functioning as microphones, each of the sound emission
and collection elements elements 1 to 6 collects the surrounding sound to generate a sound
collection signal, and outputs the sound collection signal to the sound collection signal
processing unit 131. In the first embodiment, one sound unit 1 is provided with six sound
emitting and discharging elements MS1 to MS6, but one or more sound emitting and sound
09-05-2019
11
elements MS may be provided according to the specification. .
[0038]
Next, the flow of generation processing of the sound emission and collection control signal will
be described with reference to FIG. FIG. 5 is a flow chart showing a processing flow at the time of
generation of the sound emission control signal.
[0039]
As shown in FIG. 5, the control unit 10 of the sub-units 1B to 1D causes the communication
control unit 12 to set an identification number indicating what number is connected from the top
acoustic unit (main unit 1A) (S101) ).
[0040]
The control unit 10 of the subsidiary units 1B to 1D acquires posture information based on the
posture detected by the posture sensor 2 (S102).
The control unit 10 of the sub-units 1B to 1D outputs the identification number and the posture
information to the main unit 1A (S103).
[0041]
The control unit 10 of the main unit 1A causes the communication control unit 12 to set the
identification number as 1 (S111), and acquires posture information based on the posture
detected by the posture sensor 2 (S112). When the control unit 10 of the main unit 1A receives
the input of the identification number and the posture information of each of the sub units 1B to
1D (S113: Yes), the control unit 10 performs the process of step S114 and subsequent steps.
When the identification number and the posture information are not input because the sub unit
is not connected (S113: No), the processing is ended.
[0042]
09-05-2019
12
In step S114, the control unit 10 of the main unit 1A calculates the relative positional
relationship of the sound units 1A to 1D based on the identification numbers of the sound units
1A to 1D and the posture information. For example, as shown in FIG. 1, the posture information
of the first connected main unit 1A (identification number = 1) indicates that the first short side
surface 103 indicates the lower and the second connected sub unit 1B (identification In the
posture information of No. 2), the first longitudinal end face 101 indicates the bottom, and the
posture information of the third connected sub-unit 1C (identification No. 3) indicates the second
short side surface 104, the fourth; When the second longitudinal end face 102 indicates the
lower, the posture information of the sub unit 1D (identification number = 4) connected to the
control unit 10 of the main unit 1A, the sub unit 1B is directed to the second longitudinal end
face 102 of its own device It is calculated that it is installed on the left side seen from the sound
emission side. Similarly, the control unit 10 of the main unit 1A calculates that the sub unit 1C is
installed on the upper side as viewed from the sound emitting surface side and that the sub unit
1D is installed on the right side as viewed from the sound emitting surface side. . That is, the
portable acoustic device 100 generates an acoustic signal based on the identification number for
indicating the order in which each of the acoustic units 1A to 1D is connected and the attitude
information indicating the attitude of each of the acoustic units 1A to 1D. Calculate the relative
positional relationship of the units 1A to 1D (the main unit 1A is lower, the sub unit 1B is left, the
sub unit 1C is upper, and the sub unit 1D is installed on the right when viewed from the sound
emitting surface). Can.
[0043]
The control unit 10 of the main unit 1A determines the sound emission and collection function of
each of the sound units 1A to 1D corresponding to the calculated relative positional relationship
with reference to the sound emission and collection function DB 111 stored in the storage unit
11 (S115 ). The control unit 10 of the main unit 1A generates a sound emission control signal for
each of the sound units 1A to 1D (S116). The control unit 10 of the main unit 1A outputs the
sound emission and collection control signal to the sound signal processing unit 13 of the own
device, and performs sound processing according to the sound collection and control signal
(S117). In addition, the control unit 10 of the main unit 1A outputs the sound emission control
signal to the sub units 1B to 1D (S118). Although the process of step S118 is performed after the
process of step S117, the process of step S117 may be performed after the process of step S118,
or the process of step S117 and the process of step S118 may be performed simultaneously.
Good.
09-05-2019
13
[0044]
When the control unit 10 of the sub-units 1B to 1D receives the input of the sound emission
control signal (S104: Yes), the control unit 10 performs the processing of step S105 and
thereafter. The control unit 10 of each of the sub-units 1B to 1D does not perform the process
after step S105 until the input of the sound emission control signal is received (S104: No).
[0045]
In step S105, the control unit 10 of the sub-units 1B to 1D outputs the sound emission control
signal to the sound signal processing unit 13 of the own device to cause the sound processing
according to the sound emission control signal. Specifically, for example, when the sound
emission and collection combined elements MS1 to MS6 of the plurality of sound units 1 are set
as the speakers to which the specific channel is allocated, the control unit 10 sets the allocated
specific channel (L channel, The sound emission signal processing unit 132 causes the sound
emission signal processing unit 132 to perform delay processing and the like so as to emit sound
signals of the R channel, the C channel, and the like. In addition, when only the sound emission /
reception combined elements MS1 to MS6 of the own device are set as speakers, the control unit
10 performs delay processing etc. to the sound emission signal processing unit 132 so as to emit
monaural sound signals. Let Also, when the sound emitting and receiving elements MS1 to MS6
are set as microphones, the control unit 10 delays the sound collecting signals of the sound
emitting and sound combining elements MS1 to MS6 so as to generate a sound collecting beam
signal. The sound pickup signal processing unit 131 performs processing and the like.
[0046]
As described above, each of the sound units 1A to 1D is set to emit or collect sound according to
the identification number indicating the order of connection from the head sound unit 1A and
the posture of the device. . Further, when a plurality of sound units 1 function as a sound output
device, each sound unit 1 emits an audio signal of a specific channel according to the relative
positional relationship of the devices. As a result, the portable acoustic device 100 can
appropriately perform sound emission, sound collection, and sound emission according to the
posture of the own device. In addition, the portable acoustic device 100 can appropriately emit
multi-channel sound according to the posture of the device.
09-05-2019
14
[0047]
Second Embodiment Next, a portable acoustic device 100 according to a second embodiment of
the present invention will be described. In the first embodiment, the relative positional
relationship is calculated according to the identification number indicating the order of
connection from the leading acoustic unit 1A and the posture of each device, but in the second
embodiment, the relative positional relationship is measured. The relative positional relationship
is calculated according to the relative angle between the devices calculated by the collection and
collection and the posture of each device. Hereinafter, a method of calculating the relative
positional relationship will be described with reference to FIGS. 6 and 7. FIG. 6 is an explanatory
view regarding calculation of relative positional relationship in the second embodiment. FIG. 7 is
a flowchart showing a processing flow at the time of relative positional relationship calculation in
the second embodiment. In the following description, the sound emitting / collecting elements
MS1 to MS6 of the main unit 1A are referred to as sound emitting / collecting elements MS1A to
MS6A, and the sound emitting / collecting elements MS1 to MS6 of the sub unit 1B are
generated as the sound emitting / collecting elements MS1B ~ MS6B.
[0048]
As shown in FIG. 7, the main unit 1A instructs the adjacent sub unit 1B to emit the measurement
signal from the sound emission and reception element MS1B (S211).
[0049]
When the sub unit 1B receives the sound output instruction of the sound output-collector
element MS1B (S201: Yes), the sub-unit 1B causes the sound output-collector element MS1B to
function as a speaker and emits the measurement signal from the sound output-collector element
MS1B ( S202).
Note that the sub unit 1B does not perform the process of step S202 and subsequent steps until
the sound emission instruction of the sound emission and sound combination element MS1B is
received (S201: No).
[0050]
09-05-2019
15
When the main unit 1A causes the sound emission / reception dual-use elements MS1A and
MS6A to function as a microphone and the measurement signal is collected (S212: Yes), the
measurement time from the start of sound emission of the measurement signal to the collection
is released. The position of the sound emitting and combining element MS1B of the sub unit 1B is
calculated based on the calculation result for each of the sound collecting and combining
elements MS1A and MS6A (S213). Here, it is assumed that the time from the start of sound
emission to the start of sound emission can be ignored as the specification of the device, and the
measurement time is not the time from the sound emission of the measurement signal to the
sound collection, but the sound emission of the measurement signal It was the time from when
you instructed to pick up.
[0051]
As shown in FIG. 6, the position of the sound emitting / collecting element MS1B of the sub unit
1B is the distance (distance L1) between the sound emitting / collecting element MS1A of the
main unit 1A and the sound emitting / receiving element MS6A, and the main unit A distance
between the emitting and collecting element MS1A of 1A and the emitting and collecting element
MS1B of the sub unit 1B (distance L2: a distance calculated based on the measurement time of
the emitting and receiving element MS1A) and the release of the main unit 1A Calculated by
trigonometry based on the distance between the sound collection / combination element MS6A
and the sound emission and collection / combination element MS1B of the sub unit 1B (distance
L3: distance calculated based on the measurement time of the sound collection and sound
combination element MS6A) Be done. As a result, the positions of the sound emission and sound
combining element MS1B of the sub unit 1B are calculated at two positions with the main unit
1A as an axis target. As a result, the position of the sub unit 1B is at two positions: the position X
at which the sound emitting and receiving element MS1B of the sub unit 1B actually exists, and
the position X 'at the position X with the main unit 1A as an axis. It is identified. When the main
unit 1A does not pick up the measurement signal because the sub unit is not connected (S212:
No), the process ends.
[0052]
The main unit 1A instructs the sub unit 1B to emit the measurement signal from the sound
emission and collection element MS6B (S214).
[0053]
09-05-2019
16
When the sub unit 1B receives the sound output instruction of the sound output-collector
element MS6B (S203: Yes), the sub-unit 1B causes the sound output-collector element MS6B to
function as a speaker and emits the measurement signal from the sound output-collector element
MS6B ( S204).
Note that the sub unit 1B does not perform the process of step S204 and subsequent steps until
the sound emission instruction of the sound emission and sound combination element MS6B is
received (S203: No).
[0054]
When the main unit 1A causes the sound emission / reception dual-use elements MS1A and
MS6A to function as a microphone and the measurement signal is collected (S215: Yes), the
measurement time from the instruction of emitting the measurement signal to the collection is
released Calculation is performed for each of the sound collecting and combining elements MS1A
and MS6A, and the position of the sound emitting and combining element MS6B of the sub unit
1B is calculated based on the calculation result (S216). As shown in FIG. 6, two positions Y and Y
'are calculated with the main unit 1A as an axial target, as in the sound emitting and collecting
element MS6B of the sub unit 1B, as shown in FIG. . When the main unit 1A does not pick up the
measurement signal because the sub unit is not connected (S215: No), the process ends.
[0055]
The main unit 1A is a set of the sub unit 1B with the main unit 1A as an axial target based on the
positions (X, Y), (X ', Y') of the sound emission and collection / combination elements MS1B and
MS6B of the sub unit 1B. The relative positional relationship of is calculated (S217). The main
unit 1A detects the attitude of its own device, and acquires attitude information (S218).
[0056]
The subsidiary unit 1B detects the attitude of the own device (S205), and outputs attitude
information to the main unit 1A (S206).
[0057]
09-05-2019
17
When the main unit 1A receives the input of the posture information of the sub unit 1B (S219:
Yes), based on the posture information of the sub unit 1B, selects one of the relative positional
relationships of one set of the sub unit 1B. Then, the relative positional relationship of the sub
unit 1B is calculated (S220).
Here, as shown in FIG. 6, according to the posture information of the sub unit 1B, the first
longitudinal end face 101 indicates the lower side, so the main unit 1A selects one from a pair of
relative positional relationships, and the sub unit 1B The relative positional relationship of can be
calculated. When no posture information is input (S219: No), the main unit 1A ends the process,
because the sub unit is not connected or the like.
[0058]
From the above, the main unit 1A can calculate the relative positional relationship of the sub unit
1B. Further, by repeating the above-described process, the main unit 1A can sequentially
calculate the relative positional relationship between the other sub units 1C and 1D. As a result,
the relative positional relationship of each of the sound units 1A to 1D can be calculated.
[0059]
In the second embodiment, the measurement signal is emitted in the order of the sound emitting
and collecting element MS1B and the sound emitting and combining element MS6B of the sub
unit 1B. However, measurement signals having different frequency bands may be simultaneously
emitted from each of the sound emission and collection / use elements MS1B and MS6B of the
sub unit 1B.
[0060]
Further, in the second embodiment, the main unit 1A calculates the relative positional
relationship of each of the sound units 1A to 1D by calculating the relative positional relationship
of each of the sub units 1B to 1D. However, the main unit 1A calculates the relative positional
relationship of the adjacent sub-units 1B, the sub-unit 1B calculates the relative positional
relationship of the adjacent other sub-units 1C, and the sub-unit 1C corresponds to the adjacent
09-05-2019
18
sub-unit 1D. The relative positional relationship of each of the sound units 1A to 1D may be
calculated by calculating the relative positional relationship.
[0061]
Furthermore, in the second embodiment, one is selected from a pair of relative positional
relationships based on the posture information. However, as long as each of the sound units 1A
to 1D can rotate only in one direction, it is sufficient to select one of the pair of relative positional
relationships so as to rotate in the rotatable direction. Thereby, the relative positional
relationship of each sound unit 1A-1D can be calculated.
[0062]
In addition, in the second embodiment, the discharge / discharge combination elements MS1A,
MS6A of the main unit 1A function as a microphone, and the discharge / discharge combination
element MS1B of the sub unit 1B functions as a speaker to release the discharge of the sub unit
1B. The position of the sound pickup unit MS1B was calculated. However, the position of the
sound emission combining element MS1B of the sub unit 1B is achieved by causing the sound
emission combining element MS1A, MS6A of the main unit 1A to function as a speaker and the
sound emission combining element MS1B of the sub unit 1B functioning as a microphone. May
be calculated.
[0063]
In the embodiment described above, the sound unit 1A connected to the head is connected to the
sound processing device 3, but sound units 1B to 1D other than the head may be connected to
the sound processing device 3. In this case, the sound unit 1 connected to the voice processing
device may be set as the main unit.
[0064]
Further, in the embodiment described above, the attitude sensor 2 detects the attitude. However,
as long as the relative positional relationship between the acoustic units 1A to 1D can be
09-05-2019
19
calculated, an inclination sensor that detects an inclination may be used instead of the attitude
sensor 2. Also, a position detection sensor may be used.
[0065]
Furthermore, in the above-mentioned embodiment, although main unit 1A determined the
function of all the sound units 1A-1D, each sound units 1A-1D each calculated relative positional
relationship, and based on the relative positional relationship which the own device calculated.
Thus, the functions of the device itself may be determined.
[0066]
In addition, in the above-described embodiment, each of the sound emission and collection
combined elements MS1 to MS6 of the sound unit 1 function as a microphone or function as a
speaker, but for example, the sound emission and collection combined elements MS3 and MS4
are microphones The other sound emitting and receiving elements MS1, MS2, MS5 and MS6 may
function as speakers.
[0067]
Moreover, in the above-mentioned embodiment, although the sound emission and sound
combining elements MS1 to MS6 of the acoustic unit 1 are arranged at equal intervals, the
centers may be densely arranged and the outside may be sparse.
[0068]
It is an example of the usage example of a portable sound apparatus.
It is a block diagram which shows the function and structure of a portable sound apparatus.
An example of the sound emission and collection function database is shown.
7 is another use example of the portable acoustic device 100. FIG. It is a flowchart which shows
the processing flow at the time of the production | generation of a sound emission control signal.
It is explanatory drawing regarding calculation of the relative positional relationship in 2nd
Embodiment. It is a flowchart which shows the processing flow at the time of relative positional
09-05-2019
20
relationship calculation in 2nd Embodiment.
[0069]
DESCRIPTION OF SYMBOLS 1 ... Acoustic unit, 2 ... Attitude sensor, 3 ... Speech processing device,
10 ... Control part, 11 ... Storage part, 12 ... Communication control part, 13 ... Speech signal
processing part, 100 ... Portable acoustic device, 101 ... 1st Longitudinal end face 102: second
longitudinal end face 103: first short side face 104: second short side face 111: sound emission
and collection function database 131: sound collection signal processing portion 132: sound
emission signal processing portion MS1 to MS6: sound emitting and receiving elements
09-05-2019
21
Документ
Категория
Без категории
Просмотров
0
Размер файла
32 Кб
Теги
jp2009260586
1/--страниц
Пожаловаться на содержимое документа