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JP2015226281

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DESCRIPTION JP2015226281
The present invention provides an audio output device capable of suppressing a user from
listening to audio when switching the connection destination of the audio output device. A
television receiver 4 includes a built-in speaker 10, a first mode for outputting sound from the
built-in speaker 10, and sound from one of an external speaker 6 and a headphone 8 to which
the television receiver 4 is connected. And a receiving unit for receiving an instruction to switch
the connection destination of the television receiver 4 between the external speaker 6 and the
headphone 8 in the second mode; Between the connection switching unit switching the
connection destination of the television receiver 4 from one of the external speaker 6 and the
headphone 8 to the other based on at least the switching of the connection destination by the
connection switching unit until the switching is completed And a speaker control unit for
outputting sound from the built-in speaker. [Selected figure] Figure 1
Voice output device and voice output system
[0001]
The present invention relates to an audio output device and an audio output system.
[0002]
There is known an audio output system in which an audio output device such as a television
receiver having an internal speaker and an externally connected device such as a headphone or
an external speaker can be connected by Bluetooth (registered trademark) (for example, a patent)
Reference 1).
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1
In this audio output system, for example, when a television receiver and headphones are
connected, audio such as a broadcast program viewed on the television receiver is output from
the headphones without being output from the built-in speaker Be done.
[0003]
In such an audio output system, the connection destination of the television receiver can be
switched from, for example, headphones to an external speaker. FIG. 11 is a timing chart showing
an operation of switching the connection destination of the television receiver in the
conventional audio output system. As shown in FIG. 11, while the television receiver and the
headphones are connected, sound is output from the headphones. Thereafter, the output of the
sound from the headphones is stopped at the timing when the switching of the connection
destination of the television receiver is started. Further, thereafter, at the timing when the
switching of the connection destination of the television receiver is completed, the audio is
output from the external speaker.
[0004]
JP, 2009-55451, A
[0005]
In the above-described conventional audio output system, a time lag of, for example, several
seconds occurs between the timing when switching of the connection destination of the
television receiver starts and the timing when switching of the connection destination is
completed.
This time lag is due to the time required for processing for establishing connection between the
television receiver and the externally connected device at the connection destination. Therefore,
the output of the audio is interrupted during the period from the start of switching of the
connection destination of the television receiver to the end of the switching, which causes a
problem that the user misses the audio.
09-05-2019
2
[0006]
In addition, in order to solve the subject mentioned above, the method as shown, for example in
FIG. 12 can be considered. FIG. 12 is a timing chart showing an operation of switching the
connection destination of the television receiver in the audio output system of the comparative
example. In the method illustrated in FIG. 12, audio continues to be output from the headphone
as the connection source until switching of the connection destination of the television receiver is
started until completion. However, even in such a method, when the user removes the
headphones from the head immediately after the switching of the connection destination of the
television receiver starts, the user may miss the audio.
[0007]
The present invention is intended to solve the above-described problems, and an object thereof is
to provide an audio output device and an audio output capable of suppressing the user from
listening to audio when switching the connection destination of the audio output device. It is to
provide a system.
[0008]
In order to achieve the above object, an audio output apparatus according to an aspect of the
present invention is an audio that can be selectively connected to a first external connection
device and a second external connection device that output audio by a predetermined wireless
method. An output device comprising: a speaker for outputting sound; a first mode for outputting
sound from the speaker; and the first external connection device and the second external
connection device to which the audio output device is connected A mode switching unit for
switching between a second mode in which audio is output from one of the first and second
external devices and a connection destination of the audio output device in the second mode; And
a connection switching unit that switches the connection destination of the voice output device
from one of the first external connection device and the second external connection device to the
other based on the instruction. Comprises at least during the the connection start the switching
of the connection destination by switching unit until the switching is completed, and a speaker
control unit for outputting a sound from the speaker.
[0009]
According to this aspect, the speaker control unit causes the speaker to output sound at least
after the switching of the connection destination by the connection switching unit is started until
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the switching is completed.
As a result, when switching the connection destination of the voice output device, it is possible to
prevent the user from listening to the voice without interrupting the voice output.
[0010]
For example, in the audio output device according to one aspect of the present invention, the
speaker control unit continues the switching after the switching of the connection destination by
the connection switching unit starts and until the switching is completed. The sound may be
output from the speaker until a predetermined time has elapsed since the time t.
[0011]
According to this aspect, the speaker control unit causes the speaker to output sound for a
predetermined time even after the switching of the connection destination by the connection
switching unit is completed.
Thereby, when switching the connection destination of the audio output device, it is possible to
more effectively suppress the user from listening to the audio.
[0012]
For example, in the audio output device according to one aspect of the present invention, the
speaker control unit fades out the audio from the speaker until the predetermined time elapses
after switching of the connection destination by the connection switching unit is completed. It
may be configured to be output while being output.
[0013]
According to this aspect, the speaker control unit causes the speaker to fade out the sound and
output while the predetermined time elapses after the switching of the connection destination is
completed.
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Thereby, the output of the sound from the speaker can be stopped without giving a sense of
incongruity to the user.
[0014]
For example, in the audio output device according to the aspect of the present invention, the
speaker control unit is configured to cause the speaker to output voice while fading in when
switching of the connection destination by the connection switching unit is started. May be
[0015]
According to this aspect, when switching of the connection destination by the connection
switching unit is started, the speaker control unit causes the speaker to fade in and output the
audio.
As a result, for example, the voice is not suddenly output at a large volume from the speaker, so
the voice can be output from the speaker without giving a sense of discomfort to the user.
[0016]
For example, in the audio output device according to the aspect of the present invention, the
predetermined wireless system may be configured to be Bluetooth.
[0017]
According to this aspect, the audio output device can be connected to one of the first external
connection device and the second external connection device by Bluetooth.
[0018]
An audio output system according to an aspect of the present invention can selectively connect
an audio output device that outputs audio, and a first external connection device and a second
external connection device that output audio using a predetermined wireless method. The audio
output system according to claim 1, wherein the first external device is an instruction to switch
the connection destination of the audio output device between the first external device and the
second external device. The audio output device includes an output unit for outputting sound to
the output device, the speaker for outputting sound, a first mode for outputting sound from the
speaker, and the first external to which the audio output device is connected A mode switching
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5
unit for switching to a second mode in which voice is output from one of the connected device
and the second externally connected device; a receiving unit for receiving the instruction in the
second mode; and based on the instruction Connection switching unit for switching the
connection destination of the voice output device from one of the first external connection device
and the second external connection device to the other, and switching after at least the switching
of the connection destination by the connection switching unit is started And a speaker control
unit for outputting sound from the speaker until the process is completed.
[0019]
According to this aspect, the speaker control unit causes the speaker to output sound at least
after the switching of the connection destination by the connection switching unit is started until
the switching is completed.
As a result, when switching the connection destination of the voice output device, it is possible to
prevent the user from listening to the voice without interrupting the voice output.
[0020]
The present invention can not only be realized as an audio output device provided with such a
characteristic processing unit, but also has a control method in which the processing executed by
the characteristic processing unit included in the audio output device is taken as a step. It can be
realized.
Further, it may be realized as a program for causing a computer to function as a characteristic
processing unit included in an audio output device or a program for causing a computer to
execute characteristic steps included in a control method.
It goes without saying that such a program can be distributed via a computer readable nontransitory recording medium such as a CD-ROM (Compact Disc-Read Only Memory) or a
communication network such as the Internet. .
[0021]
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6
According to the audio output device according to the aspect of the present invention, when
switching the connection destination of the audio output device, it is possible to suppress the
user from listening to the audio.
[0022]
FIG. 1 is a conceptual diagram showing the configuration of an audio output system according to
Embodiment 1.
It is a block diagram which shows the structure of a television receiver.
FIG. 3 is a block diagram showing a functional configuration of a host controller. It is a block
diagram which shows the structure of an external speaker. It is a block diagram showing
composition of headphones. FIG. 7 is a sequence diagram showing a flow of switching the
connection destination of the television receiver from headphones to an external speaker in the
audio output system according to the first embodiment. 7 is a timing chart showing an operation
of switching a connection destination of the television receiver from headphones to an external
speaker in the audio output system according to Embodiment 1. FIG. FIG. 7 is a sequence
diagram showing a flow of switching the connection destination of the television receiver from
the external speaker to the headphone in the audio output system according to the first
embodiment. 7 is a timing chart showing an operation of switching a connection destination of a
television receiver from an external speaker to headphones in the audio output system according
to Embodiment 1. FIG. FIG. 13 is a sequence diagram showing a flow of switching the connection
destination of the television receiver from an external speaker to headphones in the audio output
system according to the second embodiment. It is a timing chart which shows the operation
which changes the connecting point of a television receiver in the conventional audio output
system. In the audio output system of a comparative example, it is a timing chart which shows
the operation which changes the connecting point of a television receiver.
[0023]
Hereinafter, embodiments of the present invention will be described in detail with reference to
the drawings. The embodiments described below all show one preferable specific example of the
present invention. The numerical values, shapes, materials, components, arrangement positions
and connection forms of the components, steps, order of steps, and the like shown in the
09-05-2019
7
following embodiments are merely examples, and are not intended to limit the present invention.
The invention is specified by the claims. Therefore, among the components in the following
embodiments, components not described in the independent claims are not necessarily required
to achieve the object of the present invention, but are described as constituting a more preferable
embodiment. Be done.
[0024]
(First Embodiment) [Schematic Configuration of Audio Output System] First, a schematic
configuration of an audio output system 2 according to a first embodiment will be described with
reference to FIG. FIG. 1 is a conceptual diagram showing the configuration of the audio output
system according to the first embodiment.
[0025]
As shown in FIG. 1, in the audio output system 2 of the present embodiment, the television
receiver 4 (audio output device) and the external speaker 6 (one of the first external connection
device and the second external connection device) And the headphones 8 (the other of the first
external connection device and the second external connection device) can be selectively
connected by a predetermined wireless method, for example, Bluetooth.
[0026]
The television receiver 4 is a host device that displays an image such as a broadcast program and
outputs an audio such as a broadcast program by receiving broadcast waves.
The television receiver 4 has a built-in speaker 10 (speaker) that outputs sound. The external
speaker 6 and the headphone 8 are device devices that output sound based on the sound signal
from the television receiver 4.
[0027]
In the audio output system 2 described above, when the connection between the television
receiver 4 and the external speaker 6 and the headphone 8 is disconnected, the audio such as a
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8
broadcast program viewed by the television receiver 4 is a built-in speaker It is output from 10.
On the other hand, when the television receiver 4 and the external speaker 6 (or the headphones
8) are connected, the sound of a broadcast program etc. being viewed on the television receiver 4
is not output from the built-in speaker 10 , From the external speaker 6 (or headphones 8).
[0028]
As described later, when the television receiver 4 and the external speaker 6 (or the headphones
8) are connected, the connection destination of the television receiver 4 is changed from the
external speakers 6 to the headphones 8 (or the headphones 8). To the external speaker 6).
[0029]
[Configuration of Television Receiver] Next, the configuration of the above-described television
receiver 4 will be described with reference to FIGS. 1 to 3.
FIG. 2 is a block diagram showing the configuration of the television receiver. FIG. 3 is a block
diagram showing a functional configuration of the host controller.
[0030]
As shown in FIGS. 1 and 2, a charging stand 12 for charging the headphones 8 is connected to
the television receiver 4 via a cable 14. The charging stand 12 has a charging terminal 16
electrically connected to a charging terminal 60 (described later) of the headphone 8. When the
headphones 8 are set in the charging stand 12, predetermined power is supplied from the
charging terminal 16 of the charging stand 12 to the battery 56 (described later) via the
charging terminals 60 of the headphones 8 to charge the headphones 8. Is done.
[0031]
As shown in FIG. 2, the television receiver 4 includes an attachment / detachment sensor 18, a
communication unit 20, and a host controller 22 in addition to the built-in speaker 10 described
above.
[0032]
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9
The attachment / detachment sensor 18 is a sensor for detecting attachment / detachment of the
headphones 8 to the charging stand 12.
The attachment / detachment sensor 18 outputs to the host controller 22 a charging stand
attachment / detachment signal indicating that the headphone 8 has been removed from the
charging stand 12 when the headphone 8 is removed from the charging stand 12.
[0033]
The communication unit 20 performs short distance wireless communication at a speed of up to
24 Mbps using radio waves in the 2.45 GHz band in compliance with the wireless communication
system of IEEE 802.15.1.
[0034]
The host controller 22 is for controlling the television receiver 4.
As shown in FIG. 3, the host controller 22 includes a connection processing unit 24, a mode
switching unit 26, a receiving unit 28, a connection switching unit 30, and a speaker control unit
32.
[0035]
The connection processing unit 24 performs processing for establishing or disconnecting a
connection between the television receiver 4 and the external speaker 6 (or between the
television receiver 4 and the headphone 8).
[0036]
The mode switching unit 26 switches between the first mode and the second mode as a mode for
outputting audio of a broadcast program or the like viewed on the television receiver 4.
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10
The first mode is a mode in which sound is output from the built-in speaker 10. In the first mode,
no sound is output from the external speaker 6 and the headphone 8. The second mode is a
mode in which sound is output from the external speaker 6 (or the headphone 8) to which the
television receiver 4 is connected. In the second mode, no sound is output from the built-in
speaker 10. The switching between the first mode and the second mode is performed, for
example, by the user operating a remote controller (not shown) of the television receiver 4.
[0037]
When the receiving unit 28 is switched to the second mode, the connection destination of the
television receiver 4 is based on the charging stand attachment / detachment signal from the
attachment / detachment sensor 18 or the headphone attachment / detachment signal from the
headphone 8 (described later). A switching instruction (instruction) for switching between the
external speaker 6 and the headphone 8 is received. That is, the charging stand attachment /
detachment signal and the headphone attachment / detachment signal respectively constitute the
switching instruction.
[0038]
The connection switching unit 30 switches the connection destination of the television receiver 4
from the external speaker 6 to the headphone 8 (or from the headphone 8 to the external
speaker 6) based on the switching instruction.
[0039]
The speaker control unit 32 continues the switching of the connection destination by the
connection switching unit 30 until the switching is completed, and until the predetermined time
(for example, several seconds) elapses after the switching is completed. , Sound is output from
the built-in speaker 10.
[0040]
[Configuration of External Speaker] Next, the configuration of the above-described external
speaker 6 will be described with reference to FIGS. 1 and 4.
FIG. 4 is a block diagram showing the configuration of the external speaker.
09-05-2019
11
[0041]
As shown in FIGS. 1 and 4, the external speaker 6 includes a speaker 34, a communication unit
36 and a device controller 38.
[0042]
The speaker 34 outputs an audio based on an audio signal from a host device (for example, the
television receiver 4) connected to the external speaker 6.
[0043]
The communication unit 36 performs short distance wireless communication at a speed of up to
24 Mbps using radio waves in the 2.45 GHz band in accordance with the wireless communication
system of IEEE 802.15.1.
[0044]
The device controller 38 controls the external speaker 6.
Specifically, for example, the device controller 38 has a function of controlling sound output from
the speaker 34 and a function of performing processing for establishing or disconnecting a
connection between the television receiver 4 and the external speaker 6. Etc.
[0045]
[Configuration of Headphones] Next, the configuration of the above-described headphones 8 will
be described with reference to FIGS. 1 and 5.
FIG. 5 is a block diagram showing the configuration of the headphones.
[0046]
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12
As shown in FIGS. 1 and 5, the headphone 8 has an R side (right side) housing 40 to be worn on
the user's right ear and an L side (left side) housing 42 to be worn on the user's left ear. doing.
Ear pads 44 and 46 are attached to the R side housing 40 and the L side housing 42,
respectively.
[0047]
Proximity sensors 48 and 50 are built in the ear pads 44 and 46, respectively.
The proximity sensors 48 and 50 are sensors for detecting that the user's hand approaches or
touches the ear pads 44 and 46, respectively. The proximity sensors 48 and 50 respectively
output detection signals to a device controller 66 (described later) when it is detected that the
user's hands approach or contact the ear pads 44 and 46, respectively.
[0048]
An R-side speaker 52 and an L-side speaker 54 are incorporated in the R-side housing 40 and the
L-side housing 42, respectively. Each of the R-side speaker 52 and the L-side speaker 54 outputs
an audio based on an audio signal from a host device (for example, the television receiver 4)
connected to the headphone 8.
[0049]
A battery 56 and an operation unit 58 are further incorporated in the L-side housing 42. The
battery 56 is a storage battery capable of charging and discharging, and supplies power to the
device controller 66 and the like. The operation unit 58 is a switch or a button or the like for
performing an operation (for example, an operation such as power on / off) of the headphone 8.
A part of the operation unit 58 is exposed to the outside of the L-side housing 42.
[0050]
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13
The R-side housing 40 further includes a charge terminal 60, an operation unit 62, a
communication unit 64 (output unit), and a device controller 66.
[0051]
The charging terminal 60 is electrically connected to the charging terminal 16 of the charging
stand 12 when the headphones 8 are set to the charging stand 12 described above.
The predetermined power is supplied from the charging terminal 16 of the charging stand 12 to
the battery 56 through the charging terminal 60, whereby the headphones 8 are charged.
[0052]
The operation unit 62 is a switch or a button or the like for performing an operation (for
example, an operation such as adjustment of the sound volume) of the headphone 8. A part of the
operation unit 62 is exposed to the outside of the R-side housing 40.
[0053]
The communication unit 64 performs short-range wireless communication at a speed of up to 24
Mbps using radio waves in the 2.45 GHz band in accordance with the wireless communication
system of IEEE 802.15.1.
[0054]
The device controller 66 controls the headphones 8.
Specifically, for example, the device controller 66 has a function of controlling sound output from
each of the R-side speaker 52 and the L-side speaker 54, and establishes or disconnects the
connection between the television receiver 4 and the headphone 8. It has a function to perform
processing for The device controller 66 further determines that the user is trying to remove the
headphone 8 from his head with both hands when the detection signals are output from the
proximity sensors 48 and 50 respectively, and the headphones are removed via the
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14
communication unit 64 The signal is transmitted to the television receiver 4. When the detection
signal is output from only one of the proximity sensors 48 and 50, the device controller 66
determines that the user operates the operation unit 58 (or the operation unit 62) with one hand,
and the headphones Do not send the removal signal.
[0055]
[Flow 1 of Switching Connection Destination of Television Receiver] Next, a flow of switching the
connection destination of the television receiver 4 from the headphone 8 to the external speaker
6 will be described with reference to FIGS. 6 and 7. FIG. 6 is a sequence diagram showing a flow
of switching the connection destination of the television receiver from headphones to an external
speaker in the audio output system according to the first embodiment. FIG. 7 is a timing chart
showing an operation of switching the connection destination of the television receiver from
headphones to an external speaker in the audio output system according to the first embodiment.
[0056]
As shown in FIGS. 6 and 7, the television receiver 4 is switched to the second mode (S11), and
the television receiver 4 and the headphones 8 are connected. As a result, audio such as a
broadcast program being viewed on the television receiver 4 is output from the headphone 8
(S12).
[0057]
In this state, when the user's hands approach or contact the ear pads 44 and 46 of the
headphone 8, respectively, detection signals are output from the proximity sensors 48 and 50
(S13). As a result, the device controller 66 of the headphone 8 determines that the user intends
to remove the headphone 8 from the head with both hands, and transmits a headphone
attachment / detachment signal to the television receiver 4 via the communication unit 64 (S14).
).
[0058]
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15
The receiving unit 28 of the television receiver 4 receives a switching instruction to switch the
connection destination of the television receiver 4 from the headphone 8 to the external speaker
6 based on the headphone attachment / detachment signal from the headphone 8 (S15). The
connection switching unit 30 of the television receiver 4 starts switching of the connection
destination of the television receiver 4 based on the switching instruction (S16), and transmits a
connection request signal to the external speaker 6 via the communication unit 20. To do (S17).
The connection request signal is, for example, data in which the device ID, the address, and the
passkey (PIN code) of the connection target device are associated with each other. As shown in
FIG. 7, at the timing when the switching of the connection destination of the television receiver 4
is started, the speaker control unit 32 of the television receiver 4 causes the built-in speaker 10
to fade in and output the sound (S18). ).
[0059]
In the present embodiment, as shown in FIG. 7, the device controller 66 of the headphone 8
continues the audio from the headphone 8 from the start of switching of the connection
destination of the television receiver 4 until the completion of the connection. Output. Instead of
such a configuration, the device controller 66 of the headphone 8 may stop the output of sound
from the headphone 8 at the timing when switching of the connection destination of the
television receiver 4 is started.
[0060]
The connection processing unit 24 of the television receiver 4 and the device controller 38 of the
external speaker 6 respectively perform processing for establishing a connection between the
television receiver 4 and the external speaker 6 (S19). Furthermore, the connection processing
unit 24 of the television receiver 4 and the device controller 66 of the headphone 8 respectively
perform processing for disconnecting the connection between the television receiver 4 and the
headphone 8 (S20). While the connection between the television receiver 4 and the external
speaker 6 is established, and the connection between the television receiver 4 and the
headphone 8 is disconnected, the connection destination of the television receiver 4 is switched.
It is completed (S21).
[0061]
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As shown in FIG. 7, at the timing when the switching of the connection destination of the
television receiver 4 is completed, the device controller 66 of the headphone 8 causes the output
of the audio from the headphone 8 to fade out and to stop (S22). Further, at the above-mentioned
timing, the device controller 38 of the external speaker 6 causes the external speaker 6 to fade
out the sound and output it (S23).
[0062]
Furthermore, the speaker control unit 32 of the television receiver 4 causes the built-in speaker
10 to fade out and output the sound until a predetermined time (for example, several seconds)
elapses from the above timing. Thus, the output of the sound from the built-in speaker 10 and
the output of the sound from the external speaker 6 are performed in parallel until the
predetermined time elapses after the switching is completed. The speaker control unit 32 stops
the output of the sound from the built-in speaker 10 (S25) at the timing when the predetermined
time has elapsed (S24).
[0063]
[Flow 2 of Switching Connection Destination of Television Receiver] Next, the flow of switching
the connection destination of the television receiver 4 from the external speaker 6 to the
headphone 8 will be described with reference to FIGS. 8 and 9. FIG. 8 is a sequence diagram
showing a flow of switching the connection destination of the television receiver from the
external speaker to the headphones in the audio output system according to the first
embodiment. FIG. 9 is a timing chart showing an operation of switching the connection
destination of the television receiver from the external speaker to the headphone in the audio
output system according to the first embodiment.
[0064]
As shown in FIGS. 8 and 9, the television receiver 4 is switched to the second mode (S31), and
the television receiver 4 and the external speaker 6 are connected. As a result, audio such as a
broadcast program being viewed on the television receiver 4 is output from the external speaker
6 (S32).
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17
[0065]
In this state, when the user removes the headphone 8 from the charging stand 12, a charging
stand attachment / detachment signal is output from the attachment / detachment sensor 18
(S33). Thereby, the receiving unit 28 of the television receiver 4 receives a switching instruction
to switch the connection destination of the television receiver 4 from the external speaker 6 to
the headphones 8 based on the charging stand attachment / detachment signal (S34). The
connection switching unit 30 of the television receiver 4 starts switching of the connection
destination of the television receiver 4 based on the switching instruction (S35), and transmits a
connection request signal to the headphones 8 via the communication unit 20. (S36).
[0066]
As shown in FIG. 9, at the timing when the switching of the connection destination of the
television receiver 4 is started, the speaker control unit 32 of the television receiver 4 causes the
built-in speaker 10 to fade in and output the sound (S37). ). Furthermore, at the above-mentioned
timing, the device controller 38 of the external speaker 6 causes the output of the audio from the
external speaker 6 to fade out and to stop (S38).
[0067]
The connection processing unit 24 of the television receiver 4 and the device controller 66 of the
headphone 8 respectively perform processing for establishing a connection between the
television receiver 4 and the headphone 8 (S39). Furthermore, the connection processing unit 24
of the television receiver 4 and the device controller 38 of the external speaker 6 respectively
perform processing for disconnecting the connection between the television receiver 4 and the
external speaker 6 (S40). While the connection between the television receiver 4 and the
headphone 8 is established, and the connection between the television receiver 4 and the
external speaker 6 is disconnected, the connection destination of the television receiver 4 is
switched. It is completed (S41).
[0068]
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18
As shown in FIG. 9, at the timing when the switching of the connection destination of the
television receiver 4 is completed, the device controller 66 of the headphone 8 causes the
headphone 8 to fade in and output the sound (S42). Furthermore, the speaker control unit 32 of
the television receiver 4 causes the built-in speaker 10 to fade out and output the sound until a
predetermined time (for example, several seconds) elapses from the above timing. Thus, the
output of the sound from the built-in speaker 10 and the output of the sound from the
headphone 8 are performed in parallel until the predetermined time elapses after the switching is
completed. The speaker control unit 32 stops the output of the sound from the built-in speaker
10 (S44) at the timing when the predetermined time has elapsed (S43).
[0069]
[Effects] Next, the effects obtained by the audio output system 2 of the present embodiment will
be described. When switching the connection destination of the television receiver 4, a time lag
of, for example, several seconds occurs between the timing when switching of the connection
destination starts and the timing when switching of the connection destination is completed. Note
that this time lag is the time required for transmission of the connection request signal, the time
required for processing for establishing connection between the television receiver 4 and the
external speaker 6 (or headphone 8) of the connection destination, etc. It is the one that
originates. As described above, the sound is output from the built-in speaker 10 of the television
receiver 4 at least from the start of the switching of the connection destination of the television
receiver 4 until the completion. As a result, when switching the connection destination of the
television receiver 4, it is possible to prevent the user from listening to the audio without
interrupting the output of the audio.
[0070]
Furthermore, when the connection destination of the television receiver 4 is switched from the
headphone 8 to the external speaker 6, the user may remove the headphone 8 from the head
immediately after the switching of the connection destination of the television receiver 4 starts.
Even in such a case, since the user can listen to the sound output from the built-in speaker 10 of
the television receiver 4, it is possible to effectively suppress the user from listening to the sound.
it can.
[0071]
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19
Second Embodiment Next, the configuration of an audio output system according to a second
embodiment will be described with reference to FIG. 2, FIG. 3, FIG. 5, and FIG. FIG. 10 is a
sequence diagram showing a flow of switching the connection destination of the television
receiver from the external speaker to the headphones in the audio output system according to
the second embodiment. In the present embodiment, the same components as those in the first
embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0072]
As shown in FIGS. 2, 3, 5 and 10, in the case where the connection destination of the television
receiver 4A is switched from the external speaker 6 to the headphone 8A, steps S31 to step are
performed as in the first embodiment. S42 is executed. Thereafter, when the proximity sensors
48 and 50 of the headphone 8A both change from the detection state to the non-detection state,
the device controller 66A of the headphone 8A determines that the user has worn the headphone
8A on his head with both hands, and the communication unit A mounting completion signal is
transmitted to the television receiver 4A via S. 64 (S51). The speaker control unit 32A of the host
controller 22A of the television receiver 4A stops the output of the audio from the built-in
speaker 10 while fading out based on the above-mentioned mounting completion signal (S52).
[0073]
Thus, even when the timing at which the user wears the headphones 8A on the head is later than
the timing at which the switching of the connection destination is completed, the user can
continue listening to the sound from the built-in speaker 10. As a result, it is possible to prevent
the user from listening to the voice.
[0074]
(Modifications) Although the audio output system and the audio output device according to the
first and second embodiments of the present invention have been described above, the present
invention is not limited to these embodiments. For example, the above embodiments may be
combined.
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[0075]
In each of the above-described embodiments, the audio output device is configured of the
television receiver 4 (4A). However, the present invention is not limited to this. For example, the
audio output device may be configured of an audio component, a personal computer or a
smartphone.
[0076]
In the above embodiments, the first external connection device and the second external
connection device are configured by the external speaker 6 and the headphone 8 (8A), but the
present invention is not limited to this, and may be configured by an earphone, for example. .
[0077]
In the above embodiments, the television receiver 4 (4A) and the external speaker 6 and the
headphones 8 (8A) are connected by Bluetooth, but the present invention is not limited to this,
and may be connected by a wireless system other than Bluetooth .
[0078]
In each of the above embodiments, the audio output from the built-in speaker 10 is stopped
while fading out at a timing when a predetermined time has elapsed since the switching of the
connection destination of the television receiver 4 (4A) is completed. It is not limited to this.
For example, the output of the sound from the built-in speaker 10 may be instantaneously
stopped at the timing when the switching of the connection destination of the television receiver
4 (4A) is completed.
[0079]
In each of the above embodiments, when the television receiver 4 (4A) and the headphone 8 (8A)
are connected, the connection switching unit 30 selects the television receiver 4 (4A) based on
the headphone attachment / detachment signal. ) Is switched from the headphone 8 (8A) to the
external speaker 6.
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Instead of such a configuration, for example, when the power of the external speaker 6 is
switched from off to on, the device controller 38 transmits the power on signal to the television
receiver 4 (the communication unit 36 (output unit)). It may be sent to 4A).
In this case, the connection switching unit 30 switches the connection destination of the
television receiver 4 (4A) from the headphone 8 (8A) to the external speaker 6 based on the
power on signal (switching instruction).
[0080]
In each of the above embodiments, the connection switching unit 30 sets the connection
destination of the television receiver 4 (4A) between the external speaker 6 and the headphone 8
(8A) based on the charging stand attachment / detachment signal or the headphone attachment /
detachment signal. It was configured to switch. Instead of such a configuration, for example,
when the user operates the remote controller of the television receiver 4 (4A), the connection
switching unit 30 is based on a signal (switching instruction) output from the remote controller.
The connection destination of the television receiver 4 (4A) may be switched between the
external speaker 6 and the headphone 8 (8A). Alternatively, for example, when a predetermined
time has passed, the connection switching unit 30 sets a television based on a signal (switching
instruction) output from a timer (not shown) built in the television receiver 4 (4A). The
connection destination of the television receiver 4 (4A) may be switched between the external
speaker 6 and the headphone 8 (8A).
[0081]
In each of the above embodiments, when the connection destination of the television receiver 4
(4A) is switched between the external speaker 6 and the headphone 8 (8A) in the second mode,
the switching of the connection destination is started. The sound was output from the built-in
speaker 10 until the switching is completed. For example, after the connection between the
television receiver 4 (4A) and the external speaker 6 or the headphone 8 (8A) is started when
switching from the first mode to the second mode, for example, instead of such a configuration.
The sound may be output from the built-in speaker 10 until the connection is completed.
[0082]
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(Other Modifications) Each of the above-mentioned devices specifically includes a
microprocessor, a read only memory (ROM), a random access memory (RAM), a hard disk drive, a
display unit, a keyboard, a mouse and the like. It may be configured as a computer system. A
computer program is stored in the RAM or the hard disk drive. Each device achieves its function
by the microprocessor operating according to the computer program. Here, the computer
program is configured by combining a plurality of instruction codes indicating instructions to the
computer in order to achieve a predetermined function.
[0083]
Furthermore, some or all of the components that configure each of the above-described devices
may be configured as one system LSI (Large Scale Integration: large scale integrated circuit). The
system LSI is a super-multifunctional LSI manufactured by integrating a plurality of component
parts on one chip, and more specifically, is a computer system configured including a
microprocessor, a ROM, a RAM and the like. . A computer program is stored in the RAM. The
system LSI achieves its functions by the microprocessor operating according to the computer
program.
[0084]
Furthermore, some or all of the components that make up each of the above-described devices
may be configured from an IC card or a single module that is removable from each device. The IC
card or module is a computer system including a microprocessor, a ROM, a RAM, and the like.
The IC card or module may include the above-described ultra-multifunctional LSI. The IC card or
module achieves its functions by the microprocessor operating according to the computer
program. This IC card or this module may be tamper resistant.
[0085]
Also, the present invention may be the method described above. Furthermore, the present
invention may be a computer program that realizes these methods by a computer, or may be a
digital signal composed of the computer program.
09-05-2019
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[0086]
Furthermore, the present invention provides a non-transitory recording medium that can read
the computer program or the digital signal from a computer, such as a flexible disk, hard disk,
CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD It may be recorded on a Blu-ray (registered
trademark) Disc), a semiconductor memory or the like. Further, the present invention may be the
digital signal recorded on these non-temporary recording media.
[0087]
In the present invention, the computer program or the digital signal may be transmitted via a
telecommunication line, a wireless or wired communication line, a network represented by the
Internet, data broadcasting, and the like.
[0088]
Further, the present invention may be a computer system comprising a microprocessor and a
memory, wherein the memory stores the computer program, and the microprocessor operates
according to the computer program.
[0089]
In addition, by recording and transferring the program or the digital signal to the non-temporary
recording medium, or by transferring the program or the digital signal via the network or the
like, another independent one can be obtained. It may be implemented by a computer system.
[0090]
The audio output device of the present invention can be applied to, for example, a television
receiver having a built-in speaker.
[0091]
2 audio output system 4, 4A television receiver 6 external speaker 8, 8A headphone 10 built-in
speaker 12 charging stand 14 cable 16, 60 charging terminal 18 detachable sensor 20, 36, 64
communication unit 22, 22A host controller 24 connection processing unit 26 mode switching
unit 28 reception unit 30 connection switching unit 32, 32A speaker control unit 34 speaker 38,
66, 66A device controller 40 R side housing 42 L side housing 44, 46 ear pad 48, 50 proximity
sensor 52 R side speaker 54 L side Speaker 56 Battery 58, 62 Operation Unit
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