JP2009038436

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DESCRIPTION JP2009038436
The present invention provides a wireless audio system, a communication device, and a program
capable of easily confirming the battery level of the entire wireless audio system. SOLUTION: A
receiving unit 30 measures its own battery remaining amount, transmits the measured value to a
transmitting unit 20, and the transmitting unit 20 measures its own battery remaining amount,
and the measured value and the received measurement. Display remaining battery level
information on the remaining battery level indicator 24 based on the value. [Fig. 1]
Wireless audio system, communication device, and program
[0001]
TECHNICAL FIELD The present invention relates to a wireless audio system, a communication
device, and a program for notifying a remaining battery level.
[0002]
2. Description of the Related Art Wireless audio systems including a plurality of audio devices
such as an audio source device and a speaker and performing wireless communication among
the audio devices are in widespread use.
In such a wireless audio system, it is known that a battery is used as a power source of the
communication unit of each audio device, and a battery remaining amount indicator indicating
the battery remaining amount of the battery is provided in each audio device or the
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communication unit of the audio device. It is done.
[0003]
As an example of a wireless audio system using a battery, Patent Document 1 discloses a
technology for a battery-powered mobile audio output device. JP 2005-79614 A
[0004]
However, in the above-described conventional technology, in order to check the remaining
battery level of the entire wireless audio system, it is necessary to check the remaining battery
level indicator provided in the communication unit or the like of each audio device. It was
difficult to understand the proper charging timing.
[0005]
An object of the present invention is to provide a wireless audio system, a communication device,
and a program capable of easily confirming the battery level of the entire wireless audio system.
[0006]
The invention according to claim 1 is a wireless audio system for wirelessly transmitting an audio
signal between one audio device provided with a battery-powered communication device and
another audio device, wherein the communication of the one audio device is performed. The
device measures the remaining battery level of the battery power source, and displays the
remaining battery capacity information on the display unit based on the measured value and the
remaining battery level measurement value received from the communication device of the other
audio device. The communication device of the other audio device includes a control portion that
measures the remaining battery level of the communication device and transmits the measured
value to the communication device of the one audio device. I assume.
[0007]
The invention according to claim 2 is the wireless audio system according to claim 1, wherein
one of the one or the other audio devices is an audio source device, and the other is an audio
output device, and the communication of the audio source device The control unit included in the
device continuously transmits the audio signal to the communication device of the audio output
device, and measures the battery residual amount of its own or the battery residual amount
received from the communication device of the audio output device. When the value reaches a
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predetermined value, the audio signal being transmitted to the communication device of the
audio output device is intermittently transmitted.
[0008]
The invention according to claim 3 is the wireless audio system according to claim 2, wherein the
audio signal to be intermittently transmitted to the communication device of the audio output
device by the control unit provided in the communication device of the audio source device is
any of It is characterized in that it is interrupted at different rhythms depending on whether the
measured value of the remaining battery capacity of the communication device has reached the
predetermined value.
[0009]
The invention according to claim 4 is a communication device which is connectable to an audio
device and operates on battery power, which measures the remaining battery power of the
battery power, and transmits the measured value to another communication device. It is
characterized by including a control unit for transmitting.
[0010]
The invention according to claim 5 is a communication device which is connectable to an audio
device and which operates with battery power, comprising: a display unit; measuring the
remaining amount of the battery power; And a controller configured to cause the display unit to
display battery remaining amount information based on a battery remaining amount
measurement value received from the communication device.
[0011]
According to a sixth aspect of the present invention, in the program, a computer of a
communication device which is connectable to an audio device and operates on battery power
measures the remaining battery power of the battery power, and transmits the measured value to
another communication device. It is characterized in that it functions as a control means for
transmitting.
[0012]
According to the present invention, it is possible to provide a wireless audio system, a
communication device, and a program capable of easily confirming the battery level of the entire
wireless audio system.
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[0013]
Hereinafter, a preferred embodiment of the present invention will be described with reference to
the drawings.
However, the scope of the invention is not limited to this embodiment.
[0014]
[Configuration] First, the configuration will be described.
FIG. 1 shows an outline of the configuration of the wireless audio system.
The wireless audio system 1 includes an audio source device 10 and a stereo system 40 as an
audio device, transmits and receives various signals by wireless communication between the
audio devices, and performs audio reproduction and the like.
[0015]
As the audio source device 10, ohmic audio, car audio, portable audio or the like is used.
The audio source device 10 includes a transmission unit 20 connected externally or internally.
[0016]
The transmission unit 20 is a communication device connected to the audio source device 10,
and transmits an audio signal or the like input from the audio source device 10 on a carrier wave.
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The transmission unit 20 uses a battery as a power source, and as a display unit that displays
battery remaining amount information based on the measured value of the battery remaining
amount of the battery and the measured value of the remaining battery amount received from
the receiving unit 30 A remaining amount indicator 24 is provided.
[0017]
The receiving unit 30 is a communication device connected to the stereo system 40, receives a
carrier wave transmitted from the transmitting unit 20, carrying an audio signal and the like, and
outputs the audio signal to the stereo system 40.
The receiving unit 30 uses a battery as a power source, and transmits the measured value of the
battery remaining amount of the battery on a carrier wave to the transmitting unit 20.
[0018]
The stereo system 40 is an audio output device that outputs an audio signal input from the
receiving unit 30 as a sound wave.
The stereo system 40 includes an amplifier, a speaker, and the like, and is configured to include a
receiving unit 30 connected externally or internally.
[0019]
Next, FIG. 2 shows an example of the configuration of the transmission unit 20.
The transmission unit 20 is configured to include a wireless audio processor 21, a battery 22, a
power control unit 23, and a battery remaining amount indicator 24.
[0020]
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The wireless audio processor 21 performs processing of measuring the remaining amount of the
battery 22 which is a power supply of the transmission unit 20, processing of inputting an audio
signal from the audio source device 10 and transmitting the same.
The wireless audio processor 21 displays the battery remaining amount information on the
battery remaining amount indicator 24 based on the measurement value of the battery
remaining amount of the battery 22 and the measurement value of the battery remaining amount
received by the wireless audio processor 21 from another communication device. Do the
processing.
[0021]
The wireless audio processor 21 includes an audio interface 211, an audio processor 212, a
modem 213, a radio frequency (RF) transceiver 214, a central processing unit (CPU) 216, a
program memory 217, a clock synthesizer 218, a phase locked loop (PLL) 219, X ̀tal (quartz
crystal) 220 is comprised.
[0022]
The audio interface 211 is an interface for performing input and output of audio signals and the
like with an external audio device.
[0023]
The audio processor 212 is a processor such as a DSP (Digital Signal Processor).
The audio processor 212 performs various digital signal processing on the audio signal input
from the audio interface 211 to modulate it into a specific signal format, or demodulates the
audio signal input from the modem 213.
[0024]
The modem 213 modulates the signal input from the audio processor 212 into a signal format
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for carrying on a carrier wave and outputs the modulated signal to the RF transceiver 214.
Further, it demodulates the signal input from the RF transceiver 214 and outputs the signal to
the audio processor 212.
[0025]
The RF transceiver 214 places a signal input from the modem 213 on a carrier wave and outputs
the carrier wave to the antenna 215 for transmission. Further, the signal is restored from the
carrier wave received by the antenna 215, and the signal is output to the modem 213.
[0026]
The CPU 216 measures the remaining battery level of the battery 22 based on the control
program stored in the program memory 217 or the like and the value input as the voltage value
v of the battery 22, and the power required by the power supply controller 23 for the
transmission unit 20. Control such as adjustment of power supply and stop of power supply. In
addition, central control of each part of the wireless audio processor 21 is performed.
[0027]
The program memory 217 is a memory for storing a control program and the like for controlling
each unit such as the wireless audio processor 21 and the power control unit 23.
[0028]
The clock synthesizer 218 is a device that processes an externally input clock signal.
The PLL 219 is a circuit that generates a clock required for each part of the wireless audio
processor 21 based on the external clock, separately from the clock input from the outside. X̀ tal
220 is an oscillator of an externally connected clock.
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[0029]
The power control unit 23 controls the supply of the power input from the battery 22 to each
unit constituting the transmission unit 20.
[0030]
The configuration of the receiving unit 30 is the same as the configuration of the transmitting
unit 20.
However, the processing performed by the wireless audio processor 21 is different from that of
the transmission unit 20. The wireless audio processor 21 of the receiving unit 30 performs
processing of receiving and outputting an audio signal, processing of measuring the remaining
amount of the battery 22, processing of transmitting the measured value to the transmitting unit
20, and the like.
[0031]
[Operation] Next, the operation will be described. In FIG. 3, when the transmission unit 20 is
provided with the battery remaining amount indicator 24 and the measured value of the battery
remaining amount information is displayed on the battery remaining amount indicator 24 based
on the battery remaining amounts of the transmission unit 20 and the receiving unit 30,
transmission The processes performed between the unit 20 and the receiving unit 30 are shown
in chronological order. The control of the processing is performed by the CPU 216 provided in
each of the transmission unit 20 and the reception unit 30.
[0032]
First, each of the transmission unit 20 and the reception unit 30 measures the remaining battery
level of the battery 22 provided therein (steps S1 and S4). Next, the receiving unit 30 transmits
the measurement value to the transmitting unit 20 (step S2). Next, the transmitting unit 20
receives the battery remaining amount measurement value transmitted from the receiving unit
30, notifies the transmitting unit 20 that the reception has been performed (step S3), and
receives the received battery remaining amount measuring value and step The battery remaining
amount information is updated and displayed on the battery remaining amount indicator 24
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based on the battery remaining amount measurement value measured in S4 (step S5).
[0033]
As a modification of the aspect illustrated in FIGS. 1 to 3, the receiving unit 30 may include the
battery remaining amount indicator 24, and the transmitting unit 20 may transmit the
measurement value of the battery remaining amount to the receiving unit 30.
[0034]
In FIG. 4, as the modification, the receiving unit 30 is provided with the battery remaining
amount indicator 24, and the battery remaining amount information is displayed on the battery
remaining amount indicator 24 based on the measurement values of the battery remaining
amounts of the transmitting unit 20 and the receiving unit 30. In the latter case, the processing
performed between the transmitting unit 20 and the receiving unit 30 is shown in chronological
order.
The control of the processing is performed by the CPU 216 provided in each of the transmission
unit 20 and the reception unit 30.
[0035]
First, the transmission unit 20 and the reception unit 30 each measure the remaining battery
capacity of the battery 22 provided therein (steps S11 and S14). Next, the transmission unit 20
transmits the measurement value to the reception unit 30 (step S12). Next, the receiving unit 30
receives the battery remaining amount measurement value transmitted from the transmitting
unit 20, notifies the receiving unit 30 that the receiving has been performed (step S13), and the
received battery remaining amount measuring value and step The battery remaining amount
information is updated and displayed on the battery remaining amount indicator 24 based on the
battery remaining amount measurement value measured in S14 (step S15).
[0036]
As described above, each communication device is displayed by displaying the battery remaining
amount information in the battery remaining amount indicator 24 provided in the transmitting
unit 20 or the receiving unit 30 based on the measured value of the battery remaining amount of
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the transmitting unit 20 and the receiving unit 30. The battery remaining amount of the entire
wireless audio system 1 can be easily confirmed without confirming the battery remaining
amount indicator and the like provided in the like.
[0037]
Another Embodiment Next, another embodiment will be described.
FIG. 5 shows an example in which the wireless audio system includes a plurality of receiving
units, and an audio output device as an audio device and a receiving unit as a communication
device share a battery as a power supply.
[0038]
The wireless audio system 2 is a two-channel audio system configured to include an audio source
device 10, a transmission unit 20, an Rch (right channel) audio output device 80, and an Lch (left
channel) audio output device 90.
[0039]
The audio source device 10 and the transmission unit 20 have the same configuration as that of
FIG.
The Rch audio output device 80 is an audio output device provided with a receiving unit 81, an
amplifier 82, a speaker 83, an antenna 84, a battery 85, and the like. Also, the receiving unit 81
is configured to include a wireless audio processor 811 and the like. A battery 85 is a power
supply of the entire Rch audio output device 80.
[0040]
The Lch audio output device 90 is an audio output device provided with a receiving unit 91, an
amplifier 92, a speaker 93, an antenna 94, a battery 95, and the like. Also, the receiving unit 91
is configured to include the wireless audio processor 911 and the like. A battery 95 is a power
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supply of the entire Lch audio output device 90.
[0041]
In the wireless audio system 2 as described above, the remaining battery level of the battery 85
of the Rch audio output device 80 is measured by the wireless audio processor 811 and the
measured value is transmitted to the transmission unit 20 via the antenna 84 etc. The remaining
battery level of the battery 95 of the output device 90 is measured by the wireless audio
processor 911, and the measured value is transmitted to the transmission unit 20 via the
antenna 94 and the like. Note that the Rch audio output device 80 and the Lch audio output
device 90 transmit the ID value as well as transmitting the ID information or transmit the
measurement value together with the measurement value of the remaining battery capacity so as
to uniquely identify itself. Are different from other communication devices.
[0042]
Then, the transmission unit 20 transmits the battery remaining amount information based on the
received measurement value of the battery remaining amount and the measurement value of the
battery remaining amount of the battery provided in the self transmitted from the Rch audio
output device 80 and the Lch audio output device 90. Displayed on the battery level indicator 24.
In addition, the display is associated with each speaker and the transmission unit 20 based on
the ID information transmitted from the Rch audio output device 80 and the Lch audio output
device 90, and the remaining battery based on the measured value of the remaining battery
capacity. Volume information is displayed.
[0043]
In addition, the measuring method of a battery remaining charge, the transmission / reception
method of the said measured value, etc. are the same as the method demonstrated by the abovementioned Example.
[0044]
As described above, the measured values of the battery remaining amount of the battery 85 of
the Rch audio output device 80 and the battery 95 of the Lch audio output device 90 are
transmitted to the transmission unit 20, and the transmission unit 20 receives the measured
value of the remaining battery amount. And the user of the wireless audio system 2 only
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confirms the battery remaining capacity indicator 24 by displaying the battery remaining
capacity information on the battery remaining capacity indicator 24 based on the measured
value of the battery remaining capacity of the battery provided in the transmission unit 20 The
battery level of the entire wireless audio system 2 can be easily confirmed.
[0045]
Also, as a modification of the wireless audio system configured as shown in FIG. 1 or FIG. 5, the
measured value of the battery remaining amount of the battery of the receiving unit or the
transmitting unit received by the transmitting unit reaches a predetermined amount. When the
transmitting unit determines that the remaining amount is small, the transmitting unit is output
from a speaker such as a stereo system by intermittently transmitting an audio signal that has
been continuously transmitted to the receiving unit. The sound may be intermittent.
[0046]
Also, as a further modification of this modification, for example, based on the ID information
transmitted from the Rch audio output device 80 and the Lch audio output device 90 described
above, which communication unit (transmission unit 20, reception Determine whether the
remaining battery capacity of unit 81 or receiver unit 91 etc. is low, and change the rhythm in
which the transmission of the audio signal is interrupted according to the result of the judgment,
and change the rhythm in which the output sound from the speaker is interrupted It is good as
well.
[0047]
It should be noted that the determination of the remaining battery level and the control of the
process of transmitting audio signals intermittently by the transmission unit in these
modifications are controlled by the CPU 216 based on the program stored in the program
memory 217 provided in the transmission unit 20, for example. To be done.
[0048]
According to such a modification, the user of the wireless audio system can easily grasp that the
remaining battery capacity is low by listening to the output sound which has become
intermittent.
In addition, by changing the rhythm in which the output sound is interrupted depending on
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which communication device's remaining battery power is low, it is easy to grasp which speaker
or communication unit's remaining battery power is low. Can.
[0049]
Further, the wireless audio system 2 is not limited to 2ch, and as a modification, a plurality of
audio output devices may be further provided.
For example, in the 5.1ch audio system, transmission and reception of the battery residual
amount of the battery residual amount measurement value may be performed between the
communication device provided in the audio source device and the communication devices
provided in the plurality of audio output devices.
[0050]
[Effects] As described above, the receiving unit 30 measures its own battery remaining amount,
transmits the measured value to the transmitting unit 20, and the transmitting unit 20 measures
its own battery remaining amount, and the measured value And by displaying the remaining
battery level information on the remaining battery level indicator 24 based on the received
measured value, the entire wireless audio system 1 can be checked without checking the
remaining battery level indicator etc. provided in each communication device etc. You can easily
check the remaining battery level.
[0051]
Also, as in the wireless audio system shown in FIG. 5, the measurement values of the battery
remaining amount of the battery 85 of the Rch audio output device 80 and the battery 95 of the
Lch audio output device 90 are transmitted to the transmission unit 20, and the transmission
unit 20 receives The user of the wireless audio system 2 can display the battery residual amount
information on the battery residual amount indicator 24 based on the measured value of the
battery residual amount and the measured value of the battery residual amount of the battery
provided in the transmission unit 20. The battery level of the entire wireless audio system 2 can
be easily checked simply by checking the battery level indicator 24.
[0052]
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In addition, the user of the wireless audio system can easily grasp that the remaining battery
level is low by listening to the intermittent output sound.
In addition, by changing the rhythm in which the output sound is interrupted depending on
which communication device's remaining battery power is low, it is easy to grasp which speaker
or communication unit's remaining battery power is low. Can.
[0053]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a configuration outline of a
wireless audio system.
It is a block diagram which shows the structure of a communication apparatus.
FIG. 7 is a diagram showing the interaction between the transmitting unit and the receiving unit
in time series.
FIG. 7 is a diagram showing the interaction between the transmitting unit and the receiving unit
in time series.
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a configuration outline of a
wireless audio system.
Explanation of sign
[0054]
1, 2 Wireless Audio System 10 Audio Source Device 20 Transmission Unit 21, 811, 911 Wireless
Audio Processor 22, 85, 95 Battery 23 Power Control Unit 24 Battery Level Indicator 30, 81, 91
Reception Unit 40 Stereo System 80 Rch Audio Output Device 82, 92 Amplifier 83, 93 Speaker
84, 94, 215 Antenna 90 Lch Audio Output Device 211 Audio Interface 212 Audio Processor 213
Modem 214 RF Transceiver 216 CPU 217 Program Memory 218 Clock Synthesizer 219 PLL
220 X ̀tal
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