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JP3143722

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP3143722
Abstract: A video-audio player having a wireless audio transmission function and a wireless
earphone and wireless audio transmission function and a wireless audio transmission module
thereof. An earphone storage tank for storing and electrically connecting a wireless earphone
and transmitting an electric potential signal, an audio processing module for outputting a sound
source signal, and the sound source signal are received, and the electric potential signal is
generated. Are connected to the audio switching element 111 for switching the output path of
the sound source signal, and are connected to the audio switching element 111 by radio, and are
connected to the wireless earphone 8 by wireless, and based on switching by the audio switching
element 111; Wireless audio transmission having a control element 112 for outputting the sound
source signal from the earphone 8 and a system sound source interface 13 connected to the
audio switching element 111 and outputting the sound source signal based on switching by the
audio switching element 111 A module 11 is provided. [Selected figure] Figure 1
Video-audio player with wireless audio transmission function and its wireless audio transmission
module
[0001]
The present invention relates to a video-audio player, and more particularly to a video-audio
player with wireless audio transmission function and a wireless audio transmission module
thereof.
[0002]
09-05-2019
1
With the rapid development of video-audio multimedia technology, the technology and type of
video-audio player is also continuously advancing and growing (e.g. TV and HI-FI audio,
multimedia player and computer multimedia center etc).
Also, in designing, many kinds of video-audio formats and additional functions are supported. As
a result, consumers can enjoy better visual and auditory sensory qualities.
[0003]
When people use a video-audio player, if the audio volume is unexpectedly high to enjoy a sense
of presence, it will cause trouble to the next house. In order to solve the above problem, there is a
method for the user to enjoy the hearing effect by using the wired earphone. However, such a
method can prevent others from bothering, but since it is a wired connection, the user is
restricted in the range of action by the length of the connection line of the earphone.
[0004]
With the growth of wireless transmission technology, many products use wireless transmission
technology. At this time, the user can solve the above problem by using, for example, a Bluetooth
wireless earphone and a Bluetooth receiver / transmitter. However, in practical use, the user's
hand must connect the Bluetooth receiver / transmitter to the video-audio player and use it
paired with the Bluetooth wireless earphone. This method is inconvenient for the user in
practical and storage.
[0005]
In addition, since the sound source output paths of the wireless earphone and the video-audio
player are unique to each other, when the user listens via the wireless earphone, first, the
speaker volume of the video-audio player is adjusted to mute. It can be made not to affect the
listening effect of the wireless earphone. The various inconvenient factors as described above
reduce the user's willingness to purchase a wireless earphone or wireless receiver / transmitter.
[0006]
09-05-2019
2
To solve the above problems, the present invention integrates a wireless audio transmission
module and a video-audio player so that the video-audio player has a wireless audio transmission
function and can wirelessly transmit wireless earphones and wireless audio. An object of the
present invention is to provide a video-audio player with an audio transmission function and its
wireless audio transmission module. Also, due to the design of the wireless audio transmission
module, when the user houses the wireless earphone and the wireless earphone is electrically
connected, the audio output path is switched to become the speaker output, while when the user
takes out the wireless earphone, It is an object of the present invention to provide a video-audio
player that performs control of switching an output path to wireless audio transmission.
[0007]
In order to achieve the above object, the video-audio player according to the present invention
comprises an earphone housing, an audio processing module, a wireless audio transmission
module and a system sound source interface. The wireless earphone is accommodated and
electrically connected, and the earphone storage tank transmits a potential signal, and the audio
processing module outputs a sound source signal. Also, the wireless audio transmission module
further comprises an audio switching element and a control element. The audio switching
element receives the sound source signal, and switches the output path of the sound source
signal based on the potential signal. The control element is connected to the audio switching
element, and the wireless earphone is wirelessly connected to output the sound source signal
from the wireless earphone based on the switching of the audio switching element. The system
sound source interface is connected to an audio switching element, and outputs the sound source
signal based on the switching of the audio switching element.
[0008]
According to another aspect of the present invention, there is provided a video-audio player for
wireless audio transmission comprising a main body and a wireless audio transmission module.
The main body includes a system sound source interface and an audio processing module, and
the audio processing module outputs a sound source signal to the system sound source interface.
The wireless audio transmission module is installed outside the main body, is inserted into the
system sound source interface, and further includes an earphone storage tank, an audio
switching element, a control element and a module sound source interface. In addition, the
earphone storage tank stores the wireless earphones and is electrically connected to transmit a
09-05-2019
3
potential signal, the audio switching element receives the sound source signal, and the sound
source signal is received based on the potential signal. Switch the output path of Further, the
control element is connected to the audio switching element, is wirelessly connected to the
wireless earphone, and outputs the sound source signal from the wireless earphone based on the
switching of the audio switching element. The audio switching device is also connected to the
audio switching device, and outputs the sound source signal based on the switching of the audio
switching device.
[0009]
Also, to achieve the above object, a wireless audio transmission module according to the present
invention comprises a control element, a signal connection interface and an audio switching
element, is applied to a video-audio player, and is a sound source output from the video-audio
player. It receives a signal and performs wireless audio transmission to the wireless earphone.
Further, the control element is wirelessly connected to the wireless earphone, and outputs the
sound source signal from the wireless earphone. The signal connection interface is electrically
connected to the earphone storage tank to transmit a potential signal. Further, the audio
switching element receives the sound source signal, the control element and the speaker are
connected, and the output path of the sound source signal is switched based on the potential
signal. Further, when the wireless earphone is stored in the earphone storage tank, the audio
switching element is switched to be connected to the speaker, and when the wireless earphone is
not stored in the earphone storage tank, the audio switching element is connected. It is switched
to connect to the control element so that the source signal can be output on different output
paths.
[0010]
Thus, the video-audio player can be provided with a wireless audio transmission function, and the
output path of the video-audio player can be switched easily depending on whether or not the
wireless earphone is housed.
[0011]
The features and technical contents of the present invention will be described in detail below
with reference to the drawings, but the present invention is not limited by them.
[0012]
09-05-2019
4
The present invention mainly integrates the wireless audio transmission module and the videoaudio player so that the video-audio player can not only output the audio from the originally
connected speakers, but also the audio from the wirelessly connected wireless earphone Can be
output.
Also, different output paths can be easily switched according to the connection state of the
wireless earphone, and the user can switch the output paths based on their own usage habits.
In addition, according to the wireless audio transmission module according to the present
invention, for example, it can be designed using the standards of Bluetooth technology, far
infrared technology or radio frequency technology (RF).
[0013]
FIG. 1 is a block diagram showing a first embodiment of a video-audio player with a wireless
audio transmission function according to the present invention. The illustrated video-audio
player 1 comprises a wireless audio transmission module 11, an audio processing module 12, a
system sound source interface 13 and an earphone housing 14. Also, in the present embodiment,
the wireless audio transmission module 11 is incorporated in the video-audio player 1.
[0014]
Further, when the wireless earphone 8 is stored, the earphone storage tank 14 is electrically
connected to the wireless earphone 8 to generate a potential signal. The audio processing
module 12 is, for example, a processing module that performs audio processing and
reproduction in the video-audio player 1, that is, outputs the sound source signal after
processing. The system sound source interface 13 is, for example, a sound source hole (audio
output terminal), whereby the speaker 9 is connected to the video-audio player 1 and the sound
source signal can be output.
[0015]
09-05-2019
5
The audio processing module 12 and the earphone storage tank 14 are connected to the wireless
audio transmission module 11, and further, the audio switching element 111 and the control
element 112, the signal connection interface 113, the power supply circuit 114, the antenna
module 115, and the storage element 116. Equipped with The control element 112 is connected
to the antenna module 115 and is wirelessly connected to the wireless earphone 8 via the
antenna module 115. The signal connection interface 113 is connected to the earphone storage
tank 14 to transmit the potential signal. Further, the audio switching element 111 is connected to
the control element 112 and the system sound source interface 13, receives the sound source
signal, and switches the output path of the sound source signal based on the potential signal. In
other words, the audio switching element 111 switches the output path based on the potential
signal, whereby the control element 112 outputs the sound source signal from the wireless
earphone 8 or the sound source from the speaker 9 via the system sound source interface 13.
Control the output of the signal.
[0016]
Further, in the present embodiment, the potential signal transmitted by the earphone storage
tank 14 is actually a potential signal formed depending on whether or not the wireless earphone
8 is stored in the earphone storage tank 14. For example, in practical design, the wireless
earphones 8 generally have their own power supply (high potential). Therefore, when the
wireless earphone 8 is stored in the earphone storage tank 14 (the stored and connected state is
not shown), it indicates that the user is not currently using the wireless earphone 8, and the
earphone storage tank 14 The high potential signal supplied by the wireless earphone 8 is
transmitted to the audio switching element 111 by contacting with the unique power source of
the wireless earphone 8, and the audio switching element 111 is switched to be connected to the
system sound source interface 13 The sound source signal is output from 9.
[0017]
On the contrary, when the wireless earphone 8 is not stored in the earphone storage tank 14, it
indicates that the user is now listening using the wireless earphone 8, so the low potential signal
from the earphone storage tank 14, the audio The signal is transmitted to the switching element
111, whereby the audio switching element 111 is switched to be connected to the control
element 112, and is outputted from the wireless earphone 8. Further, the low potential signal
may be realized by a pull low resistance (Pull Low) circuit in actual design, which can prevent the
low potential signal from becoming unstable due to signal interference.
09-05-2019
6
[0018]
Also, the power supply circuit 114 mainly receives the supplied power supplied by the videoaudio player 1 and generates a power. Further, when the wireless earphone 8 is connected to the
signal connection interface 113 and stored in the earphone storage tank 14, the power can be
supplied to the wireless earphone 8. The wireless earphone 8 may not only have a design having
a unique power supply as described above, but may further include a charging circuit (not
shown), whereby the earphone battery of the wireless earphone 8 receives the power supply.
(Not shown) can be charged. Also, the storage element 116 provided by the wireless audio
transmission module 11 stores, for example, a firmware program, and is provided for access
when the control element 112 is activated.
[0019]
FIG. 2 is a block diagram showing a second embodiment of a video-audio player with a wireless
audio transmission function according to the present invention. As shown, the operating
principle of this embodiment is substantially the same as the first embodiment, the difference
being the display of the video-audio player hardware. In the present embodiment, the wireless
audio transmission module 21 is installed outside the main body 20 of the video-audio player.
[0020]
The body 20 of the video-audio player comprises an audio processing module 22 and a system
sound source interface 23 (for example an audio output terminal). Further, the audio processing
module 22 similarly outputs the sound source signal to the system sound source interface 23.
The wireless audio transmission module 21 is inserted into the system sound source interface 23
and receives the sound source signal output from the audio processing module 22.
[0021]
Further, the wireless audio transmission module 21 performs wireless audio transmission with
the wireless earphone 8, and further, the audio switching element 211 and the control element
212, the signal connection interface 213, the power interface 214, the antenna module 215, the
09-05-2019
7
storage element 216, A module battery element 217, a module sound source interface 218 and
an earphone housing 219 are provided. Also, the control element 212 is connected to the
antenna module 215, and is wirelessly connected to the wireless earphone 8 via the antenna
module 215. The module sound source interface 218 is further connected to the speaker 9, and
the earphone storage tank 219 similarly accommodates and electrically connects the wireless
earphone 8 when the user does not use the wireless earphone 8. Transmit the signal.
[0022]
The control element 212 and the module sound source interface 218 are connected to the audio
switching element 211, and the audio switching element 211 receives the sound source signal
and switches the output path of the sound source signal based on the potential signal. Thereby,
the audio switching element 211 switches the output path based on the potential signal, and the
control element 212 outputs the sound source signal from the wireless earphone 8 or the sound
source signal from the speaker 9 through the module sound source interface 218. Can be output.
[0023]
The signal connection interface 213 is connected between the earphone storage tank 219 and
the audio switching element 211, and supplies the potential signal transmitted from the
earphone storage tank 219 to the audio switching element 211. Also, the transmitted potential
signal is actually a potential signal formed depending on whether the wireless earphone 8 is
stored in the earphone storage tank 219 or not. The definition of the potential signal has already
been described by way of example in the first embodiment, and therefore redundant description
will be omitted. As described above, the external design described in the present embodiment
achieves the purpose of switching the output path in the same manner.
[0024]
Further, since the wireless audio transmission module 21 is external to the main body, the
module battery element 217 is provided as a unique power source, and is provided to operate
the wireless audio transmission module 21. Further, the power supply interface 214 is, for
example, a DC power supply connection interface (DC connector), receives the commercial
frequency when the power of the module battery element 217 is exhausted, converts the power
09-05-2019
8
and outputs it, thereby a wireless audio transmission module It can be used as an operating
power source for 21. Furthermore, the control element 212 further charges the module battery
element 217 by receiving the power converted by the power supply interface 214 when the
charging module 2121 is designed and the power supply interface 214 is connected to the
commercial frequency. be able to.
[0025]
The power supply interface 214 is further connected to the signal connection interface 213, and
supplies the power to the wireless earphone 8 via the signal connection interface 213 and the
earphone storage tank 219. In addition, the wireless earphone 8 is further provided with a
charging circuit (not shown), and when the wireless earphone 8 is stored in the earphone storage
tank 219, the earphone battery of the wireless earphone 8 receives the power directly. (Not
shown) can be charged.
[0026]
Further, when the main body 20 of the video-audio player is further provided with a storage tank
(not shown) and the wireless audio transmission module 21 is inserted into the system sound
source interface 23 and externally connected to the main body 20, , Stored in the storage tank.
This improves the aesthetics and saves the use of the external space.
[0027]
Furthermore, FIG. 3 is a circuit schematic diagram of an embodiment of the audio switching
element used in the present invention. As shown, the audio switching element has two controllers
U1 and U2, which respectively process the sound sources of the left and right acoustic
communication channels.
[0028]
The connector CON1 receives and transmits the sound source signal (signal source) output from
the sound source processing module. The connector CON2 receives the potential signal
09-05-2019
9
transmitted from the signal connection interface. The connector CON3 is a further output path of
the sound source signal, the control element is connected, the connector CON4 is a further
output path of the sound source signal, and the speaker is connected via the sound source
interface. Thereby, the controllers U1 and U2 switch different output paths according to the
potential signal transmitted from the connector CON2.
[0029]
When the user uses the wireless earphone, the wireless earphone is taken out of the earphone
storage tank, whereby the potential signal received by the connector CON2 belongs to the low
potential signal. Also, in the circuit design, a resistor R2 for grounding is further designed to
ensure that the controllers U1, U2 receive a low potential signal. Thereby, the controllers U1 and
U2 switch to connect to the connector CON3 and transmit the sound source signal received from
the connector CON1 to the control element, so that the user can hear the sound source signal
from the wireless earphone it can.
[0030]
When the user does not use the wireless earphone, that is, the wireless earphone is stored in the
earphone storage tank, and the connector CON2 receives the high potential signal from the
wireless earphone. As a result, the controllers U1 and U2 switch to connect to the connector
CON4, transmit the sound source signal received from the connector CON1 to the sound source
interface, and thus output the sound source signal from the speaker connected to the sound
source interface Do.
[0031]
In addition, each connector used in the above circuit diagram and the like is for the purpose of
description, and a skilled person who understands the present technology well may connect the
circuit directly by wiring or another method, and is limited. It is not something to be done.
[0032]
FIGS. 4 (a) and 4 (b) are application concept diagrams of a video-audio player with a wireless
audio transmission function according to the present invention.
09-05-2019
10
In the present embodiment, the video-audio player 1 will be described by taking a television as
an example, and the wireless audio transmission module 11 is realized by a built-in design.
[0033]
As shown in FIG. 4A, when the user uses the wireless earphones 8, the wireless earphones 8 are
taken out from the earphone storage tank 14, whereby the sound source signal reproduced by
the video-audio player 1 is the wireless earphones 8. Audio is output, and the audio output from
the speaker 9 connected to the video-audio player 1 is stopped. Also, for example, if Bluetooth
wireless transmission technology is used, due to the characteristics of Bluetooth technology,
when the user listens to the sound source signal reproduced by the video-audio player 1 using
the Bluetooth earphone, the Bluetooth earphone also uses Bluetooth connection. It can be
switched and connected to other Bluetooth devices (e.g. mobile phones). Also, if another
Bluetooth device is not used, it can be switched to the video-audio player 1 again to hear the
sound source signal reproduced thereby.
[0034]
As shown in FIG. 4 (b), when the user stores the wireless earphone 8 in the earphone storage
tank 14, the sound source signal reproduced by the video-audio player 1 is automatically
switched to output the sound from the speaker 9. At this time, the wireless earphones 8 do not
operate.
[0035]
As described above, the present invention integrates the wireless audio transmission module and
the video-audio player by the simplified circuit design to provide the video-audio player with the
wireless audio transmission function, and hence the wireless earphone and the wireless Audio
transmission can be performed.
Also, the video-audio player switches different audio output paths directly and automatically
based on the connection state of the wireless earphones. As a result, the video-audio player not
only has a wireless audio transmission function, but also the output path of the video-audio
player depending on whether or not the wireless earphone is housed without changing the usage
09-05-2019
11
habit of the user. Control switching.
[0036]
The above is a better embodiment of the present invention, and the present invention is not
limited thereby, and equivalent changes or modifications made based on the contents of claims
and description of the invention related to the present invention. All fall within the scope of the
invention registration claims of the present invention.
[0037]
FIG. 1 is a block diagram of a first embodiment of a video-audio player with wireless audio
transmission function according to the present invention;
FIG. 5 is a block diagram of a second embodiment of a video-audio player with wireless audio
transmission function according to the present invention; FIG. 1 is a circuit schematic diagram of
an embodiment of an audio switching element used in the present invention. FIG. 1 is an
application conceptual view of a video-audio player with a wireless audio transmission function
according to the present invention.
Explanation of sign
[0038]
1 и и и и и и Video-audio player 11, 21 и и и wireless audio transmission module 111, 211 и и и audio
switching element 112, 212 и и и control element 113, 213 и и и Connection interface 114 и и и и и и
Power supply circuit 115, 215 и и и Antenna module 116, 216 и и и Storage element 12, 22 и и и
Audio processing module 13, 23 и и и System sound source interface 14,219 .... earphone storage
compartment 20 ........ body 2121 ...... charging module 214 ....... power supply interface 217 .......
battery module element 218 ....... module sound source interface 8 ......... wireless earphone 9 ..... ...
speaker CON1, CON2, CON3, CON4 иии connector R2 ииииииии resistance U1, U2 иииии controller
09-05-2019
12
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