close

Вход

Забыли?

вход по аккаунту

?

DESCRIPTION JPH10173745

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH10173745
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to car
audio, and more particularly to car audio designed to be connectable to a portable telephone.
[0002]
2. Description of the Related Art In recent years, car audio having various functions has become
widespread. On the other hand, mobile phones that can talk hands-free are also widespread, and
driving and boarding cars are increasingly given opportunities to use mobile phones while
listening to car audio.
[0003]
However, since the conventional car audio does not have a function that can be connected to the
portable telephone, when using the hands-free portable telephone, the user operates the mute
key etc. of the car audio every time. The voice had to be reduced, and there was room to improve
operability. In addition, it is not preferable from the viewpoint of driving safety to perform such
operation of the mute key or the like during driving of the vehicle.
[0004]
10-04-2019
1
In addition, despite the presence of car audio speakers, hands-free mobile phones have dedicated
speakers, which is a waste of construction. An object of the present invention is to provide a
useful car audio that can improve the operation environment and solve the structural waste at
the same time when using a mobile phone.
[0005]
SUMMARY OF THE INVENTION In order to achieve the above object, according to the present
invention, there is provided switching means for switching an input to an audio amplifier from an
audio signal to a reception signal of a portable telephone terminal and a ringer sound signal of
the portable telephone terminal. And control means for switching and controlling the switching
means.
[0006]
DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a diagram
showing the configuration of a car audio system according to a first embodiment.
This figure comprises a selector circuit 100, a microphone amplifier 110, a mobile phone
connection adapter 120, a switching circuit 130, an audio amplifier 140 and a speaker 150.
[0007]
The selector circuit 100 receives various audio signals from an on-vehicle CD player (not shown),
a cassette tape deck (not shown), and FM / AM Radio (not shown), and operates one of the audio
signals by the user. It outputs to the switching circuit 130 based on the instruction. The
microphone amplifier 110 receives an MIC input from a microphone (not shown) provided in the
car audio, amplifies it, and outputs it as a transmission signal to the mobile phone connection
adapter 120.
[0008]
10-04-2019
2
The mobile phone connection adapter 120 is connected to a mobile phone terminal 111 such as
a mobile phone (analog or digital) or PHS, and acquires a receiver signal and a ringer sound
signal from the receiver of the mobile phone terminal 121 and the ringer speaker. The received
speech signal and ringer sound signal are output to the switching circuit 130. Also, it receives a
transmission signal from the microphone amplifier 110 and outputs voice to the transmission
unit of the mobile phone terminal 121.
[0009]
The switching circuit 130 includes a switch 131 and a switch control unit 132. The switch 131
receives an audio signal from the selector circuit 100 and an incoming call signal from the
mobile phone connection adapter 120, and outputs one of the signals to the audio amplifier 140
under the control of the switch control unit 132. In the initial state, the audio signal is output to
the audio amplifier 140.
[0010]
The switch control unit 132 switches the switch 131 so that the incoming call signal is output to
the audio amplifier 140 when the ringer sound signal is received from the mobile phone
connection adapter 120. Also, the switch 131 can be switched by an arbitrary operation of the
user. The audio amplifier 140 receives an audio signal or a reception signal from the switching
circuit 130, amplifies it, and outputs it to the speaker 150.
[0011]
The speaker 150 is an on-vehicle speaker for car audio, and outputs an audio based on the
amplified signal from the audio amplifier 140. FIG. 2 is an enlarged sectional view of the mobile
phone connection adapter 120. As shown in FIG. The mobile phone connection adapter 120
includes a reception microphone 21, a transmission speaker 22, a ringer microphone 23, and a
signal processing unit 24.
[0012]
10-04-2019
3
The receiving microphone 21 is provided at a position facing the receiving speaker 25 of the
receiving unit of the mobile phone terminal 121, and acquires an audio output output from the
receiving speaker 25. The transmission speaker 22 is provided at a position facing the
transmission microphone 26 of the transmission unit of the mobile phone terminal 121, and
outputs the speaker output from the signal processing unit 24 by voice.
[0013]
The ringer microphone 23 is provided at a position facing the ringer speaker 27 provided on the
back surface of the mobile phone terminal 121, and acquires the ringer sound from the ringer
speaker 27. As shown in FIG. 3, the signal processing unit 24 includes microphone amplifiers 31
and 32, a speaker amplifier 33, a transmission buffer 34, a reception buffer 35, and an I / F
connector 36.
[0014]
The microphone input from the reception microphone 21 is amplified by the microphone
amplifier 31, and after the signal level adjustment is performed by the transmission buffer 34,
the microphone input is output to the switching circuit 130 as a reception signal via the I / F
connector 36. The microphone input from the ringer microphone 23 is amplified by the
microphone amplifier 32, and after the level of the signal is adjusted by the transmission buffer,
the microphone input is output as a ringer sound signal through the I / F connector 36.
[0015]
Further, the transmission signal input from the switching circuit 130 is subjected to level
adjustment of the signal by the reception buffer via the I / F connector 36, and then amplified by
the speaker amplifier 33, and transmitted as a speaker output. Output to FIG. 4 is a front external
view of the mobile phone connection adapter 120. As shown in FIG. The mobile phone
connection adapter 120 is hollow, and has a structure in which the mobile phone terminal 121
can be inserted from above into the cavity. Further, a notch 40 is provided on the front of the
mobile phone connection adapter 120, and the operation panel of the mobile phone 121 can be
directly operated while the mobile phone 121 is inserted.
10-04-2019
4
[0016]
Next, the operation of the car audio system according to the present embodiment will be
described. First, when a telephone call is not received, an audio signal from the selector circuit
100 is amplified by the audio amplifier 140 via the switch 131 as shown in FIG. Here, when the
mobile phone terminal 121 receives an incoming call, the ringer sound emitted from the mobile
phone terminal 121 is acquired by the mobile phone connection adapter 120 as a ringer sound
signal and is input to the switch control unit 132. The switch control unit 132 controls the switch
131 so that the incoming call signal from the mobile phone connection adapter 120 is output to
the audio amplifier 140 when the ringer sound signal is input. At this time, when the user
presses the operation button of the mobile telephone terminal 121, the communication state is
established, and the voice of the other party is output from the speaker 150 based on the
reception signal. On the other hand, the voice which is the voice of the person picked up by the
microphone (not shown) is amplified by the microphone amplifier 110 and is voice-outputted to
the transmission unit of the mobile phone terminal 121 as a transmission signal. The output
voice is transmitted to the other party via the transmission unit of the mobile phone terminal
121.
[0017]
As described above, the car audio in this embodiment can switch between the audio signal and
the reception signal based on the ringer sound signal, and the car audio speaker can be shared
and used with the portable telephone terminal. Further, since the mobile phone connection
adapter 120 is configured to exchange signals with the mobile phone terminal 121 by voice
using a microphone or a speaker, any type of mobile phone or PHS can be used. It can be
connected to an adapter.
[0018]
Although the switching circuit 130 in the present embodiment is configured of the switch 131
and the switch control unit 132 and switches between the audio signal and the reception signal,
the present invention is not limited to this. For example, the switching circuit 130 may be
configured as a selector circuit, and the selector circuit may be configured to switch between an
audio signal, a ringer sound signal, and a reception signal. Specifically, a control unit that
controls the selector circuit is provided, and the control unit controls switching of the selector
circuit by giving priority to the ringer sound signal, the reception signal, and the audio signal in
10-04-2019
5
this order. Second Embodiment FIG. 5 is a diagram showing the configuration of a car audio
system according to a second embodiment. This figure comprises a selector circuit 100, an audio
amplifier 140, a speaker 150, an external interface 510, and a switching circuit 520. Here, the
same components as in the first embodiment are given the same reference numerals, and the
description thereof is omitted.
[0019]
The external interface 510 is connected to the digital portable telephone 512 via the connection
cord 511, receives an incoming call signal and an incoming call confirmation signal from the
digital portable telephone 512, and outputs the signal to the switching circuit 520. Here, the
incoming call confirmation signal is a signal that informs the digital portable telephone 512 that
there is an incoming call. Also, it transmits a transmission signal and a call control signal to the
digital portable telephone. Here, the call control signal is a signal for controlling on-hook and offhook of the digital portable telephone.
[0020]
The switching circuit 520 includes a switch 521, a switch 522, and a switch control unit 523.
The switch 521 switches between an audio signal and a reception signal, as with the switch 131
in the first embodiment. The switch 522 disconnects the signal path of the transmission signal
under the control of the switch control unit 523.
[0021]
The switch control unit 523 receives an incoming call confirmation signal from the external
interface 510, switches the switch 521 to the incoming call signal side, and controls the switch
522 to close. Furthermore, when a signal for controlling off-hook is received from the call control
signal from an operation button (not shown) provided on the car audio, the switch 521 is
switched to the reception signal side and the switch 522 is controlled to be closed. When a signal
for controlling on-hook is received among the call control signals, the switch 521 is switched to
the audio signal side and the switch 522 is controlled to be opened.
[0022]
10-04-2019
6
The digital portable telephone 512 is a general personal digital cellular (PDC) portable telephone
and is connected to an external interface 510 of car audio via a connector interface 513. The
connector interface 513 is an external connector for connecting an external device usually
provided on the bottom of the main body of the mobile phone of the PDC.
[0023]
FIG. 6 is an external view of a connector interface 513 provided in the digital mobile telephone
512. As shown in FIG. The connector interface 513 is arranged in two stages of terminal number
1 to terminal number 8 sequentially from the left as shown in 601 in the figure and terminal
number 9 to terminal number 16 from the left as shown in 602 in the figure. It has 16 terminals.
Reference numerals 603 and 604 located on the left and right sides of the connector interface
513 denote a transmission / reception antenna connection terminal and a reception antenna
connection terminal, respectively.
[0024]
FIG. 7 shows the role of each terminal of the connector interface 513. As shown in FIG. Among
these terminals, the terminal of terminal number 2 corresponds to the terminal for carrying the
above-mentioned transmission signal. Similarly, the terminal of terminal number 10 is a terminal
for carrying the above-mentioned reception signal. Terminals of the terminal number 12 and the
terminal number 13 are terminals for carrying the above-mentioned call control signal and the
incoming call confirmation signal.
[0025]
Next, the operation of the car audio system according to the present embodiment will be
described. First, when the digital portable telephone 512 receives an incoming call, an incoming
call confirmation signal is input to the switching circuit 520 through the connection code 511
and the external interface 510. The switch control unit 523 of the switching circuit 520 receives
the incoming call confirmation signal, and switches the switch 521 to the incoming signal side
and controls the switch 522 to close. At this time, when the user operates the operation button, a
call control signal for off-hook is sent to the digital portable telephone 512, and a call state is
10-04-2019
7
established. Then, the speaker 150 outputs the voice of the other party. On the other hand, the
voice of the person picked up by the microphone (not shown) is sent to the digital portable
telephone 512 as a transmission signal via the switch 522.
[0026]
After the call ends, when the user operates the operation button, the switch control unit 523
switches the switch 521 to the audio signal side and controls the switch 522 to open. Further, a
call control signal for on-hook is sent to the digital portable telephone 512, and the call is ended.
When making a call, the switch control unit 523 switches the switch 521 to the reception signal
side and closes the switch 522 when the user operates the operation button. Further, a call
control signal to go off-hook is sent to the digital portable telephone 512, and it becomes an
outgoing call state, and a call can be made by pressing the other party's number.
[0027]
As described above, the car audio in the present embodiment can switch between the audio
signal and the reception signal based on the incoming call confirmation signal and the call
control signal, and the car audio speaker is used in common with the digital portable telephone
be able to. Further, since the external connector provided to the digital portable telephone is
used, off-hook and on-hook control can be performed from the car audio side.
[0028]
In the present embodiment, the ringer sound is not output from the speaker 150 although the
switch 521 and the switch 522 are controlled when there is an incoming call, but may be output.
Specifically, while the switching circuit 520 receives the incoming call confirmation signal, a
circuit for generating a ringer sound may be provided, and the signal may be output to the
reception signal side of the switch 521.
[0029]
As described above, according to the present invention, there are provided switching means for
10-04-2019
8
switching the input to the audio amplifier from the audio signal to the reception signal of the
mobile telephone terminal, and the switching means when receiving the ringer sound signal of
the mobile telephone terminal. A control means for switching control can be provided, and an
audio signal and an incoming call signal can be switched based on a ringer sound signal from a
mobile phone terminal, and a car audio speaker can be shared and used with the mobile phone
terminal. In addition, since there is no need to operate the mute key or the like of the car audio to
make the sound smaller, the operability is improved.
[0030]
Further, since the car audio supports a receiver microphone acoustically coupled to the receiver
of the mobile phone terminal, and the mobile phone terminal adapter outputs the output of the
receiver microphone to the switching means as the receiver signal. Any type of mobile phone,
PHS, etc. can be connected to the adapter. Further, the car audio is provided with a mobile phone
terminal adapter supporting the ringer microphone in a state of being acoustically coupled to the
ringer speaker of the mobile phone terminal, and outputting the output of the ringer microphone
as a ringer sound signal used by the control means. Therefore, any type of mobile phone, PHS,
etc. can be connected to the adapter.
[0031]
In addition, the car audio further includes a transmission microphone for acquiring a user's voice
as a transmission signal, and the mobile phone terminal adapter is further configured to use the
voice of the transmission section of the mobile phone terminal based on the transmission signal.
Since the transmission speaker for output is supported, it is possible to connect any type of
mobile phone, PHS or the like to the adapter.
[0032]
Further, the mobile phone terminal has an external connector for connecting an external device,
and the car audio acquires an incoming call signal from the external connector provided in the
digital mobile phone, so that the digital mobile phone and the car can be used. Audio speakers
can be connected, and car audio speakers can be shared with mobile phone terminals.
[0033]
Brief description of the drawings
10-04-2019
9
[0034]
<Figure 1> It is the figure which shows the constitution of the car audio in the form 1 of
execution.
[0035]
2 is an enlarged sectional view of the mobile phone connection adapter of the car audio.
[0036]
3 is a diagram showing the configuration of the signal processing unit of the car audio.
[0037]
4 is a front external view of the mobile phone connection adapter.
[0038]
5 is a diagram showing the configuration of the car audio in the second embodiment.
[0039]
6 is a diagram showing the appearance of the connector interface provided in the digital mobile
phone.
[0040]
7 is a diagram showing the role of each terminal of the connector interface.
[0041]
Explanation of sign
[0042]
Reference Signs List 100 selector circuit 110 microphone amplifier 120 mobile phone
connection adapter 130 switching circuit 131 switch 132 switch control unit 140 audio
amplifier 150 speaker 510 external interface 520 switching circuit
10-04-2019
10
Документ
Категория
Без категории
Просмотров
0
Размер файла
19 Кб
Теги
description, jph10173745
1/--страниц
Пожаловаться на содержимое документа