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JP2006067545

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DESCRIPTION JP2006067545
The present invention provides a car audio hands-free system and an interactive voice
communication method that allow a driver to talk to a mobile phone without violating traffic
safety rules. A car audio handsfree system 1 includes a car audio system 10, an MP3 broadcaster
20, and a connection interface 30. The car audio system 10 includes a car audio device 11, an
interface circuit 14, a microphone 12 and a speaker 13, and has a hands free handset mode. The
MP3 broadcaster 20 includes an MP3 module 21, a wireless headset module 22 and an interface
circuit 23. The MP3 module 21 can perform two-way communication with the mobile phone 3 by
means of the wireless headset module 22. [Selected figure] Figure 1
Car audio hands-free system and interactive voice communication method
[0001]
The present invention relates to a hands free system for car audio, and more particularly to MP3
broadcasting in which the car audio system bi-directionally communicates with a mobile phone
at audio frequencies by coupling an MP3 broadcaster and switching the car audio system to a
receiver hands free mode. The present invention relates to a car audio hands-free system and a
two-way voice communication method for combining aircraft.
[0002]
Recently, in order to maintain traffic safety, the Road Traffic Law was amended to prohibit the
use of mobile phones while driving a car.
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1
However, it is permitted to use a hands-free device that can talk without having a mobile phone.
[0003]
In order to improve the safety of using a mobile phone while driving (driving) a car and to
comply with the prohibition rules of a mobile phone at the time of driving a car, a car audio
trader has finally built a car audio system incorporating a hands-free handset for mobile phone
Developed and this is becoming pervasive. While the user of the mobile phone is driving a car, it
is used as a hands-free handset by using a car audio mounted on the car. As a result, it is possible
to avoid the inconvenience of long-time hearing of the conventional simple hands-free handset in
improving safety during driving of a car.
[0004]
The conventional hands-free handset for a mobile phone mainly comprises a mobile phone set, a
circuit body, a power input plug, a microphone, a speaker, an antenna for automobile outside,
and the like. Therefore, the number of parts is large, it is difficult to mount, adversely affects the
decorativeness in the vehicle after mounting, and these hardware and their wiring may be
randomly disposed in the vehicle, which may cause safety problems. In addition, when using the
circuit body of the mobile phone, it is necessary to connect to the power supply inside the car.
Therefore, it is usually necessary to occupy a plug for a writer or to connect another power
source, to change the circuit design of the automobile, to require a high level of technology, and
also to take safety considerations. In addition, when the writer power supply is used directly,
since the writer can not be used, it causes great inconvenience to the smoker.
[0005]
On the other hand, a mobile phone module is provided in a car audio apparatus as a function of a
mobile phone which combines a European standard car audio system. As a result, the circuit
modules of the car audio device mutually form a common circuit module using connection of
circuit resources or input / output equipment. This common circuit module can be
interconnected with the communication connection terminal of the mobile telephone provided on
the panel of the car audio, and the same panel as the mobile telephone is also provided on this
panel. A user can insert a SIM (Subscriber Identify Module) card of a mobile phone directly into a
01-05-2019
2
terminal hole to perform a call operation conveniently using a car audio as a mobile phone.
[0006]
And, the design of the Asian standard car audio system hands-free handset connects the car
audio system in the car using a single transmission line. However, by operating the device of the
mobile phone to connect or connect, the speaker of the car audio is output as the mobile phone,
and the call quality of the mobile phone is further utilized utilizing the high efficiency and high
fidelity characteristics of the car audio speaker. It is improved and the safety while driving is
enhanced.
[0007]
Although the hands-free handset of a mobile phone combined with any of these standard car
audios has convenience, when the car audio speaker used for it is the output of the mobile
phone, there is a problem of "privacy". That is, when another passenger is on the car, it is
impossible to make the contents of the call on the mobile phone inaudible to other passengers. In
addition, since the driver is also in violation of the law to receive on his mobile phone, it is
necessary to improve the output of such a car audio speaker as a mobile phone.
[0008]
The present invention has been made in view of the problems as described above in the prior art,
and it is an object of the present invention to provide a car audio hands-free system and an
interactive voice communication method which overcome or reduce such problems. That is, the
technology of "MP3 broadcaster capable of receiving a broadcast temporary stop mobile phone"
of Taiwan Patent Application No. 92121117, which has already been patented, is combined and
applied to a car audio speaker. The reception function of the MP3 broadcaster headset or mobile
phone is a two-way voice communication interface between the car audio hands-free system and
the mobile phone.
[0009]
The present invention provides a hands-free system and method for car audio by electrically
connecting an MP3 broadcaster and a car audio device by radio to an incoming call of a mobile
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phone, whereby the hands-free system for this car audio is wireless hands-free Function as a
handset.
[0010]
Furthermore, in view of the privacy of the driver, the present invention provides a wireless
headset as a wireless communication medium between a car audio device and a mobile phone,
and the car audio hands-free system has the function of a wireless hands-free handset and this
wireless The headset can leave the car audio hands-free system at any time, and can maintain
wireless communication between the wireless headset device and the mobile phone.
[0011]
In one embodiment of the present invention, a car audio handsfree system includes a car audio
system, an MP3 broadcaster, and a connection interface, the car audio includes a car audio
device, a microphone and a speaker, and the car audio device includes It has a hands free
handset mode.
The MP3 broadcaster includes an MP3 module and a wireless headset module, and the MP3
broadcaster enables two-way communication with the mobile phone by the wireless headset
module.
The connection interface electrically connects the MP3 module and the car audio. As a result,
when the two-way communication of the MP3 module and the mobile phone is possible, the MP3
module enters the hands-free handset mode of the car audio device.
[0012]
In another embodiment of the present invention, a car audio handsfree system includes a car
audio system, an MP3 broadcaster and a wireless headset device, the car audio includes car
audio equipment, a microphone and a speaker, and the car audio equipment Is equipped with a
handsfree handset mode, and the wireless headset device and the mobile phone are wirelessly
connected. The first connection interface electrically connects between the MP3 module and the
wireless headset device, and the second connection interface electrically connects between the
MP3 module and the car audio device. This allows the MP3 module to be placed in the hands-
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free handset mode of the car audio device if the MP3 module has made the wireless headset
device and the mobile phone bi-directional communication.
[0013]
In addition, the present invention enables a car audio device to be coupled with an MP3
broadcaster, and provides a wireless hands-free communication method. The car audio device
comprises a hands free handset mode and includes the following steps.
[0014]
Provides a connection for electrical connection between the MP3 module and the car audio
device. The MP3 broadcaster communicates bi-directionally with the mobile phone via a wireless
headset module. Also, the MP3 broadcaster can enter the handsfree handset mode by generating
an enable signal in response to an incoming call indication of the mobile phone.
[0015]
In the car audio hands-free system according to the present invention, a car audio device is
electrically connected to an MP3 broadcaster, and the MP3 broadcaster has a function of
receiving an incoming call from a portable telephone. Therefore, the car audio device can enter
the hands-free handset mode by the MP3 broadcasting machine responding to the incoming call
indication of the mobile phone when generating the broadcast signal and generating the enable
signal. It is possible for the driver to use the car audio hands-free system, to separate or select
the wireless headset device, and to receive an incoming call from the mobile phone.
[0016]
According to the car audio hands-free system and the two-way voice communication method of
the present invention, the following practical outstanding effects can be obtained. That is, the
driver can listen to music and broadcast with high sound quality by the car audio system, and
can talk with the other party on the mobile phone in the hands-free handset mode while
maintaining traffic safety. The hands-free handset mode can also be used to switch off a speaker
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5
or switch headsets to protect the privacy of the call. Furthermore, it is possible to record the
contents of the call as needed and to play it back later.
[0017]
Hereinafter, preferred embodiments of a car audio hands-free system and an interactive voice
communication method according to the present invention will be described in detail with
reference to the accompanying drawings. These examples are merely illustrative of the present
invention, and do not limit the present invention. Those skilled in the art will readily understand
that various modifications can be made without departing from the scope of the present
invention.
[0018]
First, FIG. 1 is a block diagram of a first embodiment of a car audio hands-free system according
to the present invention. In this embodiment, the car audio hands-free system 1 of the MP3
broadcaster coupled to the present invention includes a car audio system 10, an MP3
broadcaster 20 and a connection interface 30. The car audio system 10 includes a car audio
device 11, a microphone 12 and a speaker 13. The car audio device 11 has a hands free handset
mode. The microphone 12 and the speaker 13 are connected to the car audio device 11,
respectively. Therefore, in the hands-free handset mode, the car audio device 11 emits a voice
signal from the mobile phone by the speaker 13 and further receives the voice signal or the
driver's voice by the microphone 12.
[0019]
The MP3 broadcaster 20 includes an MP3 module 21 and a wireless headset module 22. The
MP3 module 21 includes a memory unit for accessing an MP3 file or a recording file. A DSP
(Digital Signal Processor) processor is for processing MP3 files to produce corresponding audio
signals or recording files for storage in a memory unit. Then, the push button input unit
transmits a command requested by the user to the DSP processor. In addition, the MP3 module
21 controls the wireless headset module 22 to control the wireless headset module 22 and the
mobile phone 3 through the original wireless communication function provided between the
wireless headset module 22 and the mobile phone 3, for example, Bluetooth wireless
communication. Implement two-way communication.
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[0020]
The connection interface 30 makes an electrical connection between the car audio system 10
and the MP3 broadcaster 20. In this embodiment, the connection interface 30 includes an
electrical contact or an electrical connector of a panel provided in the car audio system 10 and
an electrical contact or an electrical connector provided in the MP3 broadcaster 20. The car
audio system 10 includes an interface circuit 14. The interface circuit 14 receives a signal from
the MP3 broadcaster 20 via the connection interface 30 and transmits a signal from the MP3
broadcaster 20 to the car audio device 11 while the car audio system 10 is transmitted by the
interface circuit 14. And transmits the signal from to the MP3 broadcaster 20 via the connection
interface 30.
[0021]
Furthermore, the MP3 broadcaster 20 includes an interface circuit 23. The interface circuit 23
receives a signal from the car audio system 10 through the connection interface 30, and
transmits the signal from the MP3 module 21 to the car audio system 10 through the connection
interface 30.
[0022]
The interface circuit 23 of the MP3 broadcaster 20, the connection interface 30 and the interface
circuit 14 of the car audio system 10 form a data switching path between the MP3 module 21
and the car audio device 11, thereby making the wireless headset module 22 and the mobile
phone After wireless communication between the three, this MP3 module 21 generates an enable
signal in response to an incoming call instruction of the mobile phone. The enable signal allows
the car audio device 11 to enter hands-free handset mode via the data switching path. In the
hands free handset mode of the car audio device 11, the MP3 module 21 transmits an audio
signal from the mobile phone 3 to the car audio device 11 via the data switching path, and emits
the audio signal from the speaker 13 become.
[0023]
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The car audio device 11 transmits an acoustic signal collected by the microphone 12 to the MP3
module 21 via the data switching path, and the MP3 module 21 transmits the signal to the
mobile phone 3 using the wireless headset module 22. Then, control between the MP3 module
21 and the wireless headset module 22 is performed, which uses the push button of the MP3
broadcaster 20 to confirm an incoming call instruction of the telephone 3 and to receive or
disconnect the telephone from the mobile telephone 3. It's too late.
[0024]
Next, FIG. 2 is a block diagram of a second embodiment of a car audio hands-free system
according to the present invention. The same reference numerals will be used for the
components corresponding to the above-described first embodiment for the convenience of
explanation. In this embodiment, the car audio hands-free system 2 of the MP3 broadcaster 20
coupled to the present invention includes a car audio system 10, an MP3 broadcaster 20 and a
wireless headset device 60. The wireless headset device 60 and the mobile phone 3 have a
wireless communication function such as Bluetooth wireless communication. The car audio
system 10 includes a car audio device 11, a microphone 12 and a speaker 13. The car audio
device 11 has a handsfree handset mode, and the microphone 12 and the speaker 13 are
connected to the car audio device 11, respectively. Therefore, in the hands-free handset mode,
the car audio device 11 emits an audio signal from the mobile phone 3 from the speaker 13, and
the microphone 12 receives the audio signal or the driver's voice.
[0025]
The MP3 broadcaster 20 includes an MP3 module 21 and an interface 23. The MP3 module 21
comprises a memory unit and a DSP processor for storing MP3 files or recording files. The DSP
processor processes the MP3 file to generate a corresponding audio signal or recording file and
stores it in the memory unit. The user then transmits the requested command to the DSP
processor by means of the push button input unit. In the present invention, the first connection
interface 70 is provided between the MP3 broadcaster 20 and the wireless headset device 60.
The first connection interface 70 includes an electrical contact or an electrical connector
provided on the panel of the MP3 broadcaster 20. The wireless headset device 60 can be
selectively coupled to or separate from the MP3 broadcaster 20. When the MP3 broadcaster 20
and the wireless headset 60 are electrically connected by the first connection interface 70,
bidirectional communication with the mobile telephone 3 is performed via the wireless
communication function between the wireless headset device 60 and the mobile telephone 3.
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8
Communication is possible.
[0026]
Furthermore, the present invention comprises a second connection interface 80. The second
connection interface 80 makes an electrical connection between the car audio system 10 and the
MP3 broadcaster 20. The second connection interface 80 includes an electrical contact or an
electrical connector provided on a panel of the car audio system 10 and an electrical contact or
an electrical connector of the MP3 broadcaster 20. Therefore, in this embodiment, different
electrical contacts or electrical connectors provided in the MP3 broadcaster 20 are connected to
the wireless headset device 60 and the car audio system 10, respectively.
[0027]
The car audio system 10 includes a car audio device 11 and an interface circuit 14. The interface
circuit 14 transmits the signal from the MP3 broadcaster 20 to the car audio device 11 through
the second connection interface 80, and the interface circuit 14 also transmits the signal from
the car audio device 11 through the second connection interface 80. Transmission to the MP3
broadcaster 20 is possible. The interface circuit 23 included in the MP3 broadcaster 20 receives
a signal from the car audio system 10 through the second connection interface 80 and transmits
the signal from the car audio system 10 to the MP3 module 21 by the interface circuit 23. At the
same time, the signal of the MP3 module 21 can be transmitted to the car audio system 10
through the second connection interface 80.
[0028]
In the car audio hands-free system 2 of the second embodiment, the first connection interface
70, the MP3 broadcaster 20 and the second connection interface 80 form a data switching path
between the wireless headset device 60 and the car audio system 10. Thus, after wireless
communication between the wireless headset 60 and the mobile phone 3, the MP3 module 21
generates an enable signal in response to the incoming instruction of the mobile phone 3, and
this enable signal causes the second connection interface 80 to It is possible to place the car
audio device 11 in hands-free handset mode via In the hands-free handset mode of the car audio
device 11, the MP3 module 21 causes the wireless headset device 60 to transmit an audio signal
from the mobile phone 3 to the car audio device 11, and causes the speaker 13 to emit this audio
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signal. The car audio device 11 can transmit the wireless headset device 60 to the mobile phone
3 by transmitting the audio signal collected by the microphone 12 to the wireless headset device
60 via the MP3 module 21.
[0029]
According to the car audio systems 1 and 2 of the first and second embodiments of the present
invention described above, when the mobile phone 3 receives a call, the MP3 broadcaster 20
enables the car audio system 10 and enters the handsfree handset mode. The car audio system
10 is bi-directionally communicated with the mobile phone 3 by confirming whether the
incoming call is received or not by the operation of the MP3 broadcaster 20. In the second
embodiment, in consideration of reception of a private telephone, the driver separates the
wireless headset device 60 from the MP3 broadcaster 20 so as to interrupt the handsfree
handset mode of the car audio system 10 at any time. It is possible to make a call using this
wireless headset device 60.
[0030]
Next, FIG. 3 is a flow chart for explaining the two-way voice communication method of the car
audio hands-free system according to the present invention. This two-way voice communication
method is implemented in the car audio hands-free system 1 or 2 shown in FIG. 1 or 2 and
enables two-way voice communication between the car audio device 11 and the mobile phone 3.
Has a hands-free handset function. The bidirectional voice communication method of the present
invention includes the following steps.
[0031]
Step 101: Electrically connect between the MP3 module 21 of the MP3 broadcaster 20 and the
car audio device 11 of the car audio system 10. The MP3 broadcaster 20 connects the car audio
system 10 via the connection interface 30, 80. In addition, the MP3 module 21 and the car audio
device 11 are electrically connected. Then, the MP3 module 21 controls the wireless headset
module 22 or the wireless headset device 60 to enable two-way voice communication with the
mobile phone 3.
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[0032]
Step 102: The car audio device 11 is operated in the recording and reproduction mode When the
car audio system 10 is operated in the recording and reproduction mode, the driver operates the
panel of the car audio device 11 to play music or broadcast. It is possible to listen.
[0033]
Step 103: The MP3 module 21 enters the handsfree system in response to an incoming call and
after the wireless connection between the MP3 module 21 and the mobile phone 3 is made, this
MP3 module 21 responds to the incoming instruction of the mobile phone 3 and the MP3
module 21 Transmits an enable signal to the car audio device 11 so that the car audio device 11
enters handsfree receiver mode.
After the car audio device 11 enters the handsfree mode, the car audio device 11 receives an
audio signal from the MP3 module 21, is emitted from the speaker 13, and notifies the driver of
an incoming call from the mobile phone 3 Do.
[0034]
Step 104: Receive confirmation of the MP3 module 21 After the driver receives an incoming call
from the mobile phone 3 in the hands-free handset mode, the MP3 broadcaster is used to
confirm whether the driver receives an incoming call or not. Make 20 operable. The MP3 module
21 receives a command requested by the driver from the push button input unit and determines
whether to receive an incoming call. When the MP3 module 21 determines that the driver has
issued the requested instruction and determines that the incoming call from the mobile phone 3
is not received, the MP3 module 21 stops transmitting the audio signal of the mobile phone 3
Then, the portable telephone 3 is notified of this via the wireless headset module 22 or the
wireless headset device 60, the incoming signal is disconnected, and the car audio device 11
interrupts the handsfree handset mode and proceeds to step 102 described above. On the other
hand, when the instruction requested by the driver based on the determination of the MP3
module 21 receives an incoming call of the mobile phone 3, step 105 described below is
executed.
[0035]
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11
Step 105: Operate as the handsfree handset mode in the car audio system 11. When the car
audio system 11 is operated in the handsfree handset mode, this car audio system 11 performs
two-way voice communication with the mobile phone 3 by the MP3 module 21. Is done. In the
first embodiment of the present invention, the MP3 module 21 receives a command requested by
the driver from the push button input unit and determines whether to end the call. If the call is
not ended by the confirmation of the MP3 module 21, step 105 is continued to be executed. On
the other hand, when the MP3 module 21 confirms the command requested by the driver and
disconnects the call, the handsfree handset mode of the car audio device 11 is interrupted, and
the process returns to step 102 described above.
[0036]
In the second embodiment of the present invention, the MP3 module 21 receives an instruction
from the driver via the push button input unit to determine whether or not to end the call, and
executes step 106 to execute the wireless headset device. It is determined whether 60 is
separated.
[0037]
Step 106: Separate the Wireless Headset The driver can always MP3 broadcast at any time to
cancel his call with his partner via the hands-free handset mode of the car audio system 10 and
protect his privacy. This wireless headset device 60 can be separated from the aircraft 20.
When the MP3 module 21 confirms that the wireless headset device 60 is not separated from the
MP3 broadcaster 20, the MP3 module 21 executes step 109 and confirms whether the call is
ended. When it is confirmed that the wireless headset device 60 is separated from the MP3
broadcaster 20, the MP3 module 21 executes step 107.
[0038]
Step 107: Interrupt the hands-free handset mode of the car audio device 11. If the MP3 module
21 determines to separate the wireless headset device 60 from the MP3 broadcaster 20, the car
audio device 11 confirms the MP3 module 21 Interrupt the handsfree handset mode.
[0039]
Step 108: After separating the MP3 broadcaster 20 from the wireless headset device 60 using
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the wireless headset, the wireless headset device 60 still has two-way voice communication with
the mobile phone 3 suspended, so The driver can use this wireless headset device 60 to continue
the call in order to prevent the contents of the call from being leaked to the third party and to
protect privacy.
[0040]
Step 109: End the call When the MP3 module 21 confirms that the call has not ended, it executes
Step 105.
If the MP3 module 21 confirms the driver's request instruction and disconnects the call, the car
audio device 11 interrupts the handsfree handset mode and returns to step 102 described above.
[0041]
Next, FIG. 4 is a recording flowchart of the car audio hands-free system according to the present
invention.
This method is implemented in the car audio hands-free system 1, 2 shown in FIGS.
[0042]
The MP3 broadcaster 20 performs bi-directional voice communication between the car audio
device 11 and the mobile phone 3 and generates a recording file, and the car audio device 11 has
a hands-free handset function. The method of the present invention comprises the following
steps.
[0043]
Step 201: Electrically connect the MP3 module and the car audio device The MP3 broadcaster 20
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electrically connects the MP3 module 21 and the car audio device 11 by connecting the car
audio system 10 via the connection interface 30, 80. Connecting. Then, the MP3 module 21
controls the wireless headset module 22 or the wireless headset device 60 to enable two-way
voice communication with the mobile phone 3.
[0044]
Step 202: Car audio equipment executes hands-free handset mode After wirelessly connecting
the MP3 module 21 and the mobile telephone 3, this MP3 module 21 responds to the incoming
call instruction from the mobile telephone 3 and enables the car audio equipment Then, the car
audio device 11 is operated in the hands-free handset mode.
[0045]
Step 203: MP3 Module Confirms Recording Operation When the driver makes a call in the
hands-free handset mode, the driver operates the MP3 broadcaster 20 to execute the recording
operation.
The MP3 module 21 receives the driver's request command from the push button input unit and
determines whether to record. If the driver's request command determined by the MP3 module
21 records a sound, step 204 described later is executed, otherwise the process returns to step
202 described above.
[0046]
Step 204: Generate and store a call recording file by the MP3 module 21. The MP3 module 21 is
interposed between the car audio system 10 and the wireless headset module 22 or the wireless
headset device 60. Therefore, the MP3 module 21 can record a call made by the driver in the
handsfree handset mode, and causes the MP3 module 21 to generate a recording file and store it
in the memory unit.
[0047]
The preferred embodiments of the car audio hands-free system and interactive voice
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communication method according to the present invention have been described above in detail.
However, it will be readily understood by those skilled in the art that such embodiments are
merely examples of the present invention, and that various modifications can be made without
departing from the scope or spirit of the present invention.
[0048]
FIG. 1 is a block diagram showing the configuration of a first embodiment of a car audio handsfree system according to the present invention. It is a block diagram showing the composition of
the 2nd example of the car audio hands-free system by the present invention. It is a flowchart
which shows the two-way voice communication method by the car audio hands-free system of
this invention. 5 is a flowchart of recording by a car audio hands-free system according to the
present invention.
Explanation of sign
[0049]
1, 2 car audio hands-free system 3 mobile phone 10 car audio system 11 car audio equipment
12 microphone 13 speaker 14, 23 interface circuit 20 MP3 broadcasting machine 21 MP3
module 22 wireless headset module 30 connection interface 60 wireless headset device 70 1
Connection interface 80 2nd connection interface
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