KR100685441B1 - The System And Method For Controling Hands-Free - Google Patents

Abstract

Hands-free control system and method according to the present invention, instead of controlling hands-free using handsfree independent keys, hands-free using various keys provided in car audio through wireless or wired data communication between car audio and hands-free. By controlling the control, it is possible to reduce the inconvenience caused by the separate key operation of hands-free and car audio, and to reduce the size of parts and increase the space activity in the vehicle.

Description

Hands-free control system and the method {The System And Method For Controling Hands-Free}

1 is a view showing the internal structure of a vehicle equipped with a hands-free control system according to the present invention,

2 is a schematic diagram showing a hands-free control system according to a first embodiment of the present invention;

3 is a flowchart schematically showing a hands-free control method according to a first embodiment of the present invention;

4 is a schematic view showing a hands-free control system according to a second embodiment of the present invention;

5 is a flowchart schematically showing a hands-free control method according to a second embodiment of the present invention;

6 is a flow chart briefly showing a hands-free control method according to a third embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

3: microphone 4: speaker

10: car audio system 11: hands free unit

12 input unit 13 hands-free control unit

14: hands free interface unit 15: audio unit

16: audio interface unit 17: audio control unit

18: key input unit 19: power detection unit

The present invention relates to a hands-free control system and a method thereof, and more particularly, a hands-free control system and a method for installing a hands-free module inside a car audio system and controlling hands-free using various keys provided in the car audio system. It is about.

As the number of mobile phone users increases, more users use mobile phones while driving, but holding a steering wheel with one hand and talking on the mobile phone with the other hand can reduce the driver's concentration and increase the accident rate while driving.

Therefore, hands-free has been developed and used to reduce the incidence of accidents by allowing the user to make a call without leaving the steering wheel while driving the vehicle and at the same time provide more convenience to the driver.

However, these handsfrees are independent of audio and handsfree.

Therefore, the driver has to control the audio and the hands-free by manipulating individual keys, which is not only cumbersome to use, but also increases the production cost and is inefficient in space utilization in the vehicle.

Accordingly, the present invention has been made to solve the above problems, by controlling the hands-free by wireless or wired by using various keys provided in the car audio system, the inconvenience of controlling each of the individual keys of the audio and hands-free It is an object of the present invention to provide a hands-free control system and a method thereof.

Hands-free control system connected to a mobile phone according to an aspect of the present invention for achieving this object, including the hands-free mode information in the call signal received from the mobile phone, and amplifies the call signal according to the received key signal Or reduce and output a voice signal according to the call signal by changing to a hands-free mode according to the hands-free unit for wirelessly transmitting the call signal and the hands-free mode information included in the call signal received from the hands-free unit. And an audio unit for providing a key signal according to a selection to the hands-free unit.
A hands-free control system connected to a mobile phone according to another aspect of the present invention includes a hands-free mode information in a call signal received from the mobile phone to provide a signal of a first format, and converts the call signal according to the received key signal. A hands-free unit for processing and hands-free mode according to the hands-free mode information included in the call signal received from the hands-free unit, to output voice information according to the call signal, and according to the driver's selection, a key of the second format. An audio unit for transmitting a signal, a signal of a first format provided from the hands-free unit, converted into a signal of the second format, and transmitted to the audio unit, and a key signal of a second format provided from the audio unit It converts to one format and includes a data communication unit for transmitting to the hands free unit by wire or wirelessly.
According to another aspect of the present invention, there is provided a signal processing method of a hands-free control system connected to a mobile phone, including: hands-free mode information included in a call signal received from the mobile phone, and transmitting to the audio unit; Converting to hands-free mode according to the included hands-free mode information, outputting voice information according to the call signal, wirelessly transmitting a key signal received by the audio unit to the hands-free unit, and a key to which the hands-free unit is received Processing the call signal according to the signal and transmitting the signal wirelessly to the audio unit.
According to another aspect of the present invention, there is provided a signal processing method of a hands-free control system connected to a mobile phone, the method comprising: transmitting a call signal according to a first format to a data communication unit by including hands-free mode information in a received call signal; Converting the signal of the first format received by the data communication unit into a signal of a second format that can be processed by the audio unit, and transmitting the signal to the audio unit; and switching from the audio mode to the hands-free mode according to the received call signal of the audio unit to make the call. Outputting a voice signal according to a signal, transmitting a key signal of a second format according to a driver's selection to the data communication unit, and converting a key signal of a second format received by the data communication unit to a signal of a first format Transmitting the signal to the hands-free unit, and according to a key signal received by the hands-free unit. And a step of converting the speech signals received from daepon.

delete

delete

delete

delete

delete

delete

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

1 is a view showing the structure of a vehicle inside a hands-free control system according to the present invention.

Referring to FIG. 1, the hands-free control system includes a car audio system 1, a hands-free unit 2, a microphone 3, and a speaker 4.

The hands free unit 2 is mounted as a module inside the car audio system 1, and is connected with a mobile phone by a call cord to receive a call signal from the mobile phone.

That is, the hands free unit 2 is mounted inside the car audio system 1 to improve the space usage efficiency in the vehicle.

The microphone 3 is connected to the hands free unit 2, is installed at a position where the driver's voice can be well received, and provides a voice signal according to the driver's voice to the hands free unit 2.

The speaker 4 is installed at a position where a voice signal can be output well, and outputs voice information.

2 is a block diagram schematically illustrating a hands-free control system according to a first embodiment of the present invention.

Referring to FIG. 2, the car audio system 10 includes a hands free unit 11 and an audio unit 15.

The car audio system 10 not only functions as an audio system such as playing a cassette tape or a compact disc, but also provides the hands free unit 11 with a key signal input from various keys provided in the hands free mode.

The hands free unit 11 includes an input unit 12, a hands free control unit 13, and a hands free interface unit 14, and the audio unit 15 includes an audio interface unit 16, an audio control unit 17, and a key input unit 18. ), And a power detector 19.

The hands-free unit 11 includes the hands-free mode information in the sensing signal and the call signal received from the mobile phone and transmits the hands-free interface unit 14 to the audio unit 15 through the hands-free interface unit 14.

In addition, the hands-free unit 11 processes the call signal received through the input unit 12 according to a key signal received from the audio unit 15 and transmits the signal to the audio unit 15 by wire or wirelessly.

For example, when the hands free unit 11 receives a key signal corresponding to the volume up or volume down, the hands free unit 11 amplifies or reduces the call signal received from the input unit 12 corresponding to the key signal. .

The hands free unit 11 transmits the amplified or reduced call signal to the audio unit 15 through the hands free interface unit 14 to be output to the speaker 4.

The microphone 3 converts the driver's voice into an electrical signal and transmits it to the input unit 12.

The input unit 12 receives a detection signal and a call signal from the mobile phone, or transmits an electric signal according to the driver's voice from the microphone 3 to the mobile phone.

The input unit 12 removes noise included in the received call signal and transmits the noise to the hands-free control unit 13.

The hands-free control unit 13 converts the detection signal and the call signal received from the input unit 12 into digital signals, and performs signal processing to prevent echoes and howling.

The hands-free control unit 13 includes the hands-free mode information in the detection signal and the call signal and transmits the information to the hands-free interface unit 14.

In addition, when the hands-free control unit 13 receives the key signal through the hands-free interface unit 14, the hands-free control unit 13 processes the call signal received from the input unit 12 according to the key signal.

The hands free interface unit 14 performs data communication in real time with the audio interface unit 16 in a wired or wireless manner, and the audio unit 15 receives a call signal including a detection signal and hands-free mode information received from the hands-free control unit 13. The wired or wireless transmission to the audio interface 16 of the.

The hands-free interface unit 14 also transmits various key signals received from the audio interface unit 16 to the hands-free control unit 13.

When the audio unit 15 receives the detection signal from the hands-free unit 11, the audio unit 15 checks the state of the on-power source from the power detection unit 19.

The audio controller 17 transmits a signal including the loss notification information to the speaker 4 when the on power is turned off to output voice.

On the other hand, when the on-power is ON, the audio unit 15 receives a call signal including the hands-free mode information from the hands-free unit 11, and the audio unit 15 outputs a preset key. The mode is switched to the hands-free mode, and the key signal received from the key input unit 18 is transmitted to the hands-free unit 11 through the audio interface unit 16.

The audio interface unit 16 communicates with the hands-free interface unit 14 in a wired or wireless manner in real time, and transmits a call signal including hands-free mode information received from the hands-free interface unit 14 to the audio control unit 17.

Meanwhile, the audio interface unit 16 receives the key signal input from the key input unit 18 from the audio control unit 17 and transmits it to the hands free interface unit 14.

The audio controller 17 performs overall signal processing of the audio unit 15 such as the audio interface unit 16, the key input unit 18, the power detector 19, and the speaker 4.

In addition, the audio controller 17 converts the key of the key input unit 18 from the audio mode to the hands-free mode according to the hands-free mode information in response to the call signal received from the audio interface unit 16, Voice and ring signals are transmitted to the speaker 4 for output.

Meanwhile, the audio controller 17 transmits a key signal according to the driver's selection to the hands free unit 11 through the audio interface unit 16.

The key input unit 18 provides various key signals according to the driver's selection.

The power detector 19 detects an ON-OFF state such as an ACC power source or an on power source in real time, and transmits detection information to the audio controller 17.

The speaker 4 converts an electric signal received from the audio controller 17 into a voice signal, and amplifies and outputs the voice signal.

The electrical signal is a signal including voice information and ring information.

3 is a flowchart schematically illustrating a hands-free control method according to a first embodiment of the present invention.

Referring to FIG. 3, the hands-free control unit 13 checks whether a call signal is received from the mobile phone connected to the hands-free unit 11 (S1), and when the call signal is received, includes the hands-free mode information in the call signal. It transmits to the audio interface unit 16 through the interface unit 14 (S2).

The audio interface unit 16 transmits a call signal including hands-free mode information received from the hands-free interface unit 14 to the audio control unit 17 by wire or wirelessly, and the audio control unit 17 of the key input unit 18 Various keys are converted from the audio mode to the hands-free mode (S3).

The audio controller 17 outputs the voice information included in the call signal received from the hands free unit 11 through the speaker 4.

If a key signal according to the driver's selection is received from the key input unit 18, the audio control unit 17 transmits the key signal to the audio interface unit 16 (S4).

The audio interface unit 16 transmits the received key signal to the hands-free interface unit 14 (S5).

For example, the key signal may be a volume key signal for adjusting the volume of the call signal received from the mobile phone.

The hands free interface unit 14 transmits the key signal received from the audio interface unit 16 to the hands free control unit 13.

The hands-free control unit 13 amplifies or reduces the call signal received from the input unit 12 according to the received key signal, and transmits the signal to the hands-free interface unit 14 (S6).

The hands free interface 14 transmits the received amplified or reduced call signal to the audio interface unit 16, and the audio interface unit 16 transmits the call signal to the audio controller 17 and is output to the speaker 4. (S7).

4 is a block diagram schematically illustrating a hands-free control system according to a second embodiment of the present invention.

Referring to FIG. 4, the car audio system 10 of the hands free control system includes a hands free unit 11, a data communication unit 20, and an audio unit 16.

The hands free unit 11 includes an input unit 12, a hands free control unit 13, and a hands free interface unit 14.

In addition, the audio unit 15 includes an audio interface unit 16, an audio control unit 17, a key input unit 18, and a power detection unit 19.

The data communication unit 20 is an interworking device for communication between the hands free unit 11 and the audio 15, and the audio unit 15 may process a call signal including hands free mode information received from the hands free interface unit 14. The signal is converted into a signal in a format that can be transmitted to the audio interface unit 16 by wire or wirelessly.

The data communication unit 20 receives the key signal received from the audio control unit 17 from the audio interface unit 16, converts the signal into a signal that can be processed by the hands free control unit 13, and hands-free by wire or wirelessly. Transfer to the interface unit 14.

Description of the same reference numerals as those in the first embodiment will be omitted.

5 is a flowchart schematically illustrating a hands-free control method according to a second embodiment of the present invention.

Referring to FIG. 5, the hands-free control unit 13 checks whether a call signal is received from the mobile phone connected to the hands-free unit 11 (S10), and when the call signal is received, includes the hands-free mode information in the call signal. The data is transmitted to the data communication unit 20 through the interface unit 14 (S11).

The data communication unit 20 converts the call signal of the first format including the hands-free mode information received from the hands-free interface unit 14 into a second format that the audio control unit can process, and converts the converted call signal into a wired or wireless audio. The data is transmitted to the interface unit 16 (S12).

When the audio interface unit 16 receives a call signal including hands-free mode information from the data communication unit 20, the audio control unit 18 converts various keys of the key input unit 18 from the audio mode to the hands-free mode ( S13).

The audio controller 17 outputs the voice and ring information included in the call signal received from the hands free unit 11 through the speaker 4.

On the other hand, when the key signal according to the driver's selection is received from the key input unit 18, the audio control unit 17 transmits the received key signal to the audio interface unit 16 (S14).

The audio interface unit 16 transmits the received key signal to the data communication unit 20 (S15).

The data communication unit 20 converts the received key signal from the second format into the first format that the hands-free control unit 13 can process, and transmits the converted key signal to the hands-free interface unit 15 by wire or wirelessly ( S16).

The hands free interface unit 14 transmits the key signal received from the data communication unit 20 to the hands free control unit 13.

For example, the key signal may be a volume key signal for adjusting the volume of the call signal received from the mobile phone.

The hands-free control unit 13 amplifies or reduces the call signal received from the input unit 12 according to the key signal including the received volume information, and transmits the signal to the hands-free interface unit 14 (S17).

The hands-free interface 14 transmits the received call signal to the audio interface unit 16, and the audio interface unit 16 transmits the call signal to the audio control unit 17 so as to be output to the speaker 4 (S18). ).

6 is a flowchart schematically illustrating a hands-free control method according to a third embodiment of the present invention.

Referring to FIG. 6, the hands free control unit 13 detects a connection state between the mobile phone and the hands free unit 11.

If the hands-free control unit 13 is not connected to the cellular phone and the hands-free unit 11, the hands-free unit 11 is initialized (S30).

However, if the mobile phone and the hands-free unit 11 are connected, the hands-free control unit 13 transmits the phone detection signal to the hands-free interface unit 14 (S31).

The hands-free interface unit 14 transmits the received phone detection signal to the audio control unit 17 through the audio interface unit 16 (S32).

On the other hand, when the audio control unit 17 receives the phone detection signal, the power detection unit 19 of the audio control unit 17 detects the ON-OFF of the power for each type in the vehicle and transmits the detection information to the audio control unit 17. (S33).

When the audio controller 17 receives a phone detection signal from the audio interface unit 16 and receives a signal including on-power detection information from the power detection unit 19 (S34), the audio control unit 17 The voice message including the lost notification information is transmitted to the speaker 4 to be output (S35).

Although the preferred embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that the present invention may be modified without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

As described above, according to the present invention, the handsfree is mounted as a module inside the car audio, and the hands free is controlled by various keys provided in the car audio system, thereby reducing the trouble of key manipulation, miniaturization of parts, and space activities in the vehicle. There is also an advantage to increase.

Claims (10)

In the hands-free control system connected to the mobile phone, A hands-free unit including hands-free mode information included in the call signal received from the mobile phone, amplifying or reducing the call signal according to the received key signal, and wirelessly transmitting the call signal; And Hands-free including an audio unit for converting to a hands-free mode according to the hands-free mode information included in the call signal received from the hands-free unit, outputting voice information according to the call signal, and providing a key signal according to a driver's selection to the hands-free unit. Control system. The method of claim 1, wherein the key signal is Hands free control system, characterized in that the volume up (UP) or volume down (DOWN) key signal. The method of claim 1, wherein the hands free unit, A hands-free control unit configured to amplify or reduce the call signal according to the key signal received from the audio unit; And And a hands-free interface unit which transmits the call signal to the audio unit by wire or wirelessly and transmits the key signal received wirelessly or by wire from the audio unit to the hands-free control unit. The method of claim 1, wherein the audio unit, An audio control unit for outputting voice information according to the call signal received from the hands free unit and transmitting the key signal to the hands free unit; And And an audio interface unit configured to transmit a call signal received from the hands free unit to the hands free unit by wire or wirelessly, and to transmit the key signal to the hands free unit. In the hands-free control system connected to the mobile phone, A hands-free unit including a hands-free mode information in a call signal received from the mobile phone to provide a signal of a first format and converting the call signal according to the received key signal; An audio unit converts to a hands-free mode according to hands-free mode information included in the call signal received from the hands-free unit, outputs voice information according to the call signal, and transmits a key signal of a second format according to a driver's selection. ; Converts a signal of the first format provided from the hands-free unit into a signal of the second format and transmits the signal of the second format provided from the audio unit to the first format and converts the signal of the second format to the first format. Hands-free control system including a data communication unit for transmitting by wire or wireless. delete In the signal processing method of the hands-free control system connected to the mobile phone, Including hands-free mode information in the call signal received from the mobile phone and transmitting the same to the audio unit; Converting to the hands-free mode according to the hands-free mode information included in the call signal received by the audio unit, and outputting voice information according to the call signal; Wirelessly transmitting the received key signal to the hands-free unit; And processing a call signal according to a key signal received by the hands free unit and wirelessly transmitting the signal to the audio unit. The method of claim 7, wherein the call signal processing, And the hands free unit amplifies or decreases a call signal according to a key signal received from the audio unit. delete In the signal processing method of the hands-free control system connected to the mobile phone, Transmitting a call signal according to a first format to the data communication unit by including hands-free mode information in the received call signal; Converting a signal of a first format received by the data communication unit into a signal of a second format that an audio unit can process and transmitting the signal to an audio unit; Switching from an audio mode to a hands-free mode according to a call signal received by the audio unit, outputting a voice signal according to the call signal, and transmitting a key signal of a second format according to a driver's selection to the data communication unit; Converting a key signal of a second format received by the data communication unit into a signal of a first format and transmitting the signal to the hands-free unit; And converting a call signal received from the mobile phone according to a key signal received by the hands free unit.

Images