CN107666535B - In-vehicle device, in-vehicle device audio output control method, and audio output control system - Google Patents
In-vehicle device, in-vehicle device audio output control method, and audio output control system Download PDFInfo
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- CN107666535B CN107666535B CN201610598989.XA CN201610598989A CN107666535B CN 107666535 B CN107666535 B CN 107666535B CN 201610598989 A CN201610598989 A CN 201610598989A CN 107666535 B CN107666535 B CN 107666535B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
- H04M1/72505—Radio link set-up procedures
- H04M1/72513—On hold, intercom or transfer communication modes
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Abstract
The invention provides a vehicle-mounted device, an audio output control method of the vehicle-mounted device and an audio output control system, wherein the vehicle-mounted device is provided with a communication part for communicating with a mobile phone, a source playing part for playing a source, a control part for interrupting the playing of the source by the source playing part when a hands-free call is carried out by the communication part in the source playing process, a loudspeaker for outputting an audio signal played by the source playing part and a call sound received by the communication part, a detection part for detecting whether the audio signal is in the hands-free call, a switching detection part for detecting whether the audio signal is switched to the mobile phone call when the hands-free call is carried out, and the control part for releasing the interruption of the audio source interrupted in the hands-free call when the hands-free call is switched to the mobile phone call. Therefore, when the hands-free call is switched to the mobile phone call, it is possible to make it difficult for the fellow passenger to hear the call content. Also, the fellow passenger can continue to utilize the audio source during the call.
Description
Technical Field
The present invention relates to an in-vehicle device, an audio output control method, and an audio output control system, and more particularly to an in-vehicle device, an audio output control method, and an audio output control system that enable hands-free calling through connection with a mobile phone.
Background
Many of the vehicle-mounted devices are now equipped with a function of enabling hands-free calling. The mobile phone is connected to the in-vehicle device via bt (bluetooth), and hands-free calling can be realized by a microphone and a speaker on the side of the in-vehicle device. When the mobile phone is connected with the vehicle-mounted equipment and calls from the outside, other sources in playing are interrupted and hands-free conversation is carried out. And when the hands-free call is ended, continuing to play the interrupt source before the hands-free call again. For example, when a radio is played and a call is made from the outside, the sound of the radio is interrupted, and the radio is played again after the hands-free call is ended.
In addition, during the handsfree call, the user may manually switch the call to the mobile phone side and perform the call (mobile phone call) using the mobile phone side microphone and speaker. Particularly, when a fellow passenger is present in the vehicle, when a call is made with a private party who the fellow passenger does not want to hear, the call can be switched to the mobile phone side to make the call. If the vehicle can be parked, the vehicle can be dropped off and the vehicle can be called by the mobile phone.
Patent document 1 discloses that, in order to protect privacy during hands-free calling, the voice of the other party during the calling is suppressed from being heard by the fellow passenger, the speech is output from a speaker dedicated to the driver, and the voice of the audio source, which is an interfering sound, is output from the speaker dedicated to the fellow passenger.
When a call comes, the display of the display screen and the playing of the sound of the audio source are interrupted, and the incoming screen and the incoming voice are output. Or the display picture is divided into two parts, the display picture which is being displayed and the incoming call picture are displayed together, only the audio source in playing is interrupted, and the electric voice is output. In any case, the audio source in the playing process is interrupted, and the interruption is kept until the call is ended.
Therefore, in the hands-free call, when there is a fellow passenger and the fellow passenger does not want to hear the call, the user may switch the call to the mobile phone side to perform the cellular phone call. However, there are problems that: even if the call is switched to the mobile phone side, the in-vehicle device side continues to display the call screen, and the interrupt source continues to maintain the interrupt state. For this reason, the fellow passenger may also hear the call content of the private information. Further, the fellow passenger cannot use the function of the in-vehicle device (the audio source before interruption) during the call.
Documents of the prior art
Patent document 1: japanese laid-open patent publication No. 2004-96664
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to: provided are an in-vehicle device, an audio output control method for the in-vehicle device, and an audio output control system, which make it difficult for a fellow passenger to hear the contents of a call when switching to a mobile phone call during a hands-free call.
In order to solve the above problem, an in-vehicle device according to the present invention includes: a communication unit for communicating with a mobile phone, a source playback unit for playing a source, a control unit for interrupting the playback of the source by the source playback unit when a hands-free call is made by the communication unit during the playback of the source, and a speaker for outputting an audio signal played back by the source playback unit and a call sound received by the communication unit, the speaker comprising: a during-call detection unit that detects whether or not the hands-free call is in progress; a switching detection unit for detecting whether the mobile phone call is switched to when the hands-free call is detected by the call-in-process detection unit; when the switching detection part detects that the hand-free call is switched to the mobile phone call, the control part releases the interruption of the audio source interrupted during the hand-free call.
In order to solve the above problem, an audio output control method for an in-vehicle device according to the present invention includes: a communication step of communicating with a mobile phone; a detection step in call, which detects whether the call is in a hands-free call; a switching detection step of detecting whether to switch to a mobile phone call when the hands-free call is in progress; and a control step of releasing the interruption of the audio source interrupted during the hands-free call when the hands-free call is switched to the mobile phone call.
In order to solve the above problem, an audio output control system according to the present invention includes: a communication unit for communicating with a mobile phone; a during-call detection unit that detects whether or not the hands-free call is in progress; a switching detection part for detecting whether to switch to the mobile phone call when the hands-free call is in progress; and a control unit for releasing the interruption of the audio source interrupted during the hands-free call when the hands-free call is switched to the mobile phone call.
According to the invention, when the hand-free call is switched to the mobile phone call, the fellow passenger can not easily hear the call content. Also, the fellow passenger can continue to utilize the audio source during the call.
Drawings
Fig. 1 is a block diagram showing a configuration of an in-vehicle device according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating control of audio output during hands-free calling on the in-vehicle apparatus side according to the embodiment of the present invention.
Fig. 3 is another flowchart illustrating control of audio output during hands-free calling on the in-vehicle apparatus side according to the embodiment of the present invention.
Fig. 4 is another flowchart illustrating control of audio output during hands-free calling on the in-vehicle apparatus side according to the embodiment of the present invention.
Detailed Description
An in-vehicle device applicable to an embodiment of the present invention is described below with reference to the drawings.
Fig. 1 is a block diagram showing a configuration of an in-vehicle device according to an embodiment of the present invention. The in-vehicle device according to the embodiment of the present invention can perform hands-free calling by communicating with the mobile phone, and can output an audio source such as a radio source or a music source. As shown in fig. 1, the in-vehicle device 20 includes a communication unit 1, an on-call detection unit 2, a switch detection unit 3, a confirmation unit 4, a control unit 5, a door detection unit 6, an audio signal processing unit 7, an operation unit 8, a source playback unit 9, a speaker 10, an audio input unit 11, and a display unit 12.
The communication unit 1 is connected to the mobile phone 30 by BT (bluetooth), and transmits and receives audio signals and control signals necessary for the handsfree phone call by communication with the mobile phone 30 based on hfp (hands Free profile) protocol of BT.
The on-call detection unit 2 detects whether or not the hands-free call is currently in progress. Here, in the case of a hands-free call possible state in which the mobile phone 30 communicates with the control unit 5 via the communication unit 1, when the user receives an incoming call state notification signal from the mobile phone 30 by operating a certain call start button via the operation unit 8, the user starts a call by transmitting a call start signal to the mobile phone 30, receives a call state notification transmitted from the mobile phone 30 via the communication unit 1 and the control unit 5 transmits a hands-free call switching signal to the mobile phone 30 via the communication unit 1, thereby switching the mobile phone 30 and the in-vehicle device 20 to the hands-free call. Therefore, the during-call detection unit 2 detects whether or not the hands-free call is being made by detecting whether or not the hands-free switching signal is transmitted to the mobile phone 30 after receiving the call state notification transmitted from the mobile phone 30 via the communication unit 1.
The during-call detection unit 2 may detect whether or not the hands-free call is ended, whether or not the user has operated the call end button of the operation unit 8 of the in-vehicle device 20, and when the call partner ends the call, the during-call detection unit 2 may receive a call end notification transmitted from the mobile phone 30 via the communication unit 1, and may detect that the call is ended.
When the mobile phone 30 is in the hands-free call from the call state, the in-call detection unit 2 may detect whether or not the hands-free call is in progress by detecting the voice signal received from the communication unit transmitted from the mobile phone 30.
The switching detection unit 3 detects whether the user is switched to the mobile phone call when the on-call detection unit 2 detects that the handsfree call is in progress. For example, in the handsfree phone call, the user presses a phone call switching button on the touch panel of the in-vehicle device 20 to perform a phone call. The switch detection unit 3 detects that the hands-free call is switched to the mobile phone call by detecting that the switch button is pressed. In the hands-free call, the user may press the mobile phone call switching key on the mobile phone 30 side to perform a mobile phone call. At this time, the handover detector 3 detects the handover to the mobile phone call by detecting the received request signal for the mobile phone call handover transmitted from the mobile phone 30.
Before the hands-free call is started, if the source playing part 9 plays the audio source via the audio signal processing part 7 and the loudspeaker 10, the audio source in the playing is interrupted by the control of the control part 5 in the hands-free call.
The confirmation unit 4 is configured to confirm whether or not the source of interruption at the time of starting the handsfree phone call is the audio source when the switching detection unit 3 detects that the handsfree phone call is switched to the mobile phone call during the handsfree phone call.
The control unit 5 is composed of a CPU, ROM, RAM, etc., and performs various controls and processes on the in-vehicle device 20 by a built-in application, and is connected to the communication unit 1, the on-call detection unit 2, the switching detection unit 3, the confirmation unit 4, the door detection unit 6, the audio signal processing unit 7, the operation unit 8, the source playback unit 9, the audio input unit 11, and the display unit 12. The on-call detection unit 2, the switching detection unit 3, and the confirmation unit 5 may be included in the control unit 5. Here, when the handsfree phone call is performed, the audio source being played by the source playing section 9, the audio signal processing section 7, and the speaker 10 is interrupted by the control of the control section 5, and only the talk voice is output via the audio signal processing section 7 and the speaker 10. And when the call is finished, the interruption of the audio source is relieved, and the audio source is continuously played. When the hands-free call is switched to the mobile phone call, the audio processing unit 7 and the speaker 10 restart the audio source playback via the source playback unit 9, and then output through the speaker 10.
The door detection unit 6 detects opening and closing of the door by a sensor. In particular, the opening and closing of the driver side door is detected here.
The audio signal processing unit 7 performs processing of various broadcast signals such as amplification of audio signals, and outputs the processed signals through a speaker 10. Here, signal processing of the hands-free voice input from the communication section 1 and the radio, music source, and the like input from the playback section 9 is performed.
The operation unit 8 receives an operation of the in-vehicle device 20 by a user via a soft key or a hard key of a touch panel integrally configured with the display unit 12. The operation unit 8 includes various operation keys such as a source selection key for selecting an audio source to be played by the source playing unit 9, a call start key or a hang-up key for making a call with a caller when the mobile phone 30 makes a call, and a switching key for making a call with a mobile phone.
The source playing unit 9 is an audio signal playing source, and the source is a music source such as a CD player or a memory function player, a radio source, or the like.
The speakers 10 are mounted on a vehicle, for example, and have two front sides (one near the driver's seat) and two rear sides in the vehicle, and are connected to the audio signal processing unit 7 to output audio signals played by the audio signal processing unit 7.
The voice input unit 11 is constituted by a microphone or the like, and the content of expression of the user at the time of the handsfree call is input by the voice input unit 11, transmitted to the mobile phone 30 via the communication unit 1, and communicable with the other party of the phone.
The display unit 12 is a touch panel integrated with the operation unit 8, and displays screens of various sources and soft keys.
Next, a method of controlling audio output when the mobile phone 30 performs handsfree phone call on the in-vehicle device 20 according to the embodiment of the present invention will be described with reference to the flowchart of fig. 2, the flowchart of fig. 3, and the flowchart of fig. 4.
Example 1
First, a method of controlling audio output when the handsfree phone call is performed on the in-vehicle apparatus 20 will be described with reference to the flowchart of fig. 2. First, the in-vehicle device 20 is connected to the mobile phone 30 through the communication unit 1 for communication (step S101), and then the on-call detection unit 2 detects whether the hands-free call is in progress (step S102). When the hands-free calling is detected (YES in step S102), the switching detection unit 3 detects whether or not the mobile phone call is switched to when the hands-free calling is in progress (step S103). When the hand-free call is detected and the mobile phone call is switched (yes in step S103), the control unit 5 cancels the interruption of the audio source during the hand-free call and the interruption of the output of the audio signal played by the source playing unit 9, and then the audio signal processing unit 7 and the speaker 10 output the played audio signal (step S104). When the hand-free call is not switched to the mobile phone call (no in step S103), the on-call detection unit 2 further detects whether the hand-free call is ended (step S105). When the end of the handsfree phone call is detected (step S105: YES), the process is ended. When it is detected that the hands-free calling is still being performed (step S105: NO), the process returns to step S103.
Next, an example of an output control method of audio at the time of handsfree phone call on the in-vehicle apparatus 20 will be described. For example, when the driver drives the vehicle, the driver is first connected to a mobile phone through the communication unit 1, and the hands-free call state is possible according to the HFP protocol (step S101). Then, the music source is selected by the operation of the operation unit 8, and the audio signal processing unit 7 and the speaker 10 output the broadcast. When a call is made from the outside while driving and a call start button is operated for the incoming call by the operation unit 8, a handsfree call can be performed (step S102). At this time, the sound of the music source being played is interrupted by the control of the control unit 5, and the call sound of the telephone is output from the speaker 10. When there is a fellow passenger in the vehicle and the fellow passenger does not want to hear the private information, the driver switches to the mobile phone call (yes in step S103), and the control unit 5 releases the interruption of the interrupted music source (step S104). As a result, the audio signal processing unit 7 and the speaker 10 continue to output the music source.
The control unit 5 may control the output of the speaker at the driver side so as to reduce the volume of the music being played so as not to affect the driver.
Therefore, when the fellow passenger is present, the voice of the other party of the call is not heard by the fellow passenger, and the speaking voice of the driver is also shielded by the voice of the audio source in the vehicle, so that the fellow passenger cannot hear the contents of the call. In addition, the fellow passenger can continue to use the audio source during the call. Example 2
Next, an output control method of audio at the time of handsfree phone call on the in-vehicle apparatus 20 will be described with reference to the flowchart of fig. 3. Here, the same portions of the flowchart of fig. 3 as those of the flowchart of fig. 2 are omitted from description.
In this embodiment, the in-vehicle device 20 includes a source (not shown) other than the audio source, such as a navigation source (in-vehicle navigation system) that is played by the source playing unit 9. Specifically, when the hand-free call is switched to the mobile phone call during the detection of the hand-free call by the switching detection unit 3 (YES in step S103), the confirmation unit 4 confirms whether or not the source of the interruption is an audio source (step S204). When it is confirmed that the source of the interruption is the audio source (YES in step S204), the interruption of the interrupted audio source is released by the control section 5, and the audio signal processing section 7 and the speaker 10 output the audio source whose playback is interrupted again (step S205). When it is confirmed that the interrupt source is not the audio source (step S204: NO), the music source is played (step S206). Other audio sources may be set to play here as well.
For example, when the vehicle is a fellow passenger, the mobile phone 30 is connected to the in-vehicle device 20 via the communication unit 1, and the hands-free call is switched to the mobile phone call (yes in step S102), and when the interrupt source before the hands-free call is the navigation source (no in step S204), the control unit 5 controls the music source to be played (step S206). Note that, in the determination in step S204, the interruption source before the call is a source other than the audio source, or may be another source other than the navigation source. When the interrupt source is not an audio source, other audio sources such as a radio other than a music source may be played. Further, any one of the audio sources stored in the playback history of the storage unit may be referred to. For example, the nearest audio source is played.
Similarly to embodiment 1, the output volume of the speaker near the driver may be reduced by the control of the control unit 5. In addition, in example 2, the same technical effects as in example 1 can be obtained. Example 3
Next, an output control method of audio at the time of handsfree phone call on the in-vehicle apparatus 20 will be described with reference to the flowchart of fig. 4. Here, the same portions of the flowchart of fig. 4 as those of the flowchart of fig. 1 are omitted from description. Specifically, when the hand-free call is switched to the cellular phone call (YES in step S103) by the switching detection unit 3, the door detection unit 6 detects whether or not the door of the driver is opened (step S304). When the opening of the specific door is detected (yes in step S304), the control unit 5 cancels the interruption of the audio source, and the audio signal processing unit 7 and the speaker 10 output the audio source with the interruption again (step S305). When the opening of the predetermined door is not detected (NO in step S304), the mobile phone call state is continued (step S306), and the process of step S304 is repeated until the mobile phone call is ended to continuously detect whether the door is opened.
For example, when there is a fellow passenger, the mobile phone 30 and the in-vehicle device 20 are connected via the communication unit 1, the hands-free call is switched to the mobile phone call (step S102), the call is made with the important counterpart (yes in step S103), and when the fellow passenger does not want to hear the call and the vehicle is parked and gets off the call (yes in step S304), the control unit 5 cancels the interruption of the interrupted audio source and outputs the audio source again (step S305). Further, even if the interrupt source before the handsfree phone call is not an audio source, other audio sources such as a radio can be played as in embodiment 2.
Embodiment 3 can also obtain the same technical effects as embodiment 1, and further, since the driver stops the vehicle and gets off the vehicle to make a call, the driver's speech sound can be further prevented from being heard by the fellow passenger.
In addition, the steps included in the audio output control method according to each of the above embodiments of the present invention may also be implemented as each part (unit) included in the audio output control system, and the same technical effects are obtained.
As described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.
Claims (8)
1. An in-vehicle device includes a communication unit for communicating with a mobile phone; a source playing part for playing the audio source; a control part for interrupting the audio source played by the source playing part when the communication part is used for hands-free communication in the process of playing the audio source by the source playing part; a speaker for outputting the audio signal played by the source playing unit and outputting the call sound received by the communication unit, the speaker further comprising:
a detection part in call, which detects whether the mobile phone is in the hands-free call when the communication part is in the call with the mobile phone;
a switching detection unit for detecting whether the mobile phone call is switched to when the hands-free call is detected by the call-in-process detection unit;
when the switching detection part detects that the hand-free call is switched to the mobile phone call, the control part releases the interruption of the audio source interrupted during the hand-free call.
2. The vehicle-mounted device according to claim 1, further comprising:
a confirmation part for confirming whether the source interrupted during the hand-free call is the audio source when the hand-free call is detected to be switched to the mobile phone call by the switch detection part,
when the confirmation part confirms that the source of the interruption is the audio source, the control part cancels the interruption of the interrupted audio source and the loudspeaker outputs the audio signal again.
3. The vehicle-mounted device according to claim 2,
when the confirmation unit confirms that the source of the interruption is the audio source, the control unit cancels the interruption of the interrupted audio source, and reduces the volume of the speaker near the driver when the speaker outputs the audio signal again.
4. The vehicle-mounted device according to claim 2,
when the confirmation part confirms that the interrupted source is not the audio source, the switching detection part detects that the hand-free call is switched to the mobile phone call, and the control part controls the source playing part to play the audio source and the loudspeaker to output the audio signal.
5. The vehicle-mounted device according to claim 1, further comprising:
a door detection part for detecting whether the vehicle door is opened or not,
the switching detection part detects that the hand-free call is switched to the mobile phone call, and the control part releases the interruption of the audio source interrupted during the hand-free call when the door detection part detects that the side door of the driver is opened.
6. The vehicle-mounted device according to claim 1,
the audio source is a music source.
7. An audio output control method of a vehicle-mounted device comprises the vehicle-mounted device,
the vehicle-mounted device includes:
a communication unit for communicating with a mobile phone;
a source playing part for playing the audio source;
a control part for interrupting the audio source played by the source playing part when the communication part is used for hands-free communication in the process of playing the audio source by the source playing part;
a speaker for outputting the audio signal played by the source playing unit and outputting the call sound received by the communication unit;
the audio output control method is characterized by comprising the steps of:
a detection step of detecting whether the communication unit is in the hands-free call state when the communication unit is in the call state with the mobile phone; and
a switching detection step of detecting whether the mobile phone call is switched to when the hands-free call is detected in the call detection step,
when the switching to the mobile phone call is detected during the hands-free call in the switching detection step, the control unit cancels the interruption of the audio source interrupted during the hands-free call.
8. An audio output control system includes an in-vehicle device and a mobile phone,
the vehicle-mounted device includes:
a communication unit for communicating with a mobile phone;
a source playing part for playing the audio source;
a control part for interrupting the audio source played by the source playing part when the communication part is used for hands-free communication in the process of playing the audio source by the source playing part;
a speaker for outputting the audio signal played by the source playing unit and outputting the call sound received by the communication unit;
a detection part in call, which detects whether the mobile phone is in the hands-free call when the communication part is in the call with the mobile phone;
a switching detection unit for detecting whether the mobile phone call is switched to when the in-call detection unit detects that the hands-free call is in progress;
when the switching detection part detects that the hand-free call is switched to the mobile phone call, the control part releases the interruption of the audio source interrupted during the hand-free call.
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| CN106339200A (en) * | 2016-08-29 | 2017-01-18 | 联想(北京)有限公司 | Electronic equipment and control method and control device thereof |
| CN110401762B (en) * | 2018-04-24 | 2021-08-10 | 阿尔派株式会社 | In-vehicle device and incoming call notification method for in-vehicle device |
| CN110475180A (en) * | 2019-08-23 | 2019-11-19 | 科大讯飞(苏州)科技有限公司 | Vehicle multi-sound area audio processing system and method |
| CN113194021B (en) * | 2020-01-14 | 2024-03-19 | 阿尔派株式会社 | Electronic device, message play control system and message play control method |
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