Strengthen implementation method and the wireless headphone system of vehicle mounted communication privacy
Technical field
The present invention relates to a kind of car phone communication technical field, particularly a kind of implementation method and wireless headphone system of strengthening the vehicle mounted communication privacy.
Background technology
Driving is made a phone call, and is breakneck behavior, and therefore, the cars on hand mounted terminal has the bluetooth cellular phone docking technique, and while namely using conventional car handsfree conversation, the conversation sound of far-end is broadcasted by the loud speaker in car.Ruo Chenei has the second people to take advantage of altogether a car, the privacy of conversation completely without.Therefore, how to guarantee that the privacy that the car owner converses is numerous car owners' demand.
Summary of the invention
The purpose of this invention is to provide a kind of implementation method of strengthening the vehicle mounted communication privacy, can effectively improve the privacy of vehicle mounted call, and do not affect car owner's driving.
The present invention adopts following scheme to realize: a kind of implementation method of strengthening the vehicle mounted communication privacy, it is characterized in that: by a wireless headset, trigger a switch, when earphone uses, described switch disconnects the output of the audio frequency of car-mounted terminal and internal loudspeaker, and this audio frequency is sent to described wireless headset through a radio frequency sending set; When earphone did not use, described switch disconnected the output of the audio frequency of car-mounted terminal and radio frequency sending set, and audio frequency is broadcasted through internal loudspeaker.
In an embodiment of the present invention, described switch is arranged in an earphone base, and when described wireless headset is placed on described earphone base, described switch disconnects the output of the audio frequency of car-mounted terminal and radio frequency sending set; When described wireless headset leaves described earphone base, described switch disconnects the output of the audio frequency of car-mounted terminal and internal loudspeaker.
Another object of the present invention is to provide a kind of wireless headphone system of strengthening the vehicle mounted communication privacy.
The present invention adopts following scheme to realize: a kind of wireless headphone system of strengthening the vehicle mounted communication privacy, comprise car-mounted terminal and a wireless headset, it is characterized in that: also comprise a switch, when described switch uses at described wireless headset, the audio output of car-mounted terminal is connected with the input of a radio frequency sending set; Described radio frequency sending set sends to described wireless headset with voice signal through modulation; When described switch does not use at described wireless headset, the audio output of car-mounted terminal is connected with internal loudspeaker.
In an embodiment of the present invention, described radio frequency sending set is included as power circuit and the audio signal input circuit of this radio frequency sending set power supply; Described audio signal input circuit is connected with a radio-frequency antenna through signal modulation circuit, baseband circuit, radio-frequency transmissions circuit successively.
In an embodiment of the present invention, described wireless headset is included as power circuit and the antenna of this wireless headset power supply; Described antenna is connected with earphone horn through radio-frequency transmitter, baseband circuit, audio signal demodulator, audio frequency output successively.
In an embodiment of the present invention, also comprise that one is used for placing the earphone support of described wireless headset, described switch is arranged on described earphone support, also is provided with described wireless headset charging circuit and described radio frequency sending set charging circuit on described earphone support.
Method and system of the present invention is not only simple, easily realizes, and can effectively improve the privacy of vehicle mounted call, and do not affect car owner's driving, has improved the fail safe that the car owner drives.
Description of drawings
Fig. 1 is embodiment of the present invention hardware connection diagram.
Fig. 2 is embodiment of the present invention radio frequency sending set circuit catenation principle schematic diagram.
Fig. 3 is embodiment of the present invention wireless earphone circuit catenation principle schematic diagram.
Fig. 4 is embodiment of the present invention earphone support bottom circuit arrangement schematic diagram.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
The embodiment of the present invention provides a kind of implementation method of strengthening the vehicle mounted communication privacy, it is characterized in that: by a wireless headset, trigger a switch, when earphone uses, described switch disconnects the output of the audio frequency of car-mounted terminal and internal loudspeaker, and this audio frequency is sent to described wireless headset through a radio frequency sending set; When earphone did not use, described switch disconnected the output of the audio frequency of car-mounted terminal and radio frequency sending set, and audio frequency is broadcasted through internal loudspeaker.
Above-mentioned radio frequency sending set is included as power circuit and the audio signal input circuit of this radio frequency sending set power supply; Described audio signal input circuit is connected with a radio-frequency antenna through signal modulation circuit, baseband circuit, radio-frequency transmissions circuit successively.
Same, please refer to Fig. 1, the embodiment of the present invention also provides a kind of wireless headphone system of strengthening the vehicle mounted communication privacy, comprise car-mounted terminal and a wireless headset, it is characterized in that: also comprise a switch, when described switch uses at described wireless headset, the audio output of car-mounted terminal is connected with the input of a radio frequency sending set; Described radio frequency sending set sends to described wireless headset with voice signal through modulation; When described switch does not use at described wireless headset, the audio output of car-mounted terminal is connected with internal loudspeaker.
Please refer to Fig. 2, radio frequency sending set described in figure is included as power circuit and the audio signal input circuit of this radio frequency sending set power supply; Described audio signal input circuit is connected with a radio-frequency antenna through signal modulation circuit, baseband circuit, radio-frequency transmissions circuit successively.It is mainly realized and will be modulated on radio-frequency carrier from the audio signal that car-mounted terminal passes, and by antenna transmission, goes out.
Please refer to Fig. 3, the wireless headset described in figure is included as power circuit and the antenna of this wireless headset power supply; Described antenna is connected with earphone horn through radio-frequency transmitter, baseband circuit, audio signal demodulator, audio frequency output successively.It is mainly to accept the radiofrequency signal of by audio signal, being modulated of being sent by radio frequency sending set, by the signal demodulation, delivers to earphone.
Please refer to Fig. 4, system of the present invention also comprises that one is used for placing the earphone support of described wireless headset, and described switch is arranged on described earphone support, also is provided with described wireless headset charging circuit and described radio frequency sending set circuit on described earphone support.It mainly realizes distributing from the audio signal of car-mounted terminal output according to the position of wireless headset, gives the wireless headset charging with radio-frequency transmitter, the operating state of giving radio frequency sending set Power supply and control transmitter: emission, dormancy and outage etc.Be noted that, the contour structures of earphone support of the present invention is owing to being conventional structure, and can be according to user's hobby design, therefore, the present invention does not describe its profile in detail, its main technical point is that the interaction that can realize wireless headset and switch gets final product, and does not just elaborate here.
Can sum up, in preferred embodiment of the present invention, its method and system is switch of series winding between car-mounted terminal and internal loudspeaker.Switch is mounted in support with the radio frequency receiver earphone.On off state is relevant to the position of earphone.Not requiring conversation privacy and non-talking state, is in the earphone support with the earphone of radio frequency receiver, and K switch 1 is normally off, and K switch 2 is normally opens, and voice signal is directly by car-mounted terminal, to be transferred to internal loudspeaker.When requiring privacy conversation to occur, leave the earphone support with the earphone of radio frequency receiver, K switch 1 becomes normally open, and K switch 2 be normally off, and cut-out is transferred to the voice signal of internal loudspeaker by car-mounted terminal.And voice signal is passed to a radio frequency sending set by car-mounted terminal.In transmitter, voice signal is modulated on radio-frequency carrier, from antenna, spreads out of.Earphone antenna receives the radio-frequency carrier of modulation, demodulation in radio-frequency transmitter, and restoring acoustical signal, and give earphone, thus realize the privacy conversation.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.