CN103200483A - Bluetooth headset of capacitance distance sensing switch control and vehicle provided with headset - Google Patents

Abstract

The invention relates to a vehicle Bluetooth headset, in particular to a Bluetooth headset of capacitance distance sensing switch control and further relates to a vehicle provided with the headset. A button and microphones are arranged on a side wall of the Bluetooth headset and charged through a minitype generally-used universal serial bus (USB), a loudspeaker is connected with a power amplifier, and a capacitance distance sensor is arranged in the Bluetooth headset. The Bluetooth headset of the capacitance distance sensing switch control can be freely switched between private answering and hands-free cell phone conversation and also can be switched manually. The capacitance distance sensor arranged in the headset is used for detecting whether a user wears the headset or not and then user answering methods can be controlled automatically. The minitype generally-used USB is quick and efficient in charging time and can charge the Bluetooth headset any time any where.

Description

Capacitive distance is responded to the bluetooth earphone of switching controls and the vehicle of this earphone is housed

Technical field

The present invention relates to a kind of automobile-used bluetooth earphone, particularly a kind of bluetooth earphone of capacitive distance induction switching controls also relates to the vehicle that this bluetooth earphone is housed.

Background technology

Bluetooth earphone is the wireless communication technology of a kind of employing short distance (communication range is in 10 meters)---the high-tech earphone product of Bluetooth technology, it has really realized the wireless penetration of earphone and receiver.Though the scope of the wireless receiving mobile phone of bluetooth earphone can reach 10 meters, in practice, the permissible call scope has only 4-5 rice.And present bluetooth earphone only allows the user to carry out secret to answer, and earphone itself does not possess hand-free function, and this has just brought the problem of three aspects: the first, on the comfortableness, the user has worn for a long time and can produce sense of fatigue; The second, unhealthful on, the user uses an ear for a long time, can cause hearing to descend, extended telephone conversation also can cause symptoms such as tinnitus, dizziness; Three, influence on the driving vision, need driver's health to keep relative stability when wearing earphone, come off to prevent earphone, it is limited to cause driving the visual angle.

For example application number is 200710301728.8 Chinese invention patent, it discloses a kind of solar charging type Bluetooth earphone device, include the earphone main frame, storage battery, solar cell, the first electric energy transmitter and the second electric energy transmitter, wherein this storage battery can selectively charge with first electric energy transmitter connection external power source, or charged through the second electric energy transmitter by solar cell, to provide two kinds of energy sources that storage battery is charged, and provide the duplicate supply charge mode of earphone main frame, but this bluetooth earphone only allows the user to carry out secret answers, and earphone itself does not possess hand-free function, and the user has worn for a long time and can produce sense of fatigue like this; The user can cause hearing to descend for a long time with an ear, and extended telephone conversation also can cause symptoms such as tinnitus, dizziness; Need driver's health to keep relative stability when wearing earphone, come off to prevent earphone, it is limited to cause driving the visual angle.

For example application number is the Chinese invention patent of 200810216787.X again, it discloses a kind of vehicle-mounted Bluetooth hands-free message equipment and installation method thereof, and it comprises: bluetooth earphone, DSP echo cancellation circuit coupling, power amplification, FM modulating emission circuit, keyboard, microphone; The bluetooth earphone output port links to each other with the DSP echo cancellation circuit coupling, anti-talk-back circuit links to each other with power amplification circuit, power amplification circuit links to each other with the emission of FM frequency modulation, button links to each other with the bluetooth earphone port, microphone links to each other with the DSP echo cancellation circuit coupling, the present invention makes speech quality more perfect owing to adopt DSP echo cancellation technology to suppress environmental noise; The installation method of on-vehicle Bluetooth hand-free call of the present invention setting has overcome the improper of existing installation method, make the on-vehicle hands-free device more convenient operation, it is safer to drive a vehicle, but this bluetooth earphone adopts the Universal USB charging inlet, utilizes cigar lighter to charge, and the charging interval is mostly more than 3 hours, so not only need to connect charging wire, give in the car and cause mixed and disorderly sense, and the charging interval is oversize, bring inconvenience for normal the use.

For example application number is 201110275786.4 Chinese invention patent again, and it discloses a kind of solar charging type Bluetooth earphone, comprises the earphone main frame, also comprises solar cell, power-supply controller of electric, switch and storage battery; Solar cell and power-supply controller of electric electrically connect, and power-supply controller of electric electrically connects by switch and storage battery, and storage battery and earphone main frame electrically connect, and power-supply controller of electric is made of current controller and voltage controller; Beneficial effect is simple in structure, and is efficiently convenient, saved resource, and convenient use for a long time answer but this bluetooth earphone only allows the user to carry out secret, and earphone itself does not possess hand-free function, and the user has worn for a long time and can produce sense of fatigue like this; The user can cause hearing to descend for a long time with an ear, and extended telephone conversation also can cause symptoms such as tinnitus, dizziness; Need driver's health to keep relative stability when wearing earphone, come off to prevent earphone, it is limited to cause driving the visual angle.

Summary of the invention

Based on the problems referred to above, the invention provides the vehicle that a kind of capacitive distance is responded to the bluetooth earphone of switching controls and this bluetooth earphone is housed, being intended to solve existing bluetooth earphone only allows the user to carry out secret to answer, and earphone itself does not possess hand-free function, this has just brought the problem of three aspects: the first, on the comfortableness, the user has worn for a long time and can produce sense of fatigue; The second, unhealthful on, the user uses an ear for a long time, can cause hearing to descend, extended telephone conversation also can cause symptoms such as tinnitus, dizziness; Three, influence on the driving vision, need driver's health to keep relative stability when wearing earphone, come off to prevent earphone, it is limited to cause driving the visual angle.

For this reason, the present invention adopts following technical scheme.

A kind of bluetooth earphone of capacitive distance induction switching controls, it comprises: the earphone main frame, be provided with the Bluetooth transmission module, carry out the signal transmission with the electronic equipment with other band bluetooth; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive micro universal USB to this charge in batteries; Also comprise micro universal USB, described micro universal USB and described storage battery electrically connect; Described bluetooth earphone inside is provided with the capacitive distance transducer.

Intelligent capacitance distance perspective induction sensor, by rational distance control, can detect the user and whether wear earphone, if the user wears earphone, be to reach predeterminable range between the inner metal pad that arranges of human body skin and earphone, the capacitive distance inductive pick-up just produces a response, sends to data processing chip, and then controls the mode of answering.

Preferably, described micro universal USB can connect the interior cigar lighter of car to carry out the charging to described bluetooth earphone.

General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from micro universal USB being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.

Preferably, but the secondary cell that described storage battery is recharge to be used.

In the such scheme preferably, but the secondary cell that described recharge uses is nickel-cadmium cell.

In the such scheme preferably, but the secondary cell that described recharge uses is Ni-MH battery or lithium battery.

In the such scheme preferably, but the secondary cell that described recharge uses is lithium battery.

Vehicle, it is equipped with bluetooth earphone, and described bluetooth earphone is the bluetooth earphone of above-mentioned arbitrary claim.

Preferably, be provided with a battery charge chip in the described earphone main frame in the such scheme, will be stored in the storage battery from the external electric energy of micro universal USB.

Preferably, also be provided with power conversion chip in the described earphone main frame in the such scheme, for the each several part circuit provides stable reference voltage and output current.

Preferably, two loud speakers are installed on the described earphone main frame in the such scheme, are respectively earpiece speaker and outgoing loudspeaker.Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.

Preferably, described electric power management circuit links to each other with reset circuit in the such scheme, for the earphone main frame provide electrification reset, down reply by cable the position and low-voltage reset.

Preferably, described electric power management circuit also links to each other with power amplification circuit in the such scheme, and power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, and for the user provides enough volumes, reaches outer purpose of putting.

Preferably, described earphone main frame also comprises bluetooth process chip and data processing chip in the such scheme.

Preferably, described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply control in the such scheme.

The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.Preferably, described earphone main frame also comprises radio circuit in the such scheme, realizes transmission and the reception of wireless signal, realizes data communication between bluetooth earphone and mobile phone.

Preferably, described earphone main frame is provided with multiple spot and connects and two microphones in the such scheme.

Preferably, also be furnished with Bluetooth antenna on the described earphone main frame in the such scheme, realize that Bluetooth signal receives and emission.

Preferably, described Bluetooth antenna is at least a in wire antenna or microstrip antenna or array antenna or the horn antenna in the such scheme.

Preferably, described bluetooth process chip links to each other with button with data processing chip in the such scheme, for mutual control is provided between user and the system, realizes operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting.

Preferably, described user's interface also is provided with indicator light in the such scheme, and the combination flashing mode by the different colours indicator light carries out operations such as bluetooth discovery, successful matching, incoming call, charging for the user provide information.

One side more of the present invention provides a kind of solar charging type Bluetooth earphone, and it comprises: the earphone main frame is provided with the Bluetooth transmission module, to realize the transmission of bluetooth; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive external power source to this charge in batteries; Also comprise the solar recharging seat, this cradle is arranged on the side window glass of vehicle by sucker; Described bluetooth earphone inside is provided with light sensor.

The intelligence light sensor, can detect the user and whether wear earphone, if the user wears earphone, be after the user is with earphone, can block photosensitive light inlet, light sensor can produce a level variation like this, data processing chip is the circuit of digital signal by the analog signal conversion of AD(circuit the inside) sampling, compare with pre-set limit, thereby judge whether the user wears earphone, and then control the mode of answering.

Preferably, in the described solar recharging seat polycrystalline silicon solar charging panel is housed.The polycrystalline silicon solar charging panel can be converted to electric energy with solar energy quickly and efficiently, can certainly select mono-crystalline silicon solar charging panel, diversification solar charging panel etc. for use.

General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from solar charging panel being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.

Preferably, but the secondary cell that described storage battery is recharge to be used.

In the such scheme preferably, but the secondary cell that described recharge uses is nickel-cadmium cell.

In the such scheme preferably, but the secondary cell that described recharge uses is Ni-MH battery or lithium battery.

In the such scheme preferably, but the secondary cell that described recharge uses is lithium battery.

Vehicle, it is equipped with bluetooth earphone, and described bluetooth earphone is the bluetooth earphone of above-mentioned arbitrary claim.

Preferably, be provided with a battery charge chip in the described earphone main frame in the such scheme, will be stored in the storage battery from the external electric energy of solar charging panel.

Preferably, also be provided with power conversion chip in the described earphone main frame in the such scheme, for the each several part circuit provides stable reference voltage and output current.

Preferably, two loud speakers are installed on the described earphone main frame in the such scheme, are respectively earpiece speaker and outgoing loudspeaker.Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.

Preferably, described electric power management circuit links to each other with reset circuit in the such scheme, for the earphone main frame provide electrification reset, down reply by cable the position and low-voltage reset.

Preferably, described electric power management circuit also links to each other with power amplification circuit in the such scheme, and power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, and for the user provides enough volumes, reaches outer purpose of putting.

Preferably, described earphone main frame also comprises bluetooth process chip and data processing chip in the such scheme.

Preferably, described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply in the such scheme.

The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.Preferably, described earphone main frame also comprises radio circuit in the such scheme, realizes transmission and the reception of wireless signal, realizes data communication between bluetooth earphone and mobile phone.

Preferably, described earphone main frame is provided with multiple spot and connects and two microphones in the such scheme.

Preferably, also be furnished with Bluetooth antenna on the described earphone main frame in the such scheme, realize that Bluetooth signal receives and emission.

Preferably, described Bluetooth antenna is at least a in wire antenna or microstrip antenna or array antenna or the horn antenna in the such scheme.

Preferably, described bluetooth process chip and data processing chip and button for mutual control is provided between user and the system, are realized operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting in the such scheme.

Preferably, described user's interface also is provided with indicator light in the such scheme, and the combination flashing mode by the different colours indicator light carries out operations such as bluetooth discovery, successful matching, incoming call, charging for the user provide information.

Another aspect of the present invention provides a kind of on-vehicle Bluetooth device of ultrasonic wave automatic switchover voice mode, it comprises power management module, bluetooth module, sound control module, ultrasonic wave module and user interface, wherein, be electrically connected between power management module and bluetooth module, sound control module and the ultrasonic wave module, have signal between bluetooth module, sound control module and three modules of ultrasonic wave module and connect.

Preferably, power management module is connected with external power source, and comprises charging management chip, battery and power supply chip.

Preferably, bluetooth module links to each other with the microphone of outside in above-mentioned arbitrary scheme, and comprises Bluetooth chip, flash chip and communication antenna.

Preferably, the sound control module comprises power amplification chip and loud speaker in above-mentioned arbitrary scheme.

Preferably, user interface is provided with function button and indicator light in above-mentioned arbitrary scheme.

Compatible headset mode and outer mode playback on the on-vehicle Bluetooth device of this ultrasonic wave automatic switchover voice mode, the automatic switchover of conversing sound according to the user demand under the different application scenarios of user, individual privacy and traffic safety have been ensured, user-friendly, satisfy the requirement of traffic law, the generation of minimizing accident.

One side more of the present invention provides a kind of photoinduction switching controls bluetooth earphone, and it comprises: the earphone main frame, be provided with the Bluetooth transmission module, and carry out the signal transmission with the electronic equipment with other band bluetooth; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive micro universal USB to this charge in batteries; Also comprise micro universal USB, described micro universal USB and described storage battery electrically connect; Described bluetooth earphone inside is provided with light sensor.

The intelligence light sensor, can detect the user and whether wear earphone, if the user wears earphone, be after the user is with earphone, can block photosensitive light inlet, light sensor can produce a level variation like this, data processing chip is the circuit of digital signal by the analog signal conversion of AD(circuit the inside) sampling, compare with pre-set limit, thereby judge whether the user wears earphone, and then control the mode of answering.

Preferably, described micro universal USB can connect the interior cigar lighter of car to carry out the charging to described bluetooth earphone.

General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from micro universal USB being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.

Preferably, but the secondary cell that described storage battery is recharge to be used.

In the such scheme preferably, but the secondary cell that described recharge uses is nickel-cadmium cell.

In the such scheme preferably, but the secondary cell that described recharge uses is Ni-MH battery or lithium battery.

In the such scheme preferably, but the secondary cell that described recharge uses is lithium battery.

Vehicle, it is equipped with bluetooth earphone, and described bluetooth earphone is the bluetooth earphone of above-mentioned arbitrary claim.

Preferably, be provided with a battery charge chip in the described earphone main frame in the such scheme, will be stored in the storage battery from the external electric energy of micro universal USB.

Preferably, also be provided with power conversion chip in the described earphone main frame in the such scheme, for the each several part circuit provides stable reference voltage and output current.

Preferably, two loud speakers are installed on the described earphone main frame in the such scheme, are respectively earpiece speaker and outgoing loudspeaker.Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.

Preferably, described electric power management circuit links to each other with reset circuit in the such scheme, for the earphone main frame provide electrification reset, down reply by cable the position and low-voltage reset.

Preferably, described electric power management circuit also links to each other with power amplification circuit in the such scheme, and power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, and for the user provides enough volumes, reaches outer purpose of putting.

Preferably, described earphone main frame also comprises bluetooth process chip and data processing chip in the such scheme.

Preferably, described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply control in the such scheme.

The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.Preferably, described earphone main frame also comprises radio circuit in the such scheme, realizes transmission and the reception of wireless signal, realizes data communication between bluetooth earphone and mobile phone.

Preferably, described earphone main frame is provided with multiple spot and connects and two microphones in the such scheme.

Preferably, also be furnished with Bluetooth antenna on the described earphone main frame in the such scheme, realize that Bluetooth signal receives and emission.

Preferably, described Bluetooth antenna is at least a in wire antenna or microstrip antenna or array antenna or the horn antenna in the such scheme.

Preferably, described bluetooth process chip links to each other with button with data processing chip in the such scheme, for mutual control is provided between user and the system, realizes operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting.

Preferably, described user's interface also is provided with indicator light in the such scheme, and the combination flashing mode by the different colours indicator light carries out operations such as bluetooth discovery, successful matching, incoming call, charging for the user provide information.

Description of drawings

Fig. 1 is for according to the bluetooth earphone of capacitive distance according to the present invention induction switching controls and the Design Plans of preferred embodiment of the vehicle of this bluetooth earphone is housed.

Fig. 2 is for according to the bluetooth earphone of capacitive distance according to the present invention induction switching controls and the principle assumption diagram of preferred embodiment of the vehicle of this bluetooth earphone is housed.

Embodiment

Below in conjunction with accompanying drawing with preferred embodiment the present invention is described in further detail.The corresponding relation between the instantiation can following illustration among constitutive requirements and the embodiment in the claim.The intention of the description here is to confirm to have described in an embodiment the instantiation that is used for supporting the theme of stating in the claims, owing to described example in an embodiment, does not mean that this instantiation do not represent constitutive requirements.On the contrary, even comprised instantiation as the element characteristic of corresponding constitutive requirements at this, do not mean that this instantiation do not represent any other constitutive requirements yet.

In addition, the description does not here mean that corresponding to all themes of the instantiation of stating among the embodiment and has all quoted in the claims.In other words, this entity is not denied in the description here, i.e. the instantiation that comprises of corresponding embodiment, but be not included in its any one claim, that is and, correction that can be afterwards is by division and application or the entity that may invent that increases.

Should be noted in the discussion above that " system " means the processing that is made of two or more equipment at this.

Apparently, user terminal can be made of personal computer.In addition, described user terminal can also be by for example cell phone, any other PDA(personal digital assistant) instrument, AV(audio frequency and video) device, such as the CE(consumer-elcetronics devices of home electric (household electricity gasification) equipment) etc. formation.

" network " means the mechanism that has connected two equipment at least, and therein, an information can send to another equipment from an equipment.The equipment of setting up communication via network can be separated from one another, also can be the internal module that constitutes a machine.

" communication " can represent radio communication and wire communication.Yet, can also be communicating by letter of hybrid wireless and wire communication, more specifically, take radio communication at certain section and take the communication of wire communication at another section.Equally, it also can be such communication: the communication from an equipment to another equipment is wired, and rightabout communication is wireless.

Fig. 1 is for according to the bluetooth earphone of capacitive distance according to the present invention induction switching controls and the Design Plans of preferred embodiment of the vehicle of this bluetooth earphone is housed.Bluetooth earphone among the present invention satisfies the hook design of ergonomics uniqueness, makes the user it can be hung on the ear, carries out the conversation of bluetooth secret; Also can take off be clipped on the sunshading board, on the clothes or other fixed positions, carry out the bluetooth handsfree conversation.Overall volume is little, and is in light weight, takes into full account the user and experiences.Button is designed to graphical projection, and the user can blindly touch, the convenient use.

It is that bluetooth earphone charges that an aspect of of the present present invention provides by micro universal USB, and its course of work is: bluetooth earphone need charge by micro universal USB, and the earphone main frame is provided with the Bluetooth transmission module, to carry out the signal transmission with electronic installation; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive micro universal USB to the charging of this storage battery.

Bluetooth earphone among the present invention is equipped with the big capacity lithium polymer battery of 300-500mA, guarantees that each battery is full of, and the user can normal talking at least 5 hours, and the charging interval, rapidly and efficiently micro universal USB can be charging bluetooth earphone whenever and wherever possible.

A second aspect of the present invention is that the bluetooth earphone of this capacitive distance induction switching controls also has hands-free function, when incoming call, the button of pressing on the bluetooth can be conversed, the user needn't re-use mobile phone and answer, the other side's sound is transferred on the bluetooth handsfree device automatically by mobile phone, user's sound carries out processing such as echo cancellation, encoding and decoding by microphone through hands-free device of the present invention, re-sends to mobile phone and sends to the other side through mobile phone GSM network, finishes hands-free work.

A third aspect of the present invention is that this bluetooth earphone main frame is provided with the capacitive distance transducer, by rational distance control, can detect the user and whether wear earphone, if the user wears earphone, be to reach predeterminable range between the inner metal pad that arranges of human body skin and earphone, the capacitive distance inductive pick-up just produces a response, sends to data processing chip, and then controls the mode of answering.

As shown in Figure 2, adopt micro universal USB as power supply among the present invention, the electrical power storage of filling through micro universal USB is in storage battery.Bluetooth earphone of the present invention mainly comprise receive and the emission bluetooth data packets and to digital signal carry out encoding and decoding the bluetooth module circuit unit, be used for the control Bluetooth system the microcontroller circuit unit, the electric power management circuit of stable working power is provided, audio signal is carried out raisings audio frequency tonequality such as echo cancellation audio frequency processing circuit, be used for loud speaker that audio signal exports, finish the microphone of phonetic entry etc.

The annexation of electric power management circuit and other accessories thereof is in the bluetooth earphone of the present invention: the bluetooth module circuit unit includes the radio-frequency (RF) transmit-receive circuit unit, the audio frequency processing circuit unit, the audio frequency processing circuit unit is by coding, decoding circuit and power amplification circuit are formed, be to connect like this between them, radio-frequency receiving-transmitting treatment circuit in the bluetooth module circuit unit is connected with audio treatment unit, the microphone output interface is connected with audio treatment unit, power amplification circuit respectively with output loud speaker and audio treatment unit in coding, decoding circuit connects, the microcontroller circuit unit respectively with the bluetooth module circuit unit in the radio-frequency receiving-transmitting treatment circuit and the coding and decoding circuit of audio treatment unit be connected, the electric power management circuit unit has with described each several part circuit and is connected.

After bluetooth earphone of the present invention and the pairing of corresponding mobile phone arrange, the user starts shooting at every turn, bluetooth will be searched for corresponding configuration information automatically, automatically match with user's mobile phone, when incoming call, the user can answer and refuse by the control of button or voice, can be by button or voice control behind the end of conversation, also possess functions such as the end number redials, phonetic dialing.

Electric power management circuit provides stable voltage for the each several part circuit, satisfies Bluetooth chip simultaneously to the requirement of load response and noise suppressed.General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from micro universal USB being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.

Reset circuit is that the reliability service of system provides safeguard, can realize electrification reset, down reply by cable the position, low-voltage resets; User's interface is for providing mutual control between user and the system, realize operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting.Two indicator lights are red and blue, by different combination flashing modes, for operations such as user's bluetooth discovery, successful matching, incoming call, charging provide information.

Intelligent capacitance distance perspective induction sensor, by rational distance control, can detect the user and whether wear earphone, if the user wears earphone, be to reach predeterminable range between the inner metal pad that arranges of human body skin and earphone, the capacitive distance inductive pick-up just produces a response, sends to data processing chip, and then controls the mode of answering.

Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.

Bluetooth earphone of the present invention is provided with Mike 1 and Mike 2, Mike 1 and Mike 2 gather the voice signal that the user sends, change it into audio signal, by the noise elimination pure audio signal is sent to the bluetooth process chip, the bluetooth process chip is carried out further processing such as filtering, coding again, makes tonequality better.

Radio-frequency (RF) front-end circuit realizes transmission and the reception of wireless signal, by unified short range links, realizes between bluetooth earphone and mobile phone flexibly, safety, cost is low, power consumption is little voice communications versus data communications.Bluetooth antenna is the interface unit between radiofrequency signal and the space electromagnetic wave, is to realize that Bluetooth signal receives and the parts of emission.Antenna of a great variety mainly is divided into numerous types such as wire antenna, microstrip antenna, array antenna, horn antenna.

The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.

Foregoing detailed description has been illustrated the various embodiment of system and/or process by embodiment and/or schematic diagram.With regard to these schematic diagrames and/or comprise with regard to one or more functions and/or the operation, it will be understood by those skilled in the art that each function among these schematic diagrames or the embodiment and/or operation all can by various hardware, software, firmware or in fact its combination in any come individually and/or jointly realize.

Should be appreciated that method described herein can combined with hardware or software, or realize in conjunction with both combination in due course.Therefore, method of the present invention, can adopt and be included in such as the program code in the tangible mediums such as floppy disk, CD-ROM, hard disk drive or any other machinable medium (namely, instruction) form, wherein, when program code under the situation that programmable calculator is carried out, computing equipment generally includes processor, readable storage medium (comprising volatile memory and/or memory element), at least one input equipment and at least one output equipment of this processor.One or more programs can be for example, and by using API, reusable control waits to realize or utilize the process of describing in conjunction with the present invention.Such program preferably realizes with high level procedural or Object-Oriented Programming Language, to communicate by letter with computer system.Yet if desired, this program can realize with assembler language or machine language.In any case, language can be compiler language or interpretative code, and realizes combining with hardware.

Need to prove that the bluetooth earphone of capacitive distance of the present invention induction switching controls and the category of scheme that the vehicle of this bluetooth earphone is housed include but not limited to the combination in any between the each part mentioned above.

Although illustrate and described the present invention with reference to its preferred embodiment particularly, those skilled in the art will appreciate that the various changes on the form of to make and the details and do not break away from the scope of the present invention described in the appended claims.Abovely describe in detail in conjunction with specific embodiments of the invention, but be not to be limitation of the present invention.Any simple modification that every foundation technical spirit of the present invention is done above embodiment all still belongs to the scope of technical solution of the present invention.

Claims (10)

1. the bluetooth earphone of capacitive distance induction switching controls, it comprises:

The earphone main frame is provided with the Bluetooth transmission module, carries out the signal transmission with the electronic equipment with other band bluetooth;

Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage;

Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy;

Power supply supply interface electrically connects with this storage battery, to receive external power source to this charge in batteries;

It is characterized in that: also comprise micro universal USB, described micro universal USB and described storage battery electrically connect; Described bluetooth earphone inside is provided with the capacitive distance transducer.

2. bluetooth earphone as claimed in claim 1 is characterized in that: described micro universal USB can connect cigar lighter in the car to carry out the charging to described bluetooth earphone.

3. bluetooth earphone as claimed in claim 1 is characterized in that: but the secondary cell that described storage battery uses for recharge.

4. bluetooth earphone as claimed in claim 1 is characterized in that: be provided with a battery charge chip in the described earphone main frame, will be stored in the storage battery from the external electric energy of micro universal USB.

5. bluetooth earphone as claimed in claim 1 is characterized in that: also be provided with power conversion chip in the described earphone main frame, for the each several part circuit provides stable reference voltage and output current.

6. bluetooth earphone as claimed in claim 1 is characterized in that: two loud speakers are installed on the described earphone main frame, are respectively earpiece speaker and outgoing loudspeaker.

7. bluetooth earphone as claimed in claim 1, it is characterized in that: described electric power management circuit links to each other with reset circuit, for the earphone main frame provides electrification reset, replies position and low-voltage by cable down and reset.

8. bluetooth earphone as claimed in claim 1, it is characterized in that: described electric power management circuit also links to each other with power amplification circuit.

9. bluetooth earphone as claimed in claim 1, it is characterized in that: described earphone main frame also comprises bluetooth process chip and data processing chip.

10. bluetooth earphone as claimed in claim 9 is characterized in that: described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply control.

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