CN202634658U - Multifunctional bluetooth earphone - Google Patents

Multifunctional bluetooth earphone Download PDF

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Publication number
CN202634658U
CN202634658U CN 201220203999 CN201220203999U CN202634658U CN 202634658 U CN202634658 U CN 202634658U CN 201220203999 CN201220203999 CN 201220203999 CN 201220203999 U CN201220203999 U CN 201220203999U CN 202634658 U CN202634658 U CN 202634658U
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CN
China
Prior art keywords
module
circuit
earphone
bluetooth
chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220203999
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Chinese (zh)
Inventor
蒋六全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN YUXINXIN ELECTRONICS CO Ltd
Original Assignee
SHENZHEN YUXINXIN ELECTRONICS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN YUXINXIN ELECTRONICS CO Ltd filed Critical SHENZHEN YUXINXIN ELECTRONICS CO Ltd
Priority to CN 201220203999 priority Critical patent/CN202634658U/en
Application granted granted Critical
Publication of CN202634658U publication Critical patent/CN202634658U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a multifunctional bluetooth earphone, comprising an earphone cover, a horn fixed on the earphone cover, and a main control board fixed in the earphone cover; wherein the main control board comprises a bluetooth receiving module circuit, a plug-in card earphone circuit, and a power supply module; the bluetooth receiving module circuit comprises a bluetooth receiving module, a single-chip microcomputer control module, a memory module, a digital analog conversion module, and an audio frequency amplification module; the plug-in card earphone circuit comprises an MP3 digital decoding chip, and a TF (TransFlash) card slot interface circuit; the power supply module is respectively connected with the above portions to provide power. The multifunctional bluetooth earphone provided by the utility model can realize communication with equipment having a bluetooth output function, the multifunctional bluetooth earphone not only can perform voice communication, but also can broadcast a stereo music in a wireless way, in addition, the multifunctional bluetooth earphone has a good transmission effect, thereby facilitating a non-touch operation to the equipment having the bluetooth output function; at the same time, the multifunctional bluetooth earphone of the utility model has the plug-in card earphone circuit, thus a user can enjoy a large number of music by plugging in an external card.

Description

A kind of multifunction blue-tooth earphone
Technical field
The utility model relates to the bluetooth earphone circuit field, relates in particular to a kind of multifunction blue-tooth earphone.
Background technology
Present existing bluetooth earphone is a kind of to be only to support 1.1,1.2 versions, can only carry out voice call; A kind of is above versions such as 2.0 of compatible 1.1,1.2 versions, can carry out voice call can broadcast stereo music with wireless mode again; But the function that does not have the MP3 walkman.
Present existing plug-in card earphone also only has the function of plug-in card playing back music simultaneously, does not have Bluetooth function, and supporting use can not be connected with the equipment that the bluetooth output function is arranged.
The existing advantage separately of said two products also has weak point simultaneously.When listening to the music, can worry not expansion and cause internal memory song or will often change the battery worry very little of mobile phone for the expense of listening to the music with mobile phone is electric with the supporting bluetooth earphone of mobile phone.Though above-mentioned plug-in card earphone can be enjoyed the magnanimity music, it can not be connected with bluetooth equipment and converse in real time.
Summary of the invention
The purpose of the utility model is to provide a kind of multifunction blue-tooth earphone, can carry out voice call and can enjoy the magnanimity music again.
The purpose of the utility model realizes through following technical scheme.
A kind of multifunction blue-tooth earphone comprises: ear casing, and be fixed in the loudspeaker on the ear casing and be fixed in the master control borad in the ear casing, include bluetooth receiver module circuit and plug-in card head circuit, power module on the said master control borad; Said bluetooth receiver module circuit comprises the bluetooth receiver module, single chip control module, memory module, D/A converter module, audio frequency amplification module; Said plug-in card head circuit comprises MP3 digital decoding chip, TF draw-in groove interface circuit; Said power module links to each other with each part mentioned above respectively, and power supply is provided.
Preferably, said bluetooth receiver module circuit also comprises a RF switch and RF Amplifier Module, and said RF switch and RF Amplifier Module are connected between said single chip control module and the antenna.
Preferably, also comprise the crystal oscillator that is connected with single chip control module and MP3 digital decoding chip respectively on the said master control borad.
Preferably, also comprise the LED signal lamp that is connected with single chip control module and MP3 digital decoding chip respectively on the said master control borad.
Preferably, also comprise the key matrix circuit that is connected with single chip control module and MP3 digital decoding chip respectively on the said master control borad, said key matrix circuit includes time-out/broadcast button, and last one song/volume adds button and next song/volume down button.
Preferably, said bluetooth receiver module circuit also comprises the MIC pick-up head that is connected with the single chip control module signal input part.
The utility model compared with prior art; Beneficial effect is: the multifunction blue-tooth earphone circuit that the utility model provides can be realized and have the equipment (like mobile phone) of bluetooth output function to carry out communication; Can carry out voice call and can broadcast stereo music with wireless mode again; Laser propagation effect is good, is convenient to the equipment (like mobile phone) that the bluetooth output function is arranged is carried out the operation of no touch formula; It also has the plug-in card circuit simultaneously, can enjoy MP3 walkman magnanimity music through inserting external card.
Description of drawings
Fig. 1 is the utility model bluetooth receiver module circuit block diagram;
Fig. 2 is the utility model plug-in card head circuit block diagram.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model multifunction blue-tooth earphone includes ear casing, is fixed in the loudspeaker on the ear casing and is fixed in the master control borad in the ear casing, includes bluetooth receiver module circuit and plug-in card head circuit, power module 11 on the said master control borad.
See also shown in Figure 1; The utility model bluetooth receiver module circuit comprises the bluetooth receiver module; Single chip control module 10 (comprising CPU and RF receiving demodulation module), memory EEPROM module 20, D/A converter module 12, audio frequency amplification module 13; Wherein power module 11 links to each other with each several part, and power supply is provided.Said EEPROM module 20 is connected in the control end of said single chip control module, has possessed channel storage and channel selection function.
Bluetooth receiver module circuit also comprises a RF switch 21 and RF Amplifier Module 23; Said RF switch 21 and RF Amplifier Module 23 are connected between said single chip control module 10 and the antenna 24; Said RF switch 21 is connected with the control end of said single chip control module 10 with RF Amplifier Module 23 control ends; The audio signal of the raising frequency of launching by outside tone playing equipment that said RF switch 21 and RF Amplifier Module 23 are used for antenna 24 is received; The RF receiving demodulation module that audio signal carries out sending in the coupled embedded scm control module 10 that connects (comprising CPU and RF receiving demodulation module) after RF switch control and the processing and amplifying is carried out demodulation; Send into the coupled D/A converter module that connects 12 after the demodulation and carry out the amplitude adjusting; 10 (the comprising CPU and RF receiving demodulation module) of control end connection embedded scm control module of said D/A converter module 12, receive the signal that warp is decoded from single chip control module 10.
Also comprise a crystal oscillator 11 that is connected with embedded scm control module 10 on the said master control borad, crystal oscillator 19 provides the clock work signal of a benchmark for embedded scm control module 10.
Also comprise a LED signal lamp 22 that is connected with the embedded scm control module on the master control borad in this embodiment, the different lighting lamp states of LED signal lamp 22 are represented the different operating state of embedded scm control module 10.LED signal lamp 22 is represented by search condition during with 1 second/inferior flicker; Dodge the state on representing to connect at twice o'clock with 4 seconds companies; Represent to return the equipment that connects once when glimmering with 2 seconds/secondary frequencies.
Time-out/broadcast/to sign indicating number or receive calls/refusing to receive telephone button 16, last one song/volume adds button 17, and next song/volume down button 15 all is connected with embedded scm control module 10 (comprising CPU and RF receiving demodulation module) respectively.When the different operating instruction of three buttons was admitted to three respective detection pin positions of embedded scm control module 10 (comprising CPU and RF receiving demodulation module), embedded scm control module 10 (comprising CPU and RF receiving demodulation module) was confirmed the different operating instruction of three buttons through the change in voltage that detects three pin positions.And pass through simultaneously send after embedded scm control module 10 computing of (comprising CPU and RF receiving demodulation module) one with the signal of telecommunication of implementing the button same instructions, this signal of telecommunication is crossed RF switch 21 and is outwards launched by antenna 24 with audio frequency amplification module 23 circuit.There is the equipment of bluetooth output function (like mobile phone) to receive the radiofrequency signal of this signal through Bluetooth antenna; Middle through demodulation through internal radio frequency switch and audio frequency amplification module to embedded scm control module (comprising CPU and RF receiving demodulation module); Test side among the input CPU; CPU sends corresponding software (or circuit) work that command adapted thereto is controlled the equipment of bluetooth output function (like mobile phone) again through computing after detecting this signal, thereby reaches the non-contact type operation of controlling the equipment of bluetooth output function (like mobile phone) with the operation of three buttons in the master board of bluetooth receiver module.As: squeeze into weak point by 16 buttons as phone, but with regard to incoming call answering; Long by 16 buttons, just can refuse to listen incoming call.In the process of receiving calls, weak point just can increase the earphone horn volume by 17 buttons, and short clicking increases 2 dB, and the like; Weak point just can reduce the earphone horn volume by 15 buttons, and short clicking reduces 2 dB, and the like; When usefulness has the device plays music of bluetooth output function (like mobile phone), short in 16 buttons, just can suspend playing back music; Short in again 16 buttons, but playing back music again, and the like.In the playing back music process, weak point just can increase the earphone horn volume by 17 buttons, and short clicking increases 2 dB, and the like; Weak point just can reduce the earphone horn volume by 15 buttons, and short clicking reduces 2 dB, and the like.Just can play next song with duration by 17 buttons, and the like; Length just can be play a last song by 15 buttons, and the like.
With reference to accompanying drawing 1; Bluetooth receiver module circuit in this embodiment also comprises a MIC pick-up head 18 that is connected with embedded scm control module 10 signal input parts; MIC pick-up head 18 converts the voices that pick up to send in the embedded scm control module 10 (comprising CPU and RF receiving demodulation module) behind the signal of telecommunication to and handles, and is outwards launched by antenna 24 through RF switch 21 and RF Amplifier Module 23 circuit again.There is the equipment of bluetooth output function (like mobile phone) to receive the radiofrequency signal of this signal through Bluetooth antenna; Process internal radio frequency switch and audio frequency amplification module restore people's voice again through the loudspeaker on the promotion bluetooth output equipment (like mobile phone) after demodulation, digital-to-analogue conversion, the amplification in embedded scm control module (comprising CPU and RF receiving demodulation module).Thereby realize the function of two-way call.
The bluetooth receiver module that the utility model adopts adopts the embedded scm chip controls, and stability is higher, and antijamming capability is stronger.Embedded scm chip on the bluetooth receiver module (comprising CPU and RF receiving demodulation module) is with after the equipment that the bluetooth output function is arranged (like mobile phone) is connected; Carry out exchanges data with the CPU of bluetooth output equipment (like mobile phone); And sending into the CPU of bluetooth output equipment (like mobile phone) to the operational order on the bluetooth receiver module receiving terminal, the CPU of bluetooth output equipment (like mobile phone) is through detecting identification and the output of the decoding back operational order with button on the bluetooth output equipment (like mobile phone).Through earphone, do not need that mobile phone is realized receiving calls, on-hook, adjusting volume, phonetic dialing etc.Thereby let you pass through the Bluetooth wireless communication mode, realize seamless bi-directional speech communication function, the enjoyment of enjoying the scientific and technological convenience of bringing simultaneously and conversing heartily.
With reference to accompanying drawing 2; The utility model plug-in card head circuit comprises MP3 digital decoding chip (built-in CPU and digital decoding module) 25, power module 11, TF draw-in groove interface circuit 26, D/A converter module 12, audio frequency amplification module 13; Wherein power module links to each other with each several part respectively, and power supply is provided.
Said TF draw-in groove interface circuit 26 is connected with MP3 digital decoding chip 25 and carries out exchanges data.MP3 digital decoding chip 25 is decoded the audio file of the forms such as MP3/WMA/WAV in the TF card that inserts on the TF draw-in groove interface circuit 26 through the decoding circuit of inside; Send into the coupled D/A converter module that connects 12 after the decoding and carry out the amplitude adjusting; The control end of said D/A converter module 12 connects MP3 digital decoding chip 25, receives the signal of warp decoding from MP3 digital decoding chip 25.
Said MP3 digital decoding chip 25 also is connected with crystal oscillator 19, and crystal oscillator 19 provides the clock work signal of a benchmark for MP3 digital decoding chip 25.
MP3 digital decoding chip 25 in this embodiment also is connected with LED signal lamp 22, and the different lighting lamp states of LED signal lamp 22 are represented the different operating state of MP3 digital decoding chip 25.LED signal lamp 22 is normal to be represented to switch on when bright but the TF card does not insert in the TF draw-in groove interface circuit 26; LED signal lamp 22 quickflashings represent that MP3 digital decoding chip is reading and the TF card of decoding on the audio file of forms such as MP3/WMA/WAV; The audio file that LED signal lamp 22 dodges the forms such as MP3/WMA/WAV on the expression TF card is slowly successfully read and is decoded.
MP3 digital decoding chip also is connected with audio amplifier circuit 13; Between said audio amplifier circuit 13 serial connections and D/A converter module 12 and the loudspeaker 14, the audio signal that it regulated D/A converter module 12 amplitudes is amplified back promotion loudspeaker 14 by certain power and is restored song.
Also comprise the key matrix circuit that is connected with MP3 digital decoding chip 25 in this embodiment, include time-out/broadcast button 16, last one song/volume adds button 17, next song/volume down button 15.Three buttons (time-out/broadcast button 16, last one song/volume adds button 17, next song/volume down button 15) all are connected with the control end of MP3 digital decoding chip 25 respectively.When the different operating instruction of three buttons was admitted to three respective detection pin positions of MP3 digital decoding chip 25, MP3 digital decoding chip 25 was confirmed the different operating instruction of three buttons through the change in voltage that detects three pin positions.And send after the computing through MP3 digital decoding chip 25 simultaneously one with the signal of telecommunication of implementing the button same instructions, thereby this signal of telecommunication is exported through the control pin of MP3 digital decoding chip 25 and is gone to control the purpose that relevant circuit reaches operation; When playing back music, short in 16 buttons, just can suspend playing back music; Short in again 16 buttons, but playing back music again, and the like.In the playing back music process, weak point just can increase the earphone horn volume by 17 buttons, and short clicking increases 2 dB, and the like; Weak point just can reduce the earphone horn volume by 15 buttons, and short clicking reduces 2 dB, and the like.Just can play next song with duration by 17 buttons, and the like; Length just can be play a last song by 15 buttons, and the like.
The built-in superpower decoding capability of MP3 digital decoding chip (built-in CPU and digital decoding module) that the utility model adopts is supported the vast capacity card, and plug and play need not to drive.
Ear casing in the two-in-one earphone of above-mentioned bluetooth+plug-in card; It all is shared being fixed in loudspeaker on the ear casing, three buttons and power supply, earphone be operated in which kind of state (bluetooth and plug-in card) all be through mains switch switch to bluetooth receiver module circuit and the plug-in card circuit supply decides.Power supply is a bluetooth receiver module circuit supply, and earphone just is operated in bluetooth state; Power supply is the plug-in card circuit supply, and earphone just is operated in the plug-in card state.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims (6)

1. a multifunction blue-tooth earphone is characterized in that, comprising: ear casing, and be fixed in the loudspeaker on the ear casing and be fixed in the master control borad in the ear casing, include bluetooth receiver module circuit and plug-in card head circuit, power module on the said master control borad; Said bluetooth receiver module circuit comprises the bluetooth receiver module, single chip control module, memory module, D/A converter module, audio frequency amplification module; Said plug-in card head circuit comprises MP3 digital decoding chip, TF draw-in groove interface circuit; Said power module links to each other with each part mentioned above respectively, and power supply is provided.
2. multifunction blue-tooth earphone as claimed in claim 1; It is characterized in that; Said bluetooth receiver module circuit also comprises a RF switch and RF Amplifier Module, and said RF switch and RF Amplifier Module are connected between said single chip control module and the antenna.
3. multifunction blue-tooth earphone as claimed in claim 2 is characterized in that, also comprises the crystal oscillator that is connected with single chip control module and MP3 digital decoding chip respectively on the said master control borad.
4. multifunction blue-tooth earphone as claimed in claim 2 is characterized in that, also comprises the LED signal lamp that is connected with single chip control module and MP3 digital decoding chip respectively on the said master control borad.
5. multifunction blue-tooth earphone as claimed in claim 2; It is characterized in that; Also comprise the key matrix circuit that is connected with single chip control module and MP3 digital decoding chip respectively on the said master control borad; Said key matrix circuit includes time-out/broadcast button, and last one song/volume adds button and next song/volume down button.
6. multifunction blue-tooth earphone as claimed in claim 2 is characterized in that, said bluetooth receiver module circuit also comprises the MIC pick-up head that is connected with the single chip control module signal input part.
CN 201220203999 2012-05-09 2012-05-09 Multifunctional bluetooth earphone Expired - Fee Related CN202634658U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220203999 CN202634658U (en) 2012-05-09 2012-05-09 Multifunctional bluetooth earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220203999 CN202634658U (en) 2012-05-09 2012-05-09 Multifunctional bluetooth earphone

Publications (1)

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CN202634658U true CN202634658U (en) 2012-12-26

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CN 201220203999 Expired - Fee Related CN202634658U (en) 2012-05-09 2012-05-09 Multifunctional bluetooth earphone

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104780480A (en) * 2014-01-14 2015-07-15 安凯(广州)微电子技术有限公司 Method, device and terminal for controlling music play in TF card of blue-tooth loudspeaker box
CN107431851A (en) * 2015-04-06 2017-12-01 Lg 电子株式会社 Electronic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104780480A (en) * 2014-01-14 2015-07-15 安凯(广州)微电子技术有限公司 Method, device and terminal for controlling music play in TF card of blue-tooth loudspeaker box
CN107431851A (en) * 2015-04-06 2017-12-01 Lg 电子株式会社 Electronic equipment

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121226

Termination date: 20140509

C17 Cessation of patent right