CN101119399B - Blue tooth loudspeaker - Google Patents

Blue tooth loudspeaker Download PDF

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Publication number
CN101119399B
CN101119399B CN200610104004XA CN200610104004A CN101119399B CN 101119399 B CN101119399 B CN 101119399B CN 200610104004X A CN200610104004X A CN 200610104004XA CN 200610104004 A CN200610104004 A CN 200610104004A CN 101119399 B CN101119399 B CN 101119399B
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bluetooth
hands
loudspeaker
free
free chip
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CN200610104004XA
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Chinese (zh)
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CN101119399A (en
Inventor
秦春达
姜加伟
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Changzhou Wujin Wu Xin Asset Management Co., Ltd.
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XINKE ELECTRONIC CO Ltd
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Priority to CN200610104004XA priority Critical patent/CN101119399B/en
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Abstract

The present invention relates to a communication terminal device, in particular to a Bluetooth terminal device with handfree function, which aims to provide a bluetooth loudspeaker that not only allows handfree communication in match with a bluetooth mobile phone, but also allows internet communication in coordination with a computer. The bluetooth loudspeaker has buttons and circuit device; the circuit device has a speaker, a microphone, a bluetooth module unit, a bluetooth antenna, an audio frequency amplifying circuit and a power system. The circuit also has a handfree chipset; the handfree chipset and the bluetooth module are in a biadirectional electric connection with each other; the audio frequency amplifying circuit and the microphone are respectively electrically connected with the handfree chipset. The speaker is connected with the audio frequency amplifying circuit; the bluetooth antenna is connected with the bluetooth module; the power system is respectively electrically connected with the handfree chipset and the bluetooth module.

Description

Bluetooth loudspeaker
Technical field
The present invention relates to a kind of communication terminal equipment, concrete relating to possesses the Bluetooth terminal device of hand-free function.
Background technology
This short-distance wireless communication mode of Bluetooth technology brings great convenience for people's life, each communication manufacturer all exerts to develop corresponding Bluetooth terminal equipment and corollary apparatus thereof one after another, the popularization and application no more than bluetooth cellular phone and supporting bluetooth earphone that is widely known by the people most.It is light that bluetooth earphone uses, and is fit to the single use of cellphone subscriber, needs many people occasion earphone of conversing simultaneously just cannot use at some; In addition, because networking telephone rate are cheap, speech quality is reliable, and its user increases gradually, and same general caller uses earphone and the other side's conversation of band microphone, can't many people converse simultaneously.
Chinese patent literature CN1469683A discloses a kind of " handfree receiver unit that provides mobile phone and external hanging type bluetooth module to use simultaneously is provided ".Though this earphone device can successively carry out the hand-free conversation by mobile phone and blue-tooth mobile telephone when automobile-used, can not be applicable to the hand-free conversation of carrying out the networking telephone by computer.
Summary of the invention
The purpose of this invention is to provide a kind of and the supporting use of bluetooth cellular phone can hand-free call and can unite with computer again at different time and to use the Bluetooth loudspeaker that carries out Internet phone-calling.
The technical scheme that realizes the object of the invention is:
A kind of Bluetooth loudspeaker has button and circuit arrangement; Circuit arrangement has bluetooth module, Bluetooth antenna, audio amplifier circuit, loud speaker, microphone and power-supply system; Bluetooth antenna is connected with bluetooth module; Audio amplifier circuit is electrically connected with loud speaker; Its design feature is: circuit arrangement also has hands-free chip, USB interface and earphone interface; USB interface is electrically connected with hands-free chip, and the interface that is connected of the USB interface computer that is to use Shi Yuke to dial network telephone; Hands-free chip is electrically connected with bluetooth module is two-way; Microphone is electrically connected with hands-free chip, and hands-free chip is electrically connected with audio amplifier circuit by earphone interface; Power-supply system is electrically connected with hands-free chip and bluetooth module respectively.
Above-mentioned power-supply system comprises power supply management circuit, charge management circuit and the lithium battery of mutual electrical connection, and the power supply management circuit is electrically connected with hands-free chip and bluetooth module respectively.
The USB interface of foregoing circuit device is electrically connected with charge management circuit and power supply management circuit.
Above-mentioned panel button comprises power key, answers key, hangs up/pairing key and volume adjusting key; Power key and power supply management circuit are electrically connected, answer key, hang up/and pairing key is connected with bluetooth module respectively with the volume adjusting key.
The model of above-mentioned charge management circuit is BQ24103, and the model of power supply management circuit is PIC12F675, and the model of hands-free chip is FM1072LP, and the model of bluetooth module is BC417143B.
The good effect that the present invention has: the circuit arrangement of (1) Bluetooth loudspeaker of the present invention has hands-free chip, can be when using hands-freely receive calls or realize that many people converse simultaneously with bluetooth cellular phone pairing, and above-mentioned hands-free chip model is that FM1072LP has good echo inhibit feature, supports full duplex call preferably; (2) circuit arrangement of the present invention also has USB interface, can interconnect with computer to carry out Internet phone-calling, and its hand-free function can realize that many people converse simultaneously simultaneously.
Description of drawings
Fig. 1 is the circuit block diagram of Bluetooth loudspeaker of the present invention.
When Fig. 2 uses for the present invention and the pairing flow chart of supporting bluetooth cellular phone.
The flow chart that Fig. 3 is used for conversing for Bluetooth loudspeaker of the present invention.
Embodiment
See Fig. 1, Bluetooth loudspeaker of the present invention comprises casing, panel button 2 and circuit arrangement 3, the foregoing circuit device has bluetooth module 31, Bluetooth antenna 32, hands-free chip 33, audio amplifier circuit 34, USB interface 35, loud speaker 36, microphone 37 and power-supply system 5, and power-supply system 5 has charge management circuit 52, power supply management circuit 51 and lithium battery 53; Hands-free chip 31 and bluetooth module 33 two-way electrical connections, audio amplifier circuit 34 is connected with hands-free chip 33 respectively with microphone 37, and loud speaker 36 connects and is connected with audio amplifier circuit 34, and Bluetooth antenna 32 is connected with bluetooth module 31; The charge management circuit 52 of above-mentioned power-supply system 5, power supply management circuit 51 and lithium battery 53 interconnect successively, power supply management circuit 51 is connected with bluetooth module 31 with hands-free chip 33 respectively, the USB interface 35 of circuit arrangement 3 is connected with hands-free chip 33, charge management circuit 52 and power supply management circuit 51 respectively, between audio amplifier circuit 34 and hands-free chip 33, also be provided with earphone interface, no matter this Bluetooth loudspeaker is in and mobile phone pairing work state or networking telephone state, and the user can use earphone to converse as required; The model of above-mentioned charge management circuit 52 is BQ24103, and the model of power supply management circuit 51 is PIC12F675, and the model of hands-free chip 33 is FM1072LP, and the model of bluetooth module 31 is BC417143B.
Above-mentioned panel button 2 comprises power key 21, answers key 22, hangs up/pairing key 23 and volume adjusting key 24, the power supply management circuit 51 of power key 21 and power-supply system 5 is connected, answer key 22, hang up/pairing key 23 is connected with bluetooth module 31 respectively with volume adjusting key 24, the above-mentioned key 22 of answering also has different functions under different pressed state, such as the clawback function, volume adjusting key 24 minutes "+", "-" can regulate the volume height in communication process.Also be provided with bluetooth state indicator light, press key lamp and indicator of the power supply status on the casing of Bluetooth loudspeaker of the present invention, the bluetooth state indicator light is used to refer to the operating state of bluetooth module 31, such as being shown as Chang Liang with bluetooth cellular phone pairing process, and standby or conversation the time are the flicker of different frequency, and indicator of the power supply status is used for indicating what and charged state of electric weight.
This Bluetooth loudspeaker has two kinds of mode of operations, and one is and the conversation mode of operation of bluetooth cellular phone pairing, and two is to be connected by network with computer to carry out the BlueDrama pattern.With bluetooth cellular phone pairing work pattern under, the user can receive calls or carries out many people videoconference by hand-free function by Bluetooth loudspeaker of the present invention is hands-free.Above-mentioned Bluetooth antenna 32 be used for bluetooth cellular phone in bluetooth module receive mutually or send for information about, when the user uses this Bluetooth loudspeaker to receive calls, Bluetooth antenna 32 is used for receiving the incoming information that mobile phone sends and is transferred in the bluetooth module 31, bluetooth module 31 will send to hands-free chip 33 after will passing through the incoming information decoding of encoding, and calling voice information sends to audio amplifier circuit 34 and plays back in loud speaker 36 at last after hands-free chip 33 is through the D/A conversion; On the contrary, user's sound will be transported in the hands-free chip 33 by microphone 37, and the used hands-free chip 33 of the present invention is supported two microphone microphones, can more effective transmission user speech, hands-free chip 33 the is integrated echo number word signal processing circuit that disappears (DSP circuit) that embeds, can prevent effectively that the sound that transmits from returning into microphone 37 and conversation is caused echo interference from loud speaker 36, make this Bluetooth loudspeaker have good full-duplex preformance, conversion is admitted in the bluetooth module 31 voice messaging in the hands-free chip 33 through A/D, is sent on the bluetooth cellular phone by Bluetooth antenna 32 through coding then.
When this Bluetooth loudspeaker is used for being connected with computer when carrying out Internet phone-calling, only need to use the USB interface 35 of special-purpose USB wiring connection Bluetooth loudspeaker and the USB output interface of computer, then the mixer apparatus under " sound playing " on the computer and " recording " Default device and broadcast and the recording state all being set to " USB Audio Device " gets final product, the Bluetooth loudspeaker start detects the hands-free chip 33 of USB interface 35 connection back auto-initiations and is operated in the USB pattern, it is the Internet phone-calling pattern, certainly under this operating state, this Bluetooth loudspeaker can be used as the speaker operation of computer fully, just when operating computer dials network telephone, promptly realize hands-free Internet phone-calling, under above-mentioned Internet phone-calling operating state, the partner voice signal is delivered to audio amplifier circuit 34 at hands-free chip 33 through the D/A conversion and plays back from loud speaker 36; User's reply then by microphone 37 enter hands-free chip 33 through A/D conversion input computer again through Network Transmission to the other side, the echo function that disappears owing to DSP circuit in the hands-free chip 33 has guaranteed good full-duplex preformance in the Internet phone-calling process equally.
See Fig. 2, be the pairing flow chart of Bluetooth loudspeaker start use of the present invention with bluetooth cellular phone.This pairing process need bluetooth cellular phone one biconditional operation is realized, described flow chart is the routine processes process that occurs on this Bluetooth loudspeaker, step 201 is opened the Bluetooth loudspeaker power key, system's (Bluetooth loudspeaker) can judge at first whether USB interface 35 connects, if not then the hands-free chip 33 of initialization is operated in the bluetooth cellular phone call mode, step 202 system sends the pairing connection request, step 203 has judged whether connected mobile phone, if connected mobile phone is arranged then carry out step 212 and judge and the whether successful connection of this mobile phone, there is not connected mobile phone then to enter holding state (step 204), whether step 213 is then judged successful with being connected of mobile phone, successful then enter and bluetooth cellular phone connection status (step 213), there is not successful connection then to get back to step 204 (holding state); Above step is all finished automatically by the bluetooth module 31 of system, so that search whether there is the bluetooth cellular phone that has connected before the pairing again, step 205 judges whether panel button 2 has input operation, do not return holding state, there is the button input just to enter next step, if closing key (power key 21) input (step 206), then carry out power-off operation, if bluetooth module 31 receives pairing key 23 input operations (step 208), then bluetooth module is carried out matching operation, system enters pairing state (step 209), this moment bluetooth state indicator light Chang Liang, need to wait for the associative operation of the bluetooth cellular phone of pairing with it this moment, step 210 is judged the connection request that has or not bluetooth cellular phone to send, connect signal if there is bluetooth cellular phone to send out pairing, then enter step 212 and judge the whether success that is connected between mobile phone and the Bluetooth loudspeaker, if there is not the connection request signal of outside bluetooth cellular phone, then execution in step 211 judges whether the pairing state of Bluetooth loudspeaker is overtime, then do not get back to step 209 from newly entering the pairing state, overtime step 204 holding state that then returns.Because the pairing process relates to the associative operation of bluetooth cellular phone, so specifically the operating procedure of mobile phone is different, but connection procedure between the two is consistent, and above connection procedure makes sets up the transmission of wireless signals passage between the signal transmitting and receiving element of the bluetooth module 31 of Bluetooth loudspeaker and bluetooth cellular phone.
See Fig. 3, realize the flow chart of conversation for this Bluetooth loudspeaker.Step 301 system is in and bluetooth cellular phone pairing connection status, step 302 judges whether Outgoing Call or incoming call is arranged, judged whether button operation (step 303) simultaneously, if there is not also incoming call then return 301 not of the phone transferred in the step 302, the phone of dial-out is arranged or sends a telegram here then that bluetooth module 31 enters dialing or comes electricity condition mode of operation (step 304); There is not button operation then to return 301 in the step 303, there is button operation then to continue, if whether successfully redial key input (step 305) then further judges this key input (step 308), (described redial key is promptly answered key 22, the last phone of transfering to of the automatic clawback of system when the long period is pinned this and answers key 22), successful then enter dialing or come electricity condition mode of operation (step 304), unsuccessful then put back to button decision operation (step 303); If whether successfully step 303 button operation is phonetic dialing key (306) then judges this key input (step 309) equally, (described phonetic dialing key is all and answers key 22, this answers flicking key 22 systems and can carry out phonetic dialing, this function needs matching used bluetooth cellular phone to possess voice dial-up function), successful then enter dialing or come electricity condition mode of operation (step 304), unsuccessful then put back to case button operation judgement (step 303); Continue in step 304, whether bluetooth module 31 is further judged dialing or is sent a telegram here overtime in step 307, overtimely then return 301, then do not judged whether the button input in step 310, then not returning step 304 enters dialing or comes the electricity condition mode of operation, there is the button input then further to judge keystroke categories, step 311 is if the hang-up key input system is then returned step 301, step 312 then enters talking state (step 315) if answer key, and step 313 is if closing key (power key 21) is then carried out power-off operation (314).
This Bluetooth loudspeaker can be applied to automotive environment or multi-conference occasion, also can and carry out the bilateral network conversation as the loud speaker input audio signal of computer, equally can multi-conference.The USB interface 35 of this Bluetooth loudspeaker not only can be used for being connected with computer in addition, can also be used for charging to this Bluetooth loudspeaker as charging inlet.

Claims (5)

1. a Bluetooth loudspeaker has panel button (2), circuit arrangement (3); Circuit arrangement (3) has bluetooth module (31), Bluetooth antenna (32), audio amplifier circuit (34), loud speaker (36), microphone (37) and power-supply system (5); Bluetooth antenna (32) is connected with bluetooth module (31); Audio amplifier circuit (34) is electrically connected with loud speaker (36); It is characterized in that: circuit arrangement also has hands-free chip (33), USB interface (35) and earphone interface; USB interface (35) is electrically connected with hands-free chip (33), and the interface that is connected of USB interface (35) computer that is to use Shi Yuke to dial network telephone; Hands-free chip (33) and two-way electrical connection of bluetooth module (31); Microphone (37) is electrically connected with hands-free chip (33), and hands-free chip (33) is electrically connected with audio amplifier circuit (34) by earphone interface; Power-supply system (5) is electrically connected with hands-free chip (33) and bluetooth module (31) respectively;
Bluetooth loudspeaker is can be when using with bluetooth cellular phone pairing hands-free to receive calls or realizes that many people converse simultaneously; This Bluetooth loudspeaker can also interconnect with computer and carry out Internet phone-calling, and its hand-free function can realize that many people converse simultaneously simultaneously.
2. Bluetooth loudspeaker according to claim 1, it is characterized in that: above-mentioned power-supply system (5) comprises power supply management circuit (51), charge management circuit (52) and the lithium battery (53) of mutual electrical connection, and the power supply management circuit is electrically connected with hands-free chip (33) and bluetooth module (31) respectively.
3. Bluetooth loudspeaker according to claim 2 is characterized in that: the USB interface of circuit arrangement (3) is electrically connected with charge management circuit (52) and power supply management circuit (51).
4. Bluetooth loudspeaker according to claim 3 is characterized in that: above-mentioned panel button (2) comprises power key (21), answers key (22), hangs up/pairing key (23) and volume adjusting key (24); Power key (21) and power supply management circuit (51) are electrically connected, and answer key (22), hang up/pairing key (23) and be connected with bluetooth module (31) respectively with volume adjusting key (24).
5. Bluetooth loudspeaker according to claim 4, it is characterized in that: the model of above-mentioned charge management circuit (52) is BQ24103, the model of power supply management circuit (51) is PIC12F675, and the model of hands-free chip (33) is FM1072LP, and the model of bluetooth module (31) is BC417143B;
This Bluetooth loudspeaker has two kinds of mode of operations, and one is and the conversation mode of operation of bluetooth cellular phone pairing, and two is to be connected by network with computer to carry out the BlueDrama pattern;
With bluetooth cellular phone pairing work pattern under, the user can receive calls or carries out many people videoconference by hand-free function by Bluetooth loudspeaker of the present invention is hands-free; Above-mentioned Bluetooth antenna (32) be used for bluetooth cellular phone in bluetooth module receive mutually or send for information about, when the user uses this Bluetooth loudspeaker to receive calls, Bluetooth antenna (32) is used for receiving the incoming information that mobile phone sends and is transferred in the bluetooth module (31), bluetooth module (31) will send to hands-free chip (33) after will passing through the incoming information decoding of encoding, and calling voice information sends to audio amplifier circuit (34) and plays back in loud speaker (36) at last after hands-free chip (33) is through the D/A conversion; On the contrary, user's sound will be transported in the hands-free chip (33) by microphone (37), and the used hands-free chip of the present invention (33) is supported two microphone microphones, can more effective transmission user speech, the echo number word signal processing circuit that disappears that hands-free chip (33) is integrated embeds, can prevent effectively that the sound that transmits from returning into microphone (37) and conversation is caused echo interference from loud speaker (36), make this Bluetooth loudspeaker have good full-duplex preformance, conversion is admitted in the bluetooth module (31) voice messaging in the hands-free chip (33) through A/D, is sent on the bluetooth cellular phone by Bluetooth antenna (32) through coding then;
When this Bluetooth loudspeaker is used for being connected with computer when carrying out Internet phone-calling, only need to use the USB interface (35) of special-purpose USB wiring connection Bluetooth loudspeaker and the USB output interface of computer, then the mixer apparatus under " sound playing " on the computer and " recording " Default device and broadcast and the recording state all being set to " USB Audio Device " gets final product, the Bluetooth loudspeaker start detects USB interface (35) the connection back hands-free chip of auto-initiation (33) and is operated in the USB pattern, it is the Internet phone-calling pattern, certainly under this operating state, this Bluetooth loudspeaker can be used as the speaker operation of computer fully, just when operating computer dials network telephone, promptly realize hands-free Internet phone-calling, under above-mentioned Internet phone-calling operating state, the partner voice signal is delivered to audio amplifier circuit (34) at hands-free chip (33) through the D/A conversion and plays back from loud speaker (36); User's reply then by microphone (37) enter hands-free chip (33) through A/D conversion input computer again through Network Transmission to the other side, same because the echo function that disappears of the middle DSP circuit of hands-free chip (33) has guaranteed good full-duplex preformance in the Internet phone-calling process.
CN200610104004XA 2006-07-31 2006-07-31 Blue tooth loudspeaker Active CN101119399B (en)

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Application Number Priority Date Filing Date Title
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CN200610104004XA CN101119399B (en) 2006-07-31 2006-07-31 Blue tooth loudspeaker

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CN101119399B true CN101119399B (en) 2010-11-17

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2967042A1 (en) * 2009-02-10 2010-09-02 4361423 Canada Inc. Apparatus and method for commercial transactions using a communication device
CN102789178B (en) * 2012-08-17 2015-07-29 歌尔声学股份有限公司 Electronic product and the method realizing electronic product automatic switching of automatic switching
WO2014061486A1 (en) * 2012-10-16 2014-04-24 ソニー株式会社 Information processing device, information processing method, and program
CN103411778A (en) * 2013-07-15 2013-11-27 深圳市元征科技股份有限公司 Car diagnostic equipment with Bluetooth sound amplifying function and car diagnostic method
CN104752915A (en) * 2015-04-08 2015-07-01 艾地生 Multifunctional Bluetooth music power socket
CN109644216A (en) 2016-08-18 2019-04-16 华为技术有限公司 A kind of method and terminal of Bluetooth communication

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EE01 Entry into force of recordation of patent licensing contract

Assignee: Jiangsu Shinco Digital Technology Co., Ltd.

Assignor: Xinke Electronic Co., Ltd.

Contract record no.: 2011320000381

Denomination of invention: Blue tooth loudspeaker

Granted publication date: 20101117

License type: Exclusive License

Open date: 20080206

Record date: 20110324

ASS Succession or assignment of patent right

Owner name: CHANGZHOU WUJIN WUXIN ASSETS MANAGEMENT CO., LTD.

Free format text: FORMER OWNER: XINKE ELECTRONIC CO., LTD.

Effective date: 20120716

TR01 Transfer of patent right

Effective date of registration: 20120716

Address after: 213159 Hutang, Jiangsu, Wujin District, the town of Yan Zheng Road, No. 28, No.

Patentee after: Changzhou Wujin Wu Xin Asset Management Co., Ltd.

Address before: 213104 Luoyang Town, Wujin District, Jiangsu, Changzhou

Patentee before: Xinke Electronic Co., Ltd.

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 213104 CHANGZHOU, JIANGSU PROVINCE TO: 213159 CHANGZHOU, JIANGSU PROVINCE