CN101119399B - Blue tooth loudspeaker - Google Patents

Blue tooth loudspeaker Download PDF

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Publication number
CN101119399B
CN101119399B CN 200610104004 CN200610104004A CN101119399B CN 101119399 B CN101119399 B CN 101119399B CN 200610104004 CN200610104004 CN 200610104004 CN 200610104004 A CN200610104004 A CN 200610104004A CN 101119399 B CN101119399 B CN 101119399B
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bluetooth
hands
speaker
free
circuit
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CN 200610104004
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Chinese (zh)
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CN101119399A (en )
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姜加伟
秦春达
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新科电子集团有限公司
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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

蓝牙喇叭 Bluetooth Speaker

技术领域 FIELD

[0001] 本发明涉及一种通讯终端设备,具体的是涉及具备免提功能的蓝牙终端装置。 [0001] The present invention relates to a communication terminal apparatus, particularly relates to a Bluetooth terminal apparatus includes a hands-free function. 背景技术 Background technique

[0002] 蓝牙技术这种短距离无线通讯方式为人们的生活带来了极大的便利,各通讯厂商都纷纷花大力气研制相应的蓝牙终端设备及其配套装置,最广为人知的莫过于蓝牙手机和配套的蓝牙耳机的普及应用。 [0002] This Bluetooth short-range wireless communication to people's lives has brought great convenience, each communications manufacturers have to make great efforts to develop the appropriate Bluetooth terminal equipment and supporting equipment, the most widely known than Bluetooth phones and supporting the wider application of Bluetooth headset. 蓝牙耳机使用轻便,适合手机用户单人使用,在有些需要多人同时通话场合耳机便没法使用了;另外,由于网络电话资费便宜,通话质量可靠,其使用者逐渐增多,同样一般的通话者都用带麦克风的耳机和对方通话,无法多人同时通话。 Lightweight Bluetooth headset for mobile phone users to use single, double talk where they can not use the headset needs in some people; In addition, because Internet telephony cheaper rates, reliable call quality, its users gradually increased, the same general talker They are used with a microphone headset and talk to each other, not many simultaneous calls.

[0003] 中国专利文献CN1469683A公开了一种“具有同时提供移动电话与外挂式蓝牙模组使用的免持听筒装置”。 [0003] Chinese patent CN1469683A discloses a "device having a mobile phone while providing a plug-in module using the Bluetooth hands-free." 该听筒装置虽然能够在车用时,先后通过移动电话和蓝牙移动电话进行免持通话,但是不能适用于通过电脑进行网络电话的免持通话。 The handset device even though it can in the car, has conducted hands-free calls via mobile phone and Bluetooth mobile phone, but can not be applied to the hands-free phone calls through the computer network.

发明内容 SUMMARY

[0004] 本发明的目的是提供一种与蓝牙手机配套使用能够免提通话、以及在不同时间又可以和电脑联合使用进行网络通话的蓝牙喇叭。 [0004] The object of the present invention is to provide a Bluetooth handsfree phone capable of supporting the call, and they can be used in combination Bluetooth Speaker computer network call at different times.

[0005] 实现本发明目的的技术方案是: [0005] The purpose of the present invention of are:

[0006] 一种蓝牙喇叭,具有按键和电路装置;电路装置具有蓝牙模块、蓝牙天线、音频放大电路、扬声器、麦克风和电源系统;蓝牙天线与蓝牙模块连接;音频放大电路与扬声器电连接;其结构特点是:电路装置还具有免提芯片、USB接口和耳机接口;USB接口与免提芯片电连接,且USB接口是使用时与可拨打网络电话的电脑相连接的接口;免提芯片与蓝牙模块双向电连接;麦克风与免提芯片电连接,免提芯片通过耳机接口与音频放大电路电连接; 电源系统分别与免提芯片和蓝牙模块电连接。 [0006] A Bluetooth speaker, buttons and having circuit means; circuit means having a Bluetooth module, a Bluetooth antenna, an audio amplifier, a speaker, a microphone and a power supply system; Bluetooth module and the Bluetooth antenna is connected; an audio amplifier and a speaker electrically connected; it structure is characterized by: circuit means further includes a hands-free chip, headphone jack, and a USB interface; USB interface chip is electrically connected with the hands-free, and the USB interface is an interface used when calls over the Internet may be connected to a computer; hands-free and Bluetooth chip bidirectional module electrically connected; handsfree microphone chip is electrically connected, a handsfree amplifier circuit chip electrically connected via an audio headphone jack; the power supply system are connected to the hands-free and Bluetooth chip module electrically.

[0007] 上述电源系统包括互相电连接的供电管理电路、充电管理电路和锂电池,供电管理电路分别与免提芯片和蓝牙模块电连接。 [0007] The power supply system includes a power supply management circuit electrically connected to each other, and a lithium battery charge management circuit, the power supply management circuit chips are connected to the hands-free and Bluetooth module electrically.

[0008] 上述电路装置的USB接口与充电管理电路和供电管理电路电连接。 [0008] USB interface charge management circuit and power supply management circuit is electrically connected to said circuit means.

[0009] 上述面板按键包括电源键、接听键、挂断/配对键和音量调节键;电源键和供电管理电路电连接,接听键、挂断/配对键和音量调节键分别与蓝牙模块连接。 [0009] The panel keys include a power key, answer key, end / pairing key and volume control keys; the power button and the power supply management circuit is electrically connected, answer key, end / pairing key and volume control keys are connected to the Bluetooth module.

[0010] 上述充电管理电路的型号为BQ24103,供电管理电路的型号为PIC12F675,免提芯片的型号为FM1072LP,蓝牙模块的型号为BC417143B。 [0010] The charge management circuit model for BQ24103, type power supply management circuit is PIC12F675, hands-free chip model FM1072LP, Bluetooth module model BC417143B.

[0011] 本发明具有的积极效果:(1)本发明蓝牙喇叭的电路装置具有免提芯片,能够在与蓝牙手机配对使用时免提接听电话或者实现多人同时通话,而且上述免提芯片型号为FM1072LP具有良好的回声抑制功能,较好的支撑全双工通话;(2)本发明电路装置还具有USB接口,能够和电脑互连进行网络通话,同时其免提功能可以实现多人同时通话。 [0011] The present invention has positive effects: (1) a Bluetooth speaker device of the present invention having a hands-free circuit chip that can receive calls in a hands-free Bluetooth pairing with Mobile or implement many simultaneous calls, and hands-free chip type FM1072LP is a good echo suppression function better support full duplex call; (2) the circuit arrangement according to the present invention further includes a USB interface that can interconnect computers and network call, hands-free function may be implemented while many simultaneous calls . 附图说明 BRIEF DESCRIPTION

[0012] 图1为本发明蓝牙喇叭的电路框图。 [0012] Fig 1 a block circuit diagram of a Bluetooth speaker of the present invention.

[0013] 图2为本发明使用时与配套蓝牙手机的配对流程图。 [0013] The flowchart of FIG. 2 are a pair and supporting Bluetooth phone when the present invention.

[0014] 图3为本发明蓝牙喇叭用来进行通话的流程图。 Bluetooth speaker is used for the call is a flowchart [0014] FIG. 3 of the present invention.

具体实施方式 detailed description

[0015] 见图1,本发明蓝牙喇叭包括机壳、面板按键2和电路装置3,上述电路装置具有蓝牙模块31、蓝牙天线32、免提芯片33、音频放大电路34、USB接口35、扬声器36、麦克风37 和电源系统5,电源系统5具有充电管理电路52、供电管理电路51和锂电池53 ;免提芯片31和蓝牙模块33双向电连接,音频放大电路34和麦克风37分别与免提芯片33连接,扬声器36连接和音频放大电路34连接,蓝牙天线32和蓝牙模块31连接;上述电源系统5的充电管理电路52、供电管理电路51和锂电池53依次互连,供电管理电路51分别和免提芯片33与蓝牙模块31连接,电路装置3的USB接口35分别与免提芯片33、充电管理电路52 和供电管理电路51连接,在音频放大电路34和免提芯片33之间还设有耳机接口,无论本蓝牙喇叭处于与手机配对工作状态或网络电话状态,用户都可以根据需要使用耳机进行通话;上 [0015] Figure 1, the present invention includes a Bluetooth speaker cabinet, panel keys 2 and 3 circuit means, said circuit means having a Bluetooth module 31, a Bluetooth antenna 32, a hands-free chip 33, the audio amplifier circuit 34, USB interface 35, a speaker 36, a microphone 37, and a power supply system 5, the power management system 5 has a charging circuit 52, power management circuit 51 and the lithium battery 53; hands-free Bluetooth module 33 and the chip 31 is electrically connected to a two-way, audio amplification circuit 34 and the microphone 37 are used with a handsfree chip 33 is connected, and a speaker 36 connected to the audio amplification circuit 34 is connected, the Bluetooth antenna 32 and the Bluetooth module 31 is connected; said power supply system 5 of the charge management circuit 52, power management circuit 51 and the lithium battery 53 are sequentially interconnected, power management circuit 51 are and a hands-free Bluetooth module 31 and the chip 33 is connected to the circuit means 3, the USB interface 35, respectively 33, the charge management circuit 52, and power management circuitry 51 is connected to the hands-free chip, between the circuit chip 34 and speaker 33 provided in the audio amplifier further there headphone jack, regardless of this Bluetooth speaker paired with the phone is in working condition or state of VoIP, users can make calls using a headset as needed; on 述充电管理电路52的型号为BQ24103,供电管理电路51的型号为PIC12F675,免提芯片33的型号为FM1072LP,蓝牙模块31的型号为BC417143B。 Model charge management circuit 52 described later is BQ24103, Model Power management circuit 51 is a PIC12F675, hands-free model chip 33 FM1072LP, the Bluetooth module 31, Model BC417143B.

[0016] 上述面板按键2包括电源键21、接听键22、挂断/配对键23和音量调节键24,电源键21和电源系统5的供电管理电路51连接,接听键22、挂断/配对键23和音量调节键24分别与蓝牙模块31连接,上述接听键22在不同按压状态下还具有不同的功能,比如回拨功能,音量调节键24分“ + ”、“_”可以在通话过程中调节音量高低。 [0016] The key panel 21 includes a power key 2, key 22 answer, hang up / pairing key 23 and the volume adjustment key 24, a power supply key 21 and the power management circuitry 515 is connected, the answer key 22, a disconnect / pair key 23 and the volume adjustment key 24 are connected to the Bluetooth module 31 the answer key 22 also has different functions in different pressed states, such as callback functions, volume control keys 24 points "+", "_" may during a call adjust the volume level. 本发明蓝牙喇叭的机壳上还设有蓝牙状态指示灯、按键灯和电源状态指示灯,蓝牙状态指示灯用来指示蓝牙模块31的工作状态,比如在和蓝牙手机配对过程显示为常亮,而待机或通话时为不同频率的闪烁,电源状态指示灯用来标示电量的多少以及充电状态。 There is also a Bluetooth status indicator, power indicator lights and buttons on the housing of the present invention, Bluetooth speaker, Bluetooth status indicator to indicate the working status of the Bluetooth module 31, such as in a mobile phone and a Bluetooth pairing process is lit display, and the flicker of a different frequency or standby call, and how much power indicator for the state of charge of the battery indicated.

[0017] 本蓝牙喇叭具有两种工作模式,一为与蓝牙手机配对的通话工作模式,二为与电脑连接通过网络进行网络会话模式。 [0017] The present Bluetooth speaker has two operating modes, a paired with the Bluetooth phone call mode of operation, two computers connected to the network through the network session mode. 在与蓝牙手机配对工作模式下,用户可以通过本发明蓝牙喇叭免提接听电话或者借助免提功能进行多人电话会议。 In the mode of operation paired with a Bluetooth phone, the user can receive calls using a Bluetooth hands-free speaker or with the aid of the invention multiplayer hands-free conference calls. 上述蓝牙天线32用来与蓝牙手机中的蓝牙模块互相接收或者发送有关信息,当用户使用本蓝牙喇叭接听电话时,蓝牙天线32用来接收手机发出的来电信息并传输到蓝牙模块31中,蓝牙模块31将该经过编码的来电信息解码后发送到免提芯片33,来电语音信息在免提芯片33经过D/A转换后发送到音频放大电路34最后在扬声器36中播放出来;相反,用户的声音将通过麦克风37输送到免提芯片33中,并且本发明所用免提芯片33支持两个麦克风话筒,可以更有效的传递用户语音,免提芯片33集成了嵌入的消回声数字信号处理电路(DSP电路),能够有效的防止从扬声器36中传来的声音回传入麦克风37而对通话造成回声干扰,使本蓝牙喇叭具有良好的全双工性能,免提芯片33中的语音信息经过A/D转换被送入蓝牙模块31中,然后经过编码由蓝牙天线32发送到蓝牙手机上。 The above-described Bluetooth antenna 32 to receive or transmit information to each other Bluetooth Bluetooth phone module, when the user answer the phone using Bluetooth speaker, Bluetooth antenna 32 for receiving incoming information sent by the phone and transmitted to the Bluetooth module 31, a Bluetooth after the module 31 transmits the encoded information decoding incoming chip 33 to the hands-free, voice information is sent in a handsfree call chip 33 after D / a conversion to the audio amplifier circuit 34 in the last played out the speaker 36; instead, the user delivering sound through a microphone 37 to the hands-free chip 33, and the present invention is used in a hands-free microphone chip 33 supports two microphones can be more effectively transfer the user's voice, a hands free integrated chip 33 embedded echo cancellation digital signal processing circuit ( DSP circuit) can be effectively prevented from coming back to the sound speaker 36 microphone input 37 causing echo interference call, so that the horn has good Bluetooth full-duplex capability, speech information in a hands-free chip 33 through a a / D converter is sent to the Bluetooth module 31, and then encoded by the Bluetooth transmission antenna 32 to the Bluetooth phone.

[0018] 当本蓝牙喇叭用来和电脑连接进行网络通话时,只需使用专用的USB接线连接蓝牙喇叭的USB接口35和电脑的USB输出接口,然后将电脑上“声音播放”和“录音”默认设备和播放和录音状态下的混音器设备都设置为“USB Audio Device”即可,蓝牙喇叭开机检 [0018] When the present Bluetooth speaker connected to the computer network for a call, simply use the computer's USB interface 35 and USB output connector dedicated USB cable Bluetooth speaker, and then the computer "Sound playback" and "record" the default mixer device and equipment status under the playback and recording are set to "USB Audio device" can, seized power on Bluetooth speaker

5测到USB接口35连接后自动初始化免提芯片33工作在USB模式,即网络通话模式,当然在这种工作状态下,本蓝牙喇叭完全可以作为电脑的扬声器工作,只是当操作电脑拨打网络电话时,即实现免提网络通话,在上述网络通话工作状态下,通话对方语音信号在免提芯片33经D/A转换传递到音频放大电路34再从扬声器36中播放出来;而用户的回话则由麦克风37进入免提芯片33经A/D转换输入电脑再经网络传输到对方,同样由于免提芯片33中DSP电路的消回声功能保证了网络通话过程中良好的全双工性能。 5 automatically initializes the measured handsfree chip 33 post-USB interface 35 is connected to the USB mode, i.e., the network call mode, of course, in this operating state, the Bluetooth can be used as a horn speaker computer work only when the operation of the computer network telephone call when, i.e. a network hands-free call, the call in the operating state of said network, a voice caller in a hands-free transmission signal chip 33 via the D / a converter to an audio amplifier circuit 34 and then played back from the speaker 36; and the user's answer is 37 enters handsfree microphone chip 33 by the a / D-conversion and then transmitted to the other party entered into the computer via the network, since the same echo cancellation speakerphone functionality in the DSP circuit chip 33 to ensure a good full-duplex network performance during a call.

[0019] 见图2,为本发明蓝牙喇叭开机使用与蓝牙手机的配对流程图。 [0019] Figure 2, a flowchart of the Bluetooth pairing start to use Bluetooth speaker phone of the present invention. 该配对过程需要蓝牙手机一同操作实现,所述流程图为发生在本蓝牙喇叭上的程序处理过程,步骤201打开蓝牙喇叭电源键,系统(蓝牙喇叭)首先会判断USB接口35有没有连接,如果没有则初始化免提芯片33工作在蓝牙手机通话模式,步骤202系统发送配对连接请求,步骤203判断是否有被连接的手机,如果有被连接的手机则进行步骤212判断与该手机是否连接成功, 没有被连接的手机则进入待机状态(步骤204),步骤213接着判断与手机的连接是否成功,成功则进入已和蓝牙手机连接状态(步骤213),没有连接成功则回到步骤204(待机状态);以上步骤都由系统的蓝牙模块31自动完成,以便再配对之前查找是否存在已经连接的蓝牙手机,步骤205判断面板按键2是否有输入操作,没有返回待机状态,有按键输入就进入下一步骤,如果是关机键(电源键21)输入(步骤20 The Bluetooth pairing process needed to achieve operation with a mobile phone, a flow chart as occurring in the present processing procedure Bluetooth speaker, step 201 opens the power key speaker Bluetooth system (Bluetooth Speaker) USB interface 35 first determines there is no connection, if Hands-free chip 33 without initializing the connection request transmits the pairing work in the Bluetooth phone call mode, the system in step 202, step 203 determines whether the phone is connected, if the phone is connected then step 212 determines whether a successful connection to the phone, phone is not connected into a standby state (step 204), then step 213 determines whether a successful connection with your phone, then enter the successful 204 (standby status and Bluetooth phone connection status (step 213), then the connection is not successful step back ); the above steps Bluetooth module 31 by the system automatically, so look for the existence prior to adding phone has a Bluetooth connection, step 205 determines whether there is an input panel button operation 2, there is no return to the standby state, there is a key input proceeds to the next step, if the key is off (the power key 21) input (step 20 6),则执行关机操作,如果蓝牙模块31接收到配对键23输入操作(步骤208),则蓝牙模块执行配对操作,系统进入配对状态(步骤209),此时蓝牙状态指示灯常亮,此时需要等待与之配对的蓝牙手机的相关操作,步骤210判断有无蓝牙手机发送的连接请求,如果有蓝牙手机发送出配对连接信号,则进入步骤212判断手机与蓝牙喇叭之间的连接是否成功,如果没有外部蓝牙手机的连接请求信号,则执行步骤211判断蓝牙喇叭的配对状态是否超时了,没有则回到步骤209从新进入配对状态,超时则返回步骤204待机状态。 6), the shutdown operation is performed if the Bluetooth module 31 receives the input operation of the pairing key 23 (step 208), the Bluetooth module performs the pairing operation, the system enters the pair state (step 209), then the Bluetooth status indicator is on, this wait paired Bluetooth phone when the related operation, step 210 determines whether or Bluetooth phone connection request is sent, if the mobile phone has a Bluetooth connection signal sent out pairing, step 212 determines whether the connection between the phone with a Bluetooth speaker success If no external Bluetooth phone connection request signal, step 211 determines whether the pair status of the Bluetooth speaker timeout, and returns to step 209 without re-pairing, the timeout step 204 returns to the standby state. 由于配对过程涉及蓝牙手机的相关操作,所以可能具体手机的操作步骤有所不同,但是两者之间的连接过程是一致的,以上连接过程使得蓝牙喇叭的蓝牙模块31与蓝牙手机的信号收发元件之间建立无线信号传输通道。 Since the process involves pairing a Bluetooth mobile phone-related operations, it may be specific phone operating steps differ, but the connection between the two processes is the same, so that the above connection procedure of Bluetooth speaker Bluetooth module 31 and the Bluetooth phone signal transceiving elements establishing a wireless signal transmission path between.

[0020] 见图3,为本蓝牙喇叭实现通话的流程图。 [0020] Figure 3, a flowchart of a call-based Bluetooth Speaker achieved. 步骤301系统处于已经和蓝牙手机配对连接状态,步骤302判断是否拨出电话或者有来电,同时判断是否有按键操作(步骤303), 步骤302中如果没有拨出的电话也没有来电则返回301,有拨出的电话或者来电则蓝牙模块31进入拨号或来电状态工作模式(步骤304);步骤303中没有按键操作则返回301,有按键操作则继续,如果是重拨键输入(步骤305)则进一步判断该键输入是否成功(步骤308),(所述重拨键即接听键22,当较长时间按住该接听键22时系统自动回拨最后一次拨出的电话),成功则进入拨号或来电状态工作模式(步骤304),不成功则放回按键判断操作(步骤303);如果步骤303按键操作是语音拨号键(306)则同样判断该键输入是否成功(步骤309),(所述语音拨号键同为接听键22,轻按该接听键22系统可以进行语音拨号,该功能需要配套使用的蓝牙手机具备语音拨号 Step 301 and the system is already paired Bluetooth phone connection state, step 302 determines whether an incoming call or outgoing calls, and determines whether a key operation (step 303), in step 302 if there is no outgoing telephone call does not return 301, there outgoing telephone call or the Bluetooth module 31, or the dialing call state mode of operation (step 304); there is no key operation in step 303 is returned 301, the operation continues with keys, a redial if the key input (step 305) the the key input is further determined whether or not successful (step 308), (i.e., the answer key to the redial key 22, when the longer hold the answer key 22 is automatically call back the last outgoing call), the process proceeds successfully dialing call state or operation mode (step 304), the back key judgment operation is unsuccessful (step 303); if the key operation in step 303 is a voice dialing key (306) is similarly judged whether or not the key input is successful (step 309), (the said the voice dial button 22 with answer key, tap the answer key 22 systems for voice dialing, this feature requires supporting the use of a Bluetooth phone has voice dialing 功能),成功则进入拨号或者来电状态工作模式(步骤304),不成功则放回案按键操作判断(步骤303);在步骤304继续,蓝牙模块31 在步骤307进一步判断拨号或来电是否超时,超时则返回301,没有则在步骤310判断是否有按键输入,没有则返回步骤304进入拨号或来电状态工作模式,有按键输入则进一步判断按键类别,步骤311如果是挂断键输入系统则返回步骤301,步骤312如果是接听键则进入通话状态(步骤315),步骤313如果是关机键(电源键21)则执行关机操作(314)。 Function), the process proceeds successfully dialing or call state mode of operation (step 304), a key operation is unsuccessful the case back is determined (step 303); continues at step 304, a Bluetooth module 31 at step 307 determines whether or not further calls or dialing time-out, timeout returns 301, if there is no key input is determined at step 310, returns to step 304 without entering or dialing a call state mode of operation, there is a key input further determines the key type, in step 311 if the end key is entered into the system returns to step 301, if the answer key step 312 proceeds to call status (step 315), step 313 if the key is off (the power key 21) off operation is performed (314). [0021] 本蓝牙喇叭能够应用于汽车环境或者多人会话场合,也能够作为电脑的扬声器输入音频信号并进行双向网络通话,同样可以多人会话。 [0021] This Bluetooth speaker can be applied to the automotive environment or multiplayer session settings, they can be used as a computer speaker input audio signal and two-way Internet phone, it can also be multiplayer session. 另外本蓝牙喇叭的USB接口35不仅可以用来与电脑连接,还可以作为充电接口用来给本蓝牙喇叭充电。 In addition the speaker Bluetooth USB interface 35 connected with the computer not only can be used, as can also be used to present charging interface Bluetooth Speaker charged.

Claims (5)

  1. 一种蓝牙喇叭,具有面板按键(2)、电路装置(3);电路装置(3)具有蓝牙模块(31)、蓝牙天线(32)、音频放大电路(34)、扬声器(36)、麦克风(37)和电源系统(5);蓝牙天线(32)与蓝牙模块(31)连接;音频放大电路(34)与扬声器(36)电连接;其特征在于:电路装置还具有免提芯片(33)、USB接口(35)和耳机接口;USB接口(35)与免提芯片(33)电连接,且USB接口(35)是使用时与可拨打网络电话的电脑相连接的接口;免提芯片(33)与蓝牙模块(31)双向电连接;麦克风(37)与免提芯片(33)电连接,免提芯片(33)通过耳机接口与音频放大电路(34)电连接;电源系统(5)分别与免提芯片(33)和蓝牙模块(31)电连接;蓝牙喇叭能够在与蓝牙手机配对使用时免提接听电话或者实现多人同时通话;本蓝牙喇叭还能够和电脑互连进行网络通话,同时其免提功能可以实现多人同时通话。 One kind of a Bluetooth speaker, having a key panel (2), circuit means (3); a circuit means (3) having a Bluetooth module (31), Bluetooth antenna (32), an audio amplifier circuit (34), a speaker (36), a microphone ( 37), and a power supply system (5); Bluetooth antenna (32) and a Bluetooth module (31) is connected; an audio amplifier circuit (34) with the speaker (36) electrically connected; characterized in that: the circuit further includes a hands-free device chip (33) , a USB interface (35) and a headphone jack; USB connector (35) and the hands-free chips (33) are electrically connected, and a USB interface (35) is an interface used when calls over the Internet may be connected to a computer; hands-free chips ( 33) and a Bluetooth module (31) is electrically connected to a bidirectional; microphone (37) hands-free chips (33) is electrically connected to the hands-free chips (33) is electrically connected through the headphone jack and the audio amplification circuit (34); a power supply system (5) are electrically connected to the hands-free chips (33) and a Bluetooth module (31); Bluetooth handsfree speaker able to answer the call when paired with Bluetooth phone use or to achieve many simultaneous calls; Bluetooth speaker can also be present calls and computer network interconnecting , while its hands-free feature allows many simultaneous calls.
  2. 2.根据权利要求1所述的蓝牙喇叭,其特征在于:上述电源系统(5)包括互相电连接的供电管理电路(51)、充电管理电路(52)和锂电池(53),供电管理电路分别与免提芯片(33)和蓝牙模块(31)电连接。 Bluetooth speaker according to claim 1, wherein: said power supply system (5) comprises a power management circuit (51) electrically connected to each other, the charge management circuit (52) and a lithium battery (53), the power supply management circuit are electrically connected to the hands-free chips (33) and a Bluetooth module (31).
  3. 3.根据权利要求2所述的蓝牙喇叭,其特征在于:电路装置(3)的USB接口与充电管理电路(52)和供电管理电路(51)电连接。 Bluetooth loudspeaker according to claim 2, characterized by: circuit means (3) with the USB interface charge management circuit (52) and a power supply management circuit (51) is electrically connected.
  4. 4.根据权利要求3所述的蓝牙喇叭,其特征在于:上述面板按键(2)包括电源键(21)、 接听键(22)、挂断/配对键(23)和音量调节键(24);电源键(21)和供电管理电路(51)电连接,接听键(22)、挂断/配对键(23)和音量调节键(24)分别与蓝牙模块(31)连接。 Bluetooth speaker according to claim 3, wherein: the panel keys (2) includes a power key (21), the answer key (22), a disconnect / key pair (23) and volume adjustment keys (24) ; power key (21) and a power supply management circuit (51) is electrically connected to the answer key (22), a disconnect / key pair (23) and volume adjustment keys (24) are connected to the Bluetooth module (31).
  5. 5.根据权利要求4所述的蓝牙喇叭,其特征在于:上述充电管理电路(52)的型号为BQ24103,供电管理电路(51)的型号为PIC12F675,免提芯片(33)的型号为FM1072LP,蓝牙模块(31)的型号为BC417143B ;本蓝牙喇叭具有两种工作模式,一为与蓝牙手机配对的通话工作模式,二为与电脑连接通过网络进行网络会话模式;在与蓝牙手机配对工作模式下,用户可以通过本发明蓝牙喇叭免提接听电话或者借助免提功能进行多人电话会议;上述蓝牙天线(32)用来与蓝牙手机中的蓝牙模块互相接收或者发送有关信息,当用户使用本蓝牙喇叭接听电话时,蓝牙天线(32)用来接收手机发出的来电信息并传输到蓝牙模块(31)中,蓝牙模块(31)将该经过编码的来电信息解码后发送到免提芯片(33),来电语音信息在免提芯片(33)经过D/A转换后发送到音频放大电路(34)最后在扬声器(36)中播 Bluetooth speaker according to claim 4, wherein: the charging model management circuit (52) is BQ24103, Model Power management circuit (51) as the PIC12F675, hands-free chips (33) FM1072LP model, Bluetooth module (31), model BC417143B; Bluetooth present horn has two operating modes, a paired with the Bluetooth phone call mode, two for connection to a computer network via a network session mode; operating mode in a mobile phone with a Bluetooth pairing , the user can receive via Bluetooth hands-free speaker phone of the present invention or by means of a telephone conference speakerphone multiplayer; and the Bluetooth antenna (32) to receive or send information to each other Bluetooth phone Bluetooth module, when a user using the Bluetooth when the horn answer the phone, Bluetooth antenna (32) for receiving caller information transmitted to the phone and sent the bluetooth module (31), a Bluetooth module (31) transmits the encoded chip handsfree call decode the information (33) , voice call information (33) transmitted through the handsfree chip D / A conversion to the audio amplification circuit (34) in the last broadcast speaker (36) 出来;相反,用户的声音将通过麦克风(37)输送到免提芯片(33)中,并且本发明所用免提芯片(33)支持两个麦克风话筒,可以更有效的传递用户语音,免提芯片(33)集成了嵌入的消回声数字信号处理电路,能够有效的防止从扬声器(36) 中传来的声音回传入麦克风(37)而对通话造成回声干扰,使本蓝牙喇叭具有良好的全双工性能,免提芯片(33)中的语音信息经过A/D转换被送入蓝牙模块(31)中,然后经过编码由蓝牙天线(32)发送到蓝牙手机上;当本蓝牙喇叭用来和电脑连接进行网络通话时,只需使用专用的USB接线连接蓝牙喇叭的USB接口(35)和电脑的USB输出接口,然后将电脑上“声音播放”和“录音”默认设备和播放和录音状态下的混音器设备都设置为“USB Audio Device”即可,蓝牙喇叭开机检测到USB接口(35)连接后自动初始化免提芯片(33)工作在USB模式 Out; Instead, the user's voice will be conveyed through the microphone (37) hands-free chips (33), and the present invention is a hands-free microphone chip is used to support two microphones (33), can be more effectively transfer the user's voice, a hands free chip (33) incorporates embedded echo cancellation digital signal processing circuit, the speaker can effectively be prevented from coming in (36) the sound back to the microphone input (37) and for causing the call echo interference, so that the horn has good full Bluetooth performance duplex, hands-free voice information chip (33) via the a / D conversion is sent to the Bluetooth module (31), and then encoded by the Bluetooth transmission antenna (32) to the Bluetooth mobile phone; Bluetooth when the speaker is used for the present when calls and computer network connections, only use the dedicated USB cable connected to the USB interface Bluetooth speaker (35) and the USB output of the computer, and the computer "play sound" and "recording" default device and playback and recording status the mixer devices are set to "USB Audio device" to Bluetooth handsfree speaker switched automatically initialized to the USB interface chip detector (35) connected to rear (33) operates in USB mode ,即网络通话模式,当然在这种工作状态下,本蓝牙喇叭完全可以作为电脑的扬声器工作,只是当操作电脑拨打网络电话时,即实现免提网络通话,在上述网络通话工作状态下,通话对方语音信号在免提芯片(33)经D/A转换传递到音频放大电路(34)再从扬声器(36)中播放出来;而用户的回话则由麦克风(37)进入免提芯片(33)经A/D转换输入电脑再经网络传输到对方,同样由于免提芯片(33)中DSP电路的消回声功能保证了网络通话过程中良好的全双工性能。 , I.e. the network call mode, of course, in this operating state, the Bluetooth can be used as a horn speaker computer work only when the operation of the computer dials a telephone network, i.e. a network hands-free call, the call in the operating state of said network, the call hands-free speech signal in the other chip (33) is transmitted via the D / a converter to an audio amplifier (34) and then played out from the speaker (36); and the user's answer by the microphone (37) enters the hands-free chips (33) the a / D converter into the computer and then transmitted to the other party via the network, since the same hands-free chips (33) echo cancellation circuit DSP function to ensure a good full-duplex network performance during a call.
CN 200610104004 2006-07-31 2006-07-31 Blue tooth loudspeaker CN101119399B (en)

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