WO2017045371A1 - 一种具备定向声音发射功能的智能穿戴设备 - Google Patents

一种具备定向声音发射功能的智能穿戴设备 Download PDF

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Publication number
WO2017045371A1
WO2017045371A1 PCT/CN2016/074831 CN2016074831W WO2017045371A1 WO 2017045371 A1 WO2017045371 A1 WO 2017045371A1 CN 2016074831 W CN2016074831 W CN 2016074831W WO 2017045371 A1 WO2017045371 A1 WO 2017045371A1
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circuit
directional
smart wearable
wearable device
directional speaker
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PCT/CN2016/074831
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English (en)
French (fr)
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杨志豪
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石姗姗
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Publication of WO2017045371A1 publication Critical patent/WO2017045371A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

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  • the present application relates to the field of smart wearable devices, for example, to a smart wearable device having a directional sound emitting function.
  • the smart wearable products with call function on the current market generally only have hands-free calling function.
  • people around can often hear the call and cannot solve personal privacy issues.
  • directional speakers have been used in some areas.
  • Directional speakers can control sound waves in specific areas where the sound waves are strong, and out of this particular area, the sound waves are weak or not.
  • today's directional speakers cannot be truly applied to smart wearable devices because of their high cost and large size.
  • the embodiment of the invention provides a smart wearable device with a directional sound emitting function, which integrates the directional speaker into the smart wearable device, solves the call privacy problem when the smart wearable device is used for talking, and reduces noise interference to the surrounding environment.
  • a smart wearable device having a directional sound emitting function comprising a main circuit board provided with a directional speaker circuit, a microprocessor, a display circuit, the directional speaker circuit and the display circuit respectively and the microprocessor Electrical connection.
  • the directional speaker circuit may include an audio signal receiving circuit, a high frequency modulating circuit, a phase locked loop, a demodulating circuit and a power amplifying circuit, and an input end of the high frequency modulating circuit is connected to the audio signal receiving circuit, the high frequency An output end of the modulation circuit is connected to an input end of the phase locked loop, an output end of the phase locked loop is connected to an input end of the demodulation circuit, and an output end of the demodulation circuit is connected to the power amplification circuit.
  • the directional speaker circuit may further include a power supply circuit that is a power supply that outputs a voltage of 2.8-5.5V, and the power supply circuit and the high frequency modulation circuit are electrically connected.
  • the directional speaker circuit may further include a bias circuit and a logic circuit, and the bias circuit and the logic circuit are electrically connected to the high frequency modulation circuit, respectively.
  • the directional speaker circuit may further include a phase detecting circuit electrically connected to the demodulating circuit.
  • the directional speaker circuit may further include an over-temperature protection circuit and an over-current protection circuit, and the over-temperature protection circuit and the over-current protection circuit are electrically connected to the power amplification circuit, respectively.
  • the directional speaker circuit may further include an horn array, and the horn array and the power amplifying circuit are electrically connected.
  • the smart wearable device can be a wearable watch or a wearable wristband.
  • the horn array can be disposed adjacent to the display circuit.
  • the horn array can be a micro directional matrix ceramic speaker.
  • a smart wearable device with a directional sound emitting function includes a main circuit board provided with a directional speaker circuit, a microprocessor, a display circuit, and the directional speaker circuit and the display circuit respectively
  • the microprocessor is electrically connected.
  • the beneficial effects of the embodiments of the present invention are that the smart wearable devices are generally small and light, and the directional speakers are integrated into the smart wearable device, thereby realizing miniaturization and lightness of the directional speakers, and simultaneously solving the call when using the smart wearable device for talking. Privacy issues reduce noise interference to the surrounding environment, reducing power consumption and manufacturing costs.
  • FIG. 1 is a schematic structural diagram of an embodiment of a smart wearable device with a directional sound emission function according to an embodiment of the present invention
  • FIG. 2 is a circuit block diagram of a directional speaker circuit according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an operation of an embodiment of a smart wearable device with a directional sound emission function according to an embodiment of the present invention
  • FIG. 4 is a cross-sectional view showing the structure of an embodiment of a smart wearable device having a directional sound emitting function according to an embodiment of the present invention.
  • 1- smart wearable device 2-main circuit board; 3-directional speaker circuit; 41-bottom shell; 42-face shell;
  • FIG. 1 is a schematic diagram of an embodiment of a smart wearable device 1 with a directional sound emission function according to an embodiment of the present invention.
  • a smart wearable device 1 having a directional sound emitting function includes a main circuit board 2 provided with a directional speaker circuit 3, a microprocessor, a display circuit, and the directional speaker circuit 3 and the display circuit respectively
  • the microprocessor is electrically connected.
  • the directional speaker circuit 3 first carries the low-frequency sound signal on the highly directional high-frequency signal, and then amplifies and radiates it into the air, and then the air will quickly filter the high-frequency signal, and the audible sound signal thereon will naturally Filter out to achieve directional propagation like a laser, so that the sound waves are controlled in a specific area. In addition to this specific area, the sound waves in other areas will be weak or not. In general, the sound in and out of a specific area of the directional loudspeaker differs by at least 3 decibels.
  • the smart wearable device 1 with the directional sound emitting function provided by the embodiment of the invention is generally small and light, and the directional speaker is integrated into the smart wearable device 1 to realize the directional speaker. Miniaturization and portability, and at the same time solve the call privacy problem when using the smart wearable device 1 to make a call, reduce noise interference to the surrounding environment, reduce power consumption and production costs.
  • FIG. 2 is a circuit block diagram of the directional speaker circuit 3 provided by the embodiment of the present invention.
  • the directional speaker circuit 3 includes an audio signal receiving circuit, a high frequency modulating circuit, a phase locked loop, a demodulating circuit, and a power amplifying circuit, and an input end of the high frequency modulating circuit is connected to the audio signal receiving circuit, An output end of the high frequency modulation circuit is connected to an input end of the phase locked loop, an output end of the phase locked loop is connected to an input end of the demodulation circuit, and an output end of the demodulation circuit is connected to the power amplification circuit.
  • the audio signal receiving circuit is configured to receive the low frequency sound signal and transmit the low frequency sound signal to the high frequency modulation circuit.
  • the high frequency modulation circuit is configured to load the low frequency sound signal received from the audio signal receiving circuit as a highly directional high frequency signal.
  • the phase locked loop is configured to maintain both the frequency and phase of the controlled oscillator in a determined relationship with the input signal.
  • the phase-locked loop is a loop-locking loop. It is a typical feedback control circuit that uses the externally input reference signal to control the frequency and phase of the internal oscillation signal of the loop to achieve automatic tracking of the input signal frequency to the input signal frequency. In the closed loop tracking circuit.
  • the demodulation circuit is configured to take out the audible sound signal in the high frequency signal.
  • the power amplifying circuit is configured to be power amplified, and the power amplifying circuit is an amplifying circuit that outputs a larger power. It generally drives the load directly and has a strong load capacity.
  • the directional speaker circuit 3 further includes a power supply circuit, and the power supply circuit is a power supply that outputs a voltage of 2.8-5.5V, and the power supply circuit and the high-frequency modulation circuit are electrically connected.
  • the power circuit is configured to supply power, and the power circuit includes a rechargeable battery 5 that can be used multiple times.
  • the rechargeable battery 5 is disposed in a cavity surrounded by the bottom case 41 and the face shell 42 of the smart wearable device 1.
  • the directional speaker circuit 3 further includes a bias circuit and a logic circuit, and the bias circuit and the logic circuit are electrically connected to the high frequency modulation circuit, respectively.
  • the amplifier formed by the transistor needs to amplify the signal voltage without distortion, and it is necessary to ensure that the emitter junction of the transistor is positively biased and the collector junction is reverse biased. That is, its working point should be set.
  • the so-called working point is to set the base, emitter and collector of the transistor to the required potential through the setting of the external circuit (according to the calculation obtain). These external circuits are called bias circuits.
  • a logic circuit is a circuit that transfers and processes discrete signals and implements digital signal logic operations and operations on a binary basis.
  • the logic circuit is divided into a combination logic circuit and a timing logic circuit.
  • the combinational logic circuit consists of an AND gate circuit, an OR gate circuit, and a NOT gate circuit.
  • the output value depends only on the current value of its input variable, independent of the past value of the input variable (ie, no memory and memory functions). ).
  • the sequential logic circuit is also composed of the above basic logic gate circuit, but there is a feedback loop, that is, its output value depends not only on the current value of the input variable but also on the past value of the input variable.
  • the directional speaker circuit 3 further includes a phase detecting circuit, and the phase detecting circuit and the demodulating circuit are electrically connected.
  • the phase detecting circuit is configured to detect the phase difference in various forms, generally including: measuring with an oscilloscope; converting the phase difference into a time interval, first measuring the time interval, and then converting into a phase difference; converting the phase difference into a voltage, First measure the voltage, then convert to phase difference; compare with standard phase shifter (zero method).
  • the directional speaker circuit 3 further includes an over-temperature protection circuit and an over-current protection circuit, and the over-temperature protection circuit and the over-current protection circuit are electrically connected to the power amplification circuit, respectively.
  • the overtemperature protection circuit is configured to power down or issue an alarm message when the temperature value exceeds a preset safety threshold.
  • the overcurrent protection circuit is configured to power down or issue an alarm message when the current value exceeds a predetermined safety threshold.
  • the directional speaker circuit 3 further includes a horn array, and the horn array and the power amplifying circuit are electrically connected.
  • the horn array is arranged in an array of a plurality of horns.
  • the horn array has several very practical features such as uniform coverage, strong directivity, and low attenuation of acoustic energy in the radiation area.
  • FIG. 3 is a working principle diagram of an embodiment of a smart wearable device 1 with a directional sound emission function according to an embodiment of the present invention.
  • the smart wearable device 1 with the directional sound emitting function provided by the embodiment of the present invention transmits the low frequency sound signal on the high-frequency signal with strong directivity through the directional speaker circuit 3, and after the high-frequency signal is amplified and filtered, The micro-directional matrix ceramic speaker is emitted into the air. During the propagation process, the air will quickly filter the high-frequency signal, and the audible sound signal will naturally filter out and realize the laser-like Directional communication. Miniature directional matrix ceramic speakers are capable of controlling sound waves in specific areas where the sound waves are strong and beyond this particular area, the sound waves decay rapidly until silent.
  • the smart wearable device 1 having a directional sound emission function may be a smart phone.
  • the smart wearable device 1 having a directional sound emission function further includes a microphone receiving circuit configured to receive a user sound signal and a volume control circuit that controls the volume of the output sound signal. The setting of the microphone receiving circuit and the volume control circuit facilitates the user's call and improves the user experience.
  • FIG. 4 is a cross-sectional view showing the structure of an intelligent wearable device 1 with a directional sound emitting function according to an embodiment of the present invention.
  • the smart wearable device 1 is a wearable watch or a wearable wristband.
  • the smart wearable device 1 is a portable electronic device that is worn directly on the body or integrated into the user's clothes or accessories.
  • the smart wearable device 1 is not only a hardware device, but also implements powerful intelligent functions through software support, data interaction, and cloud interaction.
  • Smart wearable devices 1 are mostly in the form of portable accessories that have some computing functions and can be connected to mobile phones and various types of terminals.
  • the mainstream product forms include wrist-based watches (including watches and wristbands), with feet Supported shoes (including shoes, socks or other products worn on the legs), head-supported Glass (including glasses, helmets, headbands, etc.), as well as smart clothing, school bags, crutches, accessories, etc. Product form.
  • the horn array is disposed at a position close to the display circuit.
  • the horn array is disposed at a position close to the display circuit, and is convenient for the user to maintain the call state while operating the display screen 6 of the display circuit.
  • the horn array is a micro directional matrix ceramic speaker.
  • the miniature directional matrix ceramic speaker has the advantages of ultra-thin, simple structure, no electromagnetic interference, low power consumption, excellent mid-high frequency sound, and bendability.
  • the basic structure of a ceramic speaker is to attach a very thin multilayer piezoelectric ceramic piece to a thin piece of metal foil, which they are combined to be called a diaphragm.
  • a diaphragm When the piezoelectric sheet is stretched, the diaphragm will bend upwards.
  • the vibrating diaphragm fixed to the frame is driven by a multi-layer piezoelectric ceramic sheet fed with a certain excitation electric field to generate vibration, thereby pushing air to radiate sound.
  • the driving of the multilayer piezoelectric ceramic sheet can make the ceramic speaker emit a beautiful sound.
  • a plurality of micro-matrix ceramic speakers arranged in an array form are micro-directional matrix ceramic speakers.
  • the user can only make a call by making the micro directional matrix ceramic speaker toward himself during the call, and the voice of the phone achieves good directional emission. Very good solution to the problem of privacy of the call. During the call, the noise generated by the surrounding is also reduced.
  • the smart wearable device 1 with the directional sound emitting function provided by the embodiment of the invention solves the problem of the privacy of the smart wearable product, solves the problem of miniaturization of the directional speaker, and reduces the interference to the surrounding environment.
  • the smart wearable device 1 with directional sound emitting function integrates the directional speaker into the smart wearable device 1 to solve the call privacy problem when the smart wearable device 1 is used for talking, and reduces noise interference to the surrounding environment.
  • the present application relates to a smart wearable device having a directional sound emitting function, comprising a main circuit board provided with a directional speaker circuit, a microprocessor, a display circuit, and the directional speaker circuit and the display circuit respectively
  • the microprocessor is electrically connected.
  • Smart wearable devices are generally small and light, and the directional speakers are integrated into the smart wearable device, which realizes the miniaturization and lightness of the directional speakers, and at the same time solves the call privacy problem when using the smart wearable device to make a call, thereby reducing the surrounding environment. Noise interference reduces power consumption and manufacturing costs.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Telephone Function (AREA)

Abstract

公开了一种具备定向声音发射功能的智能穿戴设备，包括主电路板，所述主电路板设置有定向扬声器电路、微处理器、显示电路，所述定向扬声器电路和显示电路分别与所述微处理器电性连接。智能穿戴设备一般都小巧轻便，将定向扬声器集成于智能穿戴设备，实现了定向扬声器的微型化和轻便化，并同时解决了使用智能穿戴设备进行通话时的通话隐私问题，减少了对周围环境的噪音干扰，降低了功耗和制作成本。

Description

一种具备定向声音发射功能的智能穿戴设备 技术领域
本申请涉及智能穿戴设备技术领域，例如涉及一种具备定向声音发射功能的智能穿戴设备。
背景技术
当前市场上带通话功能的智能穿戴产品，一般都只有免提通话功能。使用免提通话功能进行通话时，往往周围的人也能听到通话内容，无法解决个人隐私问题。目前，在一些领域，已经开始使用定向扬声器。定向扬声器能把声波控制在特定区域，在这个特定区域内的声波很强，而出了这个特定区域，声波就会很弱，甚至没有。不过，现在的定向扬声器由于成本高、体积大，还无法真正应用于智能穿戴设备。
发明内容
本发明实施例提出一种具备定向声音发射功能的智能穿戴设备，将定向扬声器集成于智能穿戴设备，解决了使用智能穿戴设备进行通话时的通话隐私问题，减少了对周围环境的噪音干扰。
本发明实施例采用以下技术方案：
一种具备定向声音发射功能的智能穿戴设备，包括主电路板，所述主电路板设置有定向扬声器电路、微处理器、显示电路，所述定向扬声器电路和显示电路分别与所述微处理器电性连接。
所述定向扬声器电路可包括音频信号接收电路、高频调制电路、锁相环、解调电路和功率放大电路，所述高频调制电路的输入端连接所述音频信号接收电路，所述高频调制电路的输出端连接所述锁相环的输入端，所述锁相环的输出端连接所述解调电路的输入端，所述解调电路的输出端连接所述功率放大电路。
所述定向扬声器电路还可包括电源电路，所述电源电路为输出2.8-5.5V电压的电源，所述电源电路和所述高频调制电路电性连接。
所述定向扬声器电路还可包括偏置电路和逻辑电路，所述偏置电路和逻辑电路分别与所述高频调制电路电性连接。
所述定向扬声器电路还可包括相位检测电路，所述相位检测电路和所述解调电路电性连接。
所述定向扬声器电路还可包括过温保护电路和过流保护电路，所述过温保护电路和过流保护电路分别与所述功率放大电路电性连接。
所述定向扬声器电路还可包括喇叭阵列，所述喇叭阵列和所述功率放大电路电性连接。
所述智能穿戴设备可以为穿戴式手表或穿戴式手环。
所述喇叭阵列可设置于靠近所述显示电路的位置。
所述喇叭阵列可以为微型定向矩阵陶瓷扬声器。
本发明实施例的具备定向声音发射功能的智能穿戴设备，包括主电路板，所述主电路板设置有定向扬声器电路、微处理器、显示电路，所述定向扬声器电路和显示电路分别与所述微处理器电性连接。本发明实施例的有益效果在于：智能穿戴设备一般都小巧轻便，将定向扬声器集成于智能穿戴设备，实现了定向扬声器的微型化和轻便化，并同时解决了使用智能穿戴设备进行通话时的通话隐私问题，减少了对周围环境的噪音干扰，降低了功耗和制作成本。
附图概述
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本发明实施例的内容和这些附图获得其他的附图。
图1是本发明实施例提供的具备定向声音发射功能的智能穿戴设备实施例的结构示意图；
图2是本发明实施例提供的定向扬声器电路的电路方框图；
图3是本发明实施例提供的具备定向声音发射功能的智能穿戴设备实施例的工作原理图；
图4是本发明实施例提供的具备定向声音发射功能的智能穿戴设备实施例的结构剖视图。
附图标记说明如下：
1-智能穿戴设备；2-主电路板；3-定向扬声器电路；41-底壳；42-面壳；
5-可充电电池；6-显示屏。
本发明的实施方式
为使本发明实施例解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本发明实施例的技术方案进行详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图1，其是本发明实施例提供的具备定向声音发射功能的智能穿戴设备1实施例的示意图。
一种具备定向声音发射功能的智能穿戴设备1，包括主电路板2，所述主电路板2设置有定向扬声器电路3、微处理器、显示电路，所述定向扬声器电路3和显示电路分别与所述微处理器电性连接。
定向扬声器电路3首先将低频声音信号载于指向性很强的高频信号上，再经过放大，放射到空气中，而后空气会把高频信号迅速过滤，其上的可听声音信号便会自然滤出，实现像激光一样定向传播，从而把声波控制在特定区域内，除了这个特定区域，其他区域对应的声波会很弱甚至没有。一般情况下，定向扬声器的特定区域范围内外的声音相差至少3个分贝。
本发明实施例提供的具备定向声音发射功能的智能穿戴设备1，智能穿戴设备1一般都小巧轻便，将定向扬声器集成于智能穿戴设备1，实现了定向扬声器 的微型化和轻便化，并同时解决了使用智能穿戴设备1进行通话时的通话隐私问题，减少了对周围环境的噪音干扰，降低了功耗和制作成本。
请参考图2，其是本发明实施例提供的定向扬声器电路3的电路方框图。
其中，所述定向扬声器电路3包括音频信号接收电路、高频调制电路、锁相环、解调电路和功率放大电路，所述高频调制电路的输入端连接所述音频信号接收电路，所述高频调制电路的输出端连接所述锁相环的输入端，所述锁相环的输出端连接所述解调电路的输入端，所述解调电路的输出端连接所述功率放大电路。
音频信号接收电路被配置为接收低频声音信号，并将该低频声音信号发送至高频调制电路。
高频调制电路被配置为将从所述音频信号接收电路接收到的低频声音信号加载为指向性很强的高频信号。
锁相环被配置为使受控振荡器的频率和相位均与输入信号保持确定关系。锁相环是锁定相位的环路，是一种典型的反馈控制电路，利用外部输入的参考信号控制环路内部振荡信号的频率和相位，实现输出信号频率对输入信号频率的自动跟踪，一般用于闭环跟踪电路。
解调电路被配置为将高频信号中的可听声音信号取出。
功率放大电路被配置为功率放大，功率放大电路是一种输出较大功率的放大电路。它一般直接驱动负载，带载能力强。
其中，所述定向扬声器电路3还包括电源电路，所述电源电路为输出2.8-5.5V电压的电源，所述电源电路和所述高频调制电路电性连接。
电源电路被配置为供电，所述电源电路包括可充电电池5，可重复多次使用。所述可充电电池5设置于所述智能穿戴设备1的底壳41和面壳42围成的空腔内。
其中，所述定向扬声器电路3还包括偏置电路和逻辑电路，所述偏置电路和逻辑电路分别与所述高频调制电路电性连接。
晶体管构成的放大器要做到不失真地将信号电压放大，就要保证晶体管的发射结正偏、集电结反偏。即应该设置它的工作点。所谓工作点就是通过外部电路的设置使晶体管的基极、发射极和集电极处于所要求的电位(可根据计算 获得)。这些外部电路就称为偏置电路。
逻辑电路是一种离散信号的传递和处理，以二进制为原理、实现数字信号逻辑运算和操作的电路。逻辑电路分为组合逻辑电路和时序逻辑电路。组合逻辑电路由“与门”电路、“或门”电路和“非门”电路组成，其输出值仅依赖于其输入变量的当前值，与输入变量的过去值无关(即不具记忆和存储功能)。时序逻辑电路也由上述基本逻辑门电路组成，但存在反馈回路，即它的输出值不仅依赖于输入变量的当前值，也依赖于输入变量的过去值。
其中，所述定向扬声器电路3还包括相位检测电路，所述相位检测电路和所述解调电路电性连接。
相位检测电路被配置为检测相位差，其形式有很多种，一般包括：用示波器测量；把相位差转换为时间间隔，先测量出时间间隔，再换算为相位差；把相位差转换为电压，先测量出电压，再换算为相位差；与标准移相器进行比较的比较法(零示法)等。
其中，所述定向扬声器电路3还包括过温保护电路和过流保护电路，所述过温保护电路和过流保护电路分别与所述功率放大电路电性连接。
过温保护电路被配置为在温度值超过预设安全阈值时，则断电或发出报警信息。
过流保护电路被配置为在电流值超过预设安全阈值时，则断电或发出报警信息。
其中，所述定向扬声器电路3还包括喇叭阵列，所述喇叭阵列和所述功率放大电路电性连接。
所述喇叭阵列为多个喇叭以阵列形式排布设置。喇叭阵列具有覆盖均匀、指向性强、辐射区内声能衰减较小等数个非常实用的特点。
请参考图3，其是本发明实施例提供的具备定向声音发射功能的智能穿戴设备1实施例的工作原理图。
本发明实施例提供的具备定向声音发射功能的智能穿戴设备1，通过定向扬声器电路3，将低频声音信号载于指向性很强的高频信号之上，高频信号经过放大滤波及处理后，通过微型定向矩阵陶瓷扬声器发射到空气中，传播过程中，空气会把高频信号迅速过滤，其中可听声音信号会自然滤出，实现像激光一样 定向传播。微型定向矩阵陶瓷扬声器能够把声波控制在特定区域内，在这个特定区域内的声波很强，超出这个特定区域，声波就会迅速衰减，直到无声。
所述具备定向声音发射功能的智能穿戴设备1可以为智能手机。所述具备定向声音发射功能的智能穿戴设备1，还包括被配置为接收用户声音信号的麦克风接收电路和控制输出声音信号音量的音量控制电路。麦克风接收电路和音量控制电路的设置，方便了用户的通话，提高用户体验度。
本领域技术人员可以根据公知常识，在本技术方案的技术背景下，选用各种形式的电路连接关系和各种不同参数的电子元器件以实现上述各类电路对应的功能，此处不再举例赘述。
请参考图4，其是本发明实施例提供的具备定向声音发射功能的智能穿戴设备1实施例的结构剖视图。
其中，所述智能穿戴设备1为穿戴式手表或穿戴式手环。
智能穿戴设备1即直接穿在身上，或是整合到用户的衣服或配件的一种便携式电子设备。智能穿戴设备1不仅仅是一种硬件设备，更可以通过软件支持以及数据交互、云端交互来实现强大的智能功能。
智能穿戴设备1多以具备部分计算功能、可连接手机及各类终端的便携式配件的形式存在，主流的产品形态包括以手腕为支撑的watch类(包括手表和腕带等产品)，以脚为支撑的shoes类(包括鞋、袜子或者其他腿上佩戴产品)，以头部为支撑的Glass类(包括眼镜、头盔、头带等)，以及智能服装、书包、拐杖、配饰等各类非主流产品形态。
其中，所述喇叭阵列设置于靠近所述显示电路的位置。
所述喇叭阵列设置于靠近所述显示电路的位置，方便用户一边操作显示电路的显示屏6，一边保持通话状态。
其中，所述喇叭阵列为微型定向矩阵陶瓷扬声器。
微型定向矩阵陶瓷扬声器具有超薄、结构简单、无电磁干扰、低功耗、出色的中高频音色、可弯曲等优点。
陶瓷扬声器的基本构成是将一个很薄的多层压电陶瓷片附在一片很薄的金属薄片上，他们组合起来被称作振动膜。当压电片伸展的时候，振动膜就会向上弯曲，当压电片收缩的时候，振动膜就会向下弯曲，所以，当给振动膜加上一个交替变 化的电压，那么它就会随着电压的变化而不停的上下弯曲。固定在框架上的振动膜片经馈以一定激励电场的多层压电陶瓷片驱动后产生振动，从而推动空气以辐射声音。而多层压电陶瓷片的驱动，能够使陶瓷扬声器发出优美动听的声音。多个以阵列形式排布设置的微型矩阵陶瓷扬声器为微型定向矩阵陶瓷扬声器。
通过使用本发明实施例提供的具备定向声音发射功能的智能穿戴设备1，使得用户在通话过程中，只需将微型定向矩阵陶瓷扬声器朝向自己就可接打电话，电话的声音实现良好的定向发射，非常好的解决了通话隐私保密的问题。在通话过程中，也降低了对周围产生的噪声干扰。本发明实施例提供的具备定向声音发射功能的智能穿戴设备1，解决了智能穿戴产品通话隐私问题、解决了定向扬声器微型化问题，也降低对周围环境的干扰。
一种具备定向声音发射功能的智能穿戴设备1，将定向扬声器集成于智能穿戴设备1，解决了使用智能穿戴设备1进行通话时的通话隐私问题，减少了对周围环境的噪音干扰。
以上内容仅为本发明的实施例，对于本领域的普通技术人员，依据本发明的思想，在实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本发明的限制。
工业实用性
本申请涉及一种具备定向声音发射功能的智能穿戴设备，包括主电路板，所述主电路板设置有定向扬声器电路、微处理器、显示电路，所述定向扬声器电路和显示电路分别与所述微处理器电性连接。智能穿戴设备一般都小巧轻便，将定向扬声器集成于智能穿戴设备，实现了定向扬声器的微型化和轻便化，并同时解决了使用智能穿戴设备进行通话时的通话隐私问题，减少了对周围环境的噪音干扰，降低了功耗和制作成本。

Claims (10)

  1. 一种具备定向声音发射功能的智能穿戴设备，包括主电路板，所述主电路板设置有定向扬声器电路、微处理器、显示电路，所述定向扬声器电路和显示电路分别与所述微处理器电性连接。
  2. 根据权利要求1所述的设备，其中，所述定向扬声器电路包括音频信号接收电路、高频调制电路、锁相环、解调电路和功率放大电路，所述高频调制电路的输入端连接所述音频信号接收电路，所述高频调制电路的输出端连接所述锁相环的输入端，所述锁相环的输出端连接所述解调电路的输入端，所述解调电路的输出端连接所述功率放大电路。
  3. 根据权利要求2所述的设备，其中，所述定向扬声器电路还包括电源电路，所述电源电路为输出2.8-5.5V电压的电源，所述电源电路和所述高频调制电路电性连接。
  4. 根据权利要求2所述的设备，其中，所述定向扬声器电路还包括偏置电路和逻辑电路，所述偏置电路和逻辑电路分别与所述高频调制电路电性连接。
  5. 根据权利要求2所述的设备，其中，所述定向扬声器电路还包括相位检测电路，所述相位检测电路和所述解调电路电性连接。
  6. 根据权利要求2所述的设备，其中，所述定向扬声器电路还包括过温保护电路和过流保护电路，所述过温保护电路和过流保护电路分别与所述功率放大电路电性连接。
  7. 根据权利要求2所述的设备，其中，所述定向扬声器电路还包括喇叭阵列，所述喇叭阵列和所述功率放大电路电性连接。
  8. 根据权利要求7所述的设备，其中，所述智能穿戴设备为穿戴式手表或穿戴式手环。
  9. 根据权利要求8所述的设备，其中，所述喇叭阵列设置于靠近所述显示电路的位置。
  10. 根据权利要求7所述的设备，其中，所述喇叭阵列为微型定向矩阵陶瓷扬声器。
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