WO2017008225A1 - 电子系统去噪装置、穿戴式显示装置及电子装置 - Google Patents

电子系统去噪装置、穿戴式显示装置及电子装置 Download PDF

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WO2017008225A1
WO2017008225A1 PCT/CN2015/083871 CN2015083871W WO2017008225A1 WO 2017008225 A1 WO2017008225 A1 WO 2017008225A1 CN 2015083871 W CN2015083871 W CN 2015083871W WO 2017008225 A1 WO2017008225 A1 WO 2017008225A1
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signal processing
processing unit
ground
power supply
ground line
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PCT/CN2015/083871
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English (en)
French (fr)
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李伟
刘自鸿
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深圳市柔宇科技有限公司
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Priority to CN201580000926.3A priority Critical patent/CN105519132A/zh
Priority to PCT/CN2015/083871 priority patent/WO2017008225A1/zh
Priority to US15/057,886 priority patent/US9843860B2/en
Publication of WO2017008225A1 publication Critical patent/WO2017008225A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication

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  • the present invention relates to a denoising technique for an electronic system, and more particularly to an electronic system denoising device, a wearable display device having the denoising device, and an electronic device.
  • the prior art proposes a solution to achieve noise in the isolated power signal by supplying power to the module that is easily interfered.
  • the present invention provides a solution for noise caused by ground level interference in a complex electronic system.
  • Embodiments of the present invention provide an electronic system denoising device including a power supply, a first signal processing unit, a second signal processing unit, and an isolation transformer;
  • the power supply is connected to the first signal processing unit, and is connected to the second signal processing unit through the isolation transformer for supplying power to the first signal processing unit and the second signal processing unit;
  • the first signal processing unit includes a first signal output end and a first ground end; wherein The first signal output end is configured to output a data signal to the second signal processing unit, and the first ground end is used to connect the first ground line;
  • the second signal processing unit includes a second ground for connecting the second ground.
  • the present invention also provides a wearable display device comprising a power supply, a digital audio and video unit, an analog audio unit, and an isolation transformer;
  • the power supply is connected to the digital audio and video unit, and is connected to the analog audio unit through the isolation transformer for supplying power to the digital audio and video unit and the analog audio unit;
  • the digital audio and video unit includes an audio output end and a first ground end; wherein the audio output end is configured to output an audio signal to the analog audio unit, and the first ground end is used to connect the first ground line;
  • the analog audio unit includes a second ground for connecting the second ground.
  • the present invention also provides an electronic device comprising the electronic system denoising device according to any of the above.
  • FIG. 1 is a schematic structural diagram of an electronic system denoising device according to a first embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of an electronic device according to a second embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.
  • connection and “connected” are to be understood broadly, and may be, for example, electrically connected or may communicate with each other; It can also be indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements.
  • intermediate medium can be the internal communication of two elements or the interaction of two elements.
  • the electronic system denoising device 10 includes a power supply 11, a first signal processing unit 12, and a second signal processing unit 13. And an isolation transformer 14.
  • the power supply 11 is connected to the first signal processing unit 12, and is connected to the second signal processing unit 13 through the isolation transformer 14 for supplying power to the first signal processing unit 12 and the second signal processing unit 13.
  • First signal processing unit 12 The first signal output terminal 121 and the first ground terminal 122 are included; wherein the first signal output terminal 121 is for outputting a data signal to the second signal processing unit 13, and the first ground terminal 122 is used for connecting the first ground line 15.
  • the second signal processing unit 13 includes a second ground terminal 131 for connecting the second ground line 16.
  • the electronic system denoising device 10 connects the first ground line 15 and the second ground line 16 of the first signal processing unit 12 and the second signal processing unit 13 with the equal potential of the second ground line 16 through the isolation transformer 14 respectively.
  • the physical division of the bits is such that the current return paths of the first signal processing unit 12 and the second signal processing unit 13 do not overlap, thereby avoiding interference of the ground noise generated by the return current of the first signal processing unit 12 to the second signal processing unit 13. .
  • the realization of the same power supply 11 power supply mode effectively solve the noise problem caused by ground level interference.
  • the first signal processing unit 12 includes a first voltage stabilizing module 123
  • the second signal processing unit 13 includes a second voltage stabilizing module 132.
  • the positive pole of the power supply 11 is connected to the first voltage stabilizing module 123, and through the isolation transformer. 14 is connected to the second voltage stabilizing module 132.
  • the first end of the primary winding of the isolation transformer 14 is connected to the positive pole of the power supply 11
  • the second end is connected to the first ground 15
  • the first end of the secondary winding is connected to the second voltage regulator module 132
  • the second end is connected Second ground line 16.
  • the first ground line 15 is connected to the second ground line 16 at a single point.
  • the first ground line 15 and the second ground line 16 are connected by a 0 ⁇ resistor. Since the circuit formed by the first signal processing unit 12 and the power supply 11 and the circuit formed by the isolation transformer 14 and the second signal processing unit 13 are separated, the method realizes the unification of the grounding potentials of the two circuits, and ensures the two sets of audio signals. Integrity, without signal distortion due to different ground potentials of the first ground line 15 and the second ground line 16.
  • An electronic device includes the electronic system denoising device according to any of the above embodiments.
  • the electronic device may be a wearable display device.
  • the wearable display device includes a display device (not shown) having a display output, and an earphone device (not shown) for audio output, and the electronic system denoising device provided by the above embodiment.
  • the display device includes a micro display and an optical module, wherein the micro display provides a display source, and the optical module projects the display source to the eyes of the user wearing the wearable display device through a preset path to provide a near-eye display.
  • the headset device is used to provide audio output. Since the display device and the earphone device of the wearable display device belong to the technical content known to those skilled in the art, details are not described herein again.
  • the electronic system denoising device 20 in this embodiment includes a power supply DC, a digital audio and video unit 22, an analog audio unit 23, and an isolation transformer 24.
  • the power supply DC is connected to the digital audio and video unit 22, and is connected to the analog audio unit 23 through the isolation transformer 24 for supplying power to the digital audio and video unit 22 and the analog audio unit 23.
  • the digital audio and video unit 22 includes a first ground terminal DGND, a first voltage stabilizing module 223, and an audio output terminal 221.
  • the audio output terminal 221 specifically includes a positive output terminal R-spk+ and a negative output terminal R-spk of the right channel audio output terminal. - The positive output terminal L-spk+ and the negative output terminal L-spk- of the left channel audio output.
  • the first voltage stabilizing module 223 is connected to the positive polarity "+" of the power supply DC, the audio output terminal 221 is used to output the audio signal to the analog audio unit 23, and the first ground terminal DGND is used to connect the first ground line GND1.
  • the first ground line GND1 is connected to the negative terminal "-" of the power supply source 21.
  • the analog audio unit 23 includes a second ground terminal AGND that is connected to the second ground line GND2, and a second voltage stabilizing module 232 that is connected to the power supply DC positive "+" through the isolation transformer 24.
  • the wearable display device also includes a speaker 28 that is coupled to the analog audio output 238 of the analog audio unit 23.
  • the left speaker 28 and the right speaker 28 may be respectively disposed in the left and right earphone bodies of the earphone device.
  • the analog audio output 238 includes a positive output R-spk+ and a negative output that output a right channel audio signal to the right channel audio output of the right speaker 28.
  • R-spk- outputs the left channel audio signal to the positive output terminal L-spk+ and the negative output terminal L-spk- of the left channel audio output terminal of the left speaker 28.
  • the audio signal outputted by the audio output terminal 221 of the digital audio and video unit 22 may be separated and decoded according to the digital audio and video signal by the digital circuit 225 to obtain an analog audio signal.
  • the analog audio unit 23 amplifies the signal via the amplifying circuit 235 according to the analog audio signal, and the speaker 28 outputs the audio.
  • the analog video signal separated and decoded by the digital audio and video signal via the digital circuit 225 can be output to a microdisplay of the display device for display output of the display source.
  • the first end of the primary winding of the isolation transformer 24 is connected to the positive "+" of the power supply DC, the second end is connected to the first ground GND1, the first end of the secondary winding is connected to the second voltage stabilizing module 232, and the second end is connected.
  • the power supply DC is a DC power source, and the primary winding is also connected to a DC/AC converter 27 for converting the DC current supplied by the power supply DC to AC to provide secondary winding generation. Voltage.
  • the first ground line is connected to the second ground line at a single point.
  • the first ground line GND1 and the second ground line GND2 can be connected by a 0 ⁇ resistor. Since the loop formed by the digital audio and video unit 22 and the power supply DC, and the loop formed by the isolation transformer 24 and the analog audio unit 23, the method realizes the uniformity of the grounding potential of the two loops, and ensures the integrity of the two sets of audio signals. The signal distortion is not caused by the difference in the ground potential of the first ground line 15 and the second ground line 16.
  • a wearable display device physically separates the equal potentials of the first ground line GND1 and the second ground line GND2, respectively, to which the digital audio and video unit 22 and the analog audio unit 23 are connected by the isolation transformer 24, so that The current return paths of the digital audio and video unit 22 and the analog audio unit 23 do not overlap, thereby avoiding the influence of the ground noise generated by the digital audio and video unit 22 return current on the analog audio unit 23.
  • the noise caused by the ground level interference in the analog audio unit 23 in a complex electronic system is solved.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

一种电子系统去噪装置，包括供电电源（11），第一信号处理单元（12），第二信号处理单元（13）以及隔离变压器（14）；所述供电电源（11），连接所述第一信号处理单元（12），并通过所述隔离变压器（14）连接所述第二信号处理单元（13），用于为第一信号处理单元（12）及第二信号处理单元（13）供电；所述第一信号处理单元（12），包括第一信号输出端（121）以及第一接地端（122）；其中，第一信号输出端（121）用于输出数据信号至所述第二信号处理单元（13），所述第一接地端（122）用于连接第一地线（15）；所述第二信号处理单元（13），包括第二接地端（131），用于连接第二地线（16）。上述装置通过隔离变压器避免了第一信号处理单元回流电流产生的地噪声对第二信号处理单元的影响。

Description

电子系统去噪装置、穿戴式显示装置及电子装置 技术领域
本发明涉及电子系统的去噪技术，尤其涉及一种电子系统去噪装置、具有该去噪装置的穿戴式显示装置及电子装置。
背景技术
随着电子装置的功能性越来越丰富，其电子系统也越来越复杂，当电子系统中包括的某一模块产生的信号导致地电平存在噪声，容易引起同一系统中模拟小信号受到干扰。
有鉴于此，现有技术提出了一种解决方式，通过对易被干扰的模块单独提供电源进行供电，实现隔离电源信号中的噪声。
但上述现有技术的方案需增加电源的数量，一方面增加了电子装置的成本，另一方面，也增加了电子装置的重量。
发明内容
为解决上述现有技术存在的问题，本发明提供了一种在复杂电子系统中因为地电平干扰引起的噪声的解决方案。
本发明的实施方式提供了一种电子系统去噪装置，包括供电电源，第一信号处理单元，第二信号处理单元以及隔离变压器；其中，
所述供电电源，连接所述第一信号处理单元，并通过所述隔离变压器连接所述第二信号处理单元，用于为第一信号处理单元及第二信号处理单元供电；
所述第一信号处理单元，包括第一信号输出端以及第一接地端；其中， 第一信号输出端用于输出数据信号至所述第二信号处理单元，所述第一接地端用于连接第一地线；
所述第二信号处理单元，包括第二接地端，用于连接第二地线。
本发明还提供了一种穿戴式显示装置，包括供电电源，数字音视频单元，模拟音频单元，以及隔离变压器；其中，
所述供电电源，连接所述数字音视频单元，并通过所述隔离变压器连接所述模拟音频单元，用于为数字音视频单元及模拟音频单元供电；
所述数字音视频单元，包括音频输出端以及第一接地端；其中，音频输出端用于输出音频信号至所述模拟音频单元，所述第一接地端用于连接第一地线；
所述模拟音频单元，包括第二接地端，用于连接第二地线。
本发明还提供了一种电子装置，包括上述任一项所述的电子系统去噪装置。
本发明实施例提供的一种电子系统去噪装置及具有该去噪装置的穿戴式显示装置及电子装置，通过隔离变压器避免了第一信号处理单元回流电流产生的地噪声对第二信号处理单元的影响。从而解决了因地电平干扰引起噪声的问题。
附图说明
下列附图用于结合具体实施方式详细说明本发明的各个实施方式。应当理解，附图中示意出的各元件并不代表实际的大小及比例关系，仅是为了清楚说明而示意出来的示意图，不应理解成对本发明的限制。
图1是本发明第一实施例提供的一种电子系统去噪装置的结构示意图。
图2是本发明第二实施例提供的一种电子装置的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合多个实施方式及附图，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施方式仅仅用以解释本发明，并不用于限定本发明。并且，其显示不代表本发明各元件的实际比例关系，仅做示意。
在本发明的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
图1是本发明第一实施例提供的电子系统去噪装置的结构示意图，如图所示，该电子系统去噪装置10包括供电电源11，第一信号处理单元12，第二信号处理单元13以及隔离变压器14。其中，供电电源11连接第一信号处理单元12，并通过隔离变压器14连接第二信号处理单元13，用于为第一信号处理单元12及第二信号处理单元13供电。第一信号处理单元12 包括第一信号输出端121以及第一接地端122；其中，第一信号输出端121用于输出数据信号至第二信号处理单元13，第一接地端122用于连接第一地线15。第二信号处理单元13包括第二接地端131，用于连接第二地线16。
本发明该实施例提供的一种电子系统去噪装置10通过隔离变压器14将第一信号处理单元12和第二信号处理单元13分别连接的第一地线15、第二地线16的等电势位物理分割，使得第一信号处理单元12和第二信号处理单元13的电流回流路径不会重叠，从而避免了第一信号处理单元12回流电流产生的地噪声对第二信号处理单元13的干扰。实现了同一供电电源11供电的方式下，有效解决地电平干扰引起的噪声问题。
较优的，第一信号处理单元12包括第一稳压模块123，第二信号处理单元13包括第二稳压模块132，供电电源11的正极连接至第一稳压模块123，以及通过隔离变压器14连接至第二稳压模块132。具体的，隔离变压器14的初级绕组的第一端连接供电电源11的正极，第二端连接第一地线15，次级绕组的第一端连接第二稳压模块132，第二端连接第二地线16。
较优方式中，第一地线15与第二地线16单点连接。如通过一个0Ω电阻把第一地线15及第二地线16连接起来。由于第一信号处理单元12与供电电源11构成的回路、和隔离变压器14与第二信号处理单元13构成的回路分离，该方式实现了两条回路接地电势的统一，保证了两组音频信号的完整性，而不会因第一地线15、第二地线16的接地电势不同而导致信号失真。
本发明第二实施例提供的电子装置，包括上述实施例任一实施方式的电子系统去噪装置。
作为电子装置的一种实施示例，该电子装置可以为穿戴式显示装置。 该穿戴式显示装置包括具有显示输出的显示装置(未示出)，以及音频输出的耳机装置(未示出)，以及上述实施例提供的电子系统去噪装置。作为一种实施方式，显示装置包括微型显示器及光学模组，其中微型显示器提供显示源，光学模组通过预设路径将该显示源投射至佩戴该穿戴式显示装置的用户的眼睛，提供近眼显示。耳机装置用于提供音频输出。由于穿戴式显示装置的显示装置及耳机装置属于领域内技术人员知悉的技术内容，在此不再赘述。该实施例中电子系统去噪装置20包括供电电源DC，数字音视频单元22，模拟音频单元23，以及隔离变压器24。可以理解的是，该示例中的数字音视频单元22对应于上述实施例中的第一信号处理单元12，模拟音频单元23对应于上述第二信号处理单元13。其中，供电电源DC连接数字音视频单元22，并通过隔离变压器24连接模拟音频单元23，用于为数字音视频单元22及模拟音频单元23供电。数字音视频单元22包括第一接地端DGND、第一稳压模块223及音频输出端221，该音频输出端221具体包括右声道音频输出端的正输出端R-spk+及负输出端R-spk-，左声道音频输出端的正输出端L-spk+及负输出端L-spk-。其中，第一稳压模块223连接供电电源DC的正极“+”，音频输出端221用于输出音频信号至模拟音频单元23，第一接地端DGND用于连接第一地线GND1，该实施方式中，第一地线GND1连接供电电源21的负极“-”。模拟音频单元23包括连接第二地线GND2的第二接地端AGND，以及通过隔离变压器24连接供电电源DC正极“+”的第二稳压模块232。
该穿戴式显示装置还包括扬声器28，连接模拟音频单元23的模拟音频输出端238。具体的可以包括左扬声器28及右扬声器28，分别容置于耳机装置的左、右耳机体中。该模拟音频输出端238包括输出右声道音频信号至右扬声器28的右声道音频输出端的正输出端R-spk+及负输出端 R-spk-，输出左声道音频信号至左扬声器28的左声道音频输出端的正输出端L-spk+及负输出端L-spk-。
具体的，数字音视频单元22的音频输出端221输出的音频信号可以为经过数字电路225根据数字音视频信号分离并解码得到模拟音频信号。模拟音频单元23根据该模拟音频信号经放大电路235将信号放大后供扬声器28输出该音频。数字音视频信号经数字电路225分离并解码得到的模拟视频信号可输出至显示装置的微型显示器，以供显示输出该显示源。
隔离变压器24的初级绕组的第一端连接供电电源DC的正极“+”，第二端连接第一地线GND1，次级绕组的第一端连接第二稳压模块232，第二端连接第二地线GND2。该实施例中供电电源DC为直流电源，初级绕组还连接至直流/交流转换器27，该直流/交流转换器27用于将供电电源DC提供的直流电流转换为交流，以提供次级绕组生成电压。
其中，第一地线与第二地线单点连接。具体的可以通过一个0Ω电阻把第一地线GND1及第二地线GND2连接起来。由于数字音视频单元22与供电电源DC构成的回路、和隔离变压器24与模拟音频单元23构成的回路分离，该方式实现了两条回路接地电势的统一，保证了两组音频信号的完整性，而不会因第一地线15、第二地线16的接地电势不同而导致信号失真。
本发明该实施例提供的一种穿戴式显示装置通过隔离变压器24将数字音视频单元22和模拟音频单元23分别连接的第一地线GND1、第二地线GND2的等电势位物理分割，使得数字音视频单元22和模拟音频单元23的电流回流路径不会重叠，从而避免了数字音视频单元22回流电流产生的地噪声对模拟音频单元23的影响。解决了在复杂电子系统中因地电平干扰模拟音频单元23引起的噪声。
以上所述仅为本发明的较佳实施方式而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (13)

  1. 一种电子系统去噪装置，其特征在于，包括供电电源，第一信号处理单元，第二信号处理单元以及隔离变压器；其中，
    所述供电电源，连接所述第一信号处理单元，并通过所述隔离变压器连接所述第二信号处理单元，用于为第一信号处理单元及第二信号处理单元供电；
    所述第一信号处理单元，包括第一信号输出端以及第一接地端；其中，第一信号输出端用于输出数据信号至所述第二信号处理单元，所述第一接地端用于连接第一地线；
    所述第二信号处理单元，包括第二接地端，用于连接第二地线。
  2. 如权利要求1所述的电子系统去噪装置，其特征在于，所述第一地线连接所述供电电源的负极。
  3. 如权利要求2所述的电子系统去噪装置，其特征在于，所述第一信号处理单元包括第一稳压模块，所述供电电源连接第一稳压模块；所述第二信号处理单元包括第二稳压模块，所述供电电源通过所述隔离变压器连接第二稳压模块。
  4. 如权利要求3所述的电子系统去噪装置，其特征在于，所述隔离变压器的初级绕组的第一端连接所述供电电源的正极，第二端连接所述第一地线；次级绕组的第一端连接所述第二稳压模块，第二端连接所述第二地线。
  5. 如权利要求1-4任一项所述的电子系统去噪装置，其特征在于，所述第一地线与第二地线单点连接。
  6. 一种穿戴式显示装置，其特征在于，包括供电电源，数字音视频单元， 模拟音频单元，以及隔离变压器；其中，
    所述供电电源，连接所述数字音视频单元，并通过所述隔离变压器连接所述模拟音频单元，用于为数字音视频单元及模拟音频单元供电；
    所述数字音视频单元，包括音频输出端以及第一接地端；其中，音频输出端用于输出音频信号至所述模拟音频单元，所述第一接地端用于连接第一地线；
    所述模拟音频单元，包括第二接地端，用于连接第二地线。
  7. 如权利要求6所述的穿戴式显示装置，其特征在于，所述第一地线连接所述供电电源的负极。
  8. 如权利要求7所述的穿戴式显示装置，其特征在于，所述数字音视频单元包括第一稳压模块，所述供电电源连接第一稳压模块；
    所述模拟音频单元包括第二稳压模块，所述供电电源通过所述隔离变压器连接第二稳压模块。
  9. 如权利要求8所述的穿戴式显示装置，其特征在于，所述隔离变压器的初级绕组的第一端连接所述供电电源的正极，第二端连接所述第一地线；次级绕组的第一端连接所述第二稳压模块，第二端连接所述第二地线。
  10. 如权利要求9所述的穿戴式显示装置，其特征在于，所述初级绕组还连接至直流/交流转换器，用于将所述供电电源所提供的直流电流转换为交流，提供次级绕组生成电压。
  11. 如权利要求6所述的穿戴式显示装置，还包括扬声器，所述模拟音频单元还包括模拟音频输出端，所述扬声器连接所述模拟音频输出端。
  12. 如权利要求6-11任一项所述的穿戴式显示装置，其特征在于，所述 第一地线与第二地线单点连接。
  13. 一种电子装置，其特征在于，包括如权利要求1-5任一项所述的电子系统去噪装置。
PCT/CN2015/083871 2015-07-13 2015-07-13 电子系统去噪装置、穿戴式显示装置及电子装置 WO2017008225A1 (zh)

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