WO2016011873A1 - 一种耳机 - Google Patents

一种耳机 Download PDF

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Publication number
WO2016011873A1
WO2016011873A1 PCT/CN2015/082478 CN2015082478W WO2016011873A1 WO 2016011873 A1 WO2016011873 A1 WO 2016011873A1 CN 2015082478 W CN2015082478 W CN 2015082478W WO 2016011873 A1 WO2016011873 A1 WO 2016011873A1
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WO
WIPO (PCT)
Prior art keywords
earpiece
frequency divider
speaker
earphone
switch
Prior art date
Application number
PCT/CN2015/082478
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English (en)
French (fr)
Inventor
马恒达
Original Assignee
马恒达
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Publication date
Application filed by 马恒达 filed Critical 马恒达
Priority to JP2017600009U priority Critical patent/JP3211273U/ja
Priority to US15/325,727 priority patent/US20170164112A1/en
Publication of WO2016011873A1 publication Critical patent/WO2016011873A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/04Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091Details not provided for in groups H04R1/1008 - H04R1/1083
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/12Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/033Headphones for stereophonic communication
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K21/00Details of pulse counters or frequency dividers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/12Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14Cross-over networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/02Spatial or constructional arrangements of loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S5/00Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Definitions

  • the utility model relates to an earphone.
  • the purpose of the utility model is to provide an earphone, wherein the sound effect of the earphone reduction is closer to natural and real, so that the left and right ears of the user can hear the listening effect similar to the real environment.
  • the present invention provides the following technical solutions:
  • An earphone includes a left earpiece, a right earpiece, a sound source input terminal, a first frequency divider and a second frequency divider.
  • a left main horn is disposed in the left earpiece, and a main right horn is disposed in the right earpiece.
  • the sound source input end includes a left channel audio input end and a right channel audio input end, and the left channel audio input end is electrically connected to the main left speaker through the first frequency divider, the right sound
  • the track audio input is electrically connected to the main right speaker through the second frequency divider.
  • the earphone further includes a second left speaker, a second right speaker, a third frequency divider and a fourth frequency divider.
  • the secondary left speaker is disposed in the left earpiece, and the secondary right speaker is disposed in the right earpiece.
  • the third frequency divider is electrically connected to the second right horn, and the third frequency divider is configured to pass the audio signal input by the left channel audio input terminal to the second right horn after being frequency-divided.
  • the fourth frequency divider is electrically connected to the secondary left speaker, and the fourth frequency divider is configured to transmit the audio signal input by the right channel audio input terminal to the secondary left speaker after being frequency-divided. .
  • the earphone further includes a left switch and a right switch.
  • the left switch is electrically connected between the left channel audio input end and the third frequency divider, and is configured to control the opening of the secondary right speaker.
  • the right switch is electrically connected between the right channel audio input end and the fourth frequency divider for controlling the opening of the secondary left speaker.
  • the earphone further includes a two-channel switch, and the two-channel switch is electrically connected to the left switch and the right switch for simultaneously controlling opening of the left switch and the right switch.
  • the left earpiece is further provided with a first duct and a second duct, and the first duct is disposed between the main left horn and an outer surface of the left earpiece for transmitting the main left horn
  • the audio signal is led to the outside of the left earpiece
  • the second conduit is disposed between the secondary left speaker and the outer surface of the left earpiece for outputting the audio signal from the secondary left speaker to the
  • the length of the second conduit is N times the length of the first conduit, and the N is a number greater than or equal to 1.
  • the right earpiece is further provided with a third duct and a fourth duct, and the third duct is disposed between the main right horn and the outer surface of the right earpiece for transmitting the main right horn
  • the audio signal is led to the outside of the right earpiece
  • the fourth conduit is disposed between the second right horn and the outer surface of the right earpiece for outputting the audio signal emitted by the second right horn to the
  • the length of the fourth conduit is N times the length of the third conduit, and the N is a number greater than or equal to 1.
  • the earphone further includes a left audio line and a right audio line, the first frequency divider and the third frequency divider are disposed in the left audio line, the second frequency divider and the first A four-way divider is provided in the right audio line.
  • the earphone provided by the utility model adds a secondary left speaker in the left earpiece of the earphone, and adds a second right speaker in the right earpiece of the earphone, and the secondary left speaker and the second right speaker are used for restoring the passing point.
  • the audio signal processed by the frequency converter When the user simultaneously wears the left and right earpieces on the ear, when When playing a general sound file, the sounds processed by the crossover are added to the headphones on both the left and the right sides, simulating the listening characteristics of human beings in a normal environment, so that the user can experience an unprecedented real and natural environment listening. Feel, the sound will appear in front of the natural sound, not the top of the person's head.
  • the sounds in the left and right range are no longer unusually broad and exaggerated, but rather a natural feeling in a certain range in front of them.
  • FIG. 1 is a schematic diagram of an earphone provided by an embodiment of the present invention.
  • FIG. 3 is a schematic view showing the internal structure of the left earpiece of the earphone of FIG. 1.
  • FIG. 4 is a schematic view showing the internal structure of the right earpiece of the earphone of FIG. 1.
  • the earphone 100 provided by the embodiment of the present invention includes a left earpiece 10, a right earpiece 20, a sound source input terminal 50, a first frequency divider 71, a second frequency divider 72, and a third point.
  • the frequency converter 73 and the fourth frequency divider 74 are included in the earphone 100.
  • the earphone 100 is an in-ear earphone. In other embodiments, the earphone 100 can also be a head-mounted earphone.
  • the sound source input 50 includes a left channel audio input 51 and a right channel audio input 52.
  • the left channel audio input terminal 51 is electrically connected to the main left speaker 11 through the first frequency divider 71.
  • the right channel audio input terminal 52 is electrically connected to the main right speaker 21 through the second frequency divider 72.
  • the third frequency divider 73 is electrically connected to the secondary right horn 22, and the third frequency divider 73 is configured to transmit the audio signal input by the left channel audio input terminal 51 to a frequency division process.
  • the secondary right horn 22 is.
  • the fourth frequency divider 74 is electrically connected to the secondary left speaker 12, and the fourth frequency divider 74 is configured to transmit the audio signal input by the right channel audio input terminal 52 to a frequency division process.
  • the first frequency divider 71 and the third frequency divider 73 may also be disposed in the cavity of the left earpiece 10, the second frequency divider 72 and the fourth point.
  • the frequency converter 74 can also be disposed within the cavity of the right earpiece 20.
  • the earphone 100 provided by the present invention adds a secondary right speaker 22 to the right earpiece 20 of the earphone 100 by adding a secondary left speaker 12 to the left earpiece 10 of the earphone 100, the secondary right speaker 22 and the The secondary left horn 12 is for restoring the audio signals processed by the third and fourth frequency dividers 73, 74, respectively.
  • the left and right earpieces 10, 20 When the user simultaneously wears the left and right earpieces 10, 20 on the ear, when the general sound file is played, because in the left earpiece 10 and the right earpiece 20, except the main left speaker 11 and the main In addition to the sound emitted by the right horn 21, the sound processed by the third and fourth frequency dividers 73, 74 is added, the frequency of the sound being different from the main left horn 11 and the main right horn 21 The frequency of the sound emitted.
  • an audio signal input from the right channel audio input terminal 52 can be heard in the left earpiece 10
  • an audio signal input from the left channel audio input terminal 51 can be heard in the right earpiece 20
  • the left and right earpieces 20 of the earphone 100 simulate the listening characteristics of a human being in a normal environment, so that the user can experience an unprecedented real and natural environment listening experience. Therefore, when the user uses the earphone 100, the sound will appear in front of the natural sound, instead of the top of the person's head, the sound of the left and right range is no longer unusually broad and exaggerated, but rather a certain range in front of the face. The natural feeling inside.
  • the earphone 100 further includes a left switch 61, a right switch 62, and a two-channel switch 60.
  • the left switch 61 is electrically connected between the left channel audio input terminal 51 and the third frequency divider 73 for controlling the opening of the secondary right speaker 22.
  • the right switch 62 is electrically connected between the right channel audio input terminal 52 and the fourth frequency divider 74 for controlling the opening of the secondary left speaker 12.
  • the two-channel switch 60 is electrically connected to the left switch 61 and the right switch 62 for simultaneously controlling the opening of the left switch 61 and the right switch 62.
  • the two-channel switch 60 is disposed on the wire of the earphone 100 to facilitate user operation.
  • the settings of the left switch 61, the right switch 62, and the two-channel switch 60 enable the earphone 100 to have a sound effect switching function.
  • the user does not want to use the functions of the secondary right speaker 22 and the secondary left speaker 12 of the earphone 100, the user can turn off the two-channel switcher 60 to use the sound effect of the conventional earphone. Therefore, the earphone 100 provided by the present invention will have both the sound effect of the conventional earphone and the real and natural listening effect of the human being in a normal environment.
  • the left earpiece 10 is further provided with a first duct 13 and a second duct 14 , and the first duct 13 is disposed on the main left speaker 11 and the left earpiece.
  • the audio signal emitted by the main left horn 11 is led to the outside of the left earpiece 10 for transmission to the ear of the human body.
  • the second duct 14 is disposed between the secondary left horn 12 and the outer surface 15 of the left earpiece 10 for guiding an audio signal emitted by the secondary left horn 12 to the outside of the left earpiece 10, To be delivered to the ear of the human body.
  • the length L2 of the second duct 14 is N times the length L1 of the first duct 13, and the N is a number greater than or equal to 1.
  • the main left horn 11 and the secondary left horn 12 are staggered in the cavity of the left earpiece 10 to achieve a true listening effect.
  • the right earpiece 20 is further provided with a third duct 23 and a fourth duct 24.
  • the third duct 23 is disposed between the main right horn 21 and the outer surface 25 of the right earpiece 20 for guiding the audio signal emitted by the main right horn 21 to the outside of the right earpiece 20, To be delivered to the ear of the human body.
  • the fourth conduit 24 is disposed between the secondary right horn 22 and the outer surface 25 of the right earpiece 20 for guiding the audio signal emitted by the secondary right horn 22 to the outside of the right earpiece 20, To be delivered to the ear of the human body.
  • the length L4 of the fourth duct 24 is N times the length L3 of the third duct 23, and the N is a number greater than or equal to 1.
  • the main right horn 21 and the secondary right horn 22 are staggered in the cavity of the right earpiece 20 to achieve a true listening effect.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Headphones And Earphones (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

本实用新型公开一种耳机,其包括左听筒、右听筒及音源输入端。左听筒内设有主左喇叭及次左喇叭,右听筒内设有主右喇叭及次右喇叭。音源输入端包括左声道音频输入端及右声道音频输入端。左声道音频输入端通过第三分频器与次右喇叭电性连接,右声道音频输入端通过第四分频器与次左喇叭电性连接。所述第三分频器用于将左声道音频输入端输入的音频信号经过分频处理后传送到次右喇叭,所述第四分频器用于将右声道音频输入端输入的音频信号经过分频处理后传送到次左喇叭。本实用新型提供的耳机,能使用者能体验到前所未有的真实、自然环境听音感受。

Description

一种耳机 技术领域
本实用新型涉及一种耳机。
背景技术
一般的立体声耳机产品,由于还音原理与人类处身现实环境或自然的听音情况完全不同,因此使用者从耳机内听到的声音,不管是简单的语音或复杂的音乐,都会出现称为“头中效应”、“超级立体声”等现象,从而会令耳机使用者产生音乐内容异常、音乐内容集中在头顶等不自然的感觉。这是由于耳机的还音原理造成的。
传统的立体声耳机产品是左、右声道独立分开,并且各自处于耳朵(离头部正中到耳朵约90度)的两侧。当使用者佩戴后,一般的立体声音频录音档案的左声道和右声道信号被完全独立分开,即,当左边耳机发声时,只有左边耳朵能听到声音,而右边耳朵则完全静音,相反亦然。这样会令使用者听到一个声场异常广阔、定位奇怪的音乐效果。最常见的情况,莫过于本来应该在面前一定范围内的声音,跑到了头顶和极左极右耳机两侧。这种奇怪的声音分布,人类在真实环境是难以接触到的,只有使用耳机听音时才会感受到。而部分使用者更将因为长期或经常听到这种效果,而感到头晕或不适,从而对耳机的听音效果产生抗拒。
一个听力正常的人在现实环境听音,由于天生左右耳朵同时在工作,因此无论声音从哪发出,实际上人类左右耳朵都能同时听到,这也是人类天生的听 音习惯及判断声音的方向及定位的感受。比如声音从左边发出,人类的右边耳朵其实也在同时接收,区别在于声音从左边传输到右边耳朵时,被不同的距离、人类头部、面部器官、头发及上半身等影响下,所产生的声音传输延时及衰减,此种现象以下简称为“头部传输效应”。
由于一般耳机并不能产生上述的条件,因此耳机与人类在现实环境听喇叭有着本质上的区别,从而令耳机的声音效果变得非常不自然、不真实!
实用新型内容
本实用新型的目的在于提供一种耳机,所述耳机还原的声音效果更加接近自然和真实,使使用者的左右耳朵都能听到类似于身处真实环境的听音效果。
为解决上述技术问题,本实用新型提供如下技术方案:
一种耳机包括左听筒、右听筒、音源输入端、第一分频器及第二分频器。所述左听筒内设有主左喇叭,所述右听筒内设有主右喇叭。所述音源输入端包括左声道音频输入端及右声道音频输入端,所述左声道音频输入端通过所述第一分频器与所述主左喇叭电性连接,所述右声道音频输入端通过所述第二分频器与所述主右喇叭电性连接。所述耳机还包括次左喇叭、次右喇叭、第三分频器及第四分频器。所述次左喇叭设于所述左听筒内,所述次右喇叭设于所述右听筒内。所述第三分频器与所述次右喇叭电性连接,所述第三分频器用于将所述左声道音频输入端输入的音频信号经过分频处理后传送到所述次右喇叭。所述第四分频器与所述次左喇叭电性连接,所述第四分频器用于将所述右声道音频输入端输入的音频信号经过分频处理后传送到所述次左喇叭。
其中,所述耳机还包括左开关及右开关,所述左开关电性连接于所述左声道音频输入端与所述第三分频器之间,用于控制所述次右喇叭的开启,所述右开关电性连接于所述右声道音频输入端与所述第四分频器之间,用于控制所述次左喇叭的开启。
其中,所述耳机还包括双声道切换器,所述双声道切换器电性连接于所述左开关及所述右开关,用于同时控制所述左开关及所述右开关的开启。
其中,所述左听筒内还设有第一导管及第二导管,所述第一导管设于所述主左喇叭与所述左听筒的外表面之间,用于将所述主左喇叭发出的音频信号导出至所述左听筒的外部,所述第二导管设于所述次左喇叭与所述左听筒的外表面之间,用于将所述次左喇叭发出的音频信号导出至所述左听筒的外部,所述第二导管的长度为所述第一导管的长度的N倍,所述N为大于或等于1的数。
其中,所述右听筒内还设有第三导管及第四导管,所述第三导管设于所述主右喇叭与所述右听筒的外表面之间,用于将所述主右喇叭发出的音频信号导出至所述右听筒的外部,所述第四导管设于所述次右喇叭与所述右听筒的外表面之间,用于将所述次右喇叭发出的音频信号导出至所述右听筒的外部,所述第四导管的长度为所述第三导管的长度的N倍,所述N为大于或等于1的数。
其中,所述耳机还包括左音频线及右音频线,所述第一分频器及所述第三分频器设于所述左音频线内,所述第二分频器及所述第四分频器设于所述右音频线内。
由此可见,本实用新型提供的耳机,通过在耳机的左听筒内增加次左喇叭,在耳机的右听筒内增加次右喇叭,所述次左喇叭及所述次右喇叭用于还原经过分频器处理后的音频信号。当使用者同时将所述左右听筒佩戴在耳朵上时,当 播放一般声音档案时,因为左右两边耳机内,都增加了经过分频器处理后的声音,模拟了人类在正常环境的听音特性,从而使使用者能体验到前所未有的真实、自然环境听音感受,所述声音会像自然声音一样出现在面前,而不是人的头顶。左右范围的声音,不再异常的宽阔、夸张,而是像在面前一定范围内的自然感觉。
附图说明
为了更清楚地说明本实用新型的技术方案,下面将对实施方式中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用新型的一些实施方式,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,还可以如这些附图获得其他的附图。
图1是本实用新型具体实施方式提供的耳机的示意图。
图2是图1中耳机的内部电路模块连接示意图。
图3是图1中耳机的左听筒的内部结构示意图。
图4是图1中耳机的右听筒的内部结构示意图。
具体实施方式
下面将结合本实用新型实施方式中的附图,对本实用新型实施方式中的技术方案进行清楚、完整地描述。
请同时参照图1至图4,本实用新型具体实施方式提供的耳机100包括左听筒10、右听筒20、音源输入端50、第一分频器71、第二分频器72、第三分频器73及第四分频器74。
本实施方式中,所述耳机100为入耳式耳机。在其它的实施方式中,所述耳机100也可以为头载式耳机。
所述左听筒10内设有主左喇叭11及次左喇叭12,所述右听筒20内设有主右喇叭21及次右喇叭22。
所述音源输入端50包括左声道音频输入端51及右声道音频输入端52。所述左声道音频输入端51通过所述第一分频器71与所述主左喇叭11电性连接。所述右声道音频输入端52通过所述第二分频器72与所述主右喇叭21电性连接。所述第三分频器73与所述次右喇叭22电性连接,所述第三分频器73用于将所述左声道音频输入端51输入的音频信号经过分频处理后传送到所述次右喇叭22。所述第四分频器74与所述次左喇叭12电性连接,所述第四分频器74用于将所述右声道音频输入端52输入的音频信号经过分频处理后传送到所述次左喇叭12。
本实施方式中,所述耳机100还包括左音频线30及右音频线40,所述第一分频器71及所述第三分频器73设于所述左音频线30内。所述第二分频器72及所述第四分频器74设于所述右音频线40内。
在其它实施方式中,所述第一分频器71及所述第三分频器73也可以设于所述左听筒10的腔体内,所述第二分频器72及所述第四分频器74也可以设于所述右听筒20的腔体内。
由此可见,本实用新型提供的耳机100,通过在耳机100的左听筒10内增加次左喇叭12,在耳机100的右听筒20内增加次右喇叭22,所述次右喇叭22及所述次左喇叭12用于分别还原经过所述第三及第四分频器73、74处理后的音频信号。当使用者同时将所述左右听筒10、20佩戴在耳朵上时,当播放一般声音档案时,因为在所述左听筒10及所述右听筒20内,除了主左喇叭11及主 右喇叭21发出的声音外,还增加了经过所述第三及第四分频器73、74处理后的声音,所述声音的频率不同于所述主左喇叭11及所述主右喇叭21发出的声音的频率。也就是说,在所述左听筒10内可以听到来自右声道音频输入端52输入的音频信号,在所述右听筒20内可以听到来自左声道音频输入端51输入的音频信号,使得所述耳机100的左右听筒20内均模拟了人类在正常环境的听音特性,从而使使用者能体验到前所未有的真实、自然环境听音感受。因此,当使用者使用所述耳机100时,所述声音会像自然声音一样出现在面前,而不是人的头顶,左右范围的声音,不再异常的宽阔、夸张,而是像在面前一定范围内的自然感觉。
进一步地,所述耳机100还包括左开关61、右开关62及双声道切换器60。所述左开关61电性连接于所述左声道音频输入端51与所述第三分频器73之间,用于控制所述次右喇叭22的开启。所述右开关62电性连接于所述右声道音频输入端52与所述第四分频器74之间,用于控制所述次左喇叭12的开启。所述双声道切换器60电性连接于所述左开关61及所述右开关62,用于同时控制所述左开关61及所述右开关62的开启。本实施方式中,所述双声道切换器60设于所述耳机100的线材上,以方便使用者操作。
所述左开关61、右开关62及双声道切换器60的设置,使得所述耳机100具有音效切换功能。当使用者不想使用所述耳机100的次右喇叭22及次左喇叭12的功能时,使用者可以关闭所述双声道切换器60,以使用传统耳机的声音效果。因此,本实用新型提供的耳机100,将同时拥有传统耳机的声音效果和人类在正常环境的真实、自然的听音效果。
请同时参照图3及图4,具体地,所述左听筒10内还设有第一导管13及第二导管14,所述第一导管13设于所述主左喇叭11与所述左听筒10的外表面15之间,用于将所述主左喇叭11发出的音频信号导出至所述左听筒10的外部,以传送到人体的耳朵。所述第二导管14设于所述次左喇叭12与所述左听筒10的外表面15之间,用于将所述次左喇叭12发出的音频信号导出至所述左听筒10的外部,以传送到人体的耳朵。所述第二导管14的长度L2为所述第一导管13的长度L1的N倍,所述N为大于或等于1的数。换而言之,所述主左喇叭11与所述次左喇叭12在所述左听筒10的腔体内错开设置,以达到真实的听音效果。
同样的,所述右听筒20内还设有第三导管23及第四导管24。所述第三导管23设于所述主右喇叭21与所述右听筒20的外表面25之间,用于将所述主右喇叭21发出的音频信号导出至所述右听筒20的外部,以传送到人体的耳朵。所述第四导管24设于所述次右喇叭22与所述右听筒20的外表面25之间,用于将所述次右喇叭22发出的音频信号导出至所述右听筒20的外部,以传送到人体的耳朵。所述第四导管24的长度L4为所述第三导管23的长度L3的N倍,所述N为大于或等于1的数。所述主右喇叭21与所述次右喇叭22在所述右听筒20的腔体内错开设置,以达到真实的听音效果。
以上所述是本实用新型的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本实用新型原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本实用新型的保护范围。

Claims (6)

  1. 一种耳机,包括左听筒、右听筒、音源输入端、第一分频器及第二分频器,所述左听筒内设有主左喇叭,所述右听筒内设有主右喇叭,所述音源输入端包括左声道音频输入端及右声道音频输入端,所述左声道音频输入端通过所述第一分频器与所述主左喇叭电性连接,所述右声道音频输入端通过所述第二分频器与所述主右喇叭电性连接,其特征在于,所述耳机还包括次左喇叭、次右喇叭、第三分频器及第四分频器,所述次左喇叭设于所述左听筒内,所述次右喇叭设于所述右听筒内,所述第三分频器与所述次右喇叭电性连接,所述第三分频器用于将所述左声道音频输入端输入的音频信号经过分频处理后传送到所述次右喇叭,所述第四分频器与所述次左喇叭电性连接,所述第四分频器用于将所述右声道音频输入端输入的音频信号经过分频处理后传送到所述次左喇叭。
  2. 如权利要求1所述的耳机,其特征在于,所述耳机还包括左开关及右开关,所述左开关电性连接于所述左声道音频输入端与所述第三分频器之间,用于控制所述次右喇叭的开启,所述右开关电性连接于所述右声道音频输入端与所述第四分频器之间,用于控制所述次左喇叭的开启。
  3. 如权利要求2所述的耳机,其特征在于,所述耳机还包括双声道切换器,所述双声道切换器电性连接于所述左开关及所述右开关,用于同时控制所述左开关及所述右开关的开启。
  4. 如权利要求1所述的耳机,其特征在于,所述左听筒内还设有第一导管及第二导管,所述第一导管设于所述主左喇叭与所述左听筒的外表面之间,用于将所述主左喇叭发出的音频信号导出至所述左听筒的外部,所述第二导管设于所述次左喇叭与所述左听筒的外表面之间,用于将所述次左喇叭发出的音频 信号导出至所述左听筒的外部,所述第二导管的长度为所述第一导管的长度的N倍,所述N为大于或等于1的数。
  5. 如权利要求1所述的耳机,其特征在于,所述右听筒内还设有第三导管及第四导管,所述第三导管设于所述主右喇叭与所述右听筒的外表面之间,用于将所述主右喇叭发出的音频信号导出至所述右听筒的外部,所述第四导管设于所述次右喇叭与所述右听筒的外表面之间,用于将所述次右喇叭发出的音频信号导出至所述右听筒的外部,所述第四导管的长度为所述第三导管的长度的N倍,所述N为大于或等于1的数
  6. 如权利要求1所述的耳机,其特征在于,所述耳机还包括左音频线及右音频线,所述第一分频器及所述第三分频器设于所述左音频线内,所述第二分频器及所述第四分频器设于所述右音频线内。
PCT/CN2015/082478 2014-07-25 2015-06-26 一种耳机 WO2016011873A1 (zh)

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CN106303784A (zh) * 2016-09-14 2017-01-04 联想(北京)有限公司 一种耳机
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