CN203968327U - A kind of exempt from extract carry out low coverage dialogue earphone - Google Patents

A kind of exempt from extract carry out low coverage dialogue earphone Download PDF

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Publication number
CN203968327U
CN203968327U CN201420361776.1U CN201420361776U CN203968327U CN 203968327 U CN203968327 U CN 203968327U CN 201420361776 U CN201420361776 U CN 201420361776U CN 203968327 U CN203968327 U CN 203968327U
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CN
China
Prior art keywords
earphone
dialogue
out low
input end
low coverage
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Expired - Fee Related
Application number
CN201420361776.1U
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Chinese (zh)
Inventor
刘纯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Rapoo Technology Co Ltd
Original Assignee
Shenzhen Zhi Wo Science And Technology Ltd
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Publication date
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Priority to CN201420361776.1U priority Critical patent/CN203968327U/en
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Publication of CN203968327U publication Critical patent/CN203968327U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of earphone that carries out low coverage dialogue of exempting to extract.This earphone comprises earphone case, sound source input end and power amplifier, also comprise full directional microphone, operational amplifier, the first analog to digital converter, filter circuit and hybrid circuit, the full output of directional microphone and the input of operational amplifier are connected, the output of operational amplifier is connected with the input of the first analog to digital converter, the output of the first analog to digital converter is connected with the input of filter circuit, the output of filter circuit is connected with the first input end of hybrid circuit, sound source input end is connected with the second input of hybrid circuit, the output of hybrid circuit is connected with the input of power amplifier.Full directional microphone is set on earphone, full directional microphone gathers earphone voice signal around, the voice signal of inputting with the source of sound of earphone after voice signal is filtered mixes by power amplifier to be exported from loudspeaker, user need not extract earphone can carry out low coverage dialogue with near people, easy to use.

Description

A kind of exempt from extract carry out low coverage dialogue earphone
Technical field
The utility model relates to earphone field, relates in particular to a kind of earphone that carries out low coverage dialogue of exempting to extract.
Background technology
Existing earphone (wheat) and earplug are after wearing, and because duct is by the impact of ear muff or earplug covering and music, user cannot hear or not hear extraneous useful voice signal, causes communication invalid; User speaks owing to hearing or not hear oneself, cannot judge volume, often can independently significantly not improve self volume, thereby affect other people; Use conventional earphone, for normally, with periphery personnel, talking, user need to win and wear earphone (wheat) or earplug frequently, brings inconvenience can to like this user's use.
Utility model content
The utility model proposes a kind of earphone that carries out low coverage dialogue of exempting to extract, it gathers voice signal by full directional microphone is set on earphone, after being mixed with the voice signal of source of sound input, voice signal inputs by earphone power amplifier, user need not extract earphone can hear extraneous voice, easy to use.
For realizing above-mentioned design, the utility model by the following technical solutions:
A kind of exempt from extract carry out low coverage dialogue earphone, comprise earphone case, sound source input end and power amplifier, also comprise and being arranged at outside described earphone case for gathering the full directional microphone of voice signal, be arranged at the operational amplifier amplifying for the voice signal that described full directional microphone is gathered in described earphone case, for the voice signal after described amplification being converted into the first analog to digital converter of the first digital signal, the hybrid circuit that the second digital signal obtaining after receiving for the filter circuit of the first digital signal outside filtering predeterminated frequency scope and by described sound source input end is mixed with described the first digital signal, the output of described full directional microphone is connected with the input of described operational amplifier, the output of described operational amplifier is connected with the input of described the first analog to digital converter, the output of described the first analog to digital converter is connected with the input of described filter circuit, the output of described filter circuit is connected with the first input end of described hybrid circuit, described sound source input end is connected with the second input of described hybrid circuit, the output of described hybrid circuit is connected with the input of described power amplifier.
Wherein, also comprise that the analoging sound signal for sound source input end is received is converted to the second analog to digital converter of the second digital signal, described sound source input end is connected with the second input of described hybrid circuit by described the second analog to digital converter.
Wherein, described hybrid circuit comprises the tuning electronic circuit that the voice signal for described sound source input end is received is decayed and the audio mixing electronic circuit that the voice signal after decay is mixed with described the first digital signal.
Wherein, described filter circuit is that predeterminated frequency is the filter circuit of 300Hz~3400Hz.
Wherein, described earphone is headphone.
Wherein, described earphone is In-Ear Headphones.
Wherein, described full directional microphone is provided with start stop switch.
The beneficial effects of the utility model are: by full directional microphone is set on earphone, gather earphone voice signal around by full directional microphone, the voice signal of inputting with the source of sound of earphone after described voice signal is filtered mixes by power amplifier to be exported from loudspeaker, user need not extract earphone can carry out low coverage dialogue with near people, easy to use.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during the utility model embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the content of the utility model embodiment and these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of block diagram of exempting to extract the earphone that carries out low coverage dialogue that the utility model embodiment provides.
Fig. 2 is a kind of another block diagram of exempting to extract the earphone that carries out low coverage dialogue that the utility model embodiment provides.
Embodiment
For the technique effect that makes the technical scheme of technical problem, employing that the utility model solves and reach clearer, below in conjunction with accompanying drawing, the technical scheme of the utility model embodiment is described in further detail, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, it is respectively that the utility model embodiment provides a kind ofly exempts to extract Headphone structure block diagram and another block diagram of carrying out low coverage dialogue.Exempting from the present embodiment extractd the earphone that carries out low coverage dialogue, and as a kind of electronic components, for user receives outside voice in the time receiving electrophonic musical simultaneously, and the reception of external voice is good, easy to operate.As shown in the figure, this earphone, comprise earphone case, sound source input end 110 and power amplifier 120, also comprise and being arranged at outside described earphone case for gathering the full directional microphone 130 of voice signal, be arranged at the operational amplifier 140 amplifying for the voice signal that described full directional microphone 130 is gathered in described earphone case, for the voice signal after described amplification being converted into the first analog to digital converter 150 of the first digital signal, the hybrid circuit 170 that the second digital signal obtaining for the filter circuit 160 of the first digital signal outside filtering predeterminated frequency scope and after described sound source input end 110 is received is mixed with described the first digital signal, the output of described full directional microphone 130 is connected with the input of described operational amplifier 140, the output of described operational amplifier 140 is connected with the input of described the first analog to digital converter 150, the output of described the first analog to digital converter 150 is connected with the input of described filter circuit 160, the output of described filter circuit 160 is connected with the first input end of described hybrid circuit 170, described sound source input end 110 is connected with the second input of described hybrid circuit 170, the output of described hybrid circuit 170 is connected with the input of described power amplifier 120.
By full directional microphone 130 is set on earphone, gather earphone voice signal around by full directional microphone 130, the voice signal of inputting with the source of sound of earphone after described voice signal is filtered mixes by power amplifier 120 to be exported from loudspeaker, user need not extract earphone can carry out low coverage dialogue with near people, easy to use, the voice signal that full directional microphone 130 gathers is analog signal, in this programme, is converted to digital signal by the first analog to digital converter 150.In the present embodiment, the voice signal that sound source input end 110 is inputted is digital signal.
Preferably, as shown in Figure 2, also comprise that the analoging sound signal for sound source input end 110 is received is converted to the second analog to digital converter 180 of the second digital signal, described sound source input end 110 is connected with the second input of described hybrid circuit 170 by described the second analog to digital converter 180.Described hybrid circuit 170 comprises the tuning electronic circuit 171 that the voice signal for described sound source input end 110 is received is decayed and the audio mixing electronic circuit 172 that the voice signal after decay is mixed with described the first digital signal.Described full directional microphone 130 is provided with start stop switch.
If what sound source input end 110 was inputted is analoging sound signal, analoging sound signal need to be converted to digital audio signal, so the second analog to digital converter 180 is set at this; Can give prominence to voice signal in order to ensure the morbid sound signal that power amplifier 120 is exported, reduce the voice signal of source of sound input, the voice signal that tuning electronic circuit 171 receives sound source input end 110 is set decays, voice signal after decay is mixed with the first digital signal, realize the clear reception to external voice.In the time there is no the object of low coverage dialogue, can disconnect full directional microphone 130 by start stop switch, avoid external disturbance.
Wherein, the filter circuit 160 that described filter circuit 160 is 300Hz~3400Hz for predeterminated frequency.
For the sound of speaking, frequency is generally 300Hz~3400Hz, the voice signal outside described this frequency range of filter circuit 160 filterings.
Preferably, described earphone is headphone.
The volume of headphone is large, can provide performance more excellent hardware device, realizes better sound collection effect.
Another kind of preferred embodiment, described earphone is In-Ear Headphones.
The volume of In-Ear Headphones is little, delicate structure, and it is convenient to place.
In addition; in this programme; concrete various circuit have had realization in the prior art; and partial circuit has been integrated into a functional chip; an or circuit realization that function element also can consist of multiple electronic original parts; for example hybrid circuit 170 function has been integrated in chip piece; and the function of operational amplifier 140 also can realize by multiple combination mode by several base electronic original papers; in this programme, concrete circuit is not protected, also do not repeated at this.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.

Claims (7)

1. exempt to extract the earphone that carries out low coverage dialogue for one kind, comprise earphone case, sound source input end and power amplifier, it is characterized in that, also comprise and being arranged at outside described earphone case for gathering the full directional microphone of voice signal, be arranged at the operational amplifier amplifying for the voice signal that described full directional microphone is gathered in described earphone case, for the voice signal after amplifying being converted into the first analog to digital converter of the first digital signal, the second digital signal obtaining and the hybrid circuit mixing by described first digital signal of described filter circuit after receiving for the filter circuit of the first digital signal outside filtering predeterminated frequency scope and by described sound source input end, the output of described full directional microphone is connected with the input of described operational amplifier, the output of described operational amplifier is connected with the input of described the first analog to digital converter, the output of described the first analog to digital converter is connected with the input of described filter circuit, the output of described filter circuit is connected with the first input end of described hybrid circuit, described sound source input end is connected with the second input of described hybrid circuit, the output of described hybrid circuit is connected with the input of described power amplifier.
2. a kind of earphone that carries out low coverage dialogue of exempting to extract according to claim 1, it is characterized in that, also comprise that the analoging sound signal for sound source input end is received is converted to the second analog to digital converter of the second digital signal, described sound source input end is connected with the second input of described hybrid circuit by described the second analog to digital converter.
3. a kind of earphone that carries out low coverage dialogue of exempting to extract according to claim 1, it is characterized in that, described hybrid circuit comprises the tuning electronic circuit that the voice signal for described sound source input end is received is decayed and the audio mixing electronic circuit that the voice signal after decay is mixed with described the first digital signal.
4. a kind of exempting from according to claim 1 extractd the earphone that carries out low coverage dialogue, it is characterized in that, described filter circuit is that predeterminated frequency is the filter circuit of 300Hz~3400Hz.
5. a kind of exempting from according to claim 1 extractd the earphone that carries out low coverage dialogue, it is characterized in that, described earphone is headphone.
6. a kind of exempting from according to claim 1 extractd the earphone that carries out low coverage dialogue, it is characterized in that, described earphone is In-Ear Headphones.
7. a kind of exempting from according to claim 1 extractd the earphone that carries out low coverage dialogue, it is characterized in that, described full directional microphone is provided with start stop switch.
CN201420361776.1U 2014-07-01 2014-07-01 A kind of exempt from extract carry out low coverage dialogue earphone Expired - Fee Related CN203968327U (en)

Priority Applications (1)

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CN201420361776.1U CN203968327U (en) 2014-07-01 2014-07-01 A kind of exempt from extract carry out low coverage dialogue earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420361776.1U CN203968327U (en) 2014-07-01 2014-07-01 A kind of exempt from extract carry out low coverage dialogue earphone

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CN203968327U true CN203968327U (en) 2014-11-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245990A (en) * 2015-10-26 2016-01-13 无锡智感星际科技有限公司 External audio source import system based on closed headset
CN105554664A (en) * 2015-12-22 2016-05-04 王晓晖 Headset based sound processing method and apparatus, and headset
CN108462914A (en) * 2018-04-18 2018-08-28 深圳市睿冠科技有限公司 A method of promoting earphone experience
CN109451390A (en) * 2018-12-25 2019-03-08 歌尔科技有限公司 A kind of TWS earphone and its control method, device, equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245990A (en) * 2015-10-26 2016-01-13 无锡智感星际科技有限公司 External audio source import system based on closed headset
CN105554664A (en) * 2015-12-22 2016-05-04 王晓晖 Headset based sound processing method and apparatus, and headset
CN108462914A (en) * 2018-04-18 2018-08-28 深圳市睿冠科技有限公司 A method of promoting earphone experience
CN109451390A (en) * 2018-12-25 2019-03-08 歌尔科技有限公司 A kind of TWS earphone and its control method, device, equipment

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170516

Address after: 518122 Guangdong province Shenzhen City Pingshan Kengzi Street Fairview Road No. 22

Patentee after: Shenzhen Rapoo Technology Co., Ltd.

Address before: 518052 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation area before Bay Street Comprehensive Office Road Lei Yue Mun No.1 of Qianhai Shenzhen Hong Kong Cooperation Area Management Bureau A building 201 room

Patentee before: Shenzhen Zhi Wo Science and Technology Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141126

Termination date: 20170701