CN206517562U - A kind of noise cancelling headphone of lightning joints - Google Patents

Abstract

The utility model is related to the technical field of earphone, refers in particular to a kind of noise cancelling headphone of lightning joints.It includes ear casing, earphone cord, loudspeaker and microphone, it is connected with earphone cord and lightning joints is connected with intelligent terminal, the back cavity for installing loudspeaker and the tail chamber for installing microphone are provided with ear casing, catch for isolating loudspeaker and microphone is installed between back cavity and tail chamber, the noise reduction unit for reducing the ambient noise in signal is serially connected between loudspeaker and microphone.Back cavity and tail chamber are separated and then separate loudspeaker and microphone by the catch in the utility model, it is to avoid the ambient noise that sends of loudspeaker vibrations is impacted to the effect of microphone, it also avoid the ambient noise that microphone vibrations send and the effect of loudspeaker is impacted；Noise reduction unit can realize whenever and wherever possible easily talk, it is ensured that clearly communication effect can be reached when talking with using earphone in the good voice quality of noisy environment holding and listening quality.

Description

A kind of noise cancelling headphone of lightning joints

Technical field

The utility model is related to the technical field of earphone, refers in particular to a kind of noise cancelling headphone of lightning joints.

Background technology

The raising of social informatization degree enables people to be communicated and exchanged anywhere or anytime, various communications The extensive use of equipment and technology is very easy to the life of people and improves operating efficiency.But the development of society is brought One than it is more serious the problem of be noise problem, communicated in noise circumstance, badly influence the clear of communication speech Degree and intelligibility, when noise it is high to a certain extent when, not only communication can not be carried out, and to the hearing of people and physically and mentally healthy can be produced Raw injury.Therefore, it is necessary to design a kind of noise reduction schemes to eliminate the noise in earphone call.

Utility model content

The utility model provides a kind of noise cancelling headphone of lightning joints for problem of the prior art, can be to call In signal carry out noise reduction so that can also be reached in the case that surrounding environment is noisy call and audition clearly make With.

In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that：

The utility model provide a kind of lightning joints noise cancelling headphone, including ear casing, earphone cord, loudspeaker and It is connected with microphone, the earphone cord and lightning joints is connected with intelligent terminal, installation loudspeaker is provided with the ear casing Gear for isolating loudspeaker and microphone is installed between back cavity and the tail chamber for installing microphone, back cavity and the tail chamber Piece, is serially connected with the noise reduction unit for reducing the ambient noise in signal between the loudspeaker and microphone.

Wherein, the LAM protocol-compliants for recognizing lightning joints are provided with the lightning joints to manage Circuit.

Wherein, it is provided with the earphone cord in wired control box, the wired control box and is provided with MCU and for numerical data to be believed Number analog data signal, the D/A converter module for analog data signal to be converted into digital data signal are converted into, it is described MCU is connected with LAM protocol-compliants management circuit, and the MCU is connected with the noise reduction unit.

Wherein, 3 press sections are provided with the wired control box, 3 press sections are integrally formed, and 3 press sections are respectively sound Amount increases key, music Pause key and volume down key, and the volume increases key, music Pause key and volume down key and linearly set, and institute State music Pause key positioned at the volume to increase between key and volume down key, one end of the wired control box connects with the lightning Head connection, the other end of the wired control box is connected with the ear casing.

Wherein, the noise reduction unit is noise reduction device between a language using highly integrated DSP speech processors design.

The beneficial effects of the utility model：

A kind of noise cancelling headphone for lightning joints that the utility model is provided, catch back cavity and tail chamber are separated and then Loudspeaker and microphone are separated, it is to avoid the ambient noise that loudspeaker vibrations are sent is impacted to the effect of microphone, is also avoided The ambient noise that microphone vibrations are sent is impacted to the effect of loudspeaker；The noise reduction unit can change in noisy environment The precision of kind voice command, the good voice quality of holding and listening quality, realize whenever and wherever possible easily talk, either in vapour The occasions such as in-car, subway, curbside, airport, Internet bar, dining room or bar can reach clearly when can ensure to talk with using earphone Communication effect.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the noise cancelling headphone of lightning joints of the present utility model.

Fig. 2 is the internal structure schematic diagram of ear casing of the present utility model.

Fig. 3 is the circuit diagram that LAM protocol-compliants of the present utility model manage circuit.

Fig. 4 is the circuit diagram of D/A converter module of the present utility model.

Fig. 5 is MCU of the present utility model circuit diagram.

Include in references of the Fig. 1 into Fig. 5：

1-ear casing, 2-earphone cord, 3-loudspeaker

4-microphone, 5-back cavity, 6-tail chamber

7-catch, 8-lightning, 9-wired control box of joint

10-volume increases key 11-music, 12-volume down key of Pause key.

Embodiment

For the ease of the understanding of those skilled in the art, further is made to the utility model with reference to embodiment and accompanying drawing Explanation, the content that embodiment is referred to not to it is of the present utility model limit.The utility model is entered below in conjunction with accompanying drawing 1-5 The detailed description of row.

A kind of noise cancelling headphone for lightning joints 8 that the utility model is provided, including ear casing 1, earphone cord 2, loudspeaker 3 and microphone 4, it is connected with the earphone cord 2 and lightning joints 8 is connected with intelligent terminal, is set in the ear casing 1 There are the back cavity 5 for installing loudspeaker 3 and the tail chamber 6 for installing microphone 4, be provided between the back cavity 5 and tail chamber 6 for isolating loudspeaker 3 and the catch 7 of microphone 4, the noise reduction for reducing the ambient noise in signal is serially connected between the loudspeaker 3 and microphone 4 Unit.Specifically, such as Fig. 2, back cavity 5 and tail chamber 6 are separated and then separate loudspeaker 3 and microphone 4 by the catch 7, it is to avoid Loudspeaker 3 shake the ambient noise sent and the effect of microphone 4 are impacted, and it also avoid microphone 4 and shake the environment sent Noise is impacted to the effect of loudspeaker 3；The noise reduction unit can noisy enhancement of environment voice command precision, keep Good voice quality and listening quality, realize whenever and wherever possible easily talk, either in automobile, subway, curbside, airport, The occasions such as Internet bar, dining room or bar can reach clearly communication effect when can ensure to talk with using earphone.Specifically, institute State the through hole for being provided with catch 7 and being easy to lead.

Set on a kind of noise cancelling headphone for lightning joints 8 that the utility model is provided, the lightning joints 8 Have for recognizing that the LAM protocol-compliants of lightning joints 8 manage circuit.Specifically, the LAM protocol-compliants management circuit Realize the compatibility that lightning joints 8 are connected with intelligent terminal, it is ensured that the transmission of data, and then realize that earphone is listened music, led to Words, the function of recording；Specifically, after the lightning joints 8 are connected with intelligent terminal, intelligent terminal can be LAM associations The compatible management circuit of view and earphone provide voltage.

Line traffic control is installed on a kind of noise cancelling headphone for lightning joints 8 that the utility model is provided, the earphone cord 2 MCU is provided with box 9, the wired control box 9 and for digital data signal to be converted into analog data signal, for will simulate number It is believed that number being converted into the D/A converter module of digital data signal, the MCU is connected with LAM protocol-compliants management circuit, The MCU is connected with the noise reduction unit.Specifically, after the lightning joints 8 are connected with intelligent terminal, intelligence is eventually End can power for LAM protocol-compliants management circuit, D/A converter module, MCU and noise reduction unit, realize its function；Specifically Ground, the D/A converter module can be realized is converted into analog data signal, for analogue data to be believed by digital data signal Number digital data signal is converted into, realizes that earphone listens music, call, sound-recording function；Specifically, the MCU can turn with digital-to-analogue Mold changing block carries out data communication and communicated by it with intelligent terminal, is adjusted in real time.Specifically, the MCU can be controlled Sample rate, sampling resolution, can carry out volume adjusting, EQ regulations and the setting of noise reduction parameters to intelligent terminal, and this is existing Technology.

A kind of noise cancelling headphone for lightning joints 8 that the utility model is provided, be provided with the wired control box 93 by Splenium, 3 press sections are integrally formed, and 3 press sections are respectively that volume increases key 10, music Pause key 11 and volume down key 12, institute State volume and increase the linearly setting of key 10, music Pause key 11 and volume down key 12, and the music Pause key 11 is located at the sound Amount increases between key 10 and volume down key 12, and one end of the wired control box 9 is connected with the lightning joints 8, the wired control box 9 other end is connected with the ear casing 1.Specifically, the MCU is connected with D/A converter module, when pressing wired control box 9 During button, MCU reads and pushes button corresponding pulse control signal, parses pulse control signal instruction and by MCU's Communication protocol circuits notify mobile phone to carry out corresponding operation to realize mobile phone volume increase and decrease, music pause and start；Specifically Ground, if being provided with talkthrough key and call hang-ups key in wired control box 9, when pressing corresponding button, main control module analysis Corresponding pulse control signal, and notify mobile phone to carry out talkthrough or call hang-ups by MCU communication protocol circuits Operation.

A kind of noise cancelling headphone for lightning joints 8 that the utility model is provided, the noise reduction unit is to be a using high Noise reduction device between the language of the integrated DSP speech processors design of degree.Specifically, the utility model utilizes highly integrated DSP languages Sound processor design language between noise reduction device realize decrease of noise functions, can noisy enhancement of environment voice command precision, protect Hold good speech quality.

It is described above, only it is the utility model preferred embodiment, not makees any formal to the utility model Limitation, although the utility model is disclosed as above with preferred embodiment, but is not limited to the utility model, any to be familiar with sheet Technical professional, is not departing from the range of technical solutions of the utility model, is made when using the technology contents of the disclosure above A little change or the equivalent embodiment for being modified to equivalent variations, as long as being without departing from technical solutions of the utility model content, foundation The utility model technology refers to any simple modification, equivalent variations and the modification made to above example, belongs to this practicality In the range of new technique scheme.

Claims (5)

1. a kind of noise cancelling headphone of lightning joints, it is characterised in that：Including ear casing, earphone cord, loudspeaker and microphone, It is connected with the earphone cord and lightning joints is connected with intelligent terminal, is provided with the ear casing after installation loudspeaker Catch for isolating loudspeaker and microphone is installed between chamber and the tail chamber for installing microphone, back cavity and the tail chamber, it is described The noise reduction unit for reducing the ambient noise in signal is serially connected between loudspeaker and microphone.

2. a kind of noise cancelling headphone of lightning joints according to claim 1, it is characterised in that：The lightning The LAM protocol-compliants for recognizing lightning joints are provided with joint and manage circuit.

3. a kind of noise cancelling headphone of lightning joints according to claim 2, it is characterised in that：On the earphone cord It is provided with wired control box, the wired control box and is provided with MCU and for digital data signal to be converted into analog data signal, is used for Analog data signal is converted into the D/A converter module of digital data signal, the MCU manages electricity with the LAM protocol-compliants Road is connected, and the MCU is connected with the noise reduction unit.

4. a kind of noise cancelling headphone of lightning joints according to claim 3, it is characterised in that：On the wired control box 3 press sections are provided with, 3 press sections are integrally formed, 3 press sections are respectively that volume increases key, music Pause key and volume down Key, the volume increases key, music Pause key and volume down key and linearly set, and the music Pause key increases positioned at the volume Between key and volume down key, one end of the wired control box is connected with the lightning joints, the other end of the wired control box with The ear casing connection.

5. a kind of noise cancelling headphone of lightning joints according to claim 1, it is characterised in that：The noise reduction unit For noise reduction device between a language using highly integrated DSP speech processors design.