CN106101906A - A kind of digital earphone - Google Patents

A kind of digital earphone Download PDF

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Publication number
CN106101906A
CN106101906A CN201610681658.2A CN201610681658A CN106101906A CN 106101906 A CN106101906 A CN 106101906A CN 201610681658 A CN201610681658 A CN 201610681658A CN 106101906 A CN106101906 A CN 106101906A
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CN
China
Prior art keywords
module
digital
earphone
digital earphone
temperature detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610681658.2A
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Chinese (zh)
Inventor
曹新放
卢永江
李君龙
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.)
Goertek Inc
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Goertek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to CN201610681658.2A priority Critical patent/CN106101906A/en
Publication of CN106101906A publication Critical patent/CN106101906A/en
Priority to PCT/CN2016/110994 priority patent/WO2018032675A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H04R1/1041Mechanical or electronic switches, or control elements
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
  • Telephone Function (AREA)

Abstract

The invention discloses a kind of digital earphone, including temperature detecting module (U1), processing module (U2) and the on and off switch (S1) being connected on the current supply circuit of digital earphone, temperature detecting module (U1) is arranged to the Current Temperatures that detection is welded with the circuit board of this temperature detecting module (U1);Processing module (U2) is arranged to Current Temperatures and fiducial temperature be compared and control according to comparison result the state of on and off switch (S1).In such manner, it is possible to protection digital earphone, effectively prevent the earphone heating burnout that various abnormal operation causes.

Description

A kind of digital earphone
Technical field
The present invention relates to earphone field, more particularly it relates to an be provided with the digital earphone of temperature sensor.
Background technology
Existing head circuit protected mode is mainly based upon the overvoltage of the signal of telecommunication or over-current detection is protected, and works as electricity Stream exceedes setting electric current or voltage when exceed setting voltage, and earphone automatically powers off, to protect earphone.
But existing scheme utilizes overvoltage or crosses stream and carry out protecting that have the disadvantage that can only be to the electricity adding protection circuit Road is protected;If many places circuit is protected, use electronic component many, take up room big.
Due to earphone short circuit or other abnormal related elements heatings ultimately resulted in, all show electricity with the form of heat energy Lu Zhong.Therefore temperature sensor can be utilized can effectively to protect the earphone heating burnout that various abnormal operation causes.
Summary of the invention
It is an object of the present invention to provide a kind of new solution preventing earphone heating burnout.
According to the first aspect of the invention, it is provided that a kind of digital earphone, including temperature detecting module, processing module and company Being connected on the on and off switch on the current supply circuit of described digital earphone, described temperature detecting module is arranged to detection and is welded with described The Current Temperatures of the circuit board of temperature detecting module;Described processing module is arranged to enter described Current Temperatures with fiducial temperature Row comparison the state according to the comparison result described on and off switch of control.
Optionally, described digital earphone also includes that decoder module and coding module, described decoder module are arranged to right The receiver digital signal that described digital earphone receives carries out digital-to-analogue conversion process, obtains left channel signals and the R channel of analog quantity The transmission of signal correspondence is to corresponding receiver;Described coding module is arranged to that the analogue signal of mike collection is carried out modulus and turns Change process, obtain the terminal that Mike's digital signal is sent to be connected with described digital earphone.
Optionally, described digital earphone also includes that voltage transformation module, described voltage transformation module and described power supply are opened Closing and be connected in series on the current supply circuit of described digital earphone, described voltage transformation module is arranged to described digital earphone The voltage that power supply stitch provides is converted to described temperature detecting module, described processing module, described decoder module and described coding The supply voltage of module provides to corresponding module.
Optionally, described decoder module, described coding module, described temperature detecting module and described processing module are all welded It is connected on same circuit board.
Optionally, described decoder module, described coding module, described temperature detecting module and described processing module by One codec chip provides.
According to the second aspect of the invention, it is provided that a kind of digital earphone, including temperature detecting module and processing module, institute State temperature detecting module and be arranged to detect the Current Temperatures of the circuit board being welded with described temperature detecting module;Described process mould Block be arranged to described Current Temperatures is carried out format conversion processing and the Current Temperatures after format conversion processing is sent to The terminal that described digital earphone connects carries out control system of switching on or off electricity.
Optionally, described digital earphone also includes that decoder module and coding module, described decoder module are arranged to right The receiver digital signal that described digital earphone receives carries out digital-to-analogue conversion process, obtains left channel signals and the R channel of analog quantity The transmission of signal correspondence is to corresponding receiver;Described coding module is arranged to that the analogue signal of mike collection is carried out modulus and turns Change process, obtain the terminal that Mike's digital signal is sent to be connected with described digital earphone.
Optionally, described digital earphone also includes that voltage transformation module, described voltage transformation module are arranged to institute The voltage of the power supply stitch offer stating digital earphone is converted to described temperature detecting module, described processing module, described decoding mould The supply voltage of block and described coding module provides to corresponding module.
Optionally, described decoder module, described coding module, described temperature detecting module and described processing module are all welded It is connected on same circuit board.
Optionally, described decoder module, described coding module, described temperature detecting module and described processing module by One codec chip provides.
It was found by the inventors of the present invention that in the prior art, there is head circuit protected mode can only be to adding protection electricity The circuit on road carries out big problem of protecting and take up room.In embodiments of the invention, it is welded with temperature detection mould by detection The temperature of the circuit board of block, compares this temperature with fiducial temperature, carries out the control system of switching on or off electricity of earphone according to comparison result, Earphone can be protected, effectively prevent the earphone heating burnout that various abnormal operation causes.Therefore, the technology that the present invention is to be realized That task or the those skilled in the art of technical problem is that to be solved never expect or it is not expected that, therefore the present invention It it is a kind of new technical scheme.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, the further feature of the present invention and Advantage will be made apparent from.
Accompanying drawing explanation
Combined in the description and the accompanying drawing of the part that constitutes description shows embodiments of the invention, and even With its explanation together for explaining the principle of the present invention.
Fig. 1 is a kind of frame principle figure implementing structure according to a kind of digital earphone of the present invention;
Fig. 2 is the another kind of frame principle figure implementing structure according to a kind of digital earphone of the present invention;
Fig. 3 is the frame principle figure of the third enforcement structure according to a kind of digital earphone of the present invention.
Description of reference numerals:
U1: temperature detecting module;U2: control module;
S1: on and off switch;U3: decoder module;
U4: coding module;U5: voltage transformation module;
J1:USB plug;The difference stitch of D+, D-:USB plug;
The power supply stitch of VCC:USB plug;VCC1, VCC2, VCC3: voltage;
MIC: mike;LE: left otaphone;
RE: auris dextra receiver;The ground pin of GND:USB plug.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that unless additionally have Body illustrates, the parts illustrated the most in these embodiments and positioned opposite, the numerical expression of step and numerical value are not intended to this The scope of invention.
Description only actually at least one exemplary embodiment is illustrative below, never as to the present invention And any restriction applied or use.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable In the case of when, described technology, method and apparatus should be considered a part for description.
It is shown here that any occurrence should be construed as merely exemplary with in all examples discussed, and not It is as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing Individual accompanying drawing is defined, then need not it is further discussed in accompanying drawing subsequently.
The circuit adding protection circuit can only be carried out to solve head circuit protected mode present in prior art Protection and the big problem that takes up room, it is provided that a kind of digital earphone, on the one hand, this digital earphone includes temperature detection mould Block U1, processing module U2 and the on and off switch S1 being connected on the current supply circuit of digital earphone, temperature detecting module U1 is set The Current Temperatures of the circuit board of temperature detecting module it is welded with for detection;Processing module U2 is arranged to this Current Temperatures and base Quasi-temperature is compared and controls the state of on and off switch S1 according to comparison result.
Above-mentioned on and off switch S1 is connected on the current supply circuit of digital earphone, when on and off switch S1 closes, and this numeral ear Machine energising, normally work, when on and off switch S1 disconnects, this digital earphone power-off, quit work.This on and off switch S1 is specially Gate-controlled switch, processing module U2 controls the on off state of this on and off switch S1.This on and off switch S1 can be by audion, metal-oxide-semiconductor Realize Deng discrete component, such as, be specifically as follows N-type audion, p-type audion, N-channel MOS pipe or P-channel metal-oxide-semiconductor Deng.
Wherein, temperature detecting module U1 can be that detection is welded with all elements on the circuit board of this temperature detecting module U1 Mean temperature, owing to all elements being welded on same circuit board with this temperature detecting module U1 are connected by copper sheet, copper Micromicro is with heat conduction, if there is short circuit or other abnormal related elements heatings ultimately resulted in, the heat of generation on this circuit board Amount will be transmitted on all positions of this circuit board by copper sheet, and therefore, temperature detecting module U1 will detect this in real time The Current Temperatures of circuit board, and Current Temperatures is sent in real time processing module U2.
Further, the temperature range of this circuit board when temperature detecting module U1 needs first test earphone normally to work, such as Can be pre-stored in processing module U2 using the maximum in this temperature range as fiducial temperature.
The Current Temperatures received is compared by processing module U2 with the fiducial temperature prestored, if Current Temperatures Less than fiducial temperature, then it is believed that each element of this circuit board is normal, therefore, output controls the control of on and off switch S1 Guan Bi Signal, such as, can be high level so that digital earphone of the present invention powers on, normally works;If Current Temperatures exceedes benchmark temperature Degree, then it is believed that there is short circuit or other abnormal related elements heatings ultimately resulted in, therefore, output control on this circuit board The control signal that on and off switch S1 processed disconnects, such as, can be low level so that digital earphone power-off of the present invention, quits work, So, it is achieved that the protection to digital earphone of the present invention, effectively prevents the earphone heating burnout that various abnormal operation causes.
Concrete, due to digital earphone of the present invention transmission is digital signal, and therefore, temperature detecting module U1 can be by one Digital temperature sensor provides.
Digital earphone of the present invention also includes decoder module U3 and coding module U4, and the signal received due to digital earphone is Receiver digital signal, and headset earpiece can only be driven by analogue signal, therefore, needs decoder module U3 to digital earphone of the present invention The receiver digital signal received carries out digital-to-analogue conversion process, obtains left channel signals and the right-channel signals of analog quantity, and by a left side Sound channel signal transmission is to left otaphone LE, by right-channel signals transmission to auris dextra receiver RE;The voice gathered due to mike MIC Signal is analogue signal, and digital earphone of the present invention is merely able to be communicated with the terminal being connected by digital signal, therefore, needs Coding module U4 carries out analog-to-digital conversion process to the analogue signal of mike collection, obtains Mike's digital signal and is sent to and this number The terminal that word earphone connects.
In one particular embodiment of the present invention, the plug of digital earphone of the present invention can be USB plug J1, wherein, USB plug J1 has ground pin GND, power supply stitch VCC and a pair difference stitch D+, D-, the voltage stitch of USB plug J1 VCC is that digital earphone of the present invention is powered, and ground pin GND is connected with the earth terminal of digital earphone of the present invention, a pair difference stitch D +, D-is used for transmitting receiver digital signal and Mike's digital signal.Wherein, USB plug J1 can be USB A type plug, mini- Any one in USB plug, micro-USB plug and Type-C plug.
Due to USB plug J1 power supply stitch VCC provide voltage be 5V, and temperature detecting module U1, processing module U2, The supply voltage of decoder module U3 and coding module U4 differs and is set to 5V, and therefore, digital earphone can also include voltage modulus of conversion Block U5, voltage transformation module U5 and on and off switch S1 are connected in series on the current supply circuit of this digital earphone, voltage transformation module The voltage VCC1 that U5 is arranged to the power supply stitch VCC of earphone provides is converted to temperature detecting module U1, processing module U2, solution Supply voltage VCC2, VCC3 of code module U3 and coding module U4 provides to corresponding module, such as, temperature detecting module U1 Supply voltage is 2.5V, and the supply voltage of processing module U2 is 1.8V, decoder module U3 and coding module U4 supply voltage are ± 3.3V, then, the 5V voltage that the power supply stitch VCC of earphone provides is converted to the supply voltage of 2.5V by voltage transformation module U5 Thering is provided to temperature detecting module U1, the supply voltage that the 5V voltage that the power supply stitch VCC of earphone provides is converted to 1.8V provides To processing module U2, the 5V voltage that the power supply stitch VCC of earphone provides is converted to ± supply voltage of 3.3V provides to decoding Module U3 and coding module U4.
For high-end digital earphone, processing module U2, decoder module U3 and coding module U4's is relatively costly, therefore, Only processing module U2, decoder module U3 and coding module U4 can be carried out temperature detection, it is to avoid it in use occurs Damaging, due to the detection of temperature detecting module U1 is to be welded with the temperature of all elements on the circuit board of this temperature detecting module U1 Degree, therefore, in one particular embodiment of the present invention, can be by temperature detecting module U1, processing module U2, decoder module U3 All it is welded on same circuit board with coding module U4.
In order to reduce circuit footprint further, in one particular embodiment of the present invention, temperature detecting module U1, Processing module U2, decoder module U3 and coding module U4 are provided by a highly integrated codec chip.
On the other hand, this digital earphone includes temperature detecting module U1 and processing module U2, temperature detecting module U1 quilt It is set to detect the Current Temperatures of the circuit board being welded with temperature detecting module U1;Processing module U2 is arranged to Current Temperatures Carry out format conversion processing and the Current Temperatures transmission after format conversion processing is carried out power on/off to the terminal being connected with earphone Control.
Wherein, temperature detecting module U1 can be that detection is welded with all elements on the circuit board of this temperature detecting module U1 Mean temperature, owing to all elements being welded on same circuit board with this temperature detecting module U1 are connected by copper sheet, copper Micromicro is with heat conduction, if there is short circuit or other abnormal related elements heatings ultimately resulted in, the heat of generation on this circuit board Amount will be transmitted on all positions of this circuit board by copper sheet, and therefore, temperature detecting module U1 will detect this in real time The Current Temperatures of circuit board, and Current Temperatures is sent in real time processing module U2.
Further, the temperature range of this circuit board when temperature detecting module U1 needs first test earphone normally to work, such as Can be using the maximum in this temperature range as fiducial temperature, wherein, this fiducial temperature can be to be pre-stored in processing mould In block U2, it is also possible to be to send to terminal when earphone is connected with terminal for the first time.
If this fiducial temperature is to be pre-stored in processing module U2, then as described in above-described embodiment, processing module The Current Temperatures received is compared by U2 with the fiducial temperature prestored, if Current Temperatures is less than fiducial temperature, Then it is believed that each element of this circuit board is normal, as such, it can be that be left intact;If Current Temperatures exceedes benchmark temperature Degree, then it is believed that there is short circuit or other abnormal related elements heatings ultimately resulted on this circuit board, therefore, to terminal Output makes the terminal control signal to this earphone power-off so that digital earphone power-off of the present invention, quit work.
Send when earphone is connected with terminal for the first time to terminal in this fiducial temperature, temperature detecting module U1 Can be, by I2C bus, Current Temperatures is sent to processing module U2, the Current Temperatures that processing module U2 receives be exactly I2C Form, if digital earphone of the present invention is carried out data transmission by USB interface, then, processing module U2 be accomplished by by The Current Temperatures of I2C form is converted to the Current Temperatures of USB format, then the Current Temperatures after format conversion processing is sent to The terminal that earphone connects carries out control system of switching on or off electricity.
Concrete, after terminal receives the Current Temperatures of e.g. USB format, this Current Temperatures is carried out with fiducial temperature Comparison, if Current Temperatures is less than fiducial temperature, then it is believed that each element of this circuit board is normal, therefore, it will control eventually End internal circuit continues to power digital earphone of the present invention so that digital earphone of the present invention normally works;If Current Temperatures surpasses Cross fiducial temperature, then it is believed that there is short circuit or other abnormal related elements heatings ultimately resulted on this circuit board, because of This, it will control terminal inner circuit and stop digital earphone of the present invention is powered so that digital earphone power-off of the present invention, stopping work Making, so, be achieved that the protection to digital earphone of the present invention, the earphone heating effectively preventing various abnormal operation from causing is burnt Ruin.
Concrete, due to digital earphone of the present invention transmission is digital signal, and therefore, temperature detecting module U1 can be by one Digital temperature sensor provides.
Digital earphone of the present invention also includes decoder module U3 and coding module U4, and the signal received due to digital earphone is Receiver digital signal, and headset earpiece can only be driven by analogue signal, therefore, needs decoder module U3 to digital earphone of the present invention The receiver digital signal received carries out digital-to-analogue conversion process, obtains the left channel signals transmission corresponding with right-channel signals of analog quantity To corresponding receiver;Owing to the voice signal of mike collection is analogue signal, and digital earphone of the present invention is merely able to by number Word signal communicates with the terminal being connected, and therefore, needs coding module U4 that the analogue signal of mike collection is carried out modulus and turns Change process, obtain the terminal that Mike's digital signal is sent to be connected with this digital earphone.
In one particular embodiment of the present invention, the plug of digital earphone of the present invention can be USB plug J1, wherein, USB plug J1 has ground pin GND, power supply stitch VCC and a pair difference stitch D+, D-, the voltage stitch of USB plug J1 VCC is that digital earphone of the present invention is powered, and ground pin GND is connected with the earth terminal of digital earphone of the present invention, a pair difference stitch D +, D-is used for transmitting receiver digital signal and Mike's digital signal.Wherein, USB plug J1 can be USB A type plug, mini- Any one in USB plug, micro-USB plug and Type-C plug.
Due to USB plug J1 power supply stitch VCC provide voltage be 5V, and temperature detecting module U1, processing module U2, The supply voltage of decoder module U3 and coding module U4 differs and is set to 5V, and therefore, digital earphone can also include voltage modulus of conversion Block U5, voltage transformation module U5 are connected on the current supply circuit of this digital earphone, and voltage transformation module U5 is arranged to earphone Power supply stitch VCC provide voltage VCC1 be converted to temperature detecting module U1, processing module U2, decoder module U3 and coding mould Supply voltage VCC2, VCC3 of block U4 provides to corresponding module, and such as, the supply voltage of temperature detecting module U1 is 2.5V, The supply voltage of processing module U2 is 1.8V, decoder module U3 and coding module U4 supply voltage are ± 3.3V, then, voltage The 5V voltage that the power supply stitch VCC of earphone provides is converted to the supply voltage of 2.5V by modular converter U5 to be provided to temperature detection mould Block U1, the supply voltage that the 5V voltage that the power supply stitch VCC of earphone provides is converted to 1.8V provides to processing module U2, by ear The 5V voltage that the power supply stitch VCC of machine provides is converted to ± and the supply voltage of 3.3V provides to decoder module U3 and coding module U4。
For high-end digital earphone, processing module U2, decoder module U3 and coding module U4's is relatively costly, therefore, Only processing module U2, decoder module U3 and coding module U4 can be carried out temperature detection, it is to avoid it in use occurs Damaging, due to the detection of temperature detecting module U1 is to be welded with the temperature of all elements on the circuit board of this temperature detecting module U1 Degree, therefore, in one particular embodiment of the present invention, can be by temperature detecting module U1, processing module U2, decoder module U3 All it is welded on same circuit board with coding module U4.
In order to reduce circuit footprint further, in one particular embodiment of the present invention, temperature detecting module U1, Processing module U2, decoder module U3 and coding module U4 are provided by a highly integrated codec chip.
Although by example, some specific embodiments of the present invention have been described in detail, but the skill of this area Art personnel are it should be understood that example above is merely to illustrate rather than in order to limit the scope of the present invention.The skill of this area Art personnel are it should be understood that can modify to above example without departing from the scope and spirit of the present invention.This Bright scope is defined by the following claims.

Claims (10)

1. a digital earphone, it is characterised in that include temperature detecting module (U1), processing module (U2) and be connected to described number On and off switch (S1) on the current supply circuit of word earphone, described temperature detecting module (U1) is arranged to detection and is welded with described temperature The Current Temperatures of the circuit board of degree detection module (U1);Described processing module (U2) is arranged to described Current Temperatures and benchmark Temperature is compared and controls the state of described on and off switch (S1) according to comparison result.
Digital earphone the most according to claim 1, it is characterised in that described digital earphone also include decoder module (U3) and Coding module (U4), the receiver digital signal that described decoder module (U3) is arranged to receive described digital earphone carries out digital-to-analogue Conversion process, obtains the left channel signals transmission corresponding with right-channel signals of analog quantity to corresponding receiver;Described coding module (U4) it is arranged to the analogue signal of mike collection is carried out analog-to-digital conversion process, obtains Mike's digital signal and be sent to and institute State the terminal that digital earphone connects.
Digital earphone the most according to claim 2, it is characterised in that described digital earphone also includes voltage transformation module (U5), described voltage transformation module (U5) and described on and off switch (S1) are connected in series in the current supply circuit of described digital earphone On, the voltage that described voltage transformation module (U5) is arranged to the power supply stitch of described digital earphone provides is converted to described temperature Degree detection module (U1), described processing module (U2), described decoder module (U3) and the supply voltage of described coding module (U4) There is provided to corresponding module.
Digital earphone the most according to claim 2, it is characterised in that described temperature detecting module (U1), described process mould Block (U2), described decoder module (U3) and described coding module (U4) are all welded on same circuit board.
Digital earphone the most according to claim 2, it is characterised in that described temperature detecting module (U1), described process mould Block (U2), described decoder module (U3) and described coding module (U4) are provided by a codec chip.
6. a digital earphone, it is characterised in that include temperature detecting module (U1) and processing module (U2), described temperature detection Module (U1) is arranged to the Current Temperatures that detection is welded with the circuit board of described temperature detecting module (U1);Described processing module (U2) it is arranged to described Current Temperatures carries out format conversion processing and is sent extremely by the Current Temperatures after format conversion processing The terminal being connected with described digital earphone carries out control system of switching on or off electricity.
Digital earphone the most according to claim 6, it is characterised in that described digital earphone also include decoder module (U3) and Coding module (U4), the receiver digital signal that described decoder module (U3) is arranged to receive described digital earphone carries out digital-to-analogue Conversion process, obtains the left channel signals transmission corresponding with right-channel signals of analog quantity to corresponding receiver;Described coding module (U4) it is arranged to the analogue signal of mike collection is carried out analog-to-digital conversion process, obtains Mike's digital signal and be sent to and institute State the terminal that digital earphone connects.
Digital earphone the most according to claim 7, it is characterised in that described digital earphone also includes voltage transformation module (U5), described voltage transformation module (U5) is arranged to be converted to described by the voltage of the power supply stitch offer of described digital earphone The power supply electricity of temperature detecting module (U1), described processing module (U2), described decoder module (U3) and described coding module (U4) Pressure provides to corresponding module.
Digital earphone the most according to claim 7, it is characterised in that described temperature detecting module (U1), described process mould Block (U2), described decoder module (U3) and described coding module (U4) are all welded on same circuit board.
Digital earphone the most according to claim 7, it is characterised in that described temperature detecting module (U1), described process mould Block (U2), described decoder module (U3) and described coding module (U4) are provided by a codec chip.
CN201610681658.2A 2016-08-16 2016-08-16 A kind of digital earphone Pending CN106101906A (en)

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CN201610681658.2A CN106101906A (en) 2016-08-16 2016-08-16 A kind of digital earphone
PCT/CN2016/110994 WO2018032675A1 (en) 2016-08-16 2016-12-20 Digital headphone

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WO2018032675A1 (en) * 2016-08-16 2018-02-22 歌尔股份有限公司 Digital headphone
CN106598103A (en) * 2016-12-19 2017-04-26 北京小米移动软件有限公司 Earphone assembly temperature control method and device
CN106598103B (en) * 2016-12-19 2019-04-26 北京小米移动软件有限公司 The temprature control method and device of headset assembly

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