CN105100339B - A kind of terminal for being used to converse - Google Patents
A kind of terminal for being used to converse Download PDFInfo
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- CN105100339B CN105100339B CN201510364984.6A CN201510364984A CN105100339B CN 105100339 B CN105100339 B CN 105100339B CN 201510364984 A CN201510364984 A CN 201510364984A CN 105100339 B CN105100339 B CN 105100339B
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Abstract
The disclosure is directed to a kind of terminal for being used to converse, belong to electronic technology field.The terminal includes microphone, Signal Processing Element, analog to digital conversion means and processor, and the microphone includes shell, the first sound detection and second sound detection part, wherein:First sound detection and the second sound detection part are respectively arranged in the first cavity and the second cavity mutually isolated in the shell;Casing part corresponding to first cavity is provided with through hole, and second cavity has enclosed construction;Two inputs of the Signal Processing Element are electrically connected with first sound detection and the output end of the second sound detection part respectively, the output end of the Signal Processing Element is electrically connected with the analog to digital conversion means, and the analog to digital conversion means is electrically connected with the processor.Using the disclosure, the thickness that will not increase terminal while the interference of electromagnetic interference signal can reduced.
Description
Technical field
The disclosure is directed to electronic technology field, especially with respect to a kind of terminal for being used to converse.
Background technology
For user when using mobile phone, call microphone is constantly subjected to TDD, and (Time Division Duplexing, time-division are double
Work) noise interference, influence call voice quality.
The reason for producing TDD noises has:Conduction Interference and radiation interference, effectively eliminate at present dry due to conducting
TDD noises caused by disturbing, and eliminate the method for TDD noises caused by radiation interference and be often:Microphone in mobile phone
Outside increases a screening cage, microphone is enclosed in screening cage, and screening cage is grounded.
During the disclosure is realized, inventor has found problems with least be present:
Based on the method for above-mentioned elimination TDD noises caused by radiation interference, in order to obtain preferable shield effectiveness, screen
Covering has a certain distance between cage and microphone, so as to cause the thickness of product to increase.
The content of the invention
In order to overcome problem present in correlation technique, present disclose provides a kind of terminal for being used to converse.The technology
Scheme is as follows:
According to the first aspect of the embodiment of the present disclosure, there is provided it is a kind of be used for converse terminal, the terminal include microphone,
Signal Processing Element, analog to digital conversion means and processor, the microphone include shell, the first sound detection and the rising tone
Sound detection part, wherein:
First sound detection and the second sound detection part be respectively arranged in the shell mutually every
From the first cavity and the second cavity in;
Casing part corresponding to first cavity is provided with through hole, and second cavity has enclosed construction;
Two inputs of the Signal Processing Element respectively with first sound detection and the second sound
The output end of detection part is electrically connected with, and the output end of the Signal Processing Element is electrically connected with the analog to digital conversion means,
The analog to digital conversion means is electrically connected with the processor;
The Signal Processing Element, for the first analog signal for exporting first sound detection and described the
Second analog signal of two sound detections output is subtracted each other, and is obtained the 3rd analog signal, is exported to the analog to digital conversion means.
Optionally, circuit of the microphone in first cavity has phase with the circuit in second cavity
Same circuit structure and identical wire laying mode.
Optionally, circuit and described second of the output end of first sound detection to the Signal Processing Element
The output end of sound detection has identical wire laying mode to the circuit of the Signal Processing Element.
Optionally, first sound detection and the second sound detection part are identical sound detection portion
Part.
Optionally, first sound detection includes the first sound transducer and the first amplification filter part, described
Second sound detection part includes second sound sensor and the second amplification filter part.
Optionally, it is pre- to be less than first for the distance between first sound detection and the second sound detection part
If distance threshold.
Optionally, first sound detection and the second sound detection part to the antenna of the terminal away from
From equal.
Optionally, circuit and second sound detection part of first sound detection to the Signal Processing Element
The distance between circuit to the Signal Processing Element is less than the second pre-determined distance threshold value.
Optionally, the Signal Processing Element and the analog to digital conversion means to the distance of the antenna of the terminal more than the
Three pre-determined distance threshold values.
Optionally, the through hole is arranged at the one side of the antenna away from the terminal on the shell of first microphone.
Optionally, the Signal Processing Element includes subtraction circuit.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In the embodiment of the present disclosure, terminal includes microphone, Signal Processing Element, analog to digital conversion means and processor, Mike
Bellows chamber includes shell, the first sound detection and second sound detection part, wherein, the first sound detection and second sound
Detection part is respectively arranged in the first cavity and the second cavity mutually isolated in shell, casing part corresponding to the first cavity
Be provided with through hole, the second cavity has an enclosed construction, two inputs of Signal Processing Element respectively with the first sound detection portion
The output end of part and second sound detection part is electrically connected with, and the output end of Signal Processing Element electrically connects with analog to digital conversion means
Connect, analog to digital conversion means and processor are electrically connected with, Signal Processing Element, for the first sound detection is exported first
The second analog signal that analog signal exports with second sound detection part is subtracted each other, and is obtained the 3rd analog signal, is exported to modulus
Converting member.So, microphone has two cavitys, and casing part corresponding to a cavity is provided with through hole, another cavity tool
There is enclosed construction, the output signal that casing part has the sound detection in the cavity of through hole includes voice signal and electromagnetism is done
Disturb signal, the output signal of the sound detection in the cavity of casing part closing includes electromagnetic interference signal, by two sound
The output end of sound detection part is electrically connected with Signal Processing Element, is obtained two sound detections by Signal Processing Element
The analog signal taken is subtracted each other, and obtains corresponding voice signal, it is thus possible to reduce the same of the interference of electromagnetic interference signal
Shi Buhui increases the thickness of terminal.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.In the accompanying drawings:
Fig. 1 is a kind of structural representation of terminal according to an exemplary embodiment;
Fig. 2 is a kind of structural representation of terminal according to an exemplary embodiment;
Fig. 3 is a kind of structural representation of terminal according to an exemplary embodiment;
Fig. 4 is a kind of circuit diagram of subtraction circuit according to an exemplary embodiment.
Pass through above-mentioned accompanying drawing, it has been shown that the clear and definite embodiment of the disclosure, will hereinafter be described in more detail.These accompanying drawings
It is not intended to limit the scope of disclosure design by any mode with word description, but is by reference to specific embodiment
Those skilled in the art illustrate the concept of the disclosure.
Marginal data
1st, microphone 2, Signal Processing Element
3rd, analog to digital conversion means 4, processor
11st, the shell 12 of microphone, the first sound detection
13rd, second sound detection part 14, the first cavity
15th, the second cavity 16, dividing plate
111st, through hole 121, the first sound transducer
122nd, the first amplification filter part 131, second sound sensor
132nd, the second amplification filter part
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
The exemplary embodiment of the disclosure one provides a kind of terminal for being used to converse, as shown in figure 1, terminal includes microphone
1st, Signal Processing Element 2, analog to digital conversion means 3 and processor 4, as shown in Fig. 2 microphone includes shell 11, the first sound is examined
Part 12 and second sound detection part 13 are surveyed, wherein:First sound detection 12 and second sound detection part 13 are distinguished
It is arranged in the first cavity 14 and the second cavity 15 mutually isolated in shell 11, casing part corresponding to the first cavity 14 is set
Have a through hole 111, the second cavity 15 has an enclosed construction, two inputs of Signal Processing Element 2 respectively with the first sound detection
The output end of part 12 and second sound detection part 13 is electrically connected with, the output end and Analog to Digital Converter section of Signal Processing Element 2
Part 3 is electrically connected with, and analog to digital conversion means 3 is electrically connected with processor 4, Signal Processing Element 2, for by the first sound detection portion
The second analog signal that the first analog signal that part 12 exports exports with second sound detection part 13 is subtracted each other, and obtains the 3rd simulation
Signal, export to analog to digital conversion means 3.
In the embodiment of the present disclosure, terminal includes microphone, Signal Processing Element, analog to digital conversion means and processor, Mike
Bellows chamber includes shell, the first sound detection and second sound detection part, wherein, the first sound detection and second sound
Detection part is respectively arranged in the first cavity and the second cavity mutually isolated in shell, casing part corresponding to the first cavity
Be provided with through hole, the second cavity has an enclosed construction, two inputs of Signal Processing Element respectively with the first sound detection portion
The output end of part and second sound detection part is electrically connected with, and the output end of Signal Processing Element electrically connects with analog to digital conversion means
Connect, analog to digital conversion means and processor are electrically connected with, Signal Processing Element, for the first sound detection is exported first
The second analog signal that analog signal exports with second sound detection part is subtracted each other, and is obtained the 3rd analog signal, is exported to modulus
Converting member.So, microphone has two cavitys, and casing part corresponding to a cavity is provided with through hole, another cavity tool
There is enclosed construction, the output signal that casing part has the sound detection in the cavity of through hole includes voice signal and electromagnetism is done
Disturb signal, the output signal of the sound detection in the cavity of casing part closing includes electromagnetic interference signal, by two sound
The output end of sound detection part is electrically connected with Signal Processing Element, is obtained two sound detections by Signal Processing Element
The analog signal taken is subtracted each other, and obtains corresponding voice signal, it is thus possible to reduce the same of the interference of electromagnetic interference signal
Shi Buhui increases the thickness of terminal.
Disclosure another exemplary embodiment provides a kind of terminal for being used to converse, as shown in figure 1, terminal includes Mike
Wind 1, Signal Processing Element 2, analog to digital conversion means 3 and processor 4, as shown in Fig. 2 microphone includes shell 11, the first sound
Detection part 12 and second sound detection part 13, wherein:First sound detection 12 and second sound detection part 13 divide
It is not arranged in the first cavity 14 and the second cavity 15 mutually isolated in shell 11, housing department corresponding to the first cavity 14 sets up separately
Through hole 111 is equipped with, the second cavity 15 has enclosed construction, and two inputs of Signal Processing Element 2 are examined with the first sound respectively
The output end for surveying part 12 and second sound detection part 13 is electrically connected with, the output end and analog-to-digital conversion of Signal Processing Element 2
Part 3 is electrically connected with, and analog to digital conversion means 3 is electrically connected with processor 4, Signal Processing Element 2, for by the first sound detection
The second analog signal that the first analog signal that part 12 exports exports with second sound detection part 13 is subtracted each other, and obtains the 3rd mould
Intend signal, export to analog to digital conversion means 3.
In force, terminal can include microphone 1, Signal Processing Element 2, analog to digital conversion means 3 and processor 4.Wheat
Gram wind can include shell 11, the first sound detection 12 and second sound detection part 13, wherein, the bottom surface of shell 11
Part can be PCB (Printed Circuit Board, printed circuit board) plate, and the top surface of shell and side can be metals
Shell or pcb board.Shell 11 can protect internal circuit itself, can also be to electromagnetism caused by the antenna of terminal
Interference signal has certain shielding action, for example, electromagnetic interference signal can be TDD noises.Microphone 1 can include mutual
Two cavitys of isolation, the dividing plate 16 that microphone 1 is divided into two cavitys can be in the middle of the enclosure of microphone 1
Position, the i.e. space size of the first cavity 14 and the second cavity 15 can be identicals.First sound detection 12 can be set
Put in the first cavity 14, second sound detection part 13 can be arranged in the second cavity 15, the first sound detection 12
Can be symmetrical on dividing plate 16 with second sound detection part 13.Casing part corresponding to first cavity 14 can be set
It is equipped with a through hole 111, the through hole can make the first sound detection 12 detect the voice signal of user, and then, the end
The voice signal of user can be sent to other side by end by follow-up processing, realize the normal talking of both sides, the second cavity 15
Corresponding casing part is closing, so that second sound detection part 13 can shield the voice signal of user, the first sound
Detection part 12 and second sound detection part 13 can receive electromagnetic interference signal.First sound detection 12 and
Two sound detections 13 can be placed in parallel in the first microphone 1, can be by the first sound detection 12 and the rising tone
The output end of sound detection part 13 is electrically connected with Signal Processing Element 2, and the output end of Signal Processing Element 2 can turn with modulus
Change part 3 to be electrically connected with, analog to digital conversion means 3 can be electrically connected with processor 4.
When user is conversed, the first sound detection 12 can detect the voice signal of user and the electromagnetism of antenna
The mixed signal of voice signal and electromagnetic interference signal (can be referred to as the first analog signal) by interference signal, second sound detection
Part 13 can detect electromagnetic interference signal (being properly termed as the second analog signal), afterwards respectively by the first analog signal and
Two analog signals are transported to Signal Processing Element 2, and Signal Processing Element 2 receives the first analog signal and the second analog signal
Afterwards, the first analog signal is made to subtract the second analog signal, the 3rd analog signal after being subtracted each other, so as to the 3rd analog signal
Voice signal comprising user, afterwards, the 3rd analog signal can be transported to analog to digital conversion means 3, analog to digital conversion means 3 connects
After receiving the 3rd analog signal, data signal can be converted it into, afterwards, data signal is transported to processor 4, processor
After 4 receive data signal, it can be encoded, modem can be transported to afterwards, modem can
On the digital signal modulated after coding to carrier wave, will obtain modulated signal, carrier frequency can be 850MHz, 900MHz,
1800MHz and 1900MHz etc., afterwards modem modulated signal is conveyed to antenna, antenna can be carried out to modulated signal
Send.
Optionally, circuit of the microphone 1 in the first cavity 14 has identical electric with the circuit in the second cavity 15
Line structure and identical wire laying mode.
In force, the inside of the first cavity 14 and the inside of the second cavity 15 include the part of same type, part it
Between annexation be also identical, i.e., microphone 1 has identical circuit structure in the inside of above-mentioned two cavity, for example,
It is electrically connected with if the circuit structure inside the first cavity 14 is resistance with electric capacity, electric capacity is electrically connected with inductance, then the second cavity
Circuit structure inside 15 is also that resistance is electrically connected with electric capacity, and electric capacity is electrically connected with inductance.First cavity 14 and the second chamber
The connection line between part inside body 15 can be symmetrical.So, the first cavity 14 and the second chamber can be caused
The intensity of electromagnetic interference signal suffered by the inside of body 15 is close.
Optionally, the output end of the first sound detection 12 detects to the circuit of Signal Processing Element 2 with second sound
The output end of part 13 has identical wire laying mode to the circuit of Signal Processing Element 2.
In force, the output end of the first sound detection 12 can be referred to as line to the circuit of Signal Processing Element 2
Lu Yi, the output end of second sound detection part 13 are referred to as circuit two, circuit one and circuit two to the circuit of Signal Processing Element 2
Can be symmetrical.So, the intensity of circuit one and the electromagnetic interference signal suffered by circuit two can be caused to be close
's.
Optionally, the first sound detection 12 and second sound detection part 13 are identical sound detection.
In force, the first sound detection 12 and second sound detection part 13 are identical sound detections,
That is the first sound detection 12 and second sound detection part 13 have uniformity, such as the electricity of the first sound detection 12
It is electrically connected with line structure comprising resistance R and electric capacity C, electric capacity C and inductance L is electrically connected with, then in second sound detection part 13
Also resistance R, electric capacity C and inductance L are included, and is resistance R, electric capacity C and inductance L corresponding with the first sound detection 12
It is identical.First sound detection 12 and the being consistent property of second sound detection part 13, the first sound can be caused to examine
The intensity of electromagnetic interference signal suffered by survey part 12 and second sound detection part 13 is close.
Optionally, the first sound detection 12 includes the first sound transducer 121 and the first amplification filter part 122,
Second sound detection part 13 includes second sound sensor 131 and second and amplifies filter part 132.
Wherein, amplification filter part can be a global facility or by amplifier and the two portions of wave filter
The part of part composition.
In force, as shown in figure 3, the first sound detection 12 can include the first sound transducer 121 and first
Amplify filter part 122, the output end of the first sound transducer 121 can be with the output end electricity of the first amplification filter part 122
Property connection, the sound of the user that the first sound transducer 121 can be used for detecting is converted to analog signal, and by conversion
Voice signal is transported to the first amplification filter part 121, and the first amplification filter part 121 can be used for believing the simulation received
Number it is amplified and filters, output end can be included on the first amplification filter part 122, the output end can be the first sound
The output end of detection part 12, the electromagnetic interference signal and voice signal that can export the first amplification filter part 121 convey
To Signal Processing Element 2.Second sound detection part 13 can include second sound sensor 131 and second and amplify filter part
132, the output end of second sound sensor 131 can be electrically connected with the output end of the second amplification filter part 132, and second puts
Output end can be included on big filter part 132, the output end can be the output end of second sound detection part 13, can be with
The electromagnetic interference signal that second amplification filter part 132 exports is transported to Signal Processing Element 2.So, can be by user's
Sound is converted to voice signal, so as to follow-up processing.
Optionally, the distance between the first sound detection 12 and second sound detection part 13 be less than first it is default away from
From threshold value.
In force, a distance threshold (being properly termed as the first pre-determined distance threshold value) can be pre-set, is put parallel
When putting the first sound detection 12 and second sound detection part 13, can make two sound detections as close to,
It is thus possible to approach the intensity of its electromagnetic interference signal being subject to.
Optionally, the first sound detection 12 is equal with the distance of the antenna of second sound detection part 13 to terminal.
In force, when placing microphone 1, the antenna of terminal can be made in the first sound detection 12 and the rising tone
On the symmetry axis of sound detection part 13, electromagnetic interference signal be mainly terminal when sending signal, caused by the antenna of terminal, this
Sample, which is placed, can cause the strong of the first sound detection 12 and the electromagnetic interference signal suffered by second sound detection part 13
Degree is close.
Optionally, the first sound detection 12 arrives to the circuit of Signal Processing Element 2 with second sound detection part 13
The distance between circuit of Signal Processing Element 2 is less than the second pre-determined distance threshold value.
In force, a distance threshold (being properly termed as the second pre-determined distance threshold value) can be pre-set, in arrangement the
Line of one sound detection 12 to the circuit and second sound detection part 13 to Signal Processing Element 2 of Signal Processing Element 2
Lu Shi, the distance between its can be made to be less than the second pre-determined distance threshold value, i.e. two lines road is as far as possible close, can cause above-mentioned two
The intensity of electromagnetic interference signal suffered by bar circuit approaches.
Optionally, Signal Processing Element 2 and analog to digital conversion means 3 are more than the 3rd pre-determined distance to the distance of the antenna of terminal
Threshold value.
In force, a distance threshold (being properly termed as the 3rd pre-determined distance threshold value) can be pre-set, in cloth confidence
When number processing component 2 and analog to digital conversion means 3, their antennas away from terminal, so, the electricity that can be subject to them can be made
The intensity of magnetic disturbance signal is weaker, sometimes it is even possible that its from electromagnetic interference signal interference.
Optionally, through hole 111 is arranged at the one side of the antenna away from terminal on shell corresponding to the first cavity 14.
In force, the through hole 111 corresponding to the first cavity 14 in casing part can be arranged far from the antenna of terminal
One side, for example, the antenna of terminal is located at the left side of the first cavity 14, through hole 111 can be arranged on to the shell 11 of microphone 1
Right side wall on, so, can to radiate intensity into the electromagnetic interference signal in the first cavity 14 from through hole 111 it is weaker,
So as to approach the intensity of the electromagnetic interference signal inside the first cavity 14 and the second cavity 15.
Optionally, Signal Processing Element 2 includes subtraction circuit.
In force, as shown in figure 4, Signal Processing Element 2 can be subtraction circuit, the circuit can be by resistance R1、R2、
R3And R4Formed with amplifier, R can be made1=R2, R3=R4, so as to by the subtraction circuit, subtract the first analog signal
The second analog signal is gone, obtains the 3rd analog signal, if the electromagnetic interference signal in the first analog signal and the second analog signal
Intensity it is identical, then analog signal does not only include the voice signal of user to the 3rd obtained.
In the embodiment of the present disclosure, terminal includes microphone, Signal Processing Element, analog to digital conversion means and processor, Mike
Bellows chamber includes shell, the first sound detection and second sound detection part, wherein, the first sound detection and second sound
Detection part is respectively arranged in the first cavity and the second cavity mutually isolated in shell, casing part corresponding to the first cavity
Be provided with through hole, the second cavity has an enclosed construction, two inputs of Signal Processing Element respectively with the first sound detection portion
The output end of part and second sound detection part is electrically connected with, and the output end of Signal Processing Element electrically connects with analog to digital conversion means
Connect, analog to digital conversion means and processor are electrically connected with, Signal Processing Element, for the first sound detection is exported first
The second analog signal that analog signal exports with second sound detection part is subtracted each other, and is obtained the 3rd analog signal, is exported to modulus
Converting member.So, microphone has two cavitys, and casing part corresponding to a cavity is provided with through hole, another cavity tool
There is enclosed construction, the output signal that casing part has the sound detection in the cavity of through hole includes voice signal and electromagnetism is done
Disturb signal, the output signal of the sound detection in the cavity of casing part closing includes electromagnetic interference signal, by two sound
The output end of sound detection part is electrically connected with Signal Processing Element, is obtained two sound detections by Signal Processing Element
The analog signal taken is subtracted each other, and obtains corresponding voice signal, it is thus possible to reduce the same of the interference of electromagnetic interference signal
Shi Buhui increases the thickness of terminal.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice disclosure disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledges in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (7)
1. a kind of terminal for being used to converse, it is characterised in that the terminal includes microphone, Signal Processing Element, analog-to-digital conversion
Part and processor, the microphone include shell, the first sound detection and second sound detection part, wherein:
First sound detection and the second sound detection part are respectively arranged at mutually isolated in the shell
In first cavity and the second cavity;
Casing part corresponding to first cavity is provided with through hole, and second cavity has enclosed construction;
Two inputs of the Signal Processing Element detect with first sound detection and the second sound respectively
The output end of part is electrically connected with, and the output end of the Signal Processing Element is electrically connected with the analog to digital conversion means, described
Analog to digital conversion means is electrically connected with the processor;
The Signal Processing Element, for the first analog signal and the rising tone for exporting first sound detection
Second analog signal of sound detection part output is subtracted each other, and is obtained the 3rd analog signal, is exported to the analog to digital conversion means;
First sound detection includes the first sound transducer and the first amplification filter part, the second sound detection
Part includes second sound sensor and the second amplification filter part;
The distance of the antenna of first sound detection and the second sound detection part to the terminal is equal;
The Signal Processing Element is more than the 3rd pre-determined distance with the analog to digital conversion means to the distance of the antenna of the terminal
Threshold value;
The through hole is arranged at the one side of the antenna away from the terminal on the shell of first cavity.
2. terminal according to claim 1, it is characterised in that circuit of the microphone in first cavity with
Circuit in second cavity has identical circuit structure and identical wire laying mode.
3. terminal according to claim 1, it is characterised in that the output end of first sound detection to the letter
Number circuit of processing component, to the circuit of the Signal Processing Element, has phase with the output end of the second sound detection part
Same wire laying mode.
4. terminal according to claim 1, it is characterised in that first sound detection is examined with the second sound
Survey part is identical sound detection.
5. terminal according to claim 1, it is characterised in that first sound detection and second sound inspection
Survey the distance between part and be less than the first pre-determined distance threshold value.
6. terminal according to claim 1, it is characterised in that first sound detection to the signal processing part
The distance between the circuit of part and second sound detection part to the circuit of the Signal Processing Element are less than the second pre-determined distance
Threshold value.
7. terminal according to claim 1, it is characterised in that the Signal Processing Element includes subtraction circuit.
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CN201510364984.6A CN105100339B (en) | 2015-06-26 | 2015-06-26 | A kind of terminal for being used to converse |
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CN201510364984.6A CN105100339B (en) | 2015-06-26 | 2015-06-26 | A kind of terminal for being used to converse |
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CN105100339B true CN105100339B (en) | 2018-04-06 |
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CN109633309B (en) * | 2018-12-14 | 2021-10-08 | 深圳市银河风云网络系统股份有限公司 | Electromagnetic interference recognition device and method and intelligent door lock |
Citations (2)
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CN101237719A (en) * | 2007-12-28 | 2008-08-06 | 深圳市豪恩电声科技有限公司 | A silicon capacitance microphone and its making method |
CN201294630Y (en) * | 2008-07-25 | 2009-08-19 | 歌尔声学股份有限公司 | Anti-interference capacitance microphone |
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US8130979B2 (en) * | 2005-08-23 | 2012-03-06 | Analog Devices, Inc. | Noise mitigating microphone system and method |
KR101709532B1 (en) * | 2010-11-11 | 2017-02-24 | 엘지전자 주식회사 | Mobile terminal |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101237719A (en) * | 2007-12-28 | 2008-08-06 | 深圳市豪恩电声科技有限公司 | A silicon capacitance microphone and its making method |
CN201294630Y (en) * | 2008-07-25 | 2009-08-19 | 歌尔声学股份有限公司 | Anti-interference capacitance microphone |
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