CN108494918A - A kind of mobile terminal - Google Patents
A kind of mobile terminal Download PDFInfo
- Publication number
- CN108494918A CN108494918A CN201810520979.3A CN201810520979A CN108494918A CN 108494918 A CN108494918 A CN 108494918A CN 201810520979 A CN201810520979 A CN 201810520979A CN 108494918 A CN108494918 A CN 108494918A
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- China
- Prior art keywords
- receiver
- mobile terminal
- cavity
- voice signal
- sound
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The present invention provides a kind of mobile terminal, which includes the first receiver and the second receiver；The opposite both sides of the mobile terminal offer the first cavity and the second cavity, first cavity is equipped with the first opening, second cavity is equipped with the second opening, first opening is opposite with the direction of the second opening, and it is in communication with the outside, first receiver is set in first cavity, second receiver is set in second cavity, first receiver exports the first voice signal, second receiver exports second sound signal, the opposite in phase of first voice signal and the second sound signal.In this way, due to the first voice signal and second sound signal opposite in phase, to which the first voice signal and second sound signal can cancel out each other, so as to avoid the leakage of dialog context, the privacy of user is protected well.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of mobile terminals.
Background technology
With the rapid development of mobile terminal, mobile terminal has become essential a kind of tool in people's life,
And the various aspects for user's life are brought great convenience.Due to the presence of mobile terminal, make between user and user
Communication it is more convenient.User using mobile terminal and other users when being conversed, when there are some users at one's side in oneself,
The content of call is easier to be heard by user at one's side, to be easy to cause the leakage of privacy of user.
Invention content
It is hidden to be easy to cause user to solve in mobile terminal calling process for a kind of mobile terminal of offer of the embodiment of the present invention
The problem of leakage of private.
In order to solve the above-mentioned technical problem, the invention is realized in this way：A kind of mobile terminal, including the first receiver and
Second receiver；The opposite both sides of the mobile terminal offer the first cavity and the second cavity, and first cavity is equipped with the
One opening, second cavity be equipped with second opening, it is described first opening with it is described second opening direction on the contrary, and with outside
Boundary is connected to, and first receiver is set in first cavity, and second receiver is set in second cavity,
First receiver exports the first voice signal, and second receiver exports second sound signal, the first sound letter
Opposite in phase number with the second sound signal.
A kind of mobile terminal of the embodiment of the present invention, including the first receiver and the second receiver；The mobile terminal phase
To both sides offer the first cavity and the second cavity, first cavity is equipped with the first opening, and second cavity is equipped with the
Two openings, the direction of first opening and second opening on the contrary, and be in communication with the outside, first receiver is arranged
In in first cavity, second receiver is set in second cavity, and first receiver exports the first sound
Sound signal, second receiver export second sound signal, the phase of first voice signal and the second sound signal
Position is opposite.In this way, due to the first voice signal and second sound signal opposite in phase, to the first voice signal and second sound
Signal can cancel out each other, and so as to avoid the leakage of dialog context, protect the privacy of user well.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without having to pay creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure chart of mobile terminal provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram that voice signal provided in an embodiment of the present invention is propagated；
Fig. 3 is circuit connection diagram provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
It is the structure chart of mobile terminal provided in an embodiment of the present invention referring to Fig. 1, Fig. 1, as shown in Figure 1, mobile terminal packet
Include the first receiver 1 and the second receiver 2；The opposite both sides of the mobile terminal offer the first cavity 3 and the second cavity 4,
First cavity 3 is equipped with the first opening, and second cavity 4 is equipped with the second opening, and first opening is opened with described second
Mouthful direction on the contrary, and be in communication with the outside, first receiver 1 is set in first cavity 3, and described second is called
Device 2 is set in second cavity 4, and first receiver 1 exports the first voice signal, and second receiver 2 exports
Second sound signal, the opposite in phase of first voice signal and the second sound signal.
In the present embodiment, there may also be batteries 5 for mobile terminal.The both sides of above-mentioned mobile terminal can be screen and the back of the body
The shell in face, or can also be the opposite both sides in mobile terminal edge.Preferably, in the both sides of mobile terminal, side can be with
For screen, the other side can be the shell at the back side.Above-mentioned first receiver 1 exports the first voice signal, the output of the second receiver 2
Second sound signal, the opposite in phase of the first voice signal and second sound signal can then cancel out each other, so as to avoid logical
The leakage for talking about content, protects the privacy of user well.
In order to be better understood from the above process, referring to Fig. 2, Fig. 2 is a kind of voice signal provided in an embodiment of the present invention
The schematic diagram of propagation.In Fig. 2, A is the receiver close to user's ear on mobile terminal, can be denoted as receiver A；B is movement
The receiver far from user's ear, can be denoted as receiver B in terminal.A is the propagation road for the voice signal that receiver A is sent out
Diameter, b are the propagation path for the voice signal that receiver B is sent out, and C is the other users using user at one's side of mobile terminal.
In this way, using user when conversing when mobile terminal, the voice signal part that receiver A is sent out is by this
The ear of user receives, and a remaining part reflects to reach the back side of mobile terminal by the user's head, i.e. C in Fig. 2
Position, and the propagation path of voice signal be a.The voice signal that receiver B is sent out to ambient radiation, can also directly reach
At C.
Receiver A can be the receiver on mobile terminal screen, and receiver B can be in mobile terminal back housing
Receiver.In general, the distance between C and receiver A and the distance between C and receiver B are all higher than 1 meter.Receiver
The distance between A and receiver B (thickness for being considered as mobile terminal) are generally 1 centimetre.The resonant frequency f of receiver0：When
System amplitude when telephone receiver system (may include receiver cavity) frequency of excited target is close with the intrinsic frequency of the system
Reach maximum.The f of receiver cavity0In 400 hertzs, amplitude is maximum herein, eliminates f0The sound of neighbouring frequency can compare
Sound is leaked in good elimination.
Due to λ=v/f, the aerial spread speed v of sound takes 340 meter per seconds, f to take f0It i.e. 400 hertz, then calculates
To f0The wavelength for locating voice signal is 0.85 meter, and propagation path difference a-b is much smaller than 0.85 meter, is made herein so as to ignore
At influence, i.e. the propagation path of voice signal do not generate phase difference, so needing to export between receiver A and receiver B
The opposite in phase of voice signal can just offset voice signal.
Since receiver is close using the distance between the ear of user from mobile terminal, and the receiver of mobile terminal
The distance between A and receiver B are also close, to the approximate influence that can ignore above-mentioned distance.Due to receiver A and receiver
The opposite in phase of the voice signal of B outputs, i.e. receiver A differ the strange of 1/2 wavelength with the position of the receiver B voice signals exported
Several times, sound can cancel out each other, and the user C around mobile terminal then can't hear the content of call, protect user's well
Privacy.
In the embodiment of the present invention, above-mentioned mobile terminal can be mobile phone, tablet computer (Tablet
PersonalComputer), laptop computer (Laptop Computer), personal digital assistant (personal
Digitalassistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or wearable
Equipment (Wearable Device) etc..
Optionally, the audio output circuit of first receiver 1 and second receiver 2 with the mobile terminal
Electrical connection, and the voice signal that the audio output circuit is exported to first receiver 1, and to second receiver 2
The opposite in phase of the voice signal of output.
In present embodiment, above-mentioned first receiver 1 and second receiver 2 are defeated with the audio of the mobile terminal
Go out circuit electrical connection, to which voice signal can be output to the first receiver 1 and the second receiver 2 by audio output circuit.On
The voice signal that audio output circuit is exported to first receiver 1 is stated, is believed with the sound exported to second receiver 2
Number opposite in phase, can be realized by an audio decoder, or can also be by two even more than audio decoder
Device is realized, is not construed as limiting to this present embodiment.Opposite to different receiver output phases by audio output circuit
Voice signal, so as to so that voice signal is cancelled out each other, avoid leakage sound.
Optionally, the audio output circuit includes audio decoder.
In present embodiment, above-mentioned audio output circuit includes audio decoder, so as to well to voice signal
It is decoded, to be output to different receivers.
Optionally, the negative input end of the positive input terminal of first receiver 1 and second receiver 2, with it is described
The positive output end of audio decoder connects；The positive input of the negative input end of first receiver 1 and second receiver 2
End, connect with the negative output terminal of the audio decoder.
In present embodiment, the negative input end of the positive input terminal of above-mentioned first receiver 1 and second receiver 2,
It is connect with the positive output end of the audio decoder；The negative input end of above-mentioned first receiver 1 and second receiver 2 are just
Input terminal is connect with the negative output terminal of the audio decoder.First receiver 1 and the second receiver 2 can in this way connect
The voice signal of opposite in phase is received, to the opposite voice signal of respective output phase, so that voice signal is offset.
In order to be better understood from above-mentioned connection type, referring to Fig. 3, Fig. 3 is a kind of circuit provided in an embodiment of the present invention
Connection diagram.It can be seen that, there is the ends P and N-terminal, the ends P of audio decoder and N in audio decoder and receiver in Fig. 3
End is respectively positive output end and negative output terminal, and the ends P of receiver and N-terminal are respectively positive input terminal and negative input end.Audio decoder
The ends P of device are connect with the N-terminal at the ends P of the first receiver and the second receiver, the N of the N-terminal of audio decoder and the first receiver
End is connected with the ends P of the second receiver.To which the first receiver and the second receiver can be believed with the opposite sound of receiving phase
Number, to the opposite voice signal of output phase.
In the prior art, the sound revealed using elimination of the phase is needed to need to increase voice signal phase detecting module and anti-
Phase voice signal generation module, and detect and postpone with generating process existence time, the sound of leakage cannot be eliminated well.This reality
It applies in mode, it is only necessary to which an audio decoder can both ensure to the opposite voice signal of two receiver output phases
Temporal synchronization, also saves the cost of mobile terminal.
Optionally, first receiver 1 is set to the side where the display screen of the mobile terminal, described second by
Words device 2 is set to the side where the back housing of the mobile terminal.
In present embodiment, above-mentioned first receiver 1 is set to the side where the display screen of the mobile terminal, described
Second receiver 2 is set to the side where the back housing of the mobile terminal.When user answers using the first receiver 1
When electric, the first voice signal of the first receiver 1 output can be with the rising tone of the second receiver 2 output through user's head reflection
Sound signal is cancelled out each other, to make what some users of shell direction can't hear mobile terminal to answer content using user, from
And the privacy of user is protected well.
Certainly, with the rapid development of mobile terminal technology, in fact it could happen that both sides are the mobile terminal of display screen.Example
Such as, the side of mobile terminal is the first display screen, and the other side is second display screen.At this point, present embodiment can also be used
Receiver is arranged in set-up mode, for example, the first receiver 1 can be set to the side where the first display screen, by second by
Words device 2 is set to the side where second display screen.In this way, in user's communication, the privacy of user can also be protected well.
Optionally, first receiver 1 is arranged with 2 face of the second receiver.
In present embodiment, above-mentioned first receiver 1 and 2 face of the second receiver are arranged, first called to make
The distance between device 1 and the second receiver 2 reach minimum, so as to which error is reduced to minimum, preferably eliminate leakage sound.
Optionally, the axial line of the axial line of first receiver 1 and second receiver 2 is not in same straight line
On.
In present embodiment, there may be some other components on mobile terminal, for example, some sensors or some
Camera etc., such first receiver, 1 and second receiver 2 possibly can not accomplish that face is arranged, and can have one at this time
A little deviations.The axial line of the axial line and the second receiver 2 of the first receiver 1 is set to be not arranged on the same straight line, so as to very
Good avoids some other components on mobile terminal.
Optionally, the first receiver 1 includes the first vibrating diaphragm 11 and the first sound outlet hole 12, and second receiver 2 includes the
Two vibrating diaphragms 21 and the second sound outlet hole 22.
In present embodiment, above-mentioned first vibrating diaphragm 11 can generate vibration, and the voice signal sent out can go out by first
Sound hole 12.Similarly, the second receiver 2 can also carry out sounding with same principle.
Optionally, first receiver 1 is identical as the specification of second receiver 2.
In present embodiment, above-mentioned specification may include volume, length, shape and weight etc..Above-mentioned first receiver 1
It is identical as the specification of second receiver 2, so as to so that the first receiver 1 exports the first voice signal and the second receiver
2 output second sound signals are preferably offset, to eliminate leakage sound.
Optionally, first cavity 3 is identical as the size of second cavity 4.
In present embodiment, above-mentioned first cavity 3 is identical as the size of second cavity 4, makes the structure of mobile terminal
Symmetrically, also the first voice signal and second sound signal can be made preferably to offset, to eliminate leakage sound.
A kind of mobile terminal of the embodiment of the present invention, including the first receiver 1 and the second receiver 2；The mobile terminal
Opposite both sides offer the first cavity 3 and the second cavity 4, and first cavity 3 is equipped with the first opening, second cavity 4
Equipped with second opening, it is described first opening with it is described second be open direction on the contrary, and be in communication with the outside, described first is called
Device 1 is set in first cavity 3, and second receiver 2 is set in second cavity 4, first receiver 1
The first voice signal is exported, second receiver 2 exports second sound signal, first voice signal and the rising tone
The opposite in phase of sound signal.In this way, due to the first voice signal and second sound signal opposite in phase, to the first voice signal
It can cancel out each other with second sound signal, so as to avoid the leakage of dialog context, protect the privacy of user well.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within the protection of the present invention.
Claims (10)
1. a kind of mobile terminal, which is characterized in that including the first receiver and the second receiver；The mobile terminal it is opposite two
Side offers the first cavity and the second cavity, and first cavity is equipped with the first opening, and second cavity is equipped with the second opening,
The direction of first opening and second opening on the contrary, and be in communication with the outside, described in first receiver is set to
In first cavity, second receiver is set in second cavity, and first receiver exports the first voice signal,
Second receiver exports second sound signal, the opposite in phase of first voice signal and the second sound signal.
2. mobile terminal according to claim 1, which is characterized in that first receiver and second receiver are equal
It is electrically connected with the audio output circuit of the mobile terminal, and the sound that the audio output circuit is exported to first receiver
Sound signal, the opposite in phase with the voice signal exported to second receiver.
3. mobile terminal according to claim 2, which is characterized in that the audio output circuit includes audio decoder.
4. mobile terminal according to claim 3, which is characterized in that the positive input terminal of first receiver and described
The negative input end of two receivers is connect with the positive output end of the audio decoder；The negative input end of first receiver
With the positive input terminal of second receiver, it is connect with the negative output terminal of the audio decoder.
5. mobile terminal according to any one of claim 1 to 4, which is characterized in that first receiver is set to
Side where the display screen of the mobile terminal, second receiver are set to where the back housing of the mobile terminal
Side.
6. mobile terminal according to claim 5, which is characterized in that first receiver and second receiver are just
To setting.
7. mobile terminal according to claim 5, which is characterized in that the axial line of first receiver and described second
The axial line of receiver is not arranged on the same straight line.
8. mobile terminal according to claim 5, which is characterized in that the first receiver goes out sound including the first vibrating diaphragm and first
Hole, second receiver include the second vibrating diaphragm and the second sound outlet hole.
9. mobile terminal according to any one of claim 1 to 4, which is characterized in that first receiver with it is described
The specification of second receiver is identical.
10. mobile terminal according to any one of claim 1 to 4, which is characterized in that first cavity and described the
The size of two cavitys is identical.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520979.3A CN108494918A (en) | 2018-05-28 | 2018-05-28 | A kind of mobile terminal |
| PCT/CN2019/086787 WO2019228180A1 (en) | 2018-05-28 | 2019-05-14 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520979.3A CN108494918A (en) | 2018-05-28 | 2018-05-28 | A kind of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108494918A true CN108494918A (en) | 2018-09-04 |
Family
ID=63351247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810520979.3A Pending CN108494918A (en) | 2018-05-28 | 2018-05-28 | A kind of mobile terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108494918A (en) |
| WO (1) | WO2019228180A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348004A (en) * | 2018-10-09 | 2019-02-15 | 安庆市汇智科技咨询服务有限公司 | A kind of mobile phone |
| CN110290262A (en) * | 2019-06-14 | 2019-09-27 | 华为技术有限公司 | A kind of call method and terminal device |
| WO2019228180A1 (en) * | 2018-05-28 | 2019-12-05 | 维沃移动通信有限公司 | Mobile terminal |
| CN110933211A (en) * | 2019-11-29 | 2020-03-27 | 维沃移动通信有限公司 | Electronic device |
| CN110944078A (en) * | 2019-11-29 | 2020-03-31 | 维沃移动通信有限公司 | Electronic device |
| CN110972029A (en) * | 2019-11-25 | 2020-04-07 | Oppo广东移动通信有限公司 | Directional sound production device and method and electronic equipment |
| CN111225305A (en) * | 2020-01-15 | 2020-06-02 | Oppo广东移动通信有限公司 | Electronic device |
| CN111405097A (en) * | 2020-03-18 | 2020-07-10 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN111988701A (en) * | 2020-08-27 | 2020-11-24 | Oppo（重庆）智能科技有限公司 | Terminal equipment |
| CN112118339A (en) * | 2019-06-20 | 2020-12-22 | 华为技术有限公司 | Electronic device, signal processing method and apparatus |
| CN112351372A (en) * | 2019-08-06 | 2021-02-09 | 悠声股份有限公司 | Mobile phone including audio system with back side sub-opening |
| CN112653780A (en) * | 2019-09-26 | 2021-04-13 | 北京小米移动软件有限公司 | Mobile terminal and method of controlling audio signal of mobile terminal |
| WO2021184920A1 (en) * | 2020-03-20 | 2021-09-23 | 华为技术有限公司 | Method and apparatus for masking sound, and terminal device |
| CN113645334A (en) * | 2020-05-11 | 2021-11-12 | 华为技术有限公司 | Device for reducing sound leakage |
| CN113746975A (en) * | 2020-05-29 | 2021-12-03 | 华为技术有限公司 | Method for counteracting sound leakage and electronic equipment |
| CN113992772A (en) * | 2021-10-12 | 2022-01-28 | 维沃移动通信有限公司 | Electronic equipment and audio signal processing method thereof |
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| CN115633297A (en) * | 2022-10-21 | 2023-01-20 | 瑞声光电科技(常州)有限公司 | Electronic equipment |
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| CN109348004A (en) * | 2018-10-09 | 2019-02-15 | 安庆市汇智科技咨询服务有限公司 | A kind of mobile phone |
| CN110290262A (en) * | 2019-06-14 | 2019-09-27 | 华为技术有限公司 | A kind of call method and terminal device |
| CN112118339A (en) * | 2019-06-20 | 2020-12-22 | 华为技术有限公司 | Electronic device, signal processing method and apparatus |
| CN112351372A (en) * | 2019-08-06 | 2021-02-09 | 悠声股份有限公司 | Mobile phone including audio system with back side sub-opening |
| CN112653780B (en) * | 2019-09-26 | 2023-08-04 | 北京小米移动软件有限公司 | Mobile terminal and method of controlling audio signal of mobile terminal |
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| CN110972029A (en) * | 2019-11-25 | 2020-04-07 | Oppo广东移动通信有限公司 | Directional sound production device and method and electronic equipment |
| CN110972029B (en) * | 2019-11-25 | 2021-05-07 | Oppo广东移动通信有限公司 | Directional sound production device and electronic equipment |
| CN110944078A (en) * | 2019-11-29 | 2020-03-31 | 维沃移动通信有限公司 | Electronic device |
| CN110933211A (en) * | 2019-11-29 | 2020-03-27 | 维沃移动通信有限公司 | Electronic device |
| CN110933211B (en) * | 2019-11-29 | 2021-07-13 | 维沃移动通信有限公司 | Electronic device |
| CN110944078B (en) * | 2019-11-29 | 2021-07-06 | 维沃移动通信有限公司 | Electronic device |
| CN111225305A (en) * | 2020-01-15 | 2020-06-02 | Oppo广东移动通信有限公司 | Electronic device |
| CN111225305B (en) * | 2020-01-15 | 2022-01-07 | Oppo广东移动通信有限公司 | Electronic device |
| CN111405097B (en) * | 2020-03-18 | 2022-01-14 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN111405097A (en) * | 2020-03-18 | 2020-07-10 | Oppo广东移动通信有限公司 | Electronic equipment |
| WO2021184920A1 (en) * | 2020-03-20 | 2021-09-23 | 华为技术有限公司 | Method and apparatus for masking sound, and terminal device |
| CN113497849A (en) * | 2020-03-20 | 2021-10-12 | 华为技术有限公司 | Sound masking method and device and terminal equipment |
| CN113645334A (en) * | 2020-05-11 | 2021-11-12 | 华为技术有限公司 | Device for reducing sound leakage |
| CN113746975A (en) * | 2020-05-29 | 2021-12-03 | 华为技术有限公司 | Method for counteracting sound leakage and electronic equipment |
| CN111988701A (en) * | 2020-08-27 | 2020-11-24 | Oppo（重庆）智能科技有限公司 | Terminal equipment |
| CN113992772A (en) * | 2021-10-12 | 2022-01-28 | 维沃移动通信有限公司 | Electronic equipment and audio signal processing method thereof |
| CN113992772B (en) * | 2021-10-12 | 2024-03-01 | 维沃移动通信有限公司 | Electronic equipment and audio signal processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019228180A1 (en) | 2019-12-05 |
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Application publication date: 20180904 |