CN102196079A - Mobile phone and working method thereof - Google Patents
Mobile phone and working method thereof Download PDFInfo
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- CN102196079A CN102196079A CN2010101283086A CN201010128308A CN102196079A CN 102196079 A CN102196079 A CN 102196079A CN 2010101283086 A CN2010101283086 A CN 2010101283086A CN 201010128308 A CN201010128308 A CN 201010128308A CN 102196079 A CN102196079 A CN 102196079A
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- analog switch
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Abstract
The invention discloses a mobile phone, which is provided with a processor. The mobile phone further comprises a first microphone, a second microphone and an analogue switch, wherein the first microphone is arranged at the bottom of a mainboard of the mobile phone; the second microphone is arranged on the middle part of the mainboard of the mobile phone; and the analogue switch is controlled by the processor, and is used for switching the first microphone on to work in a normal call mode of the mobile phone, and switching the second microphone on to work in a hand-free call mode of the mobile phone. The invention also discloses a working method for the mobile phone. Due to the adoption of a dual-microphone design, the aim of preventing the squeal and echo of the mobile phone in the hand-free call mode is fulfilled.
Description
Technical field
The present invention relates to a kind of mobile phone, particularly relate to a kind of mobile phone and method of work thereof.
Background technology
Along with mobile communication rapid development, mobile phone has become a kind of important tool that people's daily communation is linked up, but some problems that run into are in actual use also perplexing the mobile phone designer always.For example; when the user is in the noisy environment; or be in meeting etc. when needing other people together to participate in the occasion of mobile phone dialogue; often need to use the hand-free call function of mobile phone; but for most mobile phones; particularly at the bigger mobile phone of some speaker sounds; actual hand-free call effect is not fully up to expectations usually; because uttering long and high-pitched sounds of producing of mobile phone and echo influence speech quality, this defective makes this original very function of hommization of hand-free call be difficult to realize that it designs original intention through regular meeting.
Summary of the invention
The technical problem to be solved in the present invention is to tend to influence the defective of speech quality with echo because of uttering long and high-pitched sounds under the hand-free call pattern in order to overcome mobile phone of the prior art, provides a kind of mobile phone that can prevent to produce the mobile phone and the method for work thereof of uttering long and high-pitched sounds with echo under the hand-free call pattern.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of mobile phone, and it has a processor, and its characteristics are that this mobile phone also comprises: one is located at first microphone of the mainboard bottom of this mobile phone; One is located at second microphone at the mainboard middle part of this mobile phone; One is subjected to the analog switch of this processor control, is used for connecting this first microphone work under the normal talking pattern of this mobile phone, and connects this second microphone work under the hand-free call pattern of this mobile phone.
Wherein, this processor is controlled the switching of this analog switch by a GPIO pin.
Preferably, the sender of this first and second microphone all has the outline of arc.
Preferably, this analog switch acquiescence is connected this first microphone, and during from the normal talking mode switch to the hand-free call pattern, switches to this second microphone from this first microphone at this mobile phone.
Preferably, all be applied with bias voltage between this first microphone and this analog switch and between this second microphone and this analog switch.
Preferably, the angle between the sender of the sender of this first microphone and the loudspeaker of this mobile phone is 0 degree or 90 degree, and the angle between the sender of the sender of this second microphone and the loudspeaker of this mobile phone is 90 degree or spends more than or equal to 180.
Another technical scheme of the present invention is: a kind of method of work of above-mentioned mobile phone, its characteristics are, when this mobile phone is in normal talking pattern following time, this processor is controlled this analog switch and is connected this first microphone work, when this mobile phone is in hand-free call pattern following time, this processor is controlled this analog switch and is connected this second microphone work.
Preferably, when this mobile phone during from the normal talking mode switch to the hand-free call pattern, this processor this analog switch of control earlier switches to this second microphone from this first microphone, and this processor switches to loudspeaker with the loud speaker of this mobile phone from receiver more then.
Positive progressive effect of the present invention is: the present invention adopts the dual microphone design, control is positioned at first and second microphones at mainboard diverse location place is working under the normal talking pattern of mobile phone He under the hand-free call pattern respectively, to realize preventing that mobile phone from occurring uttering long and high-pitched sounds and the purpose of echoing under the hand-free call state.The present invention is applicable to various types of mobile phones, no matter is that plate rolls, liding machine or slip lid machine can both be used the present invention and improve call tone quality under the hands-free state.In addition, dual microphone design of the present invention does not have any specific (special) requirements to the structure of microphone itself, and the microphone of various directivity, various sensitivity and various response frequencies can be applied among the present invention, and the scope of application is extensive.
Description of drawings
Fig. 1 is the analog switch in the mobile phone of the present invention and the circuit diagram of peripheral element thereof.
Fig. 2 is first or second microphone in the mobile phone of the present invention and the circuit diagram of peripheral element thereof.
Fig. 3 a is first structural representation of the sender of first or second microphone in the mobile phone of the present invention.
Fig. 3 b is second structural representation of the sender of first or second microphone in the mobile phone of the present invention.
Fig. 4 a is the side perspective view of first embodiment of mobile phone of the present invention.
Fig. 4 b is the front perspective view of first embodiment of mobile phone of the present invention.
Fig. 4 c is the sender of first and second microphone among first embodiment of mobile phone of the present invention and the angle graph of a relation between the loudspeaker sender.
Fig. 5 a is the side perspective view of second embodiment of mobile phone of the present invention.
Fig. 5 b is the front perspective view of second embodiment of mobile phone of the present invention.
Fig. 5 c is the sender of first and second microphone among second embodiment of mobile phone of the present invention and the angle graph of a relation between the loudspeaker sender.
Fig. 6 a is the side perspective view of the 3rd embodiment of mobile phone of the present invention.
Fig. 6 b is the front perspective view of the 3rd embodiment of mobile phone of the present invention.
Fig. 6 c is the sender of first and second microphone among the 3rd embodiment of mobile phone of the present invention and the angle graph of a relation between the loudspeaker sender.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
The present invention utters long and high-pitched sounds and echoing in order to prevent that mobile phone from producing under the hand-free call pattern, adopted a kind of dual microphone design especially, promptly one first microphone is set in the mainboard bottom of mobile phone, be exclusively used in recipient's acoustic simulation signal under the normal talking pattern of mobile phone, simultaneously, be provided with one second microphone at the mainboard middle part of mobile phone in addition, be exclusively used in recipient's acoustic simulation signal under the hand-free call pattern of mobile phone.And in order to ensure each moment in the talking state of mobile phone, it is in running order only to have a microphone in this first and second microphone, promptly realize the switching controls of the processor of mobile phone to this first and second microphone, this mobile phone of the present invention also is provided with an analog switch, this analog switch is under the control of processor, the circuit that is used for this first microphone of connection under the normal talking pattern of this mobile phone makes its work, and the circuit of this second microphone of connection makes its work under the hand-free call pattern of this mobile phone.
Figure 1 shows that the circuit diagram of this analog switch and peripheral element thereof.In this embodiment, processor is controlled the switching of this analog switch by a GPIO (general input and output) pin.MAIN_MIC among the figure represents this first microphone, and HFR_MIC then represents this second microphone.When processor was controlled this GPIO pin and is 0, this analog switch was in default conditions, and this moment, the circuit of this first microphone was given tacit consent to connection, and mobile phone is realized normal talking; When on the software operation interface of user at mobile phone during from the normal talking mode switch to the hand-free call pattern, processor is at first controlled this GPIO pin and is become 1 by 0, the change action of this analog switch is triggered, thereby cut off the circuit of this first microphone, and connect the circuit of this second microphone, processor switches to loudspeaker with the loud speaker of this mobile phone from receiver more then, finally makes mobile phone realize hand-free call.Under different conversation environment, processor can call different audio frequency parameters, to satisfy the conversation gain, to suppress the requirement of echo.
Figure 2 shows that the circuit diagram of this first or second microphone and peripheral element thereof.Without any specific (special) requirements, the microphone of existing various directivity, various sensitivity and various response frequencies all can adopt to microphone in the present invention, and promptly this first and second microphone can adopt identical circuit to realize.When representing the circuit of this first microphone, the port in circuit diagram left side is MAIN_MIC+ and MAIN_MIC-, and when representing the circuit of this second microphone, the port in circuit diagram left side is HFR_MIC+ and HFR_MIC-.But what present embodiment was different with the circuit of existing mobile phone is that with bias voltage, promptly the MCBIAS shown in the figure is arranged on by (and between this second microphone and this analog switch) between this first microphone and this analog switch.Apply the reasons are as follows of this two places bias voltage: the present invention has adopted analog switch, and the analog switch of main flow all is that malleation is switched in the market, when the difference microphone circuit is switched, it can filter the negative voltage AC signal in the microphone circuit, therefore, in the present embodiment, above-mentioned bias voltage has been loaded on the analog switch positive circuit of microphone circuit before.
Fig. 3 a and Fig. 3 b show the design of existing two kinds of microphone senders at present.These two kinds of designs all go for the present invention, but the design shown in preferred Fig. 3 b, promptly the sender of microphone has the outline of arc, and this design can be evaded microphone effectively and because of sound the noise that concussion causes take place in the sound chamber when radio reception.
In the present invention, angle between the sender of the sender of this first microphone and mobile phone loudspeaker can be designed as 0 degree or 90 degree, and the angle between the sender of the sender of this second microphone and these mobile phone loudspeaker can be designed as 90 degree or spends more than or equal to 180.Fig. 4 a-4c, Fig. 5 a-5c and Fig. 6 a-6c are the direction setting that example shows wherein a kind of feasible microphone sender with plate rolls, slip lid machine and liding machine respectively.Fig. 4 a-4c is the situation of plate rolls, and wherein, Fig. 4 c has corresponding position relation with Fig. 4 b, and the angle between the sender of this first microphone and the loudspeaker sender is 90 degree, and the angle between the sender of this second microphone and the loudspeaker sender also is 90 degree.Fig. 5 a-5c is the situation of slip lid machine, wherein, Fig. 5 c has corresponding position relation with Fig. 5 b, and the angle between the sender of this first microphone and the loudspeaker sender is 90 degree, and the angle between the sender of this second microphone and the loudspeaker sender then is 180 degree.Fig. 6 a-6c is the situation of liding machine, wherein, Fig. 6 c has corresponding position relation with Fig. 6 b, and the angle between the sender of this first microphone and the loudspeaker sender is 90 degree, and the angle between the sender of this second microphone and the loudspeaker sender then is greater than 180 degree.
In sum, the present invention adopts the dual microphone design, control is positioned at first and second microphones at mainboard diverse location place is working under the normal talking pattern of mobile phone He under the hand-free call pattern respectively, thereby has realized preventing that mobile phone from occurring uttering long and high-pitched sounds under the hand-free call state and the purpose of echoing.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (8)
1. mobile phone, it has a processor, it is characterized in that, and this mobile phone also comprises:
One is located at first microphone of the mainboard bottom of this mobile phone;
One is located at second microphone at the mainboard middle part of this mobile phone;
One is subjected to the analog switch of this processor control, is used for connecting this first microphone work under the normal talking pattern of this mobile phone, and connects this second microphone work under the hand-free call pattern of this mobile phone.
2. mobile phone as claimed in claim 1 is characterized in that, this processor is controlled the switching of this analog switch by a GPIO pin.
3. mobile phone as claimed in claim 1 is characterized in that the sender of this first and second microphone all has the outline of arc.
4. mobile phone as claimed in claim 1 is characterized in that, this analog switch acquiescence is connected this first microphone, and during from the normal talking mode switch to the hand-free call pattern, switches to this second microphone from this first microphone at this mobile phone.
5. as any described mobile phone among the claim 1-4, it is characterized in that, all be applied with bias voltage between this first microphone and this analog switch and between this second microphone and this analog switch.
6. mobile phone as claimed in claim 5, it is characterized in that, angle between the sender of the sender of this first microphone and the loudspeaker of this mobile phone is 0 degree or 90 degree, and the angle between the sender of the sender of this second microphone and the loudspeaker of this mobile phone is 90 degree or spends more than or equal to 180.
7. the method for work of a mobile phone as claimed in claim 1, it is characterized in that, when this mobile phone is in normal talking pattern following time, this processor is controlled this analog switch and is connected this first microphone work, when this mobile phone is in hand-free call pattern following time, this processor is controlled this analog switch and is connected this second microphone work.
8. operating handset method as claimed in claim 7, it is characterized in that, when this mobile phone during from the normal talking mode switch to the hand-free call pattern, this processor this analog switch of control earlier switches to this second microphone from this first microphone, and this processor switches to loudspeaker with the loud speaker of this mobile phone from receiver more then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101283086A CN102196079A (en) | 2010-03-19 | 2010-03-19 | Mobile phone and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101283086A CN102196079A (en) | 2010-03-19 | 2010-03-19 | Mobile phone and working method thereof |
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| CN102196079A true CN102196079A (en) | 2011-09-21 |
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| CN2010101283086A Pending CN102196079A (en) | 2010-03-19 | 2010-03-19 | Mobile phone and working method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624961A (en) * | 2012-02-29 | 2012-08-01 | 华为终端有限公司 | Method and terminal for preventing sound crosstalk between external loudspeaker and microphone |
| WO2015067067A1 (en) * | 2013-11-11 | 2015-05-14 | 中兴通讯股份有限公司 | Calling method, communication terminal and storage medium |
| CN105530391A (en) * | 2015-12-07 | 2016-04-27 | 惠州Tcl移动通信有限公司 | Method and system for perfecting hands-free call echo of mobile terminal |
| WO2019056300A1 (en) * | 2017-09-22 | 2019-03-28 | 深圳传音通讯有限公司 | Adjustment system and method for automatically switching audio mode during call |
| CN110022387A (en) * | 2018-01-08 | 2019-07-16 | 仁宝电脑工业股份有限公司 | Communication device |
-
2010
- 2010-03-19 CN CN2010101283086A patent/CN102196079A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624961A (en) * | 2012-02-29 | 2012-08-01 | 华为终端有限公司 | Method and terminal for preventing sound crosstalk between external loudspeaker and microphone |
| WO2013127302A1 (en) * | 2012-02-29 | 2013-09-06 | 华为终端有限公司 | Method and terminal for preventing voice crosstalk between external loudspeaker and microphone |
| WO2015067067A1 (en) * | 2013-11-11 | 2015-05-14 | 中兴通讯股份有限公司 | Calling method, communication terminal and storage medium |
| CN104639719A (en) * | 2013-11-11 | 2015-05-20 | 中兴通讯股份有限公司 | Calling method and communication terminal |
| CN105530391A (en) * | 2015-12-07 | 2016-04-27 | 惠州Tcl移动通信有限公司 | Method and system for perfecting hands-free call echo of mobile terminal |
| WO2017096923A1 (en) * | 2015-12-07 | 2017-06-15 | 惠州Tcl移动通信有限公司 | Method and system for alleviating hands-free call echo of mobile terminal |
| US10277750B2 (en) | 2015-12-07 | 2019-04-30 | Huizhou Tcl Mobile Communication Co., Ltd | Method and system for improving echo in hands-free call of mobile terminal |
| WO2019056300A1 (en) * | 2017-09-22 | 2019-03-28 | 深圳传音通讯有限公司 | Adjustment system and method for automatically switching audio mode during call |
| CN110022387A (en) * | 2018-01-08 | 2019-07-16 | 仁宝电脑工业股份有限公司 | Communication device |
| US10750002B2 (en) | 2018-01-08 | 2020-08-18 | Compal Electronics, Inc. | Communication device |
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Application publication date: 20110921 |