CN102624961A - Method and terminal for preventing sound crosstalk between external loudspeaker and microphone - Google Patents
Method and terminal for preventing sound crosstalk between external loudspeaker and microphone Download PDFInfo
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- CN102624961A CN102624961A CN2012100501400A CN201210050140A CN102624961A CN 102624961 A CN102624961 A CN 102624961A CN 2012100501400 A CN2012100501400 A CN 2012100501400A CN 201210050140 A CN201210050140 A CN 201210050140A CN 102624961 A CN102624961 A CN 102624961A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
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Abstract
An embodiment of the invention provides a method and a terminal for preventing sound crosstalk between an external loudspeaker and a microphone, which relate to the communication field. The sound crosstalk between the external loudspeaker and the microphone can be effectively prevented under the conditions that the user experience is satisfied and the cost isn't increased. The method includes detecting whether the hand-free call function of the terminal is started or not after the terminal accesses a call and using a second microphone and the external loudspeaker among a first microphone, a built-in loudspeaker, the second microphone and the external loudspeaker when the hand-free call function is started, and the distance between the first microphone and the external loudspeaker is less than that between the second microphone and the external loudspeaker. The method and the terminal for preventing the sound crosstalk between the external loudspeaker and the microphone are applied to terminal calls.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and terminal that prevents that outgoing loudspeaker and microphone voice from crosstalking.
Background technology
Loud speaker and microphone are the necessary electronic units of terminal equipment such as mobile phone; Terminals such as mobile phone have outer putting and non-outer two loud speakers of putting usually; Wherein non-outgoing loudspeaker also can be described as receiver, is used for when the user carries out non-hand-free call, giving the user with the other side's transfer voice; Outgoing loudspeaker is usually used in when hands-free phone sound with the other side and amplifies and play to the user, or is used for outer putting the music on and waits the needs occasion of sound reproduction sound or audio signal outward.Microphone is used for picking up user's sound, and sends to the other side to sound through network.In Terminal Design processes such as mobile phone, run into the situation of outgoing loudspeaker and microphone close through regular meeting.The user when making hands-free phone because outgoing loudspeaker and microphone hypotelorism; Microphone can pick up the other side's that outgoing loudspeaker plays sound and said the other side's sound is returned to the other side again; Cause echo; Can produce when serious and utter long and high-pitched sounds, promptly cause outgoing loudspeaker and microphone voice to crosstalk.
It is multiple to be used in the prior art to prevent that method that outgoing loudspeaker and microphone voice are crosstalked from having, and technical scheme commonly used at present is the safe distance that outgoing loudspeaker and microphone are set; Perhaps reduce the gain of amplifier of microphone, promptly reduce sensitivity; Perhaps reduce the volume of outgoing loudspeaker; Be exactly to take special circuit and software algorithm to eliminate echo in addition.
In the process of using above-mentioned several kinds of technical schemes, the inventor finds to have following problem in the prior art at least: in fact the safe distance that outgoing loudspeaker and microphone are set has limited the freedom of outgoing loudspeaker and microphone design; The actual people of being of volume who reduces the gain of amplifier of microphone or reduce outgoing loudspeaker is a performance of having abandoned microphone or outgoing loudspeaker, has reduced user's impression; Take special circuit and software algorithm then to increase cost and power consumption.
Summary of the invention
Embodiments of the invention provide a kind of method and terminal that prevents that outgoing loudspeaker and microphone voice from crosstalking, and can prevent effectively under the condition of cost that outgoing loudspeaker and microphone voice from crosstalking satisfying user experience and do not increase.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of method that prevents that outgoing loudspeaker and microphone voice from crosstalking comprises:
Behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens;
If said hand-free call function is opened, then use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; So that thereby the user uses said second microphone and said outgoing loudspeaker to prevent the acoustic crosstalk of said outgoing loudspeaker and said first microphone when carrying out hand-free call.
A kind of terminal comprises:
Detecting unit is used for behind the connecting incoming call of terminal, and whether the hand-free call function of sense terminals opens;
Control unit is used for when said hand-free call function is opened, using said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; So that thereby the user uses said second microphone and said outgoing loudspeaker to prevent the acoustic crosstalk of said outgoing loudspeaker and said first microphone when carrying out hand-free call.
The embodiment of the invention provides a kind of method and terminal that prevents that outgoing loudspeaker and microphone voice from crosstalking, and through behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens; And when said hand-free call function is opened, use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker.The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; Make user's said outgoing loudspeaker of service range when carrying out hand-free call said second microphone far away, effectively prevented the acoustic crosstalk of outgoing loudspeaker and microphone.Said method need not be provided with the safe distance of said first microphone and said outgoing loudspeaker, thereby has improved the degree of freedom of outgoing loudspeaker and microphone design; Also need not reduce the performance of the microphone and the outgoing loudspeaker at terminal, thereby guarantee the performance of the microphone and the outgoing loudspeaker at terminal, promote user's experience; Also need not take special circuit and software algorithm, thereby provide cost savings and power consumption.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of method flow sketch map that prevents that outgoing loudspeaker and microphone voice from crosstalking that Fig. 1 provides for embodiment 1;
A kind of method flow sketch map that prevents that outgoing loudspeaker and microphone voice from crosstalking that Fig. 2 provides for embodiment 2;
A kind of terminal structure block diagram that Fig. 3 provides for embodiment 2;
A kind of mobile phone sketch map that Fig. 4 provides for embodiment 2.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of method that prevents that loud speaker and microphone voice from crosstalking, and is as shown in Figure 1, and said method can may further comprise the steps:
101, behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens.
102, if said hand-free call function is opened, then use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker.
The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker.
Wherein, said 102 comprise, if said hand-free call function opens, and said first microphone, non-outgoing loudspeaker be in opening, then closes said first microphone, non-outgoing loudspeaker, uses said second microphone and said outgoing loudspeaker.This scene can be that the user just switches to hand-free call from non-hand-free call, and the hand-free call function is just opened, said first microphone, the situation when non-outgoing loudspeaker is not also closed used during non-hand-free call.Said 102 also comprise, if said hand-free call function opens, and said first microphone, non-outgoing loudspeaker be in closed condition, then uses said second microphone and said outgoing loudspeaker.That is,, then use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker if said hand-free call function is opened.
The user can select to carry out hand-free call or non-hand-free call as required after receiving the other side's incoming call.If the user selects to carry out hand-free call, then trigger the hand-free call function of opening the terminal, as clicking the hand-free call function key at terminal.The terminal can be triggered and initiated to open the hand-free call request this moment; Open to said hand-free call function according to said unlatching hand-free call request detection at the terminal; The terminal can be opened second microphone, opened these two operations of outgoing loudspeaker this moment; These two operate in certain hour at interval within successively or carry out simultaneously, do not limit at this.Promptly only use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; Make like this with the first nearer microphone of outgoing loudspeaker spacing and be in closed condition; Use and outgoing loudspeaker spacing second microphone far away; Because the spacing of said second microphone and said outgoing loudspeaker can not cause the acoustic crosstalk of said outgoing loudspeaker and said second microphone, thereby effectively prevent the acoustic crosstalk of outgoing loudspeaker and microphone when carrying out hand-free call.
The embodiment of the invention provides a kind of method that prevents that outgoing loudspeaker and microphone voice from crosstalking, and through behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens; And when said hand-free call function is opened, use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; Close and converse when not finishing in said hand-free call function, use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker.The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; Make user's said outgoing loudspeaker of service range when carrying out hand-free call said second microphone far away, effectively prevented the acoustic crosstalk of outgoing loudspeaker and microphone.Said method need not be provided with the safe distance of said first microphone and said outgoing loudspeaker, thereby has improved the degree of freedom of outgoing loudspeaker and microphone design; Also need not reduce the performance of the microphone and the outgoing loudspeaker at terminal, thereby guarantee the performance of the microphone and the outgoing loudspeaker at terminal, promote user's experience; Also need not take special circuit and software algorithm, thereby provide cost savings and power consumption.
In an a kind of embodiment who prevents the method that loud speaker and microphone voice are crosstalked provided by the invention, as shown in Figure 2, said method is further comprising the steps of except comprising step 101,102:
103, if said hand-free call function is closed and conversed and do not finish, then use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker.That is, when the user when carrying out non-hand-free call, use said first microphone and said non-outgoing loudspeaker.
If the user after receiving the other side's incoming call, selects to carry out non-hand-free call, promptly general normal talking then triggers the non-hand-free call function of opening the terminal, as clicking the non-hand-free call function key at terminal, also is the call function key that is used for incoming call answering commonly used.The hand-free call function at terminal is not opened and is closed condition at this moment; Thereby the terminal can detect said hand-free call function and close; As can detect said hand-free call function through the non-hand-free call request of the unlatching at terminal and close; This moment, first microphone and non-outgoing loudspeaker can be opened in the terminal, promptly only used said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker, to carry out non-hand-free call.
If the user in the process of carrying out hand-free call, carries out non-hand-free call according to the actual conditions needs.This moment, the user can trigger non-hand-free call function of opening the terminal or the hand-free call function that triggering is closed a terminal, to get into non-hand-free call, as clicking the non-hand-free call function key at terminal.The terminal can be triggered the initiation non-hand-free call request of unlatching or triggered and initiate to close the hand-free call request at this moment; The terminal can or be closed the hand-free call request detection and close to said hand-free call function according to the non-hand-free call request of said unlatching; The terminal can be carried out four operations and closed second microphone, closes said outgoing loudspeaker this moment; Open first microphone, open non-outgoing loudspeaker; Promptly only use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker, carry out non-hand-free call.Said four operate in certain hour at interval within successively or carry out simultaneously, but the embodiment of the invention does not limit for the execution sequence of four operations.Preferably; Open first microphone after closing outgoing loudspeaker in said four steps; For example can be according to closing second microphone, closing outgoing loudspeaker; Open first microphone, open non-outgoing loudspeaker and carry out successively, also can be according to closing outgoing loudspeaker, close second microphone, open non-outgoing loudspeaker, opening first microphone etc. and carry out successively.
Certainly, the user also possibly need carry out hand-free call for some reason in the process of carrying out non-hand-free call.This moment, the user can trigger the hand-free call function of opening the terminal, as clicking the hand-free call function key at terminal.The terminal can be triggered and initiated to open the hand-free call request this moment; The terminal can be opened to said hand-free call function according to said unlatching hand-free call request detection; This moment, four operations can be carried out in the terminal: close first microphone, close non-outgoing loudspeaker, open second microphone, open outgoing loudspeaker; Promptly only use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker, carry out hand-free call; Make like this with the first nearer microphone of outgoing loudspeaker spacing and be in closed condition; Use and outgoing loudspeaker spacing second microphone far away; Because the spacing of said second microphone and said outgoing loudspeaker can not cause the acoustic crosstalk of said outgoing loudspeaker and said second microphone; Thereby effectively prevent the acoustic crosstalk of outgoing loudspeaker and microphone when carrying out hand-free call, said microphone comprises said first, second microphone.
Above-mentioned four operate in certain hour at interval within successively or carry out simultaneously, but the embodiment of the invention does not limit for the execution sequence of four operations.Preferably; Closed first microphone before opening outgoing loudspeaker in said four steps; For example can be according to closing first microphone, close non-outgoing loudspeaker, open second microphone, opening outgoing loudspeaker and carry out successively, also can be according to closing non-outgoing loudspeaker, close first microphone, open outgoing loudspeaker, opening second microphone etc. and carry out successively.
104, behind the end of conversation, said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed.
Concrete, end of conversation can have following several kinds of scenes:
A kind of scene is that the user converses when carrying out hand-free call and finished; Said conversation is finished can be triggered by user or the other side; Promptly can be that the user clicks or select the conversation that is through with of the end of conversation key at terminal, also can be that the other side has been hung up phone and has been through with this conversation.What the user used when carrying out hand-free call is second microphone and outgoing loudspeaker, and the promptly non-outgoing loudspeaker and first microphone are closed, and second microphone and outgoing loudspeaker are opened.So when end of conversation or behind the end of conversation, need close second microphone and outgoing loudspeaker, thereby make that said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed behind end of conversation.
Second kind of scene is that the user converses when carrying out non-hand-free call and finished, and said conversation is finished can be triggered by user or the other side.What the user used when carrying out non-hand-free call is the non-outgoing loudspeaker and first microphone, and promptly second microphone and outgoing loudspeaker are closed, and the non-outgoing loudspeaker and first microphone are opened.So when end of conversation or behind the end of conversation, need close the non-outgoing loudspeaker and first microphone, thereby make that said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed behind end of conversation.
Also having a kind of scene is that the other side's incoming call is received at the terminal; But phone is connected in inconvenience for a certain reason; The user directly clicked or selected the end of conversation key at terminal to finish conversation this moment, because the access failure phone is so said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are in closed condition always.
Method flow shown in Figure 2 is applied to the scene of user's end of conversation and user's end of conversation when carrying out hand-free call when carrying out non-hand-free call in the present embodiment.
The embodiment of the invention provides a kind of method that prevents that outgoing loudspeaker and microphone voice from crosstalking, and through behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens; And when said hand-free call function is opened, use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; Close and converse when not finishing in said hand-free call function, use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker.The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; Make user's said outgoing loudspeaker of service range when carrying out hand-free call said second microphone far away, effectively prevented the acoustic crosstalk of outgoing loudspeaker and microphone.Said method need not be provided with the safe distance of said first microphone and said outgoing loudspeaker, thereby has improved the degree of freedom of outgoing loudspeaker and microphone design; Also need not reduce the performance of the microphone and the outgoing loudspeaker at terminal, thereby guarantee the performance of the microphone and the outgoing loudspeaker at terminal, promote user's experience; Also need not take special circuit and software algorithm, thereby provide cost savings and power consumption.
The embodiment of the invention provides a kind of terminal, and said terminal as shown in Figure 3 comprises detecting unit 301, control unit 302.
Detecting unit 301 is used for behind the connecting incoming call of terminal, and whether the hand-free call function of sense terminals opens.
The user can select to carry out hand-free call or non-hand-free call as required after receiving the other side's incoming call.If the user selects to carry out hand-free call, then trigger the hand-free call function of opening the terminal, as clicking the hand-free call function key at terminal.The terminal can be triggered and initiated to open the hand-free call request this moment; Detecting unit 301 is opened to said hand-free call function according to said unlatching hand-free call request detection; Control unit 302 can be opened second microphone, open these two operations of outgoing loudspeaker this moment; These two operate in certain hour at interval within successively or carry out simultaneously, do not limit at this.Promptly only use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; Make like this with the first nearer microphone of outgoing loudspeaker spacing and be in closed condition; Use and outgoing loudspeaker spacing second microphone far away; Because the spacing of said second microphone and said outgoing loudspeaker can not cause the acoustic crosstalk of said outgoing loudspeaker and said second microphone, thereby effectively prevent the acoustic crosstalk of outgoing loudspeaker and microphone when carrying out hand-free call.
Said control unit 302 can specifically be used for; Open in said hand-free call function; And said first microphone, when non-outgoing loudspeaker is in opening, close said first microphone, non-outgoing loudspeaker, use said second microphone and said outgoing loudspeaker.This scene can be that the user just switches to hand-free call from non-hand-free call, and the hand-free call function is just opened, said first microphone, the situation when non-outgoing loudspeaker is not also closed used during non-hand-free call.Said control unit 302 can also specifically be used for, if said hand-free call function opens, and said first microphone, non-outgoing loudspeaker be in closed condition, then uses said second microphone and said outgoing loudspeaker.
Further; Said control unit 302; Also be used for closing and conversing when not finishing, use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker in said hand-free call function; So that said user uses said first microphone and said non-outgoing loudspeaker to carry out non-hand-free call.
If the user after receiving the other side's incoming call, selects to carry out non-hand-free call, promptly general normal talking then triggers the non-hand-free call function of opening the terminal, as clicking the non-hand-free call function key at terminal, the call function key that is used for incoming call answering promptly commonly used.The hand-free call function at terminal is not opened and is closed condition at this moment; Thereby detecting unit 301 can detect said hand-free call function and close; As can detect said hand-free call function through the non-hand-free call request of the unlatching at terminal and close; This moment, control unit 302 can be opened first microphone and non-outgoing loudspeaker, promptly only used said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker to carry out non-hand-free call.
If the user in the process of carrying out hand-free call, carries out non-hand-free call according to the actual conditions needs.This moment, the user can trigger non-hand-free call function of opening the terminal or the hand-free call function that triggering is closed a terminal, to get into non-hand-free call, as clicking the non-hand-free call function key at terminal.The terminal can be triggered the initiation non-hand-free call request of unlatching or triggered and initiate to close the hand-free call request at this moment; Detecting unit 301 can or be closed the hand-free call request detection and close to said hand-free call function according to the non-hand-free call request of said unlatching; This moment, control unit 302 can carry out four operations: close second microphone, close said outgoing loudspeaker, open first microphone, open non-outgoing loudspeaker, promptly only use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker to carry out non-hand-free call.Said four operate in certain hour at interval within successively or carry out simultaneously, but the embodiment of the invention does not limit for the execution sequence of four operations.Preferably; Open first microphone after closing outgoing loudspeaker in said four steps; For example can be according to closing second microphone, closing outgoing loudspeaker; Open first microphone, open non-outgoing loudspeaker and carry out successively, also can be according to closing outgoing loudspeaker, close second microphone, open non-outgoing loudspeaker, opening first microphone etc. and carry out successively.
Certainly, the user also possibly need carry out hand-free call for some reason in the process of carrying out non-hand-free call.This moment, the user can trigger the hand-free call function of opening the terminal, as clicking the hand-free call function key at terminal.The terminal can be triggered and initiated to open the hand-free call request this moment; Detecting unit 301 can be opened to said hand-free call function according to said unlatching hand-free call request detection; This moment, control unit 302 can carry out four operations: close first microphone, close non-outgoing loudspeaker, open second microphone, open outgoing loudspeaker; Promptly only use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker, carry out hand-free call; Make like this with the first nearer microphone of outgoing loudspeaker spacing and be in closed condition; Use and outgoing loudspeaker spacing second microphone far away; Because the spacing of said second microphone and said outgoing loudspeaker can not cause the acoustic crosstalk of said outgoing loudspeaker and said second microphone; Thereby effectively prevent the acoustic crosstalk of outgoing loudspeaker and microphone when carrying out hand-free call, said microphone comprises said first, second microphone.
Above-mentioned four operate in certain hour at interval within successively or carry out simultaneously, but the embodiment of the invention does not limit for the execution sequence of four operations.Preferably; Closed first microphone before opening outgoing loudspeaker in said four steps; For example can be according to closing first microphone, close non-outgoing loudspeaker, open second microphone, opening outgoing loudspeaker and carry out successively, also can be according to closing non-outgoing loudspeaker, close first microphone, open loud speaker, opening second microphone etc. and carry out successively.
Further, said control unit 302 also is used for when end of conversation, and said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed.
Concrete, end of conversation can have following several kinds of scenes:
A kind of scene is the conversation that is through with of user's end of conversation key of triggering terminal when carrying out hand-free call.What the user used when carrying out hand-free call is second microphone and outgoing loudspeaker, and the non-outgoing loudspeaker and first microphone are closed, and second microphone and outgoing loudspeaker are opened.So control unit 302 need be closed second microphone and outgoing loudspeaker when end of conversation, thereby makes that said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed when end of conversation.
Second kind of scene is the conversation that is through with of user's end of conversation key of triggering terminal when carrying out non-hand-free call.What the user used when carrying out non-hand-free call is that the non-outgoing loudspeaker and first microphone are closed, and second microphone and outgoing loudspeaker are closed, and the non-outgoing loudspeaker and first microphone are opened.So control unit 302 need be closed the non-outgoing loudspeaker and first microphone when end of conversation, thereby makes that said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed when end of conversation.
Also having a kind of scene is that the other side's incoming call is received at the terminal; But phone is connected in inconvenience for a certain reason; This moment, the user directly clicked the end of conversation key end conversation at terminal, because the access failure phone is so control unit 302 need make said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker be in closed condition always.
In an embodiment provided by the present invention; As shown in Figure 4; When said terminal was mobile phone, said first microphone 41 and said outgoing loudspeaker 43 were positioned at the bottom of said mobile phone, and said second microphone 42 and non-outgoing loudspeaker 44 are positioned at the top of said mobile phone.Wherein, first microphone 41 is used for when the user carries out non-hand-free call, picking up user's sound and user's sound is transferred to the other side through communication network, and non-outgoing loudspeaker 44 is used for when the user carries out non-hand-free call, giving the user with the other side's transfer voice; Second microphone 42 is used for when the user carries out hand-free call, picking up user's sound and user's sound is transferred to the other side through communication network, and outgoing loudspeaker 43 is used for when the user carries out hand-free call, giving the user with the other side's sound playing.The particular location of said first microphone 41, second microphone 42 and outgoing loudspeaker 43 can change, and only needs to guarantee that said first microphone 41 and the spacing of said outgoing loudspeaker 43 get final product less than the spacing of said second microphone 42 with said loud speaker 43.When carrying out hand-free call, can close first microphone 41 nearer like this with outgoing loudspeaker 43 spacings, use with outgoing loudspeaker 43 spacings far away second microphone 42.Because said second microphone 42 is far away with the spacing of said outgoing loudspeaker 43, thereby can effectively prevent the acoustic crosstalk of outgoing loudspeaker and microphone.
Need to prove that first microphone described in the embodiment of the invention can be a microphone, also can be a plurality of microphones, and described first microphone is the said outgoing loudspeaker of distance all microphones very near, that can produce acoustic crosstalk.Described second microphone can be a microphone; Also can be a plurality of microphones; Described second microphone is the said outgoing loudspeaker of distance all microphones far away, that can not produce acoustic crosstalk or crosstalk less, and the spacing of said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker.The number of said microphone can be set as the case may be, does not limit at this.When the terminal detects the unlatching of hand-free call function, all first microphones be will close, one or more second microphones and outgoing loudspeaker arbitrarily opened; Close and converse when not finishing detecting the hand-free call function, all second microphone and outgoing loudspeakers can be closed in the terminal, open one or more first microphones arbitrarily.Need to prove that also the number of outgoing loudspeaker described in this paper and non-outgoing loudspeaker can be for one or more.
The embodiment of the invention provides a kind of terminal that prevents that outgoing loudspeaker and microphone voice from crosstalking, and through behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens; And when said hand-free call function is opened, use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; Close and converse when not finishing in said hand-free call function, use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker.The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; Make user's said outgoing loudspeaker of service range when carrying out hand-free call said second microphone far away, effectively prevented the acoustic crosstalk of outgoing loudspeaker and microphone.Said terminal need not be provided with the safe distance of said first microphone and said outgoing loudspeaker, thereby has improved the degree of freedom of outgoing loudspeaker and microphone design; Also need not reduce the performance of the microphone and the outgoing loudspeaker at terminal, thereby guarantee the performance of the microphone and the outgoing loudspeaker at terminal, promote user's experience; Also need not take special circuit and software algorithm, thereby provide cost savings and power consumption.
At last; Also need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (9)
1. a method that prevents that outgoing loudspeaker and microphone voice from crosstalking is characterized in that, comprising:
Behind the connecting incoming call of terminal, whether the hand-free call function of sense terminals opens;
If said hand-free call function is opened, then use said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; So that the user uses said second microphone and said outgoing loudspeaker when carrying out hand-free call, thereby prevent the acoustic crosstalk of said outgoing loudspeaker and said first microphone.
2. method according to claim 1 is characterized in that, and is said if said hand-free call function is opened, and then uses said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker to comprise:
If said hand-free call function is opened, and said first microphone, non-outgoing loudspeaker be in opening, then closes said first microphone, non-outgoing loudspeaker, uses said second microphone and said outgoing loudspeaker.
3. method according to claim 1 and 2 is characterized in that, also comprises:
If said hand-free call function is closed and conversed and do not finish, then use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker; So that said user uses said first microphone and said non-outgoing loudspeaker to carry out non-hand-free call.
4. according to claim 1 or 2 or 3 arbitrary described methods, it is characterized in that, also comprise:
Behind the end of conversation, said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed.
5. a terminal is characterized in that, comprising:
Detecting unit is used for behind the connecting incoming call of terminal, and whether the hand-free call function of sense terminals opens;
Control unit is used for when said hand-free call function is opened, using said second microphone and said outgoing loudspeaker in first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker;
The spacing of wherein said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker; So that thereby the user uses said second microphone and said outgoing loudspeaker to prevent the acoustic crosstalk of said outgoing loudspeaker and said first microphone when carrying out hand-free call.
6. terminal according to claim 5; It is characterized in that said control unit specifically is used for; Open in said hand-free call function; And said first microphone, when non-outgoing loudspeaker is in opening, close said first microphone, non-outgoing loudspeaker, use said second microphone and said outgoing loudspeaker.
7. according to claim 5 or 6 described terminals; It is characterized in that; Said control unit; Also be used for closing and conversing when not finishing, use said first microphone and said non-outgoing loudspeaker in said first microphone, non-outgoing loudspeaker, second microphone and the outgoing loudspeaker in said hand-free call function; So that said user uses said first microphone and said non-outgoing loudspeaker to carry out non-hand-free call.
8. according to claim 5 or 6 or 7 described terminals, it is characterized in that said control unit also is used for behind end of conversation, said first microphone, second microphone, outgoing loudspeaker and non-outgoing loudspeaker are all closed.
9. according to the arbitrary described terminal of claim 5-8; It is characterized in that; When said terminal is mobile phone; If said first microphone and said outgoing loudspeaker are positioned at the bottom of said mobile phone, then said second microphone is positioned at the top of said mobile phone, so that the spacing of said first microphone and said outgoing loudspeaker is less than the spacing of said second microphone and said outgoing loudspeaker.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100501400A CN102624961A (en) | 2012-02-29 | 2012-02-29 | Method and terminal for preventing sound crosstalk between external loudspeaker and microphone |
| PCT/CN2013/071679 WO2013127302A1 (en) | 2012-02-29 | 2013-02-20 | Method and terminal for preventing voice crosstalk between external loudspeaker and microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100501400A CN102624961A (en) | 2012-02-29 | 2012-02-29 | Method and terminal for preventing sound crosstalk between external loudspeaker and microphone |
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| Publication Number | Publication Date |
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| CN102624961A true CN102624961A (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100501400A Pending CN102624961A (en) | 2012-02-29 | 2012-02-29 | Method and terminal for preventing sound crosstalk between external loudspeaker and microphone |
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| Country | Link |
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| CN (1) | CN102624961A (en) |
| WO (1) | WO2013127302A1 (en) |
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| 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 |
| CN104199634A (en) * | 2014-08-18 | 2014-12-10 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104618570A (en) * | 2013-10-22 | 2015-05-13 | 诺基亚公司 | Audio capture with multiple microphones |
| CN105450880A (en) * | 2015-11-12 | 2016-03-30 | 广东欧珀移动通信有限公司 | Speech signal processing method and speech signal processing device |
| 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 |
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| CN104618570B (en) * | 2013-10-22 | 2018-06-29 | 诺基亚技术有限公司 | The audio capturing of multi-microphone |
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| CN106448672B (en) * | 2016-10-27 | 2020-07-14 | Tcl通力电子（惠州）有限公司 | Sound system and control method |
| CN106791131A (en) * | 2016-12-28 | 2017-05-31 | 广东欧珀移动通信有限公司 | Control method and control device |
| WO2018166087A1 (en) * | 2017-03-14 | 2018-09-20 | 华为技术有限公司 | Terminal call method and terminal |
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| WO2013127302A1 (en) | 2013-09-06 |
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