CN201066905Y - Dual-mode mobile phone with voice switching circuit - Google Patents
Dual-mode mobile phone with voice switching circuit Download PDFInfo
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- CN201066905Y CN201066905Y CNU2007200248021U CN200720024802U CN201066905Y CN 201066905 Y CN201066905 Y CN 201066905Y CN U2007200248021 U CNU2007200248021 U CN U2007200248021U CN 200720024802 U CN200720024802 U CN 200720024802U CN 201066905 Y CN201066905 Y CN 201066905Y
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Abstract
The utility model discloses a two-mode mobile phone with a speech switching circuit, which comprises a main control system, a slave control system, a speech output module and a gating module. Two groups of alternate channels of the gating module are respectively connected with speech signal output ends of the main control system and the slave control system correspondingly; a public end is connected with the speech output module, and a gating control end receives gating signals sent from one of the main control system or the slave control system. The utility model adds gating switching circuits on the periphery of speech pathways of the main control system and the slave control system in the two-mode mobile phone. When the main control system is called, the connection pathway between the main control system and the speech output module and a microphone input module are automatically gated. And when the slave control system is called, the slave control system is automatically connected with the speech output module and the microphone input module. Thus, the speech switching function between the two systems in the two-mode mobile phone is realized, the stability and the reliability of the system are effectively improved, and the calling quality is guaranteed.
Description
Technical field
The utility model belongs to the mobile communication equipment technical field, specifically, relates to a kind of being applicable to and realize the control circuit that voice signal switches in the bimodulus cell phone between dual system.
Background technology
Along with improving constantly of the progress of society, people's living standard, the single mode mobile telephone system can not satisfy society and the people growing needs of living.Based on this, a kind of dual-mode mobile phone arises at the historic moment.As its name suggests, so-called " bimodulus " is exactly to be operated under two network schemers, and these two network schemers can be GSM network and cdma network or two GSM networks or the like.If mobile phone can be supported two network schemers simultaneously, so just claim that such mobile phone is a dual-mode handset.Because dual-mode handset is supported two network schemers simultaneously, therefore, its inside need be provided with two cover systems: a cover master control system (also claiming the master control platform), one cover is from control system (also claiming assistance platform), be provided with a mobile phone card in two cover systems separately, mobile phone can be worked alone under two network schemers, to improve the reliability of mobile communication.
In bimodulus cell phone system, effectively the voice switching mode can improve the stability and the reliability of system, thereby realizes the reliable phonetic function of high-quality.But, how to realize that the reliable switching of voice signal between dual system is the subject matter that dual-mode handset manufacturer is devoted to solve at present always.Particularly present dual-mode handset does not generally dispose Bluetooth function, and therefore, Bluetooth function how to realize the dual system voice signal is a bottleneck in the dual-mode handset design process especially.
A kind of effective solution that the technology contents that the utility model disclosed proposes for the voice switching problem that solves described dual-mode handset just.
The utility model content
The purpose of this utility model is to provide the commutation circuit of the voice between a kind of dual system, to satisfy the reliable switching of voice signal between two systems, realizes the reliable phonetic function of high-quality.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of dual-mode handset with voice commutation circuit, comprise master control system, from control system, voice output module and gating module, two groups of alternative passages of described gating module respectively with described master control system with from the control system corresponding connection of voice signal output, common port connects described voice output module, and the gating control end receives from master control system or the gating signal sent from one of control system.
In described voice output module, include earphone output module and receiver output module, when having earphone to insert, cut off receiver output automatically, the voice signal that receives is exported by earphone; And fashionable in the earless machine transplanting of rice, the voice signal that mobile phone receives is exported from earpiece automatically.
Further, also include bluetooth module in described voice output module, its voice signal input connects the common port of described gating module, and the voice signal that receives is wirelessly sent to bluetooth earphone.
Wherein, in described gating module, include two gating elements, two groups of alternative passages of the first gating element respectively with described master control system and corresponding connection of earphone voice signal output, common port connection earphone output module and/or bluetooth module from the control system; Two groups of alternative passages of the second gating element respectively with described master control system and corresponding connection of receiver voice signal output, common port connection receiver output module from the control system.
Further again, in every group of alternative pathway of the described first gating element, include two switching branches at least, respectively with described master control system or from the control system L channel earphone voice signal output and R channel earphone voice signal corresponding connection of output, one group of left and right sound channels earphone voice signal that its common port will be chosen transfers to earphone output module and/or bluetooth module.In every group of alternative pathway of the described second gating element, include two switching branches at least, respectively with described master control system or from the control system the corresponding connection of receiver difference voice signal output, one group of difference voice signal that its common port will be chosen transfers to the receiver output module.
Further again, in described dual-mode handset, the voice signal of introducing by microphone circuit respectively with master control system and corresponding connection of microphone voice signal input from the control system.Specifically, the voice signal of described microphone circuit output is a differential signal, respectively with master control system and microphone difference voice signal corresponding connection of input from the control system.
Further, in described dual-mode handset, also include the 3rd gating element, the alternative passage of its two-way receives the voice signal from wired earphone Mike and bluetooth earphone Mike input respectively, under the control of master control system or the gating signal sent from one of control system, select one road voice signal wherein to transfer to described master control system or from the earphone Mike input of control system.
Specifically, in described dual-mode handset, bluetooth module receives the voice signal of described bluetooth earphone Mike input, connect both-end commentaries on classics single-ended signal change-over circuit after generating the difference voice signal, with the wherein one tunnel alternative passage of difference two-way conversion of signals described the 3rd gating element for the single channel analog signal connects; The alternative passage in another road of described the 3rd gating element connects the microphone voice signal input of wired earphone, the road voice signal that the output of its common port is chosen converts that differential signal connects described master control system to or from the earphone Mike differential signal input of control system through a single-ended commentaries on classics double-end signal change-over circuit.
Compared with prior art, advantage of the present utility model and good effect are: the utility model is by setting up the gating commutation circuit in the master control system of dual-mode handset inside with from each voice pathway periphery of control system, when master control system is called out, the connecting path between automatic gating master control system and voice output module, the Mike's input module; And when the control system is called out, automatically switch to from the control system and be connected with voice output module, Mike's input module, thereby realized the voice handoff functionality between the dual system in the dual-mode handset, effectively improved the stability and the reliability of system, guaranteed speech quality.Moreover, by in dual-mode handset, increasing bluetooth module, and match, thereby realized the Bluetooth function of dual-mode handset with described gating commutation circuit.
Description of drawings
Fig. 1 is the circuit theory diagrams of wherein a kind of embodiment of the voice commutation circuit that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present utility model is done explanation in further detail.
Common single mode mobile phone generally all includes earphone voice output path, receiver voice output path and microphone phonetic entry path.In order to realize the voice handoff functionality of dual-mode mobile phone, the form that the gating commutation circuit is set up in each the voice pathway periphery between two system platforms of the utility model employing in the dual-mode handset circuit realizes the gating handoff functionality of voice signal between two system platforms.Concrete structure is two system platforms at dual-mode handset---master control system with from the peripheral gating module that is connected of the voice signal output of control system, the gating control end of described gating module receives from master control system or the gating signal sent from one of control system, and according to the high/low level state of described gating signal, selecting wherein, one group of alternative passage is connected with its common port, and then the voice output module in the mobile phone circuit is connected with called system platform automatically, to realize the voice communication of this system platform.
Embodiment one, as shown in Figure 1, present embodiment has specifically exemplified a kind of concrete structure that is applicable to the dual system voice commutation circuit of dual-mode handset circuit, comprise two gating element S_1, S_2, select to switch to master control system with from the earphone voice output and the receiver voice output of control system respectively.
As shown in Figure 1, described gating element S_1, S_2 should specifically select to include at least the gating device that includes two switching branches in two groups of alternative passages and the every group of alternative passage at least and realize, as switching devices such as integrated switch chip, relays.Wherein, corresponding respectively left and right sound channels earphone voice signal output HEAD_1_L, the HEAD_1_R that connects master control system M_1 of two switching branches of the first alternative passage of gating element S_1; Two switching branches of the second alternative passage respectively with from the control M_2 of system left and right sound channels earphone voice signal output HEAD_2_L, the corresponding connection of HEAD_2_R, common port connects the left and right sound channels phonetic entry end of wired earphone, and its gating control end receives from described master control system M_1 or from controlling the gating signal that the M_2 of system sends.When master control system M_1 is called out, select the first alternative passage to be connected with its common port; And, then switching to the second alternative passage to be connected with its common port when being called out from the control M_2 of system, thereby realization is exported by earphone by the voice signal of calling system.In like manner, the corresponding respectively receiver difference voice signal output RECEIVER1 that connects master control system M_1 of two switching branches of the first alternative passage of gating element S_2; Two switching branches of the second alternative passage respectively with the corresponding connection of receiver difference voice signal output RECEIVER2 from the control M_2 of system, difference voice signal input N, the P of common port connection receiver RECEIVER.The high/low level gating signal that described gating element S_2 receives according to its gating control end, selecting wherein, one tunnel alternative passage is connected with its common port, and then the voice signal that called system platform is received is by earpiece RECEIVER output, to realize the switching output of receiver voice signal between two system platforms.Described gating signal can be sent by master control system M_1, can also specifically should select to switch to by calling system and be connected with receiver RECEIVER by sending from the control M_2 of system.Described gating signal specifically can be selected to be realized by master control system M_1 or the central processing unit chip output from the control M_2 of system in the present embodiment.
Certainly, in order to realize that the voice output passage selects to switch in receiver and earphone two paths, in the dual-mode handset circuit of present embodiment, equally also be provided with earphone and insert testing circuit, when having earphone to insert, automatically be cut to receiver output, the voice signal that receives is exported by earphone; And fashionable in the earless machine transplanting of rice, the voice signal that mobile phone receives is exported from earpiece automatically.Described testing circuit can adopt the inner earphone commonly used of present single mode mobile phone to insert testing circuit and realize, because this circuit structure is those of ordinary skills' a known technology, therefore, present embodiment does not launch to describe in detail at this.
Among Fig. 1, the voice signal that receives by mobile phone Mike by microphone circuit MIC be converted into differential signal respectively with master control system M_1 with from the microphone difference voice signal input MIC1 of the control M_2 of system, MIC2 is corresponding is connected, with the user speech that receives transfer to master control system M_1 or from the control M_2 of system, specifically should receive, can adopt the mode of opening its microphone difference voice signal input channel, blocking-up when not called out when only being called out to realize that user speech is only by the purpose that is received by calling system in system by called system.After by calling system M_1 or M_2 the voice signal that receives being handled, launch, receive for the other side by antenna for mobile phone; The voice signal that receives for self then after its internal circuit is handled, is exported through wired earphone or receiver RECEIVER by gating element S_1 or S_2, thereby has been realized the effective switching of voice signal between dual system.
Simultaneously, in order to realize the Bluetooth function of dual-mode handset, in the dual-mode handset circuit of present embodiment, also be provided with bluetooth module M_3, its left and right sound channels voice signal output channel RECEIVER_L, RECEIVER_R connect the common port of gating element S_1 respectively, receive the left and right sound channels earphone voice signal that switches output by gating element S_1, it is handled and modulate the back give bluetooth earphone, make the user who wears described bluetooth earphone can clearly hear the other side's voice by antenna transmission.The voice signal that microphone by bluetooth earphone receives then through the bluetooth earphone internal circuit handle and modulation after, launch by the antenna on the bluetooth earphone, and then receive by described bluetooth module M_3, it is carried out generating after the demodulation process difference voice signal MIC_N, MIC_P export to described master control system M_1 by the microphone phonetic entry passage MIC3 of bluetooth module M_3 or from the control M_2 of system.Switch in order to realize the selection between bluetooth earphone and the wired earphone, in the dual-mode handset circuit of present embodiment, also be provided with the 3rd gating element S_3, its alternative pathway receives the microphone voice signal from wired earphone and bluetooth module M_3 input respectively, at master control system M_1 or under the control M_2 of the system gating signal effect of sending, selecting wherein, one road voice signal exports to by calling system.The gating device that described the 3rd gating element S_3 can adopt include two switching branches in two groups of alternative passages and the every group of alternative passage at least including at least shown in S_1 or S_2 is realized, utilize the wherein switching branches in its first group of alternative passage to be connected, receive the single channel analog voice signal of introducing by cable earphone microphone with the microphone voice signal input HEAD_MIC of wired earphone; Utilize wherein two switching branches in its second group of alternative passage to receive difference voice signal MIC_N, the MIC_P that bluetooth module M_3 exports, and then select under the effect of the high/low level controling signal that its gating control end receives wherein that one group of alternative passage is connected with its common port, transfer to master control system M_1 or from control the M_2 of system with the microphone voice signal that will choose.
Certainly, described the 3rd gating element S_3 also can adopt the gating device that only includes two alternative passages as shown in Figure 1 to realize, have the switching device of gating switch effect as single-pole double-throw switch (SPDT), relay etc., the utility model be not limited in above-mentioned for example.Because the microphone voice signal of bluetooth module M_3 output is a differential signal, in order to be converted into one-channel signal to connect wherein alternative passage of described the 3rd gating element S_3, also being provided with a both-end in the dual-mode handset circuit of present embodiment changes single-ended signal change-over circuit DTOS, and two-way differential signal MIC_N, MIC_P are converted to the alternative passage of second that single channel analog signal BT_MIC connects described the 3rd gating element S_3.The alternative passage of article one of described the 3rd gating element S_3 connects the microphone voice signal input HEAD_MIC of wired earphone, the road earphone Mike voice signal EAR_MIC that the output of its common port is chosen, and then convert by a single-ended commentaries on classics double-end signal change-over circuit STOD that the two-way differential signal is connected to master control system M_1 respectively to again and from earphone Mike differential signal input EARMIC1, the EARMIC2 of the control M_2 of system.Specifically which system platform to receive described earphone Mike voice signal EAR_MIC by, can adopt which platform just to be called out and determine that by the mode of this platform reception its specific implementation method equally also can adopt the earphone Mike differential signal input EARMIC1 of gating or blocking system platform or the mode of EARMIC2 to finish.
Described both-end changes single-ended signal change-over circuit DTOS and single-ended commentaries on classics double-end signal change-over circuit STOD can be adopted and realize in the existing single mode mobile phone with Bluetooth function that the lattice network of corresponding function realizes, because this partial content is not a key points in design of the present utility model, and this partial content also is those of ordinary skills' a known technology, therefore, the utility model does not specifically describe this.
Based on dual system voice commutation circuit schematic diagram shown in Figure 1, the concrete operation principle of present embodiment is: by default, gating element S_1 switches to its common port on the alternative passage that is connected with master control system M_1 platform with S_2; Gating element S_3 switches to its common port on the alternative passage that is connected with the microphone voice signal input HEAD_MIC of wired earphone.By default, master control system M_1 can directly realize the input and output of phonetic function.When the control M_2 of system platform is called out, send gating signal by master control system M_1 or from the control M_2 of system, gating element S_1 and S_2 are switched to the M_2 platform, thereby realize the voice signal input/output function of M_2 platform.If have outside bluetooth equipment to be connected with the dual system platform and when realizing voice communication by bluetooth module M_3, described gating element S_3 is connected its common port with its second alternative passage, thereby switch to bluetooth Mike voice signal BT_MIC, realize the wireless speech function of mobile phone.
Adopt the foregoing circuit structure, when realizing the dual-mode handset voice communication, can effectively reduce design cost, improve the speech communication quality of dual system.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (10)
1. dual-mode handset with voice commutation circuit, comprise master control system, from control system and voice output module, it is characterized in that: in described dual-mode handset, also include the gating module, two groups of alternative passages of described gating module respectively with described master control system with from the control system corresponding connection of voice signal output, common port connects described voice output module, and the gating control end receives from master control system or the gating signal sent from one of control system.
2. dual-mode handset according to claim 1 is characterized in that: include earphone output module and receiver output module in described voice output module, when having earphone to insert, cut off receiver output automatically.
3. dual-mode handset according to claim 1 is characterized in that: include bluetooth module in described voice output module, its voice signal input connects the common port of described gating module, and the voice signal that receives is wirelessly sent to bluetooth earphone.
4. according to claim 1 or 2 or 3 described dual-mode handsets, it is characterized in that: in described gating module, include two gating elements, two groups of alternative passages of the first gating element respectively with described master control system and corresponding connection of earphone voice signal output, common port connection earphone output module and/or bluetooth module from the control system; Two groups of alternative passages of the second gating element respectively with described master control system and corresponding connection of receiver voice signal output, common port connection receiver output module from the control system.
5. dual-mode handset according to claim 4, it is characterized in that: in every group of alternative pathway of the described first gating element, include two switching branches at least, respectively with described master control system or from the control system L channel earphone voice signal output and R channel earphone voice signal corresponding connection of output, one group of left and right sound channels earphone voice signal that its common port will be chosen transfers to earphone output module and/or bluetooth module.
6. dual-mode handset according to claim 4, it is characterized in that: in every group of alternative pathway of the described second gating element, include two switching branches at least, respectively with described master control system or from the control system the corresponding connection of receiver difference voice signal output, one group of difference voice signal that its common port will be chosen transfers to the receiver output module.
7. dual-mode handset according to claim 4 is characterized in that: in described dual-mode handset, include microphone circuit, the voice signal of introducing by microphone circuit respectively with master control system and corresponding connection of microphone voice signal input from the control system.
8. dual-mode handset according to claim 7 is characterized in that: the voice signal of described microphone circuit output is a differential signal, respectively with master control system and microphone difference voice signal corresponding connection of input from the control system.
9. according to claim 1 or 2 or 3 described dual-mode handsets, it is characterized in that: in described dual-mode handset, also include the 3rd gating element, the alternative passage of its two-way receives the voice signal from wired earphone Mike and bluetooth earphone Mike input respectively, under the control of master control system or the gating signal sent from one of control system, select one road voice signal wherein to transfer to described master control system or from the earphone Mike input of control system.
10. dual-mode handset according to claim 9, it is characterized in that: in described dual-mode handset, bluetooth module receives the voice signal of described bluetooth earphone Mike input, connect both-end commentaries on classics single-ended signal change-over circuit after generating the difference voice signal, with the wherein one tunnel alternative passage of difference two-way conversion of signals described the 3rd gating element for the single channel analog signal connects; The alternative passage in another road of described the 3rd gating element connects the microphone voice signal input of wired earphone, the road voice signal that the output of its common port is chosen converts that differential signal connects described master control system to or from the earphone Mike differential signal input of control system through a single-ended commentaries on classics double-end signal change-over circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200248021U CN201066905Y (en) | 2007-07-03 | 2007-07-03 | Dual-mode mobile phone with voice switching circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200248021U CN201066905Y (en) | 2007-07-03 | 2007-07-03 | Dual-mode mobile phone with voice switching circuit |
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| CN201066905Y true CN201066905Y (en) | 2008-05-28 |
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| CNU2007200248021U Expired - Fee Related CN201066905Y (en) | 2007-07-03 | 2007-07-03 | Dual-mode mobile phone with voice switching circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468874A (en) * | 2010-11-18 | 2012-05-23 | 西安龙飞软件有限公司 | Bluetooth realization mode for dual-mode phone |
| CN109413526A (en) * | 2018-09-30 | 2019-03-01 | Oppo广东移动通信有限公司 | Headset control method, device, electronic equipment and storage medium |
| CN112073776A (en) * | 2019-06-10 | 2020-12-11 | 海信视像科技股份有限公司 | Voice control method and display device |
-
2007
- 2007-07-03 CN CNU2007200248021U patent/CN201066905Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468874A (en) * | 2010-11-18 | 2012-05-23 | 西安龙飞软件有限公司 | Bluetooth realization mode for dual-mode phone |
| CN109413526A (en) * | 2018-09-30 | 2019-03-01 | Oppo广东移动通信有限公司 | Headset control method, device, electronic equipment and storage medium |
| CN112073776A (en) * | 2019-06-10 | 2020-12-11 | 海信视像科技股份有限公司 | Voice control method and display device |
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Granted publication date: 20080528 Termination date: 20110703 |