CN201682546U - Conversation adapter - Google Patents

Conversation adapter Download PDF

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Publication number
CN201682546U
CN201682546U CN200920277517XU CN200920277517U CN201682546U CN 201682546 U CN201682546 U CN 201682546U CN 200920277517X U CN200920277517X U CN 200920277517XU CN 200920277517 U CN200920277517 U CN 200920277517U CN 201682546 U CN201682546 U CN 201682546U
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China
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circuit
relay
bluetooth
telephone
triode
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CN200920277517XU
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Chinese (zh)
Inventor
孙毅
宋翊麟
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Institute of Computing Technology of CAS
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Institute of Computing Technology of CAS
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Abstract

The utility model provides a conversation adapter which comprises a telephone wire interface circuit, an off-hook circuit, a ringing circuit, a voice processing circuit, a power supply control circuit, a Bluetooth circuit and a calling party identifying and detecting circuit. The telephone wire interface circuit is used for connecting a telephone set; the off-hook circuit, the ringing circuit and the voice processing circuit are respectively connected with the telephone wire interface circuit; the Bluetooth circuit is connected with the voice processing circuit, and is used for transferring conversation information; the Bluetooth circuit also respectively provides control signals for the off-hook circuit, the ringing circuit and the power supply control circuit; and the calling party identifying and detecting circuit connected with the Bluetooth circuit is used for providing an incoming call status signal for the Bluetooth circuit when detecting an incoming call. The conversation adapter can realize bidirectional call forwarding, does not force the telephone set to connect a PSTN network, and can be used matching with a personal computer.

Description

The conversation adapter
Technical field
The utility model relates to a kind of wireless telecommunications system, and specifically, the utility model relates generally to a kind of conversation adapter that mobile phone communication is transferred to base.
Background technology
The widely-used life that greatly facilitates people of mobile phone.Yet, wireless product intrinsic electromagnetic radiation characteristic cellphone subscriber healthy caused great potential hazard.Studies show that mobile phone radiation can be carcinogenic, can encourage growth of tumour cell, can make us long-term memory loss, damage brain cell, cause senile dementia.Experience shows that most cellphone subscribers will be considerably beyond the time of outdoor activity in the time of indoor activity, and they exist one one or multi-section landline telephone at one's side more or less.Therefore, will significantly reduce the infringement of electromagnetic radiation of mobile telephone if the mobile phone communication of indoor user can be transferred on the base to user's body health.
At present, more common solution is the incoming call transfer service that telecom operators release on the market.This scheme is to forward the incoming call on the mobile phone to fixed telephone network to dial corresponding base, thus realize the function of the calls transfer on the mobile phone to base.There is following defective in this scheme:
1. can only realize the call forwarding of cell phone incoming call, then can't operate with base for the phone that mobile phone is initiatively transferred to;
2. base need connect PSTN (Public Switched Telephone Network, i.e. public switched telephone network) network and could realize call forwarding;
3. the conversation after the switching need additionally take the resource of PSTN network, and will produce extra service fee;
4. can not be used with PC, realize the calling transfer of the networking telephone.
Summary of the invention
The purpose of this utility model provides and a kind of mobile phone communication is transferred to wireless telecommunications system on the base.
For achieving the above object, the utility model provides a kind of conversation adapter, comprising: telephone line interface circuit, circuit for answering, ringing circuit, speech processing circuit, power control circuit, Bluetooth circuit and caller identification testing circuit; Described telephone line interface circuit is used to connect Telephone set, and described circuit for answering, ringing circuit, described speech processing circuit are connected with described telephone line interface circuit respectively; Described Bluetooth circuit is connected with described speech processing circuit, is used for forwarding conversation information, and described Bluetooth circuit also is respectively described circuit for answering, described ringing circuit and described power control circuit control signal corresponding is provided; Described caller identification testing circuit is connected with described Bluetooth circuit, and being used for provides the incoming call status signal for described Bluetooth circuit when detecting incoming call.
Wherein, described telephone line interface circuit also is used to connect fixed telephone network, described conversation adapter also comprises state detection circuit and phone commutation circuit, described state detection circuit is used to detect Telephone set and is in off hook state or is in hook state, and described state detection circuit provides the status signal of Telephone set for described Bluetooth circuit; Described phone commutation circuit is used to carry out the switching between the interior and exterior lines of Telephone set, the control signal that described Bluetooth circuit provides internal and external line to switch for described phone commutation circuit; Described speech processing circuit is connected with described telephone line interface circuit by described phone commutation circuit.
Wherein, described conversation adapter also comprises the man-machine interface circuit, and described man-machine interface circuit is connected with described Bluetooth circuit.
Wherein, described Bluetooth circuit is connected with described speech processing circuit by pcm bus.
Wherein, described ringing circuit comprises first relay circuit and second relay circuit;
Described first relay circuit comprises the first double-pole single-throw (D.P.S.T.) relay, and one of them switch ends of the described first double-pole single-throw (D.P.S.T.) relay connects RING1 holding wire and ground respectively, and another switch ends connects TIP1 holding wire and power supply respectively;
Described second relay circuit comprises the second double-pole single-throw (D.P.S.T.) relay, and one of them switch ends of the described second double-pole single-throw (D.P.S.T.) relay connects RING1 holding wire and power supply respectively, and another switch ends connects TIP1 holding wire and ground respectively;
Described first, second double-pole single-throw (D.P.S.T.) relay is by ring control signal RingC control break-make, and described ring control signal RingC is a square-wave signal.
Wherein, described first relay circuit comprises that also first break-make control triode and ring control signal insert triode; Described first break-make control of the coil tandem of described first double-pole single-throw (D.P.S.T.) relay triode, the base stage of first break-make control triode is used to import off-hook control signal Pick and described ring control signal RingC, wherein ring control signal RingC is connected with the base stage that described ring control signal inserts triode, and inserts the base stage that triode exports first break-make control triode to by described ring control signal.
Wherein, described second relay circuit also comprises second break-make control triode; Described second break-make control of the coil tandem of described second double-pole single-throw (D.P.S.T.) relay triode, the base stage of described second break-make control triode is used to import described ring control signal RingC.
Compared to prior art, the utlity model has following beneficial effect:
1. realize two-way call forwarding, receive or the phone transferred to can be operated by base for mobile phone;
2. do not force base to link to each other with the PSTN network, base only need connect the conversation adapter just can realize call forwarding;
3. can not take the resource of PSTN network during call forwarding, the call forwarding service is free fully;
4. can be used with PC, realize the calling transfer of the networking telephone;
5. simple to operate, the user only needs to carry out an initial setting up will converse adapter and handset binding, and after this user enters at every turn or withdraws from a room, and the call forwarding service will be opened or close to the conversation adapter automatically, need not user's operation.
Description of drawings
Fig. 1 is the schematic diagram of an application scenarios of the utility model;
Fig. 2 is the circuit block diagram of an embodiment of the utility model;
Fig. 3 is the electrical block diagram of an embodiment of the utility model; Wherein,
Fig. 3 a is the circuit diagram of circuit for answering;
Fig. 3 b is the circuit diagram of ringing circuit;
Fig. 3 c is the circuit diagram of sound-compound-circuit;
Fig. 3 d is the circuit diagram of sound circuit;
Fig. 3 e is the circuit diagram of CID testing circuit;
Fig. 3 f is the circuit diagram of power supply circuits;
Fig. 3 g is the circuit diagram of Bluetooth circuit;
Fig. 3 h is the circuit diagram of 48V booster circuit;
Fig. 3 i is the circuit diagram of phone commutation circuit, state detection circuit, telephone line interface circuit and man-machine interface circuit;
Fig. 4 is the work-based logic flow chart of the phone of an embodiment of the utility model when inserting;
Fig. 5 is the work-based logic flow chart of the phone of an embodiment of the utility model when breathing out.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done description further.
As shown in Figure 1, operation principle of the present utility model is that the conversation adapter is linked to each other with base, and setting up bluetooth between mobile phone and conversation adapter connects, when mobile phone is received new calling, it can send incoming information to the conversation adapter by bluetooth, by the conversation adapter incoming information and bell signal are sent to the base that links to each other then, the user can use base answering cell phone incoming call behind the base jingle bell.Conversation adapter of the present utility model does not produce any added communications expense, and the expense that is produced is identical with the expense of directly using the mobile phone incoming call answering to be produced.In addition, utilize the utility model, the user can also use base to replace handset dialing (promptly carrying out caller) and conversation, speech will be by mobile radio communication (2G/3G) but not fixed telephone network (PSTN) transmit.When replacing the mobile phone caller, the user on base according to AD HOC Outgoing Number (for example dial earlier " * " number key, the number that needs calling is and then dialled in the back, at last with " # " bond bundle); After the conversation adapter captures the caller incident,, be sent to mobile phone by blue tooth interface if the number that discovery is called out with the AD HOC input, then extracts the number that needs calling; Mobile phone is initiated call request subsequently, and ring-back tone in the call request process and speech data are sent to the conversation adapter by bluetooth, and then by the conversation adapter ring-back tone and voice is sent on the base that is attached thereto.In the whole caller process, the user can dial mobile phone communication by base, and the expense that is produced is with directly use mobile phone dialing phone is identical, and the conversation adapter does not produce any added communications expense.In addition, conversation adapter of the present utility model can also be set up bluetooth with PC and be connected, when the user receives the Internet telephone calls that arrives on the internet, catch the incoming call incident by the plug-in unit of installing on computers earlier, communicate by blue tooth interface and conversation adapter again, and then be sent to the incoming information of the networking telephone on the base that is attached thereto and the base ring is answered with the prompting user by the conversation adapter.This moment, the user can answer networking telephone incoming call by base, and the expense that is produced is identical with the expense of directly using networking telephone incoming call answering to be produced, and the conversation adapter does not produce any added communications expense.
Fig. 2 shows the circuit block diagram of an embodiment of the present utility model.As shown in Figure 2, the conversation adapter of this embodiment comprises seven electronic circuits, is respectively: telephone line interface circuit, CID ( Caller IDentification, promptly Caller identification) testing circuit, phone front end interface circuit, speech processing circuit, power control circuit, Bluetooth circuit and man-machine interface circuit.
Wherein, the telephone line interface circuit function is to realize telephone signal input, output and protection, comprises outside line access interface, intercommunication phone connectivity port and protection circuit.In the present embodiment, outside line access interface and intercommunication phone connectivity port can adopt the RJ11 interface of two dual-ports to realize that a RJ11 interface is used to connect outside line (PSTN gateway), and another RJ11 interface is used to connect interior lines (base).If two interfaces are all realized connecting, the adapter of then conversing just is equivalent to be connected between PSTN gateway and the base, this moment base dial except the extension set that can be used as mobile phone or answering cell phone conversation, still the PSTN networking telephone can be dialed or answer to a common landline telephone normally; If line interface in only connecting, the adapter of promptly conversing does not connect the PSTN gateway and only connects base, and this moment, base just was equivalent to the extension set of mobile phone, can dial or the answering cell phone conversation.Need to prove, in another embodiment, telephone line interface circuit also can only adopt a RJ11 interface, is used to connect interior lines (promptly connecting base), this conversation adapter can not insert fixed telephone network in this embodiment, but still can realize the signaling transfer point of conversing.In the present embodiment, the main effect of CID testing circuit is to realize DTMF﹠amp; FSK detects and decoding, and wherein the DTMF Chinese is a dual-tone multifrequency, and it is the abbreviation of Dual-tonemulti-frequency, and the FSK Chinese is a frequency shift keying, and it is the abbreviation of Frequency-shiftkeying.In the art, to DTMF﹠amp; The detection of fsk signal and decoding reality are exactly detection and the decoding to the caller ID signal.The phone front end interface circuit comprises that state detection circuit, circuit for answering, ringing circuit and phone commutation circuit be not (when the conversation adapter has outer line interface, state detection circuit and phone commutation circuit can be saved), be respectively applied for and realize that PSTN networking client state (off-hook/on-hook) detection, off-hook processing, ring generation and internal and external line switch.Speech processing circuit comprises sound circuit and sound-compound-circuit, realizes that mainly echo elimination, balancing circuitry change unbalanced circuit and analog voice is synthetic, and wherein echo cancellation performance also can realize by software.Power control circuit comprises power supply circuits and 48V booster circuit, is responsible for the power supply of conversation adapter.Bluetooth circuit is the core of whole conversation adapter, is used to finish the logic control of bluetooth access function and conversation adapter.Described Bluetooth circuit is connected with described speech processing circuit, is used for forwarding conversation information.Described Bluetooth circuit also is respectively described phone commutation circuit, circuit for answering, described ringing circuit and described power control circuit provides control signal to control the work of these four circuit.Described caller identification testing circuit is connected with described Bluetooth circuit, and being used for provides the incoming call status signal for described Bluetooth circuit when detecting incoming call.The man-machine interface circuit is made up of indicator light and button, is responsible for indicating operating status and mode of operation and selects.Particularly, described man-machine interface comprises two indicator lights (power supply indicator and pairing status indicator lamp) and a pairing button, and the conversation adapter enters ready state, power supply indicator Chang Liang behind the power connection; After pressing the pairing button, the conversation adapter enters the pairing state, and conversation adapter and mobile phone match, and the status indicator lamp that matches this moment is glittering.Need to prove, at some comparatively in the simple embodiment, also can default described man-machine interface circuit.
Fig. 3 shows an example of the specific implementation of each electronic circuit that constitutes the conversation adapter.Wherein, ringing circuit is the peculiar circuit of the utility model.Other circuit then can use existing known technology to realize.
The major function of ringing circuit is to be that telephone wire (comprising RING and TIP holding wire) provides bell signal when incoming call.In the middle of the bell signal standard of China's automatic telephone switching network length, city's switching equipment, the bell signal source is 25 ± 3Hz, sine wave, and harmonic distortion is not more than 10%, output voltage effective value 90 ± 15V.In the prior art, this bell signal is provided by the local side of pstn telephone network, and under the conversation Transfer Mode, because landline telephone connects the interior lines of conversation adapter and disconnects (promptly disconnecting with the PSTN network) with outside line, therefore, the bell signal that is provided by local side can't be provided landline telephone.And the equipment of the generation bell signal of local side is very complicated, be difficult to directly apply in the conversation adapter, therefore, how with the bell signal of conversation adapter simulation PSTN network, thereby be one of the utility model technical issues that need to address for landline telephone provides bell signal.
Fig. 3 b shows the circuit diagram of a ringing circuit, and this ringing circuit switches the two paths of signals line of two-wire telephone wire back and forth by two relays realizes ringer function.Shown in Fig. 3 b, wherein, RING1, TIP1 represent two holding wires in the two-wire telephone wire that is connected with interior line interface respectively.The 48V direct current signal that the R-50V representative is provided by power circuit, this signal also is the standby signal level of PSTN network under the hook state.
With reference to figure 3b, ringing circuit comprises two relay circuits, for convenient the description is called first relay circuit and second relay circuit.Wherein, first relay circuit comprises that double-pole single-throw (D.P.S.T.) relay R L7, break-make control triode Q10 and ring control signal insert triode Q17, (switch just is meant the contact of relay to one of them switch of described double-pole single-throw (D.P.S.T.) relay R L7 here, hereinafter repeat no more) two ends connect respectively the RING1 holding wire and ground, another switch ends connects TIP1 holding wire and R-50V direct current signal respectively.The coil of relay R L7 then is connected in series break-make control triode Q10.The serial connection mode is as follows: relay R L7 control pin is connected with the collector electrode of break-make control triode Q10, the grounded emitter of Q10, and base stage connects resistance R 115.Off-hook control signal Pick is connected with the base stage of break-make control triode Q10 with R115 by series resistance R114.The collector electrode that the ring control signal inserts triode Q17 is connected between series resistance R114 and the R115, and the ring control signal inserts triode Q17 grounded emitter, and base stage is connected with ring control signal RingC by resistance R 119.Off-hook control signal Pick and ring control signal RingC provide by Bluetooth circuit.Second relay circuit comprises double-pole single-throw (D.P.S.T.) relay R L3 and break-make control triode Q8.One of them switch ends of double-pole single-throw (D.P.S.T.) relay R L3 connects RING1 holding wire and R-50V direct current signal respectively, and another switch ends connects TIP1 holding wire and ground respectively.The connected mode that is relay R L3 switch is opposite with relay R L7.The coil tandem break-make control triode Q8 of relay R L3.The serial connection mode is as follows: the control pin of relay R L3 is connected with the collector electrode of break-make control triode Q8, and ring control signal RingC is connected with the base stage of break-make control triode Q8 by series resistance R80, the emitting stage ground connection of break-make control triode Q8.
Further describe the working mechanism of above-mentioned ringing circuit below.
With reference to figure 3b, for first relay circuit, during ringing circuit work, Pick keeps high level, if this moment, ring control signal RingC signal was a high level then the ring control signal inserts the current potential of triode Q17 collector electrode will be dragged down, make break-make control triode Q10 end, i.e. the collector potential of break-make control triode Q10 uprises.When being high level on the control pin of relay, the switch of relay R L7 disconnects, and is connected on the Ring1 at relay two ends respectively, Tip1 and GND (), R-50V disconnects.The opposite RingC signal of working as is that then ring control signal of low level inserts triode Q17 collector electrode maintenance high level, break-make control triode Q10 conducting, and the collector potential of break-make control triode Q10 is a low level.When appearance on the control pin of relay was low level, the coil conducting of relay R L7 was closed up the switch of relay R L7, is connected on the Ring1 on relay switch both sides respectively, Tip1 and GND, R-50V conducting.
For second relay circuit, ring control signal RingC is a high level, then break-make control triode Q8 conducting, relay R L3 conducting; The RingC low level, then break-make control triode Q8 ends, and relay R L3 disconnects.
On relay R L7 RING1 and GND are placed on one the tunnel, TIP1 and R-50V are placed on one the tunnel, on relay R L3 RING1 and R-50V are placed on one the tunnel simultaneously, and TIP1 and GND are placed on one the tunnel.Therefore, RING1 signal and ground conducting when relay R L7 conducting, TIP1 signal and R-50V conducting, relay R L3 conducting make RING1 signal and R-50V conducting, TIP1 signal and ground conducting.After the conversation adapter is received ringing instruction, the control pin RingC that drives Bluetooth circuit produces square-wave signal according to predefined signal(l)ing frequency, ringing circuit promptly can be followed the variation of ring control signal RingC, on telephone wire RING1 and TIP1, produce the bell signal of same frequency, thereby in the conversation adapter, realized ringer function.According to pstn telephone end bell signal detection universal circuit, can set this ring control signal and under the situation of zero load, be 25Hz, square wave, the peak value of output voltage are 48V.Greatly simplified the design in bell signal source with respect to the above-mentioned ringing circuit of prior art.
Some examples of the implementation of other electronic circuit are briefly described below in conjunction with Fig. 3, need to prove, the example of following electronic circuit is not unique, and those skilled in the art also can use the alternate manner in the existing known technology to realize these circuit as required.Shown in Fig. 3 a, circuit for answering comprises a relay, and the control signal of sending by Bluetooth circuit realizes plucking, the on-hook action.Fig. 3 i shows the circuit diagram of phone commutation circuit, state detection circuit, telephone line interface circuit and the man-machine interface circuit of present embodiment.Fig. 3 e shows the circuit diagram of CID testing circuit.Shown in Fig. 3 e, the CID testing circuit adopts DTMF﹠amp; The FSK detection chip, the result that the CID testing circuit will detect is connected with Bluetooth circuit by IO state mouth.More specifically, the CID testing circuit adopts the HT9170B chip, it is input as the telephone wire signal of telecommunication, be output as an interrupt signal and one of four states signal, described interrupt signal outputs to the interrupt pin of Bluetooth circuit, described one of four states signal exports Bluetooth circuit PIO pin to, is used to characterize 16 characters of DTMF, in the utility model this interrupt signal and one of four states signal is referred to as the incoming call status signal.Power supply circuits, booster circuit adopt special-purpose power supply chip.More specifically, shown in Fig. 3 f, power supply circuits adopt the XC9221 chip, provide stabilized power supply to whole system, and it is input as 9V and is output as 3.3V; Shown in Fig. 3 h, booster circuit is the 48V booster circuit, adopts the LM2586 chip, provides the PSTN network required DC power supply, and this LM2586 chip is enabled by PIO control by Bluetooth circuit.Fig. 3 c shows the circuit diagram of sound-compound-circuit.Fig. 3 d shows the circuit diagram of sound circuit, shown in Fig. 3 d, sound circuit adopts the MC145483codec chip, is connected by pcm bus (comprising clk, mosi, miso, sync four signal line) with Bluetooth circuit, and analog differential phonetic entry, output port externally are provided.Bluetooth circuit comprises a CSR BC04 chip (this chip is a kind of BT_EXFLASH chip, the i.e. Bluetooth chip of external Flash).Bluetooth circuit is the core of whole conversation adapter.Shown in Fig. 3 g, Bluetooth circuit is by PIO control 48V power supply, control circuit produces bell signal, and (level by control PIO1 pin changes the signal of telecommunication polarity on the telephone wire, produce bell signal), by PIO control LED indication mechanism state, receive the incoming call status signal that the CID testing circuit sends by PIO, by AIO (Simulation with I O pin) detecting telephone system state (off-hook/hook state), be connected with the CODEC chip by pcm bus, be used for the input and output voice signal.
As shown in Figure 4, by the conversation adapter that the work-based logic that the phone incoming call of mobile phone is forwarded to base is as follows:
S4.1: mobile phone obtains the incoming call request that mobile communications network is sent;
S4.2: the conversation adapter is received this call request, checks whether the base that is attached thereto is busy, if, enter S4.3, otherwise, S4.4 entered;
S4.3: the line is busy for conversation adapter notice mobile phone base, can't send a telegram here with the base answering cell phone, and this moment, the user can use the normal incoming call answering of mobile phone;
S4.4: the telephone circuit of conversation adapter switches to the intercommunication phone state, connect the incoming information that the reception mobile phone sends by bluetooth, simultaneously, the outer line interface of conversation adapter becomes engaged condition, if this moment, fixed line PSTN network sent the incoming call request with return busy tone to base;
S4.5: the conversation adapter sends cell phone incoming call information and ring back tone to the base that is attached thereto, and shows caller ID on the base;
S4.6: judge whether the user answers base, if do not answer, enters S4.7, otherwise, enter S4.8;
S4.7: the base ring unanswered, the conversation adapter reverts to holding state, and nobody is replied signaling connects by bluetooth and send mobile phone to;
S4.8: the base off-hook, the conversation adapter sends the signaling of user's off-hook to mobile phone by the bluetooth connection, and mobile phone begins incoming call answering, and speech data is connected between mobile phone and the conversation adapter by bluetooth and transmits;
S4.9: judge that whether conversation finishes, if finish, enters S4.10;
S4.10: the conversation adapter reverts to holding state, and sends the end of conversation signaling to mobile phone by the bluetooth connection.
As shown in Figure 5, replace the work-based logic of mobile phone outbound calling as follows by the conversation adapter with base:
S5.1: base according to special pattern dial phone number (for example dial earlier " * " number key, after connect the number that needs calling, at last with " # " bond bundle);
S5.2: the conversation adapter is received this call request, and discovery is the caller ID by AD HOC input, judges that then this calling will transmit by the mobile phone mobile network, whether inspection is busy by the mobile phone that bluetooth is attached thereto, if enter S5.3, otherwise, enter S5.4;
S5.3: the line is busy for conversation adapter notice base mobile phone, can't pass through the outgoing call of mobile phone mobile communications network, and this moment, the user can select to use the fixed telephone network of base normally to breathe out;
S5.4: the telephone circuit of conversation adapter switches to the intercommunication phone state, connect to mobile phone transmission call information by bluetooth, simultaneously, the outer line interface of conversation adapter becomes engaged condition, if this moment, fixed line PSTN network sent the incoming call request with return busy tone to base;
S5.5: the conversation adapter sends call information to the mobile phone that is attached thereto by bluetooth, shows telephone number on the mobile phone;
S5.6: mobile phone sends calling by mobile communications network, after the connection ring-back tone is sent to base by the conversation adapter, behind called subscriber's off-hook, mobile phone sends to base to off-hook information by the conversation adapter, conversation beginning, speech data are connected between mobile phone and the conversation adapter by bluetooth and transmit;
S5.7: judge that whether conversation finishes, if finish, enters S5.8;
S5.8: the conversation adapter reverts to holding state, and sends the end of conversation signaling to mobile phone by the bluetooth connection.
For the networking telephone on the PC, use the conversation adapter to realize that the work-based logic of call forwarding is identical with the conversation on the mobile phone, those of ordinary skill in the art can be realized with reference to the associated description of figure 3 and Fig. 4.
It should be noted last that above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is made amendment or is equal to replacement, the spirit and scope that do not break away from technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (7)

1. a conversation adapter is characterized in that, comprising: telephone line interface circuit, circuit for answering, ringing circuit, speech processing circuit, power control circuit, Bluetooth circuit and caller identification testing circuit; Described telephone line interface circuit is used to connect Telephone set, and described circuit for answering, ringing circuit, described speech processing circuit are connected with described telephone line interface circuit respectively; Described Bluetooth circuit is connected with described speech processing circuit, is used for forwarding conversation information, and described Bluetooth circuit also is respectively described circuit for answering, described ringing circuit and described power control circuit control signal is provided; Described caller identification testing circuit is connected with described Bluetooth circuit, and being used for provides the incoming call status signal for described Bluetooth circuit when detecting incoming call.
2. conversation adapter according to claim 1, it is characterized in that, described telephone line interface circuit also is used to connect fixed telephone network, described conversation adapter also comprises state detection circuit and phone commutation circuit, described state detection circuit is used to detect Telephone set and is in off hook state or is in hook state, and described state detection circuit provides the status signal of Telephone set for described Bluetooth circuit; Described phone commutation circuit is used to carry out the switching between the interior and exterior lines of Telephone set, the control signal that described Bluetooth circuit provides internal and external line to switch for described phone commutation circuit; Described speech processing circuit is connected with described telephone line interface circuit by described phone commutation circuit.
3. conversation adapter according to claim 1 is characterized in that, described conversation adapter also comprises the man-machine interface circuit, and described man-machine interface circuit is connected with described Bluetooth circuit.
4. conversation adapter according to claim 1 is characterized in that, described Bluetooth circuit is connected with described speech processing circuit by pcm bus.
5. conversation adapter according to claim 1 and 2 is characterized in that, described ringing circuit comprises first relay circuit and second relay circuit;
Described first relay circuit comprises the first double-pole single-throw (D.P.S.T.) relay, and one of them switch ends of the described first double-pole single-throw (D.P.S.T.) relay connects RING1 holding wire and ground respectively, and another switch ends connects TIP1 holding wire and power supply respectively;
Described second relay circuit comprises the second double-pole single-throw (D.P.S.T.) relay, and one of them switch ends of the described second double-pole single-throw (D.P.S.T.) relay connects RING1 holding wire and power supply respectively, and another switch ends connects TIP1 holding wire and ground respectively;
Described first, second double-pole single-throw (D.P.S.T.) relay is by ring control signal RingC control break-make, and described ring control signal RingC is a square-wave signal.
6. conversation adapter according to claim 5 is characterized in that, described first relay circuit comprises that also first break-make control triode and ring control signal insert triode; Described first break-make control of the coil tandem of described first double-pole single-throw (D.P.S.T.) relay triode, the base stage of first break-make control triode is used to import off-hook control signal Pick and described ring control signal RingC, wherein ring control signal RingC is connected with the base stage that described ring control signal inserts triode, and inserts the base stage that triode exports first break-make control triode to by described ring control signal.
7. conversation adapter according to claim 5 is characterized in that, described second relay circuit also comprises second break-make control triode; Described second break-make control of the coil tandem of described second double-pole single-throw (D.P.S.T.) relay triode, the base stage of described second break-make control triode is used to import described ring control signal RingC.
CN200920277517XU 2009-12-01 2009-12-01 Conversation adapter Expired - Lifetime CN201682546U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102185984A (en) * 2011-04-20 2011-09-14 中国科学院计算技术研究所 Voice transmission control system and method
CN106031137A (en) * 2014-02-21 2016-10-12 Gn奈康有限公司 Desktop telephone system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102185984A (en) * 2011-04-20 2011-09-14 中国科学院计算技术研究所 Voice transmission control system and method
CN106031137A (en) * 2014-02-21 2016-10-12 Gn奈康有限公司 Desktop telephone system

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