CN105451131A - Monophone system and control-switchable monophone method - Google Patents
Monophone system and control-switchable monophone method Download PDFInfo
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- CN105451131A CN105451131A CN201510767972.8A CN201510767972A CN105451131A CN 105451131 A CN105451131 A CN 105451131A CN 201510767972 A CN201510767972 A CN 201510767972A CN 105451131 A CN105451131 A CN 105451131A
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- send
- transmitting device
- integrated receiving
- telephone system
- switch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
Abstract
The invention relates to a monophone system and a control-switchable monophone method. The system comprises an integrated monophone; a switching controller connected with the integrated monophone and used for controlling the switching of the integrated monophone between the call transmitting state and the call receiving state according to a switching control signal; an amplifier circuit connected with the integrated monophone and used for amplifying a voice signal collected by the integrated monophone in the call transmitting state; and an input/output interface connected with the integrated monophone and the switching controller and used for being accessed to the switching control signal and transmitting the voice signal. The switching controller is used for controlling the integrated monophone to be switched between the call transmitting state and the call receiving state, so that the switching between the call transmitting state and the call receiving state can be realized. Therefore, the speech collision caused by the call transmitting and the call receiving can be avoided. The system is simple in structure and suitable for further popularization and application.
Description
Technical field
The present invention relates to speech communication field, more particularly, relate to a kind of sending and send called method by telephone system and changeable control.
Background technology
Voice call is the most basic mode of Human communication, and usual people use the communicators such as intercom, mobile phone, phone to converse.Comparatively commonly loud speaker and microphone are provided separately, to realize sending words, called function, realize voice call.
But the call of external, is easily subject to the interference of environment, and privacy not, and therefore, a lot of communicator all can be equipped with earphone microphone interface, converses by accessing split type headset, thus avoid the outer of voice and put, and improves speech quality.
Such as, but at some special occasions, as occasions such as rally meeting-place, emergency command, maritime affairs communication, special duty's securities, or in complex environment, stormy weather, noisy place etc., often need the speech communication of amount of bass.Traditional split type headset is the acoustic signals gathering environment due to microphone, will inevitably bring environmental noise into, and then cause speech quality greatly to reduce.
For this reason, some integrated receiving/transmitting devices are there are, by loud speaker and microphone being integrated in an earplug, whole earplug is put into duct, the small-signal that when utilizing human vocal chords to vibrate, eardrum sends or periosteum conduction technique are carried out process and are formed high-quality voice signal, realize sending words and called function integration.Collection mode due to acoustic signals is in internal auditory meatus or eardrum conduction, effectively can intercept the impact of ambient noise on signal source, thus externally can provide the voice signal of high-quality.But owing to sending words and called function integration to be positioned in duct, synchronous called meeting of sending causes the conflict of voice, and add the duct burden of user, be unfavorable for actual applying.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and is applicable to integration and send called sending to send called method by telephone system and changeable control.
The technical solution adopted for the present invention to solve the technical problems is: structure one is sent by telephone system, comprises integrated receiving/transmitting device; Also comprise:
Switch controller, connects with described integrated receiving/transmitting device, and send words according to the described integrated receiving/transmitting device switching of switch-over control signal control and be subject to speech phase;
Amplifying circuit, connects with described integrated receiving/transmitting device, for amplifying the voice signal gathered under described integrated receiving/transmitting device send speech phase; And
Input/output interface, connects with described integrated receiving/transmitting device, switch controller, for accessing described switch-over control signal, voice signal.
Send by telephone system of the present invention, this send and also comprises diverter switch by telephone system, is connected with described switch controller, and exports described switch-over control signal to described switch controller.
Send by telephone system of the present invention, described integrated receiving/transmitting device is the In-Ear headset with invertibity loudspeaker function and microphone function, for carrying out the conduction of sound wave by the air in duct.
Send by telephone system of the present invention, described input/output interface is earphone interface;
Described switch controller and amplifying circuit are arranged in same control box, and connected with described integrated receiving/transmitting device by connection first Communication signal wire, described first Communication signal wire realizes the transmission of the voice signal of loudspeaker function and microphone function.
Send by telephone system of the present invention, this send and also comprises the intercom with earphone microphone interface by telephone system; Described earphone interface matches with the earphone microphone interface of described intercom and is electrically connected; Described control box is connected with described intercom by the second Communication signal wire, realizes the signal input and output between intercom;
Described diverter switch is electrically connected with described intercom, controls the switching of described earphone microphone interface and send words and be subject to speech phase, and talk about with sending of described integrated receiving/transmitting device and match by speech phase;
This send and also comprises diverter switch box by telephone system, is provided with the second diverter switch be arranged in parallel with described diverter switch in described diverter switch box, and is connected with described control box by the 3rd Communication signal wire.
Send by telephone system of the present invention, this send and also comprises the filter circuit connected with described integrated receiving/transmitting device, for carrying out filtering to voice signal by telephone system;
Described filter circuit is bridge-type filtering Dolby circuit, connect with described integrated receiving/transmitting device, will amplifying circuit be sent after the voice signal of required transmission after filtering noise reduction again to or be transferred to described integrated receiving/transmitting device again by after the voice signal received after filtering noise reduction.
Send by telephone system of the present invention, this send and also comprises digital signal processing module by telephone system, connect with described integrated receiving/transmitting device and amplifying circuit, carry out digital-to-analogue conversion, power adjustment, analog-to-digital conversion process for the voice signal exported described amplifying circuit under speech phase that send at described integrated receiving/transmitting device; By under speech phase, analog-to-digital conversion, power adjustment, digital-to-analogue conversion process are carried out to the voice signal received at described integrated receiving/transmitting device.
Send by telephone system of the present invention, described digital signal processing module comprises and is connected to the called analog to digital converter between described integrated receiving/transmitting device and described input/output interface, called low pass filter, called attenuator, called digital to analog converter in turn;
Be connected to sending between described amplifying circuit and described input/output interface in turn to talk about analog to digital converter, send and talk about low pass filter, transmitting attenuation, send words digital to analog converter; And
With described called low pass filter, called attenuator, send talk about low pass filter, power controller that transmitting attenuation is connected.
The present invention also provide a kind of send by telephone system changeable control send called method, comprise the following steps:
S1: switch controller judges whether to receive switch-over control signal, when receiving switch-over control signal, performs step S3; Otherwise perform step S2;
S2: control integrated receiving/transmitting device and be in by speech phase, by input/output interface incoming speech signal, and delivers to described integrated receiving/transmitting device and carries out speech play;
S3: control described integrated receiving/transmitting device and be in and send speech phase, gathers voice signal by described integrated receiving/transmitting device, is sent to amplifying circuit and carries out to the voice signal collected amplifications and process, and exported by described input/output interface.
In described step S1 of the present invention, produce switch-over control signal by pressing toggle switch, and be sent to described switch controller and intercom, carry out sending words and the switching by speech phase;
In described step S2, receive the voice signal from described intercom by input/output interface, and successively after digital-to-analogue conversion, power adjustment, analog-to-digital conversion process, be sent to described integrated receiving/transmitting device and carry out speech play;
In described step S3, described integrated receiving/transmitting device gathers the acoustic signals of the air transmitted in duct, form voice signal, be sent to described amplifying circuit and carry out amplification process, and successively after analog-to-digital conversion, power adjustment, digital-to-analogue conversion process, be sent to described intercom through described input/output interface.
Implement the present invention and there is following beneficial effect: control the switching of integrated receiving/transmitting device by switch controller and send words and be subject to speech phase, thus realize giving words, called switching, avoid the conflict sending called meeting to cause voice, have structure simple, be suitable for the advantage applied.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural schematic block diagram that the present invention send by a telephone system embodiment;
Fig. 2 is the structural representation that the present invention send by a telephone system embodiment;
Fig. 3 is the schematic diagram that the present invention send the filter circuit part by a telephone system embodiment;
Fig. 4 is the schematic block diagram that the present invention send by another execution mode of telephone system;
Fig. 5 is the schematic flow sheet sending called method that the present invention send the changeable control by telephone system.
Embodiment
As shown in Figure 1, send by telephone system first embodiment of the present invention, comprise integrated receiving/transmitting device 11, switch controller 12, amplifying circuit and input/output interface 13 etc., control the switching of integrated receiving/transmitting device 11 by switch controller 12 send words and be subject to speech phase, thus realize sending words, called switching.
In the present embodiment, this send and also comprises diverter switch 14, wireless receiver unit (intercom 15) etc. by telephone system, inputs switching signal by this diverter switch 14, and integrated receiving/transmitting device 11 carries out being connected with intercom 15 and realizes speech talkback function.Understandable, diverter switch 14, intercom 15 etc. also can be other similar devices.
This integrated receiving/transmitting device 11 can for having the In-Ear headset (namely having the single earpiece of invertibity microphone, loudspeaker function) of microphone, loudspeaker function, can directly put in the duct of people, carry out the conduction of sound wave by the air in duct.When called, directly voice signal is sent to the ear-drum of people as loud speaker; When sending words, the small-signal that when utilizing human vocal chords to vibrate, eardrum sends carries out the identification of voice signal.
The version of integration receiving/transmitting device 11 can have multiple, such as utilize the coil portion etc. of oscillating plate, permanent magnet, winding permanent magnet, the air transmitted of sound wave in earhole of sounding, make vibration plate vibrates, and the permanent magnet be connected on oscillating plate is vibrated, in coil portion, generate voice signal electric current (sound equipment input-signal of telecommunication output transform microphone function); The acoustic current-meter sent here from outside flows into coil portion, magnetic magnet is vibrated, make vibration plate vibrates, inner ear (signal of telecommunication input-sound equipment output transform loudspeaker function) is passed in air transmitted in earhole, can realize the single earpiece with invertibity microphone, loudspeaker function simultaneously carrying out two-way exchange.
Such as utilize again the compositions such as vibrating membrane, the piezoelectric element be arranged on vibrating membrane, support metal plate.The air transmitted of sound in earhole of sounding, makes vibrating membrane vibrate, applies vibration voltage to the piezoelectric element be clipped between vibrating membrane and support metal plate, thus the sound voltage produced, realize microphone function.On the other hand, the sound voltage sent here from outside, puts on piezoelectric element, piezoelectric element, and make installation vibration plate vibrates on the piezoelectric element, the air transmitted in earhole is passed in inner ear, realizes loudspeaker function.
Understandable, integrated receiving/transmitting device 11 is not limited to above-mentioned example, and other similar structures existing can also be used to realize.
In order to switch sending words, by speech phase, switching signal can being inputted by diverter switch 14 of integrated receiving/transmitting device 11.This diverter switch 14 can be independent switch and/or the intercommunication diverter switch 14 be arranged on intercom 15.Be connected with switch controller 12, intercom 15, output switching controls signal to switch controller 12 and intercom 15 simultaneously, thus giving by speech phase of integrated receiving/transmitting device 11 and intercom 15 being configured to mate.
This intercom 15 can adopt existing various talk back equipment, comprises earphone microphone interface, docks with input/output interface 13.This earphone microphone interface comprises PTT port one 51, sound channel port one 52, microphone port 153 etc.Certainly, this intercom 15 also comprises reception antenna 154, transmitting antenna 155, acoustic reception processing module 156, voice output processing module 157, power module 158, frequency synthesizer 159 etc., send called function with what realize intercom 15.
This input/output interface 13 connects with integrated receiving/transmitting device 11, switch controller 12, for accessing switch-over control signal, voice signal.This in the present embodiment, this input/output interface 13 is earphone interface, comprises PTT interface 131, sound channel interface 132, microphone interface 133 and ground interface.
Understandable, the sound channel port one 52 of the sound channel interface 132 of input/output interface 13, microphone interface 133, PTT interface 131 and intercom 15, microphone port 153, PTT port one 51 are corresponding, can by integrated receiving/transmitting device 11 and intercom 15(or other device for mobile communication by this earphone interface) be connected fast, and realize voice call.Understandable, input/output interface 13 also can select the interface of other various criterions as required.
This switch controller 12 connects with diverter switch 14, integrated receiving/transmitting device 11, send words according to described integrated receiving/transmitting device 11 switching of switch-over control signal control that diverter switch 14 inputs and is subject to speech phase.Understandable, this switch controller 12 can also configure the circuit such as filter 121, flow restricter 122 according to actual needs, to ensure that it normally works.
The signal rank of collecting in duct due to In-Ear headset very faint (-80dBV rank), normally all directly cannot be supplied to mobile device such as intercom 15 grade, therefore, be provided with the amplifying circuit connected with integrated receiving/transmitting device 11, realize the enlarge leadingly of signal, the voice signal after amplification is outwards exported by input/output interface 13.In the present embodiment, this amplifying circuit comprises amplifier AMP.
Be subject under speech phase (namely receiving operation): diverter switch 14 is in disconnection (OFF) state, and integrated receiving/transmitting device 11 is in receiving mode (by speech phase).
Now, be that switch controller 12 is powered by the PTT port one 51 of intercom 15 by resistance R2, diode D2, now diode D2 is in on-state is positive voltage; Resistance R1, R3, R4, diode D1, D3, electric capacity C is in off position.The control signal terminal IN1/IN2 of switch controller 12 becomes high level, realize conducting between NO1-COM1-COM2-NO2 terminal, the now reception voice signal of intercom 15, exported by sound channel port one 52, and by the approach of NO1-COM1-COM2-NO2 using the sound driver integration receiving/transmitting device 11 that receives as loud speaker output sound.
Sending under speech phase (i.e. transmit operation): diverter switch 14 is in connection (ON) state, and integrated receiving/transmitting device 11 is in sending mode (sending speech phase).
Now, by diverter switch 14, the control signal of the PTT port one 51 of intercom 15 machine is become electronegative potential.By the change of this control signal, transfer intercom 15 to sending mode by receiving mode.The control signal terminal IN1/IN2 of switch controller 12 is become low level bit simultaneously, realize conducting between COM1-NC1-COM2-NC2 terminal.By the weak voltage utilizing the MIC port of intercom 15 to export, now diode D1, D3 is in on-state is positive voltage, and by resistance R1, R3, diode D1, D3 realize powering to switch controller 12 and amplifying circuit.
The control signal of switch controller 12 forwards low level to, and the output of integrated receiving/transmitting device 11 is connected to the input of amplifier AMP, by producing alternating signal at coupling capacitor C and having promoted microphone terminal.Like this from the transmission voice telecommunication number that integrated receiving/transmitting device 11 generates, through filter circuit 16 noise reduction process after, by COM1-NC1-COM2-NC2 approach, then after amplifier AMP, and send intercom 15 via resistor R4 to by microphone port 153, and send.
In the present embodiment, diverter switch 14, switch controller 12, amplifying circuit etc. are arranged in same control box 18, and are electrically connected with In-Ear headset, earphone interface respectively by connecting wire.As shown in Figure 2, integrated receiving/transmitting device 11 is connected with control box 18 by the first Communication signal wire 181, and first Communication signal wire 181 realizes the transmission of the voice signal of loudspeaker function and microphone function.This control box 18 is connected with intercom 15 by the second Communication signal wire 182, realizes the signal input and output between intercom 15.
Further, this control box 18 can also arrange the 3rd Communication signal wire 183, is connected to extra diverter switch box 19.The second diverter switch 191 be arranged in parallel with the diverter switch 14 in control box 18 is provided with in this diverter switch box 19, by operation diverter switch or the second diverter switch 191, the switching controls that control signal realizes loudspeaker function and microphone function can be produced.
In-Ear headset just can be worn in duct by user, utilizes wire control box 18, diverter switch box 19 to be extended, being held in hand; Recycle the second Communication signal wire 182 and earphone interface is extended to intercom 15 end, like this, at some special occasions, such as gather meeting-place, special duty's security, plain clothes are on duty etc., can converse by hidden operation, not discover by the external world, not by ectocine, there is the advantages such as disguised high, speech quality is good.
Further, the filter circuit 16 connected with integrated receiving/transmitting device 11 can also be set, will amplifying circuit be sent after the voice signal of required transmission after filtering noise reduction again to or be transferred to described integrated receiving/transmitting device 11 again by after the voice signal received after filtering noise reduction; Filtering is carried out to voice signal, before amplifying signal, most noise and interference is eliminated, after guaranteeing to amplify, be supplied to the signal quality of mobile device.Understandable, this filter circuit 16 can design according to the actual needs.
As shown in Figure 3, be that the filter circuit 16 of the present embodiment is by level Four filtering noise reduction process, the output of integrated receiving/transmitting device 11 or the external interference of coming in and going out in signal eliminated the state of the best.
When integrated receiving/transmitting device 11 outputs signal as transmitter, the signal rank of collecting in duct due to this device very faint (-80dBV rank), so carried out enlarge leadingly before being supplied to intercom.Owing to being subject to the High-frequency Interference impact of radio machine, in order to ensure the quality of the audio signal after amplifying, needing before signal amplifies, most interference signal to be eliminated, for this reason, in the present embodiment, using level Four filtering Dolby circuit:
First order filtering Dolby circuit is made up of electric capacity C1, C2, C3, C4 and filter F1;
Filtering Dolby circuit in the second level is made up of electric capacity C5, C6, C7, C8 and filter F2;
Third level filtering Dolby circuit is made up of electric capacity C9, C10 and C11;
Fourth stage filtering Dolby circuit is made up of electric capacity C12, C13, C14, C15 and C16;
The working method of first order filtering Dolby circuit: the parallel series circuit be made up of four capacitors such as electric capacity C1, C2, C3 and C4 forms low pass filter, filtering process is carried out to the interference in some designated frequency range, then by F1 filter, the high frequency noise in a certain wide frequency range is suppressed.
The working method of second level filtering Dolby circuit is identical with first order filtering Dolby circuit, but by changing the capacitance of parallel series circuit capacitor, filtering process is carried out to the interference within the scope of different frequency, then by F2 filter, the noise in another wide frequency range is suppressed.
The working method of third level filtering Dolby circuit is: by the signal smoothing process of three couple capacitors such as electric capacity C9, C10 and C11 through the first order, second level filtering Dolby circuit filtering process.
The working method of fourth stage filtering Dolby circuit is: the signal by power switch controller is carried out filtering noise reduction process, series-parallel circuit is formed by electric capacity C12, C13, C14, C15 and C16, suppress and filtering process lower than a certain frequency with higher than the noise signal of a certain frequency, guarantee the signal quality exporting to amplifier.
Certainly the signal after amplifier amplifies, also will noise reduction process (being equivalent to the filtering noise reduction of level V) after filtering, and the signal quality of guaranteeing to be defeated by intercom is also perfect.
Before integrated receiving/transmitting device 11 is as receiver input signal, also through the third level above, the second level, arrive the filtering noise reduction process of the first order again, will the signal transacting of loud speaker be inputed to perfect level.
Further, in certain embodiments, as shown in Figure 4, this send and also comprises digital signal processing module 17 by telephone system, connect with integrated receiving/transmitting device 11 and amplifying circuit, carry out digital-to-analogue conversion, power adjustment, analog-to-digital conversion process for the voice signal exported amplifying circuit under speech phase that send at integrated receiving/transmitting device 11; By under speech phase, analog-to-digital conversion, power adjustment, digital-to-analogue conversion process are carried out to the voice signal received at integrated receiving/transmitting device 11.
As shown in the figure, this digital signal processing module 17 comprises the called analog to digital converter 171, called low pass filter 172, called attenuator 173, the called digital to analog converter 174 that are connected in turn between integrated receiving/transmitting device 11 and input/output interface 13; Be connected to sending between amplifying circuit and described input/output interface 13 in turn to talk about analog to digital converter, send and talk about low pass filter 176, transmitting attenuation 177, send and talk about digital to analog converter 178175; And with called low pass filter 172, called attenuator 173, send talk about low pass filter 176, power controller 179 that transmitting attenuation 177 is connected.Understandable, called low pass filter 172, called attenuator 173, send words low pass filter 176, transmitting attenuation 177 and power controller 179 can be integrated in a MPU chip, also can be individual devices.
By under speech phase, receive the voice signal from intercom 15 by input/output interface 13, and successively after digital-to-analogue conversion, power adjustment, analog-to-digital conversion process, be sent to integrated receiving/transmitting device 11 and carry out speech play.
Sending under speech phase, integration receiving/transmitting device 11 gathers the acoustic signals of the air transmitted in duct, form voice signal, be sent to amplifying circuit and carry out amplification process, and successively after analog-to-digital conversion, power adjustment, digital-to-analogue conversion process, be sent to described intercom 15 through input/output interface 13.
As shown in Figure 5, be the schematic flow sheet sending called method that the present invention send the changeable control by telephone system.In use, the input/output interface 13 sent by telephone system is inserted in the earphone microphone interface of intercom 15.Then, switch controller 12 judges whether to receive switch-over control signal (step S101), when receiving switch-over control signal, performs step S103; Otherwise perform step S102.Concrete: when user is by producing switch-over control signal by toggle switch 14, and being sent to switch controller 12 and intercom 15, carrying out sending words and the handover configurations by speech phase.Such as, diverter switch 14 is in disconnection (OFF) state, and integrated receiving/transmitting device 11 is in receiving mode (by speech phase); Diverter switch 14 is in connection (ON) state, and integrated receiving/transmitting device 11 is in sending mode (sending speech phase).
Step S102: control integrated receiving/transmitting device 11 and be in by speech phase, by input/output interface 13 incoming speech signal, and delivers to integrated receiving/transmitting device 11 and carries out speech play.Such as, receive the voice signal from intercom 15 by input/output interface 13, and successively after digital-to-analogue conversion, power adjustment, analog-to-digital conversion process, be sent to integrated receiving/transmitting device 11 and carry out speech play.
In the present embodiment, be that switch controller 12 is powered by the PTT port one 51 of intercom 15 by current-limiting resistance R2, diode D2, now diode D2 is in on-state is positive voltage.The control signal terminal IN1/IN2 of switch controller 12 becomes high level, realize conducting between NO1-COM1-COM2-NO2 terminal, the now reception voice signal of intercom 15, exported by sound channel port one 52, and by the approach of NO1-COM1-COM2-NO2 using the sound driver integration receiving/transmitting device 11 that receives as loud speaker output sound.
Step S103: control integrated receiving/transmitting device 11 and be in and send speech phase, gather voice signal by integrated receiving/transmitting device 11, is sent to amplifying circuit and carries out amplification process to the voice signal collected, and exported by input/output interface 13.Such as, integration receiving/transmitting device 11 gathers the acoustic signals of the air transmitted in duct, forms voice signal, is sent to amplifying circuit and carries out amplification process, and successively after analog-to-digital conversion, power adjustment, digital-to-analogue conversion process, be sent to intercom 15 through input/output interface 13.
In the present embodiment, by diverter switch 14, the control signal of the PTT port one 51 of intercom 15 machine is become electronegative potential.By the change of this control signal, transfer intercom 15 to sending mode by receiving mode.The control signal terminal IN1/IN2 of switch controller 12 is become low level bit simultaneously, realize conducting between COM1-NC1-COM2-NC2 terminal.By the weak voltage utilizing the MIC port of intercom 15 to export, realize powering to switch controller 12 and amplifying circuit, now diode D1 is in on-state is positive voltage.
The control signal of switch controller 12 forwards low level to, and the output of integrated receiving/transmitting device 11 is connected to the input of amplifier AMP, by producing alternating signal at coupling capacitor C and having promoted microphone terminal.Like this from the transmission voice telecommunication number that integrated receiving/transmitting device 11 generates, through filter circuit 16 noise reduction process after, by COM1-NC1-COM2-NC2 approach, then after amplifier AMP, and send intercom 15 via resistor R4 to by microphone port 153, and send.
Utilize of the present invention sending to send called method by telephone system and changeable control, at least have the following advantages:
1, quiet or very quietly (such as decibel value is at 50dB or following) in environment, when not affecting and disturb the secret call that can to realize other people as abdomen language, such as inner etc. for talk place, concert hall of leader.
2, very noisy or cause (such as decibel value is at 110dB or more) in the environment of dysaudia, when not by ectocine, clear communication effect can be reached.Such as on the deck on navigation naval vessel, megaevent field, the lifting level ground on airport, the weather of lightning accompanied by peals of thunder etc.
3, make an uproar (such as wind speed reaches more than 100 kilometers/hour) in environment at high wind, clog-free clear call can be carried out.Such as, speedily carrying out rescue work in storm condition, motor is alert when carrying out an urgent task at a high speed etc.
Understandable, above embodiment only have expressed the preferred embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can carry out independent assortment to above-mentioned technical characterstic, can also make some distortion and improvement, these all belong to protection scope of the present invention; Therefore, all equivalents of doing with the claims in the present invention scope and modification, all should belong to the covering scope of the claims in the present invention.
Claims (10)
1. send by a telephone system, comprise integrated receiving/transmitting device; It is characterized in that, also comprise:
Switch controller, connects with described integrated receiving/transmitting device, and send words according to the described integrated receiving/transmitting device switching of switch-over control signal control and be subject to speech phase;
Amplifying circuit, connects with described integrated receiving/transmitting device, for amplifying the voice signal gathered under described integrated receiving/transmitting device send speech phase; And
Input/output interface, connects with described integrated receiving/transmitting device, switch controller, for accessing described switch-over control signal, voice signal.
2. according to claim 1ly send by telephone system, it is characterized in that, this send and also comprises diverter switch by telephone system, is connected with described switch controller, and exports described switch-over control signal to described switch controller.
3. according to claim 2ly send by telephone system, it is characterized in that, described integrated receiving/transmitting device is the In-Ear headset with invertibity loudspeaker function and microphone function, for carrying out the conduction of sound wave by the air in duct.
4. according to claim 3ly send by telephone system, it is characterized in that, described input/output interface is earphone interface;
Described switch controller and amplifying circuit are arranged in same control box, and connected with described integrated receiving/transmitting device by connection first Communication signal wire, described first Communication signal wire realizes the transmission of the voice signal of loudspeaker function and microphone function.
5. according to claim 4ly send by telephone system, it is characterized in that, this send and also comprises the intercom with earphone microphone interface by telephone system; Described earphone interface matches with the earphone microphone interface of described intercom and is electrically connected; Described control box is connected with described intercom by the second Communication signal wire, realizes the signal input and output between intercom;
Described diverter switch is electrically connected with described intercom, controls the switching of described earphone microphone interface and send words and be subject to speech phase, and talk about with sending of described integrated receiving/transmitting device and match by speech phase;
This send and also comprises diverter switch box by telephone system, is provided with the second diverter switch be arranged in parallel with described diverter switch in described diverter switch box, and is connected with described control box by the 3rd Communication signal wire.
6. send by telephone system according to any one of claim 1-5, it is characterized in that, this send and also comprises the filter circuit connected with described integrated receiving/transmitting device, for carrying out filtering to voice signal by telephone system;
Described filter circuit is bridge-type filtering Dolby circuit, connect with described integrated receiving/transmitting device, will amplifying circuit be sent after the voice signal of required transmission after filtering noise reduction again to or be transferred to described integrated receiving/transmitting device again by after the voice signal received after filtering noise reduction.
7. send by telephone system according to any one of claim 1-5, it is characterized in that, this send and also comprises digital signal processing module by telephone system, connect with described integrated receiving/transmitting device and amplifying circuit, carry out digital-to-analogue conversion, power adjustment, analog-to-digital conversion process for the voice signal exported described amplifying circuit under speech phase that send at described integrated receiving/transmitting device; By under speech phase, analog-to-digital conversion, power adjustment, digital-to-analogue conversion process are carried out to the voice signal received at described integrated receiving/transmitting device.
8. according to claim 7ly send by telephone system, it is characterized in that, described digital signal processing module comprises and is connected to the called analog to digital converter between described integrated receiving/transmitting device and described input/output interface, called low pass filter, called attenuator, called digital to analog converter in turn;
Be connected to sending between described amplifying circuit and described input/output interface in turn to talk about analog to digital converter, send and talk about low pass filter, transmitting attenuation, send words digital to analog converter; And
With described called low pass filter, called attenuator, send talk about low pass filter, power controller that transmitting attenuation is connected.
9. send by telephone system changeable control send a called method, it is characterized in that, comprise the following steps:
S1: switch controller judges whether to receive switch-over control signal, when receiving switch-over control signal, performs step S3; Otherwise perform step S2;
S2: control integrated receiving/transmitting device and be in by speech phase, by input/output interface incoming speech signal, and delivers to described integrated receiving/transmitting device and carries out speech play;
S3: control described integrated receiving/transmitting device and be in and send speech phase, gathers voice signal by described integrated receiving/transmitting device, is sent to amplifying circuit and carries out to the voice signal collected amplifications and process, and exported by described input/output interface.
10. method according to claim 9, is characterized in that, in described step S1, produces switch-over control signal, and be sent to described switch controller and intercom by pressing toggle switch, carry out sending words and the switching by speech phase;
In described step S2, receive the voice signal from described intercom by input/output interface, and successively after digital-to-analogue conversion, power adjustment, analog-to-digital conversion process, be sent to described integrated receiving/transmitting device and carry out speech play;
In described step S3, described integrated receiving/transmitting device gathers the acoustic signals of the air transmitted in duct, form voice signal, be sent to described amplifying circuit and carry out amplification process, and successively after analog-to-digital conversion, power adjustment, digital-to-analogue conversion process, be sent to described intercom through described input/output interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510767972.8A CN105451131A (en) | 2015-11-11 | 2015-11-11 | Monophone system and control-switchable monophone method |
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| CN201510767972.8A CN105451131A (en) | 2015-11-11 | 2015-11-11 | Monophone system and control-switchable monophone method |
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| CN201510767972.8A Pending CN105451131A (en) | 2015-11-11 | 2015-11-11 | Monophone system and control-switchable monophone method |
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