CN102395084A - Headset circuit - Google Patents
Headset circuit Download PDFInfo
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- CN102395084A CN102395084A CN201110357600XA CN201110357600A CN102395084A CN 102395084 A CN102395084 A CN 102395084A CN 201110357600X A CN201110357600X A CN 201110357600XA CN 201110357600 A CN201110357600 A CN 201110357600A CN 102395084 A CN102395084 A CN 102395084A
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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
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
Abstract
The invention discloses a headset circuit. The headset circuit comprises: a headset interface circuit, an audio codec/ a baseband processor and a control software module. The headset interface circuit comprises: a voltage conversion module, a clock shaping and generation circuit and a function switching module. In the invention, through adding the voltage conversion module, the clock shaping and generation circuit and the function switching module in the headset interface circuit, five control signals are used to control states of seven switches of the function switching module and simultaneously the control software module is used to control the working state in the audio codec/ a baseband processor. Therefore, based on a traditional headset and a traditional headset interface, without changing hardware, such as the audio codec/ the baseband processor and the like, by using the headset circuit, electric energy and the clock can be extracted through the headset interface circuit and an external connection circuit under the condition of changing the control software. Power supply and the clock can be provided for a plurality of peripheral equipment and the functions of the headset can be expanded.
Description
Technical field
The present invention relates to a kind of audio devices, particularly relate to a kind of headset circuit.
Background technology
Headset as its name suggests, is the integrate body of earphone and microphone, and is current, and along with the development of audio frequency apparatus, the application of headset is very extensive, recreation, music, video, and it is omnipresent.
Current, headset circuit of the prior art generally comprises audio codec/BBP and headset excuse, and wherein audio codec/BBP drives external earphone and microphone through the headset interface, realizes the input and the output of voice signal.Yet the headset circuit of prior art often only has traditional earphone function, can't expand the function of headset, has limited the use of headset.
In sum, can know that there is the problem that can't expand earphone function in the headset circuit in the prior art, therefore, be necessary to propose improved technological means in fact, solve this problem.
Summary of the invention
There is the problem that can't expand earphone function in the headset circuit in the above-mentioned prior art in order to overcome; Main purpose of the present invention is to provide a kind of headset circuit, and it can not change hardware such as any audio codec/BBP on the basis of traditional headset and headset interface; Only change Control Software; Extract electric energy and clock through headset interface, external circuits, power supply and clock are provided for a large amount of peripheral hardwares, expanded the function of headset.
For reaching above-mentioned and other purpose, the present invention proposes a kind of headset circuit, comprises headset interface circuit, audio codec/BBP and Control Software module, and this headset interface circuit comprises at least:
Voltage transformation module; Be connected in a function handover module; Export down this Control Software module produced in the control of this function handover module and to convert a direct current voltage into through the clock signal of this audio codec/baseband processor; Wherein, when this clock signal frequency was zero, this clock signal was a direct current high level;
Clock shaping and generation circuit are connected in this function handover module, under this function handover module control, this Control Software module is produced and handles through the clock signal of this audio codec/baseband processor, produce new clock signal output; And
The function handover module is connected with external earphone and microphone, and is connected with audio codec/BBP through a headset modular plug, and be used for the realization state and switch,
Wherein, this headset circuit switches the operating state of also utilizing this this control audio codec/BBP of Control Software control simultaneously through the state of this function handover module, realizes the switching between the difference in functionality.
Further, this headset circuit realizes that traditional earphone function, earphone mouth both-end mode produce the function of power supply and clock, the independent single-ended input of earphone mouth produces power supply and independent single-ended input produces the function of clock and the independent mode of earphone mouth produces power supply and clock keeps the switching between the mono headset function simultaneously.
Further, this voltage transformation module is the voltage transformation module of AC-to DC.
Further, this function handover module comes the realization state to switch through the break-make of a plurality of control switchs.
Further; This function handover module comprises first control switch, second control switch, the 3rd control switch, the 4th control switch, the 5th control switch, the 6th control switch and the 7th control switch by the control of first to the 5th control signal; This first control switch is arranged between this headset modular plug and the R channel earphone; This second control switch is arranged between this headset modular plug and the L channel earphone; The 5th control switch one end is connected in the L channel earphone; The other end is connected in the end that this first control switch links to each other with this headset modular plug, and the 3rd control switch one end is connected in the end that this first control switch links to each other with this headset modular plug, and the other end is connected in this voltage transformation module and this clock shaping and produces circuit; And through the 6th control switch ground connection; The 4th control switch one end is connected in the end that this second control switch links to each other with this headset modular plug, and the other end is connected in this voltage transformation module and this clock shaping and produces circuit, and through the 7th control switch ground connection.
Further; First control signal this first control switch of control and the 6th control switch; This second control signal is used to control second control switch and the 7th control switch; The 3rd control signal control control the 3rd control switch, the 4th control signal control the 4th control switch, the 5th control signal control the 5th control switch.
Further, be the negate relation between this first control signal and the 3rd control signal, between this second control signal and the 4th control signal, the 5th control signal for the 4th control signal and first control signal with form.
Further, this headset circuit is that high level, this first control signal are that high level, the 4th control signal are that low level, the 3rd control signal are that low level and the 5th control signal are the switching that low level realizes traditional earphone function through this second control signal of this Control Software module controls.
Further, this headset circuit is that low level, this first control signal are that low level, the 4th control signal are that high level, the 3rd control signal are that high level and the 5th control signal are that low level realizes the switching that earphone mouth both-end mode produces power supply and clock function through this second control signal of this Control Software module controls.
Further; This headset circuit is that low level, this first control signal are that low level, the 4th control signal are that high level, this second control signal are that high level, the 5th control signal are low level through this second control signal of this Control Software module controls, and the negative terminal input through stipulating this voltage transformation module effectively, the anode input that do not respond and stipulate this clock shaping and produce circuit of anode input regulation effectively, the negative terminal input do not respond and realizes that the independent single-ended input of earphone mouth produces the switching that power supply and independent single-ended input produce time clock feature.
Further, this headset circuit is that low level, first control signal are that high level, the 4th control signal are that high level, the 3rd control signal are that low level, the 5th control signal are that high level realizes that the independent mode of earphone mouth produces the switching that power supply and clock keep the mono headset function simultaneously through this second control signal of this Control Software module controls.
Further, this clock shaping and generation circuit are handled the clock signal of input, and output reaches the new clock signal to the input clock signal frequency multiplication to the new clock signal of input clock signal shaping.
Further; The configurable one-tenth of this headset circuit uses the external equipment of this direct voltage and new clock signal and the bus communication between the main frame; This headset circuit is configured to the data port of bus request up to specification to the general basic input/output interface of this audio codec/BBP through this Control Software module, simultaneously through this Control Software module the L channel power amplifier with (or) output of the R channel power amplifier clock that is configured to the regulation bus request with (or) frequency-dividing clock.
Compared with prior art; A kind of headset circuit of the present invention is through increasing voltage transformation module, clock shaping and producing circuit and function handover module in the headset interface circuit; Utilize the state of seven switches of five control signal controlled function handover modules to utilize the operating state in Control Software module controls audio codec/BBP simultaneously; Make that the present invention can be on the basis of traditional headset and headset interface; Do not change hardware such as any audio codec/BBP, only change Control Software, extract electric energy and clock through headset interface circuit, external circuits; Power supply and clock are provided for a large amount of peripheral hardwares, have expanded the function of headset.
Description of drawings
Fig. 1 is the circuit structure diagram of the preferred embodiment of a kind of headset circuit of the present invention;
Traditional headset circuit that Fig. 2 forms through configuration for Fig. 1;
Fig. 3 is the circuit that both-end mode that Fig. 1 forms through configuration produces power supply and clock;
Fig. 4 is that Fig. 3 produces circuit through single-ended input power supply of independence and the single-ended input clock that change forms;
Fig. 5 is single-ended generation power supply and the clock circuit that Fig. 1 forms through configuration.
Embodiment
Below through specific instantiation and accompanying drawings execution mode of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by the content that this specification disclosed.The present invention also can implement or use through other different instantiation, and each item details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
Fig. 1 is the circuit structure diagram of the preferred embodiment of a kind of headset circuit of the present invention.As shown in Figure 2; A kind of headset circuit of the present invention; Through external earphone and microphone; The input and the output of voice signal can be realized, and traditional earphone function can be realized and with the switching between earphone extracting energy, the time clock feature, it comprises at least: headset interface circuit 11, audio codec/BBP 12 and Control Software module 13.
Wherein, Headset interface circuit 11 comprises voltage transformation module 110, clock shaping and produces circuit 111, function handover module 112 and headset modular plug 113; Voltage transformation module 110 is one to convert alternating voltage the module of direct voltage into; It is used under the control of handoff functionality module 112, and the clock signal that this Control Software module 13 is produced and handles through this audio codec/BBP 12 converts direct voltage VDDL into; Clock shaping and generation circuit 111 are used under the control of handoff functionality module 112, and this Control Software module 13 produces and handles through the clock signal that this audio codec/BBP 12 is handled, and produces new clock signal; Handoff functionality module 112 is connected in voltage transformation module 110, clock shaping and produces circuit 111, earphone, microphone; And be connected with audio codec/BBP 12 through headset modular plug 112; State through function handover module 112 switches the operating state of also utilizing Control Software 13 control audio codec/BBPs 12 simultaneously, can realize two kinds of switchings between the function.
In preferred embodiment of the present invention; Function handover module 112 comprises first to the 7th control switch (K1-K7); First to the 7th control switch is here controlled by five control signals; Promptly the first control signal CTRL_R controls the first control switch K1 and the 6th control switch K6; The second control signal CTRL_L is used to control that the second control switch K2 and the 7th control switch K7, the 3rd control signal control CTRL_RB control the 3rd control switch K3, the 4th control signal CTRL_LB controls the 4th control switch K4; The 5th control signal CTRL_LB&CTRL_R controls the 5th control switch K5, and wherein the first control switch K1 is arranged between headset modular plug 112 and the R channel earphone, and the second control switch K2 is arranged between headset modular plug 112 and the L channel earphone; The 5th control switch K5 one end is connected in the L channel earphone; The other end is connected in the end that the first control switch K1 links to each other with headset modular plug 112, and the 3rd control switch K3 one end is connected in the end that the first control switch K1 links to each other with headset modular plug 112, and the other end is connected in voltage transformation module 110 and clock shaping and produces circuit 111; And through the 6th control switch K6 ground connection; The 4th control switch K4 one end is connected in the end that the second control switch K2 links to each other with headset modular plug 112, and the other end is connected in voltage transformation module 110 and clock shaping and produces circuit 111, and through the 7th control switch K7 ground connection; Like this; Function is switched module 112 through switching first to the 7th control switch (K1-K7) state of first to the 5th control signal (CTRL_R, CTRL_L, CTRL_RB, CTRL_LB and CTRL_LB&CTRL_R) control, and the operating state in Control Software module 13 control audio decoder/BBPs 12 can realize two kinds of switchings between the function simultaneously.
Below will further cooperate Fig. 1 that the present invention's operation principle is described: for audio decoder/BBP 12 parts, amplifier (AMPB) has been realized the output of microphone bias voltage, controls its operating state through internal register; Fig. 1 is abstracted into CB to the control signal of AMPB internal register; For the ease of explanation, in the time of regulation CB high level, AMPB is turned off; Export MICBIAS simultaneously and be set to high-impedance state; When CB was low level, AMPB opened, outputing to MICBIAS after the vdd voltage voltage stabilizing.Programmable gain amplifier (PGA) has been realized amplifying the signal of telecommunication of the next microphone of AIN, is input to analog to digital converter (ADC) then, and power amplifier (AMPL) has been realized the electricity of external L channel earphone coil is driven; Control its operating state through internal register, be abstracted into CL to the control signal of L channel power amplifier internal register, in the time of regulation CL high level; The power amplifier of L channel is turned off, and exports HPLOUT simultaneously and is set to high-impedance state, when CL is low level; The power amplifier of L channel is opened, and the signal VSIGL that comes L channel digital to analog converter (Left Ch DAC) internally is driven into output HPLOUT, and power amplifier (AMPR) has been realized the electricity driving to external R channel earphone coil; Control its operating state through internal register, be abstracted into CR to the control signal of R channel power amplifier internal register, in the time of regulation CR high level; The power amplifier of R channel is turned off, and exports HPROUT simultaneously and is set to high-impedance state, when CR is low level; The power amplifier of R channel is opened, and the signal VSIGR that comes R channel digital to analog converter (RightCh DAC) internally is driven into and exports HPROUT, among Fig. 1; RB is the resistance that biasing usefulness is provided to microphone opening, and input provides isolated DC to use to C1 to microphone, and the GPIO mouth is used through Mike's mouth inputoutput data; CL in some are used, can not have CL certainly providing at a distance from straight usefulness for the output of L channel earphone yet; Output provides at a distance from straight usefulness CR to the R channel earphone, in some are used, also can not have CR; Control Software module 13 is used for control audio codec/BBP etc., to realize traditional earphone function and with the switching of earphone extracting energy and clock function; For headset interface circuit 11 parts; Through switching the operating state in first to the 5th control signal (CTRL_R, CTRL_L, CTRL_RB, CTRL_LB, CTRL_LB&CTRL_R) control, first to the 7th control switch (K1-K7) state while Control Software module 13 control audio codec/BBPs 12; Can realize two kinds of switchings between the function; Here first to the 7th control switch can be a physical switch, like electric switch, mechanical switch, also can be the switch that all equivalences form; ACDC CONV is the voltage transformation module 110 of AC-to DC, and VDDL is a local power supply.CLK GEN is the clock shaping and produces circuit 111; CLKBUF is the shaping to input clock signal, and CLKHS is the frequency multiplication to input clock signal, can certainly produce the clock of more output frequency; The clock that CLKGEN produced includes but are not limited to CLKBUF and CLKHS; Wherein, VDDL, CLKBUF and CLKHS can build a lot of practical application circuit.
Traditional headset circuit that Fig. 2 forms through configuration for Fig. 1.Audio codec/BBP 12 ends dispose as follows: the CB low level; AMPB opens; The MICBIAS port has the bias voltage of microphone, and MICBIAS connects RB provides biasing to the MIC point, and the MIC point arrives AIN via C1 simultaneously; The input that the audio electrical signal that comes from microphone imports PGA into, the output of PGA connects the input of ADC again.CL low level AMPL opens, and inner left channel audio signal arrives the VSIGL point via Left Ch DAC, arrives the HPLOUT point via AMPL again and arrives the HPL point via CL again.CR low level AMPR opens, and inner right channel audio signal arrives the VSIGR point via Right Ch DAC, arrives the HPROUT point via AMPR again and arrives the HPR point via CR again.Headset interface circuit 11 ends dispose as follows: at first explanation; Five control signals of first to the 7th control switch (first to the 5th control signal CTRL_R, CTRL_L, CTRL_RB, CTRL_LB, CTRL_LB&CTRL_R) have correlation; It wherein between the first control signal CTRL_R and the 3rd control signal CTRL_RB negate relation; It between the second control signal CTRL_L and the 4th control signal CTRL_LB negate relation; The 5th control signal CTRL_LB&CTRL_R be the 4th control signal CTRL_LB with the first control signal CTRL_R with form, for the ease of explanation, the closure and the disconnection of switch are described with the high-low level of the abstract switch controlling signal that comes out; The regulation high-level control signal is corresponding closed, and the low level control signal is corresponding breaks off.The second control signal CTRL_L is a high level, and the first control signal CTRL_R is a high level, and is so corresponding; The 4th control signal CTRL_LB is a low level; The 3rd control signal CTRL_RB is a low level, and the 5th control signal CTRL_LB&CTRL_R is a low level, therefore; The circuit of equivalence is as shown in Figure 2, and promptly Fig. 2 is provided with the headset circuit that only has traditional earphone function that forms for the present invention through disposing.
Fig. 3 is the circuit that both-end mode that Fig. 1 forms through configuration produces power supply and clock.Wherein the configuration of audio codec/BBP 12 ends as follows: the CB low level; AMPB opens; The MICBIAS port has the bias voltage of microphone, and MICBIAS connects RB provides biasing to the MIC point, and the MIC point arrives AIN via C1 simultaneously; The input that the audio electrical signal that comes from microphone imports PGA into, the output of PGA connects the input of ADC again.CL low level AMPL opens, and inner L channel is not walked the audio frequency signal, produces the interchange clock signal by Control Software; This signal arrives the VSIGL point via Left Ch DAC, arrives the HPLOUT point via AMPL again and arrives the HPL point via CL again, and CR low level AMPR opens; Inner R channel is not walked the audio frequency signal; Produce the interchange clock signal by Control Software, this signal arrives the VSIGR point via RightCh DAC, arrives the HPROUT point via AMPR again and arrives the HPR point via CR again.Headset interface 11 ends dispose as follows: the second control signal CTRL_L is a low level, and the first control signal CTRG_R is a low level, and is so corresponding; The 4th control signal CTRL_LB is a high level, and the 3rd control signal CTRL_RB is a high level, and the 5th control signal CTRL_LB&CTRL_R is a low level; ACDCCONV is that both-end exchanges the voltage transformation module that is input to direct current output, and VDDL is a local power supply, and CLKGEN is the clock shaping and produces circuit; CLKBUF is the shaping to the both-end input clock signal; CLKHS is the frequency multiplication to input clock signal, and therefore, the circuit of equivalence is as shown in Figure 3.That is: Fig. 3 is the equivalent electric circuit that earphone mouth both-end mode produces power vd DL and clock CLKBUF, CLKHS, and the benefit that the both-end mode is supplied power is to obtain stronger driving force than single-ended.
Fig. 4 is that Fig. 3 produces circuit through single-ended input power supply of independence and the single-ended input clock that change forms.The configuration of audio codec/BBP 12 ends is identical with the configuration of Fig. 3 corresponding electrical circuits; The configuration of headset interface 11 ends is also identical with the configuration of Fig. 3 corresponding electrical circuits; That different is the ACDC CONV that changes the ACDCCONV of both-end input among Fig. 3 into single-ended input; Though there are two lines to link ACDC CONV, only let wherein an onset, the CLK GEN that imports both-end among Fig. 3 simultaneously changes the CLKGEN of single-ended input into.Use an earphone cord specifically instead and independently produce power supply, another root earphone cord independently produces clock.Audio codec/BBP 12 ends dispose as follows: the CB low level; AMPB opens; The MICBIAS port has the bias voltage of microphone, and MICBIAS connects RB provides biasing to the MIC point, and the MIC point arrives AIN via C1 simultaneously; The input that the audio electrical signal that comes from microphone imports PGA into, the output of PGA connects the input of ADC again.CL low level AMPL opens, and inner L channel is not walked the audio frequency signal, produces the interchange clock signal by Control Software, and this signal arrives the VSIGL point via Left Ch DAC, arrives the HPLOUT point via AMPL again and arrives the HPL point via CL again.CR low level AMPR opens, and inner R channel is not walked the audio frequency signal, produces the interchange clock signal by Control Software module 13, and this signal arrives the VSIGR point via Right Ch DAC, arrives the HPROUT point via AMPR again and arrives the HPR point via CR again.What this need explain be, when the clock signal frequency was 0, promptly the clock signal was a direct current high level, and the capacitance CR short circuit with correspondence is set this moment, and ACDC CONV module only needs to convert direct voltage into direct voltage output.Headset interface 11 ends dispose as follows: the second control signal CTRL_L and the first control signal CTRL_R are low level, and be so corresponding, and the 4th control signal CTRL_LB is a high level; The second control signal CTRL_RB is a high level, and the 5th control signal CTRL_LB&CTRL_R is a low level, and the negative terminal input regulation of ACDC CONV effectively; The anode of ACDC CONV input regulation ACDC CONV does not respond, and the line and the internal circuit that promptly concerning ACDC CONV, are connected to anode from the outside break off, in like manner; The anode input regulation of CLK GEN effectively; The negative terminal input does not respond, and therefore, the circuit of equivalence is as shown in Figure 4.Fig. 4 is the equivalent electric circuit that independent single-ended input HPR generation power vd DL of earphone mouth and independent single-ended input HPL produce clock CLKBUF, CLKHS.(annotate, HPR and HPL can exchange at this, and Fig. 4 is a kind of in two kinds of realizations) benefit independently-powered and the generation clock is to obtain higher-quality clock and power supply.
Fig. 5 be Fig. 1 through single-ended generation power supply and clock circuit that configuration forms, also keep the mono headset function simultaneously.Audio codec/BBP 12 ends dispose as follows: the CB low level, and AMPB opens, and the MICBIAS port has the bias voltage of microphone; MICBIAS connects RB provides biasing to the MIC point, and the MIC point arrives AIN via C1 simultaneously, the input of importing PGA into from the next audio electrical signal of microphone; The output of PGA connects the input of ADC again; CL low level AMPL opens, and inner L channel is not walked the audio frequency signal, produces the interchange clock signal by Control Software module 13; This signal arrives the VSIGL point via Left ChDAC, arrives the HPLOUT point via AMPL again and arrives the HPL point via CL again.CR low level AMPR opens; The inner R channel audio frequency signal that remains unchanged away, this signal arrives the VSIGR point via Right ChDAC, and (left and right acoustic channels can exchange here via CR arrival HPR point again to arrive HPROUT point via AMPR again; For the ease of explanation, chosen a kind of possible mode).Headset interface circuit 11 ends dispose as follows: the second control signal CTRL_L is a low level; The first control signal CTRL_R is a high level, and is so corresponding, and the 4th control signal CTRL_LB is a high level; The 3rd control signal CTRL_RB is a low level; The 5th control signal CTRL_LB&CTRL_R is a high level, and therefore, the circuit of equivalence is as shown in Figure 5.Fig. 5 is the equivalent electric circuit that the independent mode of earphone mouth produces power vd DL and clock CLKBUF, CLKHS, keeps the mono headset function simultaneously.
At this, what need explanation is that the functional circuit that Fig. 3, Fig. 4 and Fig. 5 are corresponding can be configured to utilize the external equipment of VDDL, CLKBUF, CLKHS and the bus communication between the main frame.Specifically; Be configured to the GPIO mouth of audio codec/BBP 12 through Control Software module 13 data port of bus request up to specification; Simultaneously through Control Software module 13 HPLOUT with (or) the HPROUT clock that is configured to the regulation bus request with (or) frequency-dividing clock, so just possessed the physical basis of bus communication, synchronised clock is arranged; Power supply is arranged, the bidirectional data line of input and output is arranged.Can be configured to the bus compatible, also can be configured to and the bus compatible bus of two lines, can also be configured to some other bus with I2C.
In sum; A kind of headset circuit of the present invention is through increasing voltage transformation module, clock shaping and producing circuit and function handover module in the headset interface circuit; Utilize the state of seven switches of five control signal controlled function handover modules to utilize the operating state in Control Software module controls audio codec/BBP simultaneously, make the present invention on the basis of traditional headset and headset interface, not change hardware such as any audio codec/BBP; Only change Control Software; Extract electric energy and clock through headset interface circuit, external circuits, power supply and clock are provided for a large amount of peripheral hardwares, expanded the function of headset.The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, rights protection scope of the present invention should be listed like claims.
Claims (13)
1. a headset circuit comprises headset interface circuit, audio codec/BBP and Control Software module, it is characterized in that, this headset interface circuit comprises at least:
Voltage transformation module; Be connected in a function handover module; Export down this Control Software module produced in the control of this function handover module and to convert a direct current voltage into through the clock signal of this audio codec/baseband processor; Wherein, when this clock signal frequency was zero, this clock signal was a direct current high level;
Clock shaping and generation circuit are connected in this function handover module, under this function handover module control, this Control Software module is produced and handles through the clock signal of this audio codec/baseband processor, produce new clock signal output; And
The function handover module is connected with external earphone and microphone, and is connected with audio codec/BBP through a headset modular plug, and be used for the realization state and switch,
Wherein, this headset circuit switches the operating state of also utilizing this this control audio codec/BBP of Control Software control simultaneously through the state of this function handover module, realizes the switching between the difference in functionality.
2. headset circuit as claimed in claim 1 is characterized in that: this headset circuit realizes that traditional earphone function, earphone mouth both-end mode produce the function of power supply and clock, the independent single-ended input of earphone mouth produces power supply and independent single-ended input produces the function of clock and the independent mode of earphone mouth produces power supply and clock keeps the switching between the mono headset function simultaneously.
3. headset circuit as claimed in claim 2 is characterized in that: this voltage transformation module is the voltage transformation module of AC-to DC.
4. headset circuit as claimed in claim 2 is characterized in that: this function handover module comes the realization state to switch through the break-make of a plurality of control switchs.
5. headset circuit as claimed in claim 4; It is characterized in that: this function handover module comprises first control switch, second control switch, the 3rd control switch, the 4th control switch, the 5th control switch, the 6th control switch and the 7th control switch by the control of first to the 5th control signal; This first control switch is arranged between this headset modular plug and the R channel earphone; This second control switch is arranged between this headset modular plug and the L channel earphone; The 5th control switch one end is connected in the L channel earphone; The other end is connected in the end that this first control switch links to each other with this headset modular plug, and the 3rd control switch one end is connected in the end that this first control switch links to each other with this headset modular plug, and the other end is connected in this voltage transformation module and this clock shaping and produces circuit; And through the 6th control switch ground connection; The 4th control switch one end is connected in the end that this second control switch links to each other with this headset modular plug, and the other end is connected in this voltage transformation module and this clock shaping and produces circuit, and through the 7th control switch ground connection.
6. headset circuit as claimed in claim 5; It is characterized in that: first control signal this first control switch of control and the 6th control switch; This second control signal is used to control second control switch and the 7th control switch; The 3rd control signal control control the 3rd control switch, the 4th control signal control the 4th control switch, the 5th control signal control the 5th control switch.
7. headset circuit as claimed in claim 6; It is characterized in that: be the negate relation between this first control signal and the 3rd control signal, between this second control signal and the 4th control signal, the 5th control signal for the 4th control signal and first control signal with form.
8. headset circuit as claimed in claim 7 is characterized in that: this headset circuit is that high level, this first control signal are that high level, the 4th control signal are that low level, the 3rd control signal are that low level and the 5th control signal are the switching that low level realizes traditional earphone function through this second control signal of this Control Software module controls.
9. headset circuit as claimed in claim 7 is characterized in that: this headset circuit is that low level, this first control signal are that low level, the 4th control signal are that high level, the 3rd control signal are that high level and the 5th control signal are that low level realizes the switching that earphone mouth both-end mode produces power supply and clock function through this second control signal of this Control Software module controls.
10. headset circuit as claimed in claim 7; It is characterized in that: this headset circuit is that low level, this first control signal are that low level, the 4th control signal are that high level, this second control signal are that high level, the 5th control signal are low level through this second control signal of this Control Software module controls, and the negative terminal input through stipulating this voltage transformation module effectively, the anode input that do not respond and stipulate this clock shaping and produce circuit of anode input regulation effectively, the negative terminal input do not respond and realizes that the independent single-ended input of earphone mouth produces the switching that power supply and independent single-ended input produce time clock feature.
11. headset circuit as claimed in claim 7 is characterized in that: this headset circuit is that low level, first control signal are that high level, the 4th control signal are that high level, the 3rd control signal are that low level, the 5th control signal are that high level realizes that the independent mode of earphone mouth produces the switching that power supply and clock keep the mono headset function simultaneously through this second control signal of this Control Software module controls.
12. headset circuit as claimed in claim 1 is characterized in that: this clock shaping and generation circuit are handled the clock signal of input, and output reaches the new clock signal to the input clock signal frequency multiplication to the new clock signal of input clock signal shaping.
13. headset circuit as claimed in claim 1; It is characterized in that: the configurable one-tenth of this headset circuit uses the external equipment of this direct voltage and new clock signal and the bus communication between the main frame; This headset circuit is configured to the data port of bus request up to specification to the general basic input/output interface of this audio codec/BBP through this Control Software module, simultaneously through this Control Software module the L channel power amplifier with (or) output of the R channel power amplifier clock that is configured to the regulation bus request with (or) frequency-dividing clock.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110357600.XA CN102395084B (en) | 2011-11-11 | 2011-11-11 | Headset circuit |
| PCT/CN2012/084362 WO2013067958A1 (en) | 2011-11-11 | 2012-11-09 | Headset circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110357600.XA CN102395084B (en) | 2011-11-11 | 2011-11-11 | Headset circuit |
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| Publication Number | Publication Date |
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| CN102395084A true CN102395084A (en) | 2012-03-28 |
| CN102395084B CN102395084B (en) | 2014-05-14 |
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| CN201110357600.XA Active CN102395084B (en) | 2011-11-11 | 2011-11-11 | Headset circuit |
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| CN (1) | CN102395084B (en) |
| WO (1) | WO2013067958A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983756A (en) * | 2012-11-28 | 2013-03-20 | 孙本彤 | Intelligent external device power supply method and intelligent external device power supply device |
| WO2013067958A1 (en) * | 2011-11-11 | 2013-05-16 | 杭州硅星科技有限公司 | Headset circuit |
| WO2013091516A1 (en) * | 2011-12-20 | 2013-06-27 | 杭州硅星科技有限公司 | Earphone interface and gpio interface multiplexing circuit structure |
| CN105282639A (en) * | 2014-07-04 | 2016-01-27 | 杭州硅星科技有限公司 | Headset interface control system and headset interface control method |
| CN105554606A (en) * | 2015-12-15 | 2016-05-04 | 广州三星通信技术研究有限公司 | Digital earphone and electronic device |
| CN106101903A (en) * | 2016-08-09 | 2016-11-09 | 杭州纳雄科技有限公司 | Numeral headset, headset system and control method thereof |
| CN113035215A (en) * | 2021-02-02 | 2021-06-25 | 头领科技（昆山）有限公司 | Audio signal processing chip and earphone |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698590A (en) * | 2020-07-22 | 2020-09-22 | 安徽信息工程学院 | Intelligence earphone of running based on wireless charging |
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| CN201359725Y (en) * | 2009-01-21 | 2009-12-09 | 青岛海信移动通信技术股份有限公司 | USB interface circuit and portable hand-held device provided with the circuit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013067958A1 (en) * | 2011-11-11 | 2013-05-16 | 杭州硅星科技有限公司 | Headset circuit |
| WO2013091516A1 (en) * | 2011-12-20 | 2013-06-27 | 杭州硅星科技有限公司 | Earphone interface and gpio interface multiplexing circuit structure |
| CN102983756A (en) * | 2012-11-28 | 2013-03-20 | 孙本彤 | Intelligent external device power supply method and intelligent external device power supply device |
| CN105282639A (en) * | 2014-07-04 | 2016-01-27 | 杭州硅星科技有限公司 | Headset interface control system and headset interface control method |
| CN105282639B (en) * | 2014-07-04 | 2019-07-23 | 杭州硅星科技有限公司 | Earphone microphone interface control system and earphone microphone interface control method |
| CN105554606A (en) * | 2015-12-15 | 2016-05-04 | 广州三星通信技术研究有限公司 | Digital earphone and electronic device |
| CN105554606B (en) * | 2015-12-15 | 2019-03-12 | 广州三星通信技术研究有限公司 | Digital earphone and electronic equipment |
| CN106101903A (en) * | 2016-08-09 | 2016-11-09 | 杭州纳雄科技有限公司 | Numeral headset, headset system and control method thereof |
| CN113035215A (en) * | 2021-02-02 | 2021-06-25 | 头领科技（昆山）有限公司 | Audio signal processing chip and earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013067958A1 (en) | 2013-05-16 |
| CN102395084B (en) | 2014-05-14 |
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