CN1271885C - Line controlled microphone device and method for recognizing keystroke action by voltage gradient - Google Patents
Line controlled microphone device and method for recognizing keystroke action by voltage gradient Download PDFInfo
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- CN1271885C CN1271885C CN 01123038 CN01123038A CN1271885C CN 1271885 C CN1271885 C CN 1271885C CN 01123038 CN01123038 CN 01123038 CN 01123038 A CN01123038 A CN 01123038A CN 1271885 C CN1271885 C CN 1271885C
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Abstract
The present invention relates to a line controlled microphone device and a method for identifying keys by voltage gradient. A key part is arranged on a microphone, wherein the key part contains a function selecting key and two adjusting keys; the multiple keys are used as the switch parts of a voltage sampling circuit unit which is arranged in the microphone. A control part which is arranged on a plug in a shape like the Chinese character ' yi ' of the microphone is contacted and matched with a control part which is correspondingly arranged in a microphone jack of power amplifier equipment so that control signals of the keys are input in a voltage comparing circuit in the power amplifier equipment and compared current is identified by a microprocessor which is arranged in the power amplifier equipment to carry out the operation orders of the keys correspondingly. The regulation of sound parameters, such as sound volume, sound quality, reverberation, etc. is realized by a control device which is arranged on the microphone and is directly completed through the line control of the line control. The present invention is convenient and simple. Moreover, the keys of the microphone adopt a light touch switch which greatly improves the reliability and the service life of the microphone.
Description
Technical field
The present invention relates to a kind of line traffic control microphone device, particularly relate to a kind of microphone device with control device.
Background technology
Microphone is a kind of sound to be converted to the device of the signal of telecommunication, and it has been widely used in broadcasting, recording and the public address equipment.At present, cable microphone is to use and broadcasts and sing microphone the most widely.As the small-signal transducer, microphone must be equipped with amplifier, and controls for the parameter of microphone, as the control of volume, reverberation parameter, also all is arranged on the respective amplifier.Correspondingly, the design of the microphone of prior art is comparatively simple, and shown in Figure 1A and Figure 1B, by a word plug 120, its major part is grounding parts 121 and the signal section 122 that mutually insulated is provided with; This grounding parts 121 is electrically connected with the head 150 of microphone 100 by the ground connection socket 141 on connecting line 130 and the three core cards farming output seat 140; 122 signal sockets of exporting on the seat 140 by the farming of three core cards 142 of this signal section are electrically connected with the head 150 of microphone 100.One word plug 120 of the microphone 100 of described prior art, shown in Fig. 1 C, after the socket that inserts sound processing apparatus, described grounding parts 121 and earth connection 123 are by contacting electrical connection, simultaneously 122 of described signal section contact electrical connection with holding wire 124, handle thereby will import sound processing apparatus into from the signal that microphone receives.And, then need to come into sound processing apparatus as for the adjusting of volume, tonequality, reverberation etc., regulate by electronic potentiometer on the control panel of sound processing apparatus.
But so, when the people of hand microphone when regulating relevant parameter, need walk close to respective amplifier and just can finish, this rather bothers, and utters long and high-pitched sounds and damage amplifier and audio amplifier and people's hearing because of producing self-excitation in adjustment process easily.As seen the microphone device of present technology can't allow the microphone holder conveniently regulate relevant parameter.
Though some production firms can remedy this defective to a certain extent by on corresponding amplifier red place distant control function being set, and do like this, the operator needs a hand microphone, and the another hand-held remote controller also is inconvenient.Simultaneously, this remote control equipment need correspondingly increase cost, so its application is very limited; In fact, such application is an only a few.
In addition, a mechanical switch 110 must be installed all above the cable microphone 100 of prior art, shown in Figure 1A, this switch 110 needs often action when inactive using, and therefore becomes a fault and easily sends out a little.Actual conditions prove that the microphone switch that is easy to damage is to cause the out of order one of the main reasons of microphone.Because this microphone switch that is easy to damage greatly reduces the reliability of microphone.
Microphone device is a kind of transducer of small-signal, so microphone also must be equipped with sound processing apparatus, as devices such as power amplifier or sound equipments when using.A microphone amplifying unit and one and the audio power amplifying unit that joins of loud speaker have wherein been comprised at least; In addition, according to the needs of different occasions, such sound processing apparatus also has some regulatory functions usually, and for example the volume of microphone is regulated, microphone reverberation adjusting and volume of music adjusting etc.Because the extensive use of above-mentioned prior art microphone device, most sound processing apparatus is by being arranged on the outer adjusting knob of device, as mechanical potentiometer etc., voice signal directly regulated.
Summary of the invention
Above-mentioned deficiency at present technology, an object of the present invention is to propose a kind of microphone with control device, this microphone can be coupled with amplifier, and realize on microphone device of the present invention control device being set by on a word plug of line end a control part being set.
Another purpose of the present invention is to propose the control circuit that a kind of line traffic control is put tube, by picking up the sampled signal of microphone button of the present invention portion, its control part by a word plug is sent to a microprocessor, and has realized the regulatory function to analog quantity.
A further object of the present invention is the sound processing apparatus that proposes a kind of line traffic control microphone, and it utilizes a microprocessor that the different operating of button is specified and send to the analog quantity regulon by the word plug appropriate ports with microphone device of the present invention.
A further object of the present invention is to propose a kind of method of utilizing voltage gradient method identification button operation, by the variation of different key output voltage after action, can discern the operation of button.
Realize that the present invention ground technical scheme is described below:
A kind of line traffic control microphone device comprises:
One pick-up head is used to pick up voice signal;
One microphone portion is fixedlyed connected with described head, is provided with:
One button portion; With
One is provided with rear-end output plug, comprises plurality of terminals, is used to transmit from the control signal of described button portion and the voice signal of described pick-up head; And
One Wiring device comprises:
One input seat is with the described output plug coupling that is arranged on the microphone portion tail end; With
One one word plug is used for and the power amplifying device coupling, wherein, and insulated from each other being provided with of a described word plug:
One signal section is joined with signal terminal on the described output plug, is used for joining with the audio amplification unit that is arranged on described power amplifying device;
One control part is used for the function regulon coupling with described power amplifying device; With
One grounding parts is used for the earthing device coupling with described power amplifying device;
Be provided with a control circuit below the described button portion, include:
One voltage sample unit, the described control part coupling with described microphone device comprises some sampling elements, is used to pick up the operating voltage signal of described button portion;
One voltage comparison unit, its input joins with the described voltage sample unit that the control part with a described word plug is coupled; And
One microprocessor is connected between described voltage comparison unit and the regulating circuit, is used to realize the control to different key functions;
Described control circuit is coupled with described control part, the control part of a described word plug is connected, and is used for realizing different key is made a response.
Described microphone device, wherein, described button portion is made up of touch-switch, comprises:
A function selecting key is used to the various adjustable analog quantity of selecting described power amplifying device to be provided with;
First adjusting key is used to promote the selected analog quantity of described options button; With
Second adjusting key, the selected analog quantity of described options button is used to decay.
Described microphone device, wherein, a described function selecting key is arranged between described first adjusting key and second adjusting key.
Described microphone device, wherein, described button portion links to each other with the described control part of a described word plug.
Described microphone device, wherein, described sampling element polyphone connects.
Described microphone device, wherein, the plurality of keys of forming described microphone device button portion is connected between the grounding parts of a tie point between described some sampling elements and a described word plug.
Described microphone device, wherein, described sampling element and downlink connection.
Described microphone device, wherein, the plurality of keys of forming described microphone device button portion is connected in the branch road of described some sampling elements.
Described microphone device, wherein, described voltage sample unit is arranged in the described microphone device.
Described microphone device, wherein, described voltage sampling element is resistance or diode element.
Described microphone device, wherein, described voltage sampling element is a transistor unit.
A kind of method of utilizing voltage gradient method identification microphone button operation comprises:
A) grounding parts, control part and the signal section of being provided with insulated from each other on a word plug of microphone;
B) some sampling elements are formed a voltage sample unit, be connected with each button of described microphone respectively, and be coupled with described control part;
C) output in described voltage sample unit inserts a voltage comparison unit, is used to pick up the sampled voltage of described voltage sample unit output;
D) output at described voltage comparison unit connects a microprocessor, and the analog quantity regulating circuit of this microprocessor and power amplifying device joins;
E) the button portion at described microphone is provided with a function selecting key and two adjusting keys respectively, and this adjusting key is respectively applied for the increase that realizes the control parameter and reduces;
F) continue to press described function selecting key and reach a scheduled time, the controlled amplifier in the described power amplifying device is realized quiet to described microphone;
G) press described options button, further Presentation Function choice menus or indicate described function;
H) press arbitrary adjusting key, the current analog quantity of described function selecting menu is regulated.
Described method, step g) also comprises in the tool:
I) press described options button once more, described choice menus switches current analog quantity.
Described method also comprises:
J) press described options button once more constantly and reach a scheduled time, controlled amplifier cancellation is quiet to described microphone ground in the described power amplifying device.
According to an aspect of the present invention, because the present invention is provided with a control part on a word plug of microphone connecting line, realize on microphone, directly being provided with the function selecting part and regulated button, make directly operation and regulated various parameters on microphone of the present invention of user, for example, it can give family and public place of entertainment often the karaoke of quilt bring great convenience, and can bring more temperament and interest for people's amateurish entertainment life with the controlled convenience of its global function.
According to another aspect of the present invention, owing to adopt the control of the sampling of voltage gradient method and comparison circuit unit and microcontroller chip in the control circuit of line traffic control microphone of the present invention, realization is directly regulated parameters such as volume tonequality by the button portion on the microphone, regulates and control more convenient succinct.
In accordance with a further aspect of the present invention, sound processing apparatus of the present invention adopts suitable grounding parts, control part and the signal section of a word plug with described line traffic control microphone, and by the control of the microprocessor that is provided with to sampling and comparison circuit, thereby receive the signal processing of the button portion of line traffic control microphone, realize the line traffic control function of microphone; Further, sound processing apparatus of the present invention is by the short-circuit detecting of described microprocessor to grounding parts and control part, realized the compatibility with the common microphone of prior art.
According to another aspect of the invention, the method for realization line traffic control microphone button identification of the present invention, by adopting the method for voltage gradient, wire control circuit structure is simple, and control signal is clear.
Description of drawings
By description, will make technique scheme of the present invention and other advantages apparent below in conjunction with accompanying drawing to preferred embodiment of the present invention.
Figure 1A is the schematic diagram of the line traffic control microphone device of prior art, comprising the line portion that is provided with a word plug with have the microphone of button:
Figure 1B is the view of microphone device shown in Figure 1A along the A-A line, shows signal terminal and earth terminal in its three cores CANNON output seat;
Fig. 1 C is a word plug and the socket connection diagram of microphone device shown in Figure 1A, and wherein this plug comprises the earth terminal and the signal end of setting insulated from each other;
Fig. 2 A is the schematic diagram of microphone device of the present invention, comprising line portion that is provided with a word plug and the microphone that has button;
Fig. 2 B is the view of the B-B direction of the microphone device of the present invention shown in Fig. 2 A, shows signal terminal, control terminal and earth terminal in its three cores card farming output seat;
Shown in Fig. 2 C is the schematic diagram that a word plug of the microphone of the present invention shown in Fig. 2 A is connected with socket, and wherein this plug comprises earth terminal, control end and the signal end of setting insulated from each other;
Shown in Fig. 2 D is the compatible state diagram of a word plug of traditional microphone at insertion and sound processing apparatus of the present invention;
Fig. 3 A is the circuit theory diagrams of the invention part of microphone device of the present invention;
Shown in Fig. 3 B is the flow chart of line traffic control microphone device working signal of the present invention;
Fig. 4 A is the voltage sampling circuit schematic diagram of the voltage gradient method of microphone device of the present invention;
Fig. 4 B is the practical application circuit diagram of voltage sampling circuit shown in Fig. 4 A in preferred embodiment of the present invention;
Fig. 4 C is the practical application circuit diagram of voltage sampling circuit shown in Fig. 4 A in another preferred embodiment of the present invention;
Shown in Fig. 5 is the circuit diagram of the voltage comparator circuit unit of microphone device of the present invention;
Fig. 6 is the control panel schematic diagram of preferred embodiment of the sound processing apparatus of microphone device of the present invention.
Embodiment
Hereinafter will describe the present invention in detail.
Line traffic control radiation microphone device of the present invention, shown in Fig. 2 A, comprise a pickup head 211, be used for picking up voice signal; One microphone portion 210 is fixedlyed connected with described pickup head 211; On this microphone 210, also be provided with button portion 220, with one rear-end output plug 230 is set, including plurality of terminals on 230 on this output plug, comprise earth terminal 231, control terminal 232 and signal terminal 233, shown in Fig. 2 B, be used for transmitting from the control signal of described button portion 220 and described pick-up head 2 " voice signal; And a Wiring device 240, comprise an input seat 241, matching with the described output plug 230 that is arranged on microphone portion 210 tail ends is connected, the transmission of realization signal.
Described Wiring device 240 also comprises word plug 250 one by one, is used for and sound processing apparatus, and power amplifying device 600 as shown in Figure 6 is coupled.On a described word plug 250, be provided with a signal section 251, join, be used for joining with the audio amplification unit 630 that is arranged on described power amplifying device 600 with signal terminal 233 on the described output plug 230, shown in Fig. 3 B, be received from the voice signal that 211 transmission of microphone pickup device head come.A described word plug 250 also is provided with a control part 252, is used for being coupled with the function regulon 640 of described power amplifying device 600; And a grounding parts 253, be used for being coupled with the earthing device of described power amplifying device 600.
Line traffic control microphone device of the present invention by with the combining of sound processing apparatus 600, realize parameters such as volume, tonequality and reverberation, directly realization line traffic control sound processing apparatus on microphone by the 220 control microphone pickoff signals of the button portion on the described microphone.
The button portion 220 of line traffic control microphone device of the present invention is made up of touch-switch, wherein comprises a function selecting key 221, is used to the various adjustable analog quantity of selecting described power amplifying device 600 to be provided with; And first adjusting key 222 and second adjusting key 223, be used to promote or adjustable analog quantity that the described options button 221 of decaying is selected.Be preferably, this function selecting key 221 is arranged between described first adjusting key 222 and second adjusting key 223.Described button portion 220 is connected through electric wires with the control part 252 of a described word plug 250; Phone contact situation behind the microphone socket 610 of the described power amplifying device 600 of a described word plug 250 insertions, shown in Fig. 2 C, grounding parts 253 contacts electrical connection with earth connection 613, control part 252 is connected with control line 612 contacts simultaneously, signal section 251 contacts electrical connection with microphone signal line 611, respectively transmission of electric signals.
The control circuit of line traffic control microphone device of the present invention, shown in Fig. 3 B, comprise a voltage sampling circuit unit 310, be coupled with the described control part 252 of described microphone device, wherein comprise some sampling elements, be used to pick up the operating voltage signal that described button portion 220 produces; One voltage comparison unit 320, its input is electrically connected with described voltage sample unit 310 by the control part 252 of a described word plug 250.Described control circuit also comprises a microprocessor 330, be connected between described voltage comparison unit 320 and the regulating circuit 640, be used for judging the order and the time of button, realize control different key functions according to the processing of voltage comparison unit 320 and voltage sample unit 310.
Described voltage sample unit 310, shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, comprise circuit sampling element R1, R2 ..., Rn in actual the use, may only be provided with the voltage sampling element of three buttons, i.e. R1, R2, R3 and R4.Described a plurality of voltage sampling element can be connected in series, shown in Fig. 4 B; Also can be connected in parallel, shown in Fig. 4 C.Correspondingly, the plurality of keys K switch 1 of forming the button portion 220 of described microphone device, K2 ..., Kn, in actual use, three key switches, i.e. K1 can only be set, K2, K3 is connected to described some sampling element R1, between the grounding parts 253 of a connected node between R2 and the R3 and a described word plug 250; Also can be with the plurality of keys K1 of described microphone device button portion 220, K2 and K3 are connected to described some sampling element R1, in the branch road of R2 and R3.This plurality of keys K1, K2, K3 are correspondingly corresponding to three buttons 221,222,223 of described button portion.Described voltage sampling element R1, R2 and R3 are resistance or diode, can use transistor unit.
Described voltage sample unit 310 is arranged in the described microphone device, and as shown in Figure 3A, thereby the adjusting of each parameter of sound is controlled in realization by the button portion 220 that presses this microphone device.
Will fully realize goal of the invention of the present invention and effect, microphone device of the present invention also need be equipped with corresponding sound processing apparatus 600, as shown in Figure 6, comprises a microphone amplifying unit 660 at least; Phone is shown in Fig. 3 B, and a microphone reverberation unit 670 joins with described microphone amplifying unit 660; One audio power amplifying unit 630 joins with described reverberation unit 670; One institute's sound device 650 joins with described audio power amplifying unit 630; With a regulon 640 that is used to regulate described unit output analog quantity.Described sound processing apparatus 600 also comprises at least one port 680, be used for matching with a word plug 250 of described microphone device, and with a corresponding grounding parts 683, control part 682 and the signal section 681 of being provided with insulated from each other of the grounding parts 253 of this word plug, control part 252 and signal section 251; Described grounding parts 683 contacts with the grounding parts 253 of a described word plug 250, described control part 682 contacts with the control part 252 of a described word plug 250, is used to receive the button control signal of importing into by described control part 252 from described button portion 220; Described signal section 681 contacts with the signal section 251 of a described word plug 250, is used to receive the next voice signal of signal section transmission of a described word plug 250.
Simultaneously, be connected to earth connection 613 respectively with grounding parts 683, control part 682 and the signal section 681 of described port 680, control line 612 and holding wire 611, shown in Fig. 2 C and Fig. 3 B, described holding wire 611 will finally will go out through the sound playing of handling and control by loud speaker 650 from the voice signal input microphone amplifying unit 660 and the subsequent process circuit of microphone.
Described sound processing apparatus 600 also is provided with a voltage comparison unit 320, shown in Fig. 3 A and Fig. 3 B, be connected by described control line 612 with the described control part 682 of described port 680, be used to utilize this port 680 to cooperate, pick up the operating voltage signal of the plurality of keys of the button portion 220 on the described microphone with the described control part 252 of a described word plug 250; And a microprocessor 330, be connected between described voltage comparison unit 320 and the described regulon 640, be used to realize control to the different key functions of described microphone device.
Described regulon 640 shown in Fig. 3 B, comprises first potentiometer 641 that is used to regulate the microphone volume, is connected with described microphone amplifying unit 660; Be used to regulate second potentiometer 642 of microphone reverberation, be electrically connected with described microphone reverberation unit 670; One music voice mixed cell 644 is electrically connected with described microphone reverberation unit 670; With the 3rd potentiometer 643 that is used to regulate the music electric weight, be coupled with described music voice mixed cell 644.
Be more preferably, in described microprocessor 330, be provided with the logic determines that detects between described earth connection 613 and the control line 612 whether short circuit, as detect short-circuit condition between them, shown in Fig. 2 D, then there is described microprocessor 330 will shield the effect of described voltage comparator circuit, thereby a word plug 120 that is implemented in the microphone of prior art can be compatible when inserting the described port 680 of sound processing apparatus 600 of the present invention, that is in the case, use the microphone person can by regulative mode same as the prior art shown in utilize adjusting knob to regulate each parameter of sound on the control panel of sound processing apparatus 600.
Line traffic control microphone device of the present invention must adopt a kind of operation that utilizes the voltage gradient method to discern the microphone button for realizing the invention effect.The inventor finds in test, not only makes power line but also make the modulation signal carrier wire if the control part 252 of a word plug 250 of the present invention is made into, circuit complexity not only, and can produce interference to faint microphone voice signal.Therefore, line traffic control microphone device of the present invention utilizes a kind of voltage gradient method of inventor's innovation and creation to discern the operation of microphone button, and its principle is as follows:
The voltage comparison unit 320 of line traffic control microphone device of the present invention as shown in Figure 5, comprises some comparator element, and the comparator element number is corresponding with the number of described voltage sampling element, and its input voltage vin is the output voltage V out of described sampling unit 310.Shown in Fig. 4 A, according to ohm theorem, when different key was pressed, Vout can respective change.During as three switches shown in Fig. 4 B that the present invention adopts, the resistance of voltage sampling element is R1, R2, R3 and R4, being calculated as follows of voltage Vout (when supply voltage is 5V)
| When K1 presses | When K2 presses | When D3 presses | |
| Vout | V01＝(R2/ (R1+R2))35V | V02＝((R2+R3)/ (R1+R2+R3))35V | V03＝((R2+R3+R4)/ (R1+R2+R3+R4))35V |
After differently button is pressed, its output voltage difference, as above shown in the table, V01, V02 or V03 when the described voltage comparison unit 320 of input, after the comparison process of each comparator element, according to comparative result at corresponding port A, the signal of B and C output on-off, and this signal is input in the input pin of described microprocessor 330.The value table of its recognition result is as follows:
| Port | When K1 presses | When K2 presses | When K3 presses | No actuation of keys |
| A | 0 | 0 | 0 | 1 |
| B | 0 | 0 | 1 | 1 |
| C | 0 | 1 | 1 | 1 |
Described microprocessor 330 is according to A, B, and the value of C port, the corresponding state that identifies button is carried out the corresponding operational order of this button then.
The operating process of the identification microphone button of line traffic control microphone device of the present invention is as follows:
At first, grounding parts 253, control part 252 and the signal section 251 of being provided with insulated from each other on a word plug 250 of described microphone device; Some sampling elements are formed a voltage sample unit 310 again, be connected with each button of described microphone respectively, and be coupled with described control part 252, this voltage sample unit 310 is arranged on the microphone portion 210 of described microphone; Output in described voltage sample unit 310 inserts a voltage comparison unit 320, as shown in Figure 3A, is used to pick up the sampled voltage of described voltage sample unit 310 outputs, to judge order and the time that is pushed button.Output at described voltage comparison unit 320 inserts a microprocessor 330, this microprocessor 330 is judged the difference of button according to the numerical value of described voltage comparator circuit output, thereby the execution corresponding control programs, the analog quantity regulon 640 of controlling described power amplifying device 600 is regulated each parameter of sound.
The function selecting key 221 of pinning the button portion 220 on the described microphone device reaches a preset time, for example 2 seconds, described microprocessor 330 is through the sequential processes of voltage sample unit 310 and voltage comparison unit 320, the function selecting key 221 that identifies button portion 220 is pressed, after reaching a preset time, microprocessor 330 at first sends control command makes the controlled amplifier of described power amplifying device 600 realize the quiet of microphone, and on display screen, show adjustable parameter item to be selected, as the microphone volume, the microphone reverberation, volume of music etc.; Press first and second adjusting keys 222 and 223 of the button portion 220 of described microphone device again, function choosing-item on the selection function menu up or down, this selection course still must be handled by the identification of described voltage sample unit 310 and voltage comparison unit 320 and microprocessor 330 in proper order; Press described function selecting key 221 then with the selected parameter that will regulate, described microcontroller 330 controls show the selected adjustable parameter and the present numerical value or the numerical simulation chart of this parameter.When at this moment pressing first adjusting key 222, described microprocessor 330 is with regard to the value of consult volume according to its analog quantity regulon 640 correspondences of being controlled of the corresponding lifting of parameter under selected, and chart or the numerical value of while after the growth that demonstrates this parameter correspondence on the display screen; As press second adjusting key 223, described regulon 640 decay of then described microprocessor 330 controls are the numerical value of selected parameter, and with advancing at the chart or the numerical value that show on the display screen after having decayed.
If press described function selecting key 221 once more, described choice menus will switch between the simulation parameter that all need be regulated.
If the described function selecting key 221 of pinning that continues reaches a scheduled time, such as 2 seconds, the parameter adjustment process is withdrawed from 330 controls of described microprocessor, and makes quiet to described microphone of controlled amplifier cancellation in the described power amplifying device, recovers according to the normal play state after regulating.
What deserves to be mentioned is that line traffic control microphone device of the present invention can come identification pulse by described microprocessor 330, i.e. action of button once and continuous level, the action that promptly continues to push button comes described each parameter that need regulate of quick and progressive adjusting.
Be understandable that; for the person of ordinary skill of the art; can make various other distortion or be equal to replacement not breaking away under the situation of the technology of the present invention design according to technical scheme of the present invention, and all these distortion or be equal to the protection range that replacement all just should belong to appended claim of the present invention.
Claims (14)
1, a kind of line traffic control microphone device comprises:
One pick-up head is used to pick up voice signal;
One microphone portion is fixedlyed connected with described head, is provided with:
One button portion; With
One is provided with rear-end output plug, comprises plurality of terminals, is used to transmit from the control signal of described button portion and the voice signal of described pick-up head; And
One Wiring device comprises:
One input seat is with the described output plug coupling that is arranged on the microphone portion tail end; With
An individual word plug is used for and the power amplifying device coupling, it is characterized in that: insulated from each other being provided with of a described word plug:
One signal section is joined with signal terminal on the described output plug, is used for joining with the audio amplification unit that is arranged on described power amplifying device;
One control part is used for the function regulon coupling with described power amplifying device; With
One grounding parts is used for the earthing device coupling with described power amplifying device;
Be provided with a control circuit below the described button portion, include:
One voltage sample unit, the described control part coupling with described microphone device comprises some sampling elements, is used to pick up the operating voltage signal of described button portion;
One voltage comparison unit, its input joins with the described voltage sample unit that the control part with a described word plug is coupled; And
One microprocessor is connected between described voltage comparison unit and the regulating circuit, is used to realize the control to different key functions;
Described control circuit is coupled with described control part, the control part of a described word plug is connected, and is used for realizing different key is made a response.
2, microphone device according to claim 1 is characterized in that, described button portion is made up of touch-switch, comprises:
A function selecting key is used to the various adjustable analog quantity of selecting described power amplifying device to be provided with;
First adjusting key is used to promote the selected analog quantity of described options button; With
Second adjusting key, the selected analog quantity of described options button is used to decay.
3, microphone device according to claim 2 is characterized in that, a described function selecting key is arranged between described first adjusting key and second adjusting key.
4, microphone device according to claim 2 is characterized in that, described button portion links to each other with the described control part of a described word plug.
5, microphone device according to claim 1 is characterized in that, described sampling element polyphone connects.
6, microphone device according to claim 1 is characterized in that, the plurality of keys of forming described microphone device button portion is connected between the grounding parts of a tie point between described some sampling elements and a described word plug.
7, microphone device according to claim 1 is characterized in that, described sampling element and downlink connection.
8, microphone device according to claim 7 is characterized in that, the plurality of keys of forming described microphone device button portion is connected in the branch road of described some sampling elements.
9, microphone device according to claim 6 is characterized in that, described voltage sample unit is arranged in the described microphone device.
10, microphone device according to claim 1 is characterized in that, described voltage sampling element is resistance or diode element.
11, microphone device according to claim 1 is characterized in that, described voltage sampling element is a transistor unit.
12, a kind of method of utilizing voltage gradient method identification microphone button operation comprises:
A) grounding parts, control part and the signal section of being provided with insulated from each other on a word plug of microphone;
B) some sampling elements are formed a voltage sample unit, be connected with each button of described microphone respectively, and be coupled with described control part;
C) output in described voltage sample unit inserts a voltage comparison unit, is used to pick up the sampled voltage of described voltage sample unit output;
D) output at described voltage comparison unit connects a microprocessor, and the analog quantity regulating circuit of this microprocessor and power amplifying device joins;
E) the button portion at described microphone is provided with a function selecting key and two adjusting keys respectively, and this adjusting key is respectively applied for the increase that realizes the control parameter and reduces;
F) continue to press described function selecting key and reach a scheduled time, the controlled amplifier in the described power amplifying device is realized quiet to described microphone;
G) press described options button, further Presentation Function choice menus or indicate described function;
H) press arbitrary adjusting key, the current analog quantity of described function selecting menu is regulated.
13, method according to claim 12, wherein step g) also comprises:
I) press described options button once more, described choice menus switches current analog quantity.
14, method according to claim 12 also comprises:
J) press described options button once more constantly and reach a scheduled time, controlled amplifier cancellation is quiet to described microphone ground in the described power amplifying device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01123038 CN1271885C (en) | 2001-07-13 | 2001-07-13 | Line controlled microphone device and method for recognizing keystroke action by voltage gradient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01123038 CN1271885C (en) | 2001-07-13 | 2001-07-13 | Line controlled microphone device and method for recognizing keystroke action by voltage gradient |
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| CN1398063A CN1398063A (en) | 2003-02-19 |
| CN1271885C true CN1271885C (en) | 2006-08-23 |
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| CN 01123038 Expired - Fee Related CN1271885C (en) | 2001-07-13 | 2001-07-13 | Line controlled microphone device and method for recognizing keystroke action by voltage gradient |
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|---|---|---|---|---|
| CN101650957B (en) * | 2009-07-13 | 2012-07-18 | 周湘峻 | Multimedia player and playing control method thereof |
| CN104954965B (en) * | 2015-05-08 | 2018-08-21 | 华为技术有限公司 | The detection method and device of earphone keystroke |
| CN107968967A (en) * | 2017-11-24 | 2018-04-27 | 容溢川 | A kind of microphone with intelligent control button |
-
2001
- 2001-07-13 CN CN 01123038 patent/CN1271885C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1398063A (en) | 2003-02-19 |
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