CN205302261U - Multicomputer auto -change over device - Google Patents
Multicomputer auto -change over device Download PDFInfo
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- CN205302261U CN205302261U CN201521067547.XU CN201521067547U CN205302261U CN 205302261 U CN205302261 U CN 205302261U CN 201521067547 U CN201521067547 U CN 201521067547U CN 205302261 U CN205302261 U CN 205302261U
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Abstract
The utility model provides a multicomputer auto -change over device. When multicomputer auto -change over device judges that loudspeaker input hole grafting has the earphone microphone, multicomputer auto -change over device will receive / convey voice signal to the loudspeaker delivery outlet of earphone microphone according to the selected signal. In view of the above, the voice signal of earphone microphone is received / transmits to the current loudspeaker jack of multicomputer auto -change over device accessible, and then can save the space of the jack that additionally sets up the earphone microphone.
Description
Technical field
The utility model provides a kind of Kvm, provides the Kvm of a kind of automatic decision microphone aperture especially.
Background technology
Owing to multimedia video technical development obtains quite rapid, market constantly occurs the various Kvm (KVM) with not congenerous, to integrate input-output unit (such as keyboard, mouse, screen etc.) and multiple main frame further. In general, input-output unit links a wherein main frame by Kvm so that user can utilize Kvm to be manipulated by the main frame wanting control.
In addition, Kvm generally can install the loudspeaker input hole of according calculation machine specification, microphone input hole, loudspeaker delivery outlet and microphone delivery outlet. The sound source of the main frame of according calculation machine specification can be plugged to loudspeaker input hole to transmit voice signal to loudspeaker delivery outlet by user, and the head of the trumpet of main frame is plugged to microphone input hole to transmit voice signal to microphone delivery outlet. But, if user wants to utilize ear microphone reception/transmission voice signal on Kvm, then due to jack size (hereinafter referred to as " mobile phone specification ") the not loudspeaker input hole of according calculation machine specification and the microphone input hole of ear microphone (such as the ear microphone that mobile phone uses), therefore the input hole meeting mobile phone specification is installed in the space that need to additionally take Kvm, with reception/transmission voice signal, this is very troublesome.
Therefore, if ear microphone can when existing input hole reception/transmission voice signal, then Kvm will save the space of jack arranging and meeting mobile phone specification.
Practical novel content
The utility model provides a kind of Kvm, and this Kvm is connected between an input-output unit and multiple main frame. Input-output unit is linked by Kvm and controls in multiple main frame. Kvm comprises multiple sound input port, a voice output port, a sound changeover module and a controller. Each sound input port has a loudspeaker input hole and a microphone input hole. Loudspeaker input hole has one first microphone pin position and a playback pin hyte. Microphone input hole has one the 2nd microphone pin position. Sound output mouthpiece has a loudspeaker delivery outlet and a microphone delivery outlet. Sound changeover module is electrically connected multiple sound input port and voice output port. Sound changeover module comprises multiple detection element, a loudspeaker change-over switch and a microphone change-over switch. Multiple detection element is electrically connected multiple sound input port respectively, and the current potential of the first microphone pin position of each detection element detecting correspondence. One end of loudspeaker change-over switch is according to selecting signal be electrically connected in multiple playback pin hyte one, and the other end electrical connection loudspeaker delivery outlet of loudspeaker change-over switch, to link corresponding playback pin hyte and loudspeaker delivery outlet. One end of microphone change-over switch is according to selecting signal be electrically connected in multiple detection element one, and the other end electrical connection microphone delivery outlet of microphone change-over switch, to link corresponding detection element and microphone delivery outlet. Controller electrical connection sound changeover module. Controller receives the current potential of multiple first microphone pin position, and whether the current potential judging the first microphone pin position respectively in each detection element is greater than a reference potential. If when controller judges that the current potential of the first microphone pin position is greater than reference potential, the first microphone pin position of the loudspeaker input hole of the detection element link correspondence that controller control is corresponding and microphone change-over switch.
In the Kvm of above-mentioned automatic decision microphone aperture, detection element described in each can detect the current potential of the 2nd corresponding microphone pin position, controller can receive the current potential of multiple 2nd microphone pin position, and can judge whether the current potential of the first microphone pin position is greater than reference potential and judges whether the current potential of the 2nd microphone pin position is greater than reference potential respectively in each detection element. Current potential when the first microphone pin position is greater than reference potential, and when the current potential of the 2nd microphone pin position is less than or equal to reference potential, the first microphone pin position of the loudspeaker input hole of the detection element link correspondence that controller control is corresponding and microphone change-over switch.
In sum, embodiment of the present utility model provides the Kvm of a kind of automatic decision microphone aperture. When Kvm judges that loudspeaker input hole is plugged with ear microphone, Kvm by according to the voice signal selecting signal to carry out reception/transmission ear microphone to loudspeaker delivery outlet. Accordingly, Kvm carrys out the voice signal of reception/transmission ear microphone by existing loudspeaker jack, and then can save the space of the jack additionally arranging ear microphone.
In order to further understand feature of the present utility model and technology contents, consult following about detailed explanation of the present utility model and accompanying drawing, but explanation below and accompanying drawing are only used for the utility model is described, but not scope of the present utility model is done any restriction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Kvm of the automatic decision microphone aperture of an embodiment of the present utility model.
Fig. 2 is the schematic diagram of the sound changeover module of an embodiment of the present utility model.
Fig. 3 is the schematic diagram of the Kvm of the automatic decision microphone aperture of another embodiment of the present utility model.
Fig. 4 is the schematic diagram of the sound changeover module of another embodiment of the present utility model.
Embodiment
Hereinafter, will illustrate that various illustrative embodiments of the present utility model describes the utility model in detail by accompanying drawing. But, concept of the present utility model may embody in many different forms, and should not be construed as the exemplary embodiments being limited to and setting forth herein. , in the accompanying drawings, in addition identical reference number can in order to represent similar assembly.
According to the potential state of the first microphone pin position of loudspeaker input hole, the Kvm of the automatic decision microphone aperture that embodiment of the present utility model provides can judge whether loudspeaker input hole is plugged with ear microphone (such as the ear microphone that mobile phone uses). In addition, according to the potential state of the potential state of the first microphone pin position of loudspeaker input hole and the 2nd microphone pin position of microphone input hole, Kvm can also judge whether loudspeaker input hole is plugged with ear microphone. Therefore, when Kvm judges that loudspeaker input hole is plugged with ear microphone, its by according to the voice signal selecting signal to carry out reception/transmission ear microphone to loudspeaker delivery outlet. Accordingly, Kvm carrys out the voice signal of reception/transmission ear microphone by existing loudspeaker jack, and then can save the space of the jack additionally arranging ear microphone. The Kvm of the automatic decision microphone aperture that embodiment of the present utility model provides will be introduced further below.
First, with reference to figure 1, the schematic diagram of the Kvm of the automatic decision microphone aperture of its display embodiment of the present utility model. As shown in Figure 1, Kvm 100 comprises a control changeover module 110, multiple sound input port Vin1, Vin2, a voice output port Vout, a sound changeover module 120 and controller 130. Control changeover module 110 is connected between input-output unit 10 and multiple main frame 20,30. When controlling the control signal Sel that changeover module 110 receives represented in these main frames 20,30 of control, the main frame (such as main frame 20) of correspondence is linked to input-output unit 10 according to control signal Sel by control changeover module 110, to carry out Signal transmissions between the main frame of correspondence (such as main frame 20) and input-output unit 10. And described input-output unit 10 can be mouse, keyboard, indicating meter or game handle etc., this is not restricted by the utility model.
Sound input port Vin1 has loudspeaker input hole SPK1 and microphone input hole MIC1. Loudspeaker input hole SPK1 has the first microphone pin position m1 and playback pin hyte S1, and microphone input hole MIC1 has the 2nd microphone pin position m2. Sound input port Vin2 has loudspeaker input hole SPK2 and microphone input hole MIC2. Loudspeaker input hole SPK2 has the first microphone pin position m3 and playback pin hyte S2, and microphone input hole MIC2 has the 2nd microphone pin position m4. Voice output port Vout then has loudspeaker delivery outlet SPK3 and microphone delivery outlet MIC3.
Further, loudspeaker input hole SPK1 and SPK2 is for be made up of multiple pin position. First microphone pin position m1 is arranged in of multiple pin positions of loudspeaker input hole SPK1, and playback pin hyte S1 is positioned at other pin positions of loudspeaker input hole SPK1. First microphone pin position m3 is arranged in of multiple pin positions of loudspeaker input hole SPK2, and playback pin hyte S2 is positioned at other pin positions of loudspeaker input hole SPK2. Similarly, microphone input hole MIC1 and MIC2 is made up of multiple pin position equally. 2nd microphone pin position m2 is arranged in of multiple pin positions of microphone input hole MIC1. 2nd microphone pin position m4 is arranged in of multiple pin positions of microphone input hole MIC2.
In the present embodiment, playback pin hyte S1 and S2 comprises such as left sound channel pin position, right sound channel pin position and grounding leg position, to be plugged to corresponding loudspeaker input hole (as main frame 20 is plugged to loudspeaker input hole SPK1 at main frame, and main frame 30 is plugged to loudspeaker input hole SPK2 (not shown in figures)) time, main frame can transmit voice signal to loudspeaker delivery outlet SPK3 by the loudspeaker input hole of correspondence. And the embodiment about the 2nd microphone pin position m2 and the m4 of first microphone pin position m1 and the m3 and microphone input hole MIC1 and MIC2 of loudspeaker input hole SPK1 and SPK2 can be illustrated by follow-up embodiment, therefore do not repeat them here.
Sound changeover module 120 is electrically connected sound input port Vin1, Vin2 and voice output port Vout, optionally the voice signal that sound input port Vin1, Vin2 receive to be sent to voice output port Vout according to selection signal Sel. Sound changeover module 120 comprises multiple detection element 122 and 124, loudspeaker change-over switch 126 and a microphone change-over switch 128. Detection element 122 is electrically connected sound input port Vin1 and Vin2 respectively with 124. The current potential of the first microphone pin position that each detection element 122 is corresponding with 124 detectings, namely detection element 122 detects the current potential of the first microphone pin position m1, and detection element 124 detects the current potential of the first microphone pin position m3, and detecting result Vr1 and Vr3 is sent to controller 130, do further judgement for controller 130.
It is noted that the first microphone pin position m3 of the first microphone pin position m1 and loudspeaker input hole SPK2 of loudspeaker input hole SPK1 meets the jack size (hereinafter referred to as " mobile phone specification ") of ear microphone. The playback pin hyte S2 according calculation machine specification of the playback pin hyte S1 and loudspeaker input hole SPK2 of loudspeaker input hole SPK1. The 2nd microphone pin position m2 of microphone input hole MIC1 and MIC2 and m4 according calculation machine specification.
Therefore, when the sound source of the main frame 20 of according calculation machine specification is plugged to loudspeaker input hole SPK1, due to the sound source of main frame 20 and do not meet mobile phone specification, so detection element 122 can not detect the current potential of the first microphone pin position m1. Similarly, when the sound source of the main frame 30 of according calculation machine specification is plugged to loudspeaker input hole SPK2, due to the sound source of main frame 30 and do not meet mobile phone specification, so detection element 124 can not detect the current potential of the first microphone pin position m3.
Otherwise, when the microphone head of the ear microphone meeting mobile phone specification is plugged to loudspeaker input hole SPK1, owing to the microphone head of ear microphone meets mobile phone specification, so detection element 122 can detect the current potential of the first microphone pin position m1. Similarly, when the microphone head of the ear microphone meeting mobile phone specification is plugged to loudspeaker input hole SPK2, owing to the microphone head of ear microphone meets mobile phone specification, so detection element 124 can detect the current potential of the first microphone pin position m3.
Controller 130 is electrically connected control changeover module 110 and sound changeover module 120. Controller 130 receives detecting result Vr1 and the Vr3 of each detection element 122 and 124, the i.e. current potential of the first microphone pin position m1 and m3, and in each detection element 122 and 124, judge whether the current potential of the first microphone pin position m1 and m3 is greater than a reference potential respectively.
If when controller 130 judges that the current potential of the first microphone pin position is greater than reference potential, then the detection element representing corresponding detects the current potential of the first microphone pin position, and namely the microphone head of ear microphone is plugged to corresponding loudspeaker input hole. Now, controller 130 will produce the detection element controlling signal to correspondence of high levle, to control the first microphone pin position and the microphone change-over switch that corresponding detection element links corresponding loudspeaker input hole accordingly. For example, reference potential is set as 0V. If when controller 130 judges that the current potential of the first microphone pin position m1 is greater than reference potential (i.e. 0V), then represent that the microphone head of ear microphone is plugged on corresponding loudspeaker input hole SPK1, controller 130 by produce high levle control signal Tr1 to detection element 122, to control the first microphone pin position m1 and microphone change-over switch 128 that detection element 122 links corresponding loudspeaker input hole SPK1.
On the contrary, if when controller 130 judges that the current potential of the first microphone pin position is less than or equal to reference potential, the detection element then representing corresponding can not detect the current potential of the first microphone pin position, and namely the microphone head of ear microphone is not plugged to corresponding loudspeaker input hole. Now, controller 130 will produce the detection element controlling signal to correspondence of low level, to control the 2nd microphone pin position and the microphone change-over switch that corresponding detection element links corresponding microphone input hole accordingly. For example, reference potential is set as 0V. If when controller 130 judges that the current potential of the first microphone pin position m3 is less than or equal to reference potential (i.e. 0V), table then shows that the microphone head of ear microphone is not plugged on corresponding loudspeaker input hole SPK2, controller 130 by produce low level control signal Tr2 to detection element 122, to control the 2nd microphone pin position m4 and the microphone change-over switch 128 that detection element 124 links corresponding microphone input hole MIC2.
Simultaneously with reference to figure 2, in the present embodiment, detection element 122 comprises a direct current detection element 122a and and judges switch 122b. Direct current detection element 122a is electrically connected the first corresponding microphone pin position m1, and the current potential of the first microphone pin position m1 of detecting correspondence, to produce detecting result Vr1 to controller 130. And person of an ordinary skill in the technical field should know the internal structure of direct current detection element 122a and indivedual running, therefore do not repeat them here. Judge that switch 122b is electrically connected the first corresponding microphone pin position m1 and the 2nd corresponding microphone pin position m2. And judge according to controller 130, switch 122b judges whether the current potential of the first microphone pin position m1 is greater than the result (i.e. control signal Tr1) of reference potential and the 2nd microphone pin position m2 of the first microphone pin position m1 of correspondence or correspondence is linked microphone change-over switch 128. That is, when controller 130 judges that the current potential of the first microphone pin position m1 is greater than reference potential, the control signal Tr1 producing high levle is extremely judged switch 122b. Judge that switch 122b will link the first microphone pin position m1 and microphone change-over switch 128 accordingly. And when controller 130 judges that the current potential of the first microphone pin position m1 is less than or equal to reference potential, the control signal Tr1 producing low level is extremely judged switch 122b. Judge that switch 122b will link the 2nd microphone pin position m2 and microphone change-over switch 128 accordingly.
Moreover, detection element 124 comprises a direct current detection element 124a and and judges switch 124b. Direct current detection element 124a is electrically connected the first corresponding microphone pin position m3, and the current potential of the first microphone pin position m3 of detecting correspondence, to produce detecting result Vr3 to controller 130. Judge that switch 124b is electrically connected the first corresponding microphone pin position m3 and the 2nd corresponding microphone pin position m4. And judge according to controller 130, switch 124b judges whether the current potential of the first microphone pin position m3 is greater than the result (i.e. control signal Tr2) of reference potential and the 2nd microphone pin position m4 of the first microphone pin position m3 of correspondence or correspondence is linked microphone change-over switch 128. About direct current detection element 124a, the function mode of switch 124b by direct current detection element 122a and can judge that switch 122b pushes away with judging, therefore does not repeat them here.
One end of loudspeaker change-over switch 126 is according to selecting signal Sel be electrically connected in multiple playback pin hyte S1 and S2 one, and its other end electrical connection loudspeaker delivery outlet SPK3, to link corresponding playback pin hyte (i.e. playback pin hyte S1 or S2) and loudspeaker delivery outlet SPK3. Therefore, when receiving the selection signal Sel representing and linking playback pin hyte S1 when loudspeaker change-over switch 126, playback pin hyte S1 and loudspeaker delivery outlet SPK3 will be linked accordingly. And the main frame 20 being plugged on loudspeaker input hole SPK1 will transmit voice signal to loudspeaker delivery outlet SPK3 by loudspeaker change-over switch 126. Similarly, when receiving the selection signal Sel representing and linking playback pin hyte S2 when loudspeaker change-over switch 126, playback pin hyte S2 and loudspeaker delivery outlet SPK3 will be linked accordingly. And the main frame 30 being plugged on loudspeaker input hole SPK2 will transmit voice signal to loudspeaker delivery outlet SPK3 by loudspeaker change-over switch 126.
One end of microphone change-over switch 128 is according to selecting signal Sel be electrically connected in multiple detection element 122 and 124 one, and its other end electrical connection microphone delivery outlet MIC3, to link corresponding detection element (i.e. detection element 122 or 124) and microphone delivery outlet (SPK3). Therefore, when receiving the selection signal Sel representing and linking detection element 122 when microphone change-over switch 128, detection element 122 and microphone delivery outlet MIC3 will be linked accordingly. Now, the potential state of the first microphone pin position m1 according to loudspeaker input hole SPK1 is transmitted the voice signal received by loudspeaker input hole SPK1 or microphone input hole MIC1 (function mode as between the detection element 122 of above-described embodiment and controller 130) to microphone delivery outlet MIC3 by detection element 122. Similarly, when receiving the selection signal Sel representing and linking detection element 124 when microphone change-over switch 128, detection element 124 and microphone delivery outlet MIC3 will be linked accordingly. Now, the potential state of the first microphone pin position m3 according to loudspeaker input hole SPK2 is transmitted the voice signal received by loudspeaker input hole SPK1 or microphone input hole MIC1 (function mode as between the detection element 124 of above-described embodiment and controller 130) to microphone delivery outlet MIC3 by detection element 124.
In the present embodiment, select signal Sel for producing by an external controls manipulation controller 130, to control the action of changeover module 110, loudspeaker change-over switch 126 and microphone change-over switch 128 further. Selecting signal Sel also directly can not be produced by external controls by controller 130, this is not restricted by the utility model.
, as shown in Figure 1, in addition sound changeover module 120 can comprise a signal amplifier 129 further. Signal amplifier 129 is connected electrically between loudspeaker change-over switch 126, microphone change-over switch 128 and voice output port Vout, to strengthen the signal by signal amplifier 129, namely strengthen the voice signal transmitted by loudspeaker change-over switch 126 and microphone change-over switch 128. Further, as shown in Figure 2, signal amplifier 129 has two amplifier Amp1 and Amp2. The input terminus electrical connection loudspeaker change-over switch 126 of amplifier Amp1, and its output terminal electrical connection loudspeaker delivery outlet SPK3, to strengthen the voice signal transmitted by loudspeaker change-over switch 126. The input terminus electrical connection loudspeaker change-over switch 128 of amplifier Amp2, and its output terminal electrical connection microphone delivery outlet MIC3, to strengthen the voice signal transmitted by microphone change-over switch 128.
Therefore from the above, according to the potential state of the first microphone pin position of loudspeaker input hole, the Kvm of the automatic decision microphone aperture that embodiment of the present utility model provides can judge whether loudspeaker input hole is plugged with ear microphone (such as the ear microphone that mobile phone uses). Therefore, when controller judges that loudspeaker input hole is plugged with the ear microphone meeting mobile phone specification, its by according to the voice signal selecting signal to carry out reception/transmission ear microphone to loudspeaker delivery outlet. Accordingly, Kvm carrys out, by existing loudspeaker jack, the voice signal that reception/transmission meets the ear microphone of mobile phone specification, and then can save the space of the jack additionally arranging ear microphone.
Come again, with reference to figure 3, the schematic diagram of the Kvm of the automatic decision microphone aperture of its display another embodiment of the present utility model. compared to the Kvm described in Fig. 1, the difference of the Kvm 200 of the present embodiment is, the current potential of the first microphone pin position that each detection element 222 is corresponding with 224 detectings and the current potential of the 2nd microphone pin position, namely detection element 222 detects the current potential of the first microphone pin position m1 and the current potential of the 2nd microphone pin position m2, and detection element 124 detects the current potential of the first microphone pin position m3 and the current potential of the 2nd microphone pin position m4, and result Vr1 will be detected, Vr2, Vr3 and Vr4 is sent to controller 230, further judgement is done for controller 230.
Controller 230 receives the detecting result Vr1-Vr4 of each detection element 222 and 224, the i.e. current potential of the first microphone pin position m1 and m3 and the current potential of the 2nd microphone pin position m2 and m4, and in each detection element 222 and 224, judge whether the current potential of the first microphone pin position is greater than a reference potential and judges whether the current potential of the 2nd microphone pin position is more than or equal to reference potential respectively.
If the current potential that controller 230 judges the first microphone pin position is greater than reference potential, and the 2nd current potential of microphone pin position when being less than or equal to reference potential, the detection element then representing corresponding detects the current potential of the first microphone pin position and does not detect the current potential of the 2nd microphone pin position, and namely the microphone head of ear microphone is plugged to corresponding loudspeaker input hole. Now, controller 230 will produce the detection element controlling signal to correspondence of high levle, to control the first microphone pin position and the microphone change-over switch that corresponding detection element links corresponding loudspeaker input hole accordingly. Roughly going up the controller 130 with previous embodiment about the action of the judged result of above-mentioned controller 230, to judge that the current potential of the first microphone pin position is greater than the action after reference potential identical, therefore does not repeat them here.
If the current potential that controller 230 judges the first microphone pin position is less than or equal to reference potential, and the 2nd current potential of microphone pin position when being greater than reference potential, the detection element then representing corresponding does not detect the current potential of the first microphone pin position and detects the current potential of the 2nd microphone, and namely the microphone head of ear microphone is not plugged to corresponding loudspeaker input hole. Now controller 230 will produce the detection element controlling signal to correspondence of low level, to control the 2nd microphone pin position and the microphone change-over switch that corresponding detection element links corresponding microphone input hole accordingly. Roughly going up the controller 130 with previous embodiment about the action of the judged result of above-mentioned controller 230, to judge that the current potential of the first microphone pin position is less than or equal to the action after reference potential identical, therefore does not repeat them here.
If the current potential that controller 230 judges the first microphone pin position is less than or equal to reference potential, and the 2nd current potential of microphone pin position when being less than or equal to reference potential, then controller 230 will produce the detection element controlling signal to correspondence of low level, to control the 2nd microphone pin position and the microphone change-over switch that corresponding detection element links corresponding microphone input hole accordingly. Roughly going up the controller 130 with previous embodiment about the action of the judged result of above-mentioned controller 230, to judge that the current potential of the first microphone pin position is less than or equal to the action after reference potential identical, therefore does not repeat them here.
If the current potential that controller 230 judges the first microphone pin position is greater than reference potential, and the 2nd current potential of microphone pin position when being greater than reference potential, then controller 230 will produce the detection element controlling signal to correspondence of high levle, to control the first microphone pin position and the microphone change-over switch that corresponding detection element links corresponding loudspeaker input hole accordingly. Roughly going up the controller 130 with previous embodiment about the action of the judged result of above-mentioned controller 230, to judge that the current potential of the first microphone pin position is greater than the action after reference potential identical, therefore does not repeat them here.
Simultaneously with reference to figure 4, in the present embodiment, detection element 222 comprises one first direct current detection element 222a, one the 2nd direct current detection element 222c and judges switch 222b. First direct current detection element 222a is electrically connected the first corresponding microphone pin position m1, and the current potential m1 of the first microphone pin position of detecting correspondence, to produce detecting result Vr1 to controller 230. 2nd direct current detection element 222c is electrically connected the 2nd corresponding microphone pin position m2, and the current potential of the 2nd microphone pin position m2 of detecting correspondence, to produce detecting result Vr2 to controller 230. Judge that switch 222b is electrically connected the first corresponding microphone pin position m1 and the 2nd corresponding microphone pin position m2. And judge according to controller 230, switch 222b will judge whether the current potential whether current potential of the first microphone pin position m1 is more than or equal to reference potential and the 2nd microphone pin position is more than or equal to the result (i.e. control signal Tr1) of reference potential, the 2nd microphone pin position m2 of the first microphone pin position m1 of correspondence or correspondence is linked microphone change-over switch 228. Identical about judging the action of switch 222b and roughly go up the judgement switch 122b with previous embodiment, therefore do not repeat them here.
In addition, roughly go up with signal amplifier 229 identical with signal amplifier 129 with detection element 124, loudspeaker change-over switch 126, the microphone change-over switch 128 of previous embodiment about detection element 224, loudspeaker change-over switch 226, microphone change-over switch 228, therefore do not repeat them here equally.
Therefore from the above, according to the potential state of the potential state of the first microphone pin position of loudspeaker input hole and the 2nd microphone pin position of microphone input hole, the Kvm of the automatic decision microphone aperture that embodiment of the present utility model provides can judge whether loudspeaker input hole is plugged with ear microphone (such as the ear microphone that mobile phone uses). Therefore, when controller judges that loudspeaker input hole is plugged with the ear microphone meeting mobile phone specification, its by according to the voice signal selecting signal to carry out reception/transmission ear microphone to loudspeaker delivery outlet. Accordingly, Kvm carrys out, by existing loudspeaker jack, the voice signal that reception/transmission meets the ear microphone of mobile phone specification, and then can save the space of the jack additionally arranging ear microphone.
It will be understood that embodiment described above is only preferred embodiment of the present utility model, scope of the present utility model can not be limited with this. Therefore, the impartial change done according to the utility model scope or modification, still in the scope that the utility model is contained.
Description of reference numerals
100,200: multicomputer switching dress S1: playback pin hyte is put
110,210: control changeover module S2: playback pin hyte
120,220: sound changeover module m1: the first microphone pin position
130,230: controller m2: the two microphone pin position
122, the 222: detection element m3: the first microphone pin position
124, the 224: detection element m4: the two microphone pin position
126,226: loudspeaker change-over switch Vr1, Vr2: detecting result
128,228: microphone change-over switch Vr3, Vr4: detecting result
129,229: signal amplifier Tr1: control signal
Vin1: sound input port Tr2: control signal
SPK1: loudspeaker input hole Sel: select signal
MIC1: microphone input hole 122a: direct current detection element
Vin2: sound input port 222a: the first direct current detection element
SPK2: loudspeaker input hole 222c: the two direct current detection element
MIC2: microphone input hole 122b, 222b: judge switch
Vout: voice output port 124a: direct current detection element
SPK3: loudspeaker delivery outlet 224a: the first direct current detection element
MIC3: microphone delivery outlet 224c: the two direct current detection element
10: input-output unit 124b, 224b: judge switch
Amp1: amplifier Amp2: amplifier
20,30: main frame
Claims (9)
1. a Kvm, it is connected between an input-output unit and multiple main frame, this input-output unit is linked by this Kvm and controls in described multiple main frame, it is characterised in that, this Kvm comprises:
Multiple sound input port, each sound input port has a loudspeaker input hole and a microphone input hole, and this loudspeaker input hole has one first microphone pin position and a playback pin hyte, and this microphone input hole has one the 2nd microphone pin position;
One voice output port, has a loudspeaker delivery outlet and a microphone delivery outlet;
One sound changeover module, is electrically connected described multiple sound input port and this voice output port, comprising:
Multiple detection element, is electrically connected described multiple sound input port respectively, and the current potential of the first microphone pin position of each detection element detecting correspondence;
One loudspeaker change-over switch, one end of described loudspeaker change-over switch connects in these playback pin hytes according to a selection signal caller, and the other end of described loudspeaker change-over switch is electrically connected this loudspeaker delivery outlet, to link corresponding playback pin hyte and loudspeaker delivery outlet;
One microphone change-over switch, one end of described microphone change-over switch is according in this selection signal described multiple detection element of electrical connection, and the other end of described microphone change-over switch is electrically connected this microphone delivery outlet, to link corresponding detection element and microphone delivery outlet; And
One controller, is electrically connected this sound changeover module, receives the current potential of these the first microphone pin positions, and whether the current potential judging the first microphone pin position respectively in each detection element is greater than a reference potential;
Wherein, if when this controller judges that the current potential of the first microphone pin position is greater than this reference potential, then the detection element that the control of this controller is corresponding links the first microphone pin position and the microphone change-over switch of corresponding loudspeaker input hole.
2. Kvm according to claim 1, it is characterized in that, if when this controller judges that the current potential of the first microphone pin position is less than or equal to this reference potential, then the detection element that the control of this controller is corresponding links the 2nd microphone pin position and the microphone change-over switch of corresponding microphone input hole.
3. Kvm according to claim 1, it is characterised in that, each detection element comprises:
The current potential of the first microphone pin position that one direct current detection element, the first microphone pin position that electrical connection is corresponding, and detecting are corresponding; And
One judges switch, the first microphone pin position that electrical connection is corresponding and the 2nd corresponding microphone pin position, and judge whether the current potential of this first microphone pin position is greater than the result of this reference potential and the 2nd microphone pin position of the first microphone pin position of correspondence or correspondence is linked microphone change-over switch according to this controller.
4. Kvm according to claim 1, it is characterized in that, the current potential of the 2nd microphone pin position that the detecting of each detection element is corresponding, this controller receives the current potential of these the 2nd microphone pin positions, and whether the current potential judging the first microphone pin position respectively in each detection element is greater than this reference potential and judges whether the current potential of the 2nd microphone pin position is more than or equal to this reference potential, wherein current potential when this first microphone pin position is greater than this reference potential, and the 2nd current potential of microphone pin position when being less than or equal to this reference potential, first microphone pin position of the loudspeaker input hole of the detection element link correspondence that the control of this controller is corresponding and microphone change-over switch.
5. Kvm according to claim 4, it is characterized in that, current potential when the first microphone pin position is less than or equal to this reference potential, and the 2nd current potential of microphone pin position when being greater than this reference potential, detection element corresponding to this controller control links the 2nd microphone pin position and the microphone change-over switch of corresponding microphone input hole.
6. Kvm according to claim 4, it is characterized in that, current potential when the first microphone pin position is less than or equal to this reference potential, and the 2nd current potential of microphone pin position when being less than or equal to this reference potential, detection element corresponding to this controller control links the 2nd microphone pin position and the microphone change-over switch of corresponding microphone input hole.
7. Kvm according to claim 4, it is characterized in that, current potential when the first microphone pin position is greater than this reference potential, and the 2nd current potential of microphone pin position when being greater than this reference potential, detection element corresponding to this controller control links the first microphone pin position and the microphone change-over switch of corresponding loudspeaker input hole.
8. Kvm according to claim 4, it is characterised in that, this detection element each comprises:
The current potential of the first microphone pin position that one first direct current detection element, the first microphone pin position that electrical connection is corresponding, and detecting are corresponding;
The current potential of the 2nd microphone pin position that one the 2nd direct current detection element, the 2nd microphone pin position that electrical connection is corresponding, and detecting are corresponding; And
One judges switch, the first microphone pin position that electrical connection is corresponding and the 2nd corresponding microphone pin position, and judge whether the current potential whether current potential of the first microphone pin position is greater than this reference potential and the 2nd microphone pin position is greater than the result of this reference potential according to this controller, the 2nd microphone pin position of the first microphone pin position of correspondence or correspondence is linked microphone change-over switch.
9. Kvm according to claim 1, it is characterized in that, this sound changeover module comprises a signal amplifier further, this signal amplifier is connected electrically between this loudspeaker change-over switch, this microphone change-over switch and this voice output port, to strengthen the signal by this signal amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067547.XU CN205302261U (en) | 2015-12-18 | 2015-12-18 | Multicomputer auto -change over device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067547.XU CN205302261U (en) | 2015-12-18 | 2015-12-18 | Multicomputer auto -change over device |
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| Publication Number | Publication Date |
|---|---|
| CN205302261U true CN205302261U (en) | 2016-06-08 |
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|---|---|---|---|
| CN201521067547.XU Active CN205302261U (en) | 2015-12-18 | 2015-12-18 | Multicomputer auto -change over device |
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| Country | Link |
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| CN (1) | CN205302261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113542975A (en) * | 2021-07-02 | 2021-10-22 | 南昌华勤电子科技有限公司 | Audio signal switching circuit and electronic equipment |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113542975A (en) * | 2021-07-02 | 2021-10-22 | 南昌华勤电子科技有限公司 | Audio signal switching circuit and electronic equipment |
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