CN203251412U - Device capable of using power source of electronic equipment to supply power to automatic noise cancellation (ANC) earphone - Google Patents
Device capable of using power source of electronic equipment to supply power to automatic noise cancellation (ANC) earphone Download PDFInfo
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- CN203251412U CN203251412U CN 201320268313 CN201320268313U CN203251412U CN 203251412 U CN203251412 U CN 203251412U CN 201320268313 CN201320268313 CN 201320268313 CN 201320268313 U CN201320268313 U CN 201320268313U CN 203251412 U CN203251412 U CN 203251412U
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Abstract
The utility model discloses a device capable of using the power source of electronic equipment to supply power to an automatic noise cancellation (ANC) earphone. The device comprises the automatic noise cancellation (ANC) earphone and the electronic equipment. The automatic noise cancellation (ANC) earphone comprises a detection and control module A and a switch module A; the detection and control module A is connected with an earphone plug; and a noise cancellation circuit and a hands-free microphone circuit are both connected with the earphone plug through the switch module A. The electronic equipment comprises a detection and control module B and a switch module B; the detection and control module B is connected with an earphone socket; and an audio module and a power supply module are both connected with the earphone socket through the switch module B. With the device of the utility model adopted, the automatic noise cancellation (ANC) earphone can directly obtain electricity from the electronic equipment, such that the automatic noise cancellation (ANC) earphone can be advantageous in simple structure, portable convenience, suitability for mass production, low production cost and high compatibility.
Description
Technical field
The utility model relates to a kind of power supply of electronic equipment that utilizes to the equipment of ANC earphone power supply, belongs to field of audio devices.
Background technology
Along with the appearance of all kinds of intelligent electronic devices with popularize, earphone has become considerable electronic equipment accessory in people's daily life.But noisy environment can reduce people greatly utilizes earphone to receive the accuracy of acoustic information, particularly for often go on business, the business people of airplane, squeeze the working clan of subway, public transport, and the indoor gang of office of central air-conditioning.Therefore, the demand of noise cancelling headphone also increases rapidly.
ANC(Active Noise Cancellation, initiatively anti-noise) earphone is a kind of as noise cancelling headphone, is different from common headphones, and the ANC earphone also is provided with for the noise canceller circuit of eliminating noise outside existing headset plug and audio playing unit.This noise like is eliminated circuit and need to be used special power supply to power, and this power supply comprises battery and voltage transitions and voltage stabilizing circuit usually, makes overall dimension, weight and the cost of earphone compare all to some extent increase with common headphones.In addition, cell voltage commonly used generally is not suitable for directly driving this noise like and eliminates circuit, therefore noise canceller circuit also needs to comprise a DC-DC voltage conversion circuit and regulates and stable cell voltage, it is reached be fit to the scope that noise canceller circuit uses, this is just so that the structure complicated of ANC earphone, cause amount of parts more, be difficult for large-scale production, again increased overall dimension, weight and the cost of earphone, and be not easy to the user and use and to carry etc.
In the prior art, a kind of power supply of electronic equipment that directly utilizes is arranged to the technology of noise cancelling headphone power supply, namely in the earphone socket of electronic equipment, power pin is set, headset plug at noise cancelling headphone arranges power end, power on cooperating of source next noise canceller circuit power supply in earphone by power pin in the earphone socket and headset plug.This kind method need to change the plug and socket structure of earphone, the i.e. headset plug of 5 utmost points and socket, want to realize decrease of noise functions, must support the use described 5 utmost point plugs and 5 pole sockets, even abandon decrease of noise functions, described earphone can not be connected use with ordinary electronic equipment (4 utmost point earphone socket), reduced the compatibility of earphone, electronic equipment.
The utility model content
The purpose of this utility model is, provide a kind of power supply of electronic equipment that utilizes to the equipment of ANC earphone power supply, it can make the ANC earphone directly from the power supply power taking of electronic equipment, need not to arrange separately power supply and power-switching circuit, the ANC earphone is had simple in structure, be easy to carry, be suitable for large-scale production, and the low advantage of production cost; Compare with 5 utmost point headset plugs and socket, have the characteristics of highly compatible.
The technical solution of the utility model: a kind of power supply of electronic equipment that utilizes comprises ANC earphone and electronic equipment to the equipment of ANC earphone power supply; Described ANC earphone comprises headset plug, audio playing unit, noise canceller circuit and hands-free microphone circuit, described headset plug comprises grounding pin A, microphone pin A, L channel pin A and R channel pin A, and described noise canceller circuit comprises power end, L channel end A and R channel end A; Described electronic equipment comprises audio-frequency module, power module and earphone socket, described earphone socket comprises grounding pin B, microphone pin B, L channel pin B and R channel pin B, audio-frequency module comprises microphone end, L channel end B and R channel end B, the ANC earphone also comprises detection and control module A and switch module A, detection and control module A are connected with headset plug, and noise canceller circuit, hands-free microphone circuit all are connected with headset plug by switch module A; Electronic equipment also comprises detection and control module B, switch module B, and detection and control module B are connected with earphone socket, and audio-frequency module, power module all are connected with earphone socket by switch module B.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, power module is connected with microphone pin B by switch module B, L channel end B is connected with L channel pin B by switch module B, R channel end B is connected with R channel pin B by switch module B, microphone pin A is connected with power end by switch module A, L channel pin A is connected with L channel end A by switch module A, and R channel pin A is connected with R channel end A by switch module A.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, power module is connected with L channel pin B by switch module B, the microphone end is connected with microphone pin B by switch module B, R channel end B is connected with R channel pin B by switch module B, microphone pin A is connected with the hands-free microphone circuit by switch module A, L channel pin A is connected with power end by switch module A, and R channel pin A is connected with L channel end A, R channel end A respectively by switch module A.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, power module is connected with R channel pin B by switch module B, the microphone end is connected with microphone pin B by switch module B, L channel end B is connected with L channel pin B by switch module B, microphone pin A is connected with the hands-free microphone circuit by switch module A, L channel pin A is connected with L channel end A, R channel end A respectively by switch module A, and R channel pin A is connected with power end by switch module A.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, power module is connected with microphone pin B by switch module B, the microphone end is connected with L channel pin B by switch module B, microphone pin A is connected with power end by switch module A, L channel pin A is connected with the hands-free microphone circuit by switch module A, and R channel pin A is connected with R channel end A with L channel end A respectively by switch module A.Can from the L channel end B of audio-frequency module and R channel end B, select a sound channel end to be connected to the R channel pin B of earphone socket, be used for left channel signals or the right-channel signals that the transmission of audio module sends.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, power module is connected with microphone pin B by switch module B, the microphone end is connected with R channel pin B by switch module B, microphone pin A is connected with power end by switch module A, R channel pin A is connected with the hands-free microphone circuit by switch module A, and L channel pin A is connected with R channel end A with L channel end A respectively by switch module A.Can from the L channel end B of audio-frequency module and R channel end B, select a sound channel end to be connected to the L channel pin B of earphone socket, be used for left channel signals or the right-channel signals that the transmission of audio module sends.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, the microphone end is connected with microphone pin B by switch module B, L channel end B is connected with L channel pin B by switch module B, R channel end B is connected with R channel pin B by switch module B, microphone pin A is connected with the hands-free microphone circuit by switch module A, and L channel pin A, R channel pin A all are connected with audio playing unit by switch module A.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and detection and control module A are connected with microphone pin A, L channel pin A or the R channel pin A of headset plug.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and detection and control module B are connected with microphone pin B, L channel pin B or the R channel pin B of earphone socket.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and described ANC earphone comprises the electrical power storage module, and the electrical power storage module is connected with switch module A with power end, detection and control module A respectively and is connected.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and noise canceller circuit, detection and control module A and switch module A are integrated on the same chip.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and noise canceller circuit, detection and control module A, switch module A and electrical power storage module integration are on same chip.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and detection and control module B and switch module B are integrated on the same chip.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, described headset plug comprises header body and the base that is connected with header body, has at least one to be installed in the base in noise canceller circuit, detection and control module A, switch module A and the electrical power storage module.
The aforesaid power supply that utilizes electronic equipment has at least in the described audio playing unit in noise canceller circuit, detection and control module A, switch module A and the electrical power storage module in the equipment of ANC earphone power supply.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, described ANC earphone also comprises and being connected between described headset plug and the described audio playing unit, is used for controlling the control unit of on off state, broadcast volume and the broadcast tonequality of described audio playing unit.
The aforesaid power supply that utilizes electronic equipment has at least one to be installed in the described control unit in noise canceller circuit, detection and control module A, switch module A and the electrical power storage module in the equipment of ANC earphone power supply.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, have one in noise canceller circuit, detection and control module A, switch module A and the electrical power storage module at least and be connected between described headset plug and the described control unit, or wherein have at least one to be connected between described control unit and the described audio playing unit.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and described ANC earphone also comprises hand switch or motor switch, is used to open or close the ANC pattern of ANC earphone, and described hand switch or motor switch can be arranged on the described control unit.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, if replace automatic testing method with manual system of selection, detection and control module A and switch module A can be reduced to manual hardware switch, are used for opening or closing listen mode, the dialogue mode of ANC earphone.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and described electronic equipment also comprises control device, is used for the opening or closing of power module, and detects and control module B, switch module B control.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and described control device is hardware, software module or firmware, and described control device also is used for arranging and regulating the running parameter of ANC earphone.
The aforesaid power supply of electronic equipment that utilizes is in the equipment of ANC earphone power supply, if replace automatic testing method with manual system of selection, detection and control module B and switch module B can be reduced to manual hardware switch or man-machine interface switch, are used for opening or closing listen mode, dialogue mode and the ANC pattern of electronic equipment.
The aforesaid power supply that utilizes electronic equipment is in the equipment of ANC earphone power supply, and described electronic equipment has dialogue function, and described electronic equipment includes but not limited to any one in mobile phone, PC, notebook computer, the panel computer.
Compared with prior art, the utility model utilizes L channel pin, R channel pin or the microphone pin of earphone socket to come the power module of connecting electronic equipment, can make the ANC earphone directly from the power supply power taking of electronic equipment, can remove battery and DC-DC voltage conversion circuit and voltage stabilizing circuit in the ANC earphone control unit, simplify the control unit structure, make it have less overall dimension, reduce weight and cost, be easy to carry, be suitable for large-scale production.
The utility model utilizes the left and right sound channels of electronic equipment earphone socket to supply power supply to the ANC earphone, rather than utilizes the reason of microphone pin as follows under dialogue mode:
Take mobile phone as example, the bias voltage that the mobile microphone circuit provides approximately is 3V, also has the resistance of an about 2k ohm between the microphone pin of this bias voltage and socket.If utilize microphone pin, supply power supply and receive the microphone signal that earphone sends for earphone simultaneously, can produce following problem.
Suppose electric current that head circuit consumes at 0～0.2 milliampere, the voltage drop of crossing over the 2k Ohmic resistance is 0～0.4V, and this voltage drop 0.4V is 13% of the bias voltage 3V that provides of mobile microphone circuit.If this voltage drop is stable, it may not can affect the signal of microphone.Yet the electric current that this voltage drop can be followed head circuit consumption changes.The electric current of head circuit consumption is not stable, and its change can produce an ac voltage signal (noise) on microphone pin, and this noise can disturb the microphone signal that sends mobile phone from earphone to.If the electric current that head circuit consumes is greater than 0.2 milliampere, will produce another problem: in 2k Ohmic resistance back, the supply voltage that earphone obtains can be very low, is not suitable for driving head circuit.
Therefore, under the dialogue mode, the microphone pin of mobile phone is not suitable for supplying power supply to the ANC earphone, and namely microphone pin can not be used for transmitting microphone signal and power supply simultaneously; In like manner as can be known, under the dialogue mode, the microphone pin of other electronic equipments is not suitable for supplying power supply equally to the ANC earphone.
In view of microphone pin can not be used for transmitting microphone signal and power supply simultaneously, the utility model has also been introduced another kind of electric power-feeding structure under dialogue mode, that is: still adopt the approach that passes through microphone pin power supply under the listen mode, and select L channel or R channel to transmit the hands-free microphone signal, the audio signal that audio-frequency module sends then outputs to the left and right sound channels end of noise canceller circuit by remaining sound channel.Because the power supply approach of listen mode and dialogue mode is identical, when therefore not having the pattern switching, ANC earphone moment does not have the situation of power supply, do not need the electrical power storage module yet, simplified the hardware configuration of ANC earphone, simplified manufacture craft, provided cost savings.
Because the utility model does not change the traditional structure of 4 utmost point earphone sockets and plug, just electronic device circuitry and head circuit are improved, therefore, the utility model has the benefit of following compatibility: 1. when ANC earphone described in the utility model was connected with electronic equipment described in the utility model, the ANC earphone was realized the ANC function; 2. when ANC earphone of the present utility model and ordinary electronic equipment (non-the utility model) when being connected, the ANC earphone can be used as common headphones and uses; 3. when electronic equipment described in the utility model and common headphones (non-the utility model) when being connected, electronic equipment described in the utility model can be used as ordinary electronic equipment and uses.
The utility model is integrated into noise canceller circuit, detection and control module A, switch module A and electrical power storage module on a slice chip by integrated circuit technique, be installed in audio playing unit inside, control unit is inner, perhaps the base of headset plug is inner, has further simplified the structure of ANC earphone.
Description of drawings
Fig. 1 is ANC earphone described in the utility model embodiment 1 and the annexation schematic diagram of electronic equipment under detecting pattern;
Fig. 2 is ANC earphone described in the utility model embodiment 1 and the annexation schematic diagram (omit switch module A, switch module B, control device) of electronic equipment under listen mode;
Fig. 3 is ANC earphone described in the utility model embodiment 1 and the annexation schematic diagram (omit switch module A, switch module B, control device) of electronic equipment under dialogue mode;
Fig. 4 is that electronic equipment described in the utility model embodiment 1 is to the workflow diagram of ANC earphone power supply;
Fig. 5 is ANC earphone described in the utility model embodiment 1 and the annexation schematic diagram (only keep headset plug, earphone socket, audio playing unit, hands-free microphone circuit and audio-frequency module) of electronic equipment under general mode (non-ANC pattern);
Fig. 6 is ANC earphone described in the utility model embodiment 2 and the annexation schematic diagram (omit switch module A, switch module B, control device) of electronic equipment under dialogue mode;
Fig. 7 is that electronic equipment described in the utility model embodiment 2 is to the workflow diagram of ANC earphone power supply;
Fig. 8 is that electronic equipment described in the utility model embodiment 3 is to the workflow diagram of ANC earphone power supply;
Fig. 9 is ANC earphone described in the utility model embodiment 3 and the annexation schematic diagram of electronic equipment under dialogue mode;
Figure 10 is the annexation schematic diagram (only keeping headset plug, earphone socket, audio playing unit, hands-free microphone circuit and audio-frequency module) of ANC earphone described in the utility model and ordinary audio equipment;
Figure 11 is the schematic diagram of ANC earphone;
Figure 12 is the schematic diagram of ANC headset plug;
Figure 13 is that electronic equipment described in the utility model embodiment 9 and 10 is to the workflow diagram of ANC earphone power supply;
Figure 14 is ANC earphone described in the utility model embodiment 9 and the annexation schematic diagram (omit switch module A, switch module B, control device) of electronic equipment under dialogue mode;
Figure 15 is ANC earphone described in the utility model embodiment 10 and the annexation schematic diagram (omit switch module A, switch module B, control device) of electronic equipment under dialogue mode.
Being labeled as in the accompanying drawing: 1-ANC earphone, 2-electronic equipment, 3-headset plug, the 4-audio playing unit, 5-noise canceller circuit, 6-hands-free microphone circuit, 7-grounding pin A, 8-microphone pin A, 9-L channel pin A, 10-R channel pin A, 11-power end, 12-L channel end A, 13-R channel end A, 14-audio-frequency module, 15-power module, the 16-earphone socket, 17-grounding pin B, 18-microphone pin B, 19-L channel pin B, 20-R channel pin B, 21-microphone end, 22-L channel end B, 23-R channel end B, 24-detects and control module A, 25-switch module A, 26-detects and control module B, 27-switch module B, 28-electrical power storage module, the 29-header body, the 30-base, 31-control unit, 32-control device.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Described ANC earphone 1 comprises headset plug 3, audio playing unit 4, noise canceller circuit 5, hands-free microphone circuit 6, detect and control module A24, switch module A25 and electrical power storage module 28, electrical power storage module 28 and power end 11, detect and control module A24 is connected with switch module A25 and is connected, audio playing unit 4 is connected with noise canceller circuit 5, hands-free microphone circuit 6 is connected with switch module A25, described headset plug 3 comprises grounding pin A7, microphone pin A8, L channel pin A9 and R channel pin A10, described noise canceller circuit 5 comprises power end 11, L channel end A12 and R channel end A13, power end 11 links to each other with microphone pin A8 by switch module A25, L channel end A12 links to each other with L channel pin A9 by switch module A25, R channel end A13 is connected with R channel pin A10 by switch module A25, detects and control module A24 and microphone pin A8, L channel pin A9 or R channel pin A10 connect.
Described electronic equipment 2 comprises audio-frequency module 14, power module 15, earphone socket 16, detect and control module B26 and switch module B27, power module 15 is connected with switch module B27, described earphone socket 16 comprises grounding pin B17, microphone pin B18, L channel pin B19 and R channel pin B20, audio-frequency module 14 comprises microphone end 21, L channel end B22 and R channel end B23, microphone pin B18 links to each other with microphone end 21 by switch module B27, L channel pin B19 links to each other with L channel end B22 by switch module B27, R channel pin B20 links to each other with R channel end B23 by switch module B27, detects and control module B26 and microphone pin B18, L channel pin B19 or R channel pin B20 connect.
As shown in figure 11, described ANC earphone 1 also comprises and being connected between described headset plug 3 and the described audio playing unit 4, is used for controlling the control unit 31 of on off state, broadcast volume and the broadcast tonequality of described audio playing unit 4.
Detection and control module B26 and switch module B27 also can be integrated on the same chip, and this chip is installed in the electronic equipment 2.
Described electronic equipment 2 also comprises control device 32, is used for the opening or closing of power module 15, and detects and control module B26, switch module B27 control.Described control device 32 is hardware, software module or firmware, and described control device 32 also is used for arranging and regulating the running parameter of ANC earphone 1.
Operation principle: its total workflow diagram as shown in Figure 4.Insert the earphone socket of electronic equipment when headset plug after, detection and control module B26 detect corresponding microphone pin A8, L channel pin A9 or the electrical characteristic (for example impedance, electric capacity, inductance, signal) of R channel pin A10 by microphone pin B18, L channel pin B19 or R channel pin B20, if detecting data is electrical characteristics of ANC earphone, then this earphone is in the ANC pattern; If detecting data is electrical characteristics of common headphones, then this earphone is in general mode, i.e. non-ANC pattern.
If be operated under the general mode (non-ANC pattern), ANC earphone 1 is connected with electronic equipment 2 as a common headphones and works, and need not electronic equipment 2 and powers to its out-put supply.Its annexation schematic diagram as shown in Figure 5.
If be operated under the ANC pattern, utilize the power supply of electronic equipment 2 to noise canceller circuit 5 power supplies of ANC earphone 1, the originate mode of electronic equipment 2 is defaulted as listen mode, and the annexation schematic diagram of its listen mode is as shown in Figure 2.Detection and control module B26 are to detecting and control module A24 transmission alerting signal, and detection and control module A24 are to detecting and control module B26 inverse signal, and ANC earphone 1 also enters listen mode.Do not mark among the switch module B27(figure) disconnect being connected of microphone end 21 and microphone pin B18, power module 15 is connected to microphone pin B18, so just realized under the listen mode power supply to noise canceller circuit 5, detection and control module A24 and switch module A25, and electrical power storage module 28 real-time store electrical energy.Under this pattern, the hands-free microphone of ANC earphone 1 is not worked, the occupied power supply output channel that is used as electronic equipment 2 of microphone channels.
When electronic equipment 2 received or sends session request, electronic equipment 2 entered dialogue mode, and the annexation schematic diagram of its dialogue mode as shown in Figure 3.Not marking among the switch module B27(figure) deenergization module 15 is connected with microphone pin B18's, the L channel end B22 that disconnects audio-frequency module 14 on the electronic equipment 2 is connected with the L channel pin B19's of earphone socket 16, power module 15 is connected to L channel pin B19, the R channel end B23 of audio-frequency module 14 is connected to the R channel pin B20 of earphone socket 16, and the microphone end 21 of audio-frequency module 14 is connected to the microphone pin B18 of earphone socket 16.Detection and control module B26 are to detecting and control module A24 transmission alerting signal, and detection and control module A24 are to detecting and control module B26 inverse signal, and ANC earphone 1 also enters dialogue mode.Do not mark among the switch module A25(figure) the L channel pin A9 of headset plug 3 is connected to the power end 11 of noise canceller circuit 5, the R channel pin A10 of headset plug 3 is connected to L channel end A12 and the R channel end A13 of noise canceller circuit 5, and the microphone pin A8 of headset plug 3 is connected to hands-free microphone circuit 6.So just realized under the dialogue mode power supply to noise canceller circuit 5, detection and control module A24 and switch module A25, and electrical power storage module 28 real-time store electrical energy.Under this pattern, 6 normal connections and work of hands-free microphone circuit, and need take the power supply output channel that L channel is used as electronic equipment 2, the audio signal of electronic equipment 2 L channels can not be sent to earphone, and the audio signal of R channel can be sent to from R channel L channel end A12 and the R channel end A13 of the noise canceller circuit 5 of earphone, the user from about what hear two loud speakers all is the signal of R channel.
When the listen mode of ANC earphone 1 and dialogue mode switched mutually, namely the power end 11 of noise canceller circuit 5 was when conversion is connected between the microphone pin A8 of headset plug 3 and L channel pin A9, and ANC earphone 1 does not have exterior power supply in a flash.The electrical power storage module 28 of ANC earphone 1, (being in listen mode and the dialogue mode) obtains power source charges from electronic equipment 2 at ordinary times, and do not having exterior power supply in a flash, can continue to provide power supply to noise canceller circuit 5, detection and control module A24 and switch module A25.
When end-of-dialogue, electronic equipment 2 enters listen mode, and sends alerting signal to ANC earphone 1, and ANC earphone 1 is to electronic equipment 2 inverse signals, and switches to listen mode.
Embodiment 2 of the present utility model: the present embodiment is compared with embodiment 1, and difference only is: under the dialogue mode, utilize the R channel pin B20 of earphone socket 16 on the electronic equipment 2 to ANC earphone 1 supply power supply.Such as Fig. 6, shown in Figure 7, when electronic equipment 2 receives or sends session request, electronic equipment 2 enters dialogue mode, not marking among the switch module B27(figure) deenergization module 15 is connected with microphone pin B18's, the R channel end B23 of disconnection audio-frequency module 14 is connected with the R channel pin B20's of earphone socket 16, power module 15 is connected to R channel pin B20, the L channel end B22 of audio-frequency module 14 is connected to the L channel pin B19 of earphone socket 16, and the microphone end 21 of audio-frequency module 14 is connected to the microphone pin B18 of earphone socket 16.Detection and control module B26 are to detecting and control module A24 transmission alerting signal, and detection and control module A24 are to detecting and control module B26 inverse signal, and ANC earphone 1 also enters dialogue mode.Do not mark among the switch module A25(figure) the R channel pin A10 of headset plug 3 is connected to the power end 11 of noise canceller circuit 5, the L channel pin A9 of headset plug 3 is connected to L channel end A12 and the R channel end A13 of noise canceller circuit 5, and the microphone pin A8 of headset plug 3 is connected to hands-free microphone circuit 6.
When electronic equipment 2 received or sends session request, electronic equipment 2 entered dialogue mode, and sent alerting signal to ANC earphone 1, and ANC earphone 1 is to electronic equipment 2 inverse signals, and switched under the dialogue mode.
As shown in Figure 9, under the dialogue mode, the power module 15 of the switch module B27 disconnection electronic equipment 2 on the electronic equipment 2 is connected with the microphone pin B18's of earphone socket 16, the microphone end 21 of audio-frequency module 14 on the electronic equipment 2 is connected to the microphone pin B18 of earphone socket 16, L channel end B22 is linked to L channel pin B19, and R channel end B23 is connected to R channel pin B20; The power end 11 of the switch module A25 disconnection noise canceller circuit 5 on the ANC earphone 1 is connected with the microphone pin A8's of headset plug 3, the L channel pin A9 of headset plug 3 is connected to the L channel end of audio playing unit 4, R channel pin A10 is connected to the R channel end of audio playing unit 4, and the microphone pin A8 of headset plug 3 is connected to hands-free microphone circuit 6.
When ANC earphone 1 under dialogue mode, to ANC earphone power supply, ANC earphone 1 does not have exterior power supply to electronic equipment 2, relies on electrical power storage module 28 to continue to provide power supply to detecting and control module A24 and switch module A25.The electrical power storage module 28 of ANC earphone 1 at ordinary times (being listen mode) obtain power source charges from electronic equipment.
When end-of-dialogue, electronic equipment 2 enters listen mode, and sends alerting signal to ANC earphone 1, and ANC earphone 1 is to electronic equipment 2 inverse signals, and switches to listen mode.
Among the above embodiment 1-7, described ANC earphone 1 also comprises hand switch or motor switch, is used to open or close the ANC pattern of ANC earphone 1, and described hand switch or motor switch are arranged on the described control unit 31; Detection in described electronic equipment 2, the ANC earphone 1 and control module and switch module can be realized by electronic circuit technology.
Such as Figure 13, shown in Figure 14, when electronic equipment 2 receives or sends session request, electronic equipment 2 enters dialogue mode, power module 15 is connected with microphone pin B18 by switch module B27, microphone end 21 is not by marking among the switch module B27(figure) be connected with L channel pin B19, R channel end B23 is connected (also L channel end B22 can be connected to R channel pin B20) by switch module B27 with R channel pin B20; Detection and control module B26 are to detecting and control module A24 transmission alerting signal, and detection and control module A24 are to detecting and control module B26 inverse signal, and ANC earphone 1 also enters dialogue mode.Microphone pin A8 is not by marking among the switch module A25(figure) be connected with power end 11, L channel pin A9 is connected with hands-free microphone circuit 6 by switch module A25, and R channel pin A10 is connected with R channel end A13 with L channel end A12 respectively by switch module A25.
Under the dialogue mode, still adopt the approach that passes through the microphone pin power supply under the listen mode, namely hold over the power supply output channel that microphone channels is used as electronic equipment, and select L channel to transmit the hands-free microphone signal, make the normal connection of hands-free microphone circuit and work.If the L channel end B22 of audio-frequency module 14 is connected to the R channel pin B20 of earphone socket 16, then the audio signal of L channel can be sent to from R channel L channel end A12 and the R channel end A13 of noise canceller circuit 5, so the user hears from left and right two loud speakers of audio playing unit 4 all is the signal of L channel; If the R channel end B23 of audio-frequency module 14 is connected to the R channel pin B20 of earphone socket 16, then the audio signal of R channel can be sent to from R channel L channel end A12 and the R channel end A13 of noise canceller circuit 5, so the user hears from left and right two loud speakers of audio playing unit 4 all is the signal of R channel.
When end-of-dialogue, electronic equipment 2 enters listen mode, and sends alerting signal to ANC earphone 1, and ANC earphone 1 is to the electronic equipment inverse signal, and switches to listen mode.
Because the power supply approach of listen mode and dialogue mode is identical, when therefore not having the pattern switching, ANC earphone moment does not have the situation of power supply, does not need the real-time store electrical energy of ANC earphone yet.
The installation position of noise canceller circuit 5, detection and control module A24 and switch module A25 can adopt any one among the embodiment 4-7.
Among the above embodiment 1-10, described ANC earphone 1 also comprises hand switch or motor switch, is used to open or close the ANC pattern of ANC earphone 1, and described hand switch or motor switch are arranged on the described control unit 31; Detection in described electronic equipment 2, the ANC earphone 1 and control module and switch module can be realized by electronic circuit technology.
Among the above embodiment 1-10, electronic equipment 2 detect ANC earphones 1 whether be in the ANC pattern can also be in the following ways: detect and control module B26 to detecting and control module A 24 sends request signals, detect and control module A24 turns back to ANC earphone 1 pattern of living in (ANC pattern or non-ANC pattern) and detects and control module B26 with signal form, finish detection to this earphone by handshaking.Under detecting pattern, because the bias voltage that the microphone end 21 of audio-frequency module 14 provides is sent to the microphone pin A8 of headset plug 3 by the microphone pin B18 of earphone socket 16, the detection and the control module A24 that are connected with microphone pin A8 also can obtain power supply, finish the handshaking with detection and control module B26.
In addition, when electronic equipment 2 is ordinary audio equipment, such as music player, video player, multimedia player, portable game machine etc., its earphone socket does not have microphone pin, can not be to 1 power supply of ANC earphone, the annexation between described ANC earphone 1 and the electronic equipment 2 is as shown in figure 10.But 4 utmost point headset plugs of ANC earphone 1 described in the utility model and 3 utmost point earphone sockets of ordinary audio equipment can mate use, finish the listening function of common headphones.
Claims (18)
1. one kind is utilized the power supply of electronic equipment to the equipment of ANC earphone power supply, comprises ANC earphone (1) and electronic equipment (2); Described ANC earphone (1) comprises headset plug (3), audio playing unit (4), noise canceller circuit (5) and hands-free microphone circuit (6), described headset plug (3) comprises grounding pin A(7), microphone pin A(8), L channel pin A(9) and R channel pin A(10), described noise canceller circuit (5) comprises power end (11), L channel end A(12) and R channel end A(13), audio playing unit (4) is connected with noise canceller circuit (5); Described electronic equipment (2) comprises audio-frequency module (14), power module (15) and earphone socket (16), described earphone socket (16) comprises grounding pin B(17), microphone pin B(18), L channel pin B(19) and R channel pin B(20), audio-frequency module (14) comprises microphone end (21), L channel end B(22) and R channel end B(23), it is characterized in that: ANC earphone (1) also comprises detection and control module A(24) and switch module A(25), detect and control module A(24) be connected noise canceller circuit (5) with headset plug (3), hands-free microphone circuit (6) is all by switch module A(25) be connected with headset plug (3); Electronic equipment (2) also comprises detection and control module B(26) and switch module B(27), detect and control module B(26) be connected with earphone socket (16), audio-frequency module (14), power module (15) are all by switch module B(27) be connected with earphone socket (16).
2. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: power module (15) is by switch module B(27) with microphone pin B(18) be connected, L channel end B(22) by switch module B(27) with L channel pin B(19) be connected, R channel end B(23) by switch module B(27) with R channel pin B(20) be connected, microphone pin A(8) by switch module A(25) be connected with power end (11), L channel pin A(9) by switch module A(25) with L channel end A(12) be connected R channel pin A(10) pass through switch module A(25) with R channel end A(13) be connected.
3. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: power module (15) is by switch module B(27) with L channel pin B(19) be connected, microphone end (21) is by switch module B(27) with microphone pin B(18) be connected, R channel end B(23) by switch module B(27) with R channel pin B(20) be connected, microphone pin A(8) by switch module A(25) be connected with hands-free microphone circuit (6), L channel pin A(9) by switch module A(25) be connected R channel pin A(10 with power end (11)) pass through switch module A(25) and respectively with L channel end A(12), R channel end A(13) connects.
4. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: power module (15) is by switch module B(27) with R channel pin B(20) be connected, microphone end (21) is by switch module B(27) with microphone pin B(18) be connected, L channel end B(22) by switch module B(27) with L channel pin B(19) be connected, microphone pin A(8) by switch module A(25) be connected with hands-free microphone circuit (6), L channel pin A(9) by switch module A(25) respectively with L channel end A(12), R channel end A(13) connect R channel pin A(10) by switch module A(25) be connected with power end (11).
5. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: power module (15) is by switch module B(27) with microphone pin B(18) be connected, microphone end (21) is by switch module B(27) with L channel pin B(19) be connected, microphone pin A(8) by switch module A(25) be connected with power end (11), L channel pin A(9) by switch module A(25) be connected R channel pin A(10 with hands-free microphone circuit (6)) pass through switch module A(25) and respectively with L channel end A(12) be connected with R channel end A(13 and be connected.
6. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: power module (15) is by switch module B(27) with microphone pin B(18) be connected, microphone end (21) is by switch module B(27) with R channel pin B(20) be connected, microphone pin A(8) by switch module A(25) be connected with power end (11), R channel pin A(10) by switch module A(25) be connected L channel pin A(9 with hands-free microphone circuit (6)) pass through switch module A(25) and respectively with L channel end A(12) be connected with R channel end A(13 and be connected.
7. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: microphone end (21) is by switch module B(27) with microphone pin B(18) be connected, L channel end B(22) by switch module B(27) with L channel pin B(19) be connected, R channel end B(23) by switch module B(27) with R channel pin B(20) be connected, microphone pin A(8) by switch module A(25) be connected L channel pin A(9 with hands-free microphone circuit (6)), R channel pin A(10) all by switch module A(25) be connected with audio playing unit (4).
According to claim 2 or 3 or 4 or 5 or the 6 or 7 described power supplys that utilize electronic equipment to the equipment of ANC earphone power supply, it is characterized in that: detect and control module A(24) with the microphone pin A(8 of headset plug (3)), L channel pin A(9) or R channel pin A(10) be connected.
According to claim 2 or 3 or 4 or 5 or the 6 or 7 described power supplys that utilize electronic equipment to the equipment of ANC earphone power supply, it is characterized in that: detect and control module B(26) with the microphone pin B(18 of earphone socket (16)), L channel pin B(19) or R channel pin B(20) be connected.
According to claim 2 or 3 or the 4 or 7 described power supplys that utilize electronic equipment to the equipment of ANC earphone power supply, it is characterized in that: described ANC earphone (1) comprises electrical power storage module (28), electrical power storage module (28) respectively with power end (11), detection and control module A(24) be connected with switch module A(25 and be connected.
11. the power supply of electronic equipment that utilizes according to claim 8 is characterized in that: noise canceller circuit (5), detection and control module A(24 to the equipment of ANC earphone power supply) and switch module A(25) be integrated on the same chip.
12. the power supply that utilizes electronic equipment according to claim 10 is characterized in that: noise canceller circuit (5), detection and control module A(24 to the equipment of ANC earphone power supply), switch module A(25) and electrical power storage module (28) be integrated on the same chip.
13. the power supply of electronic equipment that utilizes according to claim 9 is characterized in that: detect and control module B(26 to the equipment of ANC earphone power supply) and switch module B(27) be integrated on the same chip.
14. according to claim 2 or 3 or 4 or 5 or 6 or 7 described equipment, it is characterized in that: described ANC earphone (1) also comprises hand switch or motor switch, is used to open or close the ANC pattern of ANC earphone (1).
15. the power supply of electronic equipment that utilizes according to claim 14 is to the equipment of ANC earphone power supply, it is characterized in that: detect and control module A(24) and switch module A(25) adopt manual hardware switch, be used for listen mode, the dialogue mode of opening or closing ANC earphone (1); Detect and control module B(26) and switch module B(27) adopt manual hardware switch or man-machine interface switch, be used for listen mode, dialogue mode and the ANC pattern of opening or closing electronic equipment (2).
16. according to claim 2 or 3 or 4 or 5 or the 6 or 7 described power supplys that utilize electronic equipment to the equipment of ANC earphone power supply, it is characterized in that: described electronic equipment (2) also comprises control device (32), be used for the opening or closing of power module (15), and to detecting and control module B(26), switch module B(27) control.
17. the power supply of electronic equipment that utilizes according to claim 16 is to the equipment of ANC earphone power supply, it is characterized in that: described control device (32) is hardware, software module or firmware, and described control device (32) also is used for arranging and regulating the running parameter of ANC earphone (1).
18. the power supply of electronic equipment that utilizes according to claim 1 is to the equipment of ANC earphone power supply, it is characterized in that: described electronic equipment (2) has dialogue function, and described electronic equipment (2) is any one in mobile phone, PC, notebook computer, the panel computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320268313 CN203251412U (en) | 2013-05-08 | 2013-05-16 | Device capable of using power source of electronic equipment to supply power to automatic noise cancellation (ANC) earphone |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320245973 | 2013-05-08 | ||
| CN201320245973.2 | 2013-05-08 | ||
| CN 201320268313 CN203251412U (en) | 2013-05-08 | 2013-05-16 | Device capable of using power source of electronic equipment to supply power to automatic noise cancellation (ANC) earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203251412U true CN203251412U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320268313 Expired - Fee Related CN203251412U (en) | 2013-05-08 | 2013-05-16 | Device capable of using power source of electronic equipment to supply power to automatic noise cancellation (ANC) earphone |
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| Country | Link |
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| CN (1) | CN203251412U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581474A (en) * | 2013-10-28 | 2015-04-29 | 美律电子(深圳)有限公司 | Handheld electronic device and corresponding ant-noise earphone |
| CN105208188A (en) * | 2014-06-26 | 2015-12-30 | 帝奥微电子有限公司 | Signal processing system |
| CN105451126A (en) * | 2014-07-21 | 2016-03-30 | 美律电子（惠州）有限公司 | Mobile device and corresponding anti-noise earphone |
| CN108063992A (en) * | 2017-12-12 | 2018-05-22 | 广东小天才科技有限公司 | Bluetooth earphone, earphone switching socket and method for switching between Bluetooth and wired earphone |
| CN108924688A (en) * | 2018-07-10 | 2018-11-30 | 歌尔股份有限公司 | A kind of earphone |
-
2013
- 2013-05-16 CN CN 201320268313 patent/CN203251412U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581474A (en) * | 2013-10-28 | 2015-04-29 | 美律电子(深圳)有限公司 | Handheld electronic device and corresponding ant-noise earphone |
| CN105208188A (en) * | 2014-06-26 | 2015-12-30 | 帝奥微电子有限公司 | Signal processing system |
| CN105451126A (en) * | 2014-07-21 | 2016-03-30 | 美律电子（惠州）有限公司 | Mobile device and corresponding anti-noise earphone |
| CN108063992A (en) * | 2017-12-12 | 2018-05-22 | 广东小天才科技有限公司 | Bluetooth earphone, earphone switching socket and method for switching between Bluetooth and wired earphone |
| CN108924688A (en) * | 2018-07-10 | 2018-11-30 | 歌尔股份有限公司 | A kind of earphone |
| CN108924688B (en) * | 2018-07-10 | 2020-02-21 | 歌尔股份有限公司 | Earphone set |
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