CN102291643A - Noise reduction earphone interface structure - Google Patents
Noise reduction earphone interface structure Download PDFInfo
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- CN102291643A CN102291643A CN2011102213795A CN201110221379A CN102291643A CN 102291643 A CN102291643 A CN 102291643A CN 2011102213795 A CN2011102213795 A CN 2011102213795A CN 201110221379 A CN201110221379 A CN 201110221379A CN 102291643 A CN102291643 A CN 102291643A
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Abstract
The invention relates to a noise reduction earphone interface structure in the technical field of equipment noise reduction. The noise reduction earphone interface structure comprises a noise reduction chip, a loudspeaker, an earphone-side microphone, a device-side control switch, a device-side audio interface and an earphone-side audio interface. The noise reduction earphone interface structure solves the problems of large earphone volume, heavy weight and limited endurance caused by an external power supply of a noise reduction earphone.
Description
Technical field
What the present invention relates to is the structure in a kind of equipment noise reduction technology field, specifically is a kind of noise cancelling headphone interface architecture.
Background technology
The existing earphone interface framework that is used for the mobile phone noise reduction is gathered ambient noise by the ambient noise receiver 1 that places the earphone end, by noise reduction chip 3, ambient noise is done analyzing and processing, and noise and the audio signal stack of handling outputed to loudspeaker 2 together.Noise and three kinds of signals of ambient noise that the sound that people's ear is heard is audio signal, handled.Because the noise of handling is the reverse signal of ambient noise, therefore two kinds of noises are cancelled each other, and what people's ear was heard will mainly be audio signal, and noise is suppressed to a great extent.
In the existing structure with decrease of noise functions be provided with ambient noise receiver 1, loudspeaker 2, earphone end audio interface 8, power supply 12 and noise reduction chip 3 in the earphone that uses 9, be provided with equipment end audio interface 7 and equipment output audio signal module 11 in institute's use equipment 10, noise reduction chip 3 is electrically connected with ambient noise receiver 1, loudspeaker 2, earphone end audio interface 8 and power supply 12 respectively, and equipment end audio interface 7 is electrically connected with equipment output audio signal module 11; Described earphone end audio interface 8 is provided with earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84; Described equipment end audio interface 7 is provided with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74; Described earphone end audio interface 8 is suitable with equipment end audio interface 7.
Described noise reduction chip 3 needs power supply, power supply 12 be loaded in usually in the earphone that uses 9, such framework can increase the weight of earphone, brings discomfort to the wearer.
The product that has can be made in power supply 12 on the controller of earphone cord of the earphone that uses 9, and the weight of the earphone that uses 9 can not increase, but inconveniences such as external power supply 12 flying powers and weight still exist.
Summary of the invention
Purpose of the present invention just is to overcome the defective of above-mentioned noise cancelling headphone, thereby a kind of noise cancelling headphone interface architecture is provided.
For achieving the above object, the noise cancelling headphone interface architecture of this invention comprises: noise reduction control module and equipment end control switch, wherein: the noise reduction control module is electrically connected with ambient noise receiver, loudspeaker, earphone end audio interface and earphone end microphone respectively, and the equipment end control switch is electrically connected with power supply, earphone Mike output interface and equipment end audio interface respectively.
The ambient noise receiving terminal of described noise reduction control module, output and earphone Mike input are electrically connected with ambient noise receiver, loudspeaker and earphone end microphone respectively, and the audio input end of the control end of noise reduction control module and noise reduction control module all is electrically connected with earphone end audio interface.
The control end of described equipment end control switch is electrically connected with the equipment end audio interface.
Described noise reduction control module, ambient noise receiver, earphone end microphone, loudspeaker and earphone end audio interface all be arranged at use in the earphone.
Described equipment end control switch, equipment end audio interface, equipment output audio signal module, power supply and earphone Mike output interface all are arranged in institute's use equipment.
Described noise reduction control module comprises: noise reduction chip and earphone end control switch, wherein: earphone end control switch is electrically connected with the power input of earphone end audio interface, earphone end microphone and noise reduction chip respectively, and ambient noise receiving terminal, output and the audio input end of noise reduction chip is electrically connected with ambient noise receiver, loudspeaker and earphone end audio interface respectively.
Described noise reduction control module and equipment end control switch interlock control noise reduction chip operation or the work of earphone end microphone, this noise reduction chip is the signal of ambient noise analyzing and processing for offseting with former ambient noise of input, and making the noise reduction chip is audio signal from the audio input end input of noise reduction chip to loudspeaker output.
Described earphone end audio interface is provided with earphone Mike port, earphone ground port, earphone L channel port and earphone R channel port, wherein: earphone Mike port is electrically connected with the control end of earphone end control switch, and earphone ground port, earphone L channel port and earphone R channel port all are electrically connected with the audio input end of noise reduction chip.
Described equipment end audio interface is provided with equipment Mike port, equipment ground port, equipment L channel port and equipment R channel port, wherein: equipment ground port, equipment L channel port and equipment R channel port all are electrically connected with equipment output audio signal module, and equipment Mike port is electrically connected with the control end of equipment end control switch.
It is that corresponding port is complementary that described earphone end audio interface is complementary with the equipment end audio interface.
Described earphone end control switch is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, the one switch contact is electrically connected the earphone end microphone work of promptly controlling with earphone end microphone, its another switch contact is electrically connected with the power input of noise reduction chip and promptly controls the noise reduction chip operation.
Described equipment end control switch is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, the one switch contact is electrically connected the earphone end microphone work of promptly controlling with earphone Mike output interface, its another switch contact is electrically connected with power supply promptly controls the noise reduction chip operation.
During this invention work, the equipment end audio interface is connected with earphone end audio interface, control earphone end control switch and equipment end control switch, can realize two kinds of patterns: common headset pattern and noise reduction chip operation pattern, when earphone end control switch and equipment end control switch all switch to the contact that is connected the work of control earphone end microphone, form common headset pattern, when earphone end control switch and equipment end control switch all switch to the contact that is connected control noise reduction chip operation, form noise reduction chip operation pattern.
This invention solved because of external power supply cause big, Heavy Weight of the earphone volume that uses and the limited problem of flying power.
According to the invention of this part on the other hand, also provide a kind of noise cancelling headphone interface architecture to comprise: noise reduction control module and earphone end ring border sound receiver module, wherein: earphone end ring border sound receiver module is electrically connected with earphone end audio interface, earphone end audio interface is electrically connected with loudspeaker, and the noise reduction control module is electrically connected with equipment output audio signal module, earphone Mike output interface and equipment end audio interface respectively.
The audio input end of described noise reduction control module, earphone Mike working end and power input are electrically connected with equipment output audio signal module, earphone Mike output interface and power supply respectively, the output of noise reduction control module and control end all are electrically connected with the equipment end audio interface
Described earphone end ring border sound receiver module, loudspeaker and earphone end audio interface all be arranged at use in the earphone.
Described noise reduction control module, equipment end audio interface, earphone Mike output interface, equipment output audio signal module and power supply all are arranged in institute's use equipment.
Described earphone end audio interface is provided with earphone Mike port, earphone ground port, earphone L channel port and earphone R channel port, wherein: earphone Mike port is electrically connected with earphone end ring border sound receiver module, and earphone ground port, earphone L channel port and earphone R channel port all are electrically connected with loudspeaker.
Described equipment end audio interface is provided with equipment Mike port, equipment ground port, equipment L channel port and equipment R channel port, wherein: equipment ground port, equipment L channel port and equipment R channel port all are electrically connected with the output of noise reduction control module, and equipment Mike port is electrically connected with the control end of equipment end control switch.
It is that corresponding port is complementary that described earphone end audio interface is complementary with the equipment end audio interface.
Described noise reduction control module comprises: noise reduction chip and equipment end control switch, wherein: the audio input end of noise reduction chip, output, ambient noise receiving terminal and power input are electrically connected with equipment output audio signal module, equipment end audio interface, equipment end control switch and power supply respectively, and the equipment end control switch is electrically connected with equipment end audio interface and earphone Mike output interface respectively.
Described noise reduction chip is with the signal of ambient noise analyzing and processing for offseting with former ambient noise of input, and what make the output of noise reduction chip is the audio signal of slave unit output audio signal module input.
Described equipment end control switch is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, the one switch contact is electrically connected the earphone end microphone work of promptly controlling with earphone Mike output interface, its another switch contact is electrically connected with the ambient noise receiving terminal of noise reduction chip and promptly controls the noise reduction chip operation.
Described earphone end ring border sound receiver module is controlling receiver module or single microphone receiver module.
When earphone end ring border sound receiver module is the controlling receiver module, this controlling receiver module comprises: earphone end microphone, ambient noise receiver and earphone end control switch, wherein: earphone end control switch is electrically connected with earphone end microphone, ambient noise receiver and earphone end audio interface respectively.
When earphone end ring border sound receiver module is the controlling receiver module, described earphone end control switch is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, the one switch contact is electrically connected the earphone end microphone work of promptly controlling with earphone end microphone, its another switch contact is electrically connected with the ambient noise receiver and promptly controls the noise reduction chip operation.
When earphone end ring border sound receiver module is the controlling receiver module, described earphone end control switch and equipment end control switch interlock control noise reduction chip operation or the work of earphone end microphone.
When earphone end ring border sound receiver module is the controlling receiver module, when the present invention works, described equipment end audio interface is connected with earphone end audio interface, control earphone end control switch and equipment end control switch, can realize two kinds of patterns: common headset pattern and noise reduction chip operation pattern, when earphone end control switch and equipment end control switch all switch to the contact that is connected the work of control earphone end microphone, form common headset pattern, when earphone end control switch and equipment end control switch all switch to the contact that is connected control noise reduction chip operation, form noise reduction chip operation pattern.
When earphone end ring border sound receiver module is the controlling receiver module, the earphone end of this invention not only need not to control power-supply system, it is also external to fall the control module of making an uproar, and has only Duoed the ambient noise receiver than common headphones, has realized the lightweight of device to greatest extent.
When earphone end ring border sound receiver module was the single microphone receiver module, described single microphone receiver module adopted earphone end microphone, and this earphone end microphone is electrically connected with earphone end audio interface, is used for reception environment sound.
When earphone end ring border sound receiver module is the single microphone receiver module, described equipment end control switch control noise reduction chip operation.
When earphone end ring border sound receiver module is the single microphone receiver module, when the present invention works, described equipment end audio interface is connected with earphone end audio interface, control appliance end control switch, can realize two kinds of patterns: common headset pattern and noise reduction chip operation pattern, when the equipment end control switch switches to the contact that connects the work of control earphone end microphone, form common headset pattern, when the equipment end control switch switches to the contact that connects control noise reduction chip operation, form noise reduction chip operation pattern.
When earphone end ring border sound receiver module was the single microphone receiver module, this device used earphone end microphone also can realize decrease of noise functions.
Description of drawings
Fig. 1 is existing circuit diagram with structure of decrease of noise functions, and wherein: figure (a) is the interior circuit diagram of institute's uses earphone, and scheming (b) is the interior circuit diagram of institute's use equipment.
Fig. 2 is the circuit diagram of embodiment 1, and wherein: figure (a) is the interior circuit diagram of institute's uses earphone, and scheming (b) is the interior circuit diagram of institute's use equipment.
Fig. 3 is the circuit diagram of embodiment 2, and wherein: figure (a) is the interior circuit diagram of institute's uses earphone, and scheming (b) is the interior circuit diagram of institute's use equipment.
Fig. 4 is the circuit diagram of embodiment 3, and wherein: figure (a) is the interior circuit diagram of institute's uses earphone, and scheming (b) is the interior circuit diagram of institute's use equipment.
Embodiment
Technical characterictic of the present invention is described further with specific embodiment below in conjunction with accompanying drawing.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.
As shown in Figure 1, the noise cancelling headphone interface architecture of this invention comprises: ambient noise receiver 1, loudspeaker 2, noise reduction chip 3, earphone end microphone 4, earphone end control switch 5, equipment end control switch 6, equipment end audio interface 7, earphone end audio interface 8, equipment output audio signal module 11, power supply 12 and earphone Mike output interface 13, wherein: the power input of noise reduction chip 3, the ambient noise receiving terminal, output and audio input end respectively with earphone end control switch 5, ambient noise receiver 1, loudspeaker 2 and earphone end audio interface 8 are electrically connected, the control end of earphone end control switch 5 and earphone Mike input are electrically connected with earphone end audio interface 8 and earphone end microphone 4 respectively, equipment end audio interface 7 is electrically connected with the control end and the equipment output audio signal module 11 of equipment end control switch 6 respectively, equipment end control switch 6 is electrically connected with power supply 12 and earphone Mike output interface 13 respectively, when the present invention worked, equipment end audio interface 7 was connected with earphone end audio interface 8.
Described noise reduction chip 3, ambient noise receiver 1, earphone end microphone 4, loudspeaker 2 and earphone end control switch 5 and earphone end audio interface 8 all be arranged in the earphone that uses 9.
Described equipment end control switch 6, equipment end audio interface 7, power supply 12, equipment output audio signal module 11 and earphone Mike output interface 13 all are arranged in institute's use equipment 10.
Described earphone end control switch 5 and 6 chip 3 work of interlock control noise reduction or 4 work of earphone end microphone of equipment end control switch, this noise reduction chip 3 is the signal of ambient noise analyzing and processing for offseting with former ambient noise of input, and making noise reduction chip 3 is audio signals from the audio input end input of noise reduction chip 3 to loudspeaker 2 outputs.
Described earphone end audio interface 8 is provided with earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84, wherein: earphone Mike port 81 is electrically connected with the control end of earphone end control switch 5, and earphone ground port 82, earphone L channel port 83 and earphone R channel port 84 all are electrically connected with the audio input end of noise reduction chip 3.
Described equipment end audio interface 7 is provided with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74, wherein: equipment ground port 72, equipment L channel port 73 and equipment R channel port 74 all are electrically connected with equipment output audio signal module 11, and equipment Mike port 71 is electrically connected with the control end of equipment end control switch 6.
It is that corresponding port is complementary that described earphone end audio interface 8 is complementary with equipment end audio interface 7.
Described earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84 are corresponding one by one with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74 respectively, are corresponding port.
Described earphone end control switch 5 is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, one switch contact A is electrically connected with earphone end microphone 4 and promptly controls 4 work of earphone end microphone, and its another switch contact B is electrically connected with the power input of noise reduction chip 3 and promptly controls 3 work of noise reduction chip.
Described equipment end control switch 6 is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, one switch contact D is electrically connected with earphone Mike output interface 13 and promptly controls 4 work of earphone end microphone, and its another switch contact C is electrically connected with power supply 12 and promptly controls 3 work of noise reduction chip.
Described ambient noise receiver 1 is the microphone that is used for the reception environment noise and the ambient noise that is received is passed to noise reduction chip 3.
During the work of this device, control earphone end control switch 5 and equipment end control switch 6, can realize two kinds of patterns: common headset pattern and noise reduction chip operation pattern, when earphone end control switch 5 and equipment end control switch 6 all switch to the contact that is connected 4 work of control earphone end microphone, form common headset pattern, when earphone end control switch 5 and equipment end control switch 6 all switch to the contact that is connected 3 work of control noise reduction chip, form noise reduction chip operation pattern.
The switching of control earphone end control switch 5 and equipment end control switch 6 realizes that two kinds of patterns have three kinds of modes:
1, two groups of switch manual switching modes;
2, earphone end control switch 5 manual switching modes: testing circuit is in equipment end, and after the earphone end-grain cutting was changed, because impedance variation, equipment end was also done handover operation.
3, equipment end control switch 6 manual switching modes: testing circuit is at the earphone end, and after equipment end was switched, the earphone end detected the level variation and switches.
This device solves noise cancelling headphone because of external power supply causes that the earphone volume is big, Heavy Weight and the limited problem of flying power.
The noise cancelling headphone interface architecture of this invention comprises: ambient noise receiver 1, loudspeaker 2, noise reduction chip 3, earphone end microphone 4, earphone end control switch 5, equipment end control switch 6, equipment output audio signal module 11, earphone Mike output interface 13, equipment end audio interface 7, earphone end audio interface 8 and power supply 12, wherein: earphone end control switch 5 respectively with ambient noise receiver 1, earphone end microphone 4 and earphone end audio interface 8 are electrically connected, earphone end audio interface 8 is electrically connected with the audio input end of loudspeaker 2, the audio input end of noise reduction chip 3, the ambient noise receiving terminal, output and power input respectively with equipment output audio signal module 11, equipment end control switch 6, equipment end audio interface 7 and power supply 12 are electrically connected, equipment end control switch 6 is electrically connected with equipment end audio interface 7 and earphone Mike output interface 13 respectively, when the present invention worked, equipment end audio interface 7 was connected with earphone end audio interface 8.
Described ambient noise receiver 1, earphone end microphone 4, loudspeaker 2, earphone end control switch 5 and earphone end audio interface 8 all be arranged in the earphone that uses 9.
Described noise reduction chip 3, equipment end control switch 6, equipment end audio interface 7, equipment output audio signal module 11, power supply 12 and earphone Mike output interface 13 all are arranged in institute's use equipment 10.
Described earphone end audio interface 8 is provided with earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84, wherein: earphone Mike port 81 is electrically connected with earphone end control switch 5, and earphone ground port 82, earphone L channel port 83 and earphone R channel port 84 all are electrically connected with loudspeaker 2.
Described equipment end audio interface 7 is provided with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74, wherein: equipment ground port 72, equipment L channel port 73 and equipment R channel port 74 all are electrically connected with the output of noise reduction chip 3, and equipment Mike port 71 is electrically connected with the control end of equipment end control switch 6.
It is that corresponding port is complementary that described earphone end audio interface 8 is complementary with equipment end audio interface 7.
Described earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84 are corresponding one by one with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74 respectively, are corresponding port.
Described earphone end control switch 5 is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, one switch contact A is electrically connected with earphone end microphone 4 and promptly controls 4 work of earphone end microphone, and its another switch contact B is electrically connected with ambient noise receipts device 1 and promptly controls 3 work of noise reduction chip.
Described equipment end control switch 6 is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, one switch contact D is electrically connected with earphone Mike output interface 13 and promptly controls 4 work of earphone end microphone, and its another switch contact C is electrically connected with noise reduction chip 3 and promptly controls 3 work of noise reduction chip.
Described earphone end control switch 5 and 6 chip 3 work of interlock control noise reduction or 4 work of earphone end microphone of equipment end control switch, this noise reduction chip 3 is with the signal of ambient noise analyzing and processing for offseting with former ambient noise of input, and what make 3 outputs of noise reduction chip is the audio signal of slave unit output audio signal module 11 inputs.
Described ambient noise receiver 1 is the microphone that is used for the reception environment noise and the ambient noise that is received is passed to noise reduction chip 3.
When this device is used, control earphone end control switch 5 and equipment end control switch 6, can realize two kinds of patterns: common headset pattern and noise reduction chip operation pattern, when earphone end control switch 5 and equipment end control switch 6 all switch to the contact that is connected 4 work of control earphone end microphone, form common headset pattern, when earphone end control switch 5 and equipment end control switch 6 all switch to the contact that is connected 3 work of control noise reduction chip, form noise reduction chip operation pattern.
The switching of control earphone end control switch 5 and equipment end control switch 6 realizes that two kinds of patterns have three kinds of modes:
1, two groups of switch manual switching modes;
2, earphone end control switch 5 manual switching modes, equipment end control switch 6 switches by impedance variation.
3, equipment end control switch 6 manual switching modes, the earphone end switches by impedance variation.
The earphone end of this device not only need not to control power-supply system, and it is also external to fall the chip 3 of making an uproar, and this device only Duo ambient noise receiver 1 than common headphones, has realized the lightweight of installing to greatest extent.
Noise cancelling headphone interface architecture of the present invention comprises: noise reduction chip 3, loudspeaker 2, earphone end microphone 4, equipment end control switch 6, equipment end audio interface 7, earphone end audio interface 8, equipment output audio signal module 11, power supply 12 and earphone Mike output interface 13, wherein: earphone end audio interface 8 is electrically connected with earphone end microphone 4 and loudspeaker 2 respectively, the audio input end of noise reduction chip 3, the ambient noise receiving terminal, output and power input respectively with equipment output audio signal module 11, equipment end control switch 6, equipment end audio interface 7 and power supply 12 are electrically connected, equipment end control switch 6 respectively with equipment end audio interface 7, noise reduction chip 3 and earphone Mike output interface 13 are electrically connected, when the present invention worked, equipment end audio interface 7 was connected with earphone end audio interface 8.
Described earphone end microphone 4, loudspeaker 2 and earphone end audio interface 8 all be arranged in the earphone that uses 9;
Described noise reduction chip 3, equipment end control switch 6, equipment end audio interface 7, equipment output audio signal module 11, power supply 12 and earphone Mike output interface 13 all are arranged in institute's use equipment 10;
Described earphone end audio interface 8 is provided with earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84, wherein: earphone Mike port 81 is electrically connected with earphone end microphone 4, and earphone ground port 82, earphone L channel port 83 and earphone R channel port 84 all are electrically connected with loudspeaker 2.
Described equipment end audio interface 7 is provided with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74, wherein: equipment ground port 72, equipment L channel port 73 and equipment R channel port 74 all are electrically connected with noise reduction chip 3 outputs, and equipment Mike port 71 is electrically connected with equipment end control switch 6 control ends.
It is that corresponding port is complementary that described earphone end audio interface 8 is complementary with equipment end audio interface 7.
Described earphone Mike port 81, earphone ground port 82, earphone L channel port 83 and earphone R channel port 84 are corresponding one by one with equipment Mike port 71, equipment ground port 72, equipment L channel port 73 and equipment R channel port 74 respectively, are corresponding port.
Described equipment end control switch 6 is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, one switch contact D is electrically connected with earphone Mike output interface 13 and promptly controls 4 work of earphone end microphone, and its another switch contact C is electrically connected with the ambient noise receiving terminal of noise reduction chip 3 and promptly controls 3 work of noise reduction chip.
Described equipment end control switch 6 control noise reduction chip 3 work or 4 work of earphone end microphone, this noise reduction chip 3 is with the signal of ambient noise analyzing and processing for offseting with former ambient noise of input, and what make 3 outputs of noise reduction chip is the audio signal of slave unit output audio signal module 11 inputs.
When the present invention uses, control appliance end control switch 6, can realize two kinds of patterns: common headset pattern and noise reduction chip operation pattern, when equipment end control switch 6 switches to the contact that connects 4 work of control earphone end microphone, form common headset pattern, when equipment end control switch 6 all switches the contact that connects 3 work of control noise reduction chip, form noise reduction chip operation pattern.
This device uses earphone end microphone 4 also can realize decrease of noise functions.
Claims (10)
1. noise cancelling headphone interface architecture, it is characterized in that, comprise: noise reduction control module and equipment end control switch, wherein: the noise reduction control module is electrically connected with ambient noise receiver, loudspeaker, earphone end audio interface and earphone end microphone respectively, and the equipment end control switch is electrically connected with power supply, earphone Mike output interface and equipment end audio interface respectively.
2. noise cancelling headphone interface architecture according to claim 1, it is characterized in that, the ambient noise receiving terminal of described noise reduction control module, output and earphone Mike input are electrically connected with ambient noise receiver, loudspeaker and earphone end microphone respectively, and the audio input end of the control end of noise reduction control module and noise reduction control module all is electrically connected with earphone end audio interface;
The control end of described equipment end control switch is electrically connected with the equipment end audio interface;
Described noise reduction control module, ambient noise receiver, earphone end microphone, loudspeaker and earphone end audio interface all be arranged at use in the earphone;
Described equipment end control switch, equipment end audio interface, equipment output audio signal module, power supply and earphone Mike output interface all are arranged in institute's use equipment;
Described noise reduction control module comprises: noise reduction chip and earphone end control switch, wherein: earphone end control switch is electrically connected with the power input of earphone end audio interface, earphone end microphone and noise reduction chip respectively, and ambient noise receiving terminal, output and the audio input end of noise reduction chip is electrically connected with ambient noise receiver, loudspeaker and earphone end audio interface respectively.
3. noise cancelling headphone interface architecture according to claim 2, it is characterized in that, described earphone end audio interface is provided with earphone Mike port, earphone ground port, earphone L channel port and earphone R channel port, wherein: earphone Mike port is electrically connected with the control end of earphone end control switch, and earphone ground port, earphone L channel port and earphone R channel port all are electrically connected with the audio input end of noise reduction chip;
Described equipment end audio interface is provided with equipment Mike port, equipment ground port, equipment L channel port and equipment R channel port, wherein: equipment ground port, equipment L channel port and equipment R channel port all are electrically connected with equipment output audio signal module, and equipment Mike port is electrically connected with the control end of equipment end control switch;
It is that corresponding port is complementary that described earphone end audio interface is complementary with the equipment end audio interface.
4. noise cancelling headphone interface architecture according to claim 2, it is characterized in that, described earphone end control switch is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, the one switch contact is electrically connected with earphone end microphone, and its another switch contact is electrically connected with the power input of noise reduction chip;
Described equipment end control switch is a single-pole double-throw switch (SPDT), and this single-pole double-throw switch (SPDT) has two switch contacts, and the one switch contact is electrically connected with earphone Mike output interface, and its another switch contact is electrically connected with power supply.
5. noise cancelling headphone interface architecture, it is characterized in that, comprise: noise reduction control module and earphone end ring border sound receiver module, wherein: earphone end ring border sound receiver module is electrically connected with earphone end audio interface, earphone end audio interface is electrically connected with loudspeaker, and the noise reduction control module is electrically connected with equipment output audio signal module, earphone Mike output interface and equipment end audio interface respectively.
6. noise cancelling headphone interface architecture according to claim 5, it is characterized in that, the audio input end of described noise reduction control module, earphone Mike working end and power input are electrically connected with equipment output audio signal module, earphone Mike output interface and power supply respectively, and the output of noise reduction control module and control end all are electrically connected with the equipment end audio interface;
Described earphone end ring border sound receiver module, loudspeaker and earphone end audio interface all be arranged at use in the earphone;
Described noise reduction control module, equipment end audio interface, earphone Mike output interface, equipment output audio signal module and power supply all are arranged in institute's use equipment;
Described noise reduction control module comprises: noise reduction chip and equipment end control switch, wherein: the audio input end of noise reduction chip, output, ambient noise receiving terminal and power input are electrically connected with equipment output audio signal module, equipment end audio interface, equipment end control switch and power supply respectively, and the equipment end control switch is electrically connected with equipment end audio interface and earphone Mike output interface respectively.
7. noise cancelling headphone interface architecture according to claim 6, it is characterized in that, described equipment end control switch is a single-pole double-throw switch (SPDT), this single-pole double-throw switch (SPDT) has two switch contacts, the one switch contact is electrically connected with earphone Mike output interface, and its another switch contact is electrically connected with the ambient noise receiving terminal of noise reduction chip;
Described earphone end audio interface is provided with earphone Mike port, earphone ground port, earphone L channel port and earphone R channel port, wherein: earphone Mike port is electrically connected with earphone end ring border sound receiver module, and earphone ground port, earphone L channel port and earphone R channel port all are electrically connected with loudspeaker;
Described equipment end audio interface is provided with equipment Mike port, equipment ground port, equipment L channel port and equipment R channel port, wherein: equipment ground port, equipment L channel port and equipment R channel port all are electrically connected with the output of noise reduction control module, and equipment Mike port is electrically connected with the control end of equipment end control switch;
It is that corresponding port is complementary that described earphone end audio interface is complementary with the equipment end audio interface.
8. noise cancelling headphone interface architecture according to claim 5 is characterized in that, described earphone end ring border sound receiver module is controlling receiver module or single microphone receiver module.
9. noise cancelling headphone interface architecture according to claim 8, it is characterized in that, when earphone end ring border sound receiver module is the controlling receiver module, this controlling receiver module comprises: earphone end microphone, ambient noise receiver and earphone end control switch, and wherein: earphone end control switch is electrically connected with earphone end microphone, ambient noise receiver and earphone end audio interface respectively;
Described earphone end control switch is a single-pole double-throw switch (SPDT), and this single-pole double-throw switch (SPDT) has two switch contacts, and the one switch contact is electrically connected with earphone end microphone, and its another switch contact is electrically connected with the ambient noise receiver.
10. noise cancelling headphone interface architecture according to claim 8, it is characterized in that, when earphone end ring border sound receiver module was the single microphone receiver module, described single microphone receiver module adopted earphone end microphone, and this earphone end microphone is electrically connected with earphone end audio interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110221379.5A CN102291643B (en) | 2011-08-03 | 2011-08-03 | Noise reduction earphone interface structure |
Applications Claiming Priority (1)
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| CN201110221379.5A CN102291643B (en) | 2011-08-03 | 2011-08-03 | Noise reduction earphone interface structure |
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| WO2014180023A1 (en) * | 2013-05-08 | 2014-11-13 | 安百特半导体有限公司 | Method and device for supplying power for anc earphone using power supply of electronic device |
| CN104284273A (en) * | 2013-07-01 | 2015-01-14 | 美律电子(深圳)有限公司 | Handheld electronic device and corresponding anti-noise earphone |
| CN105323680A (en) * | 2014-07-30 | 2016-02-10 | 三星电子株式会社 | Audio device |
| WO2016127528A1 (en) * | 2015-02-09 | 2016-08-18 | 深圳航天金悦通科技有限公司 | Low-power-consumption in-ear active noise reduction music earphone and noise reduction method |
| WO2016183712A1 (en) * | 2015-05-15 | 2016-11-24 | 华为技术有限公司 | Method and terminal for configuring noise reduction earphone, and noise reduction earphone |
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| CN201616843U (en) * | 2010-03-18 | 2010-10-27 | 华为终端有限公司 | Audio frequency device capable of lowering noise and noise reducing mobile phone |
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| CN201383326Y (en) * | 2009-04-21 | 2010-01-13 | 希姆通信息技术（上海）有限公司 | Noise reduction device of mobile phone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014180023A1 (en) * | 2013-05-08 | 2014-11-13 | 安百特半导体有限公司 | Method and device for supplying power for anc earphone using power supply of electronic device |
| US9615159B2 (en) | 2013-05-08 | 2017-04-04 | Anpac Semiconductor Limited | Method and device for supplying power for active noise cancelation earphone by utilization of power source of electronic equipment |
| CN104284273A (en) * | 2013-07-01 | 2015-01-14 | 美律电子(深圳)有限公司 | Handheld electronic device and corresponding anti-noise earphone |
| CN104284273B (en) * | 2013-07-01 | 2018-03-30 | 美律电子(深圳)有限公司 | Portable electric device and corresponding anti-noise earphone |
| CN105323680A (en) * | 2014-07-30 | 2016-02-10 | 三星电子株式会社 | Audio device |
| WO2016127528A1 (en) * | 2015-02-09 | 2016-08-18 | 深圳航天金悦通科技有限公司 | Low-power-consumption in-ear active noise reduction music earphone and noise reduction method |
| WO2016183712A1 (en) * | 2015-05-15 | 2016-11-24 | 华为技术有限公司 | Method and terminal for configuring noise reduction earphone, and noise reduction earphone |
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| Publication number | Publication date |
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| CN102291643B (en) | 2014-03-12 |
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