CN209914022U - Noise reduction earphone - Google Patents
Noise reduction earphone Download PDFInfo
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- CN209914022U CN209914022U CN201920809253.1U CN201920809253U CN209914022U CN 209914022 U CN209914022 U CN 209914022U CN 201920809253 U CN201920809253 U CN 201920809253U CN 209914022 U CN209914022 U CN 209914022U
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- noise reduction
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- noise reducing
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Abstract
The utility model discloses a noise reduction earphone, which comprises a noise reduction circuit, a microphone wire, a battery, an on-off circuit and a detection unit, wherein the on-off circuit is respectively electrically connected with the battery, the noise reduction circuit and the microphone wire; the detection unit detects the wearing state of the noise reduction earphone and outputs a corresponding electric signal to the noise reduction circuit, and the noise reduction circuit starts a noise reduction function or enters a low power consumption state according to the electric signal. The utility model discloses utilize microphone line and detecting element, make this earphone of making an uproar of falling need not manual operation, can the automatic switch fall the function of making an uproar, have the advantage that low power dissipation, duration are long simultaneously.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to an earphone of making an uproar falls.
Background
The noise reduction earphone is an earphone which reduces noise by using a certain method.
The existing noise reduction earphone is generally designed with a noise reduction switch, and a user needs to manually turn on or off the noise reduction earphone when using the noise reduction earphone. Such as: huacheng AM185 noise reduction headphones. Like this user need manually open when using, and user experience is poor, simultaneously, uses after accomplishing, needs user's manual closing, in case forget to close, then can cause to fall to make an uproar and open always, and simultaneously, relevant circuit also is in operating condition always, and then makes the electric quantity consumption of battery too fast, causes the earphone duration few.
At present, a microphone wire in a 3.5mm earphone has a voltage output function, but the current output capacity of the microphone wire is very small and is less than 5mA, so that the microphone wire cannot directly supply power to a noise reduction circuit, and a battery for supplying power to the noise reduction circuit is arranged in the 3.5mm earphone based on the condition that the microphone wire cannot directly supply power to the earphone.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough, the utility model discloses the technical problem that will solve is: the noise reduction earphone can be automatically switched on and off to reduce noise without manual operation, and is low in power consumption and long in endurance time.
In order to solve the technical problem, the technical scheme of the utility model is that:
a noise reducing headset comprising a noise reducing circuit, a microphone line electrically connected to the noise reducing circuit, and a battery for powering the noise reducing circuit, further comprising: the on-off circuit is respectively electrically connected with the battery, the noise reduction circuit and the microphone wire, the microphone wire transmits a trigger signal to the on-off circuit, and the on-off circuit switches on and off the battery and the noise reduction circuit according to the trigger signal; the detection unit detects the wearing state of the noise reduction earphone and outputs a corresponding electric signal to the noise reduction circuit, and the noise reduction circuit starts a noise reduction function or enters a low power consumption state according to the electric signal.
Preferably, the trigger signal is a high level and a low level; the microphone wire is inserted into terminal equipment to output high level, and the on-off circuit conducts the battery and the noise reduction circuit; the microphone line dialing terminal device outputs low level, and the on-off circuit disconnects the battery and the noise reduction circuit.
Preferably, the detection unit includes a sensor provided on the noise reduction headphone.
Preferably, the sensor is a proximity sensor or a capacitance sensor.
Preferably, the microphone line comprises a 3.5mm plug.
Preferably, the noise reduction earphone further comprises a call microphone and a noise reduction microphone electrically connected to the noise reduction circuit respectively.
Preferably, the noise reduction earphone further comprises a speaker, and the speaker is electrically connected with the noise reduction circuit.
Preferably, the noise reduction earphone further comprises a key, and the key is electrically connected with the noise reduction circuit.
Preferably, the proximity sensor is provided on an earplug of the noise reduction earphone.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the utility model discloses a noise reduction earphone, including noise reduction circuit, the microphone line that is connected with noise reduction circuit electricity to and the battery for noise reduction circuit power supply, still include break-make circuit and detecting element, wherein the break-make circuit is connected with battery, noise reduction circuit and microphone line electricity respectively, and the microphone line transmits trigger signal to the break-make circuit, and the break-make circuit switches on and breaks off battery and noise reduction circuit according to trigger signal; the detection unit detects the wearing state of the noise reduction earphone and outputs a corresponding electric signal to the noise reduction circuit, and the noise reduction circuit starts a noise reduction function or enters a low power consumption state according to the electric signal. When the microphone wire is inserted into the terminal equipment, the microphone wire outputs a trigger signal to enable the on-off circuit to be conducted, and then the battery is connected with the noise reduction circuit to supply power to the noise reduction circuit. When the detection unit detects that the noise reduction earphone is worn, the earphone is indicated to be put into use, and an electric signal is transmitted to the noise reduction circuit to start the noise reduction function. If the detection unit detects that the noise reduction earphone is not worn, the noise reduction circuit is in a low power consumption state, and therefore the endurance time is prolonged. When the microphone wire is pulled out of the terminal equipment, the microphone wire outputs a trigger signal to the on-off circuit, and the on-off circuit disconnects the battery and the noise reduction circuit, so that the noise reduction circuit does not work, namely the noise reduction function is turned off. It is visible, the utility model discloses an earphone of making an uproar falls need not manual operation can the automatic switch function of making an uproar, and low power dissipation, duration are long.
Drawings
Fig. 1 is a schematic structural diagram of the noise reduction earphone of the present invention;
fig. 2 is a schematic structural diagram of a battery compartment of the noise reduction earphone of the present invention;
in the figure: 1-proximity sensor, 2-talking microphone, 3-noise reduction microphone, 4-3.5mm plug, U1-noise reduction main chip and U2-on-off chip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, a noise reduction earphone includes a noise reduction circuit, a microphone line electrically connected to the noise reduction circuit, a battery BT for supplying power to the noise reduction circuit, an on-off circuit, and a detection unit. The on-off circuit is respectively electrically connected with the battery BT, the noise reduction circuit and the microphone wire, the microphone wire transmits a trigger signal to the on-off circuit, and the on-off circuit switches on and off the battery BT and the noise reduction circuit according to the trigger signal; the detection unit detects the wearing state of the noise reduction earphone and outputs a corresponding electric signal to the noise reduction circuit, and the noise reduction circuit starts a noise reduction function or enters a low power consumption state according to the electric signal. The trigger signal is high level and low level in the embodiment; a microphone wire is inserted into the terminal equipment to output high level, and the on-off circuit conducts the battery BT and the noise reduction circuit; the microphone line is pulled out of the terminal device to output low level, and the on-off circuit disconnects the battery BT and the noise reduction circuit. Meanwhile, the detection unit comprises a sensor arranged on the noise reduction earphone, the sensor preferably uses a proximity sensor 1, and the proximity sensor 1 is arranged on an earplug of the noise reduction earphone.
As shown in fig. 1 and fig. 2, the noise reduction earphone of the present invention, when the microphone line is not inserted into the terminal device, the terminal device in this example is described by taking a mobile phone with a 3.5mm interface as an example. The on-off circuit is in an off state, the battery BT and the noise reduction circuit are disconnected, and the noise reduction function is closed at the moment.
When the microphone wire is inserted into the mobile phone, the microphone wire outputs a high level of about 2.5V, the high level triggers the on-off circuit to be conducted, the on-off circuit preferably uses an SGM4075 on-off chip U2 in the example, and the microphone wire comprises a microphone wire and a 3.5mm plug 4; and the battery BT is conducted with the noise reduction circuit, supplies power to the noise reduction circuit and supplies power to the proximity sensor 1 through the noise reduction circuit. The noise reduction circuit in this example comprises a noise reduction main chip U1, and the noise reduction main chip U1 is preferably an AS3435 chip. Although the noise reduction circuit has working voltage, when the noise reduction earphone is not worn, the noise reduction function is in a low power consumption state, and noise reduction is not started, so that the consumption of the electric quantity of a battery is reduced, and the endurance time is prolonged.
After the noise reduction earphone is worn, the proximity sensor 1 senses and outputs a corresponding electric signal to the noise reduction circuit, the noise reduction circuit automatically starts the noise reduction function, and user experience is guaranteed.
When the noise reduction earphone is not worn, the proximity sensor 1 senses an electric signal corresponding to transmission and sends the electric signal to the noise reduction circuit, and the noise reduction circuit is turned off to enable the noise reduction function to enter low power consumption, so that the endurance time is prolonged. When the microphone wire is pulled out of the mobile phone, the microphone wire outputs low level to the on-off circuit, and the on-off circuit disconnects the battery BT and the noise reduction circuit, so that the noise reduction circuit has no working voltage.
To sum up, the utility model discloses an earphone of making an uproar falls need not manual operation, can the automatic switch fall the function of making an uproar, has promoted user experience, and has reduced the energy consumption, has prolonged the time of endurance.
The specific circuit connection structure of this embodiment is as follows:
as shown in fig. 2, the noise reduction main chip U1 is electrically connected to the proximity sensor 1, the left horn L, the right horn R, and the VOUT terminal, NOFF terminal, and NSRO terminal of the on-off chip U2, respectively, the SYS _ WAKE terminal of the on-off chip is electrically connected to the mic terminal of the microphone line, and the mic terminal transmits a trigger signal to the on-off chip U1. The ground terminal GND, the left audio signal terminal L and the right audio signal terminal R of the microphone line are electrically connected to the noise reduction main chip U1, respectively. The noise reduction main chip U1 is electrically connected to the conversation microphone 2 and the noise reduction microphone 3, respectively. The negative pole of the battery BT is grounded with the ground end GND of the on-off chip U2, and the positive pole of the battery BT is connected with the VBAT end of the on-off chip U2.
The sensor may also use a capacitive sensor that transmits a corresponding electrical signal to the noise reduction circuit by detecting the skin. When the noise reduction earphone is worn, the capacitive sensor can detect the skin of a user, and when the noise reduction earphone is not worn, the skin of the user cannot be detected, so that the wearing state of the noise reduction earphone is detected.
In addition, the proximity sensor 1 can use the laser type proximity sensor 1, when the noise reduction earphone is worn, laser emitted by the proximity sensor 1 is reflected and received by a laser receiver in the proximity sensor 1, a corresponding electric signal is output, when the noise reduction earphone is not worn, the laser receiver in the proximity sensor 1 cannot receive the laser, and a corresponding electric signal is output, so that the wearing state detection of the noise reduction earphone is realized. Of course, the detection unit is not limited to the above-listed sensors, and other detection circuits may be used.
As shown in fig. 1 and fig. 2, the noise reduction earphone of the present embodiment further includes a speaking microphone 2 and a noise reduction microphone 3 respectively electrically connected to the noise reduction circuit, a left speaker L and a right speaker R electrically connected to the noise reduction circuit, and a key electrically connected to the noise reduction circuit. Further, each component is electrically connected with a noise reduction main chip U1 of the noise reduction circuit. By adopting the structure, the noise reduction earphone structure is more optimized and compact.
In addition, the switching circuit of the present invention is not limited to the illustrated SGM4075 switching chip U2, and may also include an analog switch or a digital switch.
The above-mentioned preferred embodiments of the present invention are not intended to limit the present invention, and any modifications made within the spirit and principles of the present invention, equivalent to the modifications of the noise reduction earphone structure, should be included within the scope of the present invention.
Claims (9)
1. A noise reducing earphone comprising a noise reducing circuit, a microphone line electrically connected to the noise reducing circuit, and a battery for supplying power to the noise reducing circuit, characterized by further comprising:
the on-off circuit is respectively electrically connected with the battery, the noise reduction circuit and the microphone wire, the microphone wire transmits a trigger signal to the on-off circuit, and the on-off circuit switches on and off the battery and the noise reduction circuit according to the trigger signal;
the detection unit detects the wearing state of the noise reduction earphone and outputs a corresponding electric signal to the noise reduction circuit, and the noise reduction circuit starts a noise reduction function or enters a low power consumption state according to the electric signal.
2. The noise reducing headset of claim 1,
the trigger signal is high level and low level;
the microphone wire is inserted into terminal equipment to output high level, and the on-off circuit conducts the battery and the noise reduction circuit;
the microphone line dialing terminal device outputs low level, and the on-off circuit disconnects the battery and the noise reduction circuit.
3. The noise reducing headset of claim 1, wherein the detection unit comprises a sensor disposed on the noise reducing headset.
4. The noise reducing headset of claim 3, wherein the sensor is a proximity sensor or a capacitive sensor.
5. The noise reducing headset according to any of claims 1 to 4, wherein the microphone line comprises a 3.5mm plug.
6. The noise reducing headset of claim 5, further comprising a conversation microphone and a noise reducing microphone electrically connected to the noise reducing circuit, respectively.
7. The noise reducing headset of claim 5, further comprising a speaker electrically connected to the noise reduction circuit.
8. The noise reducing headset of claim 5, further comprising a key electrically connected to the noise reduction circuit.
9. The noise reducing headset of claim 4, wherein the proximity sensor is disposed on an ear plug of the noise reducing headset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920809253.1U CN209914022U (en) | 2019-05-31 | 2019-05-31 | Noise reduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920809253.1U CN209914022U (en) | 2019-05-31 | 2019-05-31 | Noise reduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209914022U true CN209914022U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920809253.1U Active CN209914022U (en) | 2019-05-31 | 2019-05-31 | Noise reduction earphone |
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| CN (1) | CN209914022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163391A (en) * | 2020-04-03 | 2020-05-15 | 恒玄科技(北京)有限公司 | Method for noise reduction of headphones and noise reduction headphones |
| CN111212353A (en) * | 2020-03-14 | 2020-05-29 | 深圳市同创依诺数码科技有限公司 | ES09 ANC bluetooth headset of making an uproar and earphone box thereof |
-
2019
- 2019-05-31 CN CN201920809253.1U patent/CN209914022U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111212353A (en) * | 2020-03-14 | 2020-05-29 | 深圳市同创依诺数码科技有限公司 | ES09 ANC bluetooth headset of making an uproar and earphone box thereof |
| CN111163391A (en) * | 2020-04-03 | 2020-05-15 | 恒玄科技(北京)有限公司 | Method for noise reduction of headphones and noise reduction headphones |
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