CN212486771U - Reset circuit and TWS earphone - Google Patents
Reset circuit and TWS earphone Download PDFInfo
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- CN212486771U CN212486771U CN202021622199.9U CN202021622199U CN212486771U CN 212486771 U CN212486771 U CN 212486771U CN 202021622199 U CN202021622199 U CN 202021622199U CN 212486771 U CN212486771 U CN 212486771U
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Abstract
The utility model discloses a reset circuit and TWS earphone. The reset circuit comprises a driving unit, a first switch unit, a first contact, a second switch unit, a reset unit and a third contact, wherein the driving unit, the first switch unit, the first contact and the second contact are arranged in the charging box; the first output end of the first switch unit is connected with the first contact, and the second output end of the first switch unit is connected with the second contact; the third contact is respectively connected with the input end of the second switch unit and the first end of the reset unit; the output end of the second switch unit is connected with the second end of the reset unit. Wherein, through charging box and earphone contact when the earphone takes place the condition such as crash, utilize the charging box to provide reset voltage for the earphone, carry out hardware fast and reset, promoted user and used experience.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a reset circuit and TWS earphone.
Background
With the development of bluetooth Wireless technology, real bluetooth Wireless (TWS) products, such as TWS headsets, have gained favor of consumers due to small size and portability.
However, various abnormal situations such as a crash of the electronic product always occur with a certain probability, and when the electronic product is abnormal, the electronic product cannot be reset by using a software reset method, and the same applies to the TWS headset. Moreover, since the battery of the TWS headset is usually wrapped inside the headset and cannot be detached, once abnormal conditions such as crash occur, hardware reset can be realized only when the battery power is exhausted, which affects the user experience of the product.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a reset circuit and TWS earphone aims at solving prior art, and the technical problem that the TWS earphone can't realize quick hardware reset.
In order to achieve the above object, the present invention provides a reset circuit, which includes: set up drive unit, first switch unit, first contact and the second contact in the box that charges, set up second switch unit, reset unit and the third contact in the earphone, wherein:
the first end of the driving unit is connected with the input end of the first switch unit, the second end of the driving unit is respectively connected with the first output end of the first switch unit and the first contact, and the third end of the driving unit is respectively connected with the second output end of the first switch unit and the second contact;
the first output end of the first switch unit is connected with the first contact, and the second output end of the first switch unit is connected with the second contact;
the third contact is respectively connected with the input end of the second switch unit and the first end of the reset unit;
the output end of the second switch unit is connected with the second end of the reset unit;
the driving unit is used for sending a conducting signal to the first switch unit when receiving the reset signal;
the first switch unit is used for being conducted when receiving the conducting signal and providing reset voltage for the second switch unit when the first contact is contacted with the third contact or the second contact is contacted with the third contact;
the second switch unit is used for being conducted when receiving the reset voltage and sending a first level to the reset unit;
a reset unit for resetting upon receiving the first level.
Preferably, the drive unit comprises a microcontroller, wherein;
the reset control end of the microcontroller is a first end of the driving unit, the first communication end is a second end of the driving unit, and the second communication end is a third end of the driving unit.
Preferably, the first switching unit comprises a switching subunit and a protection subunit, wherein;
the first end of the switch subunit is connected with a first power supply, the second end of the switch subunit is connected with a reset control end, and the third end of the switch subunit is connected with the first end of the protection subunit;
the second end of the protection subunit is a first output end of the first switch unit, and the third end is a second output end of the first switch unit.
Preferably, the switch subunit includes a first resistor, a second resistor, a third resistor and a first MOS transistor, where:
the first end of the first resistor is the second end of the switch subunit, and the second end is respectively connected with the first end of the second resistor and the grid electrode of the first MOS tube;
the second end of the second resistor and the source electrode of the first MOS tube are both the first ends of the switch subunits;
the drain electrode of the first MOS tube is connected with the first end of the third resistor;
and the second end of the third resistor is the third end of the switch subunit.
Preferably, the protection subunit comprises a first diode and a second diode, wherein:
the anode of the first diode and the anode of the second diode are both the first ends of the protection subunits;
the cathode of the first diode is the second end of the protection subunit;
the cathode of the second diode is the third end of the protection subunit.
Preferably, the resistance value of the second resistor is greater than the resistance value of the first resistor or the resistance value of the third resistor.
Preferably, the reset unit includes a bluetooth chip, wherein:
the communication end of the Bluetooth chip is the first end of the reset unit, and the reset end is the second end of the reset unit.
Preferably, the second switch unit includes a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and a second MOS transistor, wherein:
the first end of the fourth resistor is the input end of the second switch unit, and the second end of the fourth resistor is connected with the source electrode of the second MOS tube;
the drain electrode of the second MOS tube and the first end of the fifth resistor are both output ends of the second switch unit, and the grid electrode of the second MOS tube is respectively connected with the first end of the sixth resistor and the first end of the seventh resistor;
the drain electrode of the second MOS tube is connected with the first end of the fifth resistor;
the second end of the fifth resistor and the second end of the seventh resistor are grounded;
and the second end of the sixth resistor is connected with a second power supply.
Preferably, the sixth resistor and the seventh resistor are both adjustable resistors.
The utility model discloses still provide a TWS earphone, TWS earphone includes reset circuit as above.
The utility model arranges a driving unit, a first switch unit, a first contact and a second contact in the charging box, and arranges a second switch unit, a reset unit and a third contact in the earphone; the first end of the driving unit is connected with the input end of the first switch unit, the second end of the driving unit is respectively connected with the first output end of the first switch unit and the first contact, and the third end of the driving unit is respectively connected with the second output end of the first switch unit and the second contact; the first output end of the first switch unit is connected with the first contact, and the second output end of the first switch unit is connected with the second contact; the third contact is respectively connected with the input end of the second switch unit and the first end of the reset unit; the output end of the second switch unit is connected with the second end of the reset unit. The driving unit sends a conducting signal to the first switch unit when receiving the reset signal; the first switch unit is conducted when receiving the conducting signal and provides reset voltage for the second switch unit when the first contact is contacted with the third contact or the second contact is contacted with the third contact; the second switch unit is conducted when receiving the reset voltage and sends a first level to the reset unit; the reset unit resets upon receiving the first level. Wherein, when the earphone takes place unusual circumstances such as crash, utilize the box that charges to provide reset voltage for the earphone, carry out hardware fast and reset, promoted user and used experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a functional block diagram of an embodiment of the reset circuit of the present invention;
fig. 2 is an alternative structure diagram of the reset circuit of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Charging box | P1～P3 | First to |
| 20 | Earphone set | R1～R7 | First to |
| 110 | Drive unit | Q1～Q2 | First MOS transistor to |
| 120 | First switch unit | D1～D2 | First to |
| 210 | Second switch unit | VCC1～VCC2 | First power supply to |
| 220 | Reset unit | BT | Bluetooth |
| 121 | Switch subunit | MCU | Micro-controller |
| 122 | Protection subunit |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a reset circuit.
Referring to fig. 1, in an embodiment, the reset circuit includes a driving unit 110, a first switching unit 120, a first contact P1 and a second contact P2 disposed in the charging box 10, a second switching unit 210, a reset unit 220 and a third contact P3 disposed in the earphone 20, wherein:
a first end of the driving unit 110 is connected to an input end of the first switching unit 120, a second end of the driving unit is respectively connected to a first output end of the first switching unit 120 and the first contact P1, and a third end of the driving unit is respectively connected to a second output end of the first switching unit 120 and the second contact P2;
the first output terminal of the first switching unit 120 is connected to the first contact P1, and the second output terminal is connected to the second contact P2;
the third contact P3 is respectively connected to the input terminal of the second switch unit 210 and the first terminal of the reset unit 220;
the output end of the second switching unit 210 is connected with the second end of the resetting unit 220;
a driving unit 110 for transmitting a turn-on signal to the first switching unit 120 upon receiving a reset signal;
a first switching unit 120 for turning on upon receiving the turn-on signal and providing a reset voltage to the second switching unit 210 when the first contact P1 is in contact with the third contact P3 or the second contact P2 is in contact with the third contact P3;
a second switching unit 210 for being turned on upon receiving the reset voltage and transmitting the first level to the reset unit 220;
a reset unit 220 for resetting upon receiving the first level.
It should be understood that a plurality of contacts, such as power supply contacts and communication contacts, are generally disposed on the charging box, wherein the first contact P1 and the second contact P2 are communication contacts of the charging box 10, i.e., contacts corresponding to a communication interface of the charging box 10, such as contacts corresponding to a UART interface. The first contact P1 and the second contact P2 are typically provided as metal contacts POGO PIN on the charging box 10.
The third contact P3 is a communication contact of the headset 20, i.e. a contact corresponding to the communication interface of the headset 20, and the third contact P3 is also typically provided as a metal contact POGO PIN on the headset 20.
The earphone 20 includes a left earphone and a right earphone, and the second switch unit 210, the reset unit 220 and the third contact P3 may be disposed in the left earphone or the right earphone, which is not limited in this embodiment. When the second switch unit 210, the reset unit 220 and the third contact P3 are disposed in the left earphone, if the charging box 20 is in contact with the earphone 10, the third contact P3 is in contact with the second contact P2, otherwise, the first contact P1 is in contact with the second contact P2.
It should be noted that, when the driving unit 110 receives the reset signal, it is determined that the earphone needs to be reset, at this time, the output of the communication signal is stopped, and a conducting signal is sent to the first switching unit 120; the communication signal is normally output when it is determined that the headset does not need to be reset, and a cutoff signal is transmitted to the first switching unit 120.
The first switching unit 120 is turned on when receiving the turn-on signal, the second switching unit 210 is turned on when receiving the reset voltage, and transmits a first level to the reset unit 220, and the reset unit 220 realizes reset when receiving the first level;
the first switch unit 120 is turned off when receiving the cut-off signal, and the communication signal is transmitted to the reset unit through the communication contact of the charging box and the communication contact of the earphone, thereby realizing normal communication.
In a specific implementation, the second switching unit 210 is turned on when receiving the reset voltage, and transmits a high level to the second terminal of the reset unit 220, and is turned off when not receiving the reset voltage, so that the first terminal of the reset unit 220 receives the communication signal; the reset unit 220 performs a reset when receiving a high level, and implements data communication when receiving a communication signal.
In the embodiment, the driving unit, the first switch unit, the first contact and the second contact are arranged in the charging box, and the second switch unit, the reset unit and the third contact are arranged in the earphone; the first end of the driving unit is connected with the input end of the first switch unit, the second end of the driving unit is respectively connected with the first output end of the first switch unit and the first contact, and the third end of the driving unit is respectively connected with the second output end of the first switch unit and the second contact; the first output end of the first switch unit is connected with the first contact, and the second output end of the first switch unit is connected with the second contact; the third contact is respectively connected with the input end of the second switch unit and the first end of the reset unit; the output end of the second switch unit is connected with the second end of the reset unit. The driving unit sends a conducting signal to the first switch unit when receiving the reset signal; the first switch unit is conducted when receiving the conducting signal and provides reset voltage for the second switch unit when the first contact is contacted with the third contact or the second contact is contacted with the third contact; the second switch unit is conducted when receiving the reset voltage and sends a first level to the reset unit; the reset unit resets upon receiving the first level. Wherein, when the earphone takes place unusual circumstances such as crash, the communication contact on multiplexing charging box and the earphone to utilize charging box to provide reset voltage for the earphone, carry out hardware fast and reset, promoted user and used experience.
Further, referring to fig. 2, fig. 2 is a schematic diagram of an alternative structure of the reset circuit of fig. 1.
In this embodiment, the driving unit 110 includes a microcontroller MCU, wherein:
the Reset control terminal Reset _ control of the micro controller MCU is a first terminal of the driving unit 110, the first communication terminal POGO _ UART _ R is a second terminal of the driving unit 110, and the second communication terminal POGO _ UART _ L is a third terminal of the driving unit 110.
Further, the first switch unit 120 includes a switch subunit 121 and a protection subunit 122, wherein:
a first terminal of the switch subunit 121 is connected to a first power VCC1, a second terminal is connected to a Reset control terminal Reset _ control, and a third terminal is connected to a first terminal of the protection subunit 122;
the second terminal of the protection subunit 122 is a first output terminal of the first switching unit 120, and the third terminal is a second output terminal of the first switching unit 120.
Specifically, the switch subunit 121 includes a first resistor R1, a second resistor R2, a third resistor R3, and a first MOS transistor Q1, wherein:
a first end of the first resistor R1 is a second end of the switch subunit 121, and a second end of the first resistor R1 is respectively connected to a first end of the second resistor R2 and a gate of the first MOS transistor Q1;
the second end of the second resistor R2 and the source of the first MOS transistor Q1 are both the first end of the switch subunit 121;
the drain electrode of the first MOS transistor Q1 is connected with the first end of the third resistor R3;
the second terminal of the third resistor R3 is the third terminal of the switch subunit 121.
The protection subunit 122 includes a first diode D1 and a second diode D2, wherein:
the anode of the first diode D1 and the anode of the second diode D2 are both the first end of the protection subunit 122;
the cathode of the first diode D1 is the second terminal of the protection subunit 122;
the cathode of the second diode D2 is the third terminal of the protection subunit 122.
It should be understood that the first resistor R1 and the third resistor R3 are both coupled resistors, the resistance of the first resistor R1 is preferably 10K Ω, and the resistance of the third resistor R3 is preferably 1K Ω; the second resistor R2 is used to clamp the base voltage of the first MOS transistor Q1, and when the Reset control terminal Reset _ control of the microcontroller MCU is set to a high impedance state, the gate voltage of the first MOS transistor Q1 is pulled up to the first power supply VCC1, so as to ensure that the first MOS transistor Q1 is in a normally off state when the Reset control terminal Reset _ control of the microcontroller MCU is set to the high impedance state, thereby avoiding outputting the Reset voltage. The resistance of the second resistor R2 is preferably greater than the resistance of the first resistor R1 or the resistance of the third resistor R3 to reduce leakage current, and the resistance of the second resistor R2 is preferably 1M Ω.
The first power supply VCC1 is a power supply boosted by the booster chip, and its voltage value is usually 5V. The first diode D1 and the second diode D2 prevent the current from flowing backward and damaging the first MOS transistor Q1.
Further, the reset unit 220 includes a bluetooth chip BT, wherein:
the POGO-UART communication end of the Bluetooth chip BT is a first end of the Reset unit 220, and the Reset end Reset is a second end of the Reset unit 220.
The second switch unit 210 includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and a second MOS transistor Q2, wherein:
a first end of the fourth resistor R4 is an input end of the second switching unit 210, and a second end thereof is connected to a source of the second MOS transistor Q2;
the drain of the second MOS transistor Q2 and the first end of the fifth resistor R5 are both the output end of the second switch unit 210, and the gates are respectively connected to the first end of the sixth resistor R6 and the first end of the seventh resistor R7;
the drain electrode of the second MOS transistor Q2 is connected with the first end of the fifth resistor R5;
a second end of the fifth resistor R5 and a second end of the seventh resistor R7 are grounded;
a second terminal of the sixth resistor R6 is connected to a second power source VCC 2.
In a specific implementation, the fourth resistor R4 and the fifth resistor R5 are both coupling resistors, the resistance of the fourth resistor R4 is preferably 1K Ω, and the resistance of the fifth resistor R5 is preferably 47K Ω; the sixth resistor R6 and the seventh resistor R7 can be adjustable resistors, so as to change different resistance values according to circuit requirements.
It should be appreciated that the second power supply VCC2 is the battery voltage in the headset, which is between 0-3.7V. The voltage of the second power VCC2 is divided by the sixth resistor R6 and the seventh resistor R7 to provide a voltage to the gate of the second MOS transistor Q2.
Hereinafter, the working principle of the reset circuit of the embodiment will be described by taking as an example that the voltage provided by the second power VCC2 is 3.7V, the resistances of the sixth resistor R6 and the seventh resistor R7 are both 1M Ω, the resistance of the fourth resistor R4 is 1K Ω, and the resistance of the fifth resistor R5 is 47K Ω:
when the charging box is in communication with the earphone, the microcontroller MCU sets the Reset Control terminal Reset _ Control thereof to a high impedance state, at which time the gate of the first MOS transistor Q1 is pulled up by the second resistor R2, and the voltage difference V between the gate and the source of the first MOS transistor Q1 is set to be a high impedance stategsWhen the voltage is equal to 0, the first MOS transistor Q1 is turned off, and the source voltage V of the second MOS transistor Q2s＝Vp21.8V, the gate voltage V of the second MOS transistor Q2gThe second MOS tube Q2 is also in a cut-off state when the voltage is 1.65-2.1V, and a communication signal is sent to a third contact P3 in the earphone and a communication end POGO-UART of a Bluetooth chip BT through a first communication end POGO _ UART _ R or a second communication end POGO _ UART _ L, a first contact P1 or a second contact P2 of a microcontroller MCU in the charging box, so that normal communication between the charging box and the earphone is realized.
When the earphone needs to be Reset, the microcontroller MCU sets the first and second communication terminals POGO _ UART _ R and POGO _ UART _ L to high impedance state, and sets the Reset Control terminal Reset _ Control to low level, at this time, the first MOS transistor Q1 is turned on, the source voltage of the second MOS transistor Q2 is the Reset voltage (about 4.7V) provided by the charging box 10, and the voltage difference V between the gate and the source of the second MOS transistor Q2 is VgsThe second MOS transistor Q2 is turned on when the voltage is-2.6 to-3.05V, and the drain of the second MOS transistor Q2 outputs a high level to the Reset terminal Reset of the bluetooth chip BT, so that the bluetooth chip BT is Reset.
This embodiment is through the specific design of drive unit, first switch unit, second switch unit and reset unit, through the communication contact between multiplexing box and the earphone of charging, only uses a small amount of devices can realize utilizing the box of charging to reset the earphone, and the circuit is with low costs, has reduced the manufacturing cost of product.
The utility model also provides a TWS earphone, which comprises the reset circuit, the circuit structure of the reset circuit of the TWS earphone can refer to the above embodiment, and the details are not repeated herein; it can be understood that, since the TWS headset of the present embodiment adopts the technical solution of the reset circuit, the TWS headset has all the above-mentioned beneficial effects.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a reset circuit, its characterized in that, reset circuit sets up second switch unit, reset unit and third contact in the earphone including setting up drive unit, first switch unit, first contact and the second contact in charging box, wherein:
the first end of the driving unit is connected with the input end of the first switch unit, the second end of the driving unit is respectively connected with the first output end of the first switch unit and the first contact, and the third end of the driving unit is respectively connected with the second output end of the first switch unit and the second contact;
a first output end of the first switch unit is connected with the first contact, and a second output end of the first switch unit is connected with the second contact;
the third contact is respectively connected with the input end of the second switch unit and the first end of the reset unit;
the output end of the second switch unit is connected with the second end of the reset unit;
the driving unit is used for sending a conducting signal to the first switch unit when receiving a reset signal;
the first switch unit is used for being turned on when receiving the turn-on signal and providing a reset voltage for the second switch unit when the first contact is contacted with the third contact or the second contact is contacted with the third contact;
the second switch unit is used for being conducted when receiving the reset voltage and sending a first level to the reset unit;
the reset unit is used for resetting when the first level is received.
2. The reset circuit of claim 1, wherein the drive unit comprises a microcontroller, wherein:
the reset control end of the microcontroller is the first end of the driving unit, the first communication end is the second end of the driving unit, and the second communication end is the third end of the driving unit.
3. The reset circuit of claim 2, wherein the first switching unit comprises a switching subunit and a protection subunit, wherein:
the first end of the switch subunit is connected with a first power supply, the second end of the switch subunit is connected with the reset control end, and the third end of the switch subunit is connected with the first end of the protection subunit;
the second end of the protection subunit is the first output end of the first switch unit, and the third end is the second output end of the first switch unit.
4. The reset circuit of claim 3, wherein the switch subunit comprises a first resistor, a second resistor, a third resistor, and a first MOS transistor, wherein:
the first end of the first resistor is the second end of the switch subunit, and the second end of the first resistor is respectively connected with the first end of the second resistor and the grid electrode of the first MOS tube;
the second end of the second resistor and the source electrode of the first MOS tube are both the first end of the switch subunit;
the drain electrode of the first MOS tube is connected with the first end of the third resistor;
and the second end of the third resistor is the third end of the switch subunit.
5. The reset circuit of claim 4, wherein the protection subunit comprises a first diode and a second diode, wherein:
the anode of the first diode and the anode of the second diode are both the first ends of the protection subunits;
the cathode of the first diode is the second end of the protection subunit;
and the cathode of the second diode is the third end of the protection subunit.
6. The reset circuit according to claim 4, wherein a resistance value of the second resistor is larger than a resistance value of the first resistor or a resistance value of the third resistor.
7. The reset circuit of claim 1, wherein the reset unit comprises a bluetooth chip, wherein:
the communication end of the Bluetooth chip is the first end of the reset unit, and the reset end is the second end of the reset unit.
8. The reset circuit of claim 7, wherein the second switch unit comprises a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and a second MOS transistor, wherein:
the first end of the fourth resistor is the input end of the second switch unit, and the second end of the fourth resistor is connected with the source electrode of the second MOS tube;
the drain electrode of the second MOS tube and the first end of the fifth resistor are both output ends of the second switch unit, and the grid electrode of the second MOS tube is respectively connected with the first end of the sixth resistor and the first end of the seventh resistor;
the drain electrode of the second MOS tube is connected with the first end of the fifth resistor;
a second end of the fifth resistor and a second end of the seventh resistor are grounded;
and the second end of the sixth resistor is connected with a second power supply.
9. The reset circuit of claim 8, wherein the sixth resistor and the seventh resistor are both adjustable resistors.
10. A TWS headset comprising a reset circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622199.9U CN212486771U (en) | 2020-08-06 | 2020-08-06 | Reset circuit and TWS earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622199.9U CN212486771U (en) | 2020-08-06 | 2020-08-06 | Reset circuit and TWS earphone |
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| CN212486771U true CN212486771U (en) | 2021-02-05 |
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| CN202021622199.9U Active CN212486771U (en) | 2020-08-06 | 2020-08-06 | Reset circuit and TWS earphone |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114095820A (en) * | 2021-10-28 | 2022-02-25 | 歌尔科技有限公司 | TWS earphone control method, TWS earphone and readable storage medium |
| CN114745630A (en) * | 2022-06-09 | 2022-07-12 | 荣耀终端有限公司 | Earphone, earphone system and control method |
| CN116667833A (en) * | 2023-05-05 | 2023-08-29 | 合肥中感微电子有限公司 | Reset circuit, chip, earphone and earphone assembly |
-
2020
- 2020-08-06 CN CN202021622199.9U patent/CN212486771U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114095820A (en) * | 2021-10-28 | 2022-02-25 | 歌尔科技有限公司 | TWS earphone control method, TWS earphone and readable storage medium |
| CN114745630A (en) * | 2022-06-09 | 2022-07-12 | 荣耀终端有限公司 | Earphone, earphone system and control method |
| CN116667833A (en) * | 2023-05-05 | 2023-08-29 | 合肥中感微电子有限公司 | Reset circuit, chip, earphone and earphone assembly |
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