CN111615029A - Wireless earphone reset circuit, wireless earphone and reset method - Google Patents
Wireless earphone reset circuit, wireless earphone and reset method Download PDFInfo
- Publication number
- CN111615029A CN111615029A CN202010328808.8A CN202010328808A CN111615029A CN 111615029 A CN111615029 A CN 111615029A CN 202010328808 A CN202010328808 A CN 202010328808A CN 111615029 A CN111615029 A CN 111615029A
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- China
- Prior art keywords
- reset
- wireless
- mos transistor
- communication line
- reset circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Abstract
The invention discloses a wireless earphone reset circuit, a wireless earphone and a reset method, and relates to the technical field of wireless earphones. The wireless earphone includes communication line and ground wire, wireless earphone reset circuit includes: the detection circuit is connected with the communication line and the ground wire and is used for detecting the connection of the communication line and the ground wire; the reset circuit is connected with the detection circuit and the ground wire and is used for outputting a reset signal; the wireless communication chip is connected with the reset circuit and the ground wire and used for resetting according to the reset signal. Because the reset process uses hardware circuits, compared with the software reset in the prior art, the reset method is more reliable.
Description
Technical Field
The invention relates to the technical field of wireless earphones, in particular to a wireless earphone reset circuit, a wireless earphone and a reset method.
Background
Currently, one way to implement wireless headset reset is to send a command to perform software reset through a communication line of the wireless headset. However, when the earphone is busy or the software fails, the software cannot be reset, and the reliability is not high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a wireless earphone reset circuit which can realize hardware reset and is more reliable.
The invention also provides a wireless earphone.
The invention also provides a wireless earphone resetting method.
In a first aspect, an embodiment of the present invention provides a wireless headset reset circuit for resetting a wireless headset, the wireless headset including a communication line and a ground line, the wireless headset reset circuit including:
the detection circuit is used for being connected with the communication line and the ground wire, and the detection circuit is used for detecting the connection of the communication line and the ground wire;
the reset circuit is connected with the detection circuit and the ground wire and is used for outputting a reset signal;
the wireless communication chip is connected with the reset circuit and the ground wire, and the wireless communication chip is used for resetting the wireless earphone according to the reset signal.
The wireless earphone reset circuit of the embodiment of the invention at least has the following beneficial effects:
whether the communication line of the earphone is connected with the ground wire or not is detected through the detection circuit, if the communication line of the earphone is connected with the ground wire, the reset signal is output to the wireless communication chip through the reset circuit, and the wireless communication chip resets according to the reset signal to realize the reset of the earphone. Because the reset process uses hardware circuits, compared with the software reset in the prior art, the reset method is more reliable.
According to further embodiments of the wireless headset reset circuit of the present invention, the communication line comprises a communication line contact and the ground line comprises a ground line contact;
and if the communication line contact and the ground wire contact are in short circuit, the communication line is connected with the ground wire.
According to another embodiment of the wireless headset reset circuit of the present invention, the detection circuit includes a first switch, a second switch and a first capacitor, the first switch is connected to the communication line, the second switch and the first capacitor, and the first capacitor is connected to the reset circuit.
According to further embodiments of the present invention, a wireless headset reset circuit includes a third switch, and the first capacitor is coupled to the third switch.
According to other embodiments of the wireless headset reset circuit of the present invention, the first switch comprises a first MOS transistor, the second switch comprises a second MOS transistor, and the third switch comprises a third MOS transistor.
According to another embodiment of the wireless headset reset circuit of the present invention, a gate of the first MOS transistor is connected to the communication line and a gate of the second MOS transistor, a source of the first MOS transistor is connected to the power input terminal, a drain of the first MOS transistor is connected to a drain of the second MOS transistor and one end of the first capacitor, a source of the second MOS transistor is grounded, another end of the first capacitor is grounded, one end of the first capacitor is connected to a gate of the third MOS transistor, a drain of the third MOS transistor is connected to the power input terminal and the wireless communication chip, and a source of the third MOS transistor is grounded.
According to another embodiment of the wireless headset reset circuit of the present invention, the wireless communication chip is a bluetooth chip.
In a second aspect, an embodiment of the present invention provides a wireless headset, including a power module and the wireless headset reset circuit of any of the above embodiments, where the power module is connected to the detection circuit, the reset circuit, and the wireless communication chip, and the power module is configured to supply power to the detection circuit, the reset circuit, and the wireless communication chip.
According to further embodiments of the present invention, the wireless headset is a bluetooth headset.
In a third aspect, an embodiment of the present invention provides a wireless headset resetting method for resetting a wireless headset, where the wireless headset includes a communication line and a ground line, the wireless headset resetting method including:
detecting whether the communication line is connected with the ground wire;
if so, outputting a reset signal;
and resetting the wireless earphone according to the reset signal.
Drawings
Fig. 1 is a block diagram of a wireless headset reset circuit in an embodiment of the invention;
fig. 2 is a circuit schematic of a wireless headset reset circuit in an embodiment of the invention;
fig. 3 is a flow chart of a wireless headset resetting method according to an embodiment of the present invention.
Reference numerals: a detection circuit 100; a reset circuit 200; the wireless communication chip 300.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
In the description of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. If a feature is referred to as being "disposed," "secured," "connected," or "mounted" to another feature, it can be directly disposed, secured, or connected to the other feature or indirectly disposed, secured, connected, or mounted to the other feature.
In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
Fig. 1 is a block diagram of a wireless headset reset circuit according to an embodiment of the present invention. This wireless earphone reset circuit is used for resetting wireless earphone, and wireless earphone includes communication line and ground wire, and wireless earphone reset circuit includes:
the detection circuit 100, the detection circuit 100 is used for connecting with the communication line and the ground wire, and the detection circuit 100 is used for detecting the connection of the communication line and the ground wire;
the reset circuit 200, the reset circuit 200 is connected with the detection circuit 100 and the ground wire, the reset circuit 200 is used for outputting the reset signal;
the wireless communication chip 300, the wireless communication chip 300 is connected with the reset circuit 200 and the ground, and the wireless communication chip 300 is used for resetting the wireless earphone according to the reset signal.
In this embodiment, the detection circuit 100 detects whether the communication line and the ground line of the earphone are connected, and if so, the reset circuit 200 outputs a reset signal to the wireless communication chip 300, and the wireless communication chip 300 resets according to the reset signal, thereby resetting the earphone. Because the reset process uses hardware circuits, compared with the software reset in the prior art, the reset method is more reliable.
Further, the communication line of the wireless headset includes a communication line contact and the ground line includes a ground line contact. And if the communication line contact and the ground wire contact are in short circuit, the communication line is connected with the ground wire.
The communication line contact and the ground wire contact are exposed contacts of the wireless earphone, and when the wireless earphone is not placed in the earphone box, the communication line contact and the ground wire contact can be in short circuit through a conducting wire, so that the communication line and the ground wire can be connected. After the communication line is connected to the ground line, the reset circuit 200 outputs a reset signal to reset.
The earphone box of the wireless earphone is provided with a corresponding communication line contact and a corresponding ground wire contact, when the wireless earphone is placed into the earphone box, the communication line contact of the wireless earphone is in touch connection with the communication line contact of the earphone box, and the ground wire contact of the wireless earphone is in touch connection with the ground wire contact of the earphone box. A switch (which can be an MOS switch tube or a relay or other types of switches) is arranged between the communication line contact and the ground wire contact of the earphone box, and when the wireless earphone is placed into the earphone box, the earphone box sends a signal to control the switch of the earphone box to be switched on, so that the connection between the communication line and the ground wire of the wireless earphone can be realized. After the communication line is connected to the ground line, the reset circuit 200 outputs a reset signal to reset. In the prior art, the wireless earphone is placed in the earphone box to reset in a mode of power-on reset through the power line of the earphone, but after the wireless earphone is reset every time, the wireless earphone needs to be used again to be connected with the mobile phone, so that the user experience is poor. The reset circuit of the embodiment can well solve the problem and improve the user experience.
Further, the detection circuit 100 includes a first switch, a second switch and a first capacitor, the first switch is respectively connected to the communication line, the second switch and the first capacitor, and the first capacitor is connected to the reset circuit 200.
Further, the reset circuit 200 includes a third switch, and the first capacitor is connected to the third switch.
In some embodiments, the first switch includes a first MOS transistor, the second switch includes a second MOS transistor, and the third switch includes a third MOS transistor. It is understood that the first switch, the second switch and the third switch may be other types of switches, such as relays, etc.
Fig. 2 is a schematic circuit diagram of a wireless headset reset circuit according to an embodiment of the present invention. The TX/RX is a signal transmitting/receiving end, the signal transmitting/receiving end TX/RX is connected to the first MOS transistor Q1 through a communication line, and the first resistor R1 is a pull-up resistor of the communication line. BT _ RESET is a RESET signal output terminal, and is connected to the wireless communication chip 300.
The detection circuit 100 includes a first MOS transistor Q1, a second MOS transistor Q2, a third resistor R3, and a first capacitor C1, and the reset circuit 200 includes a second resistor R2 and a third MOS transistor Q3. The gate of the first MOS transistor Q1 is connected to the communication line and the gate of the second MOS transistor Q2, the source of the first MOS transistor Q1 is connected to the VCC, the drain of the first MOS transistor Q1 is connected to the drain of the second MOS transistor Q2 and one end of the first capacitor C1 through the third resistor R3, the source of the second MOS transistor Q2 is grounded, the other end of the first capacitor C1 is grounded, one end of the first capacitor C1 is connected to the gate of the third MOS transistor Q3, the drain of the third MOS transistor Q3 is connected to the VCC through the second resistor R2, the drain of the third MOS transistor Q3 is further connected to the wireless communication chip 300 through the RESET signal output terminal BT _ RESET, and the source of the third MOS transistor Q3 is grounded. The grounding is connected with the ground wire of the wireless earphone.
As shown in fig. 2, the communication line is connected to the ground line through a switch S1. As described above, when the wireless headset is not placed in the headset case, the switch S1 may be a wire, and the communication line and the ground line may be connected by short-circuiting the communication line contact and the ground line contact through the wire; when the wireless earphone is put into the earphone box, the switch S1 can be an MOS switch tube or a relay or other types of switches, and when the wireless earphone is put into the earphone box, the earphone box sends a signal to control the switch S1 to be switched on, so that the connection between the communication line of the wireless earphone and the ground line can be realized.
The specific principle is as follows:
when the communication line of the wireless headset is connected to the ground line, the switch S1 is turned on, and the voltage of the communication line is 0V. The voltage difference between the gate voltage and the source voltage of the first MOS transistor Q1 is the voltage value of the power input terminal VCC, the first MOS transistor Q1 is turned on, the first capacitor C1 is charged through the third resistor R3, the voltage difference between the gate voltage and the source voltage of the second MOS transistor Q2 is 0V, and the second MOS transistor Q2 is turned off. When the voltage of the first capacitor C1 rises to the on voltage of the third MOS transistor Q3, the third MOS transistor Q3 is turned on, the RESET signal output terminal BT _ RESET is at a low level, and the wireless communication chip 300 is RESET.
When the communication line and the ground wire of the wireless earphone are not connected or the wireless earphone is not in communication, the voltage of the communication line is kept at a high level. The gate voltage and the source voltage difference of the first MOS transistor Q1 are 0V, and the first MOS transistor Q1 is turned off. The voltage difference between the gate voltage and the source voltage of the second MOS transistor Q2 is the voltage value of the power input terminal VCC, the second MOS transistor Q2 is turned on, the gate voltage of the third MOS transistor Q3 is pulled to the ground, the voltage difference between the gate voltage and the source voltage of the third MOS transistor Q3 is 0V, and the third MOS transistor Q3 is turned off. The RESET signal output terminal BT _ RESET is at a high level, and the wireless communication chip 300 is not RESET.
When the wireless earphone and the earphone box communicate with each other, the voltage of the communication line is in an alternating state of 0V and high level, and the gate voltages of the first MOS transistor Q1 and the second MOS transistor Q2 are also alternating. However, due to the charging delay factors of the third resistor R3 and the first capacitor C1, the voltage of the first capacitor C1 rises slowly, and the discharge through the second MOS transistor Q2 is fast, so that the voltage of the first capacitor C1 cannot reach the on-state voltage of the third MOS transistor Q3, the third MOS transistor Q3 is turned off, the RESET signal output end BT _ RESET maintains a high level, the wireless communication chip 300 is not RESET, and the influence of the RESET on the normal use of the wireless headset during the wireless communication is avoided.
In this embodiment, the wireless communication chip 300 is a bluetooth chip, or may be another chip capable of implementing wireless communication, such as an NFC chip, to implement a wireless communication function of a wireless headset.
Further, the present embodiment also provides a wireless headset, including a power module and the wireless headset reset circuit in any of the above embodiments. The power module is connected to the detection circuit 100, the reset circuit 200, and the wireless communication chip 300, and supplies power to the detection circuit 100, the reset circuit 200, and the wireless communication chip 300 through the power input terminal VCC.
In this embodiment, the wireless communication chip 300 is a bluetooth chip, and correspondingly, the wireless headset is a bluetooth headset.
Further, the embodiment also provides a wireless headset resetting method, which is used for resetting the wireless headset, wherein the wireless headset comprises a communication line and a ground wire. As shown in fig. 3, the wireless headset resetting method includes:
s1, detecting whether the communication line is connected with the ground wire, if so, executing a step S2; otherwise, the flow is ended;
s2, outputting a reset signal;
and S3, resetting the wireless earphone according to the reset signal.
In this embodiment, the reset of the earphone is realized by detecting whether the communication line of the earphone is connected with the ground line, outputting a reset signal if the communication line of the earphone is connected with the ground line, and resetting according to the reset signal. For a specific process of the reset method, reference is made to the above description of the reset circuit, which is not repeated herein.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A wireless headset reset circuit for resetting a wireless headset, the wireless headset comprising a communication line and a ground line, the wireless headset reset circuit comprising:
the detection circuit is used for being connected with the communication line and the ground wire, and the detection circuit is used for detecting the connection of the communication line and the ground wire;
the reset circuit is connected with the detection circuit and the ground wire and is used for outputting a reset signal;
the wireless communication chip is connected with the reset circuit and the ground wire, and the wireless communication chip is used for resetting the wireless earphone according to the reset signal.
2. The wireless headset reset circuit of claim 1, wherein the communication line comprises a communication line contact and the ground line comprises a ground line contact;
and if the communication line contact and the ground wire contact are in short circuit, the communication line is connected with the ground wire.
3. The wireless headset reset circuit of claim 1, wherein the detection circuit comprises a first switch, a second switch and a first capacitor, the first switch is connected to the communication line, the second switch and the first capacitor, and the first capacitor is connected to the reset circuit.
4. The wireless headset reset circuit of claim 3, wherein the reset circuit comprises a third switch, and wherein the first capacitor is coupled to the third switch.
5. The wireless headset reset circuit of claim 4, wherein the first switch comprises a first MOS transistor, the second switch comprises a second MOS transistor, and the third switch comprises a third MOS transistor.
6. The wireless headset reset circuit according to claim 5, wherein a gate of the first MOS transistor is connected to the communication line and a gate of the second MOS transistor, a source of the first MOS transistor is connected to the power input terminal, a drain of the first MOS transistor is connected to a drain of the second MOS transistor and one end of the first capacitor, a source of the second MOS transistor is grounded, another end of the first capacitor is grounded, one end of the first capacitor is connected to a gate of the third MOS transistor, a drain of the third MOS transistor is connected to the power input terminal and the wireless communication chip, and a source of the third MOS transistor is grounded.
7. A wireless headset reset circuit according to any of claims 1 to 6 wherein the wireless communication chip is a Bluetooth chip.
8. A wireless headset, comprising a power module and the wireless headset reset circuit of any one of claims 1 to 7, wherein the power module is connected to the detection circuit, the reset circuit and the wireless communication chip, respectively, and the power module is configured to supply power to the detection circuit, the reset circuit and the wireless communication chip.
9. The wireless headset of claim 8, wherein the wireless headset is a bluetooth headset.
10. A wireless headset resetting method for resetting a wireless headset, the wireless headset comprising a communication line and a ground line, the wireless headset resetting method comprising:
detecting whether the communication line is connected with the ground wire;
if so, outputting a reset signal;
and resetting the wireless earphone according to the reset signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010328808.8A CN111615029A (en) | 2020-04-23 | 2020-04-23 | Wireless earphone reset circuit, wireless earphone and reset method |
| PCT/CN2020/112193 WO2021212718A1 (en) | 2020-04-23 | 2020-08-28 | Wireless earbud resetting circuit, wireless earbud, and resetting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010328808.8A CN111615029A (en) | 2020-04-23 | 2020-04-23 | Wireless earphone reset circuit, wireless earphone and reset method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111615029A true CN111615029A (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010328808.8A Pending CN111615029A (en) | 2020-04-23 | 2020-04-23 | Wireless earphone reset circuit, wireless earphone and reset method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111615029A (en) |
| WO (1) | WO2021212718A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112711318A (en) * | 2020-12-26 | 2021-04-27 | 广东湾区智能终端工业设计研究院有限公司 | Reset control circuit and method and terminal |
| CN114745630A (en) * | 2022-06-09 | 2022-07-12 | 荣耀终端有限公司 | Earphone, earphone system and control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203180871U (en) * | 2013-03-27 | 2013-09-04 | 潍坊歌尔电子有限公司 | Bluetooth earphone reset circuit |
| CN203522679U (en) * | 2013-10-30 | 2014-04-02 | 上海天奕达电子科技有限公司 | Reset circuit |
| CN104953992B (en) * | 2015-06-03 | 2017-08-08 | 广东欧珀移动通信有限公司 | A kind of reset circuit and electronic equipment |
| CN206908785U (en) * | 2017-04-27 | 2018-01-19 | 歌尔科技有限公司 | A kind of reset circuit and bluetooth earphone for bluetooth earphone |
| CN110740401A (en) * | 2019-10-30 | 2020-01-31 | 歌尔科技有限公司 | earphone reset device and wireless earphone equipment |
-
2020
- 2020-04-23 CN CN202010328808.8A patent/CN111615029A/en active Pending
- 2020-08-28 WO PCT/CN2020/112193 patent/WO2021212718A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112711318A (en) * | 2020-12-26 | 2021-04-27 | 广东湾区智能终端工业设计研究院有限公司 | Reset control circuit and method and terminal |
| CN114745630A (en) * | 2022-06-09 | 2022-07-12 | 荣耀终端有限公司 | Earphone, earphone system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021212718A1 (en) | 2021-10-28 |
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