CN112073885A - Bone conduction hearing aid - Google Patents

Bone conduction hearing aid Download PDF

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Publication number
CN112073885A
CN112073885A CN202010737326.8A CN202010737326A CN112073885A CN 112073885 A CN112073885 A CN 112073885A CN 202010737326 A CN202010737326 A CN 202010737326A CN 112073885 A CN112073885 A CN 112073885A
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CN
China
Prior art keywords
pin
processing chip
hearing aid
bone conduction
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010737326.8A
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Chinese (zh)
Inventor
杨淞
游芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Voxtech Co Ltd
Original Assignee
Shenzhen Voxtech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Voxtech Co Ltd filed Critical Shenzhen Voxtech Co Ltd
Priority to CN202010737326.8A priority Critical patent/CN112073885A/en
Publication of CN112073885A publication Critical patent/CN112073885A/en
Priority to CN202180011587.4A priority patent/CN115053535A/en
Priority to PCT/CN2021/088370 priority patent/WO2022021954A1/en
Priority to US17/934,190 priority patent/US20230012492A1/en
Pending legal-status Critical Current

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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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/31—Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/33—Aspects relating to adaptation of the battery voltage, e.g. its regulation, increase or decrease
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Casings For Electric Apparatus (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application discloses bone conduction hearing aid, this bone conduction hearing aid includes: the interface is provided with a charging pin and a burning pin; the processing chip is connected with the burning pin and burns data through the burning pin so as to adjust parameters of the bone conduction hearing aid; the battery management module is connected with the charging pin; the battery is connected with the battery management module and used for supplying power to the bone conduction hearing aid; the battery management module is used for controlling the charging current of the battery. The interface with the charging pin and the burning pin is arranged, and the charging and burning functions of the bone conduction hearing aid are achieved at the same time.

Description

Bone conduction hearing aid
Technical Field
The present application relates to the field of hearing aids, and in particular to a bone conduction hearing aid.
Background
Bone conduction hearing aids transmit sound waves through the human skull, bone labyrinth, inner ear lymph, helicator, auditory nerve, and auditory center by converting sound into mechanical vibrations of different frequencies. The bone conduction hearing aid receives the sound by using a bone conduction technology, is tightly attached to the bone, and directly transmits the sound wave to the auditory nerve through the bone, so that the ears can be opened, and periosteum is not damaged.
In the prior art, a bone conduction hearing aid is usually powered by a button battery, the battery needs to be frequently replaced, and the operation is inconvenient. On the other hand, the bone conduction hearing aid needs to perform data burning and application program burning, and generally, the bone conduction hearing aid is only provided with an interface for burning data.
Disclosure of Invention
In order to solve the technical problems in the prior art, the application adopts a technical scheme that: there is provided a bone conduction hearing aid comprising:
the interface is provided with a charging pin and a burning pin;
the processing chip is connected with the burning pin and burns data through the burning pin so as to adjust parameters of the bone conduction hearing aid;
the battery management module is connected with the charging pin;
the battery is connected with the battery management module and used for supplying power to the bone conduction hearing aid;
the battery management module is used for controlling the charging current of the battery.
Optionally, the interface is a TYPE-C interface, and a TX + pin, a TX-pin, an RX + pin, and an RX-pin of the TYPE-C interface are burning pins for burning data.
Optionally, the processing chip includes a first processing chip and a second processing chip, an I2C interface of the first processing chip is connected to the TX + pin and the TX-pin, and an I2C interface of the second processing chip is connected to the RX + pin and the RX-pin, so that the first processing chip and the second processing chip burn data at the same time.
Optionally, the battery is a fast-charging lithium battery, and the battery management module controls the charging current according to the voltage of the battery.
Optionally, the battery management module detects that the voltage of the battery is in a preset first voltage range, and controls the charging current to be a preset first current so as to enable the battery to realize quick charging; the battery management module detects that the voltage of the battery reaches a preset second voltage and controls the charging current to be reduced; and the battery management module detects that the charging current reaches a preset second current and controls the battery to stop charging.
Optionally, the bone conduction hearing aid further comprises a potentiostat for converting the output voltage of the battery into a regulated voltage; the input end of the voltage stabilizer is connected with the output end of the battery, and the output end of the voltage stabilizer is respectively connected with the input end of the first processing chip and the input end of the second processing chip.
Optionally, the bone conduction hearing aid further comprises:
the input end of the power amplifier chip is respectively connected with the output end of the first processing chip and the output end of the second processing chip and is used for amplifying the audio signal of the first processing chip and the audio signal of the second processing chip;
the first loudspeaker is connected with the output end of the power amplifier chip and used for outputting the audio signal of the first processing chip amplified by the power amplifier chip;
and the second loudspeaker is connected with the output end of the power amplifier chip and used for outputting the audio signal of the second processing chip amplified by the power amplifier chip.
Optionally, the bone conduction hearing aid further comprises:
the first microphone is connected with the input end of the first processing chip and inputs the received audio signal to the first processing chip;
and the second microphone is connected with the input end of the second processing chip and inputs the received audio signal to the second processing chip.
Optionally, the interface further comprises an identification pin for identifying the functional accessory for mating connection of the bone conduction hearing aid with the functional accessory;
the bone conduction hearing aid further comprises:
and one end of the pull-down resistor is connected with the identification pin, and the other end of the pull-down resistor is grounded.
Optionally, the bone conduction hearing aid further comprises a plurality of TVS tubes, one end of each TVS tube is connected to the burn pin or the charge pin, and the other end of each TVS tube is grounded for anti-static processing.
The beneficial effect of this application is: different from the prior art, the bone conduction hearing aid has the advantages that the interface with the charging pin and the burning pin is arranged, and the charging and burning functions of the bone conduction hearing aid are realized simultaneously, so that the charging operation of the bone conduction hearing aid is convenient and simple; the interface realizes the function of charging through charging the pin, realizes burning the function through burning the pin, realizes two kinds of functions by an interface, need not to set up the interface that charges in addition, reduce cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a bone conduction hearing aid according to the present application;
fig. 2 is a schematic structural diagram of another embodiment of the bone conduction hearing aid of the present application;
FIG. 3 is a schematic diagram of the interface of FIG. 2;
fig. 4 is a wiring definition diagram of the interface of fig. 2.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the bone conduction hearing aid provided by the present application is described in further detail below with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second", etc. in this application are used to distinguish between different objects and not to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Please refer to fig. 1, which is a schematic structural diagram of an embodiment of a bone conduction hearing aid according to the present application. The bone conduction hearing aid 1 comprises an interface 10, a processing chip 20, a battery management module 30 and a battery 40.
The interface 10 is provided with a charging pin and a burning pin. The charging pin is used for supplying power to the bone conduction hearing aid 1, and the burning pin is used for burning data so as to adjust parameters of the bone conduction hearing aid 1, and further adaptation between the bone conduction hearing aid 1 and different users is achieved.
The processing chip 20 is connected to the interface 10 through a programming pin, and programs with specific parameters are programmed through the programming pin. Alternatively, the characteristic parameters may be response frequency, sensitivity, signal-to-noise ratio, transient response, and distortion factor.
The battery management module 30 is connected to the interface 10 through a charging pin, and is configured to receive an input voltage, process the input voltage, and control a charging current of the battery 40, so as to charge the battery 40. Optionally, the battery management module 30 receives an input voltage of 5V. Alternatively, the battery management module 30 of the present embodiment may be a BQ24045 module, and in other embodiments, the battery management module 30 may be a battery management module of other models.
The battery 40 is connected to the battery management module 30 and the processing chip 20, respectively. When the battery 40 completes charging through the battery management module 30, the battery 40 stops charging. Meanwhile, the battery 40 outputs a voltage to the processing chip 20 to provide an operating voltage to the processing chip 20. Alternatively, the output voltage of the battery 40 is 1.2V.
In this embodiment, the battery 40 is a fast-charging lithium battery, the maximum current of the fast-charging lithium battery can reach 3C, where C is the total capacity of the battery, and compared with a common rechargeable lithium battery, the maximum current is increased by 6-15 times, thereby realizing fast charging of the battery 40.
Specifically, the charge and discharge process of the battery 40 is as follows:
the battery management module 30 detects that the voltage of the battery 40 is in a preset first voltage range, and controls the charging current to be a preset first current so as to enable the battery 40 to realize quick charging, at this time, the battery 40 is in a constant current charging stage, and the charging current is the first current;
the battery management module 30 detects that the voltage of the battery 40 reaches a preset second voltage, and controls the charging current to decrease, at this time, the battery 40 is in a stage of constant-voltage charging, and the charging voltage is the second voltage;
the battery management module 30 detects that the charging current reaches the preset second current, and controls the battery 40 to stop charging.
Alternatively, the first voltage range may be (0V-4.35V), the second voltage may be 4.35V, the first current may be 540mA, and the second current may be 27mA, i.e., the operating voltage of the battery 40 is 4.35V and the off-current is 27 mA.
Referring further to fig. 2 in conjunction with fig. 1, fig. 2 is a schematic structural diagram of another embodiment of the bone conduction hearing aid of the present application. The bone conduction hearing aid 1 further comprises a voltage stabilizer 50, a power amplifier chip 60, a first speaker 71, a second speaker 72, a first microphone 81 and a second microphone 82, and the processing chip 20 comprises a first processing chip 21 and a second processing chip 22.
The input end of the voltage stabilizer 50 is connected with the output end of the battery 40, and the output end of the voltage stabilizer 50 is connected with the input ends of the first processing chip 21 and the second processing chip 22 respectively, so as to convert the output voltage of the battery 40 into a regulated voltage, and output the regulated voltage to the first processing chip 21 and the second processing chip 22, so as to provide a working voltage for the first processing chip 21 and the second processing chip 22.
Since the operating voltage of the battery 40 is 4.35V, that is, the output voltage of the battery 40 is 4.35V, and the operating voltages of the first processing chip 21 and the second processing chip 22 are 1.2V, the output voltage of the battery 40 cannot be directly used as the operating voltages of the first processing chip 21 and the second processing chip 22, and a voltage reduction process is required. Therefore, in the present embodiment, the voltage regulator 50 is provided at the output terminal of the battery 40, and the output voltage of the battery 40 is stepped down.
The voltage regulator 50 of the present embodiment is a low dropout linear regulator, and can convert an input voltage of 4.35V into an output voltage of 1.2V, so that the output voltage can satisfy the operating voltage requirements of the first processing chip 21 and the second processing chip 22.
Alternatively, the voltage regulator 50 may be a model NCP163AMX120TBG voltage regulator, and in other embodiments the voltage regulator 50 may be another model of voltage regulator.
The input ends of the first processing chip 21 and the second processing chip 22 are respectively connected to the output ends of the first microphone 81 and the second microphone 82, the output ends of the first processing chip 21 and the second processing chip 22 are respectively connected to the input end of the power amplifier chip 60, and the output end of the power amplifier chip 60 is respectively connected to the input ends of the first loudspeaker 71 and the second loudspeaker 72. Optionally, the power amplifier chip 60 may be a MAX98306 chip, and in other embodiments, the power amplifier chip 60 may be a power amplifier chip of another model.
The first microphone 81 outputs the received audio signal to the first processing chip 21; the first processing chip 21 performs processing of a correlation algorithm on the audio signal, and outputs the processed audio signal to the power amplifier chip 60; the power amplifier chip 60 amplifies the audio signal; the first speaker 71 outputs the audio signal amplified by the power amplifier chip 60.
The second microphone 82 outputs the received audio signal to the second processing chip 22; the second processing chip 22 performs processing of a correlation algorithm on the audio signal, and outputs the processed audio signal to the power amplifier chip 60; the power amplifier chip 60 amplifies the audio signal; the second speaker 72 outputs the audio signal amplified by the power amplifier chip 60.
Optionally, the bone conduction hearing aid 1 further comprises a volume button (not shown) for adjusting the volume level of the output audio signal.
With reference to fig. 2, further referring to fig. 3-4, fig. 3 is a schematic structural diagram of the interface in fig. 2, and fig. 4 is a wiring definition diagram of the interface in fig. 2. The interface 10 in the embodiment of the present application is a TYPE-C interface, and is compatible with a pin corresponding to a USB3.0 protocol.
As shown in FIG. 4, the USB3.0 protocol includes pins such as TX1+, TX1-, RX1+, RX1-, TX2+, TX2-, RX2+, RX 2-and VBUS. The TX1+ pin and the TX2+ pin are connected together to form a TX + pin; the TX 1-pin and the TX 2-pin are connected together to form a TX-pin; the RX1+ pin and the RX2+ pin are connected together to form an RX + pin; the RX 1-pin and the RX 2-pin are connected together to form an RX-pin. Specifically, the TX + pin, the TX-pin, the RX + pin and the RX-pin correspond to the SSTX 1 pin, SSTX 1 pin, SSRXP1 pin and SSRXN1 pin shown in FIG. 3; the VBUS pin corresponds to the VBUS0 pin shown in FIG. 3.
In the interface 10 of this embodiment, the TX + pin, the TX-pin, the RX + pin, and the RX-pin are used as the programming pins of the TYPE-C interface, and the VBUS0 pin is used as the charging pin of the TYPE-C interface.
The interface 10 is connected to the first processing chip 21 and the second processing chip 22, respectively, and the burning pins of the interface 10 are connected to the I2C interfaces of the first processing chip 21 and the second processing chip 22, respectively, so that the first processing chip 21 and the second processing chip 22 burn data at the same time. Specifically, the I2C interface of the first processing chip 21 includes SCL1 pins and SAD1 pins, and the I2C interface of the second processing chip 22 includes SCL2 pins and SAD2 pins. The TX + pin and the TX-pin are connected with the SCL1 pin and the SAD1 pin, and the RX + pin and the RX-pin are connected with the SCL2 pin and the SAD2 pin.
In the present embodiment, the first processing chip 21 and the second processing chip 22 are specifically E7111 chips. The E7111 chip has a high requirement on electrostatic sensitivity, and thus, the E7111 chip needs to be subjected to antistatic treatment. The bone conduction hearing aid 1 further comprises a plurality of TVS tubes (Transient Voltage super), in particular a first TVS tube D1, a second TVS tube D2, a third TVS tube D3, a fourth TVS tube D4 and a fifth TVS tube D5.
As shown in fig. 3, one end of the first TVS transistor D1 is connected to the SCL1 pin, one end of the second TVS transistor D2 is connected to the SAD1 pin, one end of the third TVS transistor D3 is connected to the SCL2 pin, one end of the fourth TVS transistor D4 is connected to the SAD2 pin, one end of the fifth TVS transistor D5 is connected to the VBUS0 pin, and the other ends of the first TVS transistor D1, the second TVS transistor D2, the third TVS transistor D3, the fourth TVS transistor D4, and the fifth TVS transistor D5 are grounded.
When transient interference voltage or pulse current with large amplitude appears due to lightning and various electrical appliance interference in the circuit, the TVS tube is rapidly switched into a reverse conduction state in a very short time, and the voltage of the circuit is clamped on a required safety value, so that precision components in an electronic circuit are effectively protected from being damaged. After the interference pulse passes, the TVS tube is switched to a reverse cut-off state again. When the TVS tube is conducted in the reverse direction, the clamping voltage of the TVS tube is lower than the highest withstand voltage of the E7111 chip, so that the TVS tube plays a role in protecting the E7111 chip.
As shown in fig. 3, the interface 10 further comprises an identification pin CC1 for identifying a functional accessory for the bone conduction hearing aid 1 to be mated with. Optionally, the functional accessory may be an external burning device or the like.
The bone conduction hearing aid 1 further includes a pull-down resistor R1, one end of the pull-down resistor R1 is connected to the identification pin CC1, and the other end of the pull-down resistor R1 is grounded. Optionally, the pull-down resistor R1 has a resistance of 5.1k Ω. In this embodiment, the pull-down resistor R1 is provided at one end of the identification pin CC1, so that the noise margin of the input signal of the bone conduction hearing aid 1 can be improved, and the resistance matching can be performed to enhance the anti-interference capability.
The interface 10 with the charging pin and the burning pin is arranged, so that the charging and burning functions of the bone conduction hearing aid 1 are realized, and the charging operation of the bone conduction hearing aid 1 is convenient and simple; the interface 10 realizes the charging function through the charging pin, realizes the burning function through the burning pin, realizes two functions through one interface, need not to set up the interface that charges in addition, reduce cost.
The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.

Claims (10)

1. A bone conduction hearing aid, comprising:
the interface is provided with a charging pin and a burning pin;
the processing chip is connected with the burning pin and burns data through the burning pin so as to adjust parameters of the bone conduction hearing aid;
the battery management module is connected with the charging pin;
the battery is connected with the battery management module and used for supplying power to the bone conduction hearing aid;
the battery management module is used for controlling the charging current of the battery.
2. The bone conduction hearing aid according to claim 1, wherein the interface is a TYPE-C interface, and a TX + pin, a TX-pin, an RX + pin, and an RX-pin of the TYPE-C interface are the burn pins for burning data.
3. The bone conduction hearing aid according to claim 2, wherein the processing chip comprises a first processing chip and a second processing chip, wherein an I2C interface of the first processing chip is connected to the TX + pin and the TX-pin, and an I2C interface of the second processing chip is connected to the RX + pin and the RX-pin, so that the first processing chip and the second processing chip burn data at the same time.
4. The bone conduction hearing aid according to claim 1, wherein the battery is a fast-charging lithium battery, and the battery management module controls the charging current according to a voltage of the battery.
5. The bone conduction hearing aid according to claim 4, wherein the battery management module detects that the voltage of the battery is in a preset first voltage range, and controls the charging current to be a preset first current so as to realize quick charging of the battery; the battery management module detects that the voltage of the battery reaches a preset second voltage and controls the charging current to be reduced; and the battery management module detects that the charging current reaches a preset second current and controls the battery to stop charging.
6. The bone conduction hearing aid according to claim 1, further comprising a regulator for converting the output voltage of the battery into a regulated voltage;
the input end of the voltage stabilizer is connected with the output end of the battery, and the output end of the voltage stabilizer is connected with the input end of the first processing chip and the input end of the second processing chip respectively.
7. The bone conduction hearing aid according to claim 6, characterized in that the bone conduction hearing aid further comprises:
the input end of the power amplifier chip is respectively connected with the output end of the first processing chip and the output end of the second processing chip and is used for amplifying the audio signal of the first processing chip and the audio signal of the second processing chip;
the first loudspeaker is connected with the output end of the power amplifier chip and used for outputting the audio signal of the first processing chip amplified by the power amplifier chip;
and the second loudspeaker is connected with the output end of the power amplifier chip and used for outputting the audio signal amplified by the power amplifier chip and processed by the second processing chip.
8. The bone conduction hearing aid according to claim 7, characterized in that the bone conduction hearing aid further comprises:
the first microphone is connected with the input end of the first processing chip and outputs the received audio signal to the first processing chip;
and the second microphone is connected with the input end of the second processing chip and outputs the received audio signal to the second processing chip.
9. The bone conduction hearing aid according to claim 8, wherein the interface further comprises an identification pin for identifying a functional accessory for mating connection of the bone conduction hearing aid with the functional accessory;
the bone conduction hearing aid further comprises:
and one end of the pull-down resistor is connected with the identification pin, and the other end of the pull-down resistor is grounded.
10. The bone conduction hearing aid according to claim 9, further comprising a plurality of TVS tubes, wherein one end of the TVS tubes is connected to the burn pin or the charge pin, and the other end of the TVS tubes is grounded for antistatic treatment.
CN202010737326.8A 2020-07-28 2020-07-28 Bone conduction hearing aid Pending CN112073885A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202010737326.8A CN112073885A (en) 2020-07-28 2020-07-28 Bone conduction hearing aid
CN202180011587.4A CN115053535A (en) 2020-07-28 2021-04-20 Sound production device
PCT/CN2021/088370 WO2022021954A1 (en) 2020-07-28 2021-04-20 Sound producing device
US17/934,190 US20230012492A1 (en) 2020-07-28 2022-09-21 Sound producing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010737326.8A CN112073885A (en) 2020-07-28 2020-07-28 Bone conduction hearing aid

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Publication Number Publication Date
CN112073885A true CN112073885A (en) 2020-12-11

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CN202180011587.4A Pending CN115053535A (en) 2020-07-28 2021-04-20 Sound production device

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CN202180011587.4A Pending CN115053535A (en) 2020-07-28 2021-04-20 Sound production device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022021954A1 (en) * 2020-07-28 2022-02-03 深圳市韶音科技有限公司 Sound producing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022021954A1 (en) * 2020-07-28 2022-02-03 深圳市韶音科技有限公司 Sound producing device

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