A bone conduction hearing aid

Abstract

This application discloses a bone conduction hearing aid, which includes: an interface with a charging pin and a programming pin; a processing chip connected to the programming pin, through which the processing chip programs data to adjust the parameters of the bone conduction hearing aid; a battery management module connected to the charging pin; a battery connected to the battery management module for powering the bone conduction hearing aid; and a battery management module for controlling the battery charging current. This application simultaneously implements the charging and programming functions of the bone conduction hearing aid by providing an interface with both charging and programming pins.

Description

Technical Field

[0001] The present application relates to the field of hearing aids, and in particular to a bone conduction hearing aid. Background Art

[0002] Bone conduction hearing aids convert sound into mechanical vibrations of varying frequencies, transmitting them through the skull, bony labyrinth, inner ear lymph, organ of the choroid plexus, auditory nerve, and auditory center. Bone conduction hearing aids utilize bone conduction technology to receive sound waves, ensuring they adhere closely to the bones. Sound waves are transmitted directly through the bones to the auditory nerve, allowing both ears to remain open without damaging the periosteum.

[0003] In the prior art, bone conduction hearing aids are usually powered by button batteries, which require frequent battery replacement and are inconvenient to operate. On the other hand, bone conduction hearing aids require data burning and application burning. Usually, bone conduction hearing aids are only equipped with an interface for burning data. Summary of the Invention

[0004] In order to solve the above technical problems in the prior art, this application adopts a technical proposal: providing a bone conduction hearing aid, the bone conduction hearing aid comprising:

[0005] Interface, with charging pin and burning pin;

[0006] The processing chip is connected to the burning pin, and the processing chip burns data through the burning pin to adjust the parameters of the bone conduction hearing aid;

[0007] Battery management module, connected to the charging pin;

[0008] A battery, connected to the battery management module, for powering the bone conduction hearing aid;

[0009] The battery management module is used to control the charging current of the battery.

[0010] Optionally, the interface is a TYPE-C interface, and the TX+ pin, TX- pin, RX+ pin, and RX- pin of the TYPE-C interface are burning pins for burning data.

[0011] Optionally, the processing chip includes a first processing chip and a second processing chip, the I2C interface of the first processing chip is connected to the TX+ pin and the TX- pin, and the 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.

[0012] Optionally, the battery is a fast-charging lithium battery, and the battery management module controls the charging current according to the battery voltage.

[0013] Optionally, the battery management module detects that the battery voltage is within a preset first voltage range, and controls the charging current to be a preset first current to enable fast charging of the battery; the battery management module detects that the battery voltage reaches a preset second voltage, and controls the charging current to decrease; the battery management module detects that the charging current reaches a preset second current, and controls the battery to stop charging.

[0014] Optionally, the bone conduction hearing aid further includes a voltage regulator for converting the output voltage of the battery into a regulated voltage; the input end of the voltage regulator is connected to the output end of the battery, and the output end of the voltage regulator is respectively connected to the input end of the first processing chip and the input end of the second processing chip.

[0015] Optionally, the bone conduction hearing aid further comprises:

[0016] A power amplifier chip, wherein the input end of the power amplifier chip is connected to the output end of the first processing chip and the output end of the second processing chip respectively, and is used to amplify the audio signal of the first processing chip and the audio signal of the second processing chip;

[0017] The first speaker is connected to the output terminal of the power amplifier chip and is used to output the audio signal of the first processing chip after being amplified and processed by the power amplifier chip;

[0018] The second speaker is connected to the output end of the power amplifier chip and is used to output the audio signal of the second processing chip that has been amplified and processed by the power amplifier chip.

[0019] Optionally, the bone conduction hearing aid further comprises:

[0020] a first microphone connected to an input terminal of the first processing chip, and inputting a received audio signal into the first processing chip;

[0021] The second microphone is connected to the input end of the second processing chip and inputs the received audio signal to the second processing chip.

[0022] Optionally, the interface further includes an identification pin for identifying the functional accessory so that the bone conduction hearing aid is matched and connected with the functional accessory;

[0023] Bone conduction hearing aids further include:

[0024] A pull-down resistor, one end of which is connected to the identification pin, and the other end of which is grounded.

[0025] Optionally, the bone conduction hearing aid further includes a plurality of TVS tubes, one end of the TVS tube is connected to the burning pin or the charging pin, and the other end of the TVS tube is grounded for anti-static treatment.

[0026] The beneficial effects of the present application are: different from the existing technology, the present application realizes the charging and burning functions of the bone conduction hearing aid at the same time by providing an interface including a charging pin and a burning pin, so that the charging operation of the bone conduction hearing aid is convenient and simple; the interface realizes the charging function through the charging pin and realizes the burning function through the burning pin, and realizes two functions by one interface, without the need to set up a separate charging interface, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a schematic structural diagram of an embodiment of a bone conduction hearing aid of the present application;

[0029] Figure 2 is a structural schematic diagram of another embodiment of the bone conduction hearing aid of the present application;

[0030] Figure 3 yes Figure 2 Schematic diagram of the structure of the interface;

[0031] Figure 4 yes Figure 2 Wiring definition diagram of the interface. DETAILED DESCRIPTION

[0032] To help those skilled in the art better understand the technical solutions of this application, the bone conduction hearing aid provided by this application is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the described embodiments are only a portion of the embodiments of this application, and not all of them. All other embodiments derived by those skilled in the art based on the embodiments of this application without inventive effort are also within the scope of protection of this application.

[0033] The terms "first," "second," and the like in this application are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0034] See also Figure 1, is a schematic structural diagram of an embodiment of a bone conduction hearing aid of the present application. The bone conduction hearing aid 1 includes an interface 10, a processing chip 20, a battery management module 30, and a battery 40.

[0035] The interface 10 is provided with a charging pin and a programming pin. The charging pin is used to power the bone conduction hearing aid 1, and the programming pin is used to program data to adjust the parameters of the bone conduction hearing aid 1, thereby achieving adaptation between the bone conduction hearing aid 1 and different users.

[0036] The processing chip 20 is connected to the interface 10 via a programming pin, and a program with specific parameters is programmed via the programming pin. Optionally, the specific parameters may be response frequency, sensitivity, signal-to-noise ratio, transient response, distortion, and the like.

[0037] The battery management module 30 is connected to the interface 10 via a charging pin and is configured to receive and process an input voltage to control the charging current of the battery 40, thereby charging the battery 40. Optionally, the input voltage received by the battery management module 30 is 5V. Optionally, the battery management module 30 in this embodiment may be a BQ24045 module; in other embodiments, the battery management module 30 may be a battery management module of other models.

[0038] Battery 40 is connected to battery management module 30 and processing chip 20, respectively. When battery 40 is fully charged by battery management module 30, battery 40 stops charging. At the same time, battery 40 outputs voltage to processing chip 20, providing operating voltage for processing chip 20. Optionally, the output voltage of battery 40 is 1.2V.

[0039] 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. Compared with ordinary rechargeable lithium batteries, the maximum current is increased by 6-15 times, thereby achieving fast charging of the battery 40.

[0040] Specifically, the charging and discharging process of the battery 40 is as follows:

[0041] The battery management module 30 detects that the voltage of the battery 40 is within a preset first voltage range and controls the charging current to be a preset first current so as to enable the battery 40 to be quickly charged. At this time, the battery 40 is in a constant current charging stage, and the charging current is the first current.

[0042] The battery management module 30 detects that the voltage of the battery 40 reaches the preset second voltage and controls the charging current to decrease. At this time, the battery 40 is in the constant voltage charging stage and the charging voltage is the second voltage.

[0043] The battery management module 30 detects that the charging current reaches a preset second current and controls the battery 40 to stop charging.

[0044] Optionally, 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, that is, the operating voltage of the battery 40 is 4.35V and the cut-off current is 27mA.

[0045] Combine Figure 1 , see further Figure 2 , Figure 2 FIG2 is a schematic diagram of another embodiment of the bone conduction hearing aid of the present invention. The bone conduction hearing aid 1 further includes a voltage regulator 50 , an amplifier chip 60 , a first speaker 71 , a second speaker 72 , a first microphone 81 , and a second microphone 82 . The processing chip 20 includes a first processing chip 21 and a second processing chip 22 .

[0046] The input end of the voltage regulator 50 is connected to the output end of the battery 40, and the output end of the voltage regulator 50 is respectively connected to the input end of the first processing chip 21 and the second processing chip 22, so as to convert the output voltage of the battery 40 into a regulated voltage and output it to the first processing chip 21 and the second processing chip 22 to provide operating voltage for the first processing chip 21 and the second processing chip 22.

[0047] Since the operating voltage of the battery 40 is 4.35V, that is, the output voltage of the battery 40 is 4.35V, while the operating voltage of the first processing chip 21 and the second processing chip 22 is 1.2V, the output voltage of the battery 40 cannot be directly used as the operating voltage of the first processing chip 21 and the second processing chip 22 and needs to be stepped down. Therefore, in this embodiment, a voltage regulator 50 is provided at the output end of the battery 40 to step down the output voltage of the battery 40.

[0048] The voltage regulator 50 of this embodiment is a low voltage dropout linear regulator, which can convert an input voltage of 4.35V into an output voltage of 1.2V, so that the output voltage can meet the operating voltage requirements of the first processing chip 21 and the second processing chip 22 .

[0049] Optionally, the voltage stabilizer 50 in this embodiment may be a voltage stabilizer of the NCP163AMX120TBG model, and in other embodiments, the voltage stabilizer 50 may be a voltage stabilizer of other models.

[0050] The inputs of the first processing chip 21 and the second processing chip 22 are connected to the outputs of the first microphone 81 and the second microphone 82, respectively. The outputs of the first processing chip 21 and the second processing chip 22 are connected to the inputs of the power amplifier chip 60, respectively. The outputs of the power amplifier chip 60 are connected to the inputs of the first speaker 71 and the second speaker 72, respectively. Optionally, the power amplifier chip 60 in this embodiment may be a MAX98306 chip. In other embodiments, the power amplifier chip 60 may be other models of power amplifier chips.

[0051] The first microphone 81 outputs the received audio signal to the first processing chip 21; the first processing chip 21 processes the audio signal using a related algorithm and outputs the processed audio signal to the power amplifier chip 60; the power amplifier chip 60 amplifies the audio signal; and the first speaker 71 outputs the audio signal amplified by the power amplifier chip 60.

[0052] The second microphone 82 outputs the received audio signal to the second processing chip 22; the second processing chip 22 processes the audio signal using a related algorithm 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.

[0053] Optionally, the bone conduction hearing aid 1 further includes a volume button (not shown) for adjusting the volume of the output audio signal.

[0054] Combine Figure 2 , see further Figure 3-4 , Figure 3 yes Figure 2 The structural diagram of the interface, Figure 4 yes Figure 2 The interface 10 in the embodiment of the present application is a TYPE-C interface, which is compatible with the pins corresponding to the USB 3.0 protocol.

[0055] like Figure 4 As shown in the figure, the USB 3.0 protocol includes pins such as TX1+, TX1-, RX1+, RX1-, TX2+, TX2-, RX2+, RX2- and VBUS. Among them, the TX1+ pin and the TX2+ pin are connected together to form the TX+ pin; the TX1- pin and the TX2- pin are connected together to form the TX- pin; the RX1+ pin and the RX2+ pin are connected together to form the RX+ pin; the RX1- pin and the RX2- pin are connected together to form the RX- pin. Specifically, the TX+ pin, the TX- pin, the RX+ pin and the RX- pin correspond to Figure 3 The SSTXP1 pin, SSTXN1 pin, SSRXP1 pin, and SSRXN1 pin are shown; the VBUS pin corresponds to Figure 3 The VBUS0 pin is shown.

[0056] In this embodiment, the interface 10 uses the TX+ pin, TX- pin, RX+ pin, and RX- pin as the programming pins of the TYPE-C interface, and uses the VBUS0 pin as the charging pin of the TYPE-C interface.

[0057] Interface 10 is connected to the first processing chip 21 and the second processing chip 22, respectively. The programming pins of interface 10 are connected to the I2C interfaces of the first processing chip 21 and the second processing chip 22, respectively, so that data can be programmed simultaneously on the first processing chip 21 and the second processing chip 22. Specifically, the I2C interface of the first processing chip 21 includes the SCL1 and SAD1 pins, and the I2C interface of the second processing chip 22 includes the SCL2 and SAD2 pins. The TX+ and TX- pins are connected to the SCL1 and SAD1 pins, and the RX+ and RX- pins are connected to the SCL2 and SAD2 pins.

[0058] In this embodiment, the first processing chip 21 and the second processing chip 22 are specifically E7111 chips. The E7111 chip has high electrostatic sensitivity requirements and therefore requires anti-static treatment. The bone conduction hearing aid 1 further includes multiple TVS diodes (transient voltage suppressors), specifically a first TVS diode D1, a second TVS diode D2, a third TVS diode D3, a fourth TVS diode D4, and a fifth TVS diode D5.

[0059] like Figure 3 As shown, one end of the first TVS tube D1 is connected to the SCL1 pin, one end of the second TVS tube D2 is connected to the SAD1 pin, one end of the third TVS tube D3 is connected to the SCL2 pin, one end of the fourth TVS tube D4 is connected to the SAD2 pin, one end of the fifth TVS tube D5 is connected to the VBUS0 pin, and the other ends of the first TVS tube D1, the second TVS tube D2, the third TVS tube D3, the fourth TVS tube D4 and the fifth TVS tube D5 are grounded.

[0060] When a large transient interference voltage or pulse current occurs in a circuit due to lightning or other electrical interference, the TVS diode quickly switches to reverse conduction and clamps the circuit voltage to the required safety level, effectively protecting the delicate components in the electronic circuit from damage. After the interference pulse passes, the TVS diode switches back to reverse cutoff. Because the clamping voltage of the TVS diode during reverse conduction is lower than the maximum withstand voltage of the E7111 chip, it effectively protects the chip.

[0061] like Figure 3 As shown, the interface 10 further includes an identification pin CC1 for identifying a functional accessory so that the bone conduction hearing aid 1 can be matched with the functional accessory. Optionally, the functional accessory can be an external burning device, etc.

[0062] Bone conduction hearing aid 1 further includes a pull-down resistor R1, one end of which is connected to identification pin CC1, and the other end of which is grounded. Optionally, pull-down resistor R1 has a resistance of 5.1 kΩ. This embodiment, by providing pull-down resistor R1 at one end of identification pin CC1, improves the noise margin of the input signal of bone conduction hearing aid 1, while also achieving resistance matching and enhancing anti-interference capabilities.

[0063] The present application realizes the charging and burning functions of the bone conduction hearing aid 1 at the same time by providing an interface 10 including a charging pin and a burning pin, so that 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 and realizes the burning function through the burning pin. The two functions are realized by one interface, and there is no need to set up a separate charging interface, thereby reducing costs.

[0064] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A bone conduction hearing aid, characterized in that: include: A TYPE-C interface is provided with a charging pin, a burning pin, and an identification pin. The identification pin is used to identify a functional accessory so that the bone conduction hearing aid can be matched and connected with the functional accessory. The functional accessory includes an external burning device connected to the burning pin. The TYPE-C interface includes a TX+ pin, a TX- pin, an RX+ pin, and an RX- pin. a processing chip connected to the programming pin, wherein the processing chip programs data via the programming pin to adjust parameters of the bone conduction hearing aid; A battery management module connected to the charging pin; a battery, connected to the battery management module, for powering the bone conduction hearing aid; The battery management module is used to control the charging current of the battery; The processing chip includes a first processing chip, the I2C interface of the first processing chip is connected to the TX+ pin and TX- pin serving as the burning pins for burning data, and the TX+ pin and TX- pin are located on the same side of the TYPE-C interface.

2. The bone conduction hearing aid according to claim 1, characterized in that The processing chip also includes a second processing chip, the I2C interface of the second processing chip is connected to the RX+ pin and RX- pin serving as the burning pins, so that the first processing chip and the second processing chip burn data simultaneously; the RX+ pin and RX- pin are located on the other side of the TYPE-C interface.

3. The bone conduction hearing aid according to claim 1, characterized in that The battery is a fast-charging lithium battery, and the battery management module controls the charging current according to the voltage of the battery.

4. The bone conduction hearing aid according to claim 3, characterized in that The battery management module detects that the voltage of the battery is within a preset first voltage range, and controls the charging current to be the preset first current, so that the battery can be fast charged; the battery management module detects that the voltage of the battery reaches a preset second voltage, and controls the charging current to decrease; The battery management module detects that the charging current reaches a preset second current and controls the battery to stop charging.

5. The bone conduction hearing aid according to claim 2, characterized in that The bone conduction hearing aid further includes a voltage regulator for converting the output voltage of the battery into a regulated voltage; The input end of the voltage regulator is connected to the output end of the battery, and the output end of the voltage regulator is connected to the input end of the first processing chip and the input end of the second processing chip respectively.

6. The bone conduction hearing aid according to claim 5, characterized in that The bone conduction hearing aid further comprises: a power amplifier chip, wherein an input end of the power amplifier chip is connected to an output end of the first processing chip and an output end of the second processing chip, respectively, and is used to amplify the audio signal of the first processing chip and the audio signal of the second processing chip; a first speaker connected to the output terminal of the power amplifier chip, configured to output the audio signal of the first processing chip amplified and processed by the power amplifier chip; The second speaker is connected to the output end of the power amplifier chip and is used to output the audio signal of the second processing chip that has been amplified and processed by the power amplifier chip.

7. The bone conduction hearing aid according to claim 6, characterized in that The bone conduction hearing aid further comprises: a first microphone connected to an input terminal of the first processing chip and outputting a received audio signal to the first processing chip; The second microphone is connected to the input end of the second processing chip and outputs the received audio signal to the second processing chip.

8. The bone conduction hearing aid according to claim 1, wherein The bone conduction hearing aid further comprises: A pull-down resistor, one end of the pull-down resistor is connected to the identification pin, and the other end of the pull-down resistor is grounded.

9. The bone conduction hearing aid according to claim 8, characterized in that The bone conduction hearing aid further includes a plurality of TVS tubes, one end of each TVS tube is connected to the programming pin or the charging pin, and the other end of each TVS tube is grounded for anti-static treatment.

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